CN204231515U - Based on the intelligent-tracking equipment of radar detection - Google Patents

Abstract

The utility model discloses a kind of intelligent-tracking equipment based on radar detection based on laser radar technique and intelligent behavior detection analysis method; comprise register control, behavior point sensing apparatus, behavior detection analyzer, behavior detection analysis control panel, Behavior-Based control distributor, data storage, cable protector etc.; wherein, behavior point sensing apparatus comprises laser beam emitting device and laser receiver.Intelligent-tracking equipment based on radar detection can the behavior of teachers and students in real-time detection classroom; and be published in Behavior-Based control distributor; carry out man-machine interactive operation by behavior detection analysis control panel simultaneously; cable protector wherein can be applicable to the cable of different length, can facilitate, effectively protect cable.This intelligent behavior detection analysis method can be analyzed according to the data in memory and based on the data of the intelligent-tracking equipment collection of radar detection, the real-time behavior of acquisition teachers and students and the position of the behavior of generation, and show in Behavior-Based control distributor.

Description

Based on the intelligent-tracking equipment of radar detection

Technical field

The utility model relates to a kind of intelligent-tracking equipment based on radar detection and localization method thereof, is specifically related to a kind ofly to record for Classic Course in classroom, the intelligent-tracking equipment based on laser radar detection of teacher-student action real-time detection and analysis and intelligent behavior detection analysis method.

Background technology

Intelligent-tracking equipment mainly leads to the equipment such as infrared acquisition, video analysis, ultrasonic wave, take that video camera rotates, zooms out, furthers through the process such as detection, induction rear drive, focusing etc., made the video file of the automatic synthetic standards of picture such as teacher takes video camera, student takes video camera, VGA image by corresponding strategies.

One of object of intelligent-tracking equipment is the video record to Classic Course, and namely when nobody keeps value, teacher takes the running track of camera to automatically track teacher in classroom, and student takes the feature etc. that video camera automatically switches to the student that answers a question.But, existing tracking technique needs further perfect.

The Video Analysis Technology that current Application comparison is many installs multiple framing video camera mainly through classroom ceiling, surrounding etc., according to the comparative analysis of framing video camera to image before and after locating area, as image changes, and amplitude of variation reaches critical point, control video camera and track up is done to image change region, because a lot of producer has dropped into human and material resources and financial resources to video analysis algorithm, strategy etc., and hardware cost is lower, therefore intelligent-tracking equipment adopts the scheme of Video Analysis Technology to be promoted.Infrared detection technique use principle in intelligent-tracking loads onto infrared emission bar on the four sides wall of classroom, and infrared receiving device, about one upper and lower plane net is made into according to student's average height, serve as a teacher walk about or student stands time, have a coordinate points and block the infrared net of this sheet of planar, control video camera according to this coordinate points and take; Because this Technical Follow-Up is accurate, and part producer widelys popularize, and also obtains certain customers' accreditation.The application principle of ultrasonic listening technology in following the tracks of is that the shift position of ultrasonic equipment to teacher is followed the tracks of, along installing row's ultrasonic probe under blackboard, ultrasonic probe real-time detection teacher position and distance when teacher moves before blackboard, because ultrasonic probe positioning precision is high, error is within ± 2CM.To human body fanout free region during tracking, classroom environment is required few, not by interference such as light, clothing materials, temperature, once obtained certain accreditation of client, and be widely applied to a certain extent.

Airborne Lidar examining system is based on laser distance measuring principle, launches the scanning plane forming two dimension, with feasible region scanner uni profile measurement function by the optics rotated.Germany west gram is the leading brand of laser scanning, detecting, product is widely used in crashproof, exploration, navigation, security protection etc., and as crashproof in equipment, bulk goods cubing, vehicle detect, automatic carriage navigation, sensitizing range protection, indoor object move and cubing etc.

Present intelligent-tracking equipment main flow have 3 kinds: video analysis intelligent-tracking equipment, infrared spatial intelligent-tracking equipment, ultrasonic listening intelligent-tracking equipment.

Video analysis intelligent-tracking equipment adopts Embedded DSP image analysis algorithm, main frame is followed the tracks of in graphical analysis and multiple located camera composition, because the shape in classroom is of all kinds and it is large and need a lot of video line of cloth to be connected to graphical analysis to follow the tracks of in main frame to install multiple camera operation amount, video analysis intelligent-tracking equipment is adopted to be subject to the impacts such as classroom general layout, light, sunray, curtain, application is difficult in universal intelligent classroom, even installed reluctantly, also can occur along with the environmental change in classroom during full-automatic tracking following the tracks of unstable phenomenon.

