CN111487635A - High-precision infrared dynamic infrared ranging system and method - Google Patents
High-precision infrared dynamic infrared ranging system and method Download PDFInfo
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- CN111487635A CN111487635A CN202010394492.2A CN202010394492A CN111487635A CN 111487635 A CN111487635 A CN 111487635A CN 202010394492 A CN202010394492 A CN 202010394492A CN 111487635 A CN111487635 A CN 111487635A
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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
- G01S17/02—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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- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Measurement Of Optical Distance (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a high-precision infrared dynamic infrared ranging system which comprises an infrared ranging unit, an MCU (microprogrammed control unit) and a touch screen control unit, wherein the infrared ranging unit comprises a transmitting end, a receiving end and an analysis unit, the infrared ranging unit is provided with a relative horizontal plane, the transmitting end transmits infrared measuring rays, the infrared measuring rays form a projection line on the relative horizontal plane, the infrared measuring rays form a certain angle with the projection line, the infrared measuring rays form rebound rays after touching an object to be measured, the rebound rays are received by the receiving end and displayed on the receiving end, and the MCU control unit is respectively interacted with the touch screen control unit and the analysis unit. By adopting a triangulation method, the change of the reflectivity of an object, the environmental temperature and the working duration time does not easily influence the distance detection, the measured data is dynamically updated in real time, the accuracy is high, and the measuring efficiency is high. The invention also discloses a high-precision infrared dynamic infrared distance measurement method.
Description
Technical Field
The invention relates to the field of automation, in particular to a high-precision infrared dynamic infrared distance measurement system and method.
Background
At present, with the rapid development of society, more and more sensors are applied to industrial production, and a sensor is a detection device, can sense measured information, and can convert the sensed information into an electric signal or other information in a required form according to a certain rule to be output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like.
However, the application of the existing sensor in distance measurement has the following defects:
in the prior art, the ultrasonic transmitter is controlled by the peripheral circuit to output ultrasonic waves of about 40KHz, the ultrasonic receiving sensor is started at the same time, the ultrasonic waves are reflected after encountering a measured object, the ultrasonic receiving sensor starts to calculate the time difference from transmitting to receiving of the ultrasonic waves after receiving a reflected signal, and the distance of the measured object is calculated through the time difference. In the distance measuring process, the change of the environment temperature and the working duration easily influences the distance detection, the measuring accuracy is low, and the application range is small.
Disclosure of Invention
In order to overcome the defects of the prior art, an object of the present invention is to provide a high-precision infrared dynamic infrared distance measurement system and method, which can solve the problems of low measurement accuracy and small application range.
One of the purposes of the invention is realized by adopting the following technical scheme:
a high-precision infrared dynamic infrared ranging system comprises an infrared ranging unit, an MCU control unit and a touch screen control unit, the infrared distance measuring unit comprises a transmitting end, a receiving end and an analyzing unit, the analyzing unit is respectively interacted with the transmitting end and the receiving end, the infrared distance measuring unit is provided with a relative horizontal plane, the transmitting end emits infrared measuring rays, the infrared measuring rays form a projection line on the relative horizontal plane, the infrared measuring rays form a certain angle with the projection line, the infrared measuring rays form rebound rays after contacting an object to be measured, the rebound rays are received by the receiving terminal and displayed on the receiving terminal, the analysis unit analyzes data and sends the data to the MCU control unit, and the MCU control unit is respectively interacted with the touch screen control unit and the analysis unit.
Further, the infrared measuring ray is 0.05-0.2 degrees to the projection line.
Furthermore, the transmitting end is an infrared light emitting diode, and the receiving end is a position sensitive detector.
Furthermore, the analysis unit is provided with a signal processing circuit, and the signal processing circuit analyzes data and sends the data to the MCU control unit.
Furthermore, the MCU control unit comprises a serial port module and a network port module, and the MCU control unit is communicated with an upper computer through the serial port module or the network port module.
The utility model provides an infrared dynamic infrared range finding method of high accuracy, is applied to infrared dynamic infrared range finding system of high accuracy, includes infrared range finding unit, MCU the control unit and touch-sensitive screen the control unit, infrared range finding unit includes transmitting terminal, receiving terminal and analysis unit, analysis unit respectively with transmitting terminal, receiving terminal are mutual, infrared range finding unit is provided with relative horizontal plane, the transmitting terminal sends infrared determination ray, infrared determination ray is in form the projection line on the relative horizontal plane, include following step:
a preparation and confirmation step: the infrared distance measurement unit confirms the emission angle between the infrared measurement ray and the projection ray;
infrared emission: the transmitting end emits infrared measuring rays, and rebounding rays are formed after the transmitting end touches an object to be measured;
a rebound receiving step: the rebound ray is received by the receiving end and displayed on the receiving end, and the analysis unit forms feedback data;
a signal transmission step: and the feedback data is sent to the MCU control unit, and the MCU control unit decodes, calibrates and displays the data in the touch screen control unit.
