Short-wave high-signal-to-noise-ratio human body area network communication chip

Abstract

The invention discloses a short-wave and high-signal-to-noise-ratio human body area network communication chip, which is characterized in that a resonance principle is used as a basic framework, low-frequency sound waves are used as a transmission means, the low-frequency sound waves and a short-distance narrow-band low-frequency resonant cavity in the short-wave and high-signal-to-noise-ratio human body area network communication chip form resonance, and resonance sound wave information is reflected through optical signals; and the optical signal is decoded or encoded through a digital encoder to obtain information transmitted by the low-frequency sound wave or low-frequency sound wave information is sent to other equipment. The electromagnetic radiation problem of current body area network electromagnetic communication is solved, meanwhile, the characteristics that low-frequency sound waves are not prone to attenuation and absorption are applied, interference in the communication process is prevented, the anti-interference performance is improved, the communication signal-to-noise ratio is increased, and the low-frequency sound wave communication chip is suitable for being used as a communication chip in body area network equipment.

Description

Technical Field

[0001] The present invention relates to the field of communication chips, and in particular to a short-wave, high signal-to-noise ratio human body area network communication chip. Background Art

[0002] Human body area network is a technology that can monitor and record human health signals for a long time. Human body area network is mainly used in medical monitoring and monitoring, sports training, military training and other fields. In the field of medical monitoring and monitoring, it is a wireless dedicated communication system for human peripheral equipment.

[0003] As for the current human body area network, it mainly communicates through medium frequency, high frequency and ultra-high frequency electromagnetic waves, and most of the medical monitoring and monitoring equipment of the human body area network is worn on the body, such as: ECG stickers, temperature stickers, heart rate bracelets, sleep monitoring rings, blood oxygen rings, etc. Today's science shows that the higher the frequency of electromagnetic waves, the greater its energy and the greater the damage to the human body.

[0004] In addition, due to the characteristics of medium frequency, high frequency and ultra-high frequency electromagnetic wave communications, especially the poor anti-interference performance of medium frequency and high frequency electromagnetic waves, and the low signal-to-noise ratio of high frequency and ultra-high frequency electromagnetic waves, these two points will lead to a reduction in the authenticity and effectiveness of the data transmitted.

[0005] In summary, when BAN is applied in the field of medical monitoring and surveillance, it is necessary to solve 1. electromagnetic harm to human body, 2. anti-interference, and 3. low signal-to-noise ratio. To this end, the present invention provides a short-wave, high signal-to-noise ratio BAN communication chip. Summary of the invention

[0006] The purpose of the present invention is to provide a short-wave, high signal-to-noise ratio human body area network communication chip, which uses low-frequency sound waves for communication, reduces harm to the human body, utilizes the characteristics of low-frequency sound waves that are not easily attenuated and not easily absorbed, prevents interference during the communication process, increases its anti-interference ability, and utilizes a short-distance narrow-band low-frequency resonant cavity to resonate with low-frequency sound waves to improve its signal-to-noise ratio.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0008] A shortwave, high signal-to-noise ratio human body area network communication chip, characterized in that the communication chip consists of a chip substrate and a short-distance narrowband low-frequency resonant cavity, a light source, a reflection angle amplification array, a digital encoder and a power module installed on the chip substrate, the short-distance narrowband low-frequency resonant cavity is located in the central area of ​​the chip substrate, the light source is located above the short-distance narrowband low-frequency resonant cavity, the reflection angle amplification array is located between the short-distance narrowband low-frequency resonant cavity and the digital encoder, and the power module and the light source are arranged in parallel.

[0009] Preferably, the short-distance narrow-band low-frequency resonant cavity consists of a central rotating shaft, a rotating plate and a fixed-frequency resonant cavity.

[0010] Preferably, the fixed frequency resonant cavity is a transparent cavity that is wide in front and narrow in the back, or a Tesla valve structure. The fixed frequency resonant cavity is arranged on the rotating plate. The number of fixed frequency resonant cavities is an even number, and the number of fixed frequency resonant cavities is at least 2 and at most 64. The even number of fixed frequency resonant cavities is symmetrically arranged along the central axis of the rotating plate.

[0011] Preferably, the outlet direction of the fixed frequency resonant cavity (i.e., the narrow mouth direction of the fixed frequency resonant cavity) is kept uniformly counterclockwise or uniformly clockwise when it is laid out. When the fixed frequency resonant cavity receives a sound wave signal with the same frequency as its own, it resonates with the sound wave signal with the same frequency. At this time, the fixed frequency resonant cavity will drive the rotating plate to rotate on the central axis.

