CN204480453U

CN204480453U - Infrared sight protectio instrument circuit

Info

Publication number: CN204480453U
Application number: CN201520158430.6U
Authority: CN
Inventors: 李雪晴
Original assignee: 李雪晴
Current assignee: Mortopl Electronics Co., Ltd. is liked in Xuzhou
Priority date: 2015-03-19
Filing date: 2015-03-19
Publication date: 2015-07-15
Anticipated expiration: 2025-03-19

Abstract

A kind of infrared sight protectio instrument circuit, belong to technical field of medical instruments, comprise key circuit module, photosensitive circuit module, range-measuring circuit module, control circuit module, LED cue circuit module, display circuit module and warning circuit module, described photosensitive circuit module, range-measuring circuit module, key circuit module is electrically connected with control circuit module respectively, the voltage signal of the photosensitive circuit module collected and range-measuring circuit module carries out judging and processing by control circuit module, the signal processed is passed to respectively LED cue circuit module, display circuit module, warning circuit module.Existing infrared sight protectio instrument circuit is improved; circuit structure is simplified; while reducing costs; there is the eyesight protector of the weak and timing function of sighting distance, light intensity; there is the feature of the simple and stable performance of structure simultaneously; can be good at allowing user form good being accustomed to eye, have a very big significance in actual use, be easy to promote.

Description

Infrared sight protectio instrument circuit

Technical field

The utility model relates to a kind of eyesight protector, and specifically a kind of infrared sight protectio instrument circuit, belongs to technical field of medical instruments.

Background technology

Society, teen-age visual problems has caused common concern both at home and abroad.The reason of adolescent myopia, except being that heredity causes, also has some to cause by eye custom.

At present along with the continuous quickening of rhythm of life, increasingly increasing the weight of of students in middle and primary schools' learning tasks, the fault of add used by students during reading, writing, the quantity of A nearsighted person is in the trend significantly risen.

22.78% is reached according to national authority department statistics whole nation pupil's rate of myopia, middle school student are 55.22%, high school student is 77.34%, university student is 76.74%, once suffer from myopia, spectacles will be accompanied all the life, bring great inconvenience to daily life, even can affect the employment in future of child.

Along with the increase of myopic degree, eyes need to change in time, some patients have selected operative treatment, therefore myopia makes people subject the burden of spirit and life, in order to pre-myopia prevention, personages of various circles of society make positive effort and explore, human hair is had to understand posture-correcting pen, Nearsightedness-preventing pen, in order to improve and recover eyesight, market is sold and has a nurse, near-sighted glasses, medical circle also once carried out operative treatment for different patient, and some product above or methods for the treatment of are the measures just taked after having suffered from myopia, and some products in use have significant limitation.

If a kind of eyesight protector can be provided; remind user to keep correct reading & writing posture, avoid all the life suffering from myopia, be not only applicable to twenty-twenty student; there is the student of different myopia to have the effect correcting eyesight to patient again, deepen to prevent myopic degree.

Summary of the invention

For above-mentioned prior art Problems existing, the utility model provides a kind of infrared sight protectio instrument circuit, stable performance, and reliable operation, cost is low, easy to operate.

To achieve these goals, the technical solution adopted in the utility model is: a kind of infrared sight protectio instrument circuit, comprise key circuit module, photosensitive circuit module, range-measuring circuit module, control circuit module, LED cue circuit module, display circuit module and warning circuit module, described photosensitive circuit module, range-measuring circuit module, key circuit module is electrically connected with control circuit module respectively, the voltage signal of the photosensitive circuit module collected and range-measuring circuit module carries out judging and processing by control circuit module, the signal processed is passed to respectively LED cue circuit module, display circuit module, warning circuit module.

Control circuit module comprises chip U1, resistance R1, electric capacity C1, C2, C3, crystal oscillator Y, the pin one of described chip U1, pin two, pin 3, the pin one 2 of pin 4 difference correspondence and display circuit module chips U3, pin 9, pin 8, pin 6 connects, the pin 9 of chip U1 respectively with the negative pole of electric capacity C1, one end of resistance R1 connects, the positive pole of electric capacity C1 is connected with power supply, the other end of resistance R1 respectively with one end of electric capacity C2, one end of electric capacity C3 connects, the other end of electric capacity C2 respectively with one end of crystal oscillator Y, the pin one 8 of chip U1 connects, the other end of electric capacity C3 respectively with the other end of crystal oscillator Y, the pin one 9 of chip U1 connects, the pin two 0 of chip U1 is connected rear ground connection with the other end of resistance R1, pin two 2 and the warning circuit model calling of chip U1, pin two 3 and the range-measuring circuit model calling of chip U1, the pin two 5,27 of chip U1 respectively with photosensitive circuit model calling, pin two 8 and the LED cue circuit model calling of chip U1, the pin 31 of chip U1 is connected with power supply, and the pin 32 of chip U1, pin 33, pin 34, pin 35, pin 36, pin 37, pin 38, pin 39, pin 40 respectively corresponding pin 9 with chip RB, pin 8, pin 7, pin 6, pin 5, pin 4, pin 3, pin two, pin one are connected.

