Child seat with seating sensing device and vehicle

Abstract

The present application relates to the technical field of child safety seats, solves the technical problem of poor accuracy of seat sensing in the prior art, and provides a child seat with a seat sensing device and a vehicle. The child seat comprises a seat body, a seat sensing device and a control device, wherein the seat body comprises a seat cushion and a backrest, the seat sensing device comprises a plurality of seat sensing units arranged at different positions in the seat cushion, the seat sensing units comprise, from top to bottom, a first polyester film, a first conductive sheet, a hollow support material, a second conductive sheet and a second polyester film bonded by waterproof adhesive; the hollow support material has a preset density corresponding to a deformation when subjected to a preset pressure; the control device is connected to the seat sensing device; and the control device controls the operation of the child seat after receiving a signal sent by a preset number of seat sensing units in a designated area of the seat. The present application can achieve accurate seat detection and is energy-saving and environmentally friendly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of child safety seats, in particular to a child seat with a seat occupancy sensing device and a vehicle. BACKGROUND

[0002] A child safety seat is a seat designed for children of different ages, installed in a car, and can effectively improve the safety of children during car travel. In the process of car travel, children sitting on the safety seat can ensure the safety of car travel; in addition, in order to prevent children from getting lost during the time when parents temporarily leave the car, parents usually also place children alone in the car on the safety seat. Therefore, the information of whether the child is seated is particularly important to the parents.

[0003] In order to solve this technical problem in the traditional technology, a cushion mechanism with a function of detecting whether a child is seated is developed, which detects whether a child is seated by setting detection devices such as pressure sensors, infrared sensors, etc. on the cushion, and timely prompts the detection information to the parents, helping the parents to monitor the seating situation of the child on the safety seat.

[0004] The existing Chinese patent CN210502381U discloses a cushion mechanism and a child safety seat, wherein the cushion mechanism includes a cushion part, at least two parallelly connected sensors, and a microprocessor, wherein the two sensors are symmetrically arranged on both sides of the central axis of the cushion part, the microprocessor is electrically connected to the two sensors, the two sensors are adapted to detect whether a child is seated and send a detection signal to the microprocessor, and if the microprocessor receives a detection signal representing that a child is not seated, an alarm instruction is sent to an external signal receiving device. However, this scheme cannot distinguish whether the object placed on the seat is a child or other objects, and there is a problem of poor accuracy of seat occupancy sensing. SUMMARY

[0005] Therefore, the embodiments of the present application provide a child seat with a seat occupancy sensing device and a vehicle to solve the technical problem of poor accuracy of seat occupancy sensing in the prior art.

[0006] In a first aspect, the embodiments of the present application provide a child seat with a seat occupancy sensing device, which comprises a seat body, a seat occupancy sensing device and a control device, wherein the seat body comprises a cushion and a backrest, the seat occupancy sensing device comprises a plurality of seat occupancy sensing units arranged at different positions in the cushion, wherein the seat occupancy sensing unit comprises a first polyester film, a first conductive sheet, a hollow support material, a second conductive sheet and a second polyester film which are adhered by waterproof glue from top to bottom, the hollow support material has a preset density corresponding to a deformation when subjected to a preset pressure, and the first conductive sheet and the second conductive sheet are controlled to be in contact by the deformation of the hollow support material to trigger the seat occupancy sensing unit to work.

[0007] The control device controls the child seat to work after receiving the signals sent by the preset number of the seat sensing units in the designated area of the seat.

[0008] Preferably, the seat cushion comprises, from inside to outside, a seat cushion rear area corresponding to the child's buttocks, a seat cushion middle area corresponding to the child's thigh root, and a seat cushion front area corresponding to the child's thigh knobby, the seat sensing device comprises a plurality of seat sensing units arranged in the seat cushion rear area, the seat cushion middle area, and the seat cushion front area, respectively, the hollow support material of the seat sensing unit in the seat cushion rear area has a first preset density, the hollow support material of the seat sensing unit in the seat cushion middle area has a second preset density, and the hollow support material of the seat sensing unit in the seat cushion front area has a third preset density, the first preset density is greater than the second preset density, and the second preset density is greater than the third preset density.

[0009] The designated area comprises the seat cushion middle area and the seat cushion rear area, or the seat cushion middle area and the seat cushion front area.

[0010] Preferably, the backrest comprises, from top to bottom, a headrest, a backrest upper area corresponding to the child's back, and a backrest lower area corresponding to the child's waist, the seat cushion further comprises an edge area corresponding to the child's shank arranged outside the seat cushion front area, and the seat sensing device further comprises a plurality of seat sensing units arranged in the backrest lower area and the edge area, wherein the hollow support material of the seat sensing unit in the backrest lower area has a fourth preset density, the seat sensing unit in the edge area has a fifth preset density, the fourth preset density is less than or equal to the second preset density and greater than the third preset density, and the fifth preset density is less than the third preset density.

[0011] The designated area comprises the seat cushion rear area, the seat cushion middle area, and the backrest lower area, or the seat cushion middle area, the seat cushion front area, and the edge area.

[0012] Preferably, the child seat further comprises a seat temperature adjusting device, the control device and the seat temperature adjusting device are connected, the control device controls the seat temperature adjusting device to start working to adjust the temperature of the seat body after receiving the signal sent by the preset number of seat sensing units in the specified area of the seat being triggered, wherein the seat temperature adjusting device comprises a plurality of temperature adjusting units arranged on the seat body, the seat sensing units are located below the temperature adjusting units, a heat insulation device is arranged between the seat sensing units and the temperature adjusting units, the heat insulation device comprises a buffer insulation layer, the buffer insulation layer is fixedly connected with the upper surface of the first polyester film of each seat sensing unit, and an aluminum film is covered on the upper surface of the buffer insulation layer.

[0013] Preferably, the child seat further comprises an upper surface cloth, a lower surface cloth and a cloth cover, the cloth cover is made of flame-retardant material and is detachably sleeved on the surface of the child seat, a first temperature sensor corresponding to the position of each temperature adjusting unit is arranged on the cloth cover, and a second temperature sensor is arranged on the surface of each temperature adjusting unit.

[0014] Preferably, the hollow supporting material is silica gel sponge, and the shape of the plurality of seat sensing units in the seat sensing device is at least one of a circle, a triangle and a rectangle.

[0015] Preferably, the seat temperature adjusting device comprises a plurality of temperature adjusting units arranged in the rear area of the seat cushion, the middle area of the seat cushion, the front area of the seat cushion, the upper area of the backrest and the upper area of the backrest respectively, and the seat temperature adjusting device obtains the triggering condition of the seat sensing units in the lower area of the backrest after receiving the signal sent by the preset number of seat sensing units in the specified area of the seat being triggered.

[0016] If the seat sensing units in the lower area of the backrest are triggered, the sitting posture of the seated child is a reclining sitting posture, and the temperature of all the temperature adjusting units is set to a preset comfortable temperature;

[0017] If the seat sensing units in the lower area of the backrest are not triggered, the seat temperature adjusting device obtains the triggering condition of the seat sensing units in the edge area;

[0018] If the seat sensing units in the edge area are triggered, the sitting posture of the seated child is a forward leaning sitting posture, the temperature adjusting units in the middle area of the seat cushion and the front area of the seat cushion are set to a preset compression temperature, the temperature adjusting units in the rear area of the seat cushion are set to a preset comfortable temperature, and the left temperature adjusting units and the right temperature adjusting units in the upper area of the backrest and the lower area of the backrest are all set to a preset away temperature;

[0019] Wherein, the preset far-away temperature is higher than the preset comfortable temperature, and the preset comfortable temperature is higher than the preset compression temperature.

