CN104318732A - Transformer substation field worker monitoring and management system and method based on video analysis and RFID - Google Patents
Transformer substation field worker monitoring and management system and method based on video analysis and RFID Download PDFInfo
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Abstract
The invention discloses a transformer substation field worker monitoring and management system and method based on video analysis and RFID. The management system comprises a video monitoring module for acquiring video data of a field zone, a danger zone and a key device zone, an RFID identification module for reading RFID identifier information of workers in a wireless mode and transmitting the RFID identifier information to a monitoring center through the Ethernet to conduct worker permission analysis; a voice early warning module connected with the monitoring center and used for sending early warning prompt information according to video analysis and the worker authority analysis, and the monitoring center for analyzing received monitoring videos and RFID identifier information results of the workers. The transformer substation field worker monitoring and management system and method can identify whether the field workers wear safety helmets or not and identify colors by means of a video analysis technology, utilizes an RFID technology to identify the identity permissions of the workers, can completely eradicate the potential safety hazard that the workers who do not wear the safety helmets enter a field and stray into a restricted zone and can achieve an anti-theft function.
Description
Technical field
The present invention relates to power industry transformer station field, particularly relate to the substation field personnel control management system based on video analysis and RFID and method.
Background technology
Intelligent grid is the dominant direction of current country to power network development, and each related fields that intelligent body is produced now, comprising intelligent and safe warning aspect.Safety is the prerequisite of electrical production, and only dependence people is the mechanism of work under supervision at present, often to anomalous event response lag.In recent years, video security monitoring system is applied in transformer station more and more.Along with the implementation of unattended operation transformer station, the simple function of traditional video monitoring system cannot meet the unmanned and intelligent requirements of supervisory control of substation.In computer vision process science, intelligent video analysis technology mainly comprises moving object detection, tracking, classification scheduling algorithm, and intelligent video monitoring system can reduce manpower consumption effectively, improves accuracy and the real-time of Video processing.Therefore, the inexorable trend that intelligent video analysis technology is transformer substation video monitoring development is introduced.In recent years, technology of Internet of things, receives and pays close attention to more and more widely, causes the attention of countries in the world and the increasing of research dynamics.
Internet of Things typically refers to has complete perception ability to object, has the attached article of Intelligent treatment and reliable transfer capability and the information network of object to information.By Intelligent sensing device, through transmission network, object information is sent to the information processing centre specified, forms people and thing, the intelligent network that thing is connected with thing.RFID is the abbreviation of Radio Frequency Identification, utilizes radio frequency signal identification specific objective and reads and writes related data, and without the need to setting up machinery or optical contact between recognition system and specific objective.And RFID technique allows the gordian technique that can communicate in internet between article, store standard in RFID label tag and there is the information of interoperability, by communication network, they being collected infosystem automatically, realize the identification of article.Intelligent video analysis technology is combined with the RFID technique in Internet of Things in being applied in transformer station hazardous area safe early warning, tool is of great significance.
Transformer station is the emphasis place of electrical production, must be monitored all kinds of situations such as its environmental aspect, equipment operation, safety in production, the situation of great threat to be formed to safety in production especially be monitored, to take precautions against fire, blast, leakage, stolen and malicious sabotage etc.The equipment that has in substation field that Keep Clear-High Voltage in a large number; in order to ensure personnel's device security, require allly to enter all necessary safe wearing cap of all personnel that substation field (except the region that office, pulpit, protection room, duty room, maintenance teams and groups room and life green belt etc. do not need safety helmet protect) carries out service work, study, inspection, visit, work.And according to personnel's different in kind, the safety helmet worn has dividing, in state's electric system of strict grade, safety helmet color specifies according to visual identifying system (VI): white represents leader, blueness represents managerial personnel, and yellow represents workmen, and redness represents Migrant women.
