CN2163557Y - Walking stick able to take one's bearings and find fault - Google Patents
Walking stick able to take one's bearings and find fault Download PDFInfo
- Publication number
- CN2163557Y CN2163557Y CN 93223505 CN93223505U CN2163557Y CN 2163557 Y CN2163557 Y CN 2163557Y CN 93223505 CN93223505 CN 93223505 CN 93223505 U CN93223505 U CN 93223505U CN 2163557 Y CN2163557 Y CN 2163557Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- walking stick
- language
- divider
- compass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a walking stick, which can distinguish directions and detect obstacles and is composed of the walking stick, a direction-distinguishing circuit, an obstacle-detecting circuit, a switch 5, a language single-chip microcomputer 7 and a language-sounding circuit, wherein, the direction-distinguishing circuit is composed of a direction sensor and a conversion circuit 3 and the direction sensor is composed of a voltage divider 2 composed of a compass, a magnet sensing diode. The voltage divider is distributed at 45 DEG of intervals on the dial face 8 of the compass through 8 magnet sensing geminate transistors and the direction sensor is horizontally arranged on the walking stick. The utility model is an ideal walking stick for blind persons, persons with amblyopia and aged persons and can distinguish forward directions and detect forward obstacles within two meters and 60 DEG of included angle timely with language for attention.
Description
Can take one's bearings and the walking stick of detecting obstacles belongs to the walk help instrument.
Existing walking stick generally can only be surveyed the front to be had accessiblely, and all is alarm call, easily causes user's fear.Especially still there is not the walking stick of taking one's bearings.
The purpose of this utility model is that design a kind ofly in use can be distinguished direction of advance, and can survey the front again has clog-free walking stick, and the direction prompting still the obstacle prompting all realize with language, give that the people is a kind of comfortablely to be felt naturally.
The utility model is made up of walking stick, direction identification circuit, obstacle detection circuit, switch, language single-chip microcomputer, language phonation circuit.The direction identification circuit is made up of direction sensor and translation circuit.The divider that direction sensor is made up of compass and magnetodiode constitutes, divider is distributed on the card of compass pipe evenly and at intervals by eight magnetosensitives, and each magnetosensitive will be equal to or slightly less than the compass syringe needle end radius of a circle that forms that pivots to the magnetosensitive point radius of a circle that line forms of pipe.Translation circuit is served as by integrated IC1.Every pair of magnetodiode because forward voltage drop is higher, so forward is directly linked on the power supply after connecting, forms a divider by reverse magnetosensitive characteristic series connection.The output of 8 road divider is received respectively on 8 inputs of translation circuit IC1, on four input ports through four the output termination language single-chip microcomputer IC2 of IC1 after the conversion.The obstacle detection circuit is made up of ultrasonic transmitter and ultrasonic receiver.Ultrasonic transmitter is by the p of language single-chip microcomputer IC2
1Delivery outlet, power amplifier IC5, R
3, R
4, transmitting transducer q
2Form.Oscillator signal is realized by the software programming of IC2.The p of the input termination IC2 of IC5
1End, transmitting transducer q
2Be connected on the output of IC5.Ultrasonic receiver is by receiving transducer q
1, frequency-selective amplifier, detecting circuit, shaping circuit form.Receiving transducer q
1With C
3, R
SBe connected on after the series connection on the input of frequency-selective amplifier IC3.By C
4, L forms the frequency-selective network of frequency-selective amplifier.By D
17, R
6, C5 forms detecting circuit, the input of detecting circuit is connected on the output of frequency-selective amplifier, the output of detecting circuit is connected on the input of shaping circuit.Shaping circuit is by IC4, R
7, R
8Form smit circuit and serve as, the output of shaping circuit meets the S of language single-chip microcomputer IC2
4Input.On-off circuit is by K
1, K
2, R
9, R
10Form K
1, K
2The end ground connection that links to each other, K
1, K
2The other end meet the S of IC2 respectively
1, S
2Input.The language phonation circuit is by amplifier T, R
2, loudspeaker Y forms, the input of amplifier T connects the COUT end of language single-chip microcomputer IC2.
