CN218099611U - Sitting posture reminding instrument capable of automatically waking up and sleeping - Google Patents

Abstract

The utility model discloses a sitting posture reminding instrument capable of automatically waking up and sleeping, which belongs to the technical field of sitting posture reminding and aims to solve the problem that the reminding instrument in the prior art can not automatically wake up and sleep according to the use environment, and comprises a shell, wherein a micro-processing unit MCU, a detection module for detecting sitting posture, an infrared human body induction module for near field detection and a prompt module for prompting sitting posture are arranged in the shell, and the micro-processing unit MCU is respectively in signal connection with the detection module, the infrared human body induction module and the prompt module; the top surface of the shell is provided with a Fresnel mirror, and infrared rays emitted by the infrared human body sensing module are refracted by the Fresnel mirror and then are emitted out of the shell. Whether human infrared signal exists around sensing through infrared human response module, and the position of sitting reminds the appearance to be awaken up after continuously detecting human infrared signal certain time, otherwise then gets into the sleep state, improves the automation, the intellectuality of position of sitting reminds the appearance, and practices thrift the energy consumption.

Description

Sitting posture reminding instrument capable of automatically waking up and sleeping

Technical Field

The utility model relates to a technical field is rectified to the position of sitting relates to a position of sitting reminds the appearance, especially relates to a can realize automatically waking up and the position of sitting of dormancy reminds the appearance.

Background

For students in middle and primary schools, the learning state of daily learning is a problem which cannot be ignored, and good learning state can concentrate attention and improve learning efficiency. An obvious index of the good and bad learning state is the standard degree of the sitting posture of an individual, and the standard sitting posture enables other people to feel that the individual is in a state of concentration at a glance. The irregular sitting posture not only can lead to the attention being not concentrated enough to influence the learning efficiency, but also can influence the body health more seriously. Research shows that the vision of students is affected when the students lean forward in head and read and write too close to books during learning, and the situations of myopia, high myopia and the like are caused when the students cannot sit in a non-standard posture for a long time. The habit of sitting untimely and keeping bending and humpback of students not only affects the personal image and quality of qi, but also affects the normal development of students and induces various diseases such as scoliosis, cervical spondylosis, lumbar spondylosis and the like.

The sitting posture problem of the students is not worried about for the self-disciplined students as to how to keep the students in the correct sitting posture; however, for the involuntary students, only the teacher or the parents can supervise and urge at ordinary times, but the effect of the mode is not ideal, because the sitting postures of some students are untimely and are usually unconscious, habits are naturally formed over time, and the learning state is further influenced. For teachers, it is almost impossible to give a lecture on a platform and to note whether the learning state or sitting posture of dozens of people in the whole class is problematic. For parents, the children can only watch the learning condition occasionally, and the parents cannot watch the sitting posture of the children at all times. For this reason, instruments and devices related to sitting posture reminding are gradually generated.

The existing sitting posture reminding instrument mainly comprises a hanging neck type instrument, a desktop supporting type instrument and a desktop placing type instrument.

The so-called neck hanging type is shown in fig. 1, which means that a user hangs an instrument on the neck, the main instrument is attached to the back, when the user bends down and bends his head, the inclination angle of the instrument is driven to change and a threshold value is triggered to remind the user to adjust and maintain a standard sitting posture. Although this hang neck formula and remind appearance reminds the user to standardize the position of sitting through the crooked range that detects the back, this hang neck formula and remind appearance is because paste and lean on user's back, and it can not detect the distance of user's eyes apart from the desktop, and is limited to user's position of sitting rectification.

The table top supporting type is that a supporting device is fixed on a table top, and the supporting device can limit the minimum distance between the head and the table top on one hand and avoid the head and eyes from being too close to the table top on the other hand, as shown in the attached drawing 2; the support device can also limit the forward leaning of the user's body. This bearing formula device can effectively avoid user's eyes to be too close to the desktop, but in the in-service use process, especially long-term use in-process, the user can habitually lean on the health to press on bearing formula device, and the head is directly placed on bearing formula device's U type rack, and the above-mentioned health part of user desktop all directly leans on to press on bearing formula device, and oneself need not or use a small part of strength can, form worse position of sitting custom over a long time.

