CN202710690U - Lightning arrester leakage current online monitoring system based on wireless sensor network - Google Patents
Lightning arrester leakage current online monitoring system based on wireless sensor network Download PDFInfo
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Abstract
A lightning arrester leakage current online monitoring system based on a wireless sensor network is disclosed. The system comprises a host, several wireless sensor network base stations (nodes), several wireless leakage current monitoring sensors and several wireless voltage monitoring sensors. The host, the wireless leakage current monitoring sensors and the wireless voltage monitoring sensors are interconnected and cooperatively complete total current detection of the lightning arrester leakage current, motion frequency detection, harmonic wave current calculation, resistive current calculation and issuing of alarm information through a wireless network. The wireless voltage monitoring sensors measure time base information and a voltage harmonic wave parameter of a power grid. The wireless leakage current monitoring sensors measure a leakage current parameter of the lightning arrester and an environment temperature and a humidity of the lightning arrester. The wireless sensor network base stations are taken as backbone nodes of the network and are used to connect the wireless voltage monitoring sensors with the wireless leakage current monitoring sensors and connect the wireless voltage monitoring sensors and the wireless leakage current monitoring sensors with the host. The system possesses the characteristics of low cost, low power, high security, high reliability, real-time online and a good environmental adaptability.
Description
Technical field
The utility model relates to a kind of leakage current of an arrester on-line monitoring system based on wireless sensor network, belong to electronic information technical field.
Background technology
The power high voltage lightning arrester is the visual plant that ensures electric power netting safe running, and it is mainly used in the earth that is transmitted to thunder-strike current and the surge current safety that transfinites, and restriction high-tension line superpotential protects other equipment for power transmission and distribution to exempt from the infringement of thunderbolt and surge.Transformer station is equipped with the various lightning arresters of One's name is legion usually; owing to will bear huge instantaneous power during lightning arrester work; its characteristic usually can be deteriorated; leakage current can progressively increase; will cause surge arrester failure when this after being deteriorated to a certain degree; the reasons such as manufacturing defect, lightning arrester plug make moist also can cause the fault of leakage current increase even Explosion of on Arrester, and weather, humid environment also can cause leakage current to increase in addition.Leakage current is comprised of resistive component and capacitive component, the current in resistance property value size of general lightning arrester plug has characterized the quality state of lightning arrester, the size of measuring lightning arrester plug current in resistance property can be judged the quality state of lightning arrester, so for fear of the lightning arrester damage accident, usually want the leakage current of periodic monitoring lightning arrester.
Existing method is that artificial regularly the sight looked into the total leakage current of record, by recording the size of total leakage current, the factors such as weather condition are manually adjudicated the quality state of lightning arrester, this needs a large amount of artificial, and the accuracy of interpretation depends on operator's technical merit and sense of responsibility, risk of policy making with human factor, if adopt common industrial measurement and control network to carry out on-line monitoring, can reduce artificial input, but the thunderbolt energy might be imported to the Substation control chamber by measurement and control network, face huge security risk, so the general industry measurement and control network is applied in transformer substation arrester On-line Monitoring of Leakage Current aspect huge security risk being arranged, is unfavorable.
Summary of the invention
The purpose of this utility model is the problem for above-mentioned existence, proposes a kind of low cost, low-power consumption, high security, highly reliable, the leakage current of an arrester on-line monitoring system based on wireless sense network of good environmental adaptability.
The purpose of this utility model is finished by following technical solution, this system is by main frame, some wireless sensor networks base station (node), some wireless leakage current monitoring sensors, some wireless voltage monitoring sensors form, described main frame, wireless leakage current monitoring sensor, each unit of wireless voltage monitoring sensor detects by the collaborative total current of finishing leakage current of an arrester of interconnected with wireless network, action frequency detects, harmonic current calculates, current in resistance property calculates and the issue of warning information, and wherein said wireless voltage monitoring sensor is measured time basic information and the voltage harmonic parameter of electrical network; Described wireless leakage current monitoring sensor is measured the leakage current parameter of lightning arrester and environment temperature, the humidity of lightning arrester; Described wireless sensor network base station (node) is as the backbone node of network, with between each wireless voltage monitoring sensor, the wireless leakage current monitoring sensor, connect between wireless voltage monitoring sensor, wireless leakage current monitoring sensor and the main frame; The mains by harmonics information of leakage current monitoring sensor leakage current of an arrester information that described host process is wireless, ambient temperature and humidity information and fusing wireless voltage monitoring sensor forms the surge arrester failure information criterion, according to determining that in advance expert's Mishap Database and fault verification algorithm produce warning information and superior people, machine is issued these information.