[0020] Preferably, the seat cushion rear region, the seat cushion middle region, the seat cushion front region and the edge region each comprise two seat occupancy sensing units symmetrically arranged, respectively denoted as left seat occupancy sensing unit and right seat occupancy sensing unit;

[0021] Upon receiving the signals sent by the preset number of seat occupancy sensing units of the specified region of the seat, the seat temperature adjusting device acquires the triggering conditions of the seat occupancy sensing units of the lower backrest region;

[0022] If the seat occupancy sensing unit of the lower backrest region is triggered, the seat temperature adjusting device acquires the triggering conditions of all right seat occupancy sensing units in the lower backrest region, the seat cushion rear region and the seat cushion middle region;

[0023] If the seat occupancy sensing unit of the lower backrest region and the right seat occupancy sensing units in the seat cushion rear region and the seat cushion middle region are all triggered, the sitting posture of the child is leaning right with the back leaning backward;

[0024] If the seat occupancy sensing unit of the lower backrest region and the right seat occupancy sensing units in the seat cushion rear region and the seat cushion middle region are not triggered simultaneously, the seat temperature adjusting device acquires the triggering conditions of all left seat occupancy sensing units in the lower backrest region, the seat cushion rear region and the seat cushion middle region;

[0025] If the seat occupancy sensing unit of the lower backrest region and the left seat occupancy sensing units in the seat cushion rear region and the seat cushion middle region are all triggered, the sitting posture of the child is leaning left with the back leaning backward;

[0026] If the seat occupancy sensing unit of the lower backrest region and the left seat occupancy sensing units in the seat cushion rear region and the seat cushion middle region are not triggered simultaneously, the seat temperature adjusting device acquires the triggering conditions of all right seat occupancy sensing units in the lower backrest region, the seat cushion rear region and the seat cushion middle region;

[0027] If the seat occupancy sensing unit of the lower backrest region and the right seat occupancy sensing units in the seat cushion rear region and the seat cushion middle region are all triggered, the sitting posture of the child is leaning right with the back leaning backward;

[0028] If the seat occupancy sensing unit of the lower backrest region is not triggered, the seat temperature adjusting device acquires the triggering conditions of the seat occupancy sensing units of the edge region;

[0029] If the edge region seat occupancy sensing unit is triggered, the seat temperature adjustment device acquires the triggering condition of the right side seat occupancy sensing unit of the middle seat cushion region, the front seat cushion region and the edge region;

[0030] If the right side seat occupancy sensing units of the middle seat cushion region, the front seat cushion region and the edge region are all triggered, the seated child's sitting posture is right side forward leaning;

[0031] If the right side seat occupancy sensing units of the middle seat cushion region, the front seat cushion region and the edge region are not triggered simultaneously, the seat temperature adjustment device acquires the triggering condition of the left side seat occupancy sensing unit of the middle seat cushion region, the front seat cushion region and the edge region;

[0032] If the left side seat occupancy sensing units of the middle seat cushion region, the front seat cushion region and the edge region are all triggered, the seated child's sitting posture is left side forward leaning;

[0033] Preferably, the seat temperature adjustment device comprises two temperature adjustment units symmetrically arranged in the rear seat cushion region, the middle seat cushion region, the front seat cushion region, the upper backrest region and the lower backrest region, respectively, which are denoted as left side temperature adjustment unit and right side temperature adjustment unit;

[0034] When the seated child's sitting posture is backward leaning left leaning, the left side temperature adjustment unit of the rear seat cushion region and the middle seat cushion region is set to a preset compression temperature, the right side temperature adjustment unit is set to a preset away temperature, the left side temperature adjustment unit of the front seat cushion region is set to a preset comfortable temperature, and the right side temperature adjustment unit is set to a preset away temperature; the left side temperature adjustment unit of the upper backrest region and the lower backrest region is set to a preset compression temperature, and the right side temperature adjustment unit is set to a preset comfortable temperature;

[0035] When the seated child's sitting posture is backward leaning right leaning, the right side temperature adjustment unit of the rear seat cushion region and the middle seat cushion region is set to a preset compression temperature, the left side temperature adjustment unit is set to a preset away temperature, the right side temperature adjustment unit of the front seat cushion region is set to a preset comfortable temperature, and the left side temperature adjustment unit is set to a preset away temperature, the right side temperature adjustment unit of the upper backrest region and the lower backrest region is set to a preset compression temperature, and the left side temperature adjustment unit is set to a preset comfortable temperature;

[0036] When the seated child's sitting posture is left side forward leaning, the left side temperature adjustment unit of the middle seat cushion region and the front seat cushion region is set to a preset compression temperature, the right side temperature adjustment unit is set to a preset comfortable temperature, and the left side temperature adjustment unit and the right side temperature adjustment unit of the rear seat cushion region, the upper backrest region and the lower backrest region are all set to a preset away temperature;

[0037] When the sitting posture of the seated child is right side forward leaning, the right side temperature adjusting units of the middle area and the front area of the cushion are set to the preset compression temperature, the left side temperature adjusting units are set to the preset comfortable temperature, and the left side temperature adjusting units and the right side temperature adjusting units of the rear area of the cushion, the upper area of the backrest and the lower area of the backrest are all set to the preset away temperature.

[0038] In a second aspect, the embodiments of the present application provide a vehicle, which comprises the child seat with the seating sensing device according to the first aspect.

[0039] In summary, the beneficial effects of the present application are as follows:

[0040] The child seat with the seating sensing device and the vehicle provided by the embodiments of the present application have the following advantages: the seating sensing units are arranged at different positions of the seat, and the control device will only start to work when the preset number of seating sensing units in the specified area are triggered, which reduces the possibility of false positives, for example, when an object is placed on the seat or a child only lightly touches the seat, the child is not mistaken as having sat down, the seating state of the child can be accurately sensed in real time, the seat can more accurately adapt to the needs of the child, intelligent control is realized, and the comfort and safety of the child are improved; the control device controls the child seat to start to work only when the preset child seating condition is met, which not only ensures the safety and comfort of the child, but also saves electric energy and realizes green travel; the seating sensing units are adhered from top to bottom by waterproof glue, which ensures that the seat can still work normally when the seat encounters a small amount of liquid spillage, for example, when a child spills a drink, and prolongs the service life of the seat; the hollow support material has a preset density corresponding to a deformation generated when a preset pressure is received, the first conductive sheet and the second conductive sheet are controlled to be in contact by the deformation of the hollow support material to trigger the seating sensing unit to work, the seating sensing unit will not be triggered when the received pressure is less than the preset pressure, other objects are prevented from being mistakenly triggered, and each seating sensing unit comprises two polyester films, a conductive sheet and a hollow support material, which has a simple structure and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows, and other drawings can also be obtained by those skilled in the art without creative labor on the premise that these drawings are within the protection scope of the present application.

[0042] Figure 1 FIG. 1 is a structural schematic diagram of the child seat with the seating sensing device according to the embodiments of the present application;

[0043] Figure 2 FIG. 2 is a structural schematic diagram of the cushion of the child seat according to the embodiments of the present application;

[0044] Figure 3 Structure diagram of the seat cushion with the seat occupancy sensing unit of the embodiment of the present application;

[0045] Figure 4 Structure diagram of the rectangular seat occupancy sensing unit of the embodiment of the present application;

[0046] Figure 5 Structure diagram of the triangular seat occupancy sensing unit of the embodiment of the present application;

[0047] Figure 6 Structure diagram of the seat occupancy sensing unit of the embodiment of the present application.

[0048] Parts and numbers in the figure:

[0049] 1, seat body; 11, seat cushion; 12, backrest; 121, rear area of the seat cushion; 122, middle area of the seat cushion; 123, front area of the seat cushion; 2, seat occupancy sensing unit; 21, first polyester film; 22, first conductive sheet; 23, hollow support material; 24, second conductive sheet; 25, second polyester film. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. It should be noted that, in this document, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Moreover, the terms “include”, “contain” or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the elements defined by the statement “include” do not exclude the presence of additional identical elements in the process, method, article or device that includes the elements. If there is no conflict, the various features in the embodiments and examples of the present application can be combined with each other, and are all within the protection scope of the present application.