[0012] Preferably, the fixed-frequency resonant cavity's own vibration frequency interval is in [0.01, 16], in units of Hz, and the fixed-frequency resonant cavity's own vibration frequency arranged on the same rotating plate remains the same.

[0013] Preferably, a full-mirror light source reflector is provided on the rotating plate, and the full-mirror light source reflector is located on the side of the rotating plate.

[0014] Preferably, the light source irradiates light onto the full-mirror light source reflector in the form of direct light.

[0015] Preferably, the reflection angle magnification array is composed of mirror reflection columns, the number of the mirror reflection columns is not less than 2, and the mirror reflection columns are vertically arranged on the chip substrate.

[0016] Preferably, the light source emits a light beam that shines on a full-mirror reflector, which reflects the light beam into a reflection angle magnifying array. The light beam is continuously reflected in the reflection angle and finally reaches a digital encoder. When the fixed-frequency resonant cavity receives a sound wave signal with the same vibration frequency as its own, it resonates with the sound wave signal. At this time, the fixed-frequency resonant cavity will drive the rotating plate to rotate on the central axis. At the same time, the angle of the light beam reflected by the full-mirror reflector will be deflected. The deflected angle is amplified by the reflection angle magnifying array and then irradiated onto the digital encoder. At this time, there is an angle difference between the light beam signal received on the digital encoder and the position of the last light beam irradiation. At this time, a communication is completed.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By optimizing the design of the communication chip, a short-wave, high signal-to-noise ratio human body area network communication chip is formed, which uses low-frequency sound waves to transmit and receive data. Compared with traditional electromagnetic waves to transmit and receive data, it has the following advantages: 1. The low-frequency sound waves have the characteristics of being difficult to attenuate and difficult to be absorbed, so that the anti-interference ability of the communication chip when transmitting and receiving data is improved; 2. The low-frequency sound waves have lower radiation than electromagnetic waves, which is more beneficial to the human body; 3. The resonance principle of low-frequency sound waves and short-distance narrow-band low-frequency resonant cavities is used to reduce its noise and improve the signal-to-noise ratio; 4. The reflection angle amplification array is used to amplify the angle difference between the initial reflected light beam and the reflected light beam after deflection, so that the digital encoder can monitor the deflection of the reflected light beam. In addition, the present invention is ingenious in conception, novel in design, and has low radiation to the human body, and is suitable for promotion and use in human body area network equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the short-distance narrow-band low-frequency resonant cavity, light source, reflection angle magnification array, and digital encoder structure;

[0021] Figure 3 Schematic diagram of the reflection angle amplification array principle.

[0022] The components marked with numbers in the figure correspond to: chip substrate 1, short-distance narrowband low-frequency resonant cavity 4, light source 5, reflection angle amplification array 3, digital encoder 2, power module 6, central shaft 5, rotating plate 7, fixed frequency resonant cavity 6, full-mirror light source reflector 8. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly described below in conjunction with the accompanying drawings of the specification. In conjunction with the accompanying drawings of the specification, the specific implementation of the present invention is as follows:

[0024] See attached Figures 1 to 3 : A short-wave, high signal-to-noise ratio human body area network communication chip, characterized in that the communication chip consists of a chip substrate 1 and a short-distance narrowband low-frequency resonant cavity 4, a light source 5, a reflection angle amplification array 3, a digital encoder 2 and a power module 6 installed on the chip substrate 1, the short-distance narrowband low-frequency resonant cavity 4 is located in the central area of ​​the chip substrate 1, the light source 5 is located above the short-distance narrowband low-frequency resonant cavity 4, the reflection angle amplification array 3 is located between the short-distance narrowband low-frequency resonant cavity 4 and the digital encoder 2, and the power module 6 and the light source 5 are arranged in parallel.

[0025] Preferably, the short-distance narrow-band low-frequency resonant cavity 4 is composed of a central rotating shaft 5 , a rotating plate 7 and a fixed-frequency resonant cavity 6 .

