CN203490000U - Temperature monitoring inspection tour system for substation primary equipment - Google Patents
Temperature monitoring inspection tour system for substation primary equipment Download PDFInfo
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- CN203490000U CN203490000U CN201320615245.6U CN201320615245U CN203490000U CN 203490000 U CN203490000 U CN 203490000U CN 201320615245 U CN201320615245 U CN 201320615245U CN 203490000 U CN203490000 U CN 203490000U
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Abstract
The utility model provides a temperature monitoring inspection tour system for substation primary equipment. The temperature monitoring inspection tour system comprises passive temperature measuring sensors, a hand-held inspection tour terminal and a background analysis early warning system, wherein each passive temperature measuring sensor is disposed at each key point, which is required for temperature monitoring, of the substation primary equipment; the hand-held inspection tour terminal is carried by an inspection tour worker; the passive temperature measuring sensors are in radio connection with the hand-held inspection tour terminal; the hand-held inspection tour terminal is in communication connection with the background analysis early warning system; and each passive temperature measuring sensor comprises a radio frequency receiving circuit, a temperature sensing circuit, a digital logic circuit and a memory, and the hand-held inspection tour terminal comprises a microprocessor, an interface module, a memory module, a radio frequency oscillator, a radio frequency launcher, a radio frequency receiver, an amplifier, a parabolic lens, an antenna and a power module. The temperature monitoring inspection tour system is relatively low in cost, convenient to use, and strong in anti-interference capability and applicability, and inspection tour efficiency for electric equipment is improved, thereby obtaining good social and economic benefits.
Description
Technical field
The utility model relates to transforming plant primary equipment monitoring technical field, is specifically related to a kind of transforming plant primary equipment temperature monitoring cruising inspection system.
Background technology
Transforming plant primary side apparatus is in operation and causes that because of various reasons thereby heating causes the phenomenon of transformer station's electric power system fault very common.Thereby, the temperature of transforming plant primary side apparatus is monitored and patrolled and examined timely, be directly connected to the normal operation of power transmission and transformation system.The temperature monitoring method of transforming plant primary side apparatus mainly contains the warm wax disk(-sc) method of examination at present, temperature indicating records labeling acts, infrared measurement of temperature method or far infrared camera shot machine thermometric, optical fiber temperature-measurement method etc.Trying warm wax disk(-sc) method is mainly that the key position easily generating heat at equipment is placed the warm sheet of examination, temperature when point being monitored surpasses after the melting point of the warm sheet of examination, trying warm sheet thawing drips, adopt the examination temperature wax disk(-sc) that operator on duty makes the circuit of all at regular intervals in this way, find to melt in time and process, thereby operator on duty's labour intensity is larger, if do not find in time the thawing of being heated of the warm sheet of examination because of carelessness, will leave accident potential; Temperature indicating records labeling acts and adopts responsive to temperature thermochromic technology, is characterized in that volume is little, cheap, but weak point is to need artificial regularly inspection, automatically record; Infrared measurement of temperature method is used infrared thermography equipment to make scanography to all devices in transformer station, but infrared equipment is affected by sunray easily, causes thermometric error, and therefore test can only be carried out at night, and with high costs, and limitation is aobvious, and you easily see; Optical fiber temperature-measurement method is by adopting distributed fiberoptic sensor to carry out thermometric to electrical equipment heating positions such as transformer, cable and power distribution cabinets, the temperature signal of measurement is delivered to signal receiver by optical fiber transmission, adopt powered battery, its weak point is: the restriction of battery altering trouble, optical fiber vulnerable to pollution impact insulation and fibre-optical bending degree.
Utility model content
The purpose of this utility model is: overcome the deficiencies in the prior art, provide a kind of simple in structure, cost is lower, time saving and energy saving transforming plant primary equipment temperature monitoring cruising inspection system is patrolled and examined in easy to install, monitoring.
