CN2775761Y - Alarm for preventing short sightedness and humpback gesture for pupil - Google Patents
Alarm for preventing short sightedness and humpback gesture for pupil Download PDFInfo
- Publication number
- CN2775761Y CN2775761Y CN 200520023382 CN200520023382U CN2775761Y CN 2775761 Y CN2775761 Y CN 2775761Y CN 200520023382 CN200520023382 CN 200520023382 CN 200520023382 U CN200520023382 U CN 200520023382U CN 2775761 Y CN2775761 Y CN 2775761Y
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Abstract
The utility model relates to an alarm for preventing myopia and sitting gestures of humpback for students, which belongs to the technical field of a signal control. The utility model is used for solving the alarm problem of the sitting gestures which are not correct. The utility model has the technical scheme that the utility model is provided with a body position switch K and an alarm circuit, wherein switching-on and switching-off of the alarm circuit are controlled by the body position switch; the alarm is composed of a music chip IC1, a capacitor C2, a triode T and a loudspeaker SP, wherein the signal output terminal D/P of the music chip IC1 is connected with a base electrode of the triode T by the capacitor C2; the collector load of the triode T is the loudspeaker SP; the body position switch is arranged in series in a power supply return circuit of a power supply E and the music chip IC1; a resistor R2 is a bias resistance of the triode. The utility model can send out warning signals when the sitting gestures of the students outstrip regulation angles in order to remind the students to rectify the sitting gestures consciously. Besides sound signals, the alarm signals also use a vibration alarm, or a light alarm or other signals which can arouse feelings.
Description
Technical field
The utility model relates to a kind of myopia of student and bow-backed sitting posture alarm of preventing, and belongs to the signal controlling technical field.
Background technology
The pupil usually likes crouching down on the table when reading and writing, so that influence the normal development of vertebrae.And because body gesture is improper, eyes and books hypotelorism if things go on like this, also cause hypometropia.The pupil listens class hour formal, because teacher's strict demand is arranged, can be prevented at any time, but if no supervision, incorrect body gesture usually can not in time be corrected, and one-tenth custom of a specified duration causes hunchback or hypometropia.And the sitting posture that requires the head of a family or teacher to supervise the pupil constantly also is unpractical.
Summary of the invention
Problem to be solved in the utility model provides a kind of prevention myopia of student of wearing with oneself and bow-backed sitting posture alarm, and it can detect student's sitting posture at any time, when posture exceeds allowed band, promptly sends alerting signal, is corrected.
Problem described in the utility model realizes in the following manner:
A kind of myopia of student and bow-backed sitting posture alarm of preventing, it is provided with a body position switches K and a warning circuit, the break-make of body position switches control alarm circuit, described alarm is by Music Clip IC1, capacitor C 2, triode T and loudspeaker SP form, wherein, the signal output part D/P of Music Clip IC1 is connected in the base stage of triode T through capacitor C 2, the collector load of triode T is loudspeaker SP, body position switches is serially connected in the current supply circuit of power supply E and Music Clip IC1, resistance R 2 is the biasing resistor of triode, resistance one is terminated at transistor base, other end ground connection.
Above-mentioned prevention myopia of student and bow-backed sitting posture alarm are added with delay circuit between described body position switches K and warning circuit, delay circuit is composed in series by resistance R 1 and capacitor C 1, and the series connection point of resistance R 1 and capacitor C 1 is connected to the trigger end of Music Clip IC1.
Above-mentioned prevention myopia of student and bow-backed sitting posture alarm, described body position switches K adopts mercury cut-off.
The utility model utilizes warning circuit of body position switches control, during use, will be suspended on the neck by its product of making, and it will tilt and tilt with health.When body position switches monitors sitting posture of student above predetermined angular, just send signal, make alarm equipment alarm.Alerting signal also can adopt vibration or light to report to the police, or other can cause the signal of sensation except that voice signal.
The utility model is described in further detail below in conjunction with accompanying drawing:
Description of drawings
Fig. 1 is an electrical schematic diagram of the present utility model.
Each label is among the figure: body position switches K, power supply E, resistance R 1, resistance R 2, capacitor C 1, capacitor C 2, Music Clip IC1, triode T.
