CN205594164U - Small -size infrared detection and measuring device - Google Patents
Small -size infrared detection and measuring device Download PDFInfo
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- CN205594164U CN205594164U CN201620436803.6U CN201620436803U CN205594164U CN 205594164 U CN205594164 U CN 205594164U CN 201620436803 U CN201620436803 U CN 201620436803U CN 205594164 U CN205594164 U CN 205594164U
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Abstract
The utility model relates to a small -size infrared detection and measuring device is including driving motor, rotatory part, infrared optical transmission module, electro -optical distance measurment(EDM) module, base, drive belt, bearing, sliding ring and the circuit board surveyed. The electro -optical distance measurment(EDM) mould block base obtain in time -of -flight method distance between small -size infrared detection and measuring device and the testee. Through adopting LED as the light source to because the time -of -flight method measuring distance, the angle requirement that makes infrared optical transmission module and electro -optical distance measurment(EDM) module need not fix makes structural design simple, and occupation space is little, can survey the testee of 15m department moreover.
Description
Technical field
The application relates to a kind of electro-optical distance measurement device, particularly relates to a kind of Minitype infrared detection based on flight time (Time of Flight is called for short TOF) method and measurement apparatus.
Background technology
In prior art, modal optical ranging method is triangle telemetry, mainly uses LASER Light Source, but people or animal eyes are easily caused safety hazard by laser.When using triangulation, calculated distance value precision is uneven, and the measurement to far range increases with angular error, and computed range precision declines to a great extent.In triangle telemetry, need LASER Light Source and range cells are configured with certain angle and distance and the supporting construction being in same plane, thus limit the design of structure so that the volume of range unit is bigger.The device of the most common triangle telemetry, measures apart from little, only 6-7m.
Utility model content
Dangerous for prior art range unit LASER Light Source, device volume is relatively big, and measures apart from limited defect.This application provides a kind of infrared acquisition based on time-of-flight method and measurement apparatus.
To achieve these goals, an aspect according to the application, provide a kind of Minitype infrared detection and measurement apparatus, including driving motor, rotated detection part, infrared light emission module, electro-optical distance measurement module, base, transmission band, bearing, slip ring and circuit board.Wherein, rotated detection part is positioned at above base, motor is driven to be fixed on base, transmission band is placed on motor runner and rotated detection portion perimeter, motor is driven to drive rotated detection part constantly to rotate relative to base by transmission band, slip ring is positioned at rotated detection portion central axes, slip ring one end connects the circuit board of rotated detection partial interior, the other end is connected with external equipment, infrared light emission module, electro-optical distance measurement module are connected with circuit board respectively, and bearing is connected respectively with rotated detection part and base.
Further, infrared light emission module is fixed in rotated detection part, send infrared acquisition light, this infrared acquisition light is reflected after running into testee, the electro-optical distance measurement module being fixed on rotated detection partial interior receives the infrared acquisition light being reflected back, and obtains the distance between Minitype infrared detection and measurement apparatus and testee based on time-of-flight method.
Wherein in an embodiment, infrared light emission module being fixedly installed infrared light supply, infrared light supply is LASER Light Source or is light emitting diode (Light Emitting Diode is called for short LED) light source.
Wherein in an embodiment, infrared light supply be the number of LED, LED be 2,4,6 or 8.
Wherein in an embodiment, electro-optical distance measurement module, by the infrared acquisition light launched by infrared light emission module and the phase contrast of the reflection infrared light received by electro-optical distance measurement module, obtains the distance between Minitype infrared detection and measurement apparatus and testee based on time-of-flight method.
Wherein in an embodiment, the infrared acquisition light light path that described infrared light emission module is sent being provided with infrared light emission lens, these infrared light emission lens are fixed on rotated detection partial interior；Being provided with infrared receiver lens in the reception infrared light light path of electro-optical distance measurement module, these infrared receiver lens are fixed on rotated detection partial interior.
Wherein in an embodiment, infrared light emission lens and infrared optical receiver lens are collecting lens, and infrared light emission lens and infrared optical receiver lens are provided with the bandpass filtering film that centre wavelength is 850nm.
Wherein in an embodiment, electro-optical distance measurement module is fixedly installed range finding chip EPC600, EPC610 or EPC660.
