CN203732073U - Simple electronic compass for visual impairment in children - Google Patents
Simple electronic compass for visual impairment in children Download PDFInfo
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- CN203732073U CN203732073U CN201420041463.8U CN201420041463U CN203732073U CN 203732073 U CN203732073 U CN 203732073U CN 201420041463 U CN201420041463 U CN 201420041463U CN 203732073 U CN203732073 U CN 203732073U
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- resistance
- resistor
- children
- integrated chip
- operational amplifier
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Abstract
The utility model discloses a simple electronic compass for visual impairment in children. The simple electronic compass for visual impairment in children comprises a battery, a Hall effect sensor, an operational amplifier, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor and an eleventh resistor, a first capacitor, a second capacitor and the third capacitor, a triode, a diode, a time-base integrated chip, a button switch, a potentiometer and a loudspeaker, wherein the Hall effect sensor is used for sensing an earth magnetic field and then outputting different signals, the signals are amplified by the operational amplifier and then transmitted to the time-base integrated chip, then a prompt tone is made by the loudspeaker, and the different signals of the Hall effect sensor are used for deciding the tone of the loudspeaker to distinguish directions; moreover, one-key operation is realized and complex operations are avoided, thus the simple electronic compass for visual impairment in children is beneficial for children with visual impairment to use for distinguishing directions in a small range, especially suitable for the children with visual impairment during convalescence to use at home; and moreover, the simple electronic compass for visual impairment in children disclosed by the utility model is simple in circuit structure, few in used electronic components, low in cost, affordable for common people, and beneficial to popularization and promotion.
Description
Technical field
The utility model relates to a kind of medical aid, relates in particular to a kind of easy children ' s vision obstacle digital compass.
Background technology
Digital compass electronic compass in modern technologies condition is widely used as navigation instrument or attitude sensor.Electronic compass is with tradition pointer-type and balance shelf structure compass phase specific energy consumption is low, volume is little, lightweight, precision is high, Miniaturized, its output signal can realize digital demonstration by processing, not only can be used to refer to, its digital signal can directly be delivered to autopilot, controls the manipulation of boats and ships.At present, what widely use is three axle strapdown reluctance type Digital Magnetic Compass, this compass have anti-shake higher with vibration resistance, course precision, interference field is had electronic compensation, can be integrated into and in control loop, carry out the advantages such as data link, thereby be widely used in the fields such as Aeronautics and Astronautics, robot, navigation, vehicular autonomous navigation.And aspect medical science, normally liquid crystal display demonstration of digital compass, this is very hard-to-use for the children of vision disorder, convalescent vision disorder children, is that the utmost point needs this equipment.
Utility model content
The purpose of this utility model provides a kind of easy children ' s vision obstacle digital compass with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises battery, hall effect sensor, operational amplifier, the first resistance to the 11 resistance, the first electric capacity to the three electric capacity, triode, diode, time base integrated chip, pushbutton switch, potentiometer and loudspeaker, the positive pole of described battery is connected with the first end of described pushbutton switch, the negative pole while of described battery and the emitter of described triode, the first end of described the 9th resistance, the first end of described the 3rd electric capacity, the negative pole of base integrated chip when described, the first end of described the second electric capacity, the negative pole of described operational amplifier, the first end of described the 5th resistance, the first end of described potentiometer is connected with the negative pole of described hall effect sensor, the second end while of described pushbutton switch and the first end of described loudspeaker, the positive pole of base integrated chip when described, the replacement end of base integrated chip when described, the positive pole of described operational amplifier, the first end of described the 4th resistance, the second end of described potentiometer and the positive pole of described hall effect sensor are connected, the second end of described loudspeaker is connected with the first end of described the 11 resistance, the second end of described the 11 resistance is connected with the collector of described triode, the base stage of described triode by described the tenth resistance when described base integrated chip output terminal be connected, when described the replacement keyed end of base integrated chip simultaneously with the first end of described the 8th resistance, the positive pole of described diode is connected with the first end of described the 7th resistance, the reset terminal of the base integrated chip replacement end of base integrated chip when described simultaneously when described, the second end of described the second electric capacity and the negative pole of described diode are connected, the second end of described the 7th resistance is connected with described the 6th first end of resistance and the output terminal of described operational amplifier simultaneously, the positive signal input part while of described operational amplifier and the second end of described the 6th resistance, the first end of described the 3rd resistance, the first end of described the first electric capacity is connected with the first end of described the first resistance, the second end of described the first resistance is connected with the first signal output terminal of described hall effect sensor, the inversion signal input end while of described operational amplifier and the second end of described the 5th resistance, the second end of described the first electric capacity, the second end of described the 4th resistance is connected with the first end of described the second resistance, and the second end of described the second resistance is connected with the secondary signal output terminal of described hall effect sensor, and the second end of described the 3rd resistance is connected with the sliding end of described potentiometer.
