CN108392338B - Feedback adjusting bed based on terahertz wave detection - Google Patents

Feedback adjusting bed based on terahertz wave detection Download PDF

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Publication number
CN108392338B
CN108392338B CN201810308307.6A CN201810308307A CN108392338B CN 108392338 B CN108392338 B CN 108392338B CN 201810308307 A CN201810308307 A CN 201810308307A CN 108392338 B CN108392338 B CN 108392338B
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terahertz wave
bed
mechanical
wave detection
bed body
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CN108392338A (en
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马建立
叶玉梅
江涛
牛文明
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Shenzhen Sunshine Laser & Electronics Technology Co ltd
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Shenzhen Sunshine Laser & Electronics Technology Co ltd
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Abstract

The utility model provides a feedback regulation bed based on terahertz wave detects, including the bed body, terahertz wave radiation source, terahertz wave detection device, mechanical motion device, pressure detection device and controlling means, mechanical motion device includes a plurality of mechanical microcell, can independently do along the concertina movement of perpendicular to bed body surface, pressure detection device detects the pressure variation on bed body surface and gives controlling means with pressure variation signal, after detecting that someone begins to use bed body or the appearance of sleeping of people changes, trigger terahertz wave radiation source and terahertz wave detection device work, carry out terahertz wave imaging to bed body and human body, controlling means still judges the predetermined position of human body and is located for the bed body according to the imaging condition, adjust the flexible volume of mechanical microcell in the corresponding region, so that the human body obtains effective and balanced support. The bed has high comfort, and can also achieve effects of shaping body, preventing spinal disease and adjuvant treatment.