Wherein in an embodiment, electro-optical distance measurement module includes that infrared optical receiving sensor, infrared optical receiving sensor are an independent sensor or are the planar array sensor being made up of multiple sensors that work alone.
Wherein in an embodiment, driving motor is three phase electric machine or direct current generator.
Wherein in an embodiment, on base and centered by rotated detection portion central axes, being fixedly uniformly arranged with photoelectric coded disk, described photoelectric coded disk is for determining the rotated detection part position of rotation relative to described base.
Wherein in an embodiment, Minitype infrared detection and measurement apparatus are for walking robot, sweeping robot, unmanned plane or the intelligent machine mobile device scanning probe to surrounding.
By employing LED as light source, and measure distance based on time-of-flight method so that infrared light emission module and electro-optical distance measurement module need not the angle requirement fixed so that structure design is simple, takes up room little, and can measure the testee at 15m.
Accompanying drawing explanation
Fig. 1 is the detection of the application Minitype infrared and measurement apparatus schematic diagram.
Fig. 2 is the detection of the application Minitype infrared and measurement apparatus overall structure schematic diagram.
Fig. 3 is the detection of the application Minitype infrared and measurement apparatus internal structure schematic diagram.
Fig. 4 is the detection of the application Minitype infrared and measurement apparatus working light path schematic diagram.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined." first ", " second " in the application etc. are for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that the data of so use can be exchanged in the appropriate case, in order to embodiments herein described herein.Describe the application below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The embodiment of the present application provides a kind of Minitype infrared detection and measurement apparatus.
As shown in accompanying drawing 1-4, the detection of this Minitype infrared includes with measurement apparatus:
Rotated detection part 1, rotated detection part 1 has shell, and shell has the loophole making light beam pass through.Rotated detection part 1 is internal is fixedly installed infrared light emission module, and this infrared light emission module is connected with circuit board, has the circuit for infrared light emission module for power supply and control in circuit board.Under in working order, after infrared light emission module receives measurement instruction, the infrared light supply 4 in infrared light emission module is driven under drive circuit agreement, the peak wavelength the first infrared acquisition light at 850nm is sent by the modulation of modulated signal, this the first infrared acquisition light, by the first loophole on rotated detection part enclosure, is irradiated in the environment of outside need detection.When environment has the objects such as barrier, this the first infrared acquisition light is irradiated on object, is reflected by the object, and obtains the second infrared acquisition light, this passes through the second loophole on rotated detection part enclosure through the second infrared acquisition light of object reflection, injects rotated detection partial interior.The electro-optical distance measurement module 5 that this second infrared acquisition light is fixedly set within rotated detection part 1 is received, electro-optical distance measurement module is connected with circuit board, electro-optical distance measurement module receives the second infrared acquisition light, compare with the first infrared acquisition light, obtain the first infrared acquisition light and the phase contrast of the second infrared acquisition light, it is calculated the range information between object in Minitype infrared detection and measurement apparatus and environment based on time-of-flight method (Time of Flight is called for short TOF).Owing to have employed time-of-flight method, the testee at the detection of environment middle-range Minitype infrared and measurement apparatus 15 meters can be detected.It addition, by the frequency controlling modulated signal, the detection range of measurement apparatus further expands.
Base 2, is positioned at below rotated detection part 1, and when Minitype infrared detection and measurement apparatus work, rotated detection part constantly rotates with 360 degree relative to base, and the panorama environment in the range of Minitype infrared detection and measurement apparatus 360 degree is scanned detection.
Driving motor 3, this driving motor body is fixed on below base 2, and armature spindle is by the through hole on base through base, and rotor shaft protrudes from base upper surface.It is fixed with motor runner on the rotor shaft top protruding from base upper surface.This driving motor is direct current generator or is three phase electric machine.
Transmission band, in having resilient circle shape, is placed on motor runner and the periphery of rotated detection part enclosure, is in tight state.Drive motor by motor runner and transmission band, probe portion is rotated and rotates relative to base.
Bearing, is positioned at the center of rotation axle of rotated detection section bottom, and the outer ring of bearing is fixing with base to be connected, and inner ring is fixing with rotated detection part to be connected.
Slip ring, is positioned at the center of rotation axle of rotated detection section bottom, and one end of slip ring is connected with the circuit board of rotated detection partial interior, and the other end contacts with external equipment.Slip ring is for being powered the inner member of rotated detection part, and is spread out of by the range information that rotated detection part obtains.
