Multi-mode sensing child anti-falling bed

Abstract

The invention discloses a multi-mode sensing child anti-falling bed, and relates to the technical field of child protection appliances, the multi-mode sensing child anti-falling bed comprises a bed body, one end of the bed body is fixedly provided with a bed head baffle, the other end of the bed body is fixedly provided with a bed tail baffle, the surface of the bed tail baffle is fixedly connected with a control panel and an alarm, and the alarm is an audible and visual alarm. A processor is installed in the bed tail baffle, and the control panel and the alarm are both in electric signal connection with the processor. Guardrail mechanisms are arranged on the two sides of the bed body and incline inwards. The guardrail mechanism inclines inwards, the feet of an infant lack of acting points and are difficult to climb, the rotatable rollers are arranged on the surfaces of the ejector rods, when the infant tries to grab the guardrail, the rollers rotate to cause hand slipping, the climbing possibility is further reduced, whether the guardrail is pressed or not is monitored through the pressure sensors of the ejector rods, and the safety of the infant is improved. The first infrared module is combined to detect whether a person is above the top rod, double sensing is achieved, and when the climbing behavior is monitored, the processor controls the audible and visual alarm to give an alarm.

Description

Technical Field

[0001] The present invention relates to the technical field of child protective equipment, and more particularly to a child fall prevention bed with multimodal sensing. Background Art

[0002] Currently, the design and protection technology of children's bed guardrails mainly focus on physical barriers and basic alarm functions, but the following significant problems still exist:

[0003] Existing bed guardrails are mostly vertical or slightly inclined rigid structures. Infants and young children can climb by stepping on the rails with their feet or grasping the tops. The lack of anti-slip design on the guardrail surface makes it difficult to effectively prevent flexible climbing behaviors, resulting in a high risk of falling out of bed. Traditional bed fall prevention devices often rely on a single pressure sensor or infrared module, which is susceptible to environmental interference (such as obstruction by clothing and light changes), leading to misjudgment or missed detection. For example, a pressure sensor alone cannot distinguish between climbing and normal leaning, and infrared detection alone may fail due to obstruction, resulting in delayed protection response.

[0004] The height of existing guardrails is mostly fixed and cannot be dynamically adjusted according to children's growth stage (such as height growth) or usage scenarios (such as nursing operations), resulting in a mismatch between the protection range and actual needs and reducing practicality.

[0005] Most devices rely solely on alarms to alert guardians and lack proactive intervention measures (such as dynamic shaking deterrents or physical buffers). If guardians fail to respond promptly, infants and young children may still climb or fall, making effective protection impossible. Some products attempt to integrate airbag protection, but these products suffer from the following issues: imperfect triggering logic: reliance on a single sensor signal can lead to false or missed explosions (e.g., a brief probe by an infant or young child may be misinterpreted as a fall); complex storage and maintenance: airbags must be manually reset after deployment, are susceptible to aging and damage from long-term exposure, and the replacement process is cumbersome (requiring disassembly of the structure or the assistance of tools).

[0006] Therefore, it is necessary to propose a multimodal sensing child anti-fall bed to solve the above problems. Summary of the Invention

[0007] (1) Technical problems solved

[0008] The purpose of the present invention is to provide a multi-modal sensing anti-fall bed for children in order to solve the problems of climbing hazards in traditional children's bed guardrails, single sensors prone to misjudgment, fixed structure difficult to adjust, passive protection lacking active intervention, airbag application prone to misjudgment and complex maintenance, and interactive experience to be optimized.

[0009] (2) Technical solution

[0010] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0011] A multimodal sensing child fall prevention bed comprises a bed body, a headboard fixedly mounted on one end of the bed body, a footboard fixedly mounted on the other end of the bed body, a control panel and an alarm fixedly connected to the surface of the footboard, the alarm being an audible and visual alarm, a processor mounted inside the footboard, and both the control panel and the alarm being electrically signal-connected to the processor;

[0012] Guardrail mechanisms are provided on both sides of the bed body, and the guardrail mechanisms are tilted inward with an inclination angle of 15 degrees. The guardrail mechanisms include a group of fixed blocks symmetrically fixed on the bed body, the middle part of the fixed block is rotatably connected to a rotating shaft, a bottom rod is fixedly connected between the two rotating shafts, a plurality of linearly distributed telescopic rods are fixedly connected to the surface of the bottom rod, the top of the telescopic rod is fixedly connected to a top rod, a pressure sensor is fixedly connected to the connection between the top rod and the telescopic rod, the surface of the top rod is rotatably connected to a roller, and first infrared modules are symmetrically installed at the edges of both sides of the top of the top rod, and the first infrared module is electrically connected to the processor; the control panel is electrically connected to the electric telescopic rod through the processor.