Described wireless sensor network base station (node) is comprised of base station control circuit, four road radio frequency links, copper cable communication interface and power supply, and wherein said base station control circuit is by MCU, storer and crystal composition; Described four road radio frequency links are comprised of apart from radio frequency link two-way short-range radio frequency link and two-way length; Described copper cable communication interface is used for being connected with the communication of outside, and the RS-485 COM port of copper cable communication is used for radio network information is transferred to main frame; The base station control circuit is read and write each radio-frequency receiving-transmitting integrated circuit by spi bus, protocol analysis, routing algorithm, the routing table of finishing the overall network communication make up and management, and to the sensor under this backbone node network, off-line manages, and distributes address, frequency and communication time slot.
Described wireless leakage current sensor is comprised of control circuit, leakage current sensor, leakage current conditioning sampling unit, environment temperature, humidity sensor, environmental energy acquiring unit, energy-storage units, power supply unit, digital radio communication system module, LCD display unit and reserve battery; Described wireless voltage monitoring sensor is comprised of control circuit, voltage sampling conditioning unit, power supply unit, digital radio communication system module and reserve battery; Control circuit and the control circuit in the wireless voltage monitoring sensor in the wherein said wireless leakage current monitoring sensor are respectively by microcontroller (MCU), storer and crystal composition.
Leakage current sensor in the described wireless leakage current monitoring sensor is a kind of little current transformer or direct resistance sampling low current sensor of finishing the leakage current sampling and the safety relief path being provided for the high strength thunder-strike current; Described leakage current conditioning sampling unit by a kind of protect whole wireless leakage current monitoring sensor not by broken by lightning, conditioning leakage current to the voltage that is fit to A/D, finish holding circuit, operational amplifier and the A/D change-over circuit composition of A/D translation function; Described environment temperature, humidity sensor are comprised of integrated digital formula Temperature Humidity Sensor and interface circuit, by spi bus and MCU swap data; Described environmental energy acquiring unit is stolen circuit and holding circuit or solar cell by the leakage current that obtains the required energy of wireless leakage current monitoring sensor normal operation from working environment and is formed; Described digital radio communication system module is comprised of two-way short-range radio frequency transceiver IC, crystal oscillator and antenna, and CPU is by spi bus read-write 2.4GHZ radio-frequency receiving-transmitting integrated circuit.
Voltage sampling conditioning unit in the described wireless voltage monitoring sensor is comprised of the voltage-phase information that gathers each phase place and standard potential transformer and the A/D change-over circuit of voltage magnitude information; Described power supply unit is a multichannel low-power consumption DC/DC change-over circuit; Described digital radio communication system module is comprised of two-way short-range radio frequency transceiver IC, crystal oscillator and antenna, and CPU is by spi bus read-write 2.4GHZ radio-frequency receiving-transmitting integrated circuit.
The wireless sense network platform that wireless lightning arrester on-Line Monitor Device of the present utility model is an opening can have the wireless senser of other types to merge.
Wireless leakage current sensor is in dormant state usually, pass through during this period solar powered unit Accumulation current to ultracapacitor, until with overlying roaduay by the startup time slot of nodes coordinating after MCU automatically start, and open leakage current and nurse one's health sampling unit, the sampled leakage current signal, by the harmonic component of FFT calculating leakage current, and by working in coordination with the calculating resistive current component with wireless voltage monitoring sensor, these current data are presented on the LCD.
All the time in the monitoring mains voltage signal, the zero crossing of each voltage signal will be indicated and be broadcasted constantly wireless voltage monitoring sensor, and the content of broadcasting is wireless voltage monitoring sensor time and the wireless voltage monitoring sensor+T0 of the last zero crossing moment T.Then the delay Tdel i that routing node is received the rear calculating book node of time broadcasting of wireless voltage monitoring sensor transmits the wireless voltage monitoring sensor+T0 of T+Tdel i to next node.Deduct the machine processing time and routing delay time after the wireless leakage current monitoring sensor time of receipt (T of R) broadcasting, calculate the relative time error of T0 and local zone time, demarcate zero point constantly, thereby calculate current in resistance property.