The beneficial effects of the utility model are:
The utility model is a kind of easy children ' s vision obstacle digital compass, compared with prior art, the utility model can be pointed out direction by the variation of sound, and operating in a key, there is no complicated operation, the children that are beneficial to the very much vision disorder use of taking one's bearings among a small circle, especially for convalescent vision disorder children, use at home, and circuit structure of the present utility model is simple, adopt electronic component few, with low cost, common people can both bear, and are conducive to universal and promote.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1: the utility model comprises battery E, hall effect sensor IC1, operational amplifier IC2, the first resistance R 1 to the 11 resistance R 11, the first capacitor C 1 is to the 3rd capacitor C 3, triode VT, diode VD, time basis set become chip IC 3, pushbutton switch AN, potentiometer RP and loudspeaker BL, the positive pole of battery E is connected with the first end of pushbutton switch AN, the negative pole while of battery E and the emitter of triode VT, the first end of the 9th resistance R 9, the first end of the 3rd capacitor C 3, time basis set become the negative pole of chip IC 3, the first end of the second capacitor C 2, the negative pole of operational amplifier IC2, the first end of the 5th resistance R 5, the first end of potentiometer RP is connected with the negative pole of hall effect sensor IC1, the second end while of pushbutton switch AN and the first end of loudspeaker BL, time basis set become the positive pole of chip IC 3, time basis set become the replacement end of chip IC 3, the positive pole of operational amplifier IC2, the first end of the 4th resistance R 4, the second end of potentiometer RP is connected with the positive pole of hall effect sensor IC1, the second end of loudspeaker BL is connected with the first end of the 11 resistance R 11, the second end of the 11 resistance R 11 is connected with the collector of triode VT, the base stage of triode VT by the tenth resistance R 10 with time basis set become the output terminal of chip IC 3 to be connected, time basis set become chip IC 3 replacement keyed end simultaneously and the first end of the 8th resistance R 8, the positive pole of diode VD is connected with the first end of the 7th resistance R 7, time basis set become chip IC 3 reset terminal simultaneously with time basis set become the replacement end of chip IC 3, the second end of the second capacitor C 2 is connected with the negative pole of diode VD, the second end of the 7th resistance R 7 is connected with the output terminal of operational amplifier IC2 with the first end of the 6th resistance R 6 simultaneously, the positive signal input part while of operational amplifier IC2 and the second end of the 6th resistance R 6, the first end of the 3rd resistance R 3, the first end of the first capacitor C 1 is connected with the first end of the first resistance R 1, and the second end of the first resistance R 1 is connected with the first signal output terminal of hall effect sensor IC1, the inversion signal input end while of operational amplifier IC2 and the second end of the 5th resistance R 5, the second end of the first capacitor C 1, the second end of the 4th resistance R 4 is connected with the first end of the second resistance R 2, and the second end of the second resistance R 2 is connected with the secondary signal output terminal of hall effect sensor IC1, and the second end of the 3rd resistance R 3 is connected with the sliding end of potentiometer RP.
