CN108761483A - A kind of infrared obstacle avoidance detection module - Google Patents
A kind of infrared obstacle avoidance detection module Download PDFInfo
- Publication number
- CN108761483A CN108761483A CN201810508523.5A CN201810508523A CN108761483A CN 108761483 A CN108761483 A CN 108761483A CN 201810508523 A CN201810508523 A CN 201810508523A CN 108761483 A CN108761483 A CN 108761483A
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- China
- Prior art keywords
- infrared
- comparator
- tube
- power supply
- resistance
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- 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.)
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Classifications
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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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a kind of infrared obstacle avoidance detection module, including comparator, infrared tube, potentiometer each one and light emitting diode, capacitance, resistance it is each several；Infrared tube includes infrared transmitting tube and infrared receiving tube；To power supply VCC, cathode is grounded the anode connection second resistance of infrared transmitting tube；The plus earth of infrared receiving tube, cathode connect 3rd resistor to power supply VCC and are separately connected the positive input terminal and analog signal output mouth of comparator；Two fixing ends of potentiometer are grounded respectively and power supply VCC, and mobile terminal connects the negative input end of comparator；The output of comparator terminates TTL switching signal output ends.The module performance is excellent, stablizes, and anti-interference ability is preferable, is convenient for civilian popularization.
Description
Technical field
The present invention relates to ranging sensing technology more particularly to a kind of infrared obstacle avoidance detection modules.
Background technology
In recent years, also increasingly wider in production, the application of life various aspects with the fast development of ranging technology
It is general.Ranging technology includes laser ranging, microwave radar range, ultrasonic ranging infrared distance measurement technology, wherein laser ranging
To be radiated at target object by laser beam, by emit light beam detection distance, laser ranging be easy by adverse weather conditions, at
This height and maintenance inconvenience；Microwave radar range technology is mainly used in the equipment that military and certain industrial developments use, fee to develop
Generality with costliness, application is poor, it is difficult to be developed on a large scale in commercial market；Ultrasonic ranging was developed in recent years,
But need to be made of particular components, cost of manufacture is also relatively high；Infrared distance measurement technology, since it is easily achieved, and especially
Suitable for short distance object ranging, there are excellent precision and accuracy on short distance object ranging, constitute range-measurement system
Of low cost, function admirable is convenient for civilian popularization.
Invention content
The purpose of the present invention is overcoming defect existing in the prior art, a kind of infrared obstacle avoidance detection module is provided, its property
Can be excellent, stable, anti-interference ability is preferable, is convenient for civilian popularization.
A kind of infrared obstacle avoidance detection module, including comparator, infrared tube, potentiometer each one and light emitting diode, electricity
Appearance, resistance are each several；The infrared tube includes infrared transmitting tube and infrared receiving tube；The anode connection of the infrared transmitting tube
Second resistance to power supply VCC, cathode is grounded；The plus earth of the infrared receiving tube, cathode connect the 3rd resistor to electricity
Source VCC and the positive input terminal and analog signal output mouth for being separately connected the comparator；Two fixations of the potentiometer
End is grounded respectively and power supply VCC, and mobile terminal connects the negative input end of the comparator；The output termination TTL of the comparator is opened
OFF signal output end.
Optionally, the second capacitance is connected in parallel with the infrared receiving tube.
Optionally, the anode connection power supply VCC of the second light emitting diode, cathode connect one end of the 5th resistance, and described the
The other end of five resistance connects the output end of the comparator.
Optionally, one end of the 4th resistance connects power supply VCC, and the other end connects the output end of the comparator.
Optionally, one end of the first capacitance connects power supply VCC, other end ground connection.
Optionally, the anode of the first light emitting diode meets power supply VCC, and cathode connects one end of first resistor, and described first
The other end of resistance is grounded.
The beneficial effects of the invention are as follows：
Infrared obstacle avoidance detection module function admirable provided by the invention, stabilization, strong antijamming capability can be revolved by potentiometer
Button adjusting section detecting distance, effective detecting distance ranging from 2~30cm, and the module convenient for assembly and it is easy to use.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
Fig. 1 is a kind of circuit diagram of infrared obstacle avoidance detection module of one embodiment of the invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the present invention
The mode of applying is explained in detail.