Infrared spatial intelligent-tracking equipment wall is loaded onto infrared emission bar around classroom, infrared receiving device, about one upper and lower plane net is made into according to teacher, raw average height, serve as a teacher walk about or student stands time, have a coordinate points and block the infrared net of this sheet of planar, control video camera according to this coordinate points and take; But this tracking mode difficulty of construction in early stage is large, and install extremely complicated, later maintenance is also wasted time and energy, inadequate hommization, cannot support the tracking such as mobile classroom.

The DSP embedded detection range algorithm that ultrasonic listening intelligent-tracking equipment adopts and multiple ultrasonic wave module composition.Need to be arranged on edge under blackboard, how long just blackboard has needs to install how many detecting modules, and ultrasonic listening intelligent-tracking equipment only supports multimachine position video camera, do not support The Cloud Terrace integrated camera, the construction cost of whole smart classroom is difficult to controlled, and the supersonic zone tracking system owing to adopting, be merely able to the mobile tracking supporting writing on the blackboard region, do not support student's area tracking, student's area tracking also needs additionally to increase voice-activated tracking or infrared emission tracking etc., failure rate is very high, and maintenance cost is high; The market so ultrasonic listening technology is slowly faded out.

There is following deficiency in current intelligent-tracking equipment, technology:

(1) Video Analysis Technology, the graphical analysis video camera that this technology adopts drives the tracking of shooting video camera to the change before and after area image, all can cause during the change of this technology lamp pass, curtain etc. at the scene and follow the tracks of inaccurate, camera disorderly switches or the situation of not following the tracks of; Dais auto-tracking shooting and teacher on many people cannot be realized and go to the effect of front, student region shooting, cannot lyceum etc. be supported.

(2) infrared detection technique, this technology needs to install red infrared emission bar in classroom surrounding, infrared receiving device, constructs particularly troublesome and the later period maintenance cycle is longer; And student cannot be distinguished stand or raise one's hand strategy.

(3) ultrasonic technology, this technology needs to infer module along installation a lot of ultrasonic waves under blackboard, and cannot realize the intelligent-tracking in student region, and student region needs to increase tone tracking or Infrared push button tracking.

(4) problem of cable protector, cable protection shell needs to carry out field fabrication according to actual conditions, time and effort consuming, does not have a universal product.

Summary of the invention

For overcoming deficiency of the prior art, " intelligent-tracking equipment and the intelligent behavior detection analysis method based on radar detection " of the utility model research and development, have special laser tracking equipment, network interface, power interface, serial interface, interface adopts general aviation plug to make whole system more reliable and more stable.Based on scannings such as the real-time displacement of laser acquisition, directions, the upper dais of many people can be supported in teaching process from motion tracking from person close to blackboard; The effect that teacher goes to the shooting of front, student region can be realized by teacher's tracing mode; Laser acquisition by scan object size, highly distinguish student and stand or raise one's hand.

Intelligent-tracking equipment based on radar detection relates to following key technology: (1) supports the upper dais of many people, because teacher is in the process of giving lessons, has the situation that student removes writing blackboard on dais, needs to solve camera to automatically track shooting and writes writing on the blackboard person.(2) teacher walks Students ' region and realizes the shooting of teacher's video front, in teachers' instruction process, can go to student region and student's real-time interactive, needs to realize teacher and takes video camera real-time tracking teacher and front shooting.(3) automatic distinguishing student stands or raises one's hand, now universal video analysis intelligent-tracking equipment cannot be distinguished student and stands or raise one's hand, so there will be student when a lot of student raises one's hand to race to be the first to answer a question problem when serving as a teacher enquirement to take the tracking of video camera around, cause the rubbish camera lens of video file.The intelligent-tracking equipment of radar detection needs to distinguish student and stands or raise one's hand.(4) support that mobile classroom is followed the tracks of, only the intelligent-tracking that this equipment can realize whole classroom need be installed in smart classroom, and this equipment volume is little, lightweight, power consumption is low, installation is simple, debugging is convenient, to features such as environmental suitability are strong, the various places that can be used for building vide environment use temporarily.

Core technology principle of the present utility model is as follows:

Realization needs of the present utility model 2 chief components: classroom real-time detection module, house calculation module.Be discussed below respectively:

(1) classroom real-time detection module

Laser detector is detected with high accuracy equipment, adopts the measuring principle of following several maturation, carries out non-contact detection, even if make measuring system in the presence of a harsh environment also can the region contour that obtains of Measurement accuracy laser scanning.

A) Laser Time flight theory: pulse laser ripple is penetrated by the generating laser of equipment internal affairs, timer internal gets present system time t1, reflect after the laser wave of injection encounters object, portion of energy returns, when laser pickoff receives return laser light ripple, timer internal gets present system time t2, then can calculate laser radar to the distance of object to be: S=C (light velocity) × (t2-t1) ÷ 2.