The wakeup time of wireless leakage current monitoring sensor is to coordinate definite time slot with its upper strata routing node (node or wireless leakage current monitoring sensor), finish measurement at this time slot, and sending to the node of determining according to routing table, node will be pooled to each sensor information through merging, filter, being transferred to main frame after comprehensive again.
Host stores, analyze these data, mate identification by the expert database with prior setting, thereby judge the quality state of each tested lightning arrester, when the lightning arrester generation performance is deteriorated to hazard level, in time automatically give the alarm, stop the generation of Explosion of on Arrester accident.
The utility model compared with prior art has low cost, low-power consumption, high security, highly reliable, the characteristics such as good environmental adaptability.
Description of drawings
Fig. 1 is the leakage current of an arrester on-line monitoring system square principle figure of wireless sense network of the present utility model.
Fig. 2 is wireless sensor network exemplary topology diagram of the present utility model.
Fig. 3 is the fundamental diagram of wireless sensor network of the present utility model base station (node).
Fig. 4 is the square principle figure of wireless leakage current sensor of the present utility model.
Fig. 5 is the fundamental diagram of wireless voltage monitoring sensor of the present utility model.
Embodiment
The utility model mainly is comprised of main frame, some wireless sensor networks base station (node), some wireless leakage current monitoring sensors, some wireless voltage monitoring sensors, described main frame, wireless leakage current monitoring sensor, each unit of wireless voltage monitoring sensor by the collaborative total current of finishing leakage current of an arrester of interconnected with wireless network detect, action frequency detects, harmonic current calculates, current in resistance property calculates and the issue of warning information, wherein said wireless voltage monitoring sensor is measured time base information and the voltage harmonic parameter of electrical network; Described wireless leakage current monitoring sensor is measured the leakage current parameter of lightning arrester and environment temperature, the humidity of lightning arrester; Described wireless sensor network base station (node) is as the backbone node of network, with between each wireless voltage monitoring sensor, the wireless leakage current monitoring sensor, connect between wireless voltage monitoring sensor, wireless leakage current monitoring sensor and the main frame; The mains by harmonics information of leakage current monitoring sensor leakage current of an arrester information that described host process is wireless, ambient temperature and humidity information and fusing wireless voltage monitoring sensor forms the surge arrester failure information criterion, according to determining that in advance expert's Mishap Database and fault verification algorithm produce warning information and superior people, machine is issued these information.
Described wireless sensor network base station (node) is comprised of base station control circuit, four road radio frequency links, copper cable communication interface and power supply, and wherein said base station control circuit is by MCU, storer and crystal composition; Described four road radio frequency links are comprised of apart from radio frequency link two-way short-range radio frequency link and two-way length; Described copper cable communication interface is used for being connected with the communication of outside, and the RS-485 COM port of copper cable communication is used for radio network information is transferred to main frame; The base station control circuit is read and write each radio-frequency receiving-transmitting integrated circuit by spi bus, protocol analysis, routing algorithm, the routing table of finishing the overall network communication make up and management, and to the sensor under this backbone node network, off-line manages, and distributes address, frequency and communication time slot.
Described wireless leakage current sensor is comprised of control circuit, leakage current sensor, leakage current conditioning sampling unit, environment temperature, humidity sensor, environmental energy acquiring unit, energy-storage units, power supply unit, digital radio communication system module, LCD display unit and reserve battery; Described wireless voltage monitoring sensor is comprised of control circuit, voltage sampling conditioning unit, power supply unit, digital radio communication system module and reserve battery; Control circuit and the control circuit in the wireless voltage monitoring sensor in the wherein said wireless leakage current monitoring sensor are respectively by microcontroller (MCU), storer and crystal composition.