The technical solution of the utility model is: transforming plant primary equipment temperature monitoring cruising inspection system of the present utility model, comprise backstage analyzing and alarming system, and it is characterized in that: also comprise passive temperature survey sensor and the hand-held terminal of patrolling and examining;
Above-mentioned passive temperature survey sensor at least arranges more than 1, and the number of passive temperature survey sensor need to be carried out the number of the key point of temperature monitoring and be determined according to transforming plant primary equipment; Each key point that passive temperature survey sensor need to carry out temperature monitoring at transforming plant primary equipment respectively arranges respectively 1; The hand-held terminal of patrolling and examining is carried by patrolling and examining staff; Passive temperature survey sensor is electrically connected to the hand-held terminal wireless of patrolling and examining; Hand-heldly patrol and examine the communication connection of terminal and backstage analyzing and alarming system;
Above-mentioned passive temperature survey sensor comprises radio-frequency (RF) receiving circuit, temperature sensing circuit, DLC (digital logic circuit) and storer; Radio-frequency (RF) receiving circuit comprises coupling element, rectification circuit, mu balanced circuit and modulation-demodulation circuit; Coupling element is electrically connected to modulation-demodulation circuit two-way signaling; Rectification circuit is electrically connected to coupling element; Mu balanced circuit is electrically connected to rectification circuit; Temperature sensing circuit comprises electric capacity temperature measurement circuit and analog to digital converter; Analog to digital converter is electrically connected to electric capacity temperature measurement circuit signal; DLC (digital logic circuit) comprises logic controller and codec; Codec andlogic control device two-way signaling is electrically connected to; The codec of DLC (digital logic circuit) is electrically connected to the modulation-demodulation circuit two-way signaling of radio-frequency (RF) receiving circuit; Storer is electrically connected to the analog to digital converter signal of temperature sensing circuit; Storer is electrically connected to the logic controller two-way signaling of DLC (digital logic circuit);
The radio-frequency (RF) receiving circuit of above-mentioned passive temperature survey sensor is a kind of only response pumping signal identical or approaching with coupling element natural frequency, utilize the circuit of temperature of the frequency selectivity perception equipment under test of surface acoustic wave coupling element; Electric capacity temperature measurement circuit is a kind of circuit of correspondence, the output signal corresponding with temperature of capacitance-temperature characteristic being measured, the relation of electric capacity and temperature carried out again according to capacitance bridge principle;
The above-mentioned hand-held terminal of patrolling and examining comprises microprocessor, interface module, memory module, radio-frequency oscillator, radiofrequency launcher, radio frequency receiver, amplifier, parabolic lens, antenna and power module; Microprocessor is electrically connected to interface module and memory module difference two-way signaling; Microprocessor is electrically connected to amplifier signal; Radio-frequency oscillator is electrically connected to microprocessor signals; Radiofrequency launcher is electrically connected to radio-frequency oscillator and aerial signal respectively; Radio frequency receiver is electrically connected to radio-frequency oscillator and aerial signal respectively; Amplifier is electrically connected to radio frequency receiver signal; Parabolic lens is for being processed into parallel radiofrequency signal bundle by the radiofrequency signal of antenna transmission; Power module provides working power for the hand-held terminal of patrolling and examining.
Further scheme is: in the storer of above-mentioned passive temperature survey sensor, canned data adopts ID coding structure, comprises device id, sensor ID and the metrical information of measured transforming plant primary equipment.