In the safety in production specification of transformer station, very strict to the requirement entering converting equipment working-yard, do not wear cap if do not allowed and enter scene, also do not allow the people of different identity to cross the border illegal operation etc.But violate security regulations not safe wearing cap, cross into the situation of district, illegal operation etc. of threat and also happen occasionally, what bring is potential safety hazard.If can by monitor video data to enter working-yard personnel's safe wearing cap situation and cross over forbidden zone carry out video analysis identification, by RFID label tag, different rights is set to the personnel entering substation field, the generation of the phenomenon such as threatening area and illegal operation that so do not wear a safety helmet with regard to energy Timeliness coverage, enter.Effectively can be monitored the Construction Condition of each equipment room by the industrial television monitoring system that transformer station is existing, security personnel can observe directly workmen's whether safe wearing cap by video, or has criminal manipulation.But the monitored picture due to a transformer station is general all more than 20, adopts artificial mode to picture of patrolling, greatly can reduce the validity of monitoring.Research shows, when a people observes two monitored pictures simultaneously, within 10 minutes, can miss the useful information of 45%, within 22 minutes, can miss the useful information of 95%, observe simultaneously multiple monitored picture then notice more disperse.Therefore the system and software that can automatically analyze industrial television monitoring system in the urgent need to one, can monitor workmen's behavior of whole transformer station so on one's own initiative, intelligently, all sidedly; To ensure the safety of substation field.
Because the personnel many times entering transformer station do not wear color in strict accordance with grade distinguishing in safe wearing cap color, hazardous location situation may be strayed into like this for Migrant women (as study, visitor etc.), also may there is the personnel's maloperation equipment not possessing operating right, no matter have major safety risks to personnel or equipment.Determine whether safe wearing cap by video analysis and whether have people near forbidden zone, personnel's authority is distributed again by RFID label tag, operating right is not possessed close to explosive area, close to equipment once the personnel that find that there is, system can start sound warning, and by video pictures in passing related personnel and preserving video recording and event details, greatly improve on-the-spot security monitoring and managerial ability.
Substation safety crime prevention system is generally installed to have and is prevented from breaking in also and transformer station's fence guard against theft and alarm system of alarm, is made up of fence front end and main control system two parts.Fence front end is arranged on transformer station's surrounding enclosure wall, installs the main control system of fence, main control system electron emission pulse signal in transformer station's machine room.Fence special metals line, there is flexible and flexible feature, larger weight can not be born, the cable of fence is with high-voltage electronic pulse, when there being people illegally cross or cut off fence, electronic cable will inevitably be fractureed and open circuit be occurred, when invader touches cable, strong electro photoluminescence can be subject to immediately and send warning acoustic-optic indicator, and by phone dialer, alerting signal be passed to Surveillance center of power administration by public telephone network.
Consider that color characteristic that work of transformer substation personnel enrich is as safety helmet, working cloth etc. with it, color characteristic is easily subject to illumination impact effect in tracing process simultaneously, document [3] introduces particle filter tracking color characteristic and histogram of gradients feature, first three of RGB color components are quantized to different gray levels respectively, and make normalized; Then center WITH CROSS GRADIENTS descriptor is used, by segmented construction histogram of gradients.Gradient Features description just in time compensate for color characteristic and lacks the sign of shape facility.For human body abnormal behaviour in electrical production, as fallen down, boxing, rehabilitate, open an umbrella and the behavior such as de-working cloth, contemplate corresponding human body contour outline geometric model.After solving above model information, standard is made to abnormal behaviour classification, then on the basis of support vector machine, according to the profile geological information structural classification device of training sample, classification has been estimated to the carrying out that reality occurs.But can only be distinguished by the color characteristic of staff, effectively can not ensure differentiation and the identification of authority.
Document [the research and apply of intelligent video analysis algorithm in electric substation, Huang Siqian, Xi'an Communications University, Master's thesis, 2009] based on the target detection in intelligent video analysis algorithm and track algorithm, have studied the intelligent video surveillance of worker safety's cap wear condition in transformer station, propose a kind of detection algorithm based on color space and centroid position, and by experiment its effect is verified.The operating right of staff is not distinguished, effectively can not ensure the safety of transformer station's important area.
