TWI672678B - Sensing device for sensing human body state by using magnetic field strength - Google Patents

Abstract

A sensing device for sensing the state of the human body using magnetic field strength includes a carrier, a plurality of magnetic field sensors, and a sensing element. The carrying part has a carrying platform for setting a human body, the magnetic field sensor is arranged on the carrying platform and is adjacent to the human body, the sensing part is arranged on the human body, and the sensing part makes each magnetic field follow the movement state or position of the human body relative to the carrying platform The sensor generates a sensing signal correspondingly.

Description

Sensing device using magnetic field intensity to sense human body state

The invention relates to a sensing device, in particular to a sensing device that uses magnetic field strength to sense the state of the human body.

Caring for infants and young children or patients with mobility issues and the elderly are currently the areas of care that require urgent attention. In addition to the high degree of professionalism in this type of work, parents or caregivers need to spend a lot of time to deal with them in person. There are many auxiliary tools to help identify caregivers, make care work more efficient and convenient, and reduce the burden and stress of work.

Traditional detection devices use digital cameras to record images of the care recipient, and then send the acquired digital images to the cloud server, computer, or mobile phone through the Internet, so that the caregiver can observe whether the care recipient has abnormalities. In addition, there are also electronic devices directly attached to the care receiver to monitor the health status of the care receiver.

However, the accuracy of the aforementioned image detection device is poor, and the body position of the care recipient cannot be grasped in real time. The electronic device requires a power source to operate normally, and may generate electromagnetic waves and cause health concerns.

Therefore, the main object of the present invention is to provide a sensing device that uses magnetic field strength to sense the state of the human body, which can reduce dead angle detection, increase real-time sensing speed and accuracy, and improve safety at the same time.

The present invention provides a sensing device that uses magnetic field strength to sense the state of the human body, and includes a carrier, a plurality of magnetic field sensors, and a sensor. The carrier has a carrier platform for setting a human body; the majority of the magnetic field A sensor is provided on the carrying platform, each of the magnetic field sensors is adjacent to the human body; and a sensing element is provided on the human body, and the sensing element moves each position according to the movement state or position of the human body relative to the carrying platform The magnetic field sensor correspondingly generates a sensing signal.

The detailed content or features provided by the present invention will be described in the detailed description of the subsequent embodiments. However, those skilled in the art should understand that the detailed description and the specific embodiments listed in the implementation of the present invention are only for illustration, not for limiting the protection scope of the claims of the present invention.

The first thing to explain is that the present invention can be widely applied to different types of human sensing, detection or monitoring purposes. Those skilled in the art can understand that the description language of this embodiment belongs to an upper-level description that does not limit the application mode, such as a program , Processes, use components, or signal processing terms include and are not limited to descriptions, do not limit the detected objects, and do not limit the physiological characteristics that can be detected.

As shown in FIGS. 1 to 4, the present invention provides a sensing device that uses magnetic field strength to sense the state of the human body, which mainly includes a carrier 10, a plurality of magnetic field sensors 20, and at least one sensing element 40. The carrier 10 in this preferred embodiment takes a crib as an example. The carrier 10 has a carrier platform 12 for setting a human body 30. The human body in this preferred embodiment uses infants as an example. , Can also be an adult or elderly.

The magnetic sensor 20 (Magnetic Sensor) is disposed on the supporting platform 12. Each magnetic sensor 20 is adjacent to the human body 30 and can be arranged along the supporting platform 12 in a matrix shape. The arrangement of the magnetic field sensor 20 can be adjusted according to the lying, lying, or various postures of the human body. For example, the baby of this preferred embodiment would sleep on his back, side, or prone to sleep, and the magnetic field sensor 20 can be It can be arranged at intervals along the plane of the carrying platform 12 in accordance with the supine sleeping posture shown in FIG. 3 or the lying-down sleeping posture shown in FIG. 4, and can even be arranged on the carrying platform 12 as shown in FIG. 4 Above the surrounding side portions 16, a magnetic field sensing area can be formed that more comprehensively and completely covers the entire bearing platform 12 range.

The sensing element 40 is made of a magnetically permeable material. The sensing element 40 is combined with the clothing or skin surface of the human body 30 in any way that can be set on the human body 30. When the human body 30 lies on the carrying platform 12 and moves or turns over With the human body 30, the sensing element 40 can cause each magnetic field sensor 20 to generate a sensing signal correspondingly. The signal processing and calculation mechanism of the sensing signal of the present invention can calculate the magnetic field change of each magnetic field sensor 20, and Determine and detect the position and posture of the human body. Furthermore, the sleep quality can also be confirmed according to the time when the magnetic field changes and the position of the human body 30, which can be used as a human health index and medical reference data.

With the aforementioned components, the magnetic field sensor 20 is adjacent to the human body 30 and is arranged according to the area of the carrying platform 12 to form a complete magnetic field. Once the human body 30 changes its posture, the magnetic field sensor can be changed by synchronously driving the sensor 40 The magnetic field that can be detected by the 20 allows the magnetic field changes collected by the magnetic field sensors 20 to more accurately and quickly detect a sleeping or lying state, avoiding the regret of sudden death when lying down, and there will be no dead angle detection. Or the problem of hysteresis reaction, and the sensor 40 of the present invention does not need to use a battery, does not generate high-frequency electromagnetic waves, can easily wear and improve the advantages of identification accuracy, with all magnetic field sensors 20 can be more accurate Position and posture of the human body.

10‧‧‧Carrier

12‧‧‧Bearing platform

16‧‧‧Side

20‧‧‧ magnetic field sensor

30‧‧‧Human

40‧‧‧Sensor

Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is a top view of a preferred embodiment of the present invention. Figure 3 is a side view of a preferred embodiment of the present invention, in which the infant is sleeping on his back. Figure 4 is a side view of a preferred embodiment of the present invention, in which the infant is sleeping on his stomach.

Claims (2)

A sensing device for sensing the state of the human body using magnetic field strength, comprising: a bearing member with a bearing platform for setting a human body; most magnetic field sensors are provided on the bearing platform, each of the magnetic field sensing The sensor is adjacent to the human body; and a sensing element is provided on the human body, and the sensing element causes each of the magnetic field sensors to generate a sensing signal corresponding to the moving state or position of the human body relative to the carrying platform; wherein the carrying The piece is provided with a side portion surrounding the carrying platform, and the majority of magnetic field sensors are provided on the side portion. The sensing device for sensing the human body state using the magnetic field strength according to claim 1, wherein the plurality of magnetic field sensors are arranged in a matrix on the carrying platform.