Description

Feedback adjusting bed based on terahertz wave detection
Technical Field
The invention relates to a bed, in particular to a feedback regulation bed based on terahertz (THz) wave detection.
Background
The comfort level of the bed directly influences the sleeping quality, if the bed is too soft, the bed is greatly deformed because the buttocks and shoulders of the human body are protruded more; if the bed is too hard, the bed cannot be changed along with the change of the human body curve, and no matter the bed is too soft or too hard, all parts of the body cannot be balanced and supported, so that the human spine can be stressed to different degrees when lying in bed, and comfortable rest and deep sleep of the human are not utilized; meanwhile, the spine of the human body has 4 natural physiological curvatures: cervical, thoracic, lumbar and sacral curves, wherein the cervical, lumbar curves are convex forward and the thoracic and sacral curves are concave backward. Neither too soft nor too stiff a bed can support the spine well, resulting in the spine being in an unnatural curvature without the use of protection (healthy) and adjuvant therapy (ill) of the spine.
However, the degree of softness and hardness of the bed varies from person to person, and the body shape, the weight of each part of the body and the physiological curvature of different people are different. The ergonomically designed bed is an effective means for properly supporting each part of the body in real time and in a balanced manner according to the body curves and weights of different people, and also for preventing and assisting in the treatment of certain spinal pathologies.
Patent document CN 101484047B discloses a mattress which can adjust the air quantity of an air chamber layer by adjusting devices, ensure that a human body lying on the mattress is well and uniformly supported, and adopts a motion detection device to detect whether the sleeping posture of the human body is changed or not, wherein the motion detection device comprises an infrared detector or a pressure detection device. However, the infrared detector is used for detecting according to the infrared rays with different intensities emitted by each part of the human body, on one hand, the human body is used as a higher constant temperature organism, the temperature difference change of each part is small, the detection resolution is low, on the other hand, the human body always wears the quilt during sleeping, the infrared ray penetrability is limited, and the accuracy of detection signals is seriously influenced. In addition, the pressure detection device can detect whether the sleeping gesture of the human body changes when the sleeping gesture of the human body is relatively static, but the position of each part of the human body cannot be accurately judged.
Terahertz (THz), which is usually an electromagnetic wave with a frequency of 0.1-10 THz and a wavelength of 0.03-3 mm, is an emerging technology developed along with ultrafast laser technology in the last two decades, and has many excellent characteristics. Terahertz waves have extremely low photon energy, are far lower than visible light and X rays (only one thousandth of visible light and one thousandth of X rays), do not cause photoionization, and have little harm to human bodies. Mainly, terahertz waves have strong penetrating power on a plurality of opaque dielectric materials such as clothes, leather, plastics, semiconductor wafers and the like, can detect the internal characteristics of materials which cannot be detected by visible light or infrared light, and have the imaging precision of centimeter level, so that the terahertz waves are widely applied to the detection imaging field.
Disclosure of Invention
The invention mainly aims to provide a feedback regulation bed based on terahertz wave detection aiming at the defects of the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a feedback regulation bed based on terahertz wave detection, includes the bed body, terahertz wave radiation source, terahertz wave detection device, mechanical motion device, pressure detection device and controlling means, mechanical motion device includes along the plane direction of the bed body is a plurality of mechanical micro-unit that the array distributes in the bed body, every mechanical micro-unit can independently do along perpendicular to the flexible volume adjustable flexible motion of bed body surface under controlling means's control, pressure detection device is used for detecting the pressure variation on bed body surface and sends pressure variation signal to controlling means, controlling means is used for judging whether there is the user who comes to use according to pressure variation signal the bed body and user's sleeping position changes, triggers after judging to be terahertz wave radiation source with terahertz wave detection device work to the bed body and user's human body, controlling means still judges according to the imaging condition that the predetermined position of human body is relative to the bed body is located and the corresponding position of predetermined position and the basis of the corresponding position of micro-unit and the flexible volume of the human body and the corresponding position of the corresponding micro-unit is adjusted to the mechanical equilibrium volume in the human body region.
Further:
The pressure detection device is arranged on the mechanical micro unit or at other positions of the bed body where the pressure change can be detected.
After the expansion and contraction amount of each mechanical micro unit is adjusted, the terahertz wave radiation source and the terahertz wave detection device stop working until the next trigger is received.
The predetermined portion of the human body includes one or more of a head, neck, shoulder, waist, buttocks, legs, hands and feet.
The imaging is imaging after detecting that the pressure change signal is stopped.
The device also comprises a separation groove structure, wherein the separation groove structure comprises a plurality of separation grooves which are distributed in an array manner and are arranged between a top surface layer and a bottom surface layer of the bed body, and each separation groove is internally provided with one mechanical micro unit.
The mechanical microcell comprises a columnar microcell and a flexible supporting structure arranged on the top of the columnar microcell, preferably, the pressure detection device is arranged between the columnar microcell and the flexible supporting structure, and preferably, the flexible supporting structure is made of rubber or latex.
The mechanical microcell is driven by a magnetic field, a motor, pneumatic or hydraulic pressure.
The mechanical micro-unit comprises a coil assembly, a permanent magnet is arranged in the bed body, the coil assembly comprises a coil and an iron core, the coil enables the iron core to generate magnetism when being electrified under the control of the control device, the iron core generates telescopic movement under the action of the magnetic field of the permanent magnet, and preferably, the top end of the iron core is provided with a flexible supporting structure.
The mechanical micro-unit comprises a cylinder body, a servo motor, a ball screw and a guide block, wherein the servo motor, the ball screw and the guide block are arranged in the cylinder body, an integrated solid filler is filled in the cylinder body, the servo motor drives the guide block to move through the ball screw, the guide block drives the solid filler to vertically reciprocate relative to the cylinder body, and preferably, a flexible supporting structure is arranged at the top end of the solid filler.
The invention has the following beneficial effects:
According to the invention, whether a human body starts to use the bed or not and whether the sleeping posture of the human body changes is detected by the pressure detection device, the terahertz wave radiation source and the terahertz wave detection device are utilized to observe the sleeping posture and the body position of the human body by the terahertz waves, the expansion and contraction amount of the corresponding mechanical micro-units of the mechanical movement device is automatically controlled and adjusted according to the body position change of the human body, the concave-convex shape of the bed surface is adaptively changed, a proper, reasonable and balanced supporting effect is played on the main body part of the human body, and the comfort of the bed is effectively improved.
