CN104865918A - GIS-based power monitoring system - Google Patents
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
- G05B19/41855—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication by local area network [LAN], network structure
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to a GIS-based power monitoring system. The objective of the invention is to reduce data volume of which the transmission is required by a GIS system in security monitoring of field power equipment. The GIS-based power monitoring system includes a first-level monitoring unit, a second-level monitoring unit, a storage unit, a processing unit, a geo-targeting unit and an alarm unit; the processing unit includes a temperature detecting unit which detects the temperature of external environment; the first-level monitoring unit transmits acquired information to the processing unit; the alarm unit emits alarm signals according to the output information of the processing unit; and a control unit controls the first-level monitoring unit and the second-level monitoring unit to be switched between a normally-open state and a normally closed state.
Description
Technical field
The present invention relates to a kind of electric power safety detection technique, specifically a kind of electric power monitoring system based on GIS.
Background technology
Field electric equipment, if oil-immersed type transformer, oil switch, capacitor, cable, accumulator, low-voltage circuit, power distribution equipment, opertaing device, electronic equipment, pulpit etc. are containing a large amount of combustible, as the hydrogen etc. of the electric wire and cable jacket of the organic polymers such as transformer oil, circuit-breaker oil, Polyvinylchloride, insulating board, accumulator release.Along with the utilization factor of power equipment and enforcement increases, some operation life is longer, artificial or the natural cause of being subject to had is destroyed and occurs that operation troubles even affects the normal operation of power equipment, and serious goes back fire hazard, brings larger injury to the environment residing for power equipment.Such as, cause under high-risk moist running environment the insulation fault of outdoor power equipment in the whole nation from south to north many places have record, it is operation power maintainer and equipment vendors' very stubborn problem always.Wherein, how can the humidity of discovery power equipment inside early or the situation of condensation, and report to the police arranges process particularly key to operating maintenance personnel in time.Along with the propelling day by day of domestic intelligent grid strategy and distribution automation, to power equipment, the equipment particularly run under outdoor severe environmental conditions carry out implementing effective running state monitoring and fast fault alarm will become the trend of future development.Therefore, the security of development to field electric equipment of electric power is had higher requirement.
Current electric power apparatus monitoring device is based on common smoke-temperature sensing type combined type detector and electric parameter monitoring, and this combined type detector only detects for single parameter temperature or smog.But this monitor mode needs to be the various sensor of power equipment one direct-open in the wild, and also there is consume when these sensors work under long-term rugged surroundings, and the monitoring cost causing field electric equipment remains high.In addition, need the data volume of transmission all comparatively large in the supervisory system based on generalized information system at present, be unfavorable for applying of this kind of supervisory system.
Summary of the invention
The present invention needs the data volume of transmission to reduce generalized information system when field electric device security is monitored, provide a kind of electric power monitoring system based on GIS, comprise one-level monitoring unit, secondary monitoring unit, storage unit, processing unit, geo-location unit and alarm unit, processing unit comprises the temperature detecting unit detecting ambient temperature, the information collected is sent to processing unit by one-level monitoring unit, described alarm unit sends alerting signal according to the output information of processing unit, described control module controls one-level monitoring unit and secondary monitoring unit switches between normally open and normally off.
Further, described one-level monitoring unit is video acquisition unit.
Further, described video acquisition unit is infrared imaging collecting unit.
Further, described secondary monitoring unit comprises fire alarm monitoring unit, electromagnetic anomaly monitoring unit and vibration monitoring unit.
Further, described fire alarm monitoring unit comprises: signal transacting A/D module, CPU module, power module, communication unit and built-in multiple sensors; Described sensor gathers electric power place fire characteristic signal; The CPU module of described fire alarm monitoring unit is responsible for receiving the signal collected with processes sensor, described signal transacting A/D module be used for by in-situ measurement to the analog quantity of dissimilar fire characteristic signal convert the digital signal being convenient to CPU module process to.
Further, described processing unit comprises: load module, output module, display module, CPU module and power module; The multi-Dimensional parameters that the CPU module of described monitoring main control computer transmits according to the CPU module of fire alarm monitoring unit, make the judgement with or without fire and fire risk, and in conjunction with the manual setting of load module, the information of display and movement content are passed to display module and output module respectively.