The utlity model has positive effect: (1) transforming plant primary equipment temperature monitoring of the present utility model cruising inspection system, simple in structure, cost is lower, easy to use.(2) transforming plant primary equipment temperature monitoring cruising inspection system of the present utility model, its passive temperature survey sensor, without power supply, is removed the inconvenience that the power supply secondaries such as battery are changed from, can realize the permanently effective monitoring to transforming plant primary equipment temperature; Adopt electric capacity thermometric, electric capacity has characteristic not affected by magnetic fields, can adapt to high-intensity magnetic field interference environment condition; While electric capacity is highly sensitive to temperature, and physical dimension is little and can make as required various shapes, thereby can effectively adapt to the complex environment of transforming plant primary equipment temperature detection, and applicability is strong.(3) transforming plant primary equipment temperature monitoring cruising inspection system of the present utility model, its hand-held terminal of patrolling and examining is by arranging parabolic lens, the radiofrequency signal of its transmitting is propagated with the form of narrow beam along specific direction, thereby can effectively reduce hand-held emissive power of patrolling and examining terminal, the distance, the reduction use cost that increase substantially signal transmission, improve the signal antijamming capability under strong magnetic field circumstance.(4) transforming plant primary equipment temperature monitoring cruising inspection system of the present utility model, its backstage analyzing and alarming system by receive hand-held information of patrolling and examining terminal transmission easily automatic accurate judging there is abnormal device type and position, and hand-held the patrolling and examining in terminal of when automatically preserving, related information transmission being carried to on-the-spot patrol officer, thereby greatly shortened fault verification and repairing time, effective guarantee electric power is supplied with.(5) transforming plant primary equipment temperature monitoring cruising inspection system of the present utility model, can improve greatly transforming plant primary equipment monitoring management level, save a large amount of human and material resources, increase work efficiency, reduce and patrol and examine emergency repair cost, there is good society and economic benefit.
Accompanying drawing explanation
Fig. 1 is formation schematic diagram of the present utility model;
Fig. 2 is the formation schematic diagram of the passive temperature survey sensor in Fig. 1;
Fig. 3 is the information coding structural representation in the storer in Fig. 2;
Fig. 4 is the hand-held formation schematic diagram of patrolling and examining terminal in Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
(embodiment 1)
See Fig. 1, the transforming plant primary equipment temperature monitoring cruising inspection system of the present embodiment, mainly by passive temperature survey sensor, hand-heldly patrol and examine terminal and backstage analyzing and alarming system forms.
Passive temperature survey sensor at least arranges more than 1, and the number of passive temperature survey sensor need to be carried out the number of the key point of temperature monitoring and be determined according to transforming plant primary equipment.Each key point that transforming plant primary equipment need to carry out temperature monitoring respectively arranges respectively 1 passive temperature survey sensor.
The hand-held terminal of patrolling and examining is carried by electric inspection process staff; Backstage analyzing and alarming system is arranged on the Surveillance center of power supply department.
Passive temperature survey sensor is electrically connected to the hand-held terminal wireless of patrolling and examining; The hand-held terminal of patrolling and examining communicates to connect by communication network in transformer station and backstage analyzing and alarming system.
See Fig. 2 and Fig. 3, passive temperature survey sensor is mainly comprised of radio-frequency (RF) receiving circuit, temperature sensing circuit, DLC (digital logic circuit) and storer.
Radio-frequency (RF) receiving circuit is mainly comprised of coupling element, rectification circuit, mu balanced circuit and modulation-demodulation circuit.Coupling element is on the one hand for obtaining magnetic energy with electromagnetic field couples, on the other hand for receiving and send the radio frequency electromagnetic signal of corresponding frequencies.Rectification circuit is for converting the alternation magnetic energy of coupling element transmission to DC voltage.Mu balanced circuit is used for the working power of output transducer after the voltage voltage stabilizing of rectification circuit output.Modulation-demodulation circuit carries out demodulation and be transferred to coupling element after the temperature signal of measurement is modulated for the radiofrequency signal that coupling element is received.Coupling element is electrically connected to modulation-demodulation circuit two-way signaling; Rectification circuit is electrically connected to coupling element; Mu balanced circuit is electrically connected to rectification circuit.Radio-frequency (RF) receiving circuit only responds the pumping signal identical or approaching with coupling element natural frequency, utilizes the temperature of the frequency selectivity perception equipment under test of surface acoustic wave coupling element.
Temperature sensing circuit, mainly comprises electric capacity temperature measurement circuit and analog to digital converter.Electric capacity temperature measurement circuit, according to capacitance bridge principle, is measured capacitance-temperature characteristic, then the relation of electric capacity and temperature is carried out to correspondence, exports the signal corresponding with temperature.The electric capacity of electric capacity temperature measurement circuit has temperature control high, and its electric capacity C raises and to have significant change with temperature, good stability, the advantage such as physical dimension is little and be not subject to that strong magnetic field circumstance affects.Analog to digital converter, for carrying out the conversion of mould/number signal by the signal of electric capacity temperature measurement circuit transmission.Analog to digital converter is electrically connected to electric capacity temperature measurement circuit signal.