Specifically, once a user touches the bed surface, the pressure detection device senses that the pressure changes, the terahertz wave radiation source and the terahertz wave detection device are triggered to start working, the bed body and the human body are imaged, the control device (or an additionally arranged data processing device) judges the specific positions of the head, neck, shoulders, waist, buttocks, legs, hands and feet of the human body according to the specific positions of the bed body, the expansion and contraction amount required by each mechanical micro-unit is calculated according to a predefined relation, the control device drives the mechanical micro-units in the region where the corresponding parts of the human body are located to start moving, the human body is balanced and supported after the mechanical micro-units are adjusted in place, and the terahertz radiation source and the detection device stop working. If the sleeping posture of the human body is changed, the pressure born by the corresponding micro unit is also changed, the pressure detection device triggers the terahertz wave radiation source and the detection device to start working again, the human body is imaged again, the positions of all parts of the human body are judged, the expansion and contraction amount of the micro unit is adjusted, and the human body is guaranteed to be supported effectively and evenly again.
Therefore, the invention can reliably detect the sleeping postures of the human body of different people to judge the shape of the human body and the position of the main parts, such as the position characteristics of the bed body where the head, the neck, the shoulders, the waist, the buttocks, the legs and the hands and feet are positioned, automatically adjust the shape of the bed body according to the body curve and the weight of the human body, ensure that the bed body supports the main parts of the human body in real time, uniformly and effectively, increase the comfort of the bed, promote deep sleep and prevent and assist in treating certain diseases.
The invention adopts the terahertz wave radiation source and the detection device to image the bed and the human body, and compared with microwave imaging, X-ray imaging, CT detection and infrared detectors, THz wave is harmless to the human body, has strong penetrating power and sensitive and accurate imaging.
The terahertz wave detection-based feedback regulation bed can independently control the movement of each mechanical micro unit, and the expansion and contraction amount of the micro units can be adjusted in real time, so that a user can effectively support main parts of the body no matter lying or after changing sleeping positions. When a user sleeps on the bed made of the structure, a natural human body curve can appear, the human body (spine) is kept in a normal physiological radian, and a safe, comfortable and healthy sleeping environment is created. Because each micro unit can independently do telescopic movement, the bed is determined to be suitable for people with different body types and different ages, and is also suitable for spinal pathologic persons, or patients needing body correction, or other long-term bedridden patients.
In conclusion, the feedback adjusting bed provided by the invention not only can improve the comfort brought to people in use, but also can play a role in preventing spinal lesions and shaping bodies for healthy people and can play an auxiliary treatment role for patients.
Drawings
FIG. 1 is a schematic diagram of the operation of a feedback conditioning bed based on terahertz wave detection according to an embodiment of the present invention;
FIG. 2 is a distribution diagram of a micro-cell array according to an embodiment of the present invention;
FIG. 3 is a diagram of a micro-cell structure in an embodiment of the invention;
FIG. 4 is a schematic view of a separation tank according to an embodiment of the invention
FIG. 5 is a magnetostrictive microcell in an embodiment of the present invention;
FIG. 6 is a screw micro-unit adjustment device in an embodiment of the invention;
FIG. 7 is a schematic view showing the relative position of the human body and the bed surface when the human body just contacts the bed surface during the use of the embodiment of the invention;
Fig. 8 is a schematic diagram showing the relative position change between the human body and the bed body when the bed body is used for carrying out balance support on the human body.
Detailed Description
The following describes embodiments of the present invention in detail. It should be emphasized that the following description is merely exemplary in nature and is in no way intended to limit the scope of the invention or its applications.
Referring to fig. 1,2, 7 and 8, in one embodiment, a feedback adjusting bed based on terahertz wave detection includes a bed body 1, a terahertz wave radiation source 2, a terahertz wave detection device 3, a mechanical movement device 4, a pressure detection device 7 and a control device (not shown), the mechanical movement device 4 includes a plurality of mechanical micro units 5 distributed in the bed body 1 in an array along a plane direction of the bed body 1, each of the mechanical micro units 5 can independently perform an adjustable telescopic movement along a telescopic amount perpendicular to a surface of the bed body 1 under the control of the control device, the pressure detection device 7 is used for detecting a pressure change on the surface of the bed body 1 and transmitting a pressure change signal to the control device, the control device is used for judging whether a new user starts to use the bed body 1 and whether a sleeping posture of the user changes according to the pressure change signal, after judging that the user is in the plane direction of the bed body 1, the terahertz wave radiation source 2 and the mechanical micro units 3 are triggered, the telescopic movement of the mechanical micro units can be adjusted along a telescopic amount adjustable along a telescopic amount perpendicular to the surface of the bed body 1, the pressure detection device 7 is used for detecting a pressure change signal and transmitting the pressure change signal to the control device, and the pressure change signal is used for judging whether the user starts to use the bed body 1 and a sleeping posture of the user starts to change according to the user, and the sleeping posture of the user starts to change, and the user is triggered to a predetermined position of the user, and the user is a predetermined position, and the user is corresponding to a predetermined position and the human body position is imaged by the human body.
In a preferred embodiment, the predetermined portion of the human body includes one or more of a head, neck, shoulder, waist, buttocks, legs, and hands and feet.
In a preferred embodiment, the imaging is imaging after detecting that the pressure change signal has ceased.
In a preferred embodiment, after the expansion and contraction amount of each mechanical micro-unit 5 is adjusted, the terahertz wave radiation source 2 and the terahertz wave detection device 3 stop working until the next trigger is received.
Referring to fig. 3, in a preferred embodiment, the pressure detection means 7 are provided on the mechanical microcell 5. In other embodiments, the pressure detecting device 7 may be disposed at other positions on the bed 1 where a pressure change is detected.
Referring to fig. 3, in a preferred embodiment, the mechanical microcell comprises a columnar microcell 6 and a flexible support structure 8 disposed on top of the columnar microcell 6 to enhance comfort to the human body. The material of the flexible support structure 8 may be, but is not limited to, rubber or latex.
