Unlock instant, AI-driven research and patent intelligence for your innovation.

Indoor robot positioning system

An indoor robot and positioning system technology, applied in the field of indoor robot positioning system, can solve the problems of signal blind area, low positioning accuracy, short time difference, etc., and achieve the effect of high positioning accuracy

Inactive Publication Date: 2016-02-10
FOSHAN NANHAI GUANGDONG TECH UNIV CNC EQUIP COOP INNOVATION INST
View PDF7 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, although indoor robots have a variety of ranging methods to achieve positioning functions, such as infrared ranging and positioning systems, ultrasonic ranging and positioning systems, WIFI and Bluetooth ranging and positioning systems, etc., there are many limiting factors
[0003] In the process of infrared ranging, the surface material, shape, temperature and other factors of obstacles will affect the accuracy of the ranging system, so that the positioning information cannot meet the requirements of the robot operation; in the process of ultrasonic ranging, indoor multipath The effect seriously affects the measurement of the system. At the same time, the time difference used to calculate the distance is extremely short, requiring an extremely precise time measurement device, and the hardware facilities required for trilateral or multilateral positioning calculations also require high costs; WIFI and Bluetooth distance measurement The principle is the same, and the distance measurement method based on signal strength is adopted. The disadvantage of this system is that the positioning accuracy is low, and if the environment is complex, it is easy to produce signal blind spots. Among them, the medium and long-distance signal transmission equipment of Bluetooth is expensive.

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
  • Indoor robot positioning system
  • Indoor robot positioning system
  • Indoor robot positioning system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, the indoor robot positioning system includes an industrial computer module, a PLC module, a positioning module and a mobile module. The positioning module includes RFID readers, RFID tags, wireless networks and robots. RFID tags are used as positioning reference points to cover the entire robot motion plane at equal distances. The RFID readers are placed at the bottom of the robot and connected to the wireless network. As a communication carrier, the RFID tag receives the radio frequency information sent by the RFID reader within 20cm, modulates and decodes the radio frequency information, sends out the stored position information, and realizes feedback. When multiple RFID tags are in the RFID reader When within the recognition range, signal interference will occur between the RFID tags, which may cause the communication between the RFID reader and the RFID tag to fail. Therefore, the number of RFID tags recognized by the RFID reader varies from...

Embodiment 2

[0030] Such as image 3 As shown, the positioning method of the indoor robot of the present invention is as follows: (1) Turn on the device, and each module runs normally; (2) The RFID reader transmits radio frequency information, receives feedback information from the RFID tags around the robot, and transmits it to the industrial computer module; (3) The data processing module checks whether the feedback information transmitted by the RFID reader is legal and determines the distance between the RFID tag sending the feedback information and the robot; (4) The positioning algorithm module obtains the position coordinates of the robot according to the algorithm; (5) Displays Select the target coordinate point in the module; (6) The motion module compares the target coordinate point with the current position coordinate, obtains the displacement distance in the x and y directions, converts it into pulses, and sends it to the PLC module; (7) PLC The module controls the movement of th...

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 discloses an indoor robot positioning system and a positioning method thereof, relating to a positioning system and a positioning method in the telecommunication technical field. The indoor robot positioning system comprises a positioning module, an industrial control computer module, a PLC module and a mobile module, and is used for range finding by the RFID (Radio Frequency Identification) technology. The positioning module is used for obtaining the real time position of a robot; the industrial control computer module comprises host computer software, is a data processing center, and communicates with the positioning module and the PLC module; the PLC module controls a servo motor arranged on the bottom of the robot to move in x and y directions. The RFID technology can guarantee higher positioning accuracy; corresponding industrial control computer module and PLC module make the positioning system more reasonable and effective; through real time positioning of a robot, the robot can execute tasks of navigation, transport, etc. under indoor environments of warehouses, workshops, large-scale department stores, etc.

Description

technical field [0001] The invention relates to a positioning system and a positioning method in the technical field of telecommunications, in particular to an RFID (Radio Frequency Identification, Radio Frequency Identification) indoor positioning system and a positioning method. Background technique [0002] At present, although indoor robots have a variety of ranging methods to achieve positioning functions, such as infrared ranging and positioning systems, ultrasonic ranging and positioning systems, WIFI and Bluetooth ranging and positioning systems, etc., there are many limiting factors. [0003] In the process of infrared ranging, the surface material, shape, temperature and other factors of obstacles will affect the accuracy of the ranging system, so that the positioning information cannot meet the requirements of the robot operation; in the process of ultrasonic ranging, indoor multipath The effect seriously affects the measurement of the system. At the same time, th...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02
CPCG01S5/02
Inventor 谢克庆陈新华
Owner FOSHAN NANHAI GUANGDONG TECH UNIV CNC EQUIP COOP INNOVATION INST