B) Phase Difference Principle: same when generating laser sends laser pulse ripple, the phase place recording now laser wave is f1, reflect after laser wave encounters object, portion of energy returns, when laser pickoff receives return laser light ripple, the phase place recording now laser wave is f2, and laser scanner to the distance of object is: S=(f2-f1) ÷ 360 × n (n is proportionality coefficient).

C) single echo principle: generating laser sends laser pulse ripple, reflect after laser wave encounters forward object, portion of energy returns, when return laser light ripple is received by laser pickoff, and the energy of close echo is more than or equal to trigger gate threshold value, laser scanner can calculate the distance value that it arrives object, then each laser wave only has a measured value.

D) multiecho principle: first similar with single echo principle, laser transmitted pulse ripple, received pulse ripple is greater than the reflected signal of threshold value to obtain measuring distance; If but first object be glass or other can through object, laser wave can continue forward, until when encountering second object, portion of energy just returns, when laser pickoff receives the return laser light ripple being greater than threshold value, laser scanner just can calculate the distance value that it arrives object.So the laser pulse ripple that laser sends can provide multiple measured value, the one or more value of final selection is processed.

E) laser scanner measuring principle: the round-the-clock in actual use transmitted pulse ripple of laser scanner, per secondly reaches 20 to 50 transmittings, and laser pulse ripple is beaten on the minute surface of High Rotation Speed, so can by pulsed wave transmissions to all directions.Thus form the plane of scanning motion of a 2 dimensional region.The accurate angle and distance numerical value of each measurement point that scanner exports can be obtained in this 2 dimensional region plane of scanning motion, according to this range information, the external form profile of object can be calculated, coordinate tracking etc.

The impulse wave reflection that laser scanner sends as shown in Figure 1.As shown in Figure 2, black filled circle represents Laser Scanning Equipment to the two-dimensional scan plane graph detected in real space, and blue line represents boundary wall face, region.

There is the two-dimensional space plane picture obtained from laser scanner devices, and obtained the distance value that the pulse laser in this two-dimensional space corresponding to all angles returns, be the various tracking calculating will carried out in this space and established data basis.

(2) house calculation module

First scan the inner initial profile in classroom by laser signal, then scan in classroom contour images when having barrier, can know where occurred target by the difference comparing both profiles.

Due to the scanning 25 per second of laser signal scanning device or 50 classroom profiles, classroom has slight perturbations that laser equipment also may be caused to detect.So when judging target, adopting Multiple-Scan determination methods, set a constant N, when in the profile of classroom N continuous time scan can detect that certain position has target to exist time, just think the appearance that target is real.

Whole classroom coordinatograph, using the position residing for Laser Scanning Equipment as the origin of coordinates, with Laser Scanning Equipment trunnion axis for X-axis, with Laser Scanning Equipment vertical axis for Y-axis, then in classroom, any point uniquely can represent with coordinate.

When a target occurs, he just determines coordinate position in classroom.Now can to calculate in this target to classroom accurate distance and the angle of any one point, and along with the movement of target, the calculated value of Distance geometry angle can real-time change, and this calculated value can for other softwares or system as input value.

Locking dais during dais on many people, the student's camera lens below not switching in judging whether there is multiple target on dais, keeps writing on the blackboard camera lens always.Pinpoint target distance, judges the distance foundation of pinpoint target for arranging software, as being set to 100cm, then representing within two personages stand in 100cm and can judge into a target, just can judge into two targets beyond 100cm.If ignore target static to be for a long time detected for a long time for arranging a target, and do not move, whether should be automatically ignored.Arrange quiescent time how long to be detected and not move and answer uncared-for time span.The minimum widith of the target that can be detected can be used for the minimum widith arranging the target that can be detected, if be less than this width, then target is not by Programmable detection.Such as arrange shielding student by this to raise one's hand.

In order to solve the problems of the technologies described above, realize above-mentioned purpose, according to above-mentioned principle, the utility model is achieved through the following technical solutions:

Based on the intelligent-tracking equipment of radar detection, comprising: behavior point sensing apparatus, register control, behavior detection analyzer, behavior detection analysis control panel, Behavior-Based control distributor, data storage, power interface, network interface, connection cable, cable protector.

Described behavior point sensing apparatus is made up of laser beam emitting device and laser receiver, and laser beam emitting device is corresponding with laser receiver to be arranged, and laser beam emitting device is used for continuous Emission Lasers line, and tranmitting frequency is 25-50 time per second.Described behavior point sensing apparatus has three kinds of structures:

(1) behavior point sensing apparatus is placed in rear, classroom or side, and the round-the-clock in actual use transmitted pulse ripple of laser beam emitting device, laser pulse ripple is beaten on the minute surface of High Rotation Speed, by pulsed wave transmissions to all directions.Thus form the plane of scanning motion of a 2 dimensional region.The laser receiver of relevant position is set, receive the return laser beam in the 2 dimensional region plane of scanning motion, the accurate angle and distance numerical value of each measurement point that scanner exports can be obtained in this 2 dimensional region plane of scanning motion, according to this range information, the external form profile of object can be calculated, coordinate tracking etc.