Referring to fig. 3, in a more preferred embodiment, the pressure detection means 7 are arranged between the columnar micro-element 6 and the flexible support structure 8.
Referring to fig. 4, in a preferred embodiment, the feedback conditioning bed based on terahertz wave detection further includes a separation tank structure 9, where the separation tank structure 9 includes a plurality of separation tanks 10 disposed in an array arrangement between a top surface layer and a bottom surface layer of the bed body 1, and one mechanical micro unit 5 is disposed in each separation tank 10. The dividing groove is preferably of a rigid material. The size of the separation channel may depend on the structure and size of the mechanical microcell 5.
In different embodiments, the mechanical microcell 5 may be driven by magnetic fields, motors, pneumatic or hydraulic pressure, etc.
In different embodiments, the mechanical microcell 5 may have a columnar structure having various cross-sections of a circle, an ellipse, or a polygon (e.g., square, trapezoid, etc.). The number of mechanical microcells 5 may depend on the size of the bed.
Referring to fig. 5, in a preferred embodiment, the mechanical micro-unit includes a coil assembly, a permanent magnet 11 is disposed in the bed body, the coil assembly includes a coil 12 and an iron core 13, the coil 12 makes the iron core 13 generate magnetism when energized under the control of the control device, and the iron core 13 generates the telescopic motion under the action of the magnetic field of the permanent magnet 11. More preferably, the top end of the core 13 is provided with a flexible support structure 8.
Referring to fig. 6, in another preferred embodiment, the mechanical micro-unit 5 includes a cylinder 14, a servo motor 15, a ball screw 17 and a guide block 16, where the servo motor 15, the ball screw 17 and the guide block 16 are disposed in the cylinder 14, an integrally formed solid filler 18 is filled in the cylinder 14, the servo motor 15 drives the guide block 16 to move through the ball screw 17, and the guide block 16 drives the solid filler 18 to perform a vertically reciprocating telescopic motion relative to the cylinder 14. More preferably, the top end of the solid filling 18 is provided with a flexible support structure 8.
In some embodiments, the feedback adjustment bed based on terahertz wave detection may further include a measurement and feedback device (not shown) for data measurement and signal transmission of the mechanical movement device, so that the control device can precisely control the mechanical movement device.
In some embodiments, the feedback-regulating bed based on terahertz wave detection may further include a frame of the bed, a supporting device, a stabilized power supply, a power supply device, and other auxiliary devices (not shown).
In some embodiments, the feedback conditioning bed based on terahertz wave detection may further include an additional data processing device (not shown) for including calculation of the amount of expansion and contraction of the mechanical micro-unit corresponding to the main part of the human body. In other embodiments, this function may also be implemented by the control device itself, i.e. without additional data processing means.
In various embodiments, the control device may employ, but is not limited to, a programmable controller.
In some embodiments, once a user touches the bed surface, the pressure detection device senses that the pressure changes, triggers the terahertz wave radiation source and the terahertz wave detection device to start working, images the bed body and the human body, the data processing system judges the specific positions of the head, the neck, the shoulders, the waist, the buttocks, the legs and the bed body where the hands and the feet are located, calculates the required expansion and contraction amount of each micro unit, the motion control device drives the mechanical micro unit in the area to start moving, the human body is balanced and supported after the micro units are adjusted in place, and the terahertz radiation source and the detection device stop working. If the sleeping posture of the human body is changed, the pressure born by the corresponding micro unit is also changed, the pressure detection device triggers the terahertz wave radiation source and the detection device to start working again, the human body is imaged again, the positions of all parts of the human body are judged, the expansion and contraction amount of the micro unit is adjusted, and the human body is guaranteed to be supported effectively and evenly again.
In one embodiment, as shown in fig. 5, a permanent magnet is placed on the bottom layer of the bed, the N pole of the permanent magnet faces upwards, the micro unit adopts a combined structure of a coil and an iron core, the coil is wound on the micro unit, when direct current is supplied to the coil on the micro unit, the micro unit generates magnetism, and the N pole of the permanent magnet faces downwards. According to the principle of homopolar repulsion, the permanent magnet and the micro unit repel each other, and the repulsive force born by the micro unit can be controlled by adjusting the direct current electric quantity so as to achieve the purpose that the micro unit stretches back and forth in the separation groove.
In another embodiment, shown in fig. 6, the microcell is fixed to the bottom layer of the bed, and the structure includes a servo motor, a ball screw, a guide block, and solid fillers and rubber mounted on the guide block. The motor drives the screw rod to rotate and drives the guide block, the solid filler and the rubber to do vertical reciprocating motion. Wherein the cylinder body in the micro unit is as high as the separation groove shown in fig. 4, and before the body of the user contacts the bed surface, the motor is not electrified, and the expansion and contraction amount of the micro unit is zero. When a human body contacts the bed surface, the pressure detection device arranged in the bed body detects the pressure signal change and starts to trigger the terahertz wave radiation device and the terahertz wave detection device to work, and then the motor starts to work to control the vertical upward movement amount of the corresponding micro-unit so as to effectively support the human body.
As shown in fig. 7, each microcell in the control bed is subjected to a maximum repulsive force in a rigid state of being fully sprung up before the user's body is fully contacted with the bed surface. A step of
When the pressure detection device detects the pressure change, after a user is calm, the pressure detection device triggers the terahertz wave radiation source to start working, the terahertz wave radiation body and the bed body are emitted, the terahertz wave detector detects imaging, the positions of the head, the neck, the shoulders, the waist, the buttocks, the legs and the like of the body in the bed body are judged, and the rebound quantity of each micro unit corresponding to the body part is calculated by the system. The mechanical motion control system then drives each of the microcells in accordance with the amount of recoil until each of the microcells moves in place, providing better support for the human body, as shown in fig. 8. In addition, after the sleeping posture of the human body changes, the pressure detection device detects the signal change and triggers the terahertz wave radiation source and the detection device to start working, the human body is imaged again, the positions of all parts of the human body at the moment are judged, the expansion and contraction amount of the infinitesimal units is readjusted, and the human body is guaranteed to be effectively and evenly supported again.
The foregoing is a further detailed description of the invention in connection with specific/preferred embodiments, and it is not intended that the invention be limited to such description. It will be apparent to those skilled in the art that several alternatives or modifications can be made to the described embodiments without departing from the spirit of the invention, and these alternatives or modifications should be considered to be within the scope of the invention.