Document [utilization of UWB wireless location technology in safety helmet with alarm, Chen Tao] safety helmet with alarm is that electrical production provides one safety curtain.Because traditional induction safety helmet with alarm precision is low, error large, so be not used widely in the substation of facility compact.Along with the development of wireless communication technology, the positioning precision that emerging UWB radio network technique has in location is high, and penetration power is strong, advantages such as transfer rate is fast, low cost and low-power consumption and become the focus of following wireless location technology.UWB wireless location technology is applied to transformer station's safety helmet with alarm system, make safety helmet with alarm have substantive breakthroughs in the utilization of transformer station.But UWB wireless location technology can not be distinguished the color of safety helmet and authority.
Document [electric power field intensity warning helmet, Wen Shengdong], according to alternating electric field sensor measurement principle, measures power-frequency electric field strength; Under the security protection performance not changing common safety helmet, design the electric field measurement acoustic-optic alarm that can be placed in cap, make it reach field intensity forewarning function.Work about electric power personnel, carrying out the work such as electric power overhaul, test, especially climb shaft tower, close to high voltage alive equipment, or when being in fatigue state, may rush high field area by mistake.If do not warned in time, staff may be in high field intensity regional work for a long time, and this very easily causes personal injury.But, adopt the Work places safety warning method of electric field measurement mode, still rare research both at home and abroad.But electric field measurement mode can not be distinguished the color of safety helmet and authority.
Patent " substation field safe wearing cap intelligent monitoring early warning system, application number 201410279038.7 " a kind of substation field safe wearing cap intelligent monitoring early warning system is proposed, utilize rpyroelectric infrared sensing module to monitor to enter with or without operating personnel, graphical analysis is gathered in conjunction with camera head monitor device, confirm operating personnel's whether safe wearing cap, if correct safe wearing cap, then allow to enter, do not have safe wearing cap then to close gate inhibition not allow to enter, and start voice alarm module audio alert, start GSM module telegraphone and notify operations staff on duty.But rpyroelectric infrared sensing technology can not be distinguished the color of safety helmet and authority.
Summary of the invention
For not knowing of above prior art, the invention provides a kind of substation field personnel control management system based on video analysis and RFID and method.The present invention determines whether safe wearing cap by video analysis and whether has people near forbidden zone, personnel's authority is distributed again by RFID label tag, operating right is not possessed close to explosive area, close to equipment once the personnel that find that there is, system can start sound warning, and by video pictures in passing related personnel and preserving video recording and event details, greatly improve on-the-spot security monitoring and managerial ability.
Concrete technical scheme of the present invention is as follows:
Based on the substation field personnel control management system of video analysis and RFID, this management system comprises:
Video monitoring module, for the video data in collection site, explosive area and key equipment district, is transferred to Surveillance center by Ethernet and carries out video analysis;
RFID identification module, wirelessly reads the FRID label information of personnel, and is transferred to Surveillance center by Ethernet and carries out personnel's privilege analysis;
Sound warning module, is connected with Surveillance center, sends early warning information according to video analysis and personnel's privilege analysis;
Surveillance center, for analyzing the monitor video received and personnel's FRID label information result, and drives sound warning module according to analysis result and carries out data storage.
Further, described Surveillance center comprises:
Analysis module, to substation field personnel whether safe wearing cap, safety helmet color distinguish, and detect whether have personnel close to and for entering explosive area and near equipment region;
RFID privilege analysis module, analyzes with whether the personnel's authority in database is corresponding for No. ID that personnel is worn to RFID label tag;
Phonic warning control module, according to the difference of video analysis and personnel identity authority, sends alarm speech signal;
Data memory module, for storing the video data gathered and RFID label tag ID data.