Embodiment
Basic comprising of the present utility model is body position switches K, power supply E and warning circuit, and warning circuit is used to produce alerting signal.When body position switches was connected, warning circuit was just started working.Trigger and report to the police in order to prevent the accidental inclination of health, add delay circuit and can prevent that the short time position is not just.When body position switches K monitors out the body inclination overshoot,, promptly connect circuit in limited time, send alerting signal by loudspeaker and remind student's correcting sitting postures.The delay time of delay circuit can be selected 30 seconds-5 minutes, regulates R1 and can realize that the resistance of general resistance R 1 is 50K.R2 is an adjustable potentiometer.Capacitor C 1 is 20～50 microfarads, and capacitor C 2 is 0.1～10 microfarad, and Music Clip IC1 can select D9561, HL169B, K9561 for use, or the like; Loudspeaker also can be selected piezoelectric ceramic piece for use; Triode T can select common triode for use.
The mercury cut-off that body position switches adopts, general by top electrode, bottom electrode be encapsulated in the mercury in the housing and form, when housing tilted, mercury was connected upper/lower electrode.
All circuit components all can be assembled in the housing, and the moulding that housing can adopt children to like is suspended on the front, are utility, are ornament again.
Warning circuit also can adopt triode or logical circuit to be barricaded as except that adopting Music Clip, for example, selects two NAND gate circuit for use, is barricaded as the audio alarm circuit.
The utility model design is ingenious, as long as on one's body the student is carried at, promptly be in monitoring state, and correct when sitting posture of student, or when taking off, promptly is in off-state automatically on one's body, and so power consumption is economic, battery serviceable life is its natural holding time no better than.As long as the head of a family supervises the student to wear on one's body.The utility model also can be used for the occasion that other need keep its correct position except that as correcting children's sitting posture.
Claims (3)
1. one kind is prevented myopia of student and bow-backed sitting posture alarm, it is characterized in that, it is provided with a body position switches K and a warning circuit, the break-make of body position switches control alarm circuit, described alarm is by Music Clip IC1, capacitor C 2, triode T and loudspeaker SP form, wherein, the signal output part D/P of Music Clip IC1 is connected in the base stage of triode T through capacitor C 2, the collector load of triode T is loudspeaker SP, body position switches is serially connected in the current supply circuit of power supply E and Music Clip IC1, resistance R 2 is the biasing resistor of triode, and resistance one is terminated at transistor base, other end ground connection.
2. prevention myopia of student according to claim 1 and bow-backed sitting posture alarm, it is characterized in that, between described body position switches K and warning circuit, be added with delay circuit, delay circuit is composed in series by resistance R 1 and capacitor C 1, and the series connection point of resistance R 1 and capacitor C 1 is connected to the trigger end of Music Clip IC1.
3. prevention myopia of student according to claim 1 and 2 and bow-backed sitting posture alarm is characterized in that, described body position switches K adopts mercury cut-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520023382 CN2775761Y (en) | 2005-01-19 | 2005-01-19 | Alarm for preventing short sightedness and humpback gesture for pupil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520023382 CN2775761Y (en) | 2005-01-19 | 2005-01-19 | Alarm for preventing short sightedness and humpback gesture for pupil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2775761Y true CN2775761Y (en) | 2006-04-26 |
Family
ID=36750077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520023382 Expired - Fee Related CN2775761Y (en) | 2005-01-19 | 2005-01-19 | Alarm for preventing short sightedness and humpback gesture for pupil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2775761Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106709263A (en) * | 2017-01-11 | 2017-05-24 | 北京至真互联网技术有限公司 | Sitting posture data recorder for preventing and controlling myopia and data analysis and display method thereof |
| CN108961702A (en) * | 2017-07-05 | 2018-12-07 | 四川省绵竹市晨光制衣有限公司 | A kind of sitting posture monitoring dress ornament |
-
2005
- 2005-01-19 CN CN 200520023382 patent/CN2775761Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106709263A (en) * | 2017-01-11 | 2017-05-24 | 北京至真互联网技术有限公司 | Sitting posture data recorder for preventing and controlling myopia and data analysis and display method thereof |
| CN108961702A (en) * | 2017-07-05 | 2018-12-07 | 四川省绵竹市晨光制衣有限公司 | A kind of sitting posture monitoring dress ornament |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |