Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

System and method for measuring time flight distance of time code

A technology of time coding and flight distance, applied in the computer field, which can solve the problems of low frame rate, interference, error, etc.

Active Publication Date: 2019-12-24
ORADAR TECH CO LTD
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the frame rate of the system is often limited by the maximum measurement distance. When the system measurement distance reaches 100 meters or even farther, the frame rate is very low, which is difficult to meet the high frame rate requirements of some practical applications.
[0004] In addition, when multiple systems work synchronously in the same space, interference is prone to occur, that is, the receiving end of a certain system will not only receive the optical signal from its own transmitting end, but also receive the optical signals emitted by the transmitting end of other systems. , causing an error

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for measuring time flight distance of time code
  • System and method for measuring time flight distance of time code
  • System and method for measuring time flight distance of time code

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0060] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be used for both fixing and circuit communication.

[0061] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a system and a method for measuring a time flight distance of a time code. The system comprises: a transmitter configured to transmit an optical signal pulse string with a timecode; a collector configured to collect photons in the optical signal pulse string reflected back by an object; and a processing circuit connected to the transmitter and the collector, and configuredto count the photons to form a frame period single-photon counting timing sequence string, and draw a histogram based on the time code and the frame period single-photon counting timing sequence string. According to the system and the method provided by the invention, the transmitter is allowed to transmit the pulse train at a pulse period that is far less than a maximum flight time correspondingto a maximum measurement range, so that the frame rate can be greatly improved.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a system and method for time-coded time flight distance measurement. Background technique [0002] Time of flight (TOF) method calculates the distance of objects by measuring the flight time of light beams in space. Due to its advantages of high precision and large measurement range, it is widely used in consumer electronics, unmanned vehicles, AR / VR and other fields. [0003] Distance measurement systems based on time-of-flight principles, such as time-of-flight depth cameras and lidar systems, often include a light source transmitter and a receiver. Calculate the distance of the object by calculating the time required for the light beam to be reflected and received. When using the direct time-of-flight method for measurement, the transmitter emits a pulsed beam to the target, and the pulsed beam is emitted at a certain frequency. The time interval (pulse period) between ad...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01S17/08G01S7/486G01S7/497G01S7/484
CPCG01S17/08G01S7/4865G01S7/484G01S7/497
Inventor 朱亮陈挚闫敏
Owner ORADAR TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com