CN210271189U - Quilt kicking device with attitude sensor - Google Patents
Quilt kicking device with attitude sensor Download PDFInfo
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- CN210271189U CN210271189U CN201920874870.XU CN201920874870U CN210271189U CN 210271189 U CN210271189 U CN 210271189U CN 201920874870 U CN201920874870 U CN 201920874870U CN 210271189 U CN210271189 U CN 210271189U
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Abstract
The utility model discloses a quilt kicking device with an attitude sensor, which comprises a shell and a main control module in the shell, wherein the shell comprises an upper shell and a lower shell, and also comprises a distance measuring module, an attitude sensor and a power supply module which are in signal connection with the main control module; the distance measurement module is used for monitoring the distance between the monitored object and the quilt in real time; the attitude sensor is used for monitoring the turning angle of the quilt kicking device; the power supply module is used for supplying power to the kicked device; and the main control module receives the data of the ranging module and the attitude sensor to analyze and judge the kicking result.
Description
Technical Field
The utility model belongs to detection device's field, concretely relates to play by ware device with attitude sensor.
Background
The infants, various patients, the old and other people who temporarily lack the self-care ability and have weak self-care ability have poor self-care ability, the quilt is frequently kicked away during sleeping, or the people turn over during sleeping to lift the quilt, or the people who sleep on the stomach and have oxygen deficiency asphyxia, at the moment, the guardians or nurses of the people who temporarily lack the self-care ability and have weak self-care ability such as the infants, various patients, the old and other people who temporarily lack the self-care ability and have weak self-care ability often cannot perceive the people because of deep sleep, and the people who temporarily lack the self-care ability and have weak self-care ability such as the infants, various patients, the old and other people who have a deep sleep feel cold because. A caregiver or a caregiver for a group of infants, various patients, old people, etc. who temporarily lacks self-care ability and has weak self-care ability often cannot check the physical state of the group of people with poor self-care ability, such as body temperature, particularly during sleep at night, all day long. Therefore, it is necessary to monitor the kicking situations of people who are infants, various patients, old people, and the like, who temporarily lack self-care ability and have weak self-care ability in real time.
At present, the solution for detecting kicking quilt is mainly to judge and remind kicking quilt by detecting the temperature change in quilt. This solution has the problem of long detection times, since the temperature decrease is a gradual process.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a play by ware device with attitude sensor, can real-time supervision by the object play by the state, solved and played by the long problem of detection time that detects.
In order to achieve the purpose, the quilt kicking device with the attitude sensor comprises a shell and a main control module in the shell, wherein the shell comprises an upper shell and a lower shell, and further comprises a distance measuring module, an attitude sensor and a power supply module, and the distance measuring module, the attitude sensor and the power supply module are in signal connection with the main control module;
the attitude sensor comprises a gyroscope, an accelerometer and an electronic compass, and can feed back respective acceleration components of three coordinate axes (x, y, z) on a space vector in real time;
the distance measurement module is used for monitoring the distance between the monitored object and the quilt in real time; the attitude sensor is used for monitoring the turning angle of the quilt kicking device; the power supply module is used for supplying power to the kicked device; and the main control module receives the data of the ranging module and the attitude sensor to analyze and judge the kicking result.
Preferably, the upper case is a light-transmitting member made of a light-transmitting material.
Preferably, the ranging module is located between the upper case and the main control module.
The alarm device further comprises an alarm module, wherein the alarm module receives the alarm information transmitted by the main control module, and the alarm module gives an alarm in the form of sound, light or air pressure.
Preferably, the power supply module is a rechargeable battery or a disposable battery.
And the main control module is in data communication with the mobile terminal through the communication module and transmits display data and alarm information to the mobile terminal through the communication module.
The utility model provides a play by ware device with attitude sensor has following beneficial effect:
1. the distance measurement module and the attitude sensor can obtain the state of the monitored object so as to judge whether a kicked event occurs or not;
2. whether the detected object kicks the quilt or not is monitored in real time, the detection time is rapid, and the state of the kicked quilt can be rapidly adjusted or changed manually;
3. the situation that the front of the detected object lies prone can be monitored, and the front lying state of the detected object can be adjusted or changed manually.