[0013] Furthermore, a plurality of linearly distributed telescopic rods are fixedly connected to the surface of the bottom rod, one of the telescopic rods is an electric telescopic rod, and the remaining telescopic rods are telescopic structures composed of sleeves and cylinders.

[0014] Furthermore, grooves are provided in the middle of both sides of the bed body, and a vibration mechanism is installed at the bottom end of the groove, and the vibration mechanism is used to control the guardrail mechanism to shake; the vibration mechanism includes an installation box fixedly connected to the bottom end of the groove.

[0015] Furthermore, a variable frequency motor is fixedly connected to the interior of the installation box, and the variable frequency motor is connected to the processor electrical signal. An output gear is fixedly connected to the output shaft of the variable frequency motor, and one end of the output gear is meshedly connected to a speed gear. One side of the speed gear is rotatably connected to the installation box, and an eccentric column is fixedly connected to the edge of the other side of the speed gear. A connecting rod is provided on the outside of the eccentric column, and an opening is provided at the top of the installation box. The top of the connecting rod extends out of the opening and is fixedly connected to the bottom rod. A sliding groove is provided in the middle of the bottom end of the connecting rod, and the connecting rod is slidably connected to the eccentric column through the sliding groove.

[0016] Furthermore, a second infrared module is installed on both side edges of the bed, and an airbag mounting plate is symmetrically provided under the bed. An airbag body is provided on the surface of the airbag mounting plate. The principle of the airbag body is consistent with that of a car airbag, and it can explode and expand instantly upon receiving a command. A conducting port is provided in the middle of the airbag mounting plate, and an airbag controller is installed at the bottom of the airbag body. The airbag controller is located in the conducting port, and the airbag controller is electrically connected to the processor.

[0017] Furthermore, the four corners of the bottom end of the bed body are fixedly connected to bed legs, one side of the bed legs is fixedly connected to a support plate, one side of the support plate is fixedly connected to a slide rail, the bottom of the airbag mounting plate is fixedly connected to a slider, the slider is slidably connected to the slide rail, and the bottom of the slide rail is fixedly connected to a screw mounting seat.

[0018] Furthermore, a bidirectional threaded rod is rotatably connected in the screw mounting seat, an internal threaded block is symmetrically provided in the middle of the bidirectional threaded rod, both sides of the internal threaded block are rotatably connected to a control link, the end of the control link is rotatably connected to the airbag mounting plate through a pin shaft, and one end of the bidirectional threaded rod is fixedly connected to a turntable.

[0019] Furthermore, slots are provided inside both sides of the airbag mounting plate, and both ends of the bottom of the airbag body are fixedly connected with plug blocks, the plug blocks correspond to the slots, a card slot is provided on one side of the plug block, a slide groove is provided on one side of the slot, a spring is fixedly connected inside the slide groove, one end of the spring is fixedly connected to an operating block, and one side of the operating block is fixedly connected to a card block, the card block extends into the slot and adapts to the card slot.

[0020] (3) Beneficial effects

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. In the present invention, the guardrail mechanism is tilted inwards by 15 degrees, which makes it difficult for infants and young children to climb because they lack a foothold for their feet. A rotatable roller is provided on the surface of the top rod. When infants and young children try to grasp it, the roller rotates and causes their hands to slip, further reducing the possibility of climbing.

[0023] 2. This invention uses a pressure sensor on the top bar to monitor whether the guardrail is under pressure. Combined with a first infrared module, it detects whether there is anyone above the top bar, achieving dual sensing. When climbing behavior is detected, the processor controls the sound and light alarm to sound an alarm, prompting the guardian to intervene and reduce the risk of falling out of bed. The mechanical anti-climbing structure is combined with electronic sensing to form an active and passive protection system.

