CN107562054A - The independent navigation robot of view-based access control model, RFID, IMU and odometer - Google Patents

The independent navigation robot of view-based access control model, RFID, IMU and odometer Download PDF

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Publication number
CN107562054A
CN107562054A CN201710772582.9A CN201710772582A CN107562054A CN 107562054 A CN107562054 A CN 107562054A CN 201710772582 A CN201710772582 A CN 201710772582A CN 107562054 A CN107562054 A CN 107562054A
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module
robot
imu
odometer
data
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沈颂林
李精文
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Shenzhen Bobbi Robot Technology Co Ltd
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Shenzhen Bobbi Robot Technology Co Ltd
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Abstract

The invention discloses the independent navigation robot of a kind of view-based access control model, RFID, IMU and odometer, is used in outside and posts on the road of RFID label tag, including:IMU and odometer;Data acquisition module, read the data of IMU, odometer and outside RFID label tag;Locating module, obtain the RFID tag data in data acquisition module;Data Fusion module, RFID, odometer are carried out with IMU data to merge to obtain output device people's accurate location information;Camera, obtain current traffic information;Navigation module, it possesses hunting pattern, local inertial navigation pattern;Obstacle avoidance module, peripheral obstacle information is detected, and feed back to control module;Communication system, for dispatching system communication with outside high in the clouds;Control module, it is electrically connected with data acquisition module, locating module, Data Fusion module, camera, navigation module, obstacle avoidance module, communication system, coordinates the operation between each module.