Drawings
Fig. 1 is a schematic diagram of an output signal of an attitude sensor according to an embodiment when the attitude sensor is in a static state or a uniform motion in a gravity field.
Fig. 2 is a schematic diagram of an apparatus flip angle of an attitude sensor using a circular sheet according to an embodiment.
Fig. 3 is a schematic diagram of the relationship between the turning angle, the distance threshold and the real-time distance measuring distance of the kicker device according to the specific embodiment.
Fig. 4 is a schematic structural diagram of a kicker device of an embodiment.
Fig. 5 is a sectional view taken along line a-a of fig. 4.
In the figure:
1. the device comprises an upper shell 2, a main control module 21, an attitude sensor 22, a distance measuring module 3, a lower shell 4 and a power supply module.
Detailed Description
In order to make the technical field better understand the solution of the present invention, the present invention will be further described in detail with reference to the following embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1
As shown in fig. 4-5, a quilt kicking device with an attitude sensor comprises a shell and a main control module 2 in the shell, wherein the shell comprises an upper shell 1 and a lower shell 3, a distance measuring module 22 and an attitude sensor 21 which are in signal connection with the main control module 2 are arranged on the main control module 2 towards the side surface of the upper shell 1, the upper shell 1 is a light-transmitting piece made of a light-transmitting material, a power supply module 4 and an alarm module which are in signal connection with the main control module 2 are arranged in the shell, the power supply module 4 provides energy for the whole system to work, and the power supply module 4 uses a rechargeable battery or a disposable battery; the alarm module receives the alarm information transmitted by the main control module 2, and the alarm module gives an alarm in the form of sound, light or air pressure and the like. In use, one side of the distance measuring module 22 of the quilt kicking device faces the quilt, and the lower shell 3 is close to the body of the user.
The ranging module 22 is a distance sensor using tof (time of flight) technology, which obtains the target object distance by continuously sending light pulses to the target and then receiving light returning from the object with the sensor, and detecting the time of flight (round trip) of the light pulses. By means of the distance sensor we can find the distance of the device from the closest object in the current TOF direction. The distance measuring module 22 in this embodiment can obtain the distance between the kicker and the quilt.
The attitude sensor 21 is a high-performance three-dimensional motion attitude measurement system based on the MEMS technology, and the attitude sensor 21 includes motion sensors such as a three-axis gyroscope, a three-axis accelerometer, and a three-axis electronic compass.
The attitude sensor 21 employs a high-precision triaxial accelerometer, which can feed back respective acceleration components of 3 coordinate axes (x, y, z) on a space vector in real time.
When the attitude sensor 21 moves and accelerates in a certain direction, the respective components of the acceleration in the direction are fed back on the xyz axis, and the vector sum of the components is the acceleration value in the direction.
If the attitude sensor 21 is in a stationary state, it will have a gravitational acceleration g in the direction of the vertical earth due to the gravitational force.
If the attitude sensor 21 is in a static or uniform motion in the gravity field, as shown in fig. 1, the output signals are:
the X channel is +/-0 g;
the Y channel is +/-0 g;
z channel +1 g.
Table 1 lists all corresponding output signals at X, Y, Z at a range setting of ± 2g and under the assumption of a top-down gravity vector when the attitude sensor 21 is stationary or moving at a constant velocity in the gravity field.
Table 1 all corresponding output signals of attitude sensor at X, Y, Z
According to the static characteristics of table 1, we can determine the vertical turning angle of the device by identifying the component of the z-axis corresponding to the gravity acceleration g when the attitude sensor 21 is static and determining the relative angle between the z-axis and the horizontal plane in the spatial attitude.
In the present embodiment, the main requirement is to determine the apparatus flip angle, and it is not necessary to consider that the apparatus rotates in the xy-axis direction around the z-axis, so the apparatus is represented by a circular sheet. When rotating in the xy-axis direction with the z-axis as the central axis, only the g component of the gravity acceleration in the xy-axis direction is influenced, and the z-axis component is not influenced, so that the included angle of the z-axis to the horizontal plane is only concerned about for judging the overturning angle of the equipment, and the rotation in the xy-axis direction is not concerned about.