Sensor in range-measuring circuit module is photoelectric sensor, and model is E18-D50NK.

The beneficial effects of the utility model are: by by photosensitive circuit module, range-measuring circuit module is electrically connected with control circuit module respectively, the signal processed is passed to LED cue circuit module after being carried out by the voltage signal of the photosensitive circuit module collected and range-measuring circuit module judging and process by control circuit module respectively, display circuit module, warning circuit module, existing infrared sight protectio instrument circuit is improved, circuit structure is simplified, while reducing costs, improve the response speed of system, there is sighting distance, the eyesight protector of the weak and timing function of light intensity, there is the feature of the simple and stable performance of structure simultaneously, can be good at allowing user form good being accustomed to eye, have a very big significance in actual use, be easy to promote.

Accompanying drawing explanation

Fig. 1 is electric theory diagram of the present utility model;

Fig. 2 is the circuit theory diagrams of control circuit module in Fig. 1;

Fig. 3 is the circuit theory diagrams of photosensitive circuit module in Fig. 1;

Fig. 4 is the circuit theory diagrams of LED cue circuit module in Fig. 1;

Fig. 5 is the circuit theory diagrams of display circuit module in Fig. 1;

Fig. 6 is the circuit theory diagrams of range-measuring circuit module in Fig. 1;

Fig. 7 is the circuit theory diagrams of warning circuit module in Fig. 1.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, a kind of infrared sight protectio instrument circuit, comprise key circuit module, photosensitive circuit module, range-measuring circuit module, control circuit module, LED cue circuit module, display circuit module and warning circuit module, described photosensitive circuit module, range-measuring circuit module, key circuit module is electrically connected with control circuit module respectively, the voltage signal of the photosensitive circuit module collected and range-measuring circuit module carries out judging and processing by control circuit module, the signal processed is passed to respectively LED cue circuit module, display circuit module, warning circuit module.

As shown in Figures 2 to 7, control circuit module comprises chip U1, resistance R1, electric capacity C1, C2, C3, crystal oscillator Y, the pin one of described chip U1, pin two, pin 3, the pin one 2 of pin 4 difference correspondence and display circuit module chips U3, pin 9, pin 8, pin 6 connects, the pin 9 of chip U1 respectively with the negative pole of electric capacity C1, one end of resistance R1 connects, the positive pole of electric capacity C1 is connected with power supply, the other end of resistance R1 respectively with one end of electric capacity C2, one end of electric capacity C3 connects, the other end of electric capacity C2 respectively with one end of crystal oscillator Y, the pin one 8 of chip U1 connects, the other end of electric capacity C3 respectively with the other end of crystal oscillator Y, the pin one 9 of chip U1 connects, the pin two 0 of chip U1 is connected rear ground connection with the other end of resistance R1, pin two 2 and the warning circuit model calling of chip U1, pin two 3 and the range-measuring circuit model calling of chip U1, the pin two 5,27 of chip U1 respectively with photosensitive circuit model calling, pin two 8 and the LED cue circuit model calling of chip U1, the pin 31 of chip U1 is connected with power supply, and the pin 32 of chip U1, pin 33, pin 34, pin 35, pin 36, pin 37, pin 38, pin 39, pin 40 respectively corresponding pin 9 with chip RB, pin 8, pin 7, pin 6, pin 5, pin 4, pin 3, pin two, pin one are connected.

Sensor in range-measuring circuit module is photoelectric sensor, model is E18-D50NK, this sensor has that detection range is far away, little by visible ray interference, low price, be easy to assembling, the feature such as easy to use, numerous occasion such as can be widely used in robot obstacle-avoiding, streamline is reckoned by the piece.