DLC (digital logic circuit) is mainly comprised of logic controller and codec.Logic controller reads control for command assignment, execution and storer.Codec is used for the encoding and decoding of signal, the command information of decoding and being transmitted by modulation-demodulation circuit, and will after the temperature information coding of measurement, be transferred to the modulation that modulation-demodulation circuit carries out signal.Codec andlogic control device two-way signaling is electrically connected to.
Storer, for stored tag information and metrical information, for reading and subsequent treatment.Storer adopts ID coding structure, comprises device id, sensor ID and the metrical information of measured transforming plant primary equipment.Each passive temperature survey sensor has and has respectively unique No. ID.
The codec of DLC (digital logic circuit) is electrically connected to the modulation-demodulation circuit two-way signaling of radio-frequency (RF) receiving circuit; Storer is electrically connected to the analog to digital converter signal of temperature sensing circuit; Storer is electrically connected to the logic controller two-way signaling of DLC (digital logic circuit).
See Fig. 4, the hand-held terminal of patrolling and examining is mainly comprised of microprocessor, interface module, memory module, radio-frequency oscillator, radiofrequency launcher, radio frequency receiver, amplifier, parabolic lens, antenna and power module.
Microprocessor is electrically connected to interface module and memory module difference two-way signaling; Microprocessor is electrically connected to amplifier signal; Radio-frequency oscillator is electrically connected to microprocessor signals; Radiofrequency launcher is electrically connected to radio-frequency oscillator and aerial signal respectively; Radio frequency receiver is electrically connected to radio-frequency oscillator and aerial signal respectively; Amplifier is electrically connected to radio frequency receiver signal; Parabolic lens is for being processed into parallel radiofrequency signal bundle by the radiofrequency signal of antenna transmission; Power module provides working power for the hand-held terminal of patrolling and examining.
Hand-held microprocessor of patrolling and examining terminal is mainly used in controlling and the communicating by letter and information processing of temperature sensor; Microprocessor utilizes communication network and backstage analyzing and alarming system in transformer station to realize exchanges data by interface module.Memory module is for the storage of information.Radio-frequency oscillator, radiofrequency launcher and radio frequency receiver form radio-frequency module jointly, for generation of high-frequency carrier signal, for the work of sensor for measuring temperature internal circuit provides energy; The signal that the needs of microprocessor transmission are sent is modulated backward passive temperature survey sensor and is transmitted; Receive also demodulation from the signal of passive temperature survey sensor, this signal is transferred to microprocessor after amplifier amplifies.Antenna is for being converted to current signal by the electromagnetic wave receiving, or the current signal of needs transmitting is converted to electromagnetic wave launches.Parabolic lens is for being processed into parallel radiofrequency signal bundle by the radiofrequency signal of antenna transmission, its objective is the radiofrequency signal of transmitting is propagated with the form of narrow beam along a certain specific direction, thereby can reduce hand-held emissive power of patrolling and examining terminal, the distance, the reduction use cost that increase substantially signal transmission, improve the signal antijamming capability under strong magnetic field circumstance.
Backstage analyzing and alarming system is mainly comprised of communication terminal, database server and workstation.Backstage analyzing and alarming system is used for receiving and store the information of patrolling and examining terminal transmission by hand-held, and information is read, identifies and processed.Whether the transforming plant primary equipment that backstage analyzing and alarming system is patrolled and examined by the information judgement receiving is in normal operating conditions.When finding that temperature signal that a certain passive temperature survey sensor sends is abnormal, according to automatic accurate the demonstrating of id information, there is abnormal device location and abnormal device type occur in backstage analyzing and alarming system, when automatically depositing relevant information in database server, be transferred to hand-held the patrolling and examining in terminal that on-the-spot patrol officer carries, staff is patrolled and examined at scene can understand current equipment state of patrolling and examining in real time by information.In addition, the managerial personnel of power supply department Surveillance center can understand the position at patrol officer place by backstage analyzing and alarming system, ensure and patrol and examine being in time of staff; The forecast analysis that backstage analyzing and alarming system can be added up, gather and carry out equipment state patrolling and examining data easily, the automaticity of raising system, the loaded down with trivial details hand-kept work while effectively alleviating artificial thermometric, guarantees power equipment safety operation.
