CN207544659U - Device for correcting sitting posture of child and preventing myopia - Google Patents

Abstract

The utility model relates to a device for correcting children's sitting posture and preventing myopia. The device for correcting sitting posture and preventing myopia for children is placed on the desktop of a desk and is consistent with the initial position of the writing hand, and includes: a processor module, first, The second ultrasonic sensor, wherein the first ultrasonic sensor is set upwards to detect the distance between the user's head and the sitting posture correction and myopia prevention device; the second ultrasonic sensor is horizontally set to detect the user's body and the sitting posture correction and myopia prevention device The distance of the device; if the distance between the user's head and the sitting posture correction and myopia prevention device and/or the distance between the chest and the sitting posture correction and myopia prevention device is lower or higher than the corresponding preset range, the processor module triggers the alarm circuit to start Alarm; this sitting posture correction and myopia prevention device can automatically detect the distance between the current user's head and body, and send an alarm signal when it is less than or greater than the preset range, prompting children to maintain correct sitting posture.

Description

Children's sitting posture correction and myopia prevention device

technical field

The utility model relates to an intelligent control technology of a single-chip microcomputer and an ultrasonic sensor, in particular to a controller of a device for children's sitting posture correction and myopia prevention.

Background technique

In the process of children's learning and reading, the problems of spinal curvature and myopia caused by incorrect sitting posture are becoming more and more serious. Although parents and teachers can remind them, it is impossible to monitor them in real time. In recent years, some corrective devices have appeared, but there is basically no intelligent control. The correction effect is not obvious.

Utility model content

The purpose of the utility model is to provide a device for children's sitting posture correction and myopia prevention to correct children's inaccurate writing posture.

In order to solve the above-mentioned technical problems, the utility model provides a sitting posture correction and myopia prevention device, which is placed on the desktop of the writing desk, and is consistent with the initial position of the writing hand, and includes: a processor module, and the processor module Connected first and second ultrasonic sensors, wherein the first ultrasonic sensor is arranged inclined upwards to detect the distance between the user's head and the sitting posture correction and myopia prevention device; the second ultrasonic sensor is arranged horizontally to detect the distance between the user's body and the device. The distance of the sitting posture correction and myopia prevention device; if the distance between the user's head and the sitting posture correction and myopia prevention device and/or the distance between the chest and the sitting posture correction and myopia prevention device is lower or higher than the corresponding preset range, the The processor module triggers the alarm circuit to alarm.

Further, the device for correcting sitting posture and preventing myopia also includes: a height-adjustable writing desk controlled by a processor module; the processor module is connected with a setting button. If the distance of the myopia prevention device cannot meet the preset range, the corresponding height of the desk can be controlled by setting buttons.

Further, among the four table legs of the desk, two table legs arranged diagonally are equipped with a lifting mechanism, and the remaining two table legs are provided with guide columns; The lift motors are synchronously controlled by the processor module.

Further, the alarm circuit is a voice alarm circuit, and is suitable for alarming respectively for the distance between the user's head and the sitting posture correction and myopia prevention device, and the distance between the user's body and the sitting posture correction and myopia prevention device, so as to adjust the user's sitting posture.

The beneficial effect of the utility model is that the sitting posture correction and myopia prevention device can automatically detect the distance between the current user's head and body, and send an alarm signal when the distance is less than or greater than the preset range, prompting the child to maintain the correct sitting posture.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the use schematic diagram of sitting posture correction and myopia prevention device of the present utility model;

Fig. 2 is a functional block diagram of the sitting posture correction and myopia prevention device of the present invention.

In the figure: the sitting posture correction and myopia prevention device 1, the first ultrasonic sensor 101, the second ultrasonic sensor 102, the desk 2, the lifting mechanism 201, the guide column 202, the distance L1 between the user's head and the sitting posture correction and myopia prevention device, The distance L2 between the user's body and the sitting posture correction and myopia prevention device.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

As shown in Figure 1, the present embodiment 1 provides a sitting posture correction and myopia prevention device 1, the sitting posture correction and myopia prevention device 1 is placed on the desktop of the desk 2, and is consistent with the initial position of the writing hand, and Including: a processor module, the first and second ultrasonic sensors connected to the processor module, wherein the first ultrasonic sensor 101 is inclined upwards (the angle between the first ultrasonic sensor 101 and the desktop is 60-80 degrees), to detect The distance L1 between the user's head and the sitting posture correction and myopia prevention device; the second ultrasonic sensor 102 is arranged horizontally to detect the distance L2 between the user's body and the sitting posture correction and myopia prevention device; if the user's head and the sitting posture correction And when the distance L1 of the myopia prevention device and/or the distance L2 between the chest and the sitting posture correction and myopia prevention device is lower or higher than the corresponding preset range, the processor module triggers the alarm circuit to give an alarm.