Claims (10)

1. The feedback regulation bed based on terahertz wave detection is characterized by comprising a bed body, a terahertz wave radiation source, a terahertz wave detection device, a mechanical movement device, a pressure detection device and a control device, wherein the mechanical movement device comprises a plurality of mechanical micro units which are distributed in the bed body in an array manner along the plane direction of the bed body, each mechanical micro unit can independently do telescopic movement which is adjustable along the telescopic amount vertical to the surface of the bed body under the control of the control device, the pressure detection device is used for detecting the pressure change of the surface of the bed body and sending a pressure change signal to the control device, the control device is used for judging whether a new user starts to use the bed body and whether the sleeping posture of the user changes according to the pressure change signal, and after the operation of the terahertz wave radiation source and the terahertz wave detection device is judged to be triggered, the terahertz wave imaging is carried out on the bed body and the human body of the user, the control device also judges the position of the preset part of the human body relative to the bed body according to the imaging condition, and adjusts the stretching amount of the mechanical micro-unit in the corresponding area based on the preset relation between the position of the preset part of the human body and the stretching amount of the mechanical micro-unit in the corresponding area, so that the human body is effectively and uniformly supported, and after the stretching amount of each mechanical micro-unit is adjusted, the terahertz wave radiation source and the terahertz wave detection device stop operating until the next triggering is carried out.
2. The terahertz wave detection-based feedback conditioning bed according to claim 1, wherein the pressure detection device is provided on the mechanical micro-unit or at another position of the bed body where a pressure change can be detected.
3. The terahertz wave detection-based feedback conditioning bed according to claim 1, wherein the predetermined portion of the human body includes one or more of a head, a neck, a shoulder, a waist, a hip, a leg, and hands and feet.
4. The terahertz wave detection-based feedback conditioning bed according to claim 1, wherein the imaging is imaging after detecting that the pressure change signal has stopped.
5. The terahertz wave detection-based feedback and regulation bed of claim 1 further comprising a separation tank structure comprising a plurality of separation tanks arranged in an array arrangement between a top surface layer and a bottom surface layer of the bed body, one of the mechanical microcells being disposed in each separation tank.
6. The terahertz wave detection-based feedback conditioning bed according to any one of claims 1 to 5, wherein the mechanical microcell comprises a columnar microcell and a flexible support structure disposed on top of the columnar microcell.
7. The terahertz wave detection-based feedback and adjustment bed according to claim 6, wherein the pressure detection device is disposed between the columnar micro element and the flexible support structure, and the flexible support structure is made of rubber or latex.
8. The feedback conditioning bed based on terahertz wave detection according to any one of claims 1 to 5, characterized in that the mechanical microcell is driven by a magnetic field, an electric motor, air pressure or hydraulic pressure.
9. The terahertz wave detection-based feedback and adjustment bed according to any one of claims 1 to 5, wherein the mechanical micro unit comprises a coil assembly, a permanent magnet is arranged in the bed body, the coil assembly comprises a coil and an iron core, the coil makes the iron core generate magnetism when being electrified under the control of the control device, the iron core generates the telescopic movement under the action of the magnetic field of the permanent magnet, and the top end of the iron core is provided with a flexible supporting structure.
10. The terahertz wave detection-based feedback and adjustment bed according to any one of claims 1 to 5, wherein the mechanical micro unit comprises a cylinder, a servo motor, a ball screw and a guide block, the servo motor, the ball screw and the guide block are arranged in the cylinder, an integrally formed solid filler is filled in the cylinder, the servo motor drives the guide block to move through the ball screw, the guide block drives the solid filler to vertically reciprocate relative to the cylinder, and a flexible supporting structure is arranged at the top end of the solid filler.
CN201810308307.6A 2018-04-08 Feedback adjusting bed based on terahertz wave detection Active CN108392338B (en)