Wherein, the infrared light supply 4 infraluminescence module being fixedly installed is LASER Light Source or is LED light source.The most in a preferred embodiment, light source is LED light source, and number is 2 or more.In a preferred embodiment, infrared light emission module has 4 infrared LED light sources.
Owing to LED light source has the bigger angle of divergence, diverging light in order to be sent by LED is assembled, rotated detection part is launched with small divergence angle, in a preferred embodiment, also in the light path that LED sends and at rotated detection partial interior, it is provided with infrared light emission lens 6, by optimizing the diameter of infrared light emission lens 6, thickness and radius of curvature, after infrared light emission lens, the angle of divergence of the first infrared acquisition light is reduced to 3 degree or less, and this first infrared acquisition light has certain cross-sectional area.Wherein, infrared light emission lens 6 are collecting lens.
In order to the second infrared acquisition ray-collecting that will be more reflected by the object is to electro-optical distance measurement module, the reception infrared light light path of electro-optical distance measurement module is provided with infrared optical receiver lens 7, this infrared optical receiver lens 7 is collecting lens, is focused in electro-optical distance measurement module by the second infrared acquisition light being reflected by the object back.In a preferred embodiment, infrared optical receiver lens is the two panels collecting lens front and back arranged.
In a preferred embodiment, in order to reduce the interference of ambient light, in an alternate embodiment of the invention, it is both provided with, at infrared light emission lens and infrared optical receiver lens, the bandpass filtering film that infrared light filtering film, preferably centre wavelength are 850nm, wherein carries a width of 44 ± 5nm.
Wherein, being provided with range finding chip in electro-optical distance measurement module, in a preferred embodiment, this range finding chip is EPC600 or for EPC610 or for EPC660.
Wherein, electro-optical distance measurement module 5 includes that infrared optical receiving sensor, infrared optical receiving sensor are an independent sensor or are the planar array sensor being made up of multiple sensors that work alone.In an embodiment wherein, covers disposed on sensor is equipped with the bandpass filtering film that centre wavelength is 850nm.
When the detection of this Minitype infrared works with measurement apparatus, owing to rotated detection part constantly rotates, in order to accurately determine which concrete angle orientation is detected range data be at, determine the rotated detection part position of rotation relative to base, this Minitype infrared detection base with measurement apparatus is additionally provided with photoelectric coded disk.This photoelectric coded disk, centered by rotated detection portion central axes, is uniformly fixedly installed.The projection that this photoelectric coded disk is identical by spacing, arrange with circumferential shapes forms, and described projection is to have the rectangular preiection of certain altitude and width, and one of them is protruding has different width from remaining projection.
Wherein in an embodiment, Minitype infrared detection and measurement apparatus are for walking robot, sweeping robot or unmanned plane, or similar intelligent machine mobile device, the scanning probe to surrounding.
The foregoing is only the preferred embodiment of the application, be not limited to the application, for a person skilled in the art, the application can have various modifications and variations.All within spirit herein and principle, any modification, equivalent substitution and improvement etc. made, within should be included in the protection domain of the application.
Claims (10)
1. Minitype infrared detection and a measurement apparatus, including driving motor, rotated detection part, infrared light emission module, electro-optical distance measurement module, base, transmission band, bearing, slip ring and circuit board；
Wherein, described rotated detection part is positioned at above base, described transmission band is placed on motor runner and rotated detection portion perimeter, motor is driven to drive rotated detection part constantly to rotate relative to base by transmission band, described slip ring is positioned at rotated detection portion central axes, slip ring one end connects the circuit board of rotated detection partial interior, the other end is connected with external equipment, described infrared light emission module, electro-optical distance measurement module are connected with circuit board respectively, and bearing is connected respectively with rotated detection part and base；
It is characterized in that, described infrared light emission module is fixed in rotated detection part, send infrared acquisition light, described infrared acquisition light is reflected after running into testee, the electro-optical distance measurement module being fixed on rotated detection partial interior receives the infrared acquisition light being reflected back, and obtains the distance between the detection of described Minitype infrared and measurement apparatus and testee based on time-of-flight method.
A kind of Minitype infrared detection the most according to claim 1 and measurement apparatus, it is characterised in that be fixedly installed infrared light supply in described infrared light emission module, described infrared light supply is LASER Light Source or is LED light source.