As shown in fig. 2, plotted as the z-axis, the z-axis forms an angle θ with the g-axis, and the z-axis gravity component is expressed as follows:
gz＝g×cosθ
according to the above formula, by reading the z-axis acceleration value, the included angle θ, i.e. the angle between the z-axis and the vertical line, can be deduced reversely. Thereby obtaining the turnover angle of the quilt kicking device.
θ＝arc cos(gz/g)
As shown in fig. 3, in combination with the attitude sensor 21 and the distance sensor, the turning angle of the current kicker device and the distance between the nearest objects on the front side of the kicker device can be measured. By using the two parameters, the state of the monitored object can be obtained, and the algorithm is assisted, so that whether the kicked event exists or not is judged.
The monitored object is set to lie flat, the equipment is worn on the front, and the equipment is arranged to face upwards, namely the attitude sensor 21 faces upwards and the distance sensor faces upwards.
The monitored object is covered with a drape which is used as the object to be measured. The monitored person can turn over at will, and if the shoulder width of the monitored object is D, the equipment is placed in the middle D/2.
Assuming a distance threshold T, when the distance between the kicker device and the passive is detected to be greater than T, the passive is considered to be kicked off for alarming.
The distance threshold T is not a fixed value, but is a variable value that follows according to the current device flip angle. This part has the following algorithm settings:
when 0 ≦ θ <90 degrees, T may be set to a very small value, close to zero, i.e., set to 0.
When 90 < θ <180 degrees, the distance from the apparatus to the horizontal plane is T ═ D/(2 × tan (θ -90)) in a triangular relationship, and the tthreshold is set to be smaller than this value, i.e., T < D/(2 × tan (θ -90)),
when: when theta is 180, represent the front and lie prone, can't judge whether play by, no matter drape or horizontal plane all make the distance be 0, remind the monitored object to lie prone on the front.
According to the algorithm, the distance threshold value T and the real-time distance measuring distance can be obtained, the distance threshold value T and the real-time distance measuring distance are compared, and when the real-time distance measuring distance exceeds the distance threshold value T, the kicked event is considered to occur.
A method of monitoring a kicked quilt, comprising the steps of:
(1) attitude sensor 21 acquires z-axis direction acceleration value gzAccording to the formula θ ═ arc cos (g)z/g), obtaining the overturning angle theta of the quilt kicking device;
(2) inputting the shoulder width D of the monitored object into the main control module 2;
(3) the attitude sensor 21 transmits the data result of the turning angle theta to the main control module 2, the main control module 2 analyzes the data theta, and if the theta is more than or equal to 0 and less than 90 degrees, the distance threshold T is set to be 0; if the 90 degrees is more than or equal to theta and less than 180 degrees, setting the distance threshold value T as D/(2 multiplied tan (theta-90)); if θ is 180, it cannot be determined whether the object is kicked, and the main control module 2 obtains the result that the monitored object is lying on the front;
(4) the distance measurement module 22 monitors the distance between the monitored object and the quilt in real time and transmits the obtained data result of the real-time distance measurement distance to the main control module 2;
(5) the main control module 2 compares the distance threshold T obtained in the step (3) with the real-time distance measurement distance obtained in the step (4), and if the real-time distance measurement distance is not greater than the distance threshold T, the kicking event does not occur; if the real-time distance measurement distance is larger than the distance threshold value T, the kicking event occurs, and the main control module 2 transmits alarm information of the kicking event to the alarm module for alarming; if the result that theta is 180 is obtained, the main control module 2 transmits alarm information that the monitored object has fallen prone to the front to the alarm module to alarm.
Example 2
As shown in fig. 4-5, a quilt kicking device with an attitude sensor comprises a shell, a main control module 2 and a mobile terminal, wherein the shell comprises an upper shell 1 and a lower shell 3, a distance measuring module 22 and an attitude sensor 21 which are in signal connection with the main control module 2 are arranged on the side surface of the main control module 2 facing the upper shell 1, the upper shell 1 is a light-transmitting piece made of a light-transmitting material, a power supply module 4 and a communication module which are in signal connection with the main control module 2 are arranged in the shell, the power supply module 4 provides energy for the whole system to work, and the power supply module 4 uses a rechargeable battery or a disposable battery; the communication module is in data communication with the mobile terminal, the mobile terminal and the main control module 2 can perform bidirectional data transmission through the communication module, the mobile terminal transmits an instruction to the main control module 2 through the communication module, the main control module 2 transmits display data and alarm information to the mobile terminal through the communication module, and the communication module in the embodiment uses Bluetooth communication; the mobile terminal can use APP and can also use WeChat to display and control. In use, one side of the distance measuring module 22 of the quilt kicking device faces the quilt, and the lower shell 3 is close to the body of the user.
