CN108828635B - Device for quickly positioning small-sized object - Google Patents
Device for quickly positioning small-sized object Download PDFInfo
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- CN108828635B CN108828635B CN201810628669.3A CN201810628669A CN108828635B CN 108828635 B CN108828635 B CN 108828635B CN 201810628669 A CN201810628669 A CN 201810628669A CN 108828635 B CN108828635 B CN 108828635B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/33—Multimode operation in different systems which transmit time stamped messages, e.g. GPS/GLONASS
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
Abstract
The invention discloses a device for quickly positioning small objects, which comprises a shell, a low-frequency oscillation circuit, a detection amplifying circuit, a microphone M1, a loudspeaker SW and a light-emitting diode LED1, wherein the microphone M1, the loudspeaker SW and the light-emitting diode LED1 are embedded on the surface of the shell, and the low-frequency oscillation circuit and the detection amplifying circuit are positioned in the shell; after forgetting the small-sized object, the user sends out a whistle, at the moment, the microphone M1 collects the audio frequency and then sequentially passes through the operational amplifier IC1, the whistle switch chip IC2 and the XOR gate circuit IC3, finally the loudspeaker SW and the light-emitting diode LED1 work to send out a sound-light prompt and continue for a period of time, at the moment, the user can timely determine the position of the small-sized object through the sound-light prompt to finally find the small-sized object; therefore, the invention has small structure and convenient use, and can feed back acousto-optic prompts only by a user making a whistle, so that the user can determine the position of the small object in time.
Description
Technical Field
The invention relates to a positioning device, in particular to a device for quickly positioning a small object.
Background
Since many small articles such as various small tools are available in the home, sometimes one of the people in the home may forget to place the articles in the original position after taking them out for use, and then other people may place them at will in other places, so that it is not easy to find the articles if they are to be used again after a long time, because the articles are not in the original position and because the articles are small in size. There is a need for a device that allows a user to quickly locate such smaller items once they have forgotten their position during use.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a device for quickly positioning small objects, which is small in structure and convenient to use, and can be used for determining the positions of the small objects in time according to feedback acousto-optic prompts by making whistle after the positions of the small objects are forgotten.
In order to achieve the purpose, the invention adopts the technical scheme that: a device for quickly positioning small objects comprises a shell, a low-frequency oscillation circuit, a detection amplifying circuit, a microphone M1, a loudspeaker SW and a light-emitting diode LED1, wherein the microphone M1, the loudspeaker SW and the light-emitting diode LED1 are embedded on the surface of the shell, and the low-frequency oscillation circuit and the detection amplifying circuit are positioned in the shell;
the detection amplifying circuit comprises resistors R1, R2, R3, R4, R5, R6, R7 and R8, capacitors C1, C3 and C4, an electrolytic capacitor C2, an integrated circuit IC1 and an IC2 and a power supply E; wherein the resistor R1 and the microphone M1 are connected in series and then connected between the positive pole of the power supply E and the ground; the resistor R2 is connected between the positive pole of the power supply E and the pin 3 of the integrated circuit IC 1; the resistor R3 is connected between pin 3 of the integrated circuit IC1 and the ground; after the resistor R4 and the capacitor C1 are connected in series, one end of the resistor R4 is connected with the common point of the resistor R1 and the microphone M1, and the other end of the resistor R4 is connected with the pin 2 of the integrated circuit IC 1; the resistor R5 is connected between pins 1 and 2 of the integrated circuit IC 1; the resistor R6 and the capacitor C3 are connected in series and then are connected between pins 1 and 6 of the integrated circuit IC 1; the resistor R7 is connected between pins 6 and 7 of the integrated circuit IC 1; the resistor R8 is connected between pins 2 and 3 of the integrated circuit IC 2; the positive pole of the electrolytic capacitor C2 is connected with the pin 3 of the integrated circuit IC1, and the negative pole is connected with the pin 4 of the integrated circuit IC 1; the capacitor C4 is connected between the pin 7 of the integrated circuit IC1 and the pin 1 of the integrated circuit IC 2; the 4 pin of the integrated circuit IC1 is grounded, the 5 pin is connected with the 3 pin, and the 8 pin is connected with the anode of the power supply E; the pin 6 of the integrated circuit IC2 is connected with the anode of a power supply E, the pin 7 is grounded, and the pin 8 is connected with the pin 1 of the integrated circuit IC 3;
the low-frequency oscillation circuit comprises resistors R9, R10 and R11, an electrolytic capacitor C5, a capacitor C6 and an integrated circuit IC 3; wherein the resistor R9 is connected between pins 1 and 2 of the integrated circuit IC 3; the resistor R10 and the resistor R11 are connected in series and then are connected between the pin 4 of the integrated circuit IC3 and the pin 6 of the integrated circuit IC 3; the positive electrode of the electrolytic capacitor C5 is connected with the pin 1 of the integrated circuit IC3, and the negative electrode is grounded; one end of the capacitor C6 is connected with the common point of the resistors R10 and R11, and the other end is connected with the pin 10 of the integrated circuit IC 3; pins 3 and 5 of the integrated circuit IC3 are connected with pins 9, pins 4 are connected with pins 8, pins 7, pins 12 and pins 13 are grounded, and pin 14 is connected with the anode of a power supply E; the negative pole of the power supply E is grounded, the positive pole of the light-emitting diode LED1 is connected with the pin 10 of the integrated circuit IC3, and the negative pole is connected with the pin 8 of the integrated circuit IC 3; the speaker SW is connected in parallel across the LED 1.