[0051] Please refer to Figures 1-4 The embodiment of the present application provides a child seat with a seating sensing device, the child seat comprising: a seat body 1, a seating sensing device and a control device, wherein the seat body comprises a seat cushion 12 and a backrest 11, the seating sensing device comprises a plurality of seating sensing units 2 arranged at different positions of the seat cushion, wherein the seating sensing unit 2 comprises a first polyester film 21, a hollow support material 23, a second conductive sheet 24 and a second polyester film 25 which are sequentially adhered by waterproof glue, the hollow support material has a preset density, both sides of the first polyester film and the second polyester film are provided with conductive sheets, which are respectively referred to as a first conductive sheet and a second conductive sheet, the hollow support material has a preset density which generates corresponding deformation when subjected to a preset pressure, and the first conductive sheet and the second conductive sheet are controlled to be in contact to trigger the seating sensing unit to work through the deformation of the hollow support material.

[0052] The control device controls the child seat to work after receiving signals sent by a preset number of seating sensing units of a designated area of the seat.

[0053] Specifically, the seat body is the main structure of the child seat, comprising a seat cushion and a backrest, for the child to sit down and lean back, the seating sensing device comprises a plurality of seating sensing units arranged at different positions of the seat cushion, the seating sensing unit is composed of a first polyester film, a hollow support material and a second polyester film which are sequentially adhered by waterproof glue, the hollow support material is a cushioning material with a preset density, the hollow support material has a preset density which generates corresponding deformation when subjected to a preset pressure, specifically, the hollow support material has a first state of being compressed by the preset pressure and a second state of not being subjected to pressure, the preset pressure corresponds to the preset density, which not only provides a comfortable sitting posture, but also ensures that the conductive sheets will be in contact only under the preset pressure, so that the seating sensing unit is short-circuited, which is regarded as the seating sensing unit being triggered, and the first state returns to the second state after not being subjected to pressure or the pressure being less than the preset pressure.

[0054] The preset density can be adjusted according to the actual height, weight and age of the child to adapt to the actual situation of different children; the preset position can be determined according to the weight distribution of the child after sitting down, for example, when the child sits down, the weight distribution is mainly concentrated on the hips and legs, so the preset position can include the hip area and the leg area, and when the hip area and the leg area are triggered at the same time, it is determined that the child is seated.

[0055] The working principle is as follows:

[0056] When a child sits in the seat, a specified number of seat sensing units in the designated area of the seat sensing device receive the pressure of the child's weight, causing the hollow support material between the first and second polyester sheets to be compressed, causing the conductive sheets on both sides to come into contact, causing the unit to be triggered, and then the control device controls the child seat to work; while a book or a piece of clothing and other objects, due to their small weight, the hollow support material has a preset density and can have a certain filtering effect on pressure, the pressure applied to the silicone sponge cannot cause the conductive sheets to come into contact, thereby failing to trigger the seat sensing unit; when placing an object with a relatively large weight such as a backpack, due to its relatively small volume compared to a child and its concentrated weight, it may only trigger a certain seat sensing unit and fail to trigger all seat sensing units in the preset position, thereby preventing the seat sensing from being triggered by the placement of the object.

[0057] The shape of the seat sensing unit can be changed according to the actual shape of the seat surface to conform to the shape of the seat surface.

[0058] In a specific embodiment, the shape of the seat sensing unit in the seat sensing device is one or more of a circle, a triangle, and a rectangle, so that the detection area of all the seat sensing units covers the seat cushion.

[0059] Specifically, since a complex seat surface generally has various screw holes, grooves, and reinforcing ribs, the seat sensing device needs to avoid these positions to accurately sense, as shown in Figures 4-6 The shape of the seat sensing unit in the seat sensing device is one or more of a circle, a triangle, and a rectangle, which can more flexibly adapt to various structures of the seat surface, avoiding screw holes, grooves, and reinforcing ribs, etc., to ensure the normal operation of the seat sensing device. By reasonably arranging and selecting the shape of the seat sensing unit, the accuracy and reliability of the seat sensing device can be ensured while ensuring the stability of the seat structure.

[0060] For example, a circular seat sensing unit can adapt to curves and grooves on the seat surface, while triangular and rectangular seat sensing units can better adapt to straight lines and corners. By combining the use of these different shapes of seat sensing units, each part of the seat surface can be effectively covered, achieving accurate detection of the child's sitting posture, and using different shapes of seat sensing units can also help improve the flexibility and adaptability of the system, allowing it to adapt to various types and designs of seats to meet the needs of different users.

[0061] And through the setting of different shapes of the seating sensing units, the sensing areas of all the seating sensing units cover the seat cushion. Unlike the prior art in which a plurality of points are used for detection, the present application uses a plurality of surfaces for sensing to more comprehensively and accurately obtain the sitting posture information of the child on the seat. The surface detection can better adapt to different sitting postures of the child due to the large coverage area, and can maintain high sensing accuracy even in the case that the child moves violently. The surface detection can more accurately analyze the pressure distribution of the contact surface between the child and the seat, which is helpful for determining whether the sitting posture of the child is correct and whether there is a potential safety risk.

[0062] The hollow support material can be one or more of polyurethane sponge, memory foam, silica gel sponge, and latex;

[0063] In a specific embodiment, the hollow support material is silica gel sponge. The silica gel sponge has good resilience durability and can still recover to the original state after long-term pressure bearing, without causing the device to fail. The silica gel sponge also has good waterproof performance, and the waterproof glue can be used to bond the silica gel sponge and the polyester sheet to form a sealed cavity that is waterproof, thereby forming a sensitive and waterproof pressure sensing system.

[0064] In an embodiment, as shown in Figure 2 The seat cushion comprises, from inside to outside, a seat cushion rear area 121 corresponding to the buttocks of the child, a seat cushion middle area 122 corresponding to the root of the thighs of the child, and a seat cushion front area 123 corresponding to the thighs of the child. The seating sensing device comprises a plurality of seating sensing units arranged in the seat cushion rear area and the seat cushion middle area, respectively. The hollow support material of the seating sensing unit in the seat cushion rear area has a first preset density, the hollow support material of the seating sensing unit in the seat cushion middle area has a second preset density, and the hollow support material of the seating sensing unit in the seat cushion front area has a third preset density. The first preset density is greater than the second preset density, and the second preset density is greater than the third preset density.

[0065] The specified area comprises the seat cushion middle area and the seat cushion rear area, or the seat cushion middle area and the seat cushion front area.

[0066] In this embodiment, the cushion is divided into a rear region corresponding to the child's buttocks, a middle region corresponding to the child's thigh root, and a front region corresponding to the child's thigh calf from inside to outside, and a plurality of seat sensing units are arranged in these regions. The hollow support material of the seat sensing units in different regions has different densities. The hollow support material in the rear region has the largest density, which is the first preset density. The hollow support material in the middle region has the second largest density, which is the second preset density. The hollow support material in the front region has the smallest density, which is the third preset density. Such a design is based on the pressure distribution characteristics of human sitting posture. The pressure on the buttocks is usually the largest, while the pressure on the thigh calf is relatively small.