The desktop placement type is, as shown in fig. 3, that is, the reminder is placed at a certain distance right in front of the desktop exercise book, and the reminder reminds the user to adjust the sitting posture by measuring the distance between the head or eyes of the user and the reminder when the distance is too short. However, the reminder can only measure the distance between the head or eyes of the user and the reminder, and when the distance does not trigger the threshold, the head or eyes of the user are too close to the desktop, so that the reminder cannot accurately detect the problem that the eyes of the user are too close to the desktop.

Most of the existing reminding instruments are still turned on, turned off, awakened or dormant through on-off keys on the instruments, and the existing reminding instruments cannot be automatically turned on, turned off, awakened or dormant according to the using environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that the reminding instrument that exists among the prior art can't realize opening automatically and awaken up and dormancy according to service environment, the utility model provides a can awaken up automatically and remind appearance with the position of sitting of dormancy.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

a sitting posture prompting instrument capable of automatically waking up and sleeping comprises a shell, wherein a microprocessing unit (MCU), a detection module for detecting sitting postures, an infrared human body induction module for near-field detection and a prompting module for prompting the sitting postures are arranged in the shell, and the microprocessing unit (MCU) is respectively in signal connection with the detection module, the infrared human body induction module and the prompting module; the top surface of the shell is provided with a Fresnel mirror, and human body infrared shaking signals are refracted by the Fresnel mirror and then enter the infrared human body induction module in the shell.

Before sitting posture detection, a near-field distance threshold and a near-field duration threshold of the infrared human body induction module are preset; when sitting posture is detected, the infrared human body induction module detects the infrared shaking condition within the near-field distance threshold range; if the micro processing unit MCU judges that infrared jitter exists in the near field distance threshold range and the duration time of the infrared jitter exceeds the near field time length threshold, triggering and awakening, and starting detection by the laser ranging module; and if the micro processing unit MCU judges that no infrared jitter exists in the near-field distance threshold range or the infrared jitter duration does not exceed the near-field duration threshold, triggering the dormancy, and stopping the detection of the laser ranging module.

The existing reminding instrument mostly adopts ultrasonic ranging or infrared ranging, but when the reminding instrument adopting the ultrasonic ranging or the infrared ranging is used, the ultrasonic ranging or the infrared ranging can have obvious near-field detection phenomenon, so that the reminding instrument has serious false alarm condition, and the using effect of a user is influenced. Therefore, the detection module adopts a laser ranging module, and the laser ranging module adopts a TOF laser ranging module.

Preferably, the TOF laser ranging module is a model VL53L0X or VL53L1X TOF laser ranging module.

Preferably, laser emitted by the TOF laser ranging module is emitted through a laser hole in the top surface of the shell to form a light cone with the taper theta of 2-3 degrees and the height of 2-500 cm.

The utility model has the advantages as follows:

1. in the utility model, a Fresnel mirror is arranged on the shell of the sitting posture reminding instrument, the infrared rays emitted by the infrared human body induction module in the sitting posture reminding instrument are refracted by the Fresnel mirror and then are emitted out of the shell, and the infrared rays are deflected to one side close to a user after passing through the Fresnel mirror; this infrared human response module mainly used approach detection, after the user takes a seat, whether there is human infrared signal in the range about the infrared human response module senses around 20CM, and detect human infrared signal after the certain time sitting posture and remind the appearance to awaken up continuously, do not detect human infrared signal after the certain time sitting posture and remind the appearance to get into the sleep state continuously, thereby realize the automatic awakening and the dormancy of appearance are reminded to the position of sitting, improve the automation that the appearance was reminded to the position of sitting, it is intelligent, and practice thrift the energy consumption. In addition, the infrared human body sensing module can sense the time of a user continuously on a seat, the time length of leaving can be recorded when the user stands up and leaves as playing, and a certain supervision effect is realized on the learning of the user.