In this infrared sight protectio instrument circuit, the function of photosensitive circuit module detects light intensity, the function of range-measuring circuit module detects the sighting distance of user, and the chip U1 of control circuit module is undertaken judging and processing by the voltage signal of photosensitive circuit module, range-measuring circuit module by what collect respectively;

Photosensitive circuit module utilizes the change of photosensitive resistance and resistance to carry out dividing potential drop, the magnitude of voltage obtained carries out voltage compare to LM393, the adjustment of light limit value can be realized by 10k Ω adjustable resistance, high light line was responded in two photoresistance setting, decreased light was responded in a setting, signal was given single-chip microcomputer process.

Range-measuring circuit module adopts the sighting distance of E18-D50NK sensor to user to detect, E18-D50NK sensor is a kind of photoelectric sensor integrating launching and receiving, adopt 3 lead packages, in range-measuring circuit, E18-D50NK sensor is connected with single-chip microcomputer, reads the sighting distance value of user.

First single-chip microcomputer STC89C51 in control circuit module carries out initialization operation to relevant parameters, then carry out intensity of illumination judgement, if intensity of illumination is crossed strong or excessively weak, system will be reported to the police, if do not reach given national normal value, then timing portion is judged.If timing reaches 45 minutes, just report to the police, if timing does not reach 45 minutes, then ranging unit is judged; If record the distance that distance is less than setting, just report to the police, if record distance to be greater than setpoint distance, then return the judgement re-starting intensity of illumination.

This circuit cannot embody the concept of " simultaneously ", so the order of not fixing range finding, arrangement that is photosensitive, timing three judgement.

In the design of infrared sight protectio instrument circuit; core processor selects STC89C51 single-chip microcomputer; E18-D50NK sensor infrared distance measurement selects photo-electric; a potentiometer is had to regulate distance of reaction bottom infrared distance measurement; distance range is at 0 ~ 80cm, and when sighting distance is less than the distance regulating setting, the hummer in warning circuit rings; light emitting diode fast blink simultaneously in LED circuit is reported to the police, and user so just can be pointed out to note posture.The quality of light is also inseparable with sight protectio, and when light is crossed by force or crossed weak, system equally also can be reported to the police; Charactron is used for displaying time, and when the time arrives 45 minutes of setting, charactron and light emitting diode glimmer simultaneously, and hummer sends the chimes of doom dripped, and now pushes button and can have a rest, prevent excess eye-using; At the end of rest, then this time system of pushing button just can restart work, reaches the effect protecting eyes.

Claims

1. one kind infrared sight protectio instrument circuit, it is characterized in that, comprise key circuit module, photosensitive circuit module, range-measuring circuit module, control circuit module, LED cue circuit module, display circuit module and warning circuit module, described photosensitive circuit module, range-measuring circuit module, key circuit module is electrically connected with control circuit module respectively, the voltage signal of the photosensitive circuit module collected and range-measuring circuit module carries out judging and processing by control circuit module, the signal processed is passed to respectively LED cue circuit module, display circuit module, warning circuit module.

2. infrared sight protectio instrument circuit according to claim 1, is characterized in that, described control circuit module comprises chip U1, resistance R1, electric capacity C1, C2, C3, crystal oscillator Y, the pin one of described chip U1, pin two, pin 3, the pin one 2 of pin 4 difference correspondence and display circuit module chips U3, pin 9, pin 8, pin 6 connects, the pin 9 of chip U1 respectively with the negative pole of electric capacity C1, one end of resistance R1 connects, the positive pole of electric capacity C1 is connected with power supply, the other end of resistance R1 respectively with one end of electric capacity C2, one end of electric capacity C3 connects, the other end of electric capacity C2 respectively with one end of crystal oscillator Y, the pin one 8 of chip U1 connects, the other end of electric capacity C3 respectively with the other end of crystal oscillator Y, the pin one 9 of chip U1 connects, the pin two 0 of chip U1 is connected rear ground connection with the other end of resistance R1, pin two 2 and the warning circuit model calling of chip U1, pin two 3 and the range-measuring circuit model calling of chip U1, the pin two 5,27 of chip U1 respectively with photosensitive circuit model calling, pin two 8 and the LED cue circuit model calling of chip U1, the pin 31 of chip U1 is connected with power supply, and the pin 32 of chip U1, pin 33, pin 34, pin 35, pin 36, pin 37, pin 38, pin 39, pin 40 respectively corresponding pin 9 with chip RB, pin 8, pin 7, pin 6, pin 5, pin 4, pin 3, pin two, pin one are connected.

3. infrared sight protectio instrument circuit according to claim 1, is characterized in that, the sensor in described range-measuring circuit module is photoelectric sensor, and model is E18-D50NK.