[0067] The specified region includes the middle region and the rear region of the cushion, or the middle region and the front region of the cushion. When the seat sensing units in the rear region and the middle region of the cushion are triggered at the same time, or when the seat sensing units in the middle region and the front region of the cushion are triggered at the same time, the system determines that the child has been seated. These two trigger combination modes largely conform to the sitting posture characteristics of children and can effectively distinguish children from other objects. When a child sits on the seat, the buttocks and the back of the thigh will exert a large pressure, causing the seat sensing units in these two regions to be triggered. Similarly, the thigh root and the thigh calf may also trigger the seat sensing units at the same time due to the forward leaning of the child's sitting posture. If the user places a book or a tablet on the seat, since these objects are usually flat and the pressure distribution is relatively uniform, it is unlikely to simulate the sitting posture characteristics of the human body, so the specified combination of seat sensing units will not be triggered at the same time. When an irregularly shaped object such as a bag or a soft toy is placed on the seat, since the shape and weight distribution of these objects are significantly different from the child's sitting posture, it is also unlikely to trigger the preset combination of seat sensing units at the same time. If a heavy object is placed on the seat, although it may trigger some seat sensing units of the seat, since the pressure distribution of the heavy object does not conform to the human sitting posture, it will not trigger the preset number of seat sensing units in the specified region, thereby not triggering the control device to control the seat to work.

[0068] Through such a design, it can be ensured that the child seat only starts to work when the child is actually detected to be seated, avoiding energy waste and safety risks caused by misjudgment, and improving the intelligence and practicality of the product.

[0069] In one embodiment, the backrest, from top to bottom, includes a headrest, an upper backrest area corresponding to the child's back, and a lower backrest area corresponding to the child's waist. The seat cushion also includes an edge area disposed on the outer side of the front area of ​​the seat cushion. The seating sensing device also includes a plurality of seating sensing units disposed in the lower backrest area and the edge area. The hollow support material of the seating sensing unit in the lower backrest area has a fourth preset density, and the seating sensing unit in the edge area has a fifth preset density. The fourth preset density is less than or equal to the second preset density and greater than the third preset density, and the fifth preset density is less than the third preset density.

[0070] The designated area includes: the rear area of ​​the seat cushion, the middle area of ​​the seat cushion, and the lower area of ​​the backrest, or the middle area of ​​the seat cushion, the front area of ​​the seat cushion, and the edge area.

[0071] In this embodiment, different parts of the backrest and seat cushion are distinguished, and additional seating sensing units are added. The backrest is divided from top to bottom into a headrest corresponding to the child's head, an upper backrest area corresponding to the child's back, and a lower backrest area corresponding to the child's waist. The seat cushion includes a front area, a middle area, and a rear area, as well as an edge area corresponding to the child's lower legs. Several additional seating sensing units are distributed in the lower backrest area and the edge area. This design helps to more accurately detect the child's sitting posture and thus accurately determine whether the child has sat down.

[0072] The hollow support material of the seat-sensing unit in the lower backrest area and the edge area has a fourth preset density and a fifth preset density. Since a child's lower back exerts pressure on the seat when sitting, setting the hollow support material of the seat-sensing unit in the lower backrest area to the fourth preset density—a density between that of the hollow support material in the middle and front areas of the seat cushion—helps to more accurately detect the child's sitting position. Considering that the pressure on the edge area is generally lower, the fifth preset density of the seat-sensing unit in the edge area is lower than that in the front area of ​​the seat cushion. This helps ensure accurate detection even if the child's posture changes.

[0073] Detecting these two newly added areas provides more information, improving the child seat's ability to recognize children's sitting postures and, consequently, its ability to distinguish children from other objects. For example, when a child is sitting correctly, the seat can accurately determine this by analyzing pressure differences in various areas, avoiding misjudgments caused by incorrectly placed objects. This embodiment further optimizes the seat's performance, ensuring its stability and reliability in different usage scenarios.

[0074] In an embodiment, the child seat further comprises a seat temperature adjustment device, the control device is connected with the seat temperature adjustment device, and the control device controls the seat temperature adjustment device to start working to adjust the temperature of the seat body after receiving the signal sent by the preset number of seat sensing units in the designated area of the seat.

[0075] In the embodiment, each seat sensing unit is arranged below the temperature adjustment unit. In order to ensure that the seat sensing unit is not affected by the heat of the temperature adjustment unit, a heat insulation device is arranged between them. The heat insulation device is composed of a buffer heat insulation layer, and is fixedly connected with the upper surface of the first polyester film of each seat sensing unit. The material of the buffer heat insulation layer includes one or more of polyurethane foam, glass wool, rock wool, and pearl wool.

[0076] The seat temperature adjustment device comprises a plurality of temperature adjustment units arranged in the seat body. The control device is connected with the seat temperature adjustment device, and the control device controls the seat temperature adjustment device to start working to adjust the temperature of the seat body after receiving the signal sent by the preset number of seat sensing units in the designated area of the seat.

[0077] The seat temperature adjustment device comprises a plurality of temperature adjustment units arranged in the seat body. The temperature adjustment unit comprises a heating unit and / or a refrigeration unit. The heating unit can be a heating sheet, and in a specific embodiment, the heating sheet comprises one or more of a resistance heating sheet, a graphene heating sheet, and a PI heating sheet. The refrigeration unit can be a semiconductor refrigeration sheet or a phase change material refrigeration sheet.

[0078] In a specific embodiment, the buffer heat insulation layer is pearl wool, which is a commonly used heat insulation material and has good heat insulation performance, so that the heat generated by the temperature adjustment unit can be prevented from being transmitted to the seat sensing unit.

[0079] In addition, the upper surface of the buffer heat insulation layer is covered with an aluminum film. The aluminum film is a high-efficiency heat insulation material, which can reflect most of the heat, further enhancing the heat insulation effect of the heat insulation device. In this way, even if the temperature adjustment unit is in a working state and generates a large amount of heat, the seat sensing unit will not be affected and can work normally to accurately detect whether a child is seated.

[0080] The design ensures the detection accuracy of the seat sensing unit, avoids misjudgment caused by the heat of the temperature adjusting unit, and improves the safety and reliability of the child seat.

[0081] In an embodiment, the child seat further comprises an upper surface cloth, a lower surface cloth, and a cloth cover, wherein the cloth cover is made of a flame-retardant material, is detachably covered on the surface of the child seat, and is provided with a first temperature sensor corresponding to the position of each temperature adjusting unit; and each temperature adjusting unit is provided with a second temperature sensor on the surface thereof.

[0082] In the embodiment, the child seat further comprises an upper surface cloth, a lower surface cloth, and a cloth cover, the upper surface cloth and the lower surface cloth cover the upper surface and the lower surface of the seat, and provide a more comfortable sitting experience for the child, and also help to protect the material of the seat, the upper surface cloth and the lower surface cloth can be made of one or more of cotton, polyester fiber, nylon, and waterproof cloth; the cloth cover is made of a flame-retardant material, which means that even if the seat is accidentally overheated, the cloth cover is not easy to burn, and the safety of the child is protected; and the cloth cover is detachably connected with the child seat, the detachable connection can be easily washed and replaced, and the practicability of the seat is increased.

[0083] The cloth cover is provided with a first temperature sensor corresponding to the position of each temperature adjusting unit, which can monitor the surface temperature of the temperature adjusting unit in real time to prevent overheating. Each temperature adjusting unit is also provided with a second temperature sensor on the surface thereof, which can more directly monitor the working temperature of the temperature adjusting unit to ensure that it works within a safe range.

[0084] Specifically, the temperature obtained by the first temperature sensor is recorded as a real-time working temperature, when the real-time working temperature is greater than a preset first temperature threshold, the corresponding temperature adjusting unit is controlled to stop heating; the temperature obtained by the second temperature sensor is recorded as a real-time surface temperature, when the real-time surface temperature is less than a second temperature threshold, the corresponding temperature adjusting unit is controlled to start heating, to realize the heat preservation mode in a cycle, wherein the first temperature threshold and the second temperature threshold can be set by the user according to the actual situation, which is not specifically limited herein; in a specific embodiment, the child seat further comprises a display device arranged on the seat body, the display device is in communication connection with the second temperature sensor, obtains the real-time surface temperature and displays it, through the real-time display of the surface temperature of the seat, it can be ensured that the child is always in a comfortable and safe environment. If the temperature of the seat is too high or too low, the user can immediately take appropriate adjustment measures; and for children's products, safety is one of the most important design considerations. Through real-time monitoring and display of the temperature, safety problems caused by excessively high temperature can be prevented, and the safety of the child can be ensured.