Further, described RFID identification module comprises:
Active RFID reader and Ethernet output interface RJ45, described RFID reader wirelessly reads the FRID label information of personnel, and is transferred to Surveillance center by output interface RJ45.
Based on the substation field personnel control management method of video analysis and RFID, this management method comprises the steps:
1) video monitoring module gathers the personnel's image entering into substation field, and the image information of collection is sent to the analysis module of Surveillance center, analysis module judges whether that someone enters substation field, and whether staff wears safety helmet, sound alarm is carried out to the personnel of non-safe wearing cap, and report Surveillance center, further colour recognition is carried out to the personnel of safe wearing cap;
2) color of analysis module to safety helmet of Surveillance center is distinguished, if predetermined color, then judge whether staff crosses over hazardous location and visual plant region, if someone is close to predeterminable area, then carry out sound alarm by phonic warning module and start RFID reader module, the FRID label information that RFID reader module is worn by reading personnel, starts to carry out RFID identity authority discriminance analysis;
3) RFID reader module is compared to personnel's authority that staff wears in No. ID of RFID label tag and database:
To the personnel for entering RFID identified region, need to carry out RFID identity authority recognition at setting regions edge: carry out safety instruction for allowing to enter hazardous location operating right personnel, and by data memory module, video pictures is stored, if RFID label tag authority does not meet enter this zone permission, then carry out sound alarm by sound warning module not allow to enter, report Surveillance center simultaneously;
To the personnel entering image scene identified region, the analysis module of Surveillance center is periodically to safety helmet color with whether safe wearing cap identifies, if find non-safe wearing cap personnel, carry out sound alarm by sound warning module, remind moment safe wearing cap.
Advantage of the present invention is:
(1) may be used for the hazardous location protection in transformer station, change the present situation of single image monitoring.
(2) real-time automatic monitoring and the alarm of unattended operation transformer station can really be realized.
(3) this systematic difference can enter the safety of the not operation personnel of transformer station and the safety of significant risk equipment by available protecting.
(4) can store record illegal act, as examination standard, the behavior of specification transformer station personnel.
(5) method of this image recognition and RFID authentication can be applied to the monitoring of other industry hazardous location.
Accompanying drawing explanation
Fig. 1: present system structure principle chart;
Fig. 2: application implementation illustration of the present invention;
Fig. 3: functional structure chart of the present invention;
Fig. 4: the inventive method process flow diagram.
Embodiment
As shown in Figure 1-2, native system realizes based on Video Analysis Technology and RFID technique, and Video Analysis Technology is distinguished the safety helmet of substation field personnel and safety helmet color, and detect whether have personnel close to and for entering explosive area and near equipment; Recycling RFID technique is carried out further identity authority and is confirmed, carries out sound early warning to the behavior not meeting safety, and carries out record storage to violation event, assesses for subsequent analysis.
System is made up of video monitoring module, RFID identification module, safety helmet, RFID label tag, sound warning module, Ethernet switch and Surveillance center.Functions and composed as follows.
Wherein, the video data in video monitoring module collection site, explosive area and key equipment district, the analysis module being transferred to Surveillance center by Ethernet carries out video analysis.Be made up of high-speed holder spherical camera, network video coder, Ethernet output interface RJ45, the wherein video data in on-the-spot, the explosive area of camera collection and key equipment district, network video coder carries out compressed encoding and the chnnel coding of video data, and the analysis module being transferred to Surveillance center by Ethernet output interface RJ45 carries out Video processing.
RFID identification module mainly comprises 2.4GHz active RFID reader and Ethernet output interface RJ45, and RFID reader wirelessly reads personnel's FRID label information, is transferred to Surveillance center carries out personnel's privilege analysis by Ethernet.The reading range of RFID reader is adjustable, can cover the default hazardous location of video analysis and visual plant region.