Leakage current sensor in the described wireless leakage current monitoring sensor is a kind of little current transformer or direct resistance sampling low current sensor of finishing the leakage current sampling and the safety relief path being provided for the high strength thunder-strike current; Described leakage current conditioning sampling unit by a kind of protect whole wireless leakage current monitoring sensor not by broken by lightning, conditioning leakage current to the voltage that is fit to A/D, finish holding circuit, operational amplifier and the A/D change-over circuit composition of A/D translation function; Described environment temperature, humidity sensor are comprised of integrated digital formula Temperature Humidity Sensor and interface circuit, by spi bus and MCU swap data; Described environmental energy acquiring unit is stolen circuit and holding circuit or solar cell by the leakage current that obtains the required energy of wireless leakage current monitoring sensor normal operation from working environment and is formed; Described digital radio communication system module is comprised of two-way short-range radio frequency transceiver IC, crystal oscillator and antenna, and CPU is by spi bus read-write 2.4GHZ radio-frequency receiving-transmitting integrated circuit.
Voltage sampling conditioning unit in the described wireless voltage monitoring sensor is comprised of the voltage-phase information that gathers each phase place and standard potential transformer and the A/D change-over circuit of voltage magnitude information; Described power supply unit is a multichannel low-power consumption DC/DC change-over circuit; Described digital radio communication system module is comprised of two-way short-range radio frequency transceiver IC, crystal oscillator and antenna, and CPU is by spi bus read-write 2.4GHZ radio-frequency receiving-transmitting integrated circuit.
Below in conjunction with accompanying drawing the utility model is done more detailed the introduction:
As shown in Figure 1: package unit is by main frame 1(PC computing machine), some wireless sensor networks base station 2 (node), some wireless leakage current monitoring sensors 3, some wireless voltage monitoring sensors 4 etc. form.
Among Fig. 2, wireless leakage current sensor is referred to as I, and wireless voltage monitoring sensor is referred to as P.
Shown in Figure 3, wireless sensor network base station (node) is comprised of base station control circuit, four road radio frequency links, copper cable communication interface and power supply etc.
Above-mentioned base station control circuit is by MCU, storer and crystal composition.
Above-mentioned four road radio frequency links by two-way short-range radio frequency link (radio-frequency receiving-transmitting integrated circuit, crystal oscillator, antenna) and two-way length apart from radio frequency link (radio-frequency receiving-transmitting integrated circuit, crystal oscillator, antenna form).The two-way radio circuit consists of diversity transceiver, anti-multipath performance anti-fading to improve, and the raising reliability also backups each other simultaneously.The short-distance link radio circuit is used for consisting of front end short-distance wireless star link (hundred m level links) with sensors such as wireless leakage current monitoring sensor, wireless voltage monitoring sensors, and length is used for consisting of between base station (node) length of backbone network apart from wireless mesh link (Km level link) apart from radio frequency link.
Above-mentioned copper cable communication interface has certain or whole communication interfaces: the RS485 bus.
Above-mentioned power supply by solar cell, super capacitor energy-storage circuit, backup battery, wide externally fed interface (7～24Vdc), DC/DC mu balanced circuit etc. forms.
Control circuit is read and write each radio-frequency receiving-transmitting integrated circuit by spi bus, protocol analysis, routing algorithm, the routing table of finishing the overall network communication make up and management, and to the sensor under this backbone node network, off-line manages, and distributes address, frequency and communication time slot.
The base station also has the copper cable interface with external communication, and the RS-485 COM port of copper cable communication is used for radio network information is transferred to main frame.
Wireless leakage current sensor is comprised of control circuit 40, leakage current sensor 41, leakage current modulate circuit 42, environment temperature, humidity sensor 43, environmental energy acquiring unit 44, energy-storage units 45, power supply unit 46, wireless digital communication module 47, LCD display unit 48 and reserve battery 49 as shown in Figure 4.
Control circuit in the above-mentioned wireless leakage current monitoring sensor is comprised of microcontroller (MCU), storer and crystal etc.
Leakage current sensor in the above-mentioned wireless leakage current monitoring sensor can be little current transformer or direct resistance sampling low current sensor, and its function is to finish the leakage current sampling and provide the safety relief path for the high strength thunder-strike current.
Leakage current conditioning sampling unit in the above-mentioned wireless leakage current monitoring sensor is comprised of holding circuit, operational amplifier and A/D change-over circuit (can be integrated among the MPU) etc.; its function is that the whole wireless leakage current monitoring sensor of protection is not arrived the voltage that is fit to A/D by broken by lightning, conditioning leakage current, finishes the A/D translation function.