[0085] In an embodiment, the height of the headrest is adjustable and symmetrically provided with at least two air vents, and the seat temperature adjusting device further comprises an air suction and supply unit arranged in the air vents, the air suction and supply unit having a supply air heating mode, an air suction cooling mode and a supply air cooling mode.

[0086] In the embodiment, the height of the headrest is adjustable to adapt to different ages and heights, thereby providing better support and comfort, and as the child grows, the seat can be adjusted accordingly, thereby prolonging the service life of the product; the headrest is symmetrically provided with at least two air vents, which helps to keep the inside of the seat ventilated and comfortable, especially in hot weather, which can prevent the child from sweating and being uncomfortable;

[0087] The air suction and supply unit arranged in the air vent has three modes: supply air heating mode, air suction cooling mode and supply air cooling mode. Such a design enhances the adaptability of the seat and the possibility of multi-seasonal use. In cold weather, the supply air heating mode can be used to provide warmth for the child; in hot weather, the air suction cooling mode or the supply air cooling mode can be used to lower the temperature of the seat, providing a more comfortable use experience.

[0088] In an embodiment, the seat temperature adjusting device comprises a plurality of temperature adjusting units arranged in the rear area of the seat cushion, the middle area of the seat cushion, the front area of the seat cushion, the upper area of the backrest and the upper area of the backrest, respectively, and after receiving the signals sent by a preset number of the seat occupancy sensing units of the specified area of the seat, the seat temperature adjusting device obtains the triggering condition of the seat occupancy sensing units of the lower area of the backrest;

[0089] If the seat occupancy sensing units of the lower area of the backrest are triggered, the sitting posture of the seated child is a reclining sitting posture, and the temperatures of all the temperature adjusting units are set to a preset comfortable temperature;

[0090] If the seat occupancy sensing units of the lower area of the backrest are not triggered, the seat temperature adjusting device obtains the triggering condition of the seat occupancy sensing units of the edge area;

[0091] If the seat occupancy sensing units of the edge area are triggered, the sitting posture of the seated child is a forward leaning sitting posture, the temperature adjusting units of the middle area of the seat cushion and the front area of the seat cushion are set to a preset compression temperature, the temperature adjusting unit of the rear area of the seat cushion is set to a preset comfortable temperature, and the left temperature adjusting unit and the right temperature adjusting unit of the upper area of the backrest and the lower area of the backrest are both set to a preset away temperature;

[0092] Wherein, the preset away temperature is higher than the preset comfortable temperature, and the preset comfortable temperature is higher than the preset compression temperature.

[0093] In the present embodiment, the seating sensing system of the child seat is able to sense and determine the sitting posture of the child by setting seating sensing units in different areas of the seat. According to different trigger combinations, the system is able to determine the specific sitting posture of the child and adjust the temperature accordingly, thereby providing a more suitable and comfortable sitting posture experience;

[0094] Through the combined triggering of the sensing units, the system is able to infer the sitting posture of the child. When the child is in a forward-leaning posture on the child seat, the weight distribution is mainly concentrated on the back of the thighs, the front of the thighs, and the lower legs. Since the angle between the thighs and the lower legs is usually reduced when leaning forward, the thighs and the lower legs are closer to the surface of the seat. This is because in the forward-leaning posture, the center of gravity of the human body moves forward, and in order to maintain balance, the legs will adjust accordingly, usually bending the knees, so that the lower legs are closer to the seat. Due to this change, the seating sensing units in the edge area are triggered, indicating that the child adopts a forward-leaning sitting posture. Therefore, when the seating sensing units in the middle area of the seat cushion, the front area of the seat cushion, and the edge area are all triggered, it means that the child's thighs and lower legs are close to the seat, which usually means that the child is in a forward-leaning posture;

[0095] When the child is in a backward-leaning posture on the child seat, the weight distribution is mainly concentrated on the waist, hips, and thighs. Therefore, when all the seating sensing units in the lower backrest area, the rear area of the seat cushion, and the middle area of the seat cushion are triggered, it means that the child's waist, hips, and thighs are close to the seat, which usually indicates that the child is in a backward-leaning sitting posture;

[0096] By sequentially obtaining the triggering conditions of the seating sensing units in different areas, the exact sitting posture of the child is gradually refined and determined. First, obtaining the triggering condition of the lower backrest area is to preliminarily determine whether the child is leaning forward or backward. This step-by-step determination can effectively avoid errors in overall sitting posture determination caused by false detection of a single area. The sitting posture of the child on the seat is first determined by the position of the back. When the back is close to the seat, it usually indicates that the child is leaning backward. Conversely, if the back does not trigger the sensing unit, it is more likely to be forward-leaning. Therefore, checking the lower backrest area first can quickly provide the system with a basic sitting posture direction.

[0097] Once the preliminary sitting posture of the child is determined, the temperature adjustment device can adjust the temperature of each area according to different sitting posture requirements. For example, in a forward-leaning sitting posture, the contact pressure of the child's thighs and the front of the seat cushion increases, so setting it to a preset compression temperature can provide better comfort, while those areas with less contact with the child can be set to a higher preset distance temperature to maintain overall warmth;

[0098] When the child is in a reclined sitting position, the child's back, hips and thighs have a large contact area with the seat. This sitting position means that the child's body is mostly in contact with the seat, evenly distributed, with no obvious compression or distanced areas that can make the child feel uncomfortable if the temperature of the area is set too high or too low. Since the contact of each area is relatively uniform in a reclined sitting position, the best strategy is to set a moderate, comfortable temperature for all areas.

[0099] After recognizing the child's sitting position, the seat temperature adjustment device adjusts the temperature of the seat body according to the specific sitting position of the child to ensure that the child can get a suitable temperature environment regardless of the sitting position; if the seat detects that the child's sitting position is incorrect, for example, the child is in a forward leaning position for more than a preset time threshold, the display device can issue a warning to remind the driver or guardian to adjust the child's sitting position.

[0100] In an embodiment, the seat cushion rear area, the seat cushion middle area, the seat cushion front area and the edge area each include two symmetrically arranged seat occupancy sensing units, respectively referred to as left and right seat occupancy sensing units;

[0101] After receiving the signals sent by the preset number of seat occupancy sensing units in the specified area of the seat, the seat temperature adjustment device obtains the triggering condition of the seat occupancy sensing unit in the lower backrest area;

[0102] If the seat occupancy sensing unit in the lower backrest area is triggered, the seat temperature adjustment device obtains the triggering condition of all right seat occupancy sensing units in the lower backrest area, the seat cushion rear area and the seat cushion middle area;

[0103] If the seat occupancy sensing unit in the lower backrest area and the right seat occupancy sensing units in the seat cushion rear area and the seat cushion middle area are all triggered, the sitting child's sitting position is reclined right;

[0104] If the seat occupancy sensing unit in the lower backrest area and the right seat occupancy sensing units in the seat cushion rear area and the seat cushion middle area are not triggered simultaneously, the seat temperature adjustment device obtains the triggering condition of all left seat occupancy sensing units in the lower backrest area, the seat cushion rear area and the seat cushion middle area;

[0105] If the seat occupancy sensing unit in the lower backrest area and the left seat occupancy sensing units in the seat cushion rear area and the seat cushion middle area are all triggered, the sitting child's sitting position is reclined left;

[0106] If the seat occupancy sensing unit of the lower back region and the left side seat occupancy sensing units in the rear cushion region and the middle cushion region are not triggered simultaneously, the seat temperature adjustment device acquires the triggering conditions of all right side seat occupancy sensing units in the lower back region, the rear cushion region and the middle cushion region;

[0107] If the seat occupancy sensing unit of the lower back region and the right side seat occupancy sensing units in the rear cushion region and the middle cushion region are triggered simultaneously, the seated child has a backward leaning right posture;