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Application Number Priority Date Filing Date Title
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CN108392338B true CN108392338B (en) 2024-07-05

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Citations (5)

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Publication number Priority date Publication date Assignee Title
CN2614378Y (en) * 2003-03-07 2004-05-05 吴飞 Energy-saving electromagnetic switch
CN101889928A (en) * 2010-07-27 2010-11-24 北京理工大学 Head gesture recognition technology-based wheelchair control method
CN105380762A (en) * 2014-09-05 2016-03-09 深圳市格兰莫尔寝室用品有限公司 Automatically-regulated bed and regulation method thereof
CN105758865A (en) * 2016-04-26 2016-07-13 河南工业大学 Method for detecting foreign matter in grain packing material based on terahertz waves and detecting system
CN208910759U (en) * 2018-04-08 2019-05-31 深圳光韵达光电科技股份有限公司 Feedback regulation bed based on THz wave detection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2614378Y (en) * 2003-03-07 2004-05-05 吴飞 Energy-saving electromagnetic switch
CN101889928A (en) * 2010-07-27 2010-11-24 北京理工大学 Head gesture recognition technology-based wheelchair control method
CN105380762A (en) * 2014-09-05 2016-03-09 深圳市格兰莫尔寝室用品有限公司 Automatically-regulated bed and regulation method thereof
CN105758865A (en) * 2016-04-26 2016-07-13 河南工业大学 Method for detecting foreign matter in grain packing material based on terahertz waves and detecting system
CN208910759U (en) * 2018-04-08 2019-05-31 深圳光韵达光电科技股份有限公司 Feedback regulation bed based on THz wave detection

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