CN201251628Y - Electronic guiding and barrier detecting device - Google Patents
Electronic guiding and barrier detecting device Download PDFInfo
- Publication number
- CN201251628Y CN201251628Y CNU2008201631951U CN200820163195U CN201251628Y CN 201251628 Y CN201251628 Y CN 201251628Y CN U2008201631951 U CNU2008201631951 U CN U2008201631951U CN 200820163195 U CN200820163195 U CN 200820163195U CN 201251628 Y CN201251628 Y CN 201251628Y
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Abstract
The utility model relates to an electronic guiding and barrier detecting device which comprises a device body assembled on an attachment; the device body comprises a circuit board; the circuit board is provided with an infrared emission circuit, a signal comparison circuit and an infrared receiver circuit which are matched together; the infrared receiver circuit is provided with a photosensitive dynatron Q1 connected with an infrared receiver probe and a thirdly resistance R3; the comparator of the signal comparison circuit is connected with the photosensitive dynatron Q1, a secondary resistance R2, a load dynatron Q2 and a primary resistance R1; the LED light emitting diodes of the infrared emission circuit is connected with the cathode of the power supply through a fourthly resistance R4. Through the comparison of the comparator in the signal comparison circuit on the enlarged weak signal sent by the infrared emission circuit, if the signal excesses the threshold voltage, power can be increased on the electrical appliance. The electrical guiding and barrier detecting device has the advantages of skilful structure, simple circuit and reliable precision, which can be applicable to the seeing-eye stick, seeing-eye car of guide vehicle to provide a convenient guide tool for the blind and the warehouse workers.
Description
Technical field
The utility model relates to the applied technical field of electron detector, relates in particular to electronic guidance and surveys fault device.
Background technology
Electron detector on the market now, as various blind-guiding sticks, guide vehicle or the Guide vehicle of surveying fault device, its structure generally includes the Circuits System of ultrasonic transmission/reception, rubber bodies, switch and lighting bulb etc., structure is too complicated, cost an arm and a leg, be unfavorable for utilization and extention.Notification number is that the Chinese utility model patent of CN2163557Y discloses the walking stick of detecting obstacles " can take one's bearings and ", and it is made up of walking stick, direction identification circuit, obstacle detection circuit, switch, language single-chip microcomputer, language phonation circuit.Its direction identification circuit is made up of direction sensor and translation circuit.The voltage divider that direction sensor is made up of compass, magnetodiode constitutes.Voltage divider is distributed on the card of compass on 45 ° of ground pipe at interval by 8 magnetosensitives, and direction sensor is horizontally set on the walking stick.It can be as blind person, amblyopia, walk helper that the old man is desirable, but labyrinth like this occur systematic error easily, and because probe uses the more weak appliance component of sensitivity, result of use is relatively poor.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective of present technology, provides a kind of delicate structure, simple, the accurate and reliable electronic guidance of circuit to survey fault device.It can be applied on blind-guiding stick, guide vehicle or the Guide vehicle, the steering tool that facilitates for blind person and warehouseman.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: electronic guidance is surveyed fault device, comprise the device body that is fitted on the attachment, device body includes circuit board, and wherein: circuit board is provided with infrared emission circuit, signal comparator circuit, the infrared receiving circuit that cooperatively interacts; Infrared receiving circuit is provided with phototriode Q1, and three resistance R 3 of phototriode Q1 collector one tunnel through being used for current limliting connects positive source, phototriode Q1 emitter power cathode; Signal comparator circuit is provided with comparer, the comparer negative input end connects phototriode Q1 collector, second resistance R 2 of comparer positive input terminal through being used to become resistance connects positive source and power cathode respectively, comparator output terminal one tunnel is through being used to drive first resistance R, the 1 connection positive source of compensation, another road of comparator output terminal connects load triode Q2 base stage, load triode Q2 emitter connects power cathode through electrical appliance, and load triode Q2 collector connects positive source; The infrared emission circuit is provided with the LED light emitting diode, and LED light emitting diode one end connects the positive source other end and connects power cathode through the 4th resistance R 4.
The technical measures of taking also comprise:
The second above-mentioned resistance R 2 is swept resistance R2, and the sliding end of the swept resistance R2 that it has connects positive source and power cathode respectively.
Above-mentioned device body also comprises the battery case that is fitted with battery, and anode is positive source.
Above-mentioned attachment is blind-guiding stick, guide vehicle or Guide vehicle.
Compared with prior art, the utility model adopts circuit board to be provided with infrared emission circuit, signal comparator circuit, the infrared receiving circuit that cooperatively interacts; Infrared receiving circuit is provided with phototriode Q1 the feeble signal through the emission of infrared emission circuit that is received is compared through the comparer that amplification is transported in the signal comparator circuit, surpasses threshold voltage, can realize powering up electrical appliance.Its delicate structure, circuit are simple, accurately reliable, can be applied on blind-guiding stick, guide vehicle or the Guide vehicle steering tool that facilitates for blind person and warehouseman.