[0024] 3. This invention replaces some telescopic rods with electric telescopic rods. By inputting commands through the control panel, the processor controls the extension and retraction of the electric telescopic rods to achieve guardrail height adjustment to adapt to the height changes of children of different ages or different usage scenarios.

[0025] 4. This invention adds a vibration mechanism. When the sensor detects climbing, it drives the guardrail to swing back and forth, creating a sense of instability and actively deterring infants and young children. The vibration mechanism is linked to the multimodal sensing system and is activated only when abnormal behavior occurs, avoiding false triggering or waste of resources.

[0026] 5. The present invention adds a second infrared module, which is combined with the first infrared module and the pressure sensor to achieve dual detection of "someone above the guardrail + someone outside the guardrail", accurately judging whether part of the infant's body has passed over the guardrail. When there is no signal from the first infrared module and the pressure sensor, and there is still a signal from the second infrared module, it is determined that a fall has occurred and the airbag is triggered. The instantaneous expansion of the airbag can effectively cushion the impact of the fall and reduce the risk of injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a first stereoscopic schematic diagram of the multimodal sensing child anti-fall bed of the present invention;

[0028] Figure 2 This is a schematic diagram of the main view of the child anti-fall bed with multimodal sensing of the present invention;

[0029] Figure 3 This is a second stereoscopic schematic diagram of the multimodal sensing child anti-fall bed of the present invention;

[0030] Figure 4 This is a bottom-up schematic diagram of the child anti-fall bed with multimodal sensing of the present invention;

[0031] Figure 5 It is a three-dimensional schematic diagram of the guardrail mechanism and the vibration mechanism of the present invention;

[0032] Figure 6 is a three-dimensional schematic diagram of the vibration mechanism of the present invention;

[0033] Figure 7 is a cross-sectional schematic diagram of the airbag mounting plate structure of the present invention;

[0034] Figure 8 This is a module schematic diagram of the multimodal sensing child anti-fall control system of the present invention.

[0035] Reference numerals: 1, bed body; 2, headboard; 3, footboard; 4, control panel; 5, alarm; 6, guardrail mechanism; 7, fixing block; 8, rotating shaft; 9, bottom bar; 10, telescopic rod; 11, top bar; 12, roller; 13, first infrared module; 14, groove; 15, vibration mechanism; 16, installation box; 17, frequency conversion motor; 18, output gear; 19, speed change gear; 20, eccentric column; 21, connecting rod; 22, slideway; 23 , bed legs; 24, support plate; 25, slide rail; 26, slider; 27, airbag mounting plate; 28, two-way threaded rod; 29, internal thread block; 30, control link; 31, pin shaft; 32, guide port; 33, airbag body; 34, airbag controller; 35, slot; 36, insert block; 37, card slot; 38, slideway slot; 39, card block; 40, operating block; 41, spring; 42, turntable; 43, screw mounting seat; 44, second infrared module. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Example 1

[0038] Referring to Figures 1, 2, and 8, a multimodal sensing child fall prevention bed includes a bed body 1, a headboard 2 fixedly mounted on one end of the bed body 1, a footboard 3 fixedly mounted on the other end of the bed body 1, a control panel 4 and an alarm 5 fixedly connected to the surface of the footboard 3, the alarm 5 being an audible and visual alarm, a processor mounted inside the footboard 3, and both the control panel 4 and the alarm 5 being electrically connected to the processor;

[0039] A guardrail mechanism 6 is provided on both sides of the bed body 1. The guardrail mechanism 6 is tilted inward with an inclination angle of 15 degrees. The guardrail mechanism 6 includes a group of fixed blocks 7 symmetrically fixed on the bed body 1. The middle part of the fixed block 7 is rotatably connected to a rotating shaft 8. A bottom rod 9 is fixedly connected between the two rotating shafts 8. The surface of the bottom rod 9 is fixedly connected to a plurality of linearly distributed telescopic rods 10. The top of the telescopic rod 10 is fixedly connected to a top rod 11. The connection between the top rod 11 and the telescopic rod 10 is fixedly connected to a pressure sensor. The surface of the top rod 11 is rotatably connected to a roller 12. A first infrared module 13 is symmetrically installed on the edges of both sides of the top of the top rod 11. The first infrared module 13 is electrically connected to the processor; the control panel 4 is electrically connected to the electric telescopic rod through the processor.