Furthermore, the model of the integrated circuit IC1 is TLC27L2, the model of the integrated circuit IC2 is UM3673, and the microphone M1 is an electret microphone.
Further, the power supply E is a button cell.
Further, the model of the integrated circuit IC3 is CD 4070.
Compared with the prior art, the invention adopts a mode of combining the low-frequency oscillation circuit, the detection amplifying circuit, the microphone M1, the loudspeaker SW and the light-emitting diode LED1, a user sends out a whistle sound after forgetting the small object, at the moment, the microphone M1 collects the audio frequency and then sequentially passes through the operational amplifier IC1, the whistle switch chip IC2 and the XOR gate circuit IC3, finally, the loudspeaker SW and the light-emitting diode LED1 work to send out an acousto-optic prompt for a period of time, at the moment, the user can timely determine the position of the small object through the acousto-optic prompt to finally find the small object; therefore, the invention has small structure and convenient use, and can feed back acousto-optic prompts only by a user making a whistle, so that the user can determine the position of the small object in time.
Drawings
FIG. 1 is a schematic view of the external structure of the present invention;
fig. 2 is a circuit schematic of the present invention.
Detailed Description
The present invention will be further explained below.
As shown in fig. 1 and fig. 2, the present invention includes a casing, a low frequency oscillation circuit, a detection amplifying circuit, a microphone M1, a speaker SW and a light emitting diode LED1, wherein the microphone M1, the speaker SW and the light emitting diode LED1 are embedded on the surface of the casing, and the low frequency oscillation circuit and the detection amplifying circuit are located in the casing;
the detection amplifying circuit comprises resistors R1, R2, R3, R4, R5, R6, R7 and R8, capacitors C1, C3 and C4, an electrolytic capacitor C2, an integrated circuit IC1 and an IC2 and a power supply E; wherein the resistor R1 and the microphone M1 are connected in series and then connected between the positive pole of the power supply E and the ground; the resistor R2 is connected between the positive pole of the power supply E and the pin 3 of the integrated circuit IC 1; the resistor R3 is connected between pin 3 of the integrated circuit IC1 and the ground; after the resistor R4 and the capacitor C1 are connected in series, one end of the resistor R4 is connected with the common point of the resistor R1 and the microphone M1, and the other end of the resistor R4 is connected with the pin 2 of the integrated circuit IC 1; the resistor R5 is connected between pins 1 and 2 of the integrated circuit IC 1; the resistor R6 and the capacitor C3 are connected in series and then are connected between pins 1 and 6 of the integrated circuit IC 1; the resistor R7 is connected between pins 6 and 7 of the integrated circuit IC 1; the resistor R8 is connected between pins 2 and 3 of the integrated circuit IC 2; the positive pole of the electrolytic capacitor C2 is connected with the pin 3 of the integrated circuit IC1, and the negative pole is connected with the pin 4 of the integrated circuit IC 1; the capacitor C4 is connected between the pin 7 of the integrated circuit IC1 and the pin 1 of the integrated circuit IC 2; the 4 pin of the integrated circuit IC1 is grounded, the 5 pin is connected with the 3 pin, and the 8 pin is connected with the anode of the power supply E; the pin 6 of the integrated circuit IC2 is connected with the anode of a power supply E, the pin 7 is grounded, and the pin 8 is connected with the pin 1 of the integrated circuit IC 3;
the low-frequency oscillation circuit comprises resistors R9, R10 and R11, an electrolytic capacitor C5, a capacitor C6 and an integrated circuit IC 3; wherein the resistor R9 is connected between pins 1 and 2 of the integrated circuit IC 3; the resistor R10 and the resistor R11 are connected in series and then are connected between the pin 4 of the integrated circuit IC3 and the pin 6 of the integrated circuit IC 3; the positive electrode of the electrolytic capacitor C5 is connected with the pin 1 of the integrated circuit IC3, and the negative electrode is grounded; one end of the capacitor C6 is connected with the common point of the resistors R10 and R11, and the other end is connected with the pin 10 of the integrated circuit IC 3; pins 3 and 5 of the integrated circuit IC3 are connected with pins 9, pins 4 are connected with pins 8, pins 7, pins 12 and pins 13 are grounded, and pin 14 is connected with the anode of a power supply E; the negative pole of the power supply E is grounded, the positive pole of the light-emitting diode LED1 is connected with the pin 10 of the integrated circuit IC3, and the negative pole is connected with the pin 8 of the integrated circuit IC 3; the speaker SW is connected in parallel across the LED 1.