Description

The independent navigation robot of view-based access control model, RFID, IMU and odometer
Technical field
The present invention relates to robot field, and in particular to the independent navigation of a kind of view-based access control model, RFID, IMU and odometer Robot.
Background technology
Existing independent navigation robot, positioned mostly using GPS and Big Dipper positioning, LBS (base station) positioning, iBeacom, Problems with is individually present in technology, these location technologies such as WiFi positioning, track navigation, laser navigation, vision guided navigation:
(1), GPS and Big Dipper positioning:Independent navigation is limited to be accurately positioned that high-lager building in cell is more, and GPS and the Big Dipper are determined Position signal is easily stopped by building, and is easily influenceed by weather, can not be accurately positioned.
(2), LBS (base station) is positioned:Influenceed by base station coverage density and high-lager building, in cell pile compared with More, signal communication environments are bad, easily produce signal drift, and positioning precision is low.
(3), iBeacom is positioned:By using low-power consumption bluetooth technology, iBeacom base stations can be to automatically create one Signal network, bluetooth outdoor positioning need to arrange Bluetooth base. station, it is difficult to arrange Bluetooth base. station in outdoor wide area, and safeguard It is costly.
(4), WiFi is positioned:By robot WiFi module and the wireless signal strength of three wireless network access points, lead to Cross difference algorithm, more accurately to carry out triangle polyester fibre, it is necessary to add more WiFi base stations to robot, and establish base station and Maintenance cost is high.UWB (ultra wide band) is located to be divided tag location to sensor using TDOA and AOA location algorithms more Analysis, multi-path resolved ability is strong, and precision is high, and positioning precision is up to Centimeter Level, but UWB is difficult to a wide range of interior covering of cell, fixed Position cost is high.Traditional RFID positioning carries out deciding field according to reading device position to label, can not position in real time, positioning precision Low, not possessing has communication capacity, poor anti jamming capability, needs also exist for multiple RFID card readers, and needs to safeguard, cost is high.
(5), track navigates:Needing to beat magnetic fourth on mapping out a route, difficulty of construction is big, and cost is high, and change route is difficult, and not It is attractive in appearance.
(6), laser navigation:Using laser accuracy and not diversity degree robot position be accurately positioned come Guidance machine people walks, it is necessary to dispose expelling plate at a certain distance in the section walked, the rotary laser that robot carries Hair penetrates laser, obtains a series of transmitting pin of expelling plates after one week in laser scanning, is computed, extremely visitor calculate in laser rotary The coordinate of the heart, so as to obtain robot position, easily influenceed by pedestrian, driving, installation laser shutter difficulty is big, influences Attractive in appearance, cost is high.
(7), vision guided navigation:Computationally intensive, algorithm is complicated, and shakiness is easily caused in algorithm identification, filtering, conversion process It is qualitative.
Therefore, there is problem, it is necessary to further improve in prior art.
The content of the invention
The present invention asks for above Camera calibration is inaccurate precisely, construction is difficult, maintenance cost is high, arithmetic speed is slow A kind of topic, there is provided the independent navigation robot of view-based access control model, RFID, IMU and odometer.Wherein, IMU is Inertial Measurement Unit, For robot measurement three-axis attitude and acceleration.
To achieve the above object, concrete technical scheme of the invention is as follows:A kind of view-based access control model, RFID, IMU and odometer Independent navigation robot, be used in it is outside post on the road of RFID label tag, including:
IMU and odometer, wherein IMU are used for robot measurement three-axis attitude and acceleration;
Data acquisition module, for reading IMU, odometer and outside RFID label tag data;
Locating module, for obtaining the RFID tag data in data acquisition module, obtain rough location information;
Data Fusion module, RFID label tag, odometer and IMU data merge output device people is accurate Positional information;
Camera, for obtaining current traffic information;
Navigation module, it possesses hunting pattern, local inertial navigation pattern, according to the traffic information of cam feedback two Switch navigation between kind pattern;
Obstacle avoidance module, for detecting peripheral obstacle information, and feed back to control module;
Communication system, for dispatching system communication with outside high in the clouds, receive the instruction of high in the clouds scheduling system;
Control module, for data acquisition module, locating module, Data Fusion module, camera, navigation mould Block, obstacle avoidance module, communication system are electrically connected with, and coordinate the operation between each module.
It is preferred that the Data Fusion module kalman filter method enters to RFID, odometer and IMU data Row merges to obtain output device people's accurate location information.
It is preferred that the hunting pattern is used in the case of lane line in traffic information to have, it identifies track by camera Line, the skew of robot is corrected by visual feedback information so that robot is maintained in lane line and travelled.
It is preferred that the local inertial navigation pattern is used in the case of lane line in traffic information to have, in no track The region of line, outside high in the clouds scheduling system departed from track line position to robot last time and reach track line position next time to robot Planned, robot is obtained from the position in map by the FRID label information and IMU/ odometer information that read Put, complete no lane line region Local Navigation.
It is preferred that the obstacle avoidance module includes some ultrasonic sensors, it detects peripheral obstacle information in real time.
Above-mentioned technical proposal is used, the invention has the advantages that:
(1) odometer and IMU position errors, are corrected using lane line information, RFID information, robot localization is more smart Standard, traveling are relatively reliable;
(2), lane line, RFID is combined with odometer/IMU data can accurately calculate position of the robot in known map Put, solve the problems, such as that positioning is not accurate in groups of building;
(3) data of combining RFID and odometer/IMU, are only needed in terms of positioning, hunting part only needs to identify track Line, the more traditional targeting scheme of amount of calculation greatly reduce;
(4), avoiding obstacles by supersonic wave module avoids producing collision during robot ride;