The transforming plant primary equipment temperature monitoring cruising inspection system of the present embodiment, its principle of work and the course of work are summarized as follows: when patrol officer patrols and examines transforming plant primary equipment, the hand-held terminal transmitting radio frequency signal of patrolling and examining, by electromagnetic field, activate the passive temperature survey sensor that is attached to transforming plant primary equipment key point, passive temperature survey sensor is started working, measure the temperature of this transforming plant primary equipment key point, and the temperature information of measurement and device id and sensor ID information are wirelessly sent to the hand-held terminal of patrolling and examining in the lump, the hand-held terminal of patrolling and examining is processed related information transmission by communication network in transformer station to backstage analyzing and alarming system, patrolling and examining staff also can be patrolled and examined relevant information or the order that backstage analyzing and alarming system that terminal receives sends and carried out the work such as corresponding fault handling by hand-held.
To sum up, the transforming plant primary equipment temperature monitoring cruising inspection system of the present embodiment, simple in structure, cost is lower, easy to use; Its passive temperature survey sensor, without power supply, is removed the inconvenience that the power supply secondaries such as battery are changed from, can realize the permanently effective monitoring to transforming plant primary equipment temperature; Adopt electric capacity thermometric, electric capacity has characteristic not affected by magnetic fields, can adapt to high-intensity magnetic field interference environment condition; While electric capacity is highly sensitive to temperature, and physical dimension is little and can make as required various shapes, thereby can effectively adapt to the complex environment of transforming plant primary equipment temperature detection, and applicability is strong; The hand-held terminal of patrolling and examining is by arranging parabolic lens, the radiofrequency signal of its transmitting is propagated with the form of narrow beam along specific direction, thereby can effectively reduce hand-held emissive power of patrolling and examining terminal, the distance, the reduction use cost that increase substantially signal transmission, improve the signal antijamming capability under strong magnetic field circumstance; Backstage analyzing and alarming system by receive hand-held information of patrolling and examining terminal transmission easily automatic accurate judging there is abnormal device type and position, and hand-held the patrolling and examining in terminal of when automatically preserving, related information transmission being carried to on-the-spot patrol officer, thereby greatly shortened fault verification and repairing time, effective guarantee electric power is supplied with; Can improve greatly transforming plant primary equipment monitoring management level, save a large amount of human and material resources, increase work efficiency, reduce and patrol and examine emergency repair cost, there is good society and economic benefit.
Above embodiment is the explanation to embodiment of the present utility model; but not to restriction of the present utility model; person skilled in the relevant technique is not in the situation that departing from spirit and scope of the present utility model; can also make various conversion and variation and obtain the corresponding technical scheme being equal to, therefore all technical schemes that are equal to all should be included into scope of patent protection of the present utility model.