2. The utility model discloses in, this position of sitting reminds appearance adopts TOF laser rangefinder module, TOF laser rangefinder module can select for use VL53L0X or VL53L1X, its built-in 940nmVCSEL transmitter can emit not be the laser of a kind that people's eye sees totally, a kind of laser is harmless to people's eye, can place under user's chin, can directly detect the distance of user's head or head part region (for example eyes) apart from the desktop, this detection distance can directly reflect the distance of user's eyes apart from the desktop, eyes are higher apart from the distance detection precision of desktop, also can in time remind, indicate when the position of sitting nonstandard leads to head or eyes to be closer apart from the desktop simultaneously; in addition, the laser that TOF laser rangefinder module produced is and outwards launches the back, can form the little light cone of cone angle, the near field detection effect that can produce is more weak, the user is being close to the seat and sits down, the in-process of normally writing is difficult for being detected, only hang down to the certain distance apart from the desktop or because of the position of sitting nonstandard cause user's head, chest, position such as shoulder enter into the detection light cone within range of rangefinder module for a certain time just can trigger and remind, the suggestion, this reminds the appearance and is difficult for causing the wrong report, it is higher to remind the accuracy.

Drawings

FIG. 1 is a schematic structural diagram of a neck hanging type reminder in the prior art;

FIG. 2 is a schematic diagram of a desktop supported reminder in the prior art;

FIG. 3 is a schematic structural diagram of a desktop reminder in the prior art;

FIG. 4 is a schematic structural view of the present invention;

fig. 5 is a schematic structural view of the middle sitting posture reminder of the present invention;

FIG. 6 is a schematic view of the installation of the laser hole and the Fresnel mirror according to the present invention;

FIG. 7 is a schematic view of the installation of the laser ranging module and the infrared human body sensing module of the present invention;

fig. 8 is a schematic view of the usage status of the sitting posture reminder of the present invention;

wherein the reference numerals are: the human body warning device comprises a shell 1, a laser hole 2, a Fresnel mirror 3, a prompt lamp band 4, a loudspeaker 5, a mounting groove 6, a laser ranging module 7, an infrared human body sensing module 8 and a mounting base 9.

Detailed Description

Example 1

The embodiment provides a sitting posture reminding instrument capable of automatically waking up and sleeping, which comprises a shell, wherein a micro processing unit (MCU), a detection module for detecting a sitting posture, an infrared human body sensing module for near-field detection and a prompting module for prompting the sitting posture are arranged in the shell, the infrared human body sensing module only adopts the existing and conventional infrared human body sensing module, and the infrared human body sensing module is mainly used for detecting whether a person approaches the sitting posture reminding instrument or not; the Fresnel mirror is installed on the top surface of the shell, human body infrared jitter signals are refracted by the Fresnel mirror and then enter the infrared human body induction module in the shell, and the infrared human body induction module can be an existing conventional infrared human body induction module. The Fresnel mirror is arranged and the installation position of the Fresnel mirror is adjusted, so that the deflection condition of the Fresnel mirror is adjusted, and surrounding infrared light can be collected in a wider range. When the infrared human body induction module detects that a human body approaches (namely, the human body infrared light with jitter is continuously detected), a detection signal is output to the micro processing unit MCU, the micro processing unit MCU outputs a control signal to the detection module according to the detection signal, and the detection module is awakened and detects the sitting posture condition of a user; when the infrared human body sensing module detects that a user leaves (namely jittering human body infrared light is not detected or jittering human body infrared light is detected but the time is short), a detection signal is output to the microprocessing unit MCU, the microprocessing unit MCU outputs a control signal to the detection module according to the detection signal, the detection module enters a sleep mode, and the sitting posture condition of the user is not detected.

In this embodiment, the MCU is a bluetooth chip, which is responsible for computing, determining, and controlling. This bluetooth chip can adopt the Norwegian brand: NORDIC, manufacturer model: NRF52832-QFAA-R, or the domestic brand: tailing microelectronics, manufacturer model: TLSR8258F512ET 48.