[0108] If the seat occupancy sensing unit of the lower back region is not triggered, the seat temperature adjustment device acquires the triggering condition of the seat occupancy sensing unit of the edge region;

[0109] If the seat occupancy sensing unit of the edge region is triggered, the seat temperature adjustment device acquires the triggering conditions of the right side seat occupancy sensing units in the middle cushion region, the front cushion region and the edge region;

[0110] If the right side seat occupancy sensing units in the middle cushion region, the front cushion region and the edge region are triggered simultaneously, the seated child has a right side leaning forward posture;

[0111] If the right side seat occupancy sensing units in the middle cushion region, the front cushion region and the edge region are not triggered simultaneously, the seat temperature adjustment device acquires the triggering conditions of the left side seat occupancy sensing units in the middle cushion region, the front cushion region and the edge region;

[0112] If the left side seat occupancy sensing units in the middle cushion region, the front cushion region and the edge region are triggered simultaneously, the seated child has a left side leaning forward posture;

[0113] In the present embodiment, the rear cushion region, the middle cushion region, the front cushion region and the edge region each include two seat occupancy sensing units symmetrically arranged, one on the left side and one on the right side. Such symmetric arrangement helps to capture whether the child has a leaning posture; through the triggering conditions of the seat occupancy sensing units in different regions, the system can further divide the forward and backward postures of the child, and more accurately identify the posture of the child, such as backward leaning right, backward leaning left, forward leaning right, forward leaning left, etc.

[0114] The working principle of the present embodiment is as follows: a plurality of main areas on the child seat are provided with symmetrical left and right sitting sensing units. When the sitting sensing unit on the seat is triggered, first check the sitting condition of the lower back area; if the lower back is triggered, further check the right sitting sensing unit of the seat cushion rear and middle part, if these are also triggered, judge as reclining right-leaning sitting posture, if not triggered at the same time, turn to check the left sitting sensing unit, if the left sitting sensing unit is triggered, judge as reclining left-leaning sitting posture;

[0115] If the lower back is not triggered, check the sitting sensing condition of the edge area, if the edge area is triggered, further check the right sitting condition of the seat cushion middle and front part, if the right side is triggered, judge as leaning forward right side sitting posture, if not triggered at the same time, check the left sitting condition, if the left side is triggered, judge as leaning forward left side sitting posture.

[0116] In the present embodiment, first judge the lower back area, because this is the main area where the child's waist contacts the seat, its state (whether triggered) can quickly determine whether the child is in a general reclining or leaning forward sitting posture; after determining the general sitting posture, the system further distinguishes left and right leaning; most people, including children, have one hand that is more frequently or flexible, called "dominant hand" or "leading hand". Right-handed people may tend to use and be close to their right side, while left-handed people are the opposite. Therefore, the dominant hand may affect their sitting posture tendency. Considering that most people are right-handed, they tend to use their right hand when performing some routine actions (such as picking up things, supporting the body, etc.), considering the dominance of the right hand, first judging the right side can reduce the misjudgment caused by accidental touching of the left side. Therefore, first judging the right side can ensure that the system has a faster response to the actual behavior of the child. This step-by-step, hierarchical detection strategy can speed up the determination of the sitting posture, making the system respond and provide appropriate temperature regulation faster.

[0117] In an embodiment, the seat temperature regulation device comprises two temperature regulation units symmetrically arranged in the seat cushion rear area, seat cushion middle area, seat cushion front area, lower back area and upper back area, respectively, which are respectively denoted as left and right temperature regulation units;

[0118] When the sitting posture of the sitting child is reclining left-leaning, the left temperature regulation unit of the seat cushion rear area and the thigh rear part is set to the preset compression temperature, the right temperature regulation unit is set to the preset away temperature, the left temperature regulation unit of the thigh front part is set to the preset comfortable temperature, and the right temperature regulation unit is set to the preset away temperature; the left temperature regulation unit of the upper back area and the lower back area is set to the preset compression temperature, and the right temperature regulation unit is set to the preset comfortable temperature;

[0119] when the seated child has a right side leaning back posture, the right side temperature adjusting unit of the seat cushion rear region and the seat cushion middle region is set to the preset compression temperature, the left side temperature adjusting unit is set to the preset away temperature, the right side temperature adjusting unit of the seat cushion front region is set to the preset comfortable temperature, the left side temperature adjusting unit is set to the preset away temperature, the right side temperature adjusting unit of the backrest upper region and the backrest lower region is set to the preset compression temperature, and the left side temperature adjusting unit is set to the preset comfortable temperature;

[0120] when the seated child has a left side leaning forward posture, the left side temperature adjusting unit of the seat cushion middle region and the seat cushion front region is set to the preset compression temperature, the right side temperature adjusting unit is set to the preset comfortable temperature, and the left side temperature adjusting unit and the right side temperature adjusting unit of the seat cushion rear region, the backrest upper region and the backrest lower region are all set to the preset away temperature;

[0121] when the seated child has a right side leaning forward posture, the right side temperature adjusting unit of the seat cushion middle region and the seat cushion front region is set to the preset compression temperature, the left side temperature adjusting unit is set to the preset comfortable temperature, and the left side temperature adjusting unit and the right side temperature adjusting unit of the seat cushion rear region, the backrest upper region and the backrest lower region are all set to the preset away temperature;

[0122] wherein the preset away temperature is higher than the preset comfortable temperature, and the preset comfortable temperature is higher than the preset compression temperature.

[0123] In the embodiment, two temperature adjusting units symmetrically arranged in the seat cushion rear region, the seat cushion middle region, the seat cushion front region, the backrest lower region and the backrest upper region are respectively denoted as the left side temperature adjusting unit and the right side temperature adjusting unit;

[0124] when the child has a right side leaning back posture, the child leans back and the body leans to the right side, causing the left side to bear greater pressure, and the other side to have reduced contact with the seat and bear greater pressure, the side bearing greater pressure is set to the preset compression temperature, and the other side is increased to the preset away temperature to keep warm and comfortable. The waist region and the backrest upper region are also adjusted in temperature, so that the left side temperature adjusting unit of the seat cushion middle region and the seat cushion front region is set to the preset compression temperature, the right side temperature adjusting unit is set to the preset comfortable temperature, and the left side temperature adjusting unit and the right side temperature adjusting unit of the seat cushion rear region, the backrest upper region and the backrest lower region are all set to the preset away temperature;

[0125] Similarly, when a child is in a reclining position to the right, the temperature settings are reversed compared to when reclining to the left. The right temperature adjustment unit in the rear and middle areas of the seat cushion is set to the preset pressure temperature, and the left temperature adjustment unit is set to the preset distance temperature. The right temperature adjustment unit in the front area of ​​the seat cushion is set to the preset comfort temperature, and the left temperature adjustment unit is set to the preset distance temperature. The right temperature adjustment unit in the upper and lower areas of the backrest is set to the preset pressure temperature, and the left temperature adjustment unit is set to the preset comfort temperature.

[0126] When a child is in a forward-leaning sitting posture, the child's body leans forward, the weight is concentrated in the thigh area, while the contact between the buttocks, back and waist and the seat is reduced. The temperature regulation unit in the thigh area is maintained at a preset pressure temperature to avoid discomfort caused by the temperature of the weight-concentrated area being too high. Meanwhile, the temperature of the buttocks, back and lower back is raised to a preset distance temperature to keep these areas warm.

[0127] When a child is leaning forward to the left or right, the child's body leans forward and tilts to one side, causing one thigh to be under greater pressure, while the other thigh, buttocks, back and waist have less contact with the seat. The thigh under greater pressure is set to the preset pressure temperature, the other thigh is set to the preset comfort temperature, and all temperature adjustment units for the buttocks, back and waist are raised to the preset away temperature.