As shown in Figure 1: the utility model mainly relies on hall effect sensor IC1 to realize, model is UGN-3501M in fact, operational amplifier IC2 adopts the operational amplifier that model is UA741, time base integrated chip base integrated chip when to adopt model be NE555, hall effect sensor IC1 exports different signals after sensing magnetic field of the earth, when its signal transfers to after amplifying by operational amplifier IC2, basis set becomes chip IC 3, by loudspeaker BL, send prompt tone again, the tone of the unlike signal decision loudspeaker BL of hall effect sensor IC1 is taken one's bearings.
Claims (1)
1. an easy children ' s vision obstacle digital compass, is characterized in that: comprise battery, hall effect sensor, operational amplifier, the first resistance to the 11 resistance, the first electric capacity to the three electric capacity, triode, diode, time base integrated chip, pushbutton switch, potentiometer and loudspeaker, the positive pole of described battery is connected with the first end of described pushbutton switch, the negative pole while of described battery and the emitter of described triode, the first end of described the 9th resistance, the first end of described the 3rd electric capacity, the negative pole of base integrated chip when described, the first end of described the second electric capacity, the negative pole of described operational amplifier, the first end of described the 5th resistance, the first end of described potentiometer is connected with the negative pole of described hall effect sensor, the second end while of described pushbutton switch and the first end of described loudspeaker, the positive pole of base integrated chip when described, the replacement end of base integrated chip when described, the positive pole of described operational amplifier, the first end of described the 4th resistance, the second end of described potentiometer and the positive pole of described hall effect sensor are connected, the second end of described loudspeaker is connected with the first end of described the 11 resistance, the second end of described the 11 resistance is connected with the collector of described triode, the base stage of described triode by described the tenth resistance when described base integrated chip output terminal be connected, when described the replacement keyed end of base integrated chip simultaneously with the first end of described the 8th resistance, the positive pole of described diode is connected with the first end of described the 7th resistance, the reset terminal of the base integrated chip replacement end of base integrated chip when described simultaneously when described, the second end of described the second electric capacity and the negative pole of described diode are connected, the second end of described the 7th resistance is connected with described the 6th first end of resistance and the output terminal of described operational amplifier simultaneously, the positive signal input part while of described operational amplifier and the second end of described the 6th resistance, the first end of described the 3rd resistance, the first end of described the first electric capacity is connected with the first end of described the first resistance, the second end of described the first resistance is connected with the first signal output terminal of described hall effect sensor, the inversion signal input end while of described operational amplifier and the second end of described the 5th resistance, the second end of described the first electric capacity, the second end of described the 4th resistance is connected with the first end of described the second resistance, and the second end of described the second resistance is connected with the secondary signal output terminal of described hall effect sensor, and the second end of described the 3rd resistance is connected with the sliding end of described potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041463.8U CN203732073U (en) | 2014-01-23 | 2014-01-23 | Simple electronic compass for visual impairment in children |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041463.8U CN203732073U (en) | 2014-01-23 | 2014-01-23 | Simple electronic compass for visual impairment in children |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203732073U true CN203732073U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420041463.8U Expired - Fee Related CN203732073U (en) | 2014-01-23 | 2014-01-23 | Simple electronic compass for visual impairment in children |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203732073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132654A (en) * | 2014-07-28 | 2014-11-05 | 刘惠军 | Novel positioning compass |
-
2014
- 2014-01-23 CN CN201420041463.8U patent/CN203732073U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132654A (en) * | 2014-07-28 | 2014-11-05 | 刘惠军 | Novel positioning compass |
| CN104132654B (en) * | 2014-07-28 | 2016-06-22 | 刘惠军 | A kind of bearing compass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20150123 |
|
| EXPY | Termination of patent right or utility model |