RFID label tag adopts 2.4GHz active RFID tag, and present situation is Wrist belt-type, and worn by the personnel entering substation field, RFID label tag has unique ID.RFID label tag has permission restriction, three kinds of authorities are set and divide Migrant women (can not arrive explosive area, can not operating equipment), transformer station general staff (tasks such as inspection, tour, operation can be completed, but can not operating equipment), specific responsibility personnel (possessing the authority entering any region and equipment operating).
Safety helmet is worn by entering on-the-spot personnel, divides red, yellow, blue, white.
Sound warning module core is ISD4000 voice module, RS485 communication interface and audio output interface are provided, realize speech play control for connecting Surveillance center and play playback loudspeaker, loudspeaker are arranged on outdoor higher position, can transmission range 200 meters, whole transformer station scope can be covered.Early warning is sent by RS485 interface according to video analysis is different with personnel identity authority by Surveillance center.
Surveillance center's chief component is PC and system software, PC is connected the data system software that receiver, video supervising device and RFID reader send and analyzes the monitor video received and personnel RFID authority with the interface RJ45 of Ethernet switch, drive sound prior-warning device according to analysis result and eject picture alarm, and carrying out data storage.Comprise the function such as privilege analysis, phonic warning control, print data memory of data receiver, video analysis, personnel's RFID label tag.Analysis module mainly to substation field personnel whether safe wearing cap, safety helmet color distinguish, and detect whether have personnel close to and for entering explosive area and near equipment region, hazardous location and equipment region can according to actual set.RFID privilege analysis mainly wears No. ID of RFID label tag according to personnel corresponding with the personnel's authority in database.Phonic warning controls based on video analysis realization different from personnel identity authority, there is provided several alarm voice such as " do not wear a safety helmet, danger, please leaves fast ", " work zone is dangerous; you can not enter ", " visual plant, non-full-time personnel please leave at once ".Data storage section occurs not wearing a safety helmet according to scene, lack of competence enters explosive area, logout video pictures, personnel RFID label tag ID and time of origin close to visual plant.Software system structure and function are as shown in Figure 3.
Another object of the present invention also provides a kind of substation field personnel control management method based on video analysis and RFID, and the method comprises the steps, as shown in Figure 4.
1, when personnel enter substation field image recognition region, video monitoring module collects field staff's video, deliver to the analysis module of Surveillance center, analysis module utilizes the moving object detection in Video Analysis Technology to judge whether that someone enters, find that there is people then to continue to analyze whether wear safety helmet, sound alarm is carried out to the personnel of non-safe wearing cap, and reports Surveillance center; Further colour recognition is carried out to the personnel of safe wearing cap;
2, the analysis module of Surveillance center utilizes color histogram analysis method in image procossing, the color of safety helmet is distinguished, if predetermined color, then proceed hazardous location and visual plant region and cross over analysis, if someone is close to predeterminable area, then carries out sound alarm and start RFID reader module.The FRID label information that RFID reader module is worn by reading personnel, starts to carry out RFID identity authority discriminance analysis.
3, RFID reader module utilizes RFID privilege analysis method namely to wear No. ID of RFID label tag according to personnel to compare with the personnel's authority in database.For the personnel for entering RFID identified region (namely closer to hazardous equipment), need to carry out RFID identity authority recognition at setting regions edge: enter hazardous location operating right personnel for allowing, do not carry out sound alarm, can carry out safety instruction, interlock camera picture stores; If RFID label tag authority is not inconsistent namely not meet enter this zone permission, then carries out sound alarm by sound warning module and do not allow to enter, report Surveillance center simultaneously.
4, to the personnel entering image scene identified region, the analysis module of Surveillance center is periodically to safety helmet color with whether safe wearing cap identifies, if find non-safe wearing cap personnel, sound alarm is carried out by sound warning module, so that to carrying out safe early warning with the other staff having operating right personnel to enter, and remind moment safe wearing cap.
5, sound warning module realizes based on video analysis and personnel identity authority Different Results, there is provided several alarm voice such as " do not wear a safety helmet, danger, please leaves fast ", " work zone is dangerous; you can not enter ", " visual plant, non-full-time personnel please leave at once ".