The utility model can be distinguished the direction of advancing, Ru Dong, south, west, north, the southeast, southwest, northwest, northeast.And use verbal cue.Barrier in the 2 meters 60 ° of angles in also detectable the place ahead, and in time use verbal cue.When clear, also can send the sound of " excuse me, please get out of the way ".Being particularly suitable for blind person, amblyopia and the elderly uses.
Fig. 1 is the utility model integrated circuit structural representation.
Fig. 2 is the structural representation of direction sensor.
Fig. 3 is the structural representation of walking stick and component installation site.
Embodiment: present embodiment is made up of walking stick 1, direction identification circuit, obstacle detection circuit, switch 5, language single-chip microcomputer 7, language phonation circuit 6.The direction identification circuit is made up of direction sensor and translation circuit 3.The divider 2 that direction sensor is made up of compass, magnetodiode constitutes, divider 2 is distributed on the card 8 of compass on 45 ° of ground at interval pipe by eight magnetosensitives, and each magnetosensitive is put 9 lines to the magnetosensitive of pipe and formed radius of a circle r and will be equal to or slightly less than the compass syringe needle end radius of a circle R that forms that pivots.Direction sensor should be horizontally set on the walking stick.Translation circuit 3 is served as by integrated IC1, and IC1 selects 74LS148 for use.Every couple of magnetodiode D
1, D
2..., D
15, D
16All be connected to form 8 divider by reverse magnetosensitive characteristic series connection.The output of 8 road divider is received respectively on 8 inputs 1～4,10～13 of translation circuit IC1, four tunnel output terminals A after the IC1 conversion.A
1, A
2, GS connects respectively on four input port m1, m2, m3, the m4 of language single-chip microcomputer IC2.When not having the magnetic pointer near magnetodiode, to tube resistor value approximately equal, one 1/2 V of divider output
CHigh level, when magnetic pointer during near certain pair of pipes, upper pipe is (as D
1) just increasing of resistance, the next pipe (D
2) just minimizing of resistance, zero level of divider output.Distinguish the sensing of magnetic pointer thus, pick out the direction of advancing to the greatest extent and by the language single-chip microcomputer.
The obstacle detection circuit is made up of ultrasonic transmitter 4 and ultrasonic receiver 3.Ultrasonic transmitter 4 is by the p of language single-chip microcomputer IC2
1Delivery outlet, power amplifier IC5, R
3, R
4, transmitting transducer q
2Form.IC5 is served as by TWH8751, and input 1 pin of IC5 meets the p of IC2
1, transmitting transducer q
2Serve as by piezoelectric ceramics, be attempted by between output 4 pin and ground of IC5.q
2Be arranged on the top in walking stick column dead ahead.Ultrasonic receiver 3 is by receiving transducer q
1, frequency-selective amplifier, detecting circuit, shaping circuit form.q
1Also select piezoelectric ceramics for use, q
1Be arranged on q
2The below, q
1With C
3, R
SBe connected on after the series connection on the input of frequency-selective amplifier IC3.IC3 selects operational amplifier Lm124 for use, by C
4And be connected on after the L parallel connection between the output and input of IC3, form the frequency-selective network of IC3.By D
17, R
6, C
5Form detecting circuit, with the approximate direct current signal of signal demodulator one-tenth of IC3 output.Shaping circuit is by Lm124 and R
7, R
8The smit circuit of forming is served as.Detecting circuit is connected between frequency-selective amplifier and the shaping circuit.The output of shaping circuit meets the S of language single-chip microcomputer IC2
4End.Language single-chip microcomputer IC2 is served as by mSS μ 001.