Description of drawings
Fig. 1 is the circuit theory synoptic diagram of the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Figure 1 shows that electronic guidance survey fault device, comprise the device body that is fitted on the attachment, attachment is blind-guiding stick, guide vehicle or Guide vehicle; Or other heads that are used to lead.Device body includes circuit board, and circuit board can be homemade, also can be integrated, and wherein: circuit board is provided with infrared emission circuit, signal comparator circuit, the infrared receiving circuit that cooperatively interacts; The infrared emission circuit is provided with phototriode Q1, and three resistance R 3 of phototriode Q1 collector one tunnel through being used for current limliting connects positive source, phototriode Q1 emitter power cathode; Signal comparator circuit is provided with comparer, the comparer negative input end connects phototriode Q1 collector, second resistance R 2 of comparer positive input terminal through being used to become resistance connects positive source and power cathode respectively, comparator output terminal one tunnel is through being used to drive first resistance R, the 1 connection positive source of compensation, another road of comparator output terminal connects load triode Q2 base stage, load triode Q2 emitter connects power cathode through loudspeaker, and load triode Q2 collector connects positive source; The infrared emission circuit is provided with the LED light emitting diode, and LED light emitting diode one end connects the positive source other end and connects power cathode through the 4th resistance R 4.Scheme is that second resistance R 2 is swept resistance R2 preferably, and the sliding end of the swept resistance R2 that it has connects positive source and power cathode respectively.Utilize the variable characteristic of swept resistance, can adjust the resistance of resistance immediately, thereby accurately determine the threshold voltage of comparer positive input terminal, so that enlarge adaptability of the present utility model.Device body also comprises the battery case that is fitted with battery, and anode is positive source.Consider that attachment mostly is movable, therefore, select battery to be advisable, especially rechargeable battery is for well.1 effect of first resistance R is to prevent the output signal distortion, as the driving compensating action of load triode Q2.Second resistance R 2 becomes the rheostat of resistance as an energy slidable adjustment resistance, the critical working point of control comparer.The 3rd resistance R 3 is for after preventing phototriode Q1 short circuit, also is that ground is arrived in VPP direct short-circuit, and plays metering function.
The utility model course of work: attachment is selected dolly, and the infrared emission probe on the device body that is fitted on the dolly utilizes infrared lamp pearl emission infrared ray, and when running into barrier, infrared receiver probe will be received the infrared ray of reflection; Phototriode Q1 conducting this moment, phototriode Q1 collector low level, the comparer positive input terminal that connects phototriode Q1 collector also is a low level; Since the comparer positive input terminal with just be in low level after the comparer negative input end is compared, so comparator output terminal is low level, cause the load triode Q2 that connects comparator output terminal to turn-off not conducting, no signal output, attachment such as dolly motor do not change, and dolly stops; When clear, infrared receiver probe will can not be received the infrared ray of reflection.This moment, phototriode Q1 ended, comparer positive input terminal high level, and load triode Q2 conducting has signal output, and attachment such as dolly motor add electric operation, moving of car.
Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.
Claims (5)
1, electronic guidance is surveyed fault device, comprises the device body that is fitted on the attachment, and device body includes circuit board, it is characterized in that: described circuit board is provided with infrared emission circuit, signal comparator circuit, the infrared receiving circuit that cooperatively interacts; Described infrared receiving circuit is provided with phototriode Q1, and three resistance R 3 of phototriode Q1 collector one tunnel through being used for current limliting connects positive source, phototriode Q1 emitter power cathode; Described signal comparator circuit is provided with comparer, the comparer negative input end connects phototriode Q1 collector, second resistance R 2 of comparer positive input terminal through being used to become resistance connects positive source and power cathode respectively, comparator output terminal one tunnel is through being used to drive first resistance R, the 1 connection positive source of compensation, another road of comparator output terminal connects load triode Q2 base stage, load triode Q2 emitter connects power cathode through electrical appliance, and load triode Q2 collector connects positive source; Described infrared emission circuit is provided with the LED light emitting diode, and LED light emitting diode one end connects the positive source other end and connects power cathode through the 4th resistance R 4.
2, electronic guidance according to claim 1 is surveyed fault device, it is characterized in that: described second resistance R 2 is swept resistance R2, and the sliding end of the swept resistance R2 that it has connects positive source and power cathode respectively.
3, electronic guidance according to claim 1 and 2 is surveyed fault device, and it is characterized in that: described device body also comprises the battery case that is fitted with battery, and anode is positive source.
4, electronic guidance according to claim 3 is surveyed fault device, and it is characterized in that: described attachment is blind-guiding stick, guide vehicle or Guide vehicle.
5, electronic guidance according to claim 3 is surveyed fault device, and it is characterized in that: described electrical appliance is loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201631951U CN201251628Y (en) | 2008-08-21 | 2008-08-21 | Electronic guiding and barrier detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201631951U CN201251628Y (en) | 2008-08-21 | 2008-08-21 | Electronic guiding and barrier detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201251628Y true CN201251628Y (en) | 2009-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201631951U Expired - Fee Related CN201251628Y (en) | 2008-08-21 | 2008-08-21 | Electronic guiding and barrier detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201251628Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098366A (en) * | 2010-12-02 | 2011-06-15 | 深圳桑菲消费通信有限公司 | Infrared blind guiding mobile phone |
| CN103655131A (en) * | 2013-12-03 | 2014-03-26 | 大连大学 | Infrared obstacle detection walking stick |
-
2008
- 2008-08-21 CN CNU2008201631951U patent/CN201251628Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098366A (en) * | 2010-12-02 | 2011-06-15 | 深圳桑菲消费通信有限公司 | Infrared blind guiding mobile phone |
| CN103655131A (en) * | 2013-12-03 | 2014-03-26 | 大连大学 | Infrared obstacle detection walking stick |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20100821 |