Claims (2)
1. a transforming plant primary equipment temperature monitoring cruising inspection system, comprises backstage analyzing and alarming system, it is characterized in that: also comprise passive temperature survey sensor and the hand-held terminal of patrolling and examining;
Described passive temperature survey sensor at least arranges more than 1, and the number of passive temperature survey sensor need to be carried out the number of the key point of temperature monitoring and be determined according to transforming plant primary equipment; Each key point that passive temperature survey sensor need to carry out temperature monitoring at transforming plant primary equipment respectively arranges respectively 1; The hand-held terminal of patrolling and examining is carried by patrolling and examining staff; Passive temperature survey sensor is electrically connected to the hand-held terminal wireless of patrolling and examining; Hand-heldly patrol and examine the communication connection of terminal and backstage analyzing and alarming system;
Described passive temperature survey sensor comprises radio-frequency (RF) receiving circuit, temperature sensing circuit, DLC (digital logic circuit) and storer; Radio-frequency (RF) receiving circuit comprises coupling element, rectification circuit, mu balanced circuit and modulation-demodulation circuit; Coupling element is electrically connected to modulation-demodulation circuit two-way signaling; Rectification circuit is electrically connected to coupling element; Mu balanced circuit is electrically connected to rectification circuit; Temperature sensing circuit comprises electric capacity temperature measurement circuit and analog to digital converter; Analog to digital converter is electrically connected to electric capacity temperature measurement circuit signal; DLC (digital logic circuit) comprises logic controller and codec; Codec andlogic control device two-way signaling is electrically connected to; The codec of DLC (digital logic circuit) is electrically connected to the modulation-demodulation circuit two-way signaling of radio-frequency (RF) receiving circuit; Storer is electrically connected to the analog to digital converter signal of temperature sensing circuit; Storer is electrically connected to the logic controller two-way signaling of DLC (digital logic circuit);
The radio-frequency (RF) receiving circuit of described passive temperature survey sensor is a kind of only response pumping signal identical or approaching with coupling element natural frequency, utilize the circuit of temperature of the frequency selectivity perception equipment under test of surface acoustic wave coupling element; Electric capacity temperature measurement circuit is a kind of circuit of correspondence, the output signal corresponding with temperature of capacitance-temperature characteristic being measured, the relation of electric capacity and temperature carried out again according to capacitance bridge principle;
The described hand-held terminal of patrolling and examining comprises microprocessor, interface module, memory module, radio-frequency oscillator, radiofrequency launcher, radio frequency receiver, amplifier, parabolic lens, antenna and power module; Microprocessor is electrically connected to interface module and memory module difference two-way signaling; Microprocessor is electrically connected to amplifier signal; Radio-frequency oscillator is electrically connected to microprocessor signals; Radiofrequency launcher is electrically connected to radio-frequency oscillator and aerial signal respectively; Radio frequency receiver is electrically connected to radio-frequency oscillator and aerial signal respectively; Amplifier is electrically connected to radio frequency receiver signal; Parabolic lens is for being processed into parallel radiofrequency signal bundle by the radiofrequency signal of antenna transmission; Power module provides working power for the hand-held terminal of patrolling and examining.
2. transforming plant primary equipment temperature monitoring cruising inspection system according to claim 1, it is characterized in that: in the storer of described passive temperature survey sensor, canned data adopts ID coding structure, the device id that comprises measured transforming plant primary equipment, sensor ID and metrical information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615245.6U CN203490000U (en) | 2013-09-30 | 2013-09-30 | Temperature monitoring inspection tour system for substation primary equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615245.6U CN203490000U (en) | 2013-09-30 | 2013-09-30 | Temperature monitoring inspection tour system for substation primary equipment |
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| CN203490000U true CN203490000U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320615245.6U Expired - Lifetime CN203490000U (en) | 2013-09-30 | 2013-09-30 | Temperature monitoring inspection tour system for substation primary equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515616A (en) * | 2013-09-30 | 2015-04-15 | 江苏省电力公司常州供电公司 | Temperature monitoring and inspecting system of substation primary equipment |
| CN105698960A (en) * | 2016-03-19 | 2016-06-22 | 金陵科技学院 | Temperature measuring device for maintenance routing inspection of industrial safety facilities and routing inspection method thereof |
-
2013
- 2013-09-30 CN CN201320615245.6U patent/CN203490000U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515616A (en) * | 2013-09-30 | 2015-04-15 | 江苏省电力公司常州供电公司 | Temperature monitoring and inspecting system of substation primary equipment |
| CN104515616B (en) * | 2013-09-30 | 2017-10-17 | 江苏省电力公司常州供电公司 | Transforming plant primary equipment temperature monitoring cruising inspection system |
| CN105698960A (en) * | 2016-03-19 | 2016-06-22 | 金陵科技学院 | Temperature measuring device for maintenance routing inspection of industrial safety facilities and routing inspection method thereof |
| CN105698960B (en) * | 2016-03-19 | 2018-03-30 | 金陵科技学院 | A kind of industry security facility maintenance inspection temperature measuring equipment and method for inspecting |
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