On-off circuit is by K
1, K
2, R
9, R
10Form K
1, K
2The end ground connection that links to each other, K
1, K
2The other end meet the S of IC2 respectively
1, S
2Input.When total power switch begins detecting obstacles once opening this walking stick, the prompting of the lang of going forward side by side speech.Work as K
1Except that observing and predicting obstacle, also send the language of " excuse me, please get out of the way " when closed.Work as K
2Except that observing and predicting obstacle, also take one's bearings and it accused in language when closed.Work as K
1, K
2Three kinds of functions all possess when all closed.K
1, K
2Be arranged on the position that hand easily touches.
Language phonation circuit 6 is by amplifier T, R
2, loudspeaker Y forms the COUT end of the input termination IC2 of T.Entire circuit all is contained in the walking stick.
Claims (3)
1, can take one's bearings and the walking stick of detecting obstacles, it is made up of walking stick 1, direction identification circuit, obstacle detection circuit, switch 5, language single-chip microcomputer 7, language phonation circuit 6, it is characterized in that the direction identification circuit is made up of direction sensor and translation circuit 3, the divider 2 that direction sensor is made up of compass, magnetodiode constitutes; Divider 2 is distributed on the card 8 of compass on 45 ° of ground pipe at interval by eight magnetosensitives, each magnetosensitive is put 9 lines to the magnetosensitive of pipe and is formed radius of a circle r and will be equal to or slightly less than the compass syringe needle end radius of a circle R that forms that pivots, and direction sensor should be horizontally set on the walking stick.
2, according to claim 1 can taking one's bearings and the walking stick of detecting obstacles is characterized in that every couple of magnetodiode D of divider 2
1, D
2, D
3, D
4D
15, D
16All be connected in series by reverse magnetosensitive characteristic, form 8 divider, the output of 8 divider connects 8 inputs of translation circuit IC1 respectively, and four outputs of IC1 connect respectively on four input ports of language single-chip microcomputer IC2.
3, according to claim 1 can taking one's bearings and the walking stick of detecting obstacles is characterized in that the obstacle detection circuit is made up of ultrasonic transmitter 4 and ultrasonic receiver 3.Ultrasonic transmitter 4 is by the p of language single-chip microcomputer IC2
1Delivery outlet, power amplifier IC5, R
3, R
4, transmitting transducer q
2Form.The p of the input termination IC2 of IC5
1End, q
2Be attempted by between the output and ground of IC5; q
2Be arranged on the top in the dead ahead of walking stick column, ultrasonic receiver 3 is by receiving transducer q
1, frequency-selective amplifier, detecting circuit, shaping circuit form.q
1With C
3, R
SBe connected on the input of frequency-selective amplifier IC3 C after the series connection
4And be connected on after the L parallel connection between the output and input of IC3, form the frequency-selective network of IC3; By D
17, R
6, C
5Form detecting circuit; Shaping circuit is by IC4, R
7, R
8, the smit circuit formed serves as; Detecting circuit is connected between frequency-selective amplifier and the shaping circuit; q
1Be arranged on q
2The below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223505 CN2163557Y (en) | 1993-09-02 | 1993-09-02 | Walking stick able to take one's bearings and find fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223505 CN2163557Y (en) | 1993-09-02 | 1993-09-02 | Walking stick able to take one's bearings and find fault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2163557Y true CN2163557Y (en) | 1994-05-04 |
Family
ID=33801797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93223505 Expired - Fee Related CN2163557Y (en) | 1993-09-02 | 1993-09-02 | Walking stick able to take one's bearings and find fault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2163557Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105437A (en) * | 2015-09-08 | 2015-12-02 | 赵弘宇 | Anti-tumbling auxiliary mountain climbing device |
| CN106019231A (en) * | 2016-06-19 | 2016-10-12 | 哈尔滨理工大学 | Indoor ultrasonic positioning device |
-
1993
- 1993-09-02 CN CN 93223505 patent/CN2163557Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105437A (en) * | 2015-09-08 | 2015-12-02 | 赵弘宇 | Anti-tumbling auxiliary mountain climbing device |
| CN106019231A (en) * | 2016-06-19 | 2016-10-12 | 哈尔滨理工大学 | Indoor ultrasonic positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhu Yuhong Document name: Notice of termination |
|
| 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 |