(2) behavior point sensing apparatus is placed in rear, classroom or side, and the teacher in classroom on student and dais is convenient to observe in the visual angle of installation site; One or more laser beam emitting device corresponds to a laser receiver, the laser beam emitting device of One's name is legion and laser receiver are clouded in a spherical outer surface, these laser beam emitting devices are from the centre of sphere to surrounding Emission Lasers line, each laser rays is sent by laser beam emitting device, is received by laser receiver; The spherical structure be made up of laser beam emitting device and laser receiver has an opening in below, this opening is circular, for installing bracing frame and cable.

(3) laser beam emitting device and laser receiver are positioned on the body of wall of classroom surrounding, a laser beam emitting device corresponds to a laser receiver, the laser beam emitting device of One's name is legion and laser receiver are clouded in each body of wall, each laser rays is sent by laser beam emitting device, received by laser receiver, the laser rays that laser beam emitting device is launched is perpendicular to the body of wall installing this laser beam emitting device; Described densely covered behavior point sensing apparatus forms the scanning graticule mesh in horizontal and vertical direction, form a plane of scanning motion net, when any scan line having object to stop in graticule mesh, just two-dimensional coordinate can be determined according to this by the laser rays in the horizontal and vertical direction stopped.In the below of each face wall, cable mouth is all installed, in body of wall, lays supply lines, signal transmssion line by this cable mouth.

The open and close of described register control controlling behavior point sensing apparatus, control the action of laser beam emitting device and laser receiver, transferring and storage of data of simultaneously having issued an order, and controlling behavior detection analyzer is to the action of Data Management Analysis and distributor.Described register control is used for the action of controlling behavior point sensing apparatus, specifically comprise: the open and close of behavior point sensing apparatus, data receiver, transfer of data, data store, data are transferred, and the analysis of behavior detection analyzer, result export, Behavior-Based control distributor is to the issue of behavioural analysis result.

Described behavior detection analyzer, for comparing according to the different time point data of behavior point sensing apparatus collection, combining image analytical technology, judges the behavior type that in search coverage, teachers and students occur, and occurrence positions.

Described Behavior-Based control distributor, is arranged on dais, or is arranged on Teaching Monitoring indoor.Behavior-Based control distributor is issued detection by two kinds of modes and is analyzed the behavior obtained:

(1) text importing: the type that epideictic behaviour occurs, as raised one's hand, leaving the table, stand;

(2) position display: use red spots to indicate the position of behavior generation on figure, and this red spots of flickering display.

Described data storage is for storing data, and data wherein had both comprised the initial data be stored therein in advance, also comprises the new data gathered.Initial data can be the data in sky classroom, also can be occupy student and student keeps normal sitting position time data, or part teachers and students make leave the table, stand, raise one's hand behavior time data.

Described power interface is used for providing supply of electric power to the whole intelligent-tracking equipment based on radar detection, concrete provides power supply for register control, behavior point sensing apparatus, behavior detection analyzer, behavior detection analysis control panel, Behavior-Based control distributor, data storage.

Described network interface, for transmitting data message and instruction signal between register control, behavior point sensing apparatus, behavior detection analyzer, behavior detection analysis control panel, Behavior-Based control distributor, data storage.

Further, the power interface in said system and network interface adopt general aviation interface, make whole system more reliable and more stable.

Described behavior detection analysis control panel, be arranged on Teaching Monitoring indoor, it is based on the form of man-machine interaction, realize the control of operating personnel to the intelligent-tracking equipment based on radar detection, this controlling behavior can comprise: the keying of system, data receiver or importing, Data Transmission Controlling, data deletion, the unlatching of behavior detection analysis function, the issue of Behavior-Based control distributor behavioural information and erasing.

Described cable protector, for extendible cordwood system type cable protector, this extendible cordwood system type cable protector is characterised in that: be made up of left end head, easily extensible building block, elastic telescopic section, right end, above-mentioned parts are hollow-core construction, and cable is housed inside in the hollow space of left end head, easily extensible building block, elastic telescopic section, right end composition; Wherein left end head, right end are be fixed on the position that body of wall or other cables pass; Easily extensible building block comprises X-type building block and Y type building block.Particularly, such as the length specification of X-type building block and Y type building block can be respectively 4cm, 6cm, and the maximal dilation amount of elastic telescopic section is 3cm; For the cable of any one length, all can be protected by the cable protector of m X-type building block, a n Y type building block, 1 elastic telescopic section composition, wherein m, n are the positive integer being more than or equal to 0.