Furthermore, the model of the integrated circuit IC1 is TLC27L2, the model of the integrated circuit IC2 is UM3673, and the microphone M1 is an electret microphone. The integrated circuit IC2 adopts a whistle switch chip UM3763, and the output state of the switch can be turned over once every time the microphone M1 detects whistle sound, namely, one whistle is the switch closure, and the other whistle is the switch disconnection, and the process is repeated in a circulating way; the microphone M1 employs an electret microphone rather than a conventional piezoelectric microphone because the former is much smaller in volume than the latter and is well suited for mounting on small objects.
Further, the power supply E is a button cell.
Further, the model of the integrated circuit IC3 is CD 4070.
The working engineering of the invention is as follows: before using the small object, the invention is fixed on the small object (such as by a double-sided adhesive tape), then the small object is used, if the small object is not forgotten after use, the invention is taken down from the small object, and the small object is placed at the initial position, if the small object is forgotten and cannot be found, a user can find the small object by sending out a whistle, because the hidden position of the lost small object is various, and some small objects in a wardrobe can be blocked under a sofa cushion, a channel for receiving the whistle can be blocked, so that an amplifying circuit is required to be added before an input end (namely 1 pin) of a whistle switch chip IC2 to amplify the weak whistle, in a detection amplifying circuit, a resistor R1 is used as a microphone M1 to amplify a load, a detected current signal is converted into a voltage signal, and the voltage signal is sent to a 2 pin and a 3 pin of an operational amplification chip IC1 through a capacitor C1, the output of the pin 1 is sent to a pin 5 and a pin 6 of an operational amplifier chip IC1 for two-stage amplification, and finally, the voltage is amplified to about 2V and sent to the input end of a whistle switch chip IC 2. The reason for the operational amplifier to use TLC27L2 rather than the conventional 741 series is to reduce current considerations because each amplifier in TLC27L2 consumes only 10uA of current. The external resistor R8 of the pin 2 and the pin 3 of the whistle switch chip IC2 is adjusted to make the receiving sensitivity of the whistle switch chip IC2 maximum, at this time, the state of the output circuit is inverted once every time a whistle is received, namely, the pin 1 of the whistle switch chip IC2 receives a high level once, so that the pin 8 of the whistle switch chip IC2 outputs a high level, the pin 1 of the XOR gate IC3 receives a high level, the pin 3 of the XOR gate IC3 outputs a high level, at this time, the XOR gate IC3 can be a low-frequency oscillator, when the pin 5 and the pin 9 of the XOR gate IC3 are high levels, the XOR gate of the IC3 is an inverter, the pin 10 thereof outputs a rugged voltage, at this time, the speaker SW is pushed to emit a beep sound, and at the same time, the LED1 flickers, and when the pin 5 and the pin 9 of the XOR gate IC3 are low levels, the XOR gate of the IC3 is an in-phase, the oscillator is not active, the speaker SW is not sounding, and the LED1 is not flashing. Since the 8-pin voltage of the whistle switch chip IC2 can be changed only once by blowing the whistle once, that is, the speaker SW can only sound once by blowing the whistle once. In order to enable the speaker SW and the light emitting diode LED1 to work for a period of time each time when a whistle blows, a delay circuit is arranged, because the pin 8 of the whistle switch chip IC2 is connected with the pin 1 and the pin 2 of the XOR gate IC3, when the pin 8 of the whistle switch chip IC2 outputs a high level, the electrolytic capacitor C5 is charged, at the moment, the pin 8 of the whistle switch chip IC2 returns to a low level, the electrolytic capacitor C5 starts a discharging process for the charged high level, when the voltage of the electrolytic capacitor C5 is high, the pin 3 of the gate IC3 outputs a high level, so that the pin 5 and the pin 9 of the IC3 are ensured to be high, a low-frequency oscillator formed by the XOR gate IC3 works, further, the speaker SW and the light emitting diode LED1 continuously work, after the electrolytic capacitor C5 is discharged, the pin 3 of the XOR gate IC3 outputs a low level, and the pin 5 and the pin 9 of the IC3 are low levels, the low frequency oscillator formed by the exclusive-or gate IC3 stops working, and the delay time is determined by the capacitance of the electrolytic capacitor C5.