Further, described sensor be selected from following sensor two or more, to form the multiple synchronizing detection comprising multi-Dimensional parameters and implement multiple parameters, for gathering the sensor of the characteristic parameter of electric power place fire characteristic signal, described characteristic parameter comprises temperature, humidity, and smog, the presence or absence of SO2, HCl, NOx, CO, CO2 or concentration, also comprise the video sensor for carrying out video monitoring to the on-the-spot visible ray in electric power place.
Further, described load module is used for manually inputting parameters, alarming threshold value is set, described display module whether shows and display information, described output module work whether and output content.
Further, described display module shows electric power place fire characteristic signal, characteristic ginseng value and alarming threshold value, occurs fire hazard or condition of a fire time.
Further, described output module carries out sound and light alarm and fire-fighting link action, and when the fire signal detected exceedes the alarming threshold value of setting, output alarm signal, controls fire-fighting link device and start fire-fighting link work at any time when needed.
Compared with prior art, technological merit is in the present invention:
1. reduce the data traffic needed for generalized information system reception information, because do not need the monitoring result of multiple sensors to be all sent to GIS server, and just according to the result feedback of video monitoring to server, so just greatly reduce the data needing between electric apparatus monitoring end and GIS server to exchange.
2. only rely on the video information of video acquisition unit collection to identify under normal circumstances and comprise electric, environment, and/or the various faults that extraneous human factor causes, pinpoint the problems and give the alarm, solving and need long-term to open multiple sensors and the high difficult problem of the safety monitoring system cost that brings.
3. the information based on infrared video collection is compared with the reference information under the various external temperature conditions of preserving in advance, and the signal whether opening compound sensor is provided according to comparative result, the stability requirement of remote monitoring server can be reduced, thus be conducive to supervisory system and apply on more wide region.
4. in fire alarm monitoring unit, CPU module expanded function is strong, the sensor of multiple characteristic parameter can be comprised video sensor can be compounded in a combined type detector after combination in any, achieve synchronizing detection and the video detection of fire multiple parameters, thus temperature, humidity, SO are comprised to electric power place
2, HCl, NO
x, CO, CO
2carry out complete detection Deng the characteristic signal in interior fire development each stage, avoid and fail to report, report by mistake.
Accompanying drawing explanation
Fig. 1 shows the one-piece construction block diagram of the electric power monitoring system based on GIS of the present invention;
Fig. 2 is detection data anastomosing algorithm process of the present invention;
Fig. 3 shows the workflow diagram of fire alarm monitoring unit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
Based on the electric power monitoring system of GIS one-piece construction block diagram as shown in Figure 1, comprise one-level monitoring unit, secondary monitoring unit, storage unit, processing unit, geo-location unit and alarm unit, processing unit comprises the temperature detecting unit detecting ambient temperature, the information collected is sent to processing unit by one-level monitoring unit, and described alarm unit sends alerting signal according to the output information of processing unit.Described one-level monitoring unit is video acquisition unit, and preferably, described one-level monitoring unit is infrared imaging collecting unit.Described secondary monitoring unit comprises fire alarm monitoring unit, electromagnetic anomaly monitoring unit and vibration monitoring unit.
The monitoring grade of described secondary monitoring unit is higher than one-level monitoring unit and it starts the security monitoring to power equipment under control of the processing unit according to the monitor message of one-level monitoring unit.When secondary monitoring unit is not unlocked, described processing unit control one-level monitoring unit is in normally open and secondary monitoring unit is in normally off.
Before the electric power monitoring system based on GIS of the present invention does not have production run, first gather by infrared imaging collecting unit (being such as infrared camera) image that this power equipment normally works at different ambient temperatures and preserve in the memory unit.When real work, infrared image under the actual condition that infrared imaging collecting unit (being such as infrared camera) collects, processing unit according to himself with temperature detecting unit (such as, thermometer) measures ambient temperature, and according to this environment temperature, the infrared image under actual condition is mated with the infrared image prestored in storage unit, is compared in the diff area matched, below meeting, a period of time of two conditions just makes above-mentioned processing unit start secondary monitoring unit, and transmit the gps coordinate at this power equipment place by alarm unit GIS server distally and secondary monitoring unit is activated this Status Change information:
Condition 1: mate the position of diff area that obtains and be no more than predetermined threshold value and volume is more than or equal to preset vol threshold value near the distance of power equipment;
Condition 2: mate the diff area that obtains and be colour temperature and colour temperature difference exceeds default high temperature threshold value or lower than the low temperature threshold preset.