Concrete, X-type building block is following structure: length is 4cm, interface on the right side of interface, X-type building block interlude, X-type building block on the left of X-type building block, wherein on the left of X-type building block, interface can engage with left end head, and on the right side of X-type building block, interface can engage with right end; Y type building block is following structure: length is interface on the right side of interface on the left of 6cm, Y type building block, Y type building block interlude, Y type building block.Wherein on the left of Y type building block, interface can engage with interface on the right side of left end head or X-type building block, and on the right side of Y type building block, interface can engage with interface on the left of right end or X-type building block.

Further, for improving the reliability of described system, described system also comprises a behavior image capture device, this equipment is used for Real-time Obtaining religion off-the-air picture, and carry out front and back image ratio comparatively in real time, if have action behavior in discovery image, transfer the result of connected behavior detection analyzer, if the result of behavior detection analyzer is also find that there is action behavior, so do not do any operation, if the result of behavior detection analyzer is not for find action behavior, so by this information feed back to register control, register control sends command signal to Behavior-Based control distributor, light flash prompting is made by Behavior-Based control distributor.Above-mentioned behavior image capture device and above-mentioned behavior point sensing apparatus form dual fail-safe, avoid behavior not to be detected, thus affect operator and make response.

Intelligent behavior detection analysis method, the method adopts the aforementioned intelligent-tracking equipment based on radar detection, the data utilizing behavior point sensing apparatus to transmit and the data of data storage, teacher-student action in classroom is analyzed, the position of the type that the analysis behavior that draws occurs and generation, concrete steps are as follows:

(1) installation and debugging based on the intelligent-tracking equipment of radar detection are used

(2) opening of device and coordinatograph

(3) Data acquisition and storage

(4) fusion of data and contrast

(5) analysis of data

(6) display of data and feedback

In described step (1), each parts of the intelligent-tracking equipment based on radar detection are installed in classroom or Teaching Monitoring indoor, carry out the installation of power interface and network interface, carry out installation work; Operational outfit, whether checkout facility connects normal, carries out debugging;

In described step (2), for the coordinatograph in space, classroom, can carry out in the following manner, using the position residing for a Laser Scanning Equipment as the origin of coordinates, with this Laser Scanning Equipment trunnion axis for X-axis, with this Laser Scanning Equipment vertical axes for Y-axis, then in classroom, any point can with unique the representing of above-mentioned coordinate system.

Described step (3) is completed by register control controlling behavior point sensing apparatus, data storage.

Described step (4) and (5) complete primarily of behavior detection analyzer.The built-in behavioural analysis module of described behavior detection analyzer, this module can obtain the data that behavior point sensing apparatus obtains, and described data can be angle, distance, laser beam emitting device centre coordinate etc.; This module can data in called data memory, the measurement data of different time points or initial data are merged; By current data and passing data are contrasted, draw the coordinate of generation behavior point, by each behavior point coordinates, can analyze the measured object exterior contour of behavior occurrence positions, the area size of behavior and height, regional center position coordinates occur, this profile refers to teachers and students' body part of generation behavior.The behavior of teachers and students can be: the movement of teacher, write behavior, the raising one's hand of student, stands, walks out classroom behavior.

Described step (6) is completed by Behavior-Based control distributor, completes content and comprises (1) text importing: the type that epideictic behaviour occurs, as raised one's hand, leaving the table, stand; (2) position display: use red spots to indicate the position of behavior generation on figure, and this red spots of flickering display.

In described step (6), for the intelligent-tracking equipment based on radar detection increases behavior image capture device, newly-increased comparison operation in step (6), concrete is: the result of detection of the intelligent-tracking equipment based on radar detection and the result of detection of behavior image capture device are compared, when (1) both results are consistent, namely be and find action behavior or do not find action behavior, then be left intact, when (2) when the intelligent-tracking equipment based on radar detection does not find action behavior, when behavior image capture device finds action behavior, then intelligent behavior detection analyzer re-starts analysis to data.

Compared with prior art, the utility model has following beneficial effect:

(1) dynamic realtime scanning region, classroom, the displacement that transmission is actual, real-time tracking is taken, and not by any external interference, follows the tracks of more accurately rapider;

(2) problem that an equipment judges Faculty and Students is solved, the shielding area of not wanting to carry out scan operation can be marked easily, the upper dais of many people can be distinguished, realize the front shooting that teacher goes to student region, standing or raising one's hand appears in automatic distinguishing student region, support length to reach lyceum that 40 meters of lyceums and area reach 600 square metres.