[0040] In this embodiment, rollers 12 are provided on the surface of the top bar 11. When an infant climbs the guardrail, the rollers 12 rotate, making it impossible for the infant to hold the top bar 11 with his hands. The guardrail mechanism 6 is tilted 15 degrees, leaving no foothold for the infant's feet. This makes it difficult for the infant to climb, greatly reducing the probability of climbing over the guardrail.

[0041] By setting a first infrared module 13 above the top rod 11, and with the cooperation of the pressure sensor, the first infrared module 13 is used to monitor whether there is a person on the top rod 11, and the pressure sensor monitors whether the top rod 11 is subjected to pressure, indicating that an infant or child is climbing, multimodal perception is achieved, and then the signal is transmitted to the processor, and the processor controls the alarm 5 to emit an audible and visual alarm.

[0042] Example 2

[0043] 1 and 2 , this embodiment is a further optimization based on embodiment 1. Specifically, a plurality of linearly distributed telescopic rods 10 are fixedly connected to the surface of the bottom rod 9 , one of the telescopic rods 10 is an electric telescopic rod, and the remaining telescopic rods 10 are telescopic structures composed of sleeves and cylinders.

[0044] In this embodiment, commands are input to the processor via the control panel 4 , and the processor controls the extension / retraction of the electric telescopic rod, thereby adjusting the height of the guardrail mechanism 6 .

[0045] Example 3

[0046] Please refer to Figures 1, 5, 6 and 8. This embodiment is based on Example 1. Further optimization was carried out on the basis of the above. Specifically, a groove 14 is provided in the middle of both sides of the bed body 1, and a vibration mechanism 15 is installed at the bottom end of the groove 14. The vibration mechanism 15 is used to control the guardrail mechanism 6 to produce shaking; the vibration mechanism 15 includes an installation box 16 fixedly connected to the bottom end of the groove 14, and a frequency conversion motor 17 is fixedly connected to the interior of the installation box 16. The frequency conversion motor 17 is connected to the processor electrical signal, and an output gear 18 is fixedly connected to the output shaft of the frequency conversion motor 17. One end of the output gear 18 is meshed with a speed change gear 19, and one side of the speed change gear 19 is rotatably connected to the installation box 16. An eccentric column 20 is fixedly connected to the edge of the other side of the speed change gear 19, and a connecting rod 21 is provided on the outside of the eccentric column 20. The top of the installation box 16 is provided with an opening, and the top of the connecting rod 21 extends out of the opening and is fixedly connected to the bottom rod 9. A slide groove 22 is provided in the middle of the bottom end of the connecting rod 21, and the connecting rod 21 is slidably connected to the eccentric column 20 through the slide groove 22.

[0047] In this embodiment, when the above-mentioned first infrared module 13 and pressure sensor monitor the data, the processor controls the variable frequency motor 17, and the variable frequency motor 17 drives the speed gear 19 to rotate through the output gear 18, and the speed gear 19 drives the eccentric column 20 to make a circular motion. Since the top end of the connecting rod 21 is fixedly connected to the bottom rod 9, the eccentric column 20 drives the connecting rod 21 and then drives the bottom rod 9 to swing back and forth along the fixed block 7, thereby causing the guardrail mechanism 6 to swing back and forth to prevent infants and young children from climbing.

[0048] Example 4

[0049] Please refer to Figures 1, 2 and 8. This embodiment is further optimized based on Example 3. Specifically, a second infrared module 44 is installed at the edges of both sides of the bed 1, and an airbag mounting plate 27 is symmetrically provided below the bed 1. An airbag body 33 is provided on the surface of the airbag mounting plate 27. The principle of the airbag body 33 is consistent with that of a car airbag, and it can explode and expand instantly upon receiving a command. A conducting port 32 is provided in the middle of the airbag mounting plate 27, and an airbag controller 34 is installed at the bottom of the airbag body 33. The airbag controller 34 is located in the conducting port 32, and the airbag controller 34 is connected to the processor electrical signal.