The present invention has following features:
(1) utilizing Video Analysis Technology to whether wearing safety helmet and color identifies, more line identification being carried out to predeterminable area, stops to enter the on-the-spot potential safety hazard not wearing a safety helmet and be strayed into forbidden zone, and realize anti-theft feature.
(2) utilize Video Analysis Technology to combine to the identity authority recognition of crossing over forbidden zone identification and RFID, effectively guarantee the security protection to hazardous location.
(3) based on the sound alarm joint-action mechanism in the identification of safety helmet color image and RFID authority recognition, the behavior eliminated danger.
(4) transformer station hazardous location is divided into image recognition region and RFID identified region two-stage, relevant interlock identification make personnel and equipment safer.
(5) do not wear a safety helmet, unauthorized crosses over the timely record of event behavior such as forbidden zone, can be used as important reference frame.
Claims (4)
1., based on the substation field personnel control management system of video analysis and RFID, it is characterized in that, this management system comprises:
Video monitoring module, for the video data in collection site, explosive area and key equipment district, is transferred to Surveillance center by Ethernet and carries out video analysis;
RFID identification module, wirelessly reads the FRID label information of personnel, and is transferred to Surveillance center by Ethernet and carries out personnel's privilege analysis;
Sound warning module, is connected with Surveillance center, sends early warning information according to video analysis and personnel's privilege analysis;
Surveillance center, for analyzing the monitor video received and personnel's FRID label information result, and drives sound warning module according to analysis result and carries out data storage.
2. the substation field personnel control management system based on video analysis and RFID according to claim 1, it is characterized in that, described Surveillance center comprises:
Analysis module, to substation field personnel whether safe wearing cap, safety helmet color distinguish, and detect whether have personnel close to and for entering explosive area and near equipment region;
RFID privilege analysis module, analyzes with whether the personnel's authority in database is corresponding for No. ID that personnel is worn to RFID label tag;
Phonic warning control module, according to the difference of video analysis and personnel identity authority, sends alarm speech signal;
Data memory module, for storing the video data gathered and RFID label tag ID data.
3. the substation field personnel control management system based on video analysis and RFID according to claim 1, it is characterized in that, described RFID identification module comprises:
Active RFID reader and Ethernet output interface RJ45, described RFID reader wirelessly reads the FRID label information of personnel, and is transferred to Surveillance center by output interface RJ45.
4., based on the substation field personnel control management method of video analysis and RFID, it is characterized in that, this management method comprises the steps:
1) video monitoring module gathers the personnel's image entering into substation field, and the image information of collection is sent to the analysis module of Surveillance center, analysis module judges whether that someone enters substation field, and whether staff wears safety helmet, sound alarm is carried out to the personnel of non-safe wearing cap, and report Surveillance center, further colour recognition is carried out to the personnel of safe wearing cap;
2) color of analysis module to safety helmet of Surveillance center is distinguished, if predetermined color, then judge whether staff crosses over hazardous location and visual plant region, if someone is close to predeterminable area, then carry out sound alarm by phonic warning module and start RFID reader module, the FRID label information that RFID reader module is worn by reading personnel, starts to carry out RFID identity authority discriminance analysis;
3) RFID reader module is compared to personnel's authority that staff wears in No. ID of RFID label tag and database:
To the personnel for entering RFID identified region, need to carry out RFID identity authority recognition at setting regions edge: carry out safety instruction for allowing to enter hazardous location operating right personnel, and by data memory module, video pictures is stored, if RFID label tag authority does not meet enter this zone permission, then carry out sound alarm by sound warning module not allow to enter, report Surveillance center simultaneously;
To the personnel entering image scene identified region, the analysis module of Surveillance center is periodically to safety helmet color with whether safe wearing cap identifies, if find non-safe wearing cap personnel, carry out sound alarm by sound warning module, remind moment safe wearing cap.
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