CN203038111U - Indoor robot positioning and navigating system based on RFID - Google Patents

Abstract

The utility model provides an RFID-based indoor robot positioning and navigation system. The adopted technical solutions include RFID positioning subsystem, robot drive module, and portable operating platform. The RFID positioning subsystem obtains the position information of the robot itself and sends it to the robot driving module; the robot driving module receives the operation instructions of the portable operation platform and realizes the motion control of the robot; the portable operation platform receives the user's instruction information and transmits it to the robot driver module. The indoor robot positioning and navigation system based on RFID technology of the utility model takes the RFID indoor positioning technology as the core, the system structure is simple, the cost is not high, the implementation is easy, the operation is convenient, and it is an application platform with good scalability.

Description

An RFID-based indoor robot positioning and navigation system

technical field

The utility model belongs to the technical field of positioning and navigation systems, in particular to an RFID-based positioning and navigation system that can realize autonomous positioning and navigation of indoor robots.

Background technique

RFID (Radio Frequency Identification, radio frequency identification) technology is an automatic identification technology that has emerged in recent years. Different from traditional barcode systems and contact IC cards, radio frequency identification systems use radio frequency methods for non-contact two-way data communication. In order to achieve the purpose of identifying and exchanging data. Compared with other identification systems, radio frequency identification systems have many advantages. With the development and maturity of integrated circuit technology, radio frequency identification technology has a broader market.

The development of mobile computing devices and the advancement of wireless local area network technology have promoted the rapid development of mobile positioning technology. At present, scientists have established many automatic positioning systems. The most important positioning system is the well-known global positioning system. Since the global positioning system belongs to satellite positioning, there are inherent positioning accuracy problems in indoor positioning, so other positioning technologies must be used to solve indoor positioning problems, such as infrared, WIFI (Wireless Fidelity, which belongs to the 802.11b subset of IEEE802.11 standard, is A standard for wireless transmission of packet data), ultrasound and RFID, etc., each of these systems has advantages and disadvantages. Among them, RFID technology has become the preferred positioning technology due to its advantages of non-contact, long transmission distance, low cost and non-line-of-sight. Since the RFID system can obtain centimeter-level positioning accuracy within a few milliseconds, it has attracted much attention.

Robot technology is a comprehensive result of multiple disciplines and represents the frontier of high-tech development. It is constantly expanding in the application field of human life and has brought great progress, development and convenience to human beings. Applying RFID positioning technology to robots can better play the technical characteristics of RFID, realize more accurate positioning of robots, etc., and then realize better movement and operation of robots, and serve us humans more conveniently.

Utility model content

The purpose of the utility model is to combine the RFID positioning technology with the robot to provide an indoor robot positioning and navigation system based on the RFID positioning technology.

In order to realize the purpose of the utility model, the technical scheme adopted in the utility model is as follows: The utility model is an indoor robot positioning and navigation system based on RFID technology, including an RFID positioning subsystem, a robot driving module, and a portable operating platform.

The RFID positioning subsystem obtains the position information of the robot itself and sends it to the robot drive module;

The robot drive module receives the operation instructions of the portable operating platform and realizes the motion control of the robot;

The portable operating platform receives the user's instruction information and transmits it to the robot driving module.

The indoor robot positioning and navigation system based on RFID technology of the utility model takes the RFID indoor positioning technology as the core, the system structure is simple, the cost is not high, the implementation is easy, the operation is convenient, and it is an application platform with good scalability.

Description of drawings

Fig. 1 is the composition schematic diagram of the specific embodiment of the present utility model;

Fig. 2 is a schematic diagram of an application scenario of a specific embodiment of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1, the specific implementation of this system includes an RFID positioning subsystem, a robot drive module, and a portable operating platform. The RFID positioning subsystem includes RFID readers and several RFID tags. The RFID reader is fixed on the robot driving module, and is connected with the robot driving module through a data line. No less than two passive RFID tags are evenly arranged on the ground, and each RFID tag internally stores information representing its coordinate position. When the robot drive module carrying the reader moves in the ground area where RFID tags are arranged, the RFID reader reads the information of the nearest RFID tag, and the coordinates of the read RFID tag are used as its own coordinates to realize its own positioning.

The user can input instruction information to the portable operation platform through voice or touch screen, and the portable operation platform sends operation instructions to the robot drive module through WIFI connection.

The robot drive module includes a single-chip main control sub-module, a drive motor, an infrared detection module, and an electronic compass. The main control sub-module of the single-chip microcomputer is the core component of the robot driver module, and its functions include the following five aspects:

(1) Connect with the RFID reader of the RFID positioning subsystem through a data line, receive coordinate information from the RFID reader and send a read command to it;

(2) Receive operation instructions from the portable operating platform through WIFI connection;

(3) Send control instructions to the drive motor through the data line;

(4) Receive obstacle information from the infrared detection module through the data line;

(5) Receive direction information from the electronic compass through the data line.

Fig. 2 is a schematic diagram of an application scenario of a specific embodiment of the present invention. As shown in the figure, the specific implementation of the system includes an RFID positioning subsystem 1 , a robot driving module 2 , and a portable operating platform 3 . The working process of the specific implementation mode of this system is as follows:

1) The user sends destination information to the portable operating platform 3 through voice or touch screen;

2) The portable operating platform 3 transmits the destination information to the main control sub-module of the single-chip microcomputer through WIFI;

3) After receiving the destination information, the main control sub-module of the single-chip microcomputer sends a read command to the RFID reader of the RFID positioning subsystem, ordering it to read the tag information;

4) The MCU main control sub-module receives the coordinate information from the RFID reader and the direction information from the electronic compass;

5) The main control sub-module of the single-chip microcomputer controls the next movement direction of the robot driving module 2 according to the current position and direction information, and then sends a control command to the drive motor, and the drive motor changes the movement direction of the robot drive module after receiving the control command;

6) During the movement of the robot drive module, the infrared detection module sends obstacle information to the main control sub-module of the single-chip microcomputer in real time. direction of movement;

7) Skip to 4) until the robot drive module 2 reaches the destination.

Claims (1)

1. An RFID-based indoor robot positioning and navigation system, including an RFID positioning subsystem, a robot drive module, and a portable operating platform, wherein: RFID is Radio Frequency Identification, radio frequency identification; The RFID positioning subsystem obtains the position information of the robot itself and sends it to the robot drive module; The robot drive module receives the operation instructions of the portable operating platform and realizes the motion control of the robot; The portable operating platform receives the user's instruction information and transmits it to the robot driving module.