The specific detection steps are as follows:

before sitting posture detection, a near-field distance threshold and a near-field duration threshold of the infrared human body induction module are preset; when sitting posture is detected, the infrared human body induction module detects the infrared shaking condition within the near-field distance threshold range; the stable human body infrared light enters the human body infrared sensor through the Fresnel lens and does not trigger any reaction; if the infrared light shakes, an electric signal is triggered and generated, and people around the electric signal is randomly judged.

During detection, if the micro processing unit MCU judges that infrared jitter exists in the near-field distance threshold range and the duration time of the infrared jitter exceeds the near-field duration threshold, triggering and awakening, and starting detection by the laser ranging module; and if the micro processing unit MCU judges that no infrared jitter exists in the near-field distance threshold range or the infrared jitter duration does not exceed the near-field duration threshold, the dormancy is triggered, and the laser ranging module stops detection.

The working process of the sitting posture reminding instrument is as follows:

the sitting posture prompting instrument is installed/placed on a table top, and after a user sits on the table, human body infrared light in a larger range can enter the shell through the Fresnel mirror and be received by the infrared human body sensing module under the action of the Fresnel mirror; an infrared human body induction module of the reminder senses that human body infrared shaking signals exist within the range of 20cm around the reminder and continues the state for a certain time, then the infrared human body induction module outputs detection signals to a microprocessing unit (MCU), and the microprocessing unit (MCU) outputs control signals and wakes up the reminder; after a user leaves a seat, the infrared human body induction module of the reminder senses that no human body infrared shaking signal exists in the range of 20cm around and continues the state for a certain time, then the infrared human body induction module outputs a detection signal to the microprocessing unit MCU, and the microprocessing unit MCU outputs a control signal and enables the reminder to enter a sleep mode.

In addition, the time length of the infrared human body sensing module sensing the human condition is recorded, so that the user can be judged to be learning in the time period; if the user leaves, the time length of sensing the human body by the infrared human body sensing module is interrupted. Therefore, the learning condition of the user can be supervised by recording and analyzing the time length of the infrared human body induction module sensing the human condition.

Example 2

For overcoming current reminiscences and causing the serious problem of reminiscences false positive when adopting ultrasonic wave or infrared range finding, this embodiment adopts a class of laser that does not have the injury to the human eye to realize the range finding for this reason, and this detection module chooses laser range finding module promptly for use, and this laser range finding module adopts TOF laser range finding module, and this TOF laser range finding module adopts the model to be VL53L0X or VL53L 1X's TOF laser range finding module. VL53L0X, VL L1X are all new generation time of flight TOF laser ranging modules, and adopt the smallest package in the current market, and can provide accurate distance measurement no matter what the target reflectivity is; VL53L0X can measure 2m absolute distance, VL53L1X can measure 5m absolute distance, a leading SPAD array (single photon avalanche diode) is integrated, and ST is embedded in the second generation FlightSense technology; and the laser emitted by the 940nm VCSEL emitter (vertical cavity surface emitting laser) is not seen by human eyes at all and cannot cause damage to the human eyes, and the built-in physical infrared filter is added, so that the distance measurement distance is longer, the immunity to ambient light is stronger, and the stability to optical crosstalk of the cover plate is better.

Laser emitted by the TOF laser ranging module is emitted through a laser hole in the top surface of the shell to form a light cone with the taper theta of 2-3 degrees and the height H of 2-500 cm.