Environment temperature, humidity sensor in the above-mentioned wireless leakage current monitoring sensor are comprised of integrated digital formula Temperature Humidity Sensor and interface circuit, by spi bus and MCU swap data, its function is the monitoring of environmental humiture, for system provides lightning arrester working environment humiture data, thereby provide Data support for fault diagnosis.
Environmental energy acquiring unit in the above-mentioned wireless leakage current monitoring sensor is stolen circuit and holding circuit or solar cell by leakage current and is formed, and its function is to obtain the required energy of wireless leakage current monitoring sensor normal operation from working environment.
Energy-storage units in the above-mentioned wireless leakage current monitoring sensor is comprised of person's super capacitor or rechargeable battery and charging circuit, and its function is the energy that storage condition energy acquiring unit is collected.
Power supply unit in the above-mentioned wireless leakage current monitoring sensor is a multichannel low-power consumption DC/DC change-over circuit, its function is that high efficiency energy conversion with energy-storage units or reserve battery becomes the suitable voltage in each unit, to guarantee wireless leakage current monitoring sensor normal operation.
Digital radio communication system module in the above-mentioned wireless leakage current monitoring sensor is comprised of two-way short-range radio frequency transceiver IC, crystal oscillator and antenna, and CPU is by spi bus read-write 2.4GHZ radio-frequency receiving-transmitting integrated circuit.
LCD display unit in the above-mentioned wireless leakage current monitoring sensor is a Chinese characters display screen, its demonstration to the effect that: lightning arrestor movement number of times, total current, current in resistance property and 3 subharmonic currents.
Reserve battery in the above-mentioned wireless leakage current monitoring sensor is to adopt the inferior battery of lithium.
Wireless voltage monitoring sensor is comprised of control circuit 51, voltage sampling conditioning unit 52, power supply unit 53, wireless digital communication module 54 and reserve battery 55 as shown in Figure 5.
Control circuit in the above-mentioned wireless voltage monitoring sensor is comprised of microcontroller (MCU), storer and crystal etc.
Voltage sampling conditioning unit in the above-mentioned wireless voltage monitoring sensor is comprised of standard potential transformer and A/D change-over circuit (can be integrated among the MCU) etc., and its function is voltage-phase information and the voltage magnitude information that gathers each phase place.
Power supply unit in the above-mentioned wireless voltage monitoring sensor is a multichannel low-power consumption DC/DC change-over circuit, its function is that high efficiency energy conversion with energy-storage units or reserve battery becomes the suitable voltage in each unit, to guarantee wireless voltage monitoring sensor normal operation.
Digital radio communication system module in the above-mentioned wireless voltage monitoring sensor is comprised of two-way short-range radio frequency transceiver IC, crystal oscillator and antenna, and CPU is by spi bus read-write 2.4GHZ radio-frequency receiving-transmitting integrated circuit.
Reserve battery in the above-mentioned wireless leakage current monitoring sensor is to adopt the inferior battery of lithium.
Embodiment:
Main frame: main frame is comprised of computing machine and main control software, main control software is a wireless sense network software platform, and this platform mainly possesses following functions: the issue of the computing of the entity device of the maintenance of multiple wireless senser and sensor network, setting parameter, application and the management of virtual unit, wireless senser Monitoring Data and storage, equipment under test state estimation and auto-alarming, man-machine dialog interface and warning information.
Data transmission base station: formed by microcontroller (MCU), node control software, two-channel digital wireless communication module, RS-485 communication interface, high-capacity FLASH, power supply.
Node is mainly finished wireless senser and is compiled function and Function of Information Fusion to the communication of main frame.The sensors such as node and wireless leakage current monitoring sensor, wireless voltage monitoring sensor consist of star-network, can consist of by digital radio communication system long apart from mesh network, then interconnected by wired mode and main frame by at least one node wherein between the node.
Wireless leakage current sensor: wireless leakage current sensor: formed by control circuit, leakage current conditioning sampling unit, environment temperature, humidity sensor, power supply unit, digital radio communication system module, LCD display unit and reserve battery.
The major function of wireless leakage current monitoring sensor is to measure the leakage current of lightning arrester, and by each harmonic component and total current that FFT calculates leakage current, works in coordination with resistive component and the capacitive component of calculating leakage current with wireless voltage monitoring sensor.
Wireless leakage current monitoring sensor or super low-power consumption, it is self power supply by sun power, thereby realizes long-term on-line monitoring and need not to worry battery life.