[0050] In this embodiment, the first infrared module 13 and the second infrared module 44 are used for simultaneous detection. When the first infrared module 13 and the second infrared module 44 detect a person at the same time, the first infrared module 13 indicates that there is a person above the guardrail mechanism 6, and the second infrared module 44 indicates that there is a person outside the guardrail mechanism 6, which means that part of the infant's body has passed the guardrail mechanism 6. At this time, the processor controls the airbag controller 34 to enter the preparation program; if the first infrared module 13 and the pressure sensor module have no targets at the same time, and the second infrared module 44 still has a target, it means that the entire body of the infant has passed the guardrail mechanism 6, which means that the infant has started to fall. At this time, the processor controls the airbag controller 34 to open the airbag body 33, and the airbag body 33 instantly explodes and expands, which can play a cushioning role when the infant falls, preventing the infant from falling and getting injured.

[0051] Example 5

[0052] Please refer to Figures 1-4. This embodiment is further optimized on the basis of Example 4. Specifically, the four corners of the bottom end of the bed body 1 are fixedly connected with bed legs 23, one side of the bed leg 23 is fixedly connected with a support plate 24, one side of the support plate 24 is fixedly connected with a slide rail 25, the bottom of the airbag mounting plate 27 is fixedly connected with a slider 26, the slider 26 is slidably connected to the slide rail 25, the bottom of the slide rail 25 is fixedly connected with a screw mounting seat 43, a bidirectional threaded rod 28 is rotatably connected in the screw mounting seat 43, the middle part of the bidirectional threaded rod 28 is symmetrically provided with an internal threaded block 29, both sides of the internal threaded block 29 are rotatably connected with a control link 30, the end of the control link 30 is rotatably connected to the airbag mounting plate 27 through a pin shaft 31, and one end of the bidirectional threaded rod 28 is fixedly connected to a turntable 42.

[0053] In this embodiment, by rotating the turntable 42, the turntable 42 drives the bidirectional threaded rod 28 to rotate, and the bidirectional threaded rod 28 drives the two internal threaded blocks 29 to move inward or outward at the same time, thereby driving the control link 30 to pull the airbag mounting plate 27 to move. The airbag mounting plate 27 can realize telescopic movement along the slide rail 25 under the action of the slider 26, thereby realizing the storage of the airbag mounting plate 27. When the airbag is not in use, the airbag body 33 can be stored under the bed 1 to avoid the airbag body 33 occupying space.

[0054] Example 6

[0055] Please refer to Figure 7. This embodiment is further optimized based on Example 5. Specifically, slots 35 are provided on both sides of the airbag mounting plate 27, and both ends of the bottom of the airbag body 33 are fixedly connected with plug blocks 36. The plug blocks 36 correspond to the slots 35. A card slot 37 is provided on one side of the plug block 36, and a slide groove 38 is provided on one side of the slot 35. A spring 41 is fixedly connected inside the slide groove 38, and one end of the spring 41 is fixedly connected to the operating block 40. A card block 39 is fixedly connected to one side of the operating block 40. The card block 39 extends into the slot 35 and adapts to the card slot 37.

[0056] In this embodiment, since the principle of the airbag body 33 is consistent with that of a car airbag, when an infant falls, it explodes and expands instantly, and the airbag needs to be replaced. By pulling the operating block 40 outward, the operating block 40 drives the card block 39 away from the card slot 37. At this time, the insertion block 36 loses its restraint, and the airbag body 33 can be removed from the airbag mounting plate 27, achieving the effect of convenient replacement and installation.

[0057] In summary, the present invention has a guardrail mechanism 6 that is tilted inward by 15 degrees, making it difficult for infants and young children to climb due to a lack of footholds. A rotatable roller 12 is provided on the surface of the top rod 11. When an infant or young child tries to grasp the guardrail, the roller 12 rotates, causing the hand to slip, further reducing the possibility of climbing. The pressure sensor on the top rod 11 monitors whether the guardrail is under pressure, and the first infrared module 13 detects whether there is anyone above the top rod, achieving dual sensing. When climbing behavior is detected, the processor controls the sound and light alarm 5 to sound an alarm, prompting the guardian to intervene and reducing the risk of falling out of bed. The mechanical anti-climbing structure (inclined guardrail, roller 12) is combined with electronic sensing (pressure sensor, infrared module) to form an active + passive protection system.