Secondary monitoring unit is opened and when not collecting preset parameter, described processing unit control one-level monitoring unit is in normally off and secondary monitoring unit is in normally open; Preset parameter mentioned here comprises the parameter that the multiple sensors included by secondary monitoring unit collects.After secondary monitoring unit collects preset parameter, described processing unit control one-level monitoring unit is in normally open and secondary monitoring unit is in normally off.
When the above-mentioned state occurred between one-level monitoring unit and secondary monitoring unit switches, alarm unit also GIS server all distally transmits the information that the gps coordinate at this power equipment place and one-level monitoring unit or secondary monitoring unit are activated this Status Change.After GIS server receives this modification information, power equipment duty layer is upgraded by the mapping module that GIS server has, thus supervisor can be known, and the duty of the current power equipment that each works in the wild is for normal or be in fault.Such as, if the secondary monitoring unit of the electric power monitoring system based on GIS of certain power equipment is unlocked but not yet obtains the testing result of fire alarm, vibration or electromagnetic anomaly, then this power equipment is in suspected malfunctions state, represents with the pilot lamp of yellow.If detect through secondary monitoring unit and confirm fire alarm, vibration (such as earthquake occurring) and/or electromagnetic anomaly (such as overload or underload or magnetic interference), the state of this power equipment on the map of then GIS server is just marked as redness, represents fault recognition state.Now just can liaison maintenance personnel carry out to scene reconnoitring and keeping in repair.
For avoiding the failing to report of electric power fire composite detecting device, reporting by mistake, the characteristic signal of electric power fire composite detecting device to electric power fire different stages of development detects comprehensively, video monitoring is carried out to on-the-spot visible ray, therefore set temperature, smog, humidity, SO simultaneously
2, HCl, NO
x, CO, CO
2and polytype sensor such as video, the sensor of at least built-in 2 types in each fire alarm monitoring unit.For smog, the characteristic parameter of sensor collection is whether smog exists.For gas, the characteristic parameter of sensor collection is the concentration of gas.
According to a preferred embodiment of the invention, fire alarm monitoring unit comprises built-in multiple sensors, signal transacting A/D module, CPU module, wireless communication module and power module, and number of probes depends on the number of fire characteristic signal.The simulating signal that in fire alarm monitoring unit, each sensor collects, become the digital signal of the convenient process of the CPU module of fire alarm monitoring unit by signal transacting A/D module converts after, be transferred to the CPU module of fire alarm monitoring unit, then be transferred to the processing unit of the electric power monitoring system based on GIS.In a preferred embodiment, signal transacting A/D module selects ADS1110, and the CPU module of fire alarm monitoring unit adopts S08D260.
The house dog of the external protected data of CPU module of fire alarm monitoring unit, prevents raw data to be tampered, and as required for expanding the number of probes in fire alarm monitoring unit.In some cases, one or several sensor is not only comprised in described fire alarm monitoring unit, but once integrated more (such as tens) sensor, be used for surveying multiple fire signal, the RAM that at this time often CPU module carries cannot meet and stores a large amount of data simultaneously.Therefore, CPU module must possess external RAM function.
It should be noted that, above-mentioned expansion can have restriction: CPU module Received signal strength ability and the data rate of considering into fire alarm monitoring unit, in preferred embodiment of the present invention, in each fire alarm monitoring unit, number of probes is no more than 20, can carry out synchronizing detection to the fire signal characteristic parameter of no more than 20 kinds.
In a preferred embodiment, the CPU module of fire alarm monitoring unit adopts single-chip microcomputer or the microprocessor with interrupt pin and reset pin.House dog adopts MAX708 chip.MAX708 is the monitoring of a kind of power supply of microprocessor and watchdog chip, can export high level effectively and the reset signal of Low level effective simultaneously.Reset signal can be inputted by VCC voltage, hand-reset, or by independently comparer triggering.Thresholding is 1.25V, can be used for supervision the 2nd power supply signal for the independent comparators of power-fail or the warning of low power supply and provide the warning function of Voltage Drop.This function is for device sends the normal shutdown before reset signal, sends alarm or electrical source exchange and data protection and consider to operator.
Processing unit based on the electric power monitoring system of GIS comprises load module, output module, display module, CPU module (for avoiding and the obscuring of other CPU module, being called message processing module below), wireless communication module and power module.Message processing module based on the processing unit of the electric power monitoring system of GIS is the message processing module adopting ARM9 kernel, message processing module receives the detectable signal that fire alarm monitoring unit transmits, carry out merging and by the various Intelligent Fusion algorithms extensively adopted in prior art, according to actual complex degree and judge timeliness requirement etc., preferably certain Intelligent Fusion algorithm judges fire condition and fire risk.In a preferred embodiment, the processing unit based on the electric power monitoring system of GIS selects MK60DN512ZVLQ.In another embodiment, the load module based on the processing unit of the electric power monitoring system of GIS is keyboard or some buttons, and output module adopts liquid crystal display.