Taking writing with the right hand as an example, the initial position of the sitting posture correction and myopia prevention device is consistent with the writing hand, that is, the initial placement position of the sitting posture correction and myopia prevention device is the same as the distance between the right hand and the lower edge of the table, and the sitting posture correction and myopia prevention device is placed Put it on the right hand position when starting to write, the preset range of the distance between the head and the sitting posture correction and myopia prevention device is 33cm±3cm, and the preset distance between the chest and the sitting posture correction and myopia prevention device is 30cm±3cm, exceeding the above range for alarm reminders.

Wherein, the processor module is for example but not limited to adopt STC12C5A60S2, and the first and second ultrasonic sensors are for example but not limited to adopt HC-SR04.

In order for the height of the desk to meet the needs of use, the sitting posture correction and myopia prevention device also includes: a height-adjustable desk controlled by a processor module; the processor module is connected with a setting button. When initializing the setting, if the user If the distance between the head and the sitting posture correction and myopia prevention device cannot meet the preset range, the corresponding height of the desk can be controlled by setting buttons.

Wherein, the initialization setting is specifically that when the sitting posture correction and myopia prevention device is placed on the desktop of the desk and is consistent with the initial position of the writing hand, after the user adopts a standard posture, the sitting posture correction and myopia prevention device measures The distance between the head and the sitting posture correction and myopia prevention device, if the user is smaller and the distance between the user's head and the sitting posture correction and myopia prevention device is lower than the preset range, then the processor module controls the desk to lower the height ; On the contrary, the desk is raised, so that the height of the desk matches the individual user, which plays an extremely important role in preventing myopia.

As an optional implementation of the lifting of the desk, two of the four legs of the desk are provided with a lifting mechanism 201, and the remaining two legs are provided with a guide column 202; and a lifting mechanism Both use electric push rods, and the lifting motors in the two electric push rods are synchronously controlled by the processor module; wherein the lifting motors are DC motors.

As an optional implementation of the alarm circuit, the alarm circuit is a voice alarm circuit, and is suitable for the distance between the user's head and the sitting posture correction and myopia prevention device, the user's body and the sitting posture correction and myopia prevention device The distance alarms are set to adjust the user's sitting posture.

The voice alarm circuit is, for example but not limited to, a voice module ISD1820.

The user can adjust the corresponding distance of the head and/or the body according to the voice broadcast, thereby achieving the effect of adjusting the sitting posture, thereby achieving the purpose of preventing myopia.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (4)

1. a kind of correcting sitting posture and myopia prevention device, which is characterized in that

The correcting sitting posture and myopia prevention device are placed in the desktop of desk, and consistent with the initial position of writing hand, And including：

Processor module, first, second ultrasonic sensor being connected with the processor module, wherein

First ultrasonic sensor is obliquely installed upwards, to detect the head of user and correcting sitting posture and myopia prevention device Distance；

Second ultrasonic sensor is horizontally disposed with, with detect the body of user and correcting sitting posture and myopia prevention device away from From；

If the head of user and the distance and/or chest of correcting sitting posture and myopia prevention device and correcting sitting posture and related preventive When the distance of device is below or above corresponding preset range, the processor module triggering warning circuit is alarmed.

2. correcting sitting posture according to claim 1 and myopia prevention device, which is characterized in that

The correcting sitting posture and myopia prevention device further include：The adjustable for height desk controlled by processor module；

The processor module is connected with setting button, in Initialize installation, if the head of user and correcting sitting posture and near Distance depending on preventing mean can not meet preset range, then desk is controlled to lift corresponding height by setting button.

3. correcting sitting posture according to claim 2 and myopia prevention device, which is characterized in that

Elevating mechanism is equipped in two table legs diagonally set in four table legs of the desk, is equipped with and leads in remaining two table leg Xiang Zhu；And

Elevating mechanism is using electric pushrod, and the lifting motor in two electric pushrods is by processor module Synchronization Control.

4. correcting sitting posture according to claim 3 and myopia prevention device, which is characterized in that

The warning circuit is voice alarm circuit, and suitable for the head for user and correcting sitting posture and myopia prevention device Distance, user body alarm respectively with the distance of correcting sitting posture and myopia prevention device, to adjust the sitting posture of user.