[0058] Part of the telescopic rod 10 is replaced with an electric telescopic rod. The processor controls the extension and retraction of the electric telescopic rod through the control panel 4. This allows for height adjustment of the guardrail to accommodate the height changes of children of different ages or the needs of different usage scenarios (e.g., lowering the guardrail when caring for a baby). This is achieved through electrical signal control without manual adjustment of the physical structure, thus improving the user experience.

[0059] A vibration mechanism 15 (variable frequency motor 17 + gear + eccentric column 20) is added. When the sensor detects climbing, it drives the guardrail to swing back and forth, creating a sense of instability and actively deterring infants and young children. The vibration mechanism 15 is linked to the multimodal sensing system and is activated only when abnormal behavior occurs, avoiding false triggering or waste of resources.

[0060] The addition of a second infrared module 44, combined with the first infrared module 13 and the pressure sensor, enables dual detection of "persons above the guardrail and outside the guardrail," accurately determining whether an infant or child has partially passed over the guardrail. When there is no signal from the first infrared module 13 and the pressure sensor (the infant or child is completely out of the guardrail), and there is still a signal from the second infrared module 44, a fall is determined to have occurred and the airbag is triggered. Drawing on the principle of automotive airbags, the instantaneous expansion of the airbag can effectively cushion the impact of a fall and reduce the risk of injury. When an abnormality is detected, the airbag controller 34 first enters the preparation process and quickly activates after a fall is confirmed, reducing response delays.

[0061] The design of the bidirectional threaded rod 28, the slide rail 25 and the control link 30 enables the telescopic movement of the airbag mounting plate 27. It is unfolded when in use and stored under the bed when not in use, thus preventing the airbag from being exposed and occupying space for a long time and keeping the area around the bed 1 clean and tidy. The airbag mounting plate can be controlled to move by turning the turntable 42 without the need for complicated tools or operating steps. The slider 26 and the slide rail 25 cooperate to ensure a smooth telescopic process, and the screw drive ensures uniform force, thereby extending the life of the equipment.

[0062] An insert block 36 is provided at the bottom of the airbag body 33, which matches the slot 35 of the airbag mounting plate 27. Through the card block 39 and the slide groove 38, the operating block 40 can be pushed outward to release the lock, thereby realizing the rapid disassembly and installation of the airbag, facilitating the replacement of the inflated airbag, and can be completed without tools. Ordinary users can also operate it easily, lowering the maintenance threshold. The card block 39 driven by the spring 41 is designed to ensure that the airbag is firmly fixed to avoid accidental triggering or falling off due to looseness.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention should also be included in the scope of protection of the present invention.

Claims

1. A multi-modal sensing child anti-fall bed, comprising a bed body (1), one end of the bed body (1) being fixedly mounted with a headboard baffle (2), and the other end of the bed body (1) being fixedly mounted with a footboard baffle (3), characterized in that: A control panel (4) and an alarm (5) are fixedly connected to the surface of the bed end baffle (3), wherein the alarm (5) is an audible and visual alarm, and a processor is installed inside the bed end baffle (3); A guardrail mechanism (6) is provided on both sides of the bed body (1). The guardrail mechanism (6) is tilted inwardly with an inclination angle of 15 degrees. The guardrail mechanism (6) includes a group of fixed blocks (7) symmetrically fixed on the bed body (1). The middle part of the fixed block (7) is rotatably connected to a rotating shaft (8). A bottom rod (9) is fixedly connected between the two rotating shafts (8). The surface of the bottom rod (9) is fixedly connected to a plurality of linearly distributed telescopic rods (10). The top of the telescopic rod (10) is fixedly connected to a top rod (11). A pressure sensor is fixedly connected to the connection between the top rod (11) and the telescopic rod (10). A roller (12) is rotatably connected to the surface of the top rod (11). A first infrared module (13) is symmetrically installed at the edges of both sides of the top of the top rod (11). The first infrared module (13) is connected to the processor electrical signal.