(5) robot ride status information, traffic information, are uploaded in real time, perform action message to cloud system, high in the clouds system System can real-time supervisory-controlled robot, according to the data progress self-teaching being stored in cloud system, robot ride gets over for robot It is much more clever;
(6), view-based access control model, RFID and odometer/IMU, the independent navigation robot of ultrasonic sensor are applied to cell In go on patrol and on duty send express delivery.
Brief description of the drawings
Fig. 1 is the theory diagram of the present invention;
Fig. 2 is the control flow chart of the present invention;
Fig. 3 is navigation path planning figure in one embodiment of the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, invention is described in detail.
Shown in reference picture 1, the independent navigation robot of a kind of view-based access control model, RFID, IMU and odometer, outside is used in On the road for posting RFID label tag 103, including:
IMU 101 and odometer 102, wherein IMU 101 are used for robot measurement three-axis attitude and acceleration;
Data acquisition module 104, for reading IMU 101, odometer 102 and outside RFID label tag 103 data;
Locating module 105, for obtaining the data of RFID label tag 103 in data acquisition module 104, obtain rough location letter Breath;
Data Fusion module 106, RFID label tag 103, odometer 102 with IMU 101 data merge Output device people's accurate location information;
Camera 107, for obtaining current traffic information;
Navigation module 108, it possesses hunting pattern 108a, local inertial navigation pattern 108b, according to cam feedback Traffic information switches navigation between both of which;
Obstacle avoidance module 109, for detecting peripheral obstacle information, and feed back to control module;
Communication system 110, for being communicated with outside high in the clouds scheduling system 111, receive the instruction of high in the clouds scheduling system 111;
Control module 112, for data acquisition module 104, locating module 105, Data Fusion module 106, take the photograph As first 107, navigation module 108, obstacle avoidance module 109, communication system 110 are electrically connected with, coordinate the operation between each module.
Wherein, the Data Fusion module 106 with kalman filter method to RFID label tag 103, odometer 102 with IMU 101 data carry out merging to obtain output device people's accurate location information.
The hunting pattern 108a is used in the case of lane line in traffic information to have, and it identifies track by camera 107 Line, the skew of robot is corrected by visual feedback information so that robot is maintained in lane line and travelled.
The local inertial navigation pattern 108b is used in the case of lane line in traffic information to have, in no lane line Region, outside high in the clouds scheduling system 111 departed from track line position to robot last time and reach track line position next time to robot Planned, robot is obtained from ground by the information of RFID label tag 103 and the information of 101/ odometers of IMU 102 read Position in figure, complete no lane line region Local Navigation.
The obstacle avoidance module 109 includes some ultrasonic sensors, and it detects peripheral obstacle information in real time.
Referring to figs. 1 to Fig. 3, operation principle of the invention is as follows:
Robot reads the information of RFID label tag 103 and odometer 102 and IMU 101 by data acquisition module 104 first Information.Again by the combining RFID label 103 of Data Fusion module 106 and the information of odometer 102/IMU 101, machine is obtained People current location.Robot be connected to send with charge free or patrol mission after, high in the clouds dispatch system 111 according to mission planning robot from work as Front position reaches the path of target location.If current robot on lane line, calls hunting pattern 108b;If machine People's running region does not have lane line, then calls local inertial navigation pattern 108a.Robot travels under both modes, if Barrier is run into, then enables avoidance pattern.Until robot reaches target point.Specifically, the present invention is realized using following steps Above-mentioned function:
S201, gathered data
The data acquisition module 104 of robot reads the information of RFID label tag 103, and the data of odometer 102/IMU 101, And these data are transferred to Data Fusion module 106.
Data Fusion module 106:RFID label tag 103, odometer 102/IMU 101 are counted with kalman filter method According to being merged to obtain accurate robot location's information.
S202, positioning
Approximate location of the robot in map is obtained by the information of RFID label tag 103, then by odometer 102/IMU 101 Data obtain elaborate position of the robot in map.
There is the region of lane line, Robot lane line traveling, machine is obtained by odometer 102 and the data of IMU 101 Accurate distance of the people on lane line, and then accurate location of the positioning robot in map.There is no the region of lane line, machine People carries out local inertial navigation by odometer 102 and IMU 101, and combining RFID label 103 and odometer 102/IMU 101 are counted According to obtaining accurate location of the robot in map.
S203, high in the clouds scheduling
Wisdom cell high in the clouds fusion cell life big data, United Dispatching is carried out to robot.Receive robot send with charge free or Person's patrol mission, high in the clouds dispatch system 111 and carry out comprehensive analysis to all robot locations, chooses up to task object point most Near robot, path planning, the optimal path of generation robot current location to target point are carried out for elected robot.
Whether S204, robot are on track (navigation)
Whether there is lane line by the position judgment current robot running region of camera 107 and robot in map, If lane line, Robot Selection hunting pattern 108b;If without lane line, Robot Selection part inertial navigation pattern 108a。
In step S204a, Local Navigation pattern 108a:In the region of no lane line, system is dispatched to robot in high in the clouds Last time departs from track line position and is planned that robot is by the RFID letters read to robot arrival next time track line position Breath and IMU/ odometer information obtain, from the position in map, completing no lane line region Local Navigation.
In step S204b, hunting pattern 108b:Lane line is identified by monocular cam 107, passes through visual feedback information school Positive robot skew, makes robot be maintained in lane line and travels.
S205, avoidance
During robot ride, (10 ultrasonic sensor sides are each three, front and rear altogether for ultrasonic sensor Each two) detection robot peripheral obstacle, and obstacle information is added into map in real time, obstacle-avoiding route planning is carried out, until Robot departs from barrier region.
Whether S206, robot reach home
If reaching home, terminate the navigation stroke of robot;If not reaching home also, return to step S201 repeats to hold Row above step.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art in the technical scope of present disclosure, technique according to the invention scheme and its Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.