(3) embedded system is stablized, and volume is little, lightweight, and power consumption is low, anti-interference, and to human-body safety, install simple, debugging is convenient, non-maintaining.

Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the impulse wave principle of reflection figure that the utility model laser scanner sends.

Fig. 2 is two-dimensional scan plane graph of the present utility model.

Fig. 3 is coordinatograph schematic diagram of the present utility model.

Fig. 4 is the intelligent positioning equipment connection schematic diagram based on radar detection of the present utility model.

Fig. 5 is the intelligent positioning equipment connection schematic diagram based on radar detection of the utility model band image behavior collecting device.

Embodiment

Below in conjunction with drawings and Examples, technology implementation process of the present utility model is described further.

Embodiment 1:

Shown in Figure 4; based on an intelligent-tracking equipment for radar detection, comprising: behavior point sensing apparatus, register control, behavior detection analyzer, behavior detection analysis control panel, Behavior-Based control distributor, data storage, power interface, network interface, connection cable, cable protector.

Described behavior point sensing apparatus is made up of laser beam emitting device and laser receiver, and laser beam emitting device is corresponding with laser receiver to be arranged, and laser beam emitting device is used for continuous Emission Lasers line, and tranmitting frequency is 25-50 time per second.Described behavior point sensing apparatus adopts following structure:

Behavior point sensing apparatus is placed in rear, classroom or side, and the round-the-clock in actual use transmitted pulse ripple of laser beam emitting device, laser pulse ripple is beaten on the minute surface of High Rotation Speed, by pulsed wave transmissions to all directions.Thus form the plane of scanning motion of a 2 dimensional region.The laser receiver of relevant position is set, receive the return laser beam in the 2 dimensional region plane of scanning motion, the accurate angle and distance numerical value of each measurement point that scanner exports can be obtained in this 2 dimensional region plane of scanning motion, according to this range information, the external form profile, coordinate tracking etc. of object can be calculated.

The open and close of described register control controlling behavior point sensing apparatus, control the action of laser beam emitting device and laser receiver, transferring and storage of data of simultaneously having issued an order, and controlling behavior detection analyzer is to the action of Data Management Analysis and distributor.Described register control is used for the action of controlling behavior point sensing apparatus, specifically comprise: the open and close of behavior point sensing apparatus, data receiver, transfer of data, data store, data are transferred, and the analysis of behavior detection analyzer, result export, Behavior-Based control distributor is to the issue of behavioural analysis result.

Described behavior detection analyzer, for comparing according to the different time point data of behavior point sensing apparatus collection, combining image analytical technology, judges the behavior type that in search coverage, teachers and students occur, and occurrence positions.

Described Behavior-Based control distributor, is arranged on dais, or is arranged on Teaching Monitoring indoor.Behavior-Based control distributor is issued detection by two kinds of modes and is analyzed the behavior obtained:

(1) text importing: the type that epideictic behaviour occurs, as raised one's hand, leaving the table, stand;

(2) position display: use red spots to indicate the position of behavior generation on figure, and this red spots of flickering display.

Described data storage is for storing data, and data wherein had both comprised the initial data be stored therein in advance, also comprises the new data gathered.Initial data can be the data in sky classroom, also can be occupy student and student keeps normal sitting position time data, or part teachers and students make leave the table, stand, raise one's hand behavior time data.

Described power interface is used for providing supply of electric power to the whole intelligent-tracking equipment based on radar detection, concrete provides power supply for register control, behavior point sensing apparatus, behavior detection analyzer, behavior detection analysis control panel, Behavior-Based control distributor, data storage.

Described network interface, for transmitting data message and instruction signal between register control, behavior point sensing apparatus, behavior detection analyzer, behavior detection analysis control panel, Behavior-Based control distributor, data storage.

Further, the power interface in said system and network interface adopt general aviation interface, make whole system more reliable and more stable.

Described behavior detection analysis control panel, be arranged on Teaching Monitoring indoor, it is based on the form of man-machine interaction, realize the control of operating personnel to the intelligent-tracking equipment based on radar detection, this controlling behavior can comprise: the keying of system, data receiver or importing, Data Transmission Controlling, data are deleted, the unlatching of behavior detection analysis function, the behavioural information of Behavior-Based control distributor are issued and erasing.

Described cable protector, for extendible cordwood system type cable protector, this extendible cordwood system type cable protector is characterised in that: be made up of left end head, easily extensible building block, elastic telescopic section, right end, above-mentioned parts are hollow-core construction, and cable is housed inside in the hollow space of left end head, easily extensible building block, elastic telescopic section, right end composition; Wherein left end head, right end are be fixed on the position that body of wall or other cables pass; Easily extensible building block comprises X-type building block and Y type building block, and length specification is respectively 4cm, 6cm, and the maximal dilation amount of elastic telescopic section is 3cm; For the cable of any one length, all can be protected by the cable protector of m X-type building block, a n Y type building block, 1 elastic telescopic section composition, wherein m, n are the positive integer being more than or equal to 0.