As shown in Figure 1, a kind of infrared obstacle avoidance detection module, including comparator LM393, infrared tube TCRT5000, current potential
Device VR1 each one and light emitting diode, capacitance, resistance are each several；Infrared tube TCRT5000 includes infrared transmitting tube and infrared
Reception pipe；The anode connection second resistance R2 to power supply VCC of infrared transmitting tube, cathode ground connection；The plus earth of infrared receiving tube,
Cathode connects 3rd resistor R3 to power supply VCC and the positive input terminal and analog signal output that are separately connected comparator LM393
Mouth AO；Two fixing ends of potentiometer VR1 are grounded GND (power cathode) and power supply VCC (positive pole, 3~5V) respectively, mobile
The negative input end of end connection comparator LM393；The output termination TTL switching signal output ends DO of comparator LM393；Second capacitance
C2 is connected in parallel with infrared receiving tube；The anode connection power supply VCC of second light emitting diode D2, cathode connect the 5th resistance R5's
One end, the output end of the other end connection comparator LM393 of the 5th resistance R5；One end of 4th resistance R4 connects power supply VCC, separately
One end connects the output end of comparator LM393；One end of first capacitance C1 connects power supply VCC, other end ground connection；First luminous two
The anode of pole pipe D1 meets power supply VCC, and cathode connects one end of first resistor D1, the other end ground connection of first resistor D1.
In one embodiment, when module detects front obstacle signal, the green indicator light D2 on circuit board is lighted,
OUT terminal mouth persistently exports low level signal simultaneously, which is 2~30cm, and detection angles are 35 °, detecting distance
It can be adjusted by potentiometer VR1, potentiometer, detecting distance is adjusted to increase clockwise；Potentiometer, detecting distance are adjusted counterclockwise
It reduces.Infrared tube TCRT5000 is detected by active infrared line reflection, therefore the reflectivity of target and shape are detection ranges
Key, wherein black obstacle detection distance is minimum, and white obstacle detection distance is maximum；Small area obstacle detection distance
Small, large area obstacle detection distance is big.Module output port OUT can directly be connect with single-chip I/O mouth, can also directly be driven
Move a 5V relay；Connection type is：VCC-VCC；GND-GND；OUT-IO.Comparator samples LM393 models, working performance
Stablize.3~5V DC power supplies can be used to be powered module, when the power is turned on, red power supply indicator D1 is lighted.Circuit
Screw hole with 3mm on plate, convenient for fixing, installing by the infrared obstacle avoidance detection module.The circuit board is preferably dimensioned to be
3.2cm*1.4cm。
The present invention the course of work be：After connecting VCC and GND, modular power source indicator light shines, infrared tube TCRT5000
Infrared transmitting tube constantly emit infrared ray, when the infrared ray launched be not reflected back to come or be launched back but intensity not
When enough big, infrared receiving tube is constantly in off state, and the output end of module is high level at this time, and instruction diode D2 locates always
In OFF state；When object to be detected is appeared in detection range, infrared ray is reflected back and intensity is sufficiently large, infrared receiver
Guarantee adequate food and, at this time the output end of module be low level, instruction diode D2 be lit.DO output interfaces can be with single-chip I/O mouth
It is directly connected to, generally connects external interrupt.When infrared transmitting tube infrared signal through reflection received by infrared receiving tube after, it is infrared to connect
The resistance of closed tube can change, and generally be embodied in the form of a voltage on circuit, and the voltage of simulation output port AO
Signal through ADC convert or the circuits shaping such as LM324 after the output result that obtains that treated.Wherein, the change of infrared receiver tube resistor
Change the intensity depending on its infrared signal received, often shows color (influencing reflectivity), shape and the reflection of reflecting surface
Identity distance is with a distance from infrared receiving tube etc..
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (6)
1. a kind of infrared obstacle avoidance detection module, which is characterized in that including comparator, infrared tube, potentiometer each one and shine
Diode, capacitance, resistance are each several；The infrared tube includes infrared transmitting tube and infrared receiving tube；The infrared transmitting tube
Anode connection second resistance to power supply VCC, cathode ground connection；The plus earth of the infrared receiving tube, cathode connection described the
Three resistance are to power supply VCC and are separately connected the positive input terminal and analog signal output mouth of the comparator；The potentiometer
Two fixing ends be grounded respectively and power supply VCC, mobile terminal connects the negative input end of the comparator；The output of the comparator
Terminate TTL switching signal output ends.
2. a kind of infrared obstacle avoidance detection module according to claim 1, which is characterized in that the second capacitance infrared connects with described
Closed tube is connected in parallel.