Claims (5)

1. the independent navigation robot of a kind of view-based access control model, RFID, IMU and odometer, it is used in outside and posts RFID label tag On road, it is characterised in that including:
IMU and odometer, wherein IMU are used for robot measurement three-axis attitude and acceleration;
Data acquisition module, for reading IMU, odometer and outside RFID label tag data;
Locating module, for obtaining the RFID tag data in data acquisition module, obtain rough location information;
Data Fusion module, RFID label tag, odometer are carried out with IMU data to merge to obtain output device people's accurate location Information;
Camera, for obtaining current traffic information;
Navigation module, it possesses hunting pattern, local inertial navigation pattern, according to the traffic information of cam feedback in two kinds of moulds Switch navigation between formula;
Obstacle avoidance module, for detecting peripheral obstacle information, and feed back to control module;
Communication system, for dispatching system communication with outside high in the clouds, receive the instruction of high in the clouds scheduling system;
Control module, for data acquisition module, locating module, Data Fusion module, camera, navigation module, keep away Barrier module, communication system are electrically connected with, and coordinate the operation between each module.
2. independent navigation robot according to claim 1, it is characterised in that the Data Fusion module karr Graceful filtering method carries out merging to obtain output device people's accurate location information to RFID, odometer with IMU data.
3. independent navigation robot according to claim 1 or 2, it is characterised in that the hunting pattern is in traffic information Used to have in the case of lane line, it identifies lane line by camera, and the skew of robot is corrected by visual feedback information, is made Obtain robot and be maintained at traveling in lane line.
4. independent navigation robot according to claim 1 or 2, it is characterised in that the local inertial navigation pattern exists Traffic information is used in the case of lane line to have, and in the region of no lane line, system was dispatched to robot last time in outside high in the clouds Depart from track line position and planned that robot is by the RFID label tag letter read to robot arrival next time track line position Breath and IMU/ odometer information obtain, from the position in map, completing no lane line region Local Navigation.
5. independent navigation robot according to claim 1 or 2, it is characterised in that the obstacle avoidance module includes some super Sonic sensor, it detects peripheral obstacle information in real time.
CN201710772582.9A 2017-08-31 2017-08-31 The independent navigation robot of view-based access control model, RFID, IMU and odometer Pending CN107562054A (en)

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CN108364159A (en) * 2018-04-09 2018-08-03 郑州檀乐科技有限公司 A kind of unmanned plane logistics face label device and method
CN108388266A (en) * 2018-04-09 2018-08-10 郑州檀乐科技有限公司 A kind of UAV system for logistics delivery
CN108520377A (en) * 2018-04-09 2018-09-11 郑州琼佩电子技术有限公司 A kind of unmanned plane logistics face label method
CN108777071A (en) * 2018-07-04 2018-11-09 深圳智达机械技术有限公司 A kind of highway patrol robot
CN109443350A (en) * 2018-12-27 2019-03-08 西安中科光电精密工程有限公司 Bluetooth/photoelectricity/INS combined navigation device neural network based and method
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CN112462762A (en) * 2020-11-16 2021-03-09 浙江大学 Robot outdoor autonomous moving system and method based on roadside two-dimensional code unit
CN112611381A (en) * 2020-10-29 2021-04-06 武汉哈船导航技术有限公司 Artificial intelligence inertial navigation system
CN113077014A (en) * 2021-04-29 2021-07-06 上海德衡数据科技有限公司 Cloud edge terminal information fusion method, system, device and medium

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