2. The multimodal sensing child anti-fall bed according to claim 1, characterized in that: A plurality of linearly distributed telescopic rods (10) are fixedly connected to the surface of the bottom rod (9), one of the telescopic rods (10) being an electric telescopic rod, and the remaining telescopic rods (10) being telescopic structures formed by sleeves and cylinders.

3. The multimodal sensing child anti-fall bed according to claim 1, characterized in that: A groove (14) is provided in the middle of both sides of the bed body (1), and a vibration mechanism (15) is installed at the bottom end of the groove (14). The vibration mechanism (15) is used to control the guardrail mechanism (6) to produce shaking; the vibration mechanism (15) includes a mounting box (16) fixedly connected to the bottom end of the groove (14).

4. The multimodal sensing child anti-fall bed according to claim 3, characterized in that: The interior of the installation box (16) is fixedly connected to a variable frequency motor (17), and the variable frequency motor (17) is connected to the processor electrical signal. An output gear (18) is fixedly connected to the output shaft of the variable frequency motor (17), and one end of the output gear (18) is meshedly connected to a speed change gear (19). One side of the speed change gear (19) is rotationally connected to the installation box (16), and an eccentric column (20) is fixedly connected to the edge of the other side of the speed change gear (19). A connecting rod (21) is provided on the outside of the eccentric column (20). The top end of the installation box (16) is provided with an opening, and the top end of the connecting rod (21) extends out of the opening and is fixedly connected to the bottom rod (9). A sliding groove (22) is provided in the middle of the bottom end of the connecting rod (21), and the connecting rod (21) is slidably connected to the eccentric column (20) through the sliding groove (22).

5. The multimodal sensing child anti-fall bed according to claim 1, characterized in that: A second infrared module (44) is installed at both side edges of the bed (1), an airbag mounting plate (27) is symmetrically provided below the bed (1), an airbag body (33) is provided on the surface of the airbag mounting plate (27), the principle of the airbag body (33) is consistent with that of an automobile airbag, and it can explode and expand instantly upon receiving a command, a conducting port (32) is opened in the middle of the airbag mounting plate (27), an airbag controller (34) is installed at the bottom of the airbag body (33), the airbag controller (34) is located in the conducting port (32), and the airbag controller (34) is connected to the processor electrical signal.

6. The multimodal sensing child anti-fall bed according to claim 5, characterized in that: The four corners of the bottom end of the bed body (1) are fixedly connected to bed legs (23), one side of the bed legs (23) is fixedly connected to a support plate (24), one side of the support plate (24) is fixedly connected to a slide rail (25), the bottom of the airbag mounting plate (27) is fixedly connected to a slider (26), the slider (26) is slidably connected to the slide rail (25), and the bottom of the slide rail (25) is fixedly connected to a screw mounting seat (43).

7. The multimodal sensing child anti-fall bed according to claim 6, characterized in that: A bidirectional threaded rod (28) is rotatably connected to the screw mounting seat (43), an internal threaded block (29) is symmetrically provided in the middle of the bidirectional threaded rod (28), and control connecting rods (30) are rotatably connected to both sides of the internal threaded block (29). The end of the control connecting rod (30) is rotatably connected to the airbag mounting plate (27) through a pin (31), and one end of the bidirectional threaded rod (28) is fixedly connected to a turntable (42).

8. The multimodal sensing child anti-fall bed according to claim 5, characterized in that: Slots (35) are provided inside both sides of the airbag mounting plate (27), and both ends of the bottom of the airbag body (33) are fixedly connected with plug blocks (36), and the plug blocks (36) correspond to the slots (35). A card slot (37) is provided on one side of the plug block (36), and a slide groove (38) is provided on one side of the slot (35). A spring (41) is fixedly connected inside the slide groove (38), and one end of the spring (41) is fixedly connected to an operating block (40), and one side of the operating block (40) is fixedly connected to a card block (39), and the card block (39) extends into the slot (35) and is adapted to the card slot (37).

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