3. a kind of infrared obstacle avoidance detection module according to claim 1, which is characterized in that the anode of the second light emitting diode
Power supply VCC is connected, cathode connects one end of the 5th resistance, and the other end of the 5th resistance connects the output of the comparator
End.
4. a kind of infrared obstacle avoidance detection module according to claim 3, which is characterized in that one end connection electricity of the 4th resistance
Source VCC, the other end connect the output end of the comparator.
5. a kind of infrared obstacle avoidance detection module according to claim 1, which is characterized in that one end connection electricity of the first capacitance
Source VCC, other end ground connection.
6. a kind of infrared obstacle avoidance detection module according to claim 1, which is characterized in that the anode of the first light emitting diode
Power supply VCC is met, cathode connects one end of first resistor, the other end ground connection of the first resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810508523.5A CN108761483A (en) | 2018-05-24 | 2018-05-24 | A kind of infrared obstacle avoidance detection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810508523.5A CN108761483A (en) | 2018-05-24 | 2018-05-24 | A kind of infrared obstacle avoidance detection module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108761483A true CN108761483A (en) | 2018-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810508523.5A Pending CN108761483A (en) | 2018-05-24 | 2018-05-24 | A kind of infrared obstacle avoidance detection module |
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| Country | Link |
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| CN (1) | CN108761483A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113426651A (en) * | 2021-05-21 | 2021-09-24 | 四川步歌科技有限公司 | Ultrasonic circuit and pain therapeutic apparatus comprising same |
Citations (8)
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|---|---|---|---|---|
| CN201368918Y (en) * | 2009-01-21 | 2009-12-23 | 刘宏昌 | Infrared detector |
| CN205666835U (en) * | 2016-05-23 | 2016-10-26 | 徐州正天科技有限公司 | Photoelectric encoder infrared transmitting tubes light intensity automatic tracking regulator |
| CN106094821A (en) * | 2016-06-28 | 2016-11-09 | 王玉华 | A kind of intelligent carriage control system based on infrared sensor |
| CN205880663U (en) * | 2016-07-27 | 2017-01-11 | 宁夏澍侍信息科技有限公司 | Intelligent handling vehicle |
| CN206057605U (en) * | 2016-08-31 | 2017-03-29 | 江苏钜芯集成电路技术股份有限公司 | A kind of semiconductor chip infrared circuit in place |
| CN106647759A (en) * | 2016-12-28 | 2017-05-10 | 郑州北斗七星通讯科技有限公司 | Industrial robot obstacle detection and control circuit |
| CN206292627U (en) * | 2016-11-23 | 2017-06-30 | 长安大学 | A kind of tracking avoidance intelligent carriage |
| CN107450105A (en) * | 2017-09-01 | 2017-12-08 | 珠海市杰理科技股份有限公司 | Infrared tube detection means and system |
-
2018
- 2018-05-24 CN CN201810508523.5A patent/CN108761483A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201368918Y (en) * | 2009-01-21 | 2009-12-23 | 刘宏昌 | Infrared detector |
| CN205666835U (en) * | 2016-05-23 | 2016-10-26 | 徐州正天科技有限公司 | Photoelectric encoder infrared transmitting tubes light intensity automatic tracking regulator |
| CN106094821A (en) * | 2016-06-28 | 2016-11-09 | 王玉华 | A kind of intelligent carriage control system based on infrared sensor |
| CN205880663U (en) * | 2016-07-27 | 2017-01-11 | 宁夏澍侍信息科技有限公司 | Intelligent handling vehicle |
| CN206057605U (en) * | 2016-08-31 | 2017-03-29 | 江苏钜芯集成电路技术股份有限公司 | A kind of semiconductor chip infrared circuit in place |
| CN206292627U (en) * | 2016-11-23 | 2017-06-30 | 长安大学 | A kind of tracking avoidance intelligent carriage |
| CN106647759A (en) * | 2016-12-28 | 2017-05-10 | 郑州北斗七星通讯科技有限公司 | Industrial robot obstacle detection and control circuit |
| CN107450105A (en) * | 2017-09-01 | 2017-12-08 | 珠海市杰理科技股份有限公司 | Infrared tube detection means and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113426651A (en) * | 2021-05-21 | 2021-09-24 | 四川步歌科技有限公司 | Ultrasonic circuit and pain therapeutic apparatus comprising same |
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Application publication date: 20181106 |
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