Further, a command step is provided before the preparation confirmation step: and the upper computer or the touch screen control unit sends an execution command, and the MCU control unit receives the execution command and executes the next step.
Further, in the rebounding receiving step, the infrared measurement ray and the projection ray form two distance points on the infrared distance measurement unit, the infrared distance measurement unit calculates the distance between the two distance points and converts the distance into a voltage signal, and the feedback data is the voltage signal.
Further, the method also comprises the following data collection steps: and the MCU control unit uploads the measurement result to the upper computer.
Compared with the prior art, the invention has the beneficial effects that:
the infrared distance measurement unit includes transmitting terminal, receiving terminal and analysis unit, the analysis unit respectively with transmitting terminal, receiving terminal are mutual, the infrared distance measurement unit is provided with relative horizontal plane, the transmitting terminal sends infrared survey ray, infrared survey ray is in form the projection line on the relative horizontal plane, infrared survey ray with the projection line is certain angle, infrared survey ray touches and forms the ray of kick-backing after the object that awaits measuring, the ray of kick-backing is received by the receiving terminal and is showing in the receiving terminal, analysis unit analysis data back and send to MCU the control unit, MCU the control unit respectively with touch-sensitive screen the control unit with the analysis unit is mutual. By adopting a triangulation method, the change of the reflectivity of an object, the environmental temperature and the working duration time does not easily influence the distance detection, the measured data is dynamically updated in real time, the accuracy is high, and the measuring efficiency is high.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a block diagram of a preferred embodiment of the high precision dynamic infrared ranging system of the present invention;
FIG. 2 is a signal processing circuit diagram;
FIG. 3 is a schematic view of a ray;
FIG. 4 is a flow chart of a high-precision dynamic infrared ranging system.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-3, a high-precision infrared dynamic infrared distance measuring system includes an infrared distance measuring unit, an MCU control unit and a touch screen control unit, the infrared distance measuring unit comprises a transmitting end, a receiving end and an analyzing unit, the analyzing unit is respectively interacted with the transmitting end and the receiving end, the infrared distance measuring unit is provided with a relative horizontal plane, the transmitting end emits infrared measuring rays, the infrared measuring rays form a projection line on the relative horizontal plane, the infrared measuring rays form a certain angle with the projection line, the infrared measuring rays form rebound rays after contacting an object to be measured, the rebound rays are received by the receiving terminal and displayed on the receiving terminal, the analysis unit analyzes data and sends the data to the MCU control unit, and the MCU control unit is respectively interacted with the touch screen control unit and the analysis unit. By adopting a triangulation method, the change of the reflectivity of an object, the environmental temperature and the working duration time does not easily influence the distance detection, the measured data is dynamically updated in real time, the accuracy is high, and the measuring efficiency is high.
In actual measurement, triangulation, i.e. triangulation of the light beam, is used to calculate the distance, measurement is performed by means of an infrared L ED and a photodetector or PSD (position sensing device). when the light beam is reflected by an object, the reflected light beam will reach the photodetector and form a "spot" on the PSD.
Preferably, the infrared measuring radiation is 0.05 ° to 0.2 ° to the projection line. The infrared measurement ray and the projection ray display two light spots on the PSD to form a triangular loop, the distance between the two light spots is obtained through simple mathematical calculation, and the vertical distance from an object is calculated.
Preferably, the transmitting end is an infrared light emitting diode, and the receiving end is a position sensitive detector. Referring to fig. 2, the analyzing unit is provided with a signal processing circuit, and the signal processing circuit analyzes data and transmits the data to the MCU control unit. The circuitry processes the position of the light spot on the PSD to determine the position (distance) of the reflecting object. It outputs an analog signal that depends on the position of the object in front of the sensor.
Preferably, the MCU control unit comprises a serial port module and a network port module, and the MCU control unit establishes communication with the upper computer through the serial port module or the network port module.