[0128] The preset "away temperature" is the highest because when a body area has less contact with the seat, the heat dissipation in that area increases, as air is an excellent insulator. To maintain comfort in this area, the seat temperature needs to be set relatively high. The preset "comfort temperature" is a medium temperature, designed to provide overall comfort. The preset "pressure temperature" is the lowest. When a body area has a larger contact area with the seat or experiences greater pressure, heat dissipation in that area decreases. Therefore, to prevent overheating and maintain comfort, the seat temperature in this area needs to be set relatively low. This design aims to intelligently adjust the temperature of different areas to adapt to children's different sitting postures and contact pressures, ensuring a comfortable experience regardless of how the child's sitting posture changes.

[0129] In one embodiment, the child seat further includes a seat belt device, which includes a seat belt and a tightening device. The tightening device is electrically connected to the seating sensor to obtain the sitting posture of the seated child. When the sitting posture of the seated child is upright and leaning forward, leaning forward to the left, or leaning forward to the right for a period of time exceeding a preset time threshold, the tightening device controls the seat belt to tighten.

[0130] In the embodiment, the child seat is equipped with a safety belt device, which includes a safety belt and a tightening device, wherein the tightening device is electrically connected with the seating sensing device to obtain the sitting posture information of the child in real time, and when the seating sensing device detects that the sitting posture of the child is forward leaning, left side leaning or right side leaning, and the state lasts for more than a preset time threshold, the tightening device is activated. After activation, the tightening device controls the safety belt to tighten, thereby ensuring the safety of the child;

[0131] Since the tightening device can obtain the sitting posture information of the child in real time, it can quickly respond to the action of the child and timely adjust. When the sitting posture of the child is forward leaning, it may increase the safety risk. If the state lasts for a long time, the activation of the tightening device can timely fix the child and reduce the safety hidden danger caused by unstable sitting posture. Through the preset time threshold, the overreaction to the normal action of the child for a short time is avoided, and the system only makes adjustment when the unsafe sitting posture lasts for a certain time, which not only ensures safety but also avoids unnecessary discomfort, so that the child seat can more effectively protect the safety of the child and also provide a better comfortable experience.

[0132] In an embodiment, the seating sensing device further comprises a fault detection unit connected with each seating sensing unit, for detecting each seating sensing unit after the power of the vehicle or the child seat is turned on, to determine the working state of each seating sensing unit, and modifying the specified area and issuing an alarm according to the working state;

[0133] In an embodiment, the seating sensing device comprises seating sensing units arranged in the rear area of the seat cushion, the middle area of the seat cushion, the front area of the seat cushion, the edge area and the lower area of the backrest;

[0134] For example, when the seating sensing unit in the rear area of the seat cushion is damaged, the specified area is modified to the front area of the seat cushion, the middle area of the seat cushion and the lower area of the backrest;

[0135] Since the rear area of the seat cushion is triggered in most sitting postures, if the area fails, the sensing units in the rear of the thighs and the lower area of the backrest can be set as the key detection areas. Because these two areas are also in contact with the seat in most sitting postures and can represent whether the child is actually seated on the seat. When the sensing units in the front area of the seat cushion, the middle area of the seat cushion and the lower area of the backrest are triggered at the same time, it is judged that the child is seated, and the control device is controlled;

[0136] When the seat cushion front area seat occupancy sensing unit is damaged, the modified designated area includes: seat cushion rear area, seat cushion middle area and backrest lower area, in this case, the absence of sensing in the front thigh area will not significantly affect the overall judgment, because other main contact areas are still working;

[0137] When the seat cushion middle area seat occupancy sensing unit is damaged, the modified designated area includes: seat cushion rear area, seat cushion front area, backrest lower area and edge area seat occupancy sensing unit must be triggered. At this time, the sensing unit in the edge area is also taken into account, providing additional protection;

[0138] When two or more seat occupancy sensing units are damaged, the main goal is to ensure that the basic functions of the child seat are still effective, and to some extent, allow false positives to ensure child safety. For example, when the seat cushion rear area and seat cushion front area seat occupancy sensing units are damaged, the modified designated area includes: seat cushion middle area or backrest lower area or edge area, and any one sensing unit is triggered, it is considered that the child has been seated;

[0139] These modified preset conditions are designed to ensure that the child seat can still function basically in the case of partial sensing unit damage. By detecting the working state of each seat occupancy sensing unit, the system can immediately identify and correct any potential faults or abnormalities, ensuring that the child seat always operates in the best state. When a problem is detected in a seat occupancy sensing unit, the fault detection unit will issue an alarm. This allows the user to know when maintenance or replacement is needed, thereby avoiding the use of a damaged seat for a long time.

[0140] Embodiment 2

[0141] The embodiment of the application provides a vehicle, which comprises a vehicle body and the child seat with the seat occupancy sensing device according to the embodiment 1 arranged in the vehicle body.

[0142] The vehicle provided with the child seat has multiple benefits, not only improving the safety and comfort of children, but also increasing the convenience of drivers;

[0143] Specifically, through real-time monitoring of the child's sitting posture, abnormal movements of the child, such as sudden forward leaning, can be detected in time, and safety measures can be taken in time. The seat can adjust the temperature individually according to the specific sitting posture of the child, whether heating or cooling, to ensure that the child is in a comfortable temperature environment. If the child continues to be in an unhealthy sitting posture, the seat may prompt the driver or the child himself to adjust the sitting posture through some means such as sound or vibration.

[0144] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A child seat having a seating sensing device, characterized by, The child seat comprises a seat body, a seating sensing device and a control device, wherein the seat body comprises a seat cushion and a backrest, the seating sensing device comprises a plurality of seating sensing units arranged at different positions in the seat cushion, wherein the seating sensing unit comprises a first polyester film, a first conductive sheet, a hollow support material, a second conductive sheet and a second polyester film which are sequentially arranged from top to bottom and are bonded by waterproof adhesive, the hollow support material has a preset density which generates corresponding deformation when subjected to a preset pressure, and the deformation of the hollow support material controls the contact between the first conductive sheet and the second conductive sheet to trigger the operation of the seating sensing unit; The control device controls the operation of the child seat after receiving the signals sent by the preset number of seating sensing units in the specified area of the seat; The seat cushion comprises a seat cushion rear area corresponding to the buttocks of a child, a seat cushion middle area corresponding to the root of the thighs of a child and a seat cushion front area corresponding to the thighs of a child which are sequentially arranged from inside to outside, and the seating sensing device comprises a plurality of seating sensing units arranged in the seat cushion rear area, the seat cushion middle area and the seat cushion front area, respectively; The backrest comprises a headrest, a backrest upper area corresponding to the back of a child and a backrest lower area corresponding to the waist of a child which are sequentially arranged from top to bottom, and the seat cushion further comprises an edge area corresponding to the shank of a child arranged outside the seat cushion front area, and the seating sensing device further comprises a plurality of seating sensing units arranged in the backrest lower area and the edge area; The child seat further comprises a seat temperature adjusting device, the control device is connected with the seat temperature adjusting device, and the control device controls the seat temperature adjusting device to start working to adjust the temperature of the seat body after receiving the signals sent by the preset number of seating sensing units in the specified area of the seat, wherein the seat temperature adjusting device comprises a plurality of temperature adjusting units arranged in the seat body; The seat temperature adjusting device comprises a plurality of temperature adjusting units arranged in the seat cushion rear area, the seat cushion middle area, the seat cushion front area, the backrest upper area and the backrest lower area, respectively, and the seat temperature adjusting device obtains the triggering condition of the seating sensing units in the backrest lower area after receiving the signals sent by the preset number of seating sensing units in the specified area of the seat; If the seating sensing units in the backrest lower area are triggered, the sitting posture of the child is a backward-leaning sitting posture, and the temperature of all the temperature adjusting units is set to a preset comfortable temperature; If the seating sensing units in the backrest lower area are not triggered, the seat temperature adjusting device obtains the triggering condition of the seating sensing units in the edge area; If the sitting child is in a forward-leaning sitting posture when the sitting-sensing unit in the edge region is triggered, the temperature adjustment units in the middle cushion region and the front cushion region are set to a preset compression temperature, and the temperature adjustment units in the back cushion region, the upper backrest region and the lower backrest region are set to a preset comfortable temperature. The preset far-away temperature is higher than the preset comfortable temperature, and the preset comfortable temperature is higher than the preset compression temperature.