[0026] Preferably, the fixed frequency resonant cavity 6 is a transparent cavity that is wide in front and narrow in the back, or a Tesla valve structure. The fixed frequency resonant cavity 6 is arranged on the rotating plate 7. The number of the fixed frequency resonant cavities 6 is an even number, and the number of the fixed frequency resonant cavities 6 is at least 2 and at most 64. The even number of fixed frequency resonant cavities 6 is symmetrically arranged along the central axis of the rotating plate 7.

[0027] Preferably, the outlet direction of the fixed frequency resonant cavity 6 (i.e., the narrow mouth direction of the fixed frequency resonant cavity 6) is kept uniformly counterclockwise or uniformly clockwise when it is laid out. When the fixed frequency resonant cavity 6 receives a sound wave signal with the same frequency as its own, it resonates with the sound wave signal with the same frequency. At this time, the fixed frequency resonant cavity 6 will drive the rotating plate 7 to rotate on the central shaft 5.

[0028] Preferably, the fixed-frequency resonant cavity 6 has its own vibration frequency interval in [0.01, 16], in Hz, and the fixed-frequency resonant cavity 6 arranged on the same rotating plate 7 has its own vibration frequency kept the same.

[0029] Preferably, a full-mirror light source reflection sheet 8 is provided on the rotating sheet 7 , and the full-mirror light source reflection sheet 8 is located on the side of the rotating sheet 7 .

[0030] Preferably, the light source 5 irradiates light onto the full-mirror light source reflector 8 in the form of direct light.

[0031] Preferably, the reflection angle magnification array 3 is composed of mirror reflection columns, the number of which is not less than 2, and the mirror reflection columns are vertically arranged on the chip substrate 1.

[0032] Preferably, the light source 5 emits a light beam which shines on the full-mirror reflector, and the full-mirror reflector reflects the light beam to the reflection angle magnification array 3. The light beam is continuously reflected in the reflection angle and finally reaches the digital encoder 2. When the fixed-frequency resonant cavity 6 receives the sound wave signal with the same vibration frequency as its own, it resonates with it. At this time, the fixed-frequency resonant cavity 6 will drive the rotating plate 7 to rotate on the central shaft 5. At the same time, the angle of the light beam reflected by the full-mirror reflector will be deflected. The deflection angle is amplified by the reflection angle magnification array 3 and then irradiated on the digital encoder 2. At this time, there is an angle difference between the light beam signal received on the digital encoder 2 and the position of the last light beam irradiation. At this time, a communication is completed.

[0033] See attached Figure 2:The present invention is designed based on the Helmholtz resonance principle. First, the fixed frequency resonant cavity 6 installed on the rotating plate 7 has a fixed vibration frequency (the fixed frequency interval of the fixed frequency resonant cavity 6 in the present invention is [0.01,16]). When the fixed frequency resonant cavity 6 receives a sound wave with the same vibration frequency as itself, resonance will occur. At this time, the fixed frequency resonant cavity 6 will drive the rotating plate 7 to rotate. The direction of rotation is determined by the installation and layout direction of the fixed frequency resonant cavity 6. When the rotating plate 7 rotates, it drives the full mirror light source reflection plate 8 to rotate, which further causes the full mirror light source reflection plate 8 to reflect the light source. The angle is offset, and then the reflection angle amplification array 3 reflects the irradiation point on the digital encoder 2 and offsets.

[0034] See attached Figure 3 :The light source 5 emits a light beam which shines on the full-mirror light source reflector 8. At this time, the light beam a1 reflected by the full-mirror light source reflector 8 enters the reflection angle magnification array 3. The light beam a1 is continuously reflected in the reflection angle magnification array 3 and shines on the digital encoder 2 to produce an initial irradiation point b1. When the rotating plate 7 drives the full-mirror light source reflector 8 to rotate, the incident angle of the light beam emitted by the light source changes. The light beam a2 reflected by the full-mirror light source reflector 8 has an angle difference with a1. The angle of the light beam a2 entering the reflection angle magnification array 3 also changes and deviates from the light beam a1. This deviation will gradually amplify after continuous reflection in the reflection magnification array, and finally shines on the digital encoder 2 to produce a deflected irradiation point b2.

[0035] If the reflection angle magnification array 3 is not provided in the present invention, the distance between the irradiation point a1 and the generated deflected irradiation point b2 is not obvious (the accuracy of the existing digital encoder 2 cannot be monitored), and the angle between the reflected light beam a1 and the reflected light beam b1 is extremely small and cannot be measured. Since the reflection angle magnification array 3 is composed of many mirror reflection columns, the irradiation point b2 generated after the reflected light beam b1 is reflected by the reflection angle magnification array 3 will be at a large distance from the irradiation point a1, achieving the monitoring accuracy of the existing digital encoder 2. When the digital encoder 2 detects the irradiation point b2, it converts the optical signal into an electrical signal for transmission.