Whether show and show information, output module work whether and output content etc. by the alarming threshold value manually arranging the characteristic parameter of multiple electric power place fire of load module, display module (being generally display screen).Relevant fire information (comprise fire characteristic signal, characteristic ginseng value, alarm threshold value, occur fire hazard or condition of a fire time etc.) is clearly shown by display module, makes the clear and definite fire condition of staff, and is reported to the police by output module.Message processing module reserves the RS485 interface carrying out communication with fire-fighting link device in addition, controls fire-fighting link device and starts fire-fighting link work at any time when needed.Described fire-fighting link device comprises automatic nozzle (water spray and/or foam), rolling screen door, fire extinguishing pump, spray pump, smoke exhaust fan, pressure fan, air port, exhaust smoke valve, elevator control gear, forceful electric power switching device shifter etc.In a preferred embodiment, what the RS485 interface based on the processing unit of the electric power monitoring system of GIS connected is relay, by the action of this Control fire-fighting link device.
What the Intelligent Fusion algorithm in the present invention adopted is Multi-source Information Fusion algorithm commonly known in the art.Be specifically applied in the present invention, detection data message fusion calculation process as described in Figure 2.Fusion calculation process comprises Information Level, characteristic layer and decision-making level.The mentality of designing of each layer is: Information Level is responsible for the collection of on-the-spot raw data, and field data data are temperature, smog, CO, HCl, SO
2, NO
x, CO
2, humidity, the on-the-spot main signal before wherein fire occurs and when fire just occurs is temperature, smog, CO, HCl, and afterwards on-the-spot main signal has occurred and occurred fire is SO
2, NO
x, CO
2, humidity.Because on-site signal is analog quantity, the interference being easily subject to surrounding environment is unstable, needs to carry out a series of process as filtering, amplification etc., is processed into the x that characteristic layer receives respectively
1, x
2, x
3, x
4, x
5, x
6, x
7, x
8.The output signal of characteristic layer to Information Level utilizes neural network algorithm to merge: before occurring for fire or when fire just occurs, fire recognition is become naked light probability y
1, smoldering fire probability y
2and without fiery probability y
3; After having occurred for fire or having occurred, because fire can produce danger to field apparatus and personnel, therefore by dangerous for fire recognition forming apparatus probability y4, personnel hazard's probability y5.The condition of a fire that characteristic layer exports and dangerous probability have certain fuzzy type, especially when three kinds of condition of a fire probability or fire risk probable value are all near 50%, be difficult to judge the current condition of a fire and danger, therefore need that these may be sent into decision-making level with the information of ambiguity and carry out obfuscation reasoning, export fire and final Probability p occurs
1with fire hazard danger coefficient p
2.This specific design of three layers of Information Level, characteristic layer and decision-making level and enforcement are that those skilled in the art easily can realize according to Multi-source Information Fusion algorithm under the prerequisite not paying creative work, do not do superfluous old at this.
The workflow diagram of electric power fire composite detecting device of the present invention as shown in Figure 3.First electric power place fire signal characteristic parameter is gathered, through processing and judging the condition of a fire after signal characteristic parameter transmission to the message processing module of the processing unit of the electric power monitoring system based on GIS by the sensor in fire alarm monitoring unit.If judge on firely to report to the police immediately.Mainly raise with temperature because of Initial Stage of Fire or discharge a large amount of smog for clear signal feature, if so the not on fire but temperature detected or smokescope raise and exceed alarming threshold value, also reported to the police immediately.According to field condition if necessary, fire-fighting link device is started.If do not exceed alarming threshold value without the condition of a fire or the temperature detected or smokescope, do not report to the police, continue monitoring.
The structure & working mechanism of electromagnetic anomaly monitoring unit of the present invention and vibration monitoring unit is similar with fire alarm monitoring unit, and just the type of sensor is changed to: electromagnetic anomaly monitoring unit only includes voltage sensor, current sensor, magnetic field sensor; Vibration monitoring unit only includes vibration transducer.Therefore, do not repeat them here.