A kind of Minitype infrared detection the most according to claim 2 and measurement apparatus, it is characterised in that described infrared light supply be the number of LED, LED be 2,4 or 6.
A kind of Minitype infrared detection the most according to claim 1 and 2 and measurement apparatus, it is characterized in that, described electro-optical distance measurement module, by the infrared acquisition light launched by infrared light emission module and the phase contrast of the reflection infrared light received by electro-optical distance measurement module, obtains the distance between the detection of described Minitype infrared and measurement apparatus and testee based on time-of-flight method.
A kind of Minitype infrared detection the most according to claim 1 and 2 and measurement apparatus, it is characterized in that, being provided with infrared light emission lens in the infrared acquisition light light path that described infrared light emission module is sent, these infrared light emission lens are fixed on rotated detection partial interior；Being provided with infrared optical receiver lens in the reception infrared light light path of described electro-optical distance measurement module, this infrared optical receiver lens is fixed on rotated detection partial interior.
A kind of Minitype infrared detection the most according to claim 5 and measurement apparatus, it is characterized in that, described infrared light emission lens and infrared optical receiver lens are collecting lens, and it is 850nm bandpass filtering film that described infrared light emission lens and infrared optical receiver lens are provided with centre wavelength.
A kind of Minitype infrared detection the most according to claim 1 and 2 and measurement apparatus, it is characterised in that electro-optical distance measurement module is fixedly installed range finding chip EPC600, EPC610 or EPC660.
A kind of Minitype infrared detection the most according to claim 1 and 2 and measurement apparatus, it is characterized in that, described electro-optical distance measurement module includes that infrared optical receiving sensor, described infrared optical receiving sensor are an independent sensor or are the planar array sensor being made up of multiple sensors that work alone.
A kind of Minitype infrared detection the most according to claim 1 and 2 and measurement apparatus, it is characterized in that, on described base and centered by rotated detection portion central axes, being fixedly uniformly arranged with photoelectric coded disk, described photoelectric coded disk is for determining the rotated detection part position of rotation relative to described base；Described driving motor is three phase electric machine or direct current generator.
A kind of Minitype infrared detection the most according to claim 1 and 2 and measurement apparatus, it is characterized in that, the detection of described Minitype infrared and measurement apparatus are for walking robot, sweeping robot, unmanned plane, or the scanning probe that intelligent machine mobile device is to surrounding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620436803.6U CN205594164U (en) | 2016-05-13 | 2016-05-13 | Small -size infrared detection and measuring device |
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| CN201620436803.6U CN205594164U (en) | 2016-05-13 | 2016-05-13 | Small -size infrared detection and measuring device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772408A (en) * | 2016-12-30 | 2017-05-31 | 北醒（北京）光子科技有限公司 | A kind of solid-state face battle array detection device and detection method |
| CN107238839A (en) * | 2017-07-19 | 2017-10-10 | 北醒（北京）光子科技有限公司 | A kind of infrared acquisition and measurement apparatus |
| CN108072869A (en) * | 2016-11-11 | 2018-05-25 | 燕成祥 | Rotary distance sensing device |
| CN109975781A (en) * | 2019-03-14 | 2019-07-05 | 深兰科技（上海）有限公司 | Laser radar and laser radar control method |
| CN116973889A (en) * | 2023-09-22 | 2023-10-31 | 武汉市品持科技有限公司 | Laser radar |
-
2016
- 2016-05-13 CN CN201620436803.6U patent/CN205594164U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072869A (en) * | 2016-11-11 | 2018-05-25 | 燕成祥 | Rotary distance sensing device |
| CN106772408A (en) * | 2016-12-30 | 2017-05-31 | 北醒（北京）光子科技有限公司 | A kind of solid-state face battle array detection device and detection method |
| CN107238839A (en) * | 2017-07-19 | 2017-10-10 | 北醒（北京）光子科技有限公司 | A kind of infrared acquisition and measurement apparatus |
| CN109975781A (en) * | 2019-03-14 | 2019-07-05 | 深兰科技（上海）有限公司 | Laser radar and laser radar control method |
| CN116973889A (en) * | 2023-09-22 | 2023-10-31 | 武汉市品持科技有限公司 | Laser radar |
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