The working process of the sitting posture reminding instrument is as follows:

presetting threshold height and holding time of a light cone of a TOF laser ranging module (for example, the threshold height is set to be 30cm, the holding time is 5s, namely when a foreign matter enters the light cone and the distance from the reminding instrument is less than 30cm, and the state holding time exceeds 5s, a reminding function is triggered), placing a sitting posture reminding instrument at a proper position (position close to a chest) of a desk, seating a user, and starting a working mode of the sitting posture reminding instrument; under the working mode, the TOF laser ranging module transmits a laser which does not harm human bodies (particularly eyes), and detects the situation right above the sitting posture reminder in real time; when the micro processing unit MCU analyzes that the head, neck, chest or shoulder of the user enters the threshold height range of the light cone (for example, the minimum distance between the head, neck, chest or shoulder of the user and the reminder is less than 30 cm), and the state is kept at 5s or above, the prompting module generates a prompting signal to prompt and prompt, and the prompting signal can be a voice prompt (for example, voice broadcast: please pay attention to sitting posture), a vibration prompt (for example, vibration of a vibrator), and a light prompt (for example, a prompting lamp is lighted and flickers).

Example 3

Most of the existing reminding instruments are directly placed on a desktop, but users or surrounding personnel can move the positions of the reminding instruments in an intentional or unintentional process, for example, the users or the surrounding personnel collide the desk to make the reminding instruments fall off.

Therefore, the embodiment is also provided with a mounting base used for being mounted on a carrier in a matching way, and the carrier comprises places for a user to write and learn, such as a learning table, a desk, an office table and the like; the bottom of the shell is provided with an installation groove, and the size and the shape of the installation groove are matched with those of the installation base.

Preferably, the mounting base is adsorbed in the mounting groove at the bottom of the shell in a magnetic adsorption mode.

When the reminder is used, the mounting base is pre-mounted on the carrier, then the reminder is mounted on the mounting base, and the mounting base is clamped in the mounting groove at the bottom of the reminder; because installation base card is in the mounting groove, remind the appearance to fix in installation base position department, touch down to remind the appearance or collide the desk condition at carelessness under, remind the appearance to hardly produce on the desktop and remove, more be difficult for dropping from the desktop.

Example 4

In this embodiment, the prompt module includes speaker, vibrator, suggestion lamp area, speaker, vibrator, suggestion lamp area adopt conventional device can, and speaker, vibrator, suggestion lamp area are equallyd divide and are connected with microprocessing unit MCU electricity respectively.

When the sitting posture adjusting lamp is used, when the head, the neck, the chest or the shoulders of a user enter the threshold height range of the light cone and last for a certain time, the micro-processing unit MCU sends control signals to the loudspeaker, the vibrator and the prompting lamp strip respectively, the loudspeaker gives out a voice prompt of 'please notice the sitting posture', the vibrator generates vibration, the light of the prompting lamp strip is lightened, and the user is reminded to adjust the sitting posture from multiple aspects of voice, vibration, light and the like. In addition, the loudspeaker, the vibrator and the prompting lamp strip can be selected alternatively or in combination, the volume of the loudspeaker, the vibration intensity of the vibrator, the brightness and the color of the prompting lamp strip and the like can be set individually.

Claims (4)

1. The utility model provides a but appearance is reminded to position of sitting of automatic awakening and dormancy, includes casing (1), its characterized in that: a micro processing unit MCU, a detection module for detecting sitting postures, an infrared human body induction module (8) for near-field detection and a prompt module for prompting the sitting postures are arranged in the shell (1), and the micro processing unit MCU is respectively in signal connection with the detection module, the infrared human body induction module (8) and the prompt module; the top surface of the shell (1) is provided with a Fresnel mirror (3), and human body infrared jitter signals are refracted by the Fresnel mirror (3) and then are emitted into an infrared human body induction module (8) in the shell (1).

2. The sitting posture reminder capable of automatically waking up and sleeping as claimed in claim 1, wherein: the detection module is a laser ranging module (7), and the laser ranging module (7) adopts a TOF laser ranging module.

3. The sitting posture reminder capable of automatically waking up and sleeping as claimed in claim 2, wherein: the TOF laser ranging module is a TOF laser ranging module with the model of VL53L0X or VL53L 1X.

4. The sitting posture reminder capable of automatically waking up and sleeping as claimed in claim 2, wherein: laser emitted by the TOF laser ranging module is emitted through a laser hole (2) on the top surface of the shell (1) to form a light cone with the taper theta of 2-3 degrees and the height H of 2-500 cm.

Images