2. Child seat with seating sensing device according to claim 1, characterized in that The hollow support material of the sitting-sensing unit in the back cushion region has a first preset density, the hollow support material of the sitting-sensing unit in the middle cushion region has a second preset density, and the hollow support material of the sitting-sensing unit in the front cushion region has a third preset density. The first preset density is greater than the second preset density, and the second preset density is greater than the third preset density. The specified region includes the middle cushion region and the back cushion region, or the middle cushion region and the front cushion region.

3. Child seat with seating sensing device according to claim 2, characterized in that The hollow support material of the sitting-sensing unit in the lower backrest region has a fourth preset density, and the hollow support material of the sitting-sensing unit in the edge region has a fifth preset density. The fourth preset density is less than or equal to the second preset density and greater than the third preset density, and the fifth preset density is less than the third preset density. The specified region includes the back cushion region, the middle cushion region and the lower backrest region, or the middle cushion region, the front cushion region and the edge region.

4. Child seat with seating sensing device according to claim 3, characterized in that The sitting-sensing unit is located below the temperature adjustment unit, and a heat insulation device is arranged between the sitting-sensing unit and the temperature adjustment unit. The heat insulation device includes a buffer heat insulation layer, which is fixedly connected to the upper surface of the first polyester film of each sitting-sensing unit. An aluminum film is arranged on the upper surface of the buffer heat insulation layer.

5. Child seat with seating sensing device according to claim 4, characterized in that The child seat further includes an upper surface cloth, a lower surface cloth and a cloth cover. The cloth cover is made of a flame-retardant material and is detachably sleeved on the surface of the child seat. The cloth cover is provided with a first temperature sensor corresponding to the position of each temperature adjustment unit. Each temperature adjustment unit is provided with a second temperature sensor.

6. The child seat with a seating sensing device according to claim 1, wherein The hollow support material is silica gel sponge, and the shape of the sitting-sensing units in the sitting-sensing device is at least one of a circle, a triangle and a rectangle.

7. The child seat with a seating sensing device according to claim 1, wherein The back cushion region, the middle cushion region, the front cushion region and the edge region each include two symmetrically arranged sitting-sensing units, which are respectively referred to as a left sitting-sensing unit and a right sitting-sensing unit. After receiving the signals sent by the preset number of sitting-sensing units in the specified region of the seat, the seat temperature adjustment device obtains the triggering condition of the sitting-sensing unit in the lower backrest region. If the seat occupancy sensing unit of the lower backrest region is triggered, the seat temperature adjusting device acquires the triggering conditions of all right side seat occupancy sensing units in the lower backrest region, the rear seat cushion region and the middle seat cushion region; If the seat occupancy sensing unit of the lower backrest region and the right side seat occupancy sensing units in the rear seat cushion region and the middle seat cushion region are all triggered, the sitting posture of the seated child is leaning right and leaning back; If the seat occupancy sensing unit of the lower backrest region and the right side seat occupancy sensing units in the rear seat cushion region and the middle seat cushion region are not triggered simultaneously, the seat temperature adjusting device acquires the triggering conditions of all left side seat occupancy sensing units in the lower backrest region, the rear seat cushion region and the middle seat cushion region; If the seat occupancy sensing unit of the lower backrest region and the left side seat occupancy sensing units in the rear seat cushion region and the middle seat cushion region are all triggered, the sitting posture of the seated child is leaning left and leaning back; If the seat occupancy sensing unit of the lower backrest region and the left side seat occupancy sensing units in the rear seat cushion region and the middle seat cushion region are not triggered simultaneously, the seat temperature adjusting device acquires the triggering conditions of all right side seat occupancy sensing units in the lower backrest region, the rear seat cushion region and the middle seat cushion region; If the seat occupancy sensing unit of the lower backrest region and the right side seat occupancy sensing units in the rear seat cushion region and the middle seat cushion region are all triggered, the sitting posture of the seated child is leaning right and leaning back; If the seat occupancy sensing unit of the lower backrest region is not triggered, the seat temperature adjusting device acquires the triggering conditions of the seat occupancy sensing unit of the edge region; If the seat occupancy sensing unit of the edge region is triggered, the seat temperature adjusting device acquires the triggering conditions of the right side seat occupancy sensing units in the middle seat cushion region, the front seat cushion region and the edge region; If the right side seat occupancy sensing units in the middle seat cushion region, the front seat cushion region and the edge region are all triggered, the sitting posture of the seated child is leaning forward right; If the right side seat occupancy sensing units in the middle seat cushion region, the front seat cushion region and the edge region are not triggered simultaneously, the seat temperature adjusting device acquires the triggering conditions of the left side seat occupancy sensing units in the middle seat cushion region, the front seat cushion region and the edge region; If the left side seat occupancy sensing units in the middle seat cushion region, the front seat cushion region and the edge region are all triggered, the sitting posture of the seated child is leaning forward left.

8. Child seat with seating sensing device according to claim 7, characterized in that The seat temperature adjusting device comprises two temperature adjusting units symmetrically arranged in the rear seat cushion region, the middle seat cushion region, the front seat cushion region, the upper backrest region and the lower backrest region, respectively, which are denoted as left side temperature adjusting unit and right side temperature adjusting unit. When the sitting posture of the seated child is leaning left, the left temperature adjustment unit of the seat cushion rear region and the seat cushion middle region is set to the preset compression temperature, the right temperature adjustment unit is set to the preset away temperature, the left temperature adjustment unit of the seat cushion front region is set to the preset comfortable temperature, and the right temperature adjustment unit is set to the preset away temperature; the left temperature adjustment unit of the backrest upper region and the backrest lower region is set to the preset compression temperature, and the right temperature adjustment unit is set to the preset comfortable temperature. When the sitting posture of the seated child is leaning right, the right temperature adjustment unit of the seat cushion rear region and the seat cushion middle region is set to the preset compression temperature, the left temperature adjustment unit is set to the preset away temperature, the right temperature adjustment unit of the seat cushion front region is set to the preset comfortable temperature, and the left temperature adjustment unit is set to the preset away temperature; the right temperature adjustment unit of the backrest upper region and the backrest lower region is set to the preset compression temperature, and the left temperature adjustment unit is set to the preset comfortable temperature. When the sitting posture of the seated child is leaning left, the left temperature adjustment unit of the seat cushion rear region and the seat cushion middle region is set to the preset compression temperature, the right temperature adjustment unit is set to the preset away temperature, the left temperature adjustment unit of the seat cushion front region is set to the preset comfortable temperature, and the right temperature adjustment unit is set to the preset away temperature; the left temperature adjustment unit of the backrest upper region and the backrest lower region is set to the preset compression temperature, and the right temperature adjustment unit is set to the preset comfortable temperature. When the sitting posture of the seated child is leaning right, the right temperature adjustment unit of the seat cushion rear region and the seat cushion middle region is set to the preset compression temperature, the left temperature adjustment unit is set to the preset away temperature, the right temperature adjustment unit of the seat cushion front region is set to the preset comfortable temperature, and the left temperature adjustment unit is set to the preset away temperature; the right temperature adjustment unit of the backrest upper region and the backrest lower region is set to the preset compression temperature, and the left temperature adjustment unit is set to the preset comfortable temperature.

9. A vehicle characterized by comprising: The vehicle comprises the child seat with the seat sensing device according to any one of claims 1 to 8.

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