Concrete, X-type building block is following structure: length is 4cm, interface on the right side of interface, X-type building block interlude, X-type building block on the left of X-type building block, wherein on the left of X-type building block, interface can engage with left end head, and on the right side of X-type building block, interface can engage with right end; Y type building block is following structure: length is 6cm, interface on the right side of interface, Y type building block interlude, Y type building block on the left of Y type building block, wherein on the left of Y type building block, interface can engage with interface on the right side of left end head or X-type building block, and on the right side of Y type building block, interface can engage with interface on the left of right end or X-type building block.

Intelligent behavior detection analysis method, the method adopts the aforementioned intelligent-tracking equipment based on radar detection, the data utilizing behavior point sensing apparatus to transmit and the data of data storage, teacher-student action in classroom is analyzed, the position of the type that the analysis behavior that draws occurs and generation, concrete steps are as follows:

(1) installation and debugging based on the intelligent-tracking equipment of radar detection are used

(2) opening of device and coordinatograph

(3) Data acquisition and storage

(4) fusion of data and contrast

(5) analysis of data

(6) display of data and feedback

In described step (1), each parts of the intelligent-tracking equipment based on radar detection are installed in classroom or Teaching Monitoring indoor, carry out the installation of power interface and network interface, carry out installation work; Operational outfit, whether checkout facility connects normal, carries out debugging;

In described step (2), for the coordinatograph in space, classroom, can carry out in the following manner, using the position residing for a Laser Scanning Equipment as the origin of coordinates, with this Laser Scanning Equipment trunnion axis for X-axis, with this Laser Scanning Equipment vertical axes for Y-axis, then in classroom, any point can with unique the representing of above-mentioned coordinate system.

Described step (3) is completed by register control controlling behavior point sensing apparatus, data storage.

Described step (4) and (5) complete primarily of behavior detection analyzer.The built-in behavioural analysis module of described behavior detection analyzer, this module can obtain the data that behavior point sensing apparatus obtains, and described data can be angle, distance, laser beam emitting device centre coordinate etc.; This module can data in called data memory, the measurement data of different time points or initial data are merged; By current data and passing data are contrasted, draw the coordinate of generation behavior point, by each behavior point coordinates, can analyze the measured object exterior contour of behavior occurrence positions, the area size of behavior and height, regional center position coordinates occur, this profile refers to teachers and students' body part of generation behavior.The behavior of teachers and students can be: the movement of teacher, write behavior, the raising one's hand of student, stands, walks out classroom behavior.

Described step (6) is completed by Behavior-Based control distributor, completes content and comprises (1) text importing: the type that epideictic behaviour occurs, as raised one's hand, leaving the table, stand; (2) position display: use red spots to indicate the position of behavior generation on figure, and this red spots of flickering display.

Embodiment 2:

Compared with embodiment 1, the behavior point sensing apparatus that embodiment 2 adopts adopts following structure:

Behavior point sensing apparatus is placed in rear, classroom or side, and the teacher in classroom on student and dais is convenient to observe in the visual angle of installation site; One or more laser beam emitting device corresponds to a laser receiver, the laser beam emitting device of One's name is legion and laser receiver are clouded in a spherical outer surface, these laser beam emitting devices are from the centre of sphere to surrounding Emission Lasers line, each laser rays is sent by laser beam emitting device, is received by laser receiver; The spherical structure be made up of laser beam emitting device and laser receiver has an opening in below, this opening is circular, for installing bracing frame and cable.

Embodiment 3:

With embodiment 1,2 unlike, behavior point sensing apparatus that embodiment 3 adopts adopts following structure:

Laser beam emitting device and laser receiver are positioned on the body of wall of classroom surrounding, a laser beam emitting device corresponds to a laser receiver, the laser beam emitting device of One's name is legion and laser receiver are clouded in each body of wall, each laser rays is sent by laser beam emitting device, received by laser receiver, the laser rays that laser beam emitting device is launched is perpendicular to the body of wall installing this laser beam emitting device; Described densely covered behavior point sensing apparatus forms the scanning graticule mesh in horizontal and vertical direction, form a plane of scanning motion net, when any scan line having object to stop in graticule mesh, just two-dimensional coordinate can be determined according to this by the laser rays in the horizontal and vertical direction stopped.In the below of each face wall, cable mouth is all installed, in body of wall, lays supply lines, signal transmssion line by this cable mouth.