A method of monitoring a kicked quilt, comprising the steps of:
(1) attitude sensor 21 acquires z-axis direction acceleration value gzAccording to the formula θ ═ arc cos (g)z/g), obtaining the overturning angle theta of the quilt kicking device;
(2) inputting the shoulder width D of the monitored object into the main control module 2;
(3) the attitude sensor 21 transmits the data result of the turning angle theta to the main control module 2, the main control module 2 analyzes the data theta, and if the theta is more than or equal to 0 and less than 90 degrees, the distance threshold T is set to be 0; if the 90 degrees is more than or equal to theta and less than 180 degrees, setting the distance threshold value T as D/(2 multiplied tan (theta-90)); if θ is 180, it cannot be determined whether the object is kicked, and the main control module 2 obtains the result that the monitored object is lying on the front;
(4) the distance measurement module 22 monitors the distance between the monitored object and the quilt in real time and transmits the obtained data result of the real-time distance measurement distance to the main control module 2;
(5) the main control module 2 compares the distance threshold T obtained in the step (3) with the real-time distance measurement distance obtained in the step (4), and if the real-time distance measurement distance is not greater than the distance threshold T, the kicking event does not occur; if the real-time distance measurement distance is larger than the distance threshold value T, the kicking event occurs, and the main control module 2 transmits alarm information of the kicking event to the mobile terminal through the communication module; if the result that theta is 180 is obtained, the main control module 2 transmits alarm information that the monitored object has fallen down on the front to the mobile terminal through the communication module.
The inventive concept is explained in detail herein using specific examples, and the above description of the embodiments is only used to help understand the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A quilt kicking device with an attitude sensor comprises a shell and a main control module in the shell, wherein the shell comprises an upper shell and a lower shell, and the quilt kicking device is characterized by further comprising a distance measuring module, an attitude sensor and a power supply module which are in signal connection with the main control module;
the attitude sensor comprises a gyroscope, an accelerometer and an electronic compass, and can feed back respective acceleration components of three coordinate axes (x, y, z) on a space vector in real time;
the distance measurement module is used for monitoring the distance between the monitored object and the quilt in real time; the attitude sensor is used for monitoring the turning angle of the quilt kicking device; the power supply module is used for supplying power to the kicked device; and the main control module receives the data of the ranging module and the attitude sensor to analyze and judge the kicking result.
2. The kicker device of claim 1, wherein the upper case is a light-transmitting member made of a light-transmitting material.
3. The kicker device of claim 2, wherein the ranging module is located between the upper case and the main control module.
4. The quilt kicking device of claim 1, further comprising an alarm module, wherein the alarm module receives alarm information transmitted by the main control module, and the alarm module gives an alarm in the form of sound, light or air pressure.
5. The kicker device of claim 1, wherein the power module is a rechargeable battery or a disposable battery.
6. The quilt kicking device of claim 1, further comprising a communication module, wherein the main control module is in data communication with the mobile terminal through the communication module, and the main control module transmits display data and alarm information to the mobile terminal through the communication module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920874870.XU CN210271189U (en) | 2019-06-11 | 2019-06-11 | Quilt kicking device with attitude sensor |
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| CN201920874870.XU CN210271189U (en) | 2019-06-11 | 2019-06-11 | Quilt kicking device with attitude sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136402A (en) * | 2019-06-11 | 2019-08-16 | 北京米萌智能科技有限公司 | The method for kicking quilt device device and being kicked quilt with monitoring with attitude transducer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136402A (en) * | 2019-06-11 | 2019-08-16 | 北京米萌智能科技有限公司 | The method for kicking quilt device device and being kicked quilt with monitoring with attitude transducer |
| CN110136402B (en) * | 2019-06-11 | 2024-04-26 | 北京米萌智能科技有限公司 | Quilt kicking device with attitude sensor and method for monitoring quilt kicking |
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