[0036] The essence of the present invention is based on the Helmholtz resonance principle. After receiving the signal, the sound wave signal is converted into an optical signal, and then the optical signal is converted into an electrical signal. The sound wave signal is converted into an optical signal by using the Helmholtz resonance principle, and the optical signal is amplified by the reflection angle amplification array 3 to reach the accuracy range of the digital encoder 2, so that the digital encoder 2 can convert the optical signal into an electrical signal.

[0037] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Those familiar with the technology may modify or improve the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A short-wave, high signal-to-noise ratio human body area network communication chip, characterized in that The communication chip consists of a chip substrate and a short-distance narrowband low-frequency resonant cavity, a light source, a reflection angle amplification array, a digital encoder and a power module installed on the chip substrate. The short-distance narrowband low-frequency resonant cavity is located in the central area of ​​the chip substrate, the light source is located above the short-distance narrowband low-frequency resonant cavity, the reflection angle amplification array is located between the short-distance narrowband low-frequency resonant cavity and the digital encoder, and the power module and the light source are arranged in parallel.

2. A short-wave, high signal-to-noise ratio human body area network communication chip according to claim 1, characterized in that The short-distance narrow-band low-frequency resonant cavity is composed of a central rotating shaft, a rotating plate and a fixed-frequency resonant cavity.

3. A short-wave, high signal-to-noise ratio human body area network communication chip according to claim 2, characterized in that The fixed frequency resonant cavity is a transparent cavity that is wide in the front and narrow in the back, or a Tesla valve structure. The fixed frequency resonant cavity is arranged on the rotating plate. The number of fixed frequency resonant cavities is an even number, and the number of fixed frequency resonant cavities is at least 2 and no more than 64. The even number of fixed frequency resonant cavities is symmetrically arranged along the central axis of the rotating plate.

4. A short-wave, high signal-to-noise ratio human body area network communication chip according to claim 2, characterized in that When the fixed frequency resonant cavity is arranged, the exit direction (i.e., the narrow mouth direction of the fixed frequency resonant cavity) is kept uniformly counterclockwise or uniformly clockwise. When the fixed frequency resonant cavity receives a sound wave signal with the same frequency as its own, it resonates with the sound wave signal with the same frequency. At this time, the fixed frequency resonant cavity will drive the rotating plate to rotate on the central shaft.

5. A short-wave, high signal-to-noise ratio human body area network communication chip according to claim 2, characterized in that The fixed-frequency resonant cavity's own vibration frequency interval is in [0.01, 16], in units of Hz, and the fixed-frequency resonant cavity's own vibration frequency arranged on the same rotating plate remains the same.

6. A short-wave, high signal-to-noise ratio human body area network communication chip according to claim 2, characterized in that A full-mirror light source reflection sheet is arranged on the rotating sheet, and the full-mirror light source reflection sheet is located on the side of the rotating sheet.

7. A short-wave, high signal-to-noise ratio human body area network communication chip according to claim 1, characterized in that The light source irradiates light onto the full-mirror light source reflector in the form of direct light.

8. The short-wave, high signal-to-noise ratio human body area network communication chip according to claim 1, characterized in that The reflection angle magnification array is composed of mirror reflection columns, the number of which is no less than 2, and the mirror reflection columns are vertically arranged on the chip substrate.

9. A short-wave, high signal-to-noise ratio human body area network communication chip according to claim 1, characterized in that The light source emits a light beam that shines on the full-mirror reflector, and the full-mirror reflector reflects the light beam to the reflection angle magnification array. The light beam is continuously reflected in the reflection angle and finally reaches the digital encoder. When the fixed-frequency resonant cavity receives the sound wave signal with the same vibration frequency as its own, it resonates with it. At this time, the fixed-frequency resonant cavity will drive the rotating plate to rotate on the central axis. At the same time, the angle of the light beam reflected by the full-mirror reflector will be deflected. The deflection angle is amplified by the reflection angle magnification array and then irradiated on the digital encoder. At this time, there is an angle difference between the light beam signal received on the digital encoder and the position of the last light beam irradiation, and communication is completed at this time.

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