Embodiment 4:

As shown in Figure 5, with embodiment 1, 2, 3 unlike, embodiment 4 is improve the reliability of described system, described system also comprises a behavior image capture device, this equipment is used for Real-time Obtaining religion off-the-air picture, and carry out front and back image ratio comparatively in real time, if have action behavior in discovery image, transfer the result of connected behavior detection analyzer, if the result of behavior detection analyzer is also find that there is action behavior, so do not do any operation, if the result of behavior detection analyzer is not for find action behavior, so by this information feed back to register control, register control sends command signal to Behavior-Based control distributor, light flash prompting is made by Behavior-Based control distributor.Above-mentioned behavior image capture device and above-mentioned behavior point sensing apparatus form dual fail-safe, avoid behavior not to be detected, thus affect operator and make response.

Accordingly, the intelligent behavior detection analysis method of embodiment 4, newly-increased comparison operation in step (6), concrete is: the result of detection of the intelligent-tracking equipment based on radar detection and the result of detection of behavior image capture device are compared, when (1) both results are consistent, namely be and find action behavior or do not find action behavior, then be left intact, when (2) when the intelligent-tracking equipment based on radar detection does not find action behavior, when behavior image capture device finds action behavior, then intelligent behavior detection analyzer re-starts analysis to data.

The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.

Claims (6)

1. based on an intelligent-tracking equipment for radar detection, it is characterized in that: comprise behavior point sensing apparatus, register control, behavior detection analyzer, Behavior-Based control distributor, data storage, power interface, network interface, connection cable;

Described behavior point sensing apparatus is made up of laser beam emitting device and laser receiver, and laser beam emitting device is corresponding with laser receiver to be arranged, and laser beam emitting device is used for continuous Emission Lasers line, and tranmitting frequency is 25-50 time per second;

Described data storage is for storing data, and data wherein had both comprised the initial data be stored therein in advance, also comprises the new data gathered;

Described power interface is used for providing supply of electric power to the whole intelligent-tracking equipment based on radar detection, concrete provides power supply for register control, behavior point sensing apparatus, behavior detection analyzer, behavior detection analysis control panel, Behavior-Based control distributor, data storage;

Described network interface, for transmitting data message and instruction signal between register control, behavior point sensing apparatus, behavior detection analyzer, behavior detection analysis control panel, Behavior-Based control distributor, data storage.

2. the intelligent-tracking equipment based on radar detection according to claim 1, is characterized in that:

Described register control controls the action of laser beam emitting device and laser receiver;

Described register control is also for the action of controlling behavior point sensing apparatus.

3. the intelligent-tracking equipment based on radar detection according to claim 1 and 2, is characterized in that:

Described behavior detection analyzer, judges the behavior type that in search coverage, teachers and students occur, and occurrence positions;

Described Behavior-Based control distributor, is arranged on dais, or is arranged on Teaching Monitoring indoor, and Behavior-Based control distributor is issued detection by two kinds of modes and analyzed the behavior obtained:

(1) text importing: the type that epideictic behaviour occurs, comprises and raises one's hand, leaves the table, stands;

(2) position display: use red spots to indicate the position of behavior generation on figure, and this red spots of flickering display.

4. the intelligent-tracking equipment based on radar detection according to claim 1 and 2, is characterized in that:

Described power interface and network interface adopt general aviation interface, make whole system more reliable and more stable;

Described behavior detection analysis control panel, be arranged on Teaching Monitoring indoor, it is based on the form of man-machine interaction, realize the control of operating personnel to the intelligent-tracking equipment based on radar detection, this controlling behavior can comprise: the keying of system, data receiver or importing, Data Transmission Controlling, data are deleted, the unlatching of behavior detection analysis function, the behavioural information of Behavior-Based control distributor are issued and erasing.

5. the intelligent-tracking equipment based on radar detection according to claim 3, it is characterized in that: also comprise cable protector, described cable protector is extendible cordwood system type cable protector, this extendible cordwood system type cable protector is made up of left end head, easily extensible building block, elastic telescopic section, right end, the above-mentioned building block of cable protector is hollow-core construction, and cable is housed inside in the hollow space of left end head, easily extensible building block, elastic telescopic section, right end composition; Wherein left end head, right end are be fixed on the position that body of wall or other cables pass; Easily extensible building block comprises X-type building block and Y type building block; Wherein on the left of Y type building block, interface can engage with interface on the right side of left end head or X-type building block, and on the right side of Y type building block, interface can engage with interface on the left of right end or X-type building block.

6. the intelligent-tracking equipment based on radar detection according to claim 4, is characterized in that: also comprise a behavior image capture device, and this equipment is used for Real-time Obtaining religion off-the-air picture, and carries out front and back image ratio comparatively in real time.