The above-mentioned description to embodiment can understand and application invention for ease of those skilled in the art.Person skilled in the art obviously easily can make various amendment to these embodiments, and this General Principle illustrated is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here.Those skilled in the art are according to the announcement of invention, and the improvement made for the present invention and amendment all should in protection scope of the present invention.What provide in above-described embodiment is the device model adopted in a kind of embodiment for the technical scheme of request of the present invention protection, and the device of request protection in fact of the present invention is not limited to the device of above model.User can select other products with similar functions to replace.
Claims (10)
1. the electric power monitoring system based on GIS, it is characterized in that, comprise one-level monitoring unit, secondary monitoring unit, storage unit, processing unit, geo-location unit and alarm unit, processing unit comprises the temperature detecting unit detecting ambient temperature, the information collected is sent to processing unit by one-level monitoring unit, described alarm unit sends alerting signal according to the output information of processing unit, and described control module controls one-level monitoring unit and secondary monitoring unit switches between normally open and normally off.
2. the electric power monitoring system based on GIS according to claim 1, is characterized in that, described one-level monitoring unit is video acquisition unit.
3. the electric power monitoring system based on GIS according to claim 2, is characterized in that, described video acquisition unit is infrared imaging collecting unit.
4. the electric power monitoring system based on GIS according to Claims 2 or 3, is characterized in that, described secondary monitoring unit comprises fire alarm monitoring unit, electromagnetic anomaly monitoring unit and vibration monitoring unit.
5. the electric power monitoring system based on GIS according to claim 4, is characterized in that, described fire alarm monitoring unit comprises: signal transacting A/D module, CPU module, power module, communication unit and built-in multiple sensors; Described sensor gathers electric power place fire characteristic signal; The CPU module of described fire alarm monitoring unit is responsible for receiving the signal collected with processes sensor, described signal transacting A/D module be used for by in-situ measurement to the analog quantity of dissimilar fire characteristic signal convert the digital signal being convenient to CPU module process to.
6. the electric power monitoring system based on GIS according to Claims 2 or 3, is characterized in that, described processing unit comprises: load module, output module, display module, CPU module and power module; The multi-Dimensional parameters that the CPU module of described monitoring main control computer transmits according to the CPU module of fire alarm monitoring unit, make the judgement with or without fire and fire risk, and in conjunction with the manual setting of load module, the information of display and movement content are passed to display module and output module respectively.
7. the electric power monitoring system based on GIS according to claim 5, it is characterized in that, described sensor be selected from following sensor two or more, to form the multiple synchronizing detection comprising multi-Dimensional parameters and implement multiple parameters, for gathering the sensor of the characteristic parameter of electric power place fire characteristic signal, described characteristic parameter comprises temperature, humidity, and smog, SO
2, HCl, NOx, CO, CO
2presence or absence or concentration, also comprise the video sensor for carrying out video monitoring to the on-the-spot visible ray in electric power place.
8. according to the electric power monitoring system based on GIS one of claim 1-3 Suo Shu, it is characterized in that, described load module is used for manually inputting parameters, alarming threshold value is set, described display module whether shows and display information, described output module work whether and output content.
9. according to the electric power monitoring system based on GIS one of claim 1-3 Suo Shu, it is characterized in that, described display module shows electric power place fire characteristic signal, characteristic ginseng value and alarming threshold value, occurs fire hazard or condition of a fire time.
10. according to the electric power monitoring system based on GIS one of claim 1-3 Suo Shu, it is characterized in that, described output module carries out sound and light alarm and fire-fighting link action, when the fire signal detected exceedes the alarming threshold value of setting, output alarm signal, controls fire-fighting link device and starts fire-fighting link work at any time when needed.
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| CN108446349A (en) * | 2018-03-08 | 2018-08-24 | 国网四川省电力公司电力科学研究院 | A kind of detection method of GIS abnormal datas |
| CN109660770A (en) * | 2019-01-12 | 2019-04-19 | 田华 | Intelligent scene monitors system and method |
| CN117010532A (en) * | 2023-10-07 | 2023-11-07 | 电子科技大学 | Comprehensive pipe gallery fire trend prediction method based on multi-mode deep learning |
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| CN103488154A (en) * | 2013-10-09 | 2014-01-01 | 国家电网公司 | Remote comprehensive monitoring system for transformer substation operating environment and linkage control method thereof |
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| CN108446349A (en) * | 2018-03-08 | 2018-08-24 | 国网四川省电力公司电力科学研究院 | A kind of detection method of GIS abnormal datas |
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