In addition, the loudspeaker SW and the light emitting diode LED1 are connected between the pin 10 and the pin 8 of the exclusive-or gate IC3, namely the low-frequency oscillator stops oscillating time, the pin 9 of the exclusive-or gate IC3 is at a low level, the pin 8 and the pin 10 of the exclusive-or gate IC3 have the same voltage, the loudspeaker SW does not sound, and the light emitting diode LED1 does not flicker.
Claims (2)
1. A device for quickly positioning small objects is characterized by comprising a shell, a low-frequency oscillation circuit, a detection amplifying circuit, a microphone M1, a loudspeaker SW and a light-emitting diode LED1, wherein the microphone M1, the loudspeaker SW and the light-emitting diode LED1 are embedded on the surface of the shell, and the low-frequency oscillation circuit and the detection amplifying circuit are positioned in the shell;
the detection amplifying circuit comprises resistors R1, R2, R3, R4, R5, R6, R7 and R8, capacitors C1, C3 and C4, an electrolytic capacitor C2, an integrated circuit IC1 and an IC2 and a power supply E; wherein the resistor R1 and the microphone M1 are connected in series and then connected between the positive pole of the power supply E and the ground; the resistor R2 is connected between the positive pole of the power supply E and the pin 3 of the integrated circuit IC 1; the resistor R3 is connected between pin 3 of the integrated circuit IC1 and the ground; after the resistor R4 and the capacitor C1 are connected in series, one end of the resistor R4 is connected with the common point of the resistor R1 and the microphone M1, and the other end of the resistor R4 is connected with the pin 2 of the integrated circuit IC 1; the resistor R5 is connected between pins 1 and 2 of the integrated circuit IC 1; the resistor R6 and the capacitor C3 are connected in series and then are connected between pins 1 and 6 of the integrated circuit IC 1; the resistor R7 is connected between pins 6 and 7 of the integrated circuit IC 1; the resistor R8 is connected between pins 2 and 3 of the integrated circuit IC 2; the positive pole of the electrolytic capacitor C2 is connected with the pin 3 of the integrated circuit IC1, and the negative pole is connected with the pin 4 of the integrated circuit IC 1; the capacitor C4 is connected between the pin 7 of the integrated circuit IC1 and the pin 1 of the integrated circuit IC 2; the 4 pin of the integrated circuit IC1 is grounded, the 5 pin is connected with the 3 pin, and the 8 pin is connected with the anode of the power supply E; the pin 6 of the integrated circuit IC2 is connected with the anode of a power supply E, the pin 7 is grounded, and the pin 8 is connected with the pin 1 of the integrated circuit IC 3;
the low-frequency oscillation circuit comprises resistors R9, R10 and R11, an electrolytic capacitor C5, a capacitor C6 and an integrated circuit IC 3; wherein the resistor R9 is connected between pins 1 and 2 of the integrated circuit IC 3; the resistor R10 and the resistor R11 are connected in series and then are connected between the pin 4 of the integrated circuit IC3 and the pin 6 of the integrated circuit IC 3; the positive electrode of the electrolytic capacitor C5 is connected with the pin 1 of the integrated circuit IC3, and the negative electrode is grounded; one end of the capacitor C6 is connected with the common point of the resistors R10 and R11, and the other end is connected with the pin 10 of the integrated circuit IC 3; pins 3 and 5 of the integrated circuit IC3 are connected with pins 9, pins 4 are connected with pins 8, pins 7, pins 12 and pins 13 are grounded, and pin 14 is connected with the anode of a power supply E; the negative pole of the power supply E is grounded, the positive pole of the light-emitting diode LED1 is connected with the pin 10 of the integrated circuit IC3, and the negative pole is connected with the pin 8 of the integrated circuit IC 3; the loudspeaker SW is connected in parallel with two ends of the light emitting diode LED 1;
the integrated circuit IC1 is an operational amplifier chip TLC27L2, the integrated circuit IC2 is a whistle switch chip UM3673, the microphone M1 is an electret microphone, and the integrated circuit IC3 is an exclusive-OR gate circuit chip CD 4070.
2. The device for the rapid positioning of small objects according to claim 1, wherein the power source E is a button battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810628669.3A CN108828635B (en) | 2018-06-19 | 2018-06-19 | Device for quickly positioning small-sized object |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810628669.3A CN108828635B (en) | 2018-06-19 | 2018-06-19 | Device for quickly positioning small-sized object |
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| CN108828635A CN108828635A (en) | 2018-11-16 |
| CN108828635B true CN108828635B (en) | 2022-02-18 |
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| CN201810628669.3A Active CN108828635B (en) | 2018-06-19 | 2018-06-19 | Device for quickly positioning small-sized object |
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