Referring to fig. 4, a high-precision infrared dynamic infrared ranging method applied to a high-precision infrared dynamic infrared ranging system includes an infrared ranging unit, an MCU control unit and a touch screen control unit, where the infrared ranging unit includes a transmitting end, a receiving end and an analyzing unit, the analyzing unit interacts with the transmitting end and the receiving end respectively, the infrared ranging unit is provided with a relative horizontal plane, the transmitting end transmits infrared measurement rays, and the infrared measurement rays form a projection line on the relative horizontal plane, and the method includes the following steps:
a command step: the upper computer or the touch screen control unit sends an execution command, and the MCU control unit receives the execution command and executes the next step;
a preparation and confirmation step: the infrared distance measurement unit confirms the emission angle between the infrared measurement ray and the projection ray;
infrared emission: the transmitting end emits infrared measuring rays, and rebounding rays are formed after the transmitting end touches an object to be measured;
a rebound receiving step: the rebound ray is received by the receiving end and displayed on the receiving end, and the analysis unit forms feedback data; preferably, in the rebounding receiving step, the infrared measurement ray and the projection ray form two distance points on the infrared distance measurement unit, the infrared distance measurement unit calculates the distance between the two distance points and converts the distance into a voltage signal, and the feedback data is the voltage signal.
A signal transmission step: and the feedback data is sent to the MCU control unit, and the MCU control unit decodes, calibrates and displays the data in the touch screen control unit.
A data collection step: and the MCU control unit uploads the measurement result to the upper computer. The MCU control unit is responsible for functions such as signal input, signal processing, data calculation, data output, human-computer interaction, power consumption control, but infrared sensor converts two photoelectric distance information into precision measurement's voltage signal, and then can improve distance measurement's precision, has solved the low problem of degree of accuracy of conventional time measurement distance method.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (9)
1. The utility model provides an infrared dynamic infrared ranging system of high accuracy, includes infrared range unit, MCU the control unit and touch-sensitive screen the control unit, its characterized in that: the infrared distance measurement unit includes transmitting terminal, receiving terminal and analysis unit, the analysis unit respectively with transmitting terminal, receiving terminal are mutual, the infrared distance measurement unit is provided with relative horizontal plane, the transmitting terminal sends infrared survey ray, infrared survey ray is in form the projection line on the relative horizontal plane, infrared survey ray with the projection line is certain angle, infrared survey ray touches and forms the ray of kick-backing after the object that awaits measuring, the ray of kick-backing is received by the receiving terminal and is showing in the receiving terminal, analysis unit analysis data back and send to MCU the control unit, MCU the control unit respectively with touch-sensitive screen the control unit with the analysis unit is mutual.
2. The high accuracy infrared dynamic infrared ranging system of claim 1 further comprising: the infrared measuring ray and the projection ray form a angle of 0.05-0.2 degrees.
3. The high accuracy infrared dynamic infrared ranging system of claim 1 further comprising: the transmitting end is an infrared light emitting diode, and the receiving end is a position sensitive detector.
4. A high accuracy infrared dynamic infrared ranging system as defined in claim 3 wherein: the analysis unit is provided with a signal processing circuit, and the signal processing circuit analyzes data and sends the data to the MCU control unit.
5. The high accuracy infrared dynamic infrared ranging system of claim 1 further comprising: the MCU control unit comprises a serial port module and a network port module, and the MCU control unit is communicated with an upper computer through the serial port module or the network port module.
6. The utility model provides an infrared dynamic infrared range finding method of high accuracy, is applied to infrared dynamic infrared range finding system of high accuracy, includes infrared range finding unit, MCU the control unit and touch-sensitive screen the control unit, infrared range finding unit includes transmitting terminal, receiving terminal and analysis unit, analysis unit respectively with transmitting terminal, receiving terminal are mutual, infrared range finding unit is provided with relative horizontal plane, the transmitting terminal sends the infrared survey ray, the infrared survey ray is in form the projection line on the relative horizontal plane, its characterized in that, include following step:
a preparation and confirmation step: the infrared distance measurement unit confirms the emission angle between the infrared measurement ray and the projection ray;
infrared emission: the transmitting end emits infrared measuring rays, and rebounding rays are formed after the transmitting end touches an object to be measured;
a rebound receiving step: the rebound ray is received by the receiving end and displayed on the receiving end, and the analysis unit forms feedback data;
a signal transmission step: and the feedback data is sent to the MCU control unit, and the MCU control unit decodes, calibrates and displays the data in the touch screen control unit.
7. The high accuracy infrared dynamic infrared ranging method of claim 6, characterized in that: the preparation confirmation step is preceded by a command step of: and the upper computer or the touch screen control unit sends an execution command, and the MCU control unit receives the execution command and executes the next step.
8. The high accuracy infrared dynamic infrared ranging method of claim 6, characterized in that: in the rebound receiving step, two distance points are formed on the infrared distance measuring unit by the infrared measuring rays and the projection rays, the distance between the two distance points is calculated and converted into a voltage signal by the infrared distance measuring unit, and the feedback data is the voltage signal.
9. The method of claim 6, further comprising the step of data collection: and the MCU control unit uploads the measurement result to the upper computer.
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Cited By (1)
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