Optional LCD display unit finishing man-machine interaction shows measured total leakage current, leakage current fundametal compoment, leakage current 3 order harmonic components and current in resistance property in real time.
Wireless voltage monitoring sensor: steal power supply unit, digital radio communication system module and reserve battery and form by control circuit, voltage transformer (VT) (PT) voltage conditioning sampling unit, PT.The major function of wireless voltage monitoring sensor is to measure voltage and the phase place of electrical network, and calculate each harmonic component in the line voltage by FFT, thereby provide voltage-phase information the collaborative resistive component that calculates leakage current for wireless leakage current monitoring sensor.
The device principle of work is:
The wireless sense network platform that wireless lightning arrester on-Line Monitor Device of the present utility model is an opening can have the wireless senser of other types to merge.
Wireless leakage current sensor is in dormant state usually, pass through during this period solar powered unit Accumulation current to ultracapacitor, until with overlying roaduay by the startup time slot of nodes coordinating after MCU automatically start, and open leakage current and nurse one's health sampling unit, the sampled leakage current signal, by the harmonic component of FFT calculating leakage current, and by working in coordination with the calculating resistive current component with wireless voltage monitoring sensor, these current data are presented on the LCD.
All the time in the monitoring mains voltage signal, the zero crossing of each voltage signal will be indicated and be broadcasted constantly wireless voltage monitoring sensor, and the content of broadcasting is wireless voltage monitoring sensor time and the wireless voltage monitoring sensor+T0 of the last zero crossing moment T.Then the delay Tdel i that routing node is received the rear calculating book node of time broadcasting of wireless voltage monitoring sensor transmits the wireless voltage monitoring sensor+T0 of T+Tdel i to next node.Deduct the machine processing time and routing delay time after the wireless leakage current monitoring sensor time of receipt (T of R) broadcasting, calculate the relative time error of T0 and local zone time, demarcate zero point constantly, thereby calculate current in resistance property.
The wakeup time of wireless leakage current monitoring sensor is to coordinate definite time slot with its upper strata routing node (node or wireless leakage current monitoring sensor), finish measurement at this time slot, and sending to the node of determining according to routing table, node will be pooled to each sensor information through merging, filter, being transferred to main frame after comprehensive again.
Host stores, analyze these data, mate identification by the expert database with prior setting, thereby judge the quality state of each tested lightning arrester, when the lightning arrester generation performance is deteriorated to hazard level, in time automatically give the alarm, stop the generation of Explosion of on Arrester accident.
Claims (5)
1. leakage current of an arrester on-line monitoring system based on wireless sense network, this system comprises main frame, some wireless sensor networks base station, some wireless leakage current monitoring sensors, some wireless voltage monitoring sensors, it is characterized in that main frame, wireless leakage current monitoring sensor, each unit of wireless voltage monitoring sensor detects by the collaborative total current of finishing leakage current of an arrester of interconnected with wireless network, action frequency detects, harmonic current calculates, current in resistance property calculates and the issue of warning information, and wherein said wireless voltage monitoring sensor is measured time basic information and the voltage harmonic parameter of electrical network; Described wireless leakage current monitoring sensor is measured the leakage current parameter of lightning arrester and environment temperature, the humidity of lightning arrester; Described wireless sensor network base station is as the backbone node of network, with between each wireless voltage monitoring sensor, the wireless leakage current monitoring sensor, connect between wireless voltage monitoring sensor, wireless leakage current monitoring sensor and the main frame; The mains by harmonics information of leakage current monitoring sensor leakage current of an arrester information that described host process is wireless, ambient temperature and humidity information and fusing wireless voltage monitoring sensor forms the surge arrester failure information criterion.
2. the leakage current of an arrester on-line monitoring system based on wireless sense network according to claim 1, it is characterized in that described wireless sensor network base station is comprised of base station control circuit, four road radio frequency links, copper cable communication interface and power supply, wherein said base station control circuit is by microcontroller, storer and crystal composition; Described four road radio frequency links are comprised of apart from radio frequency link two-way short-range radio frequency link and two-way length; Described copper cable communication interface is used for being connected with the communication of outside, and the RS-485 COM port of copper cable communication is used for radio network information is transferred to main frame; The base station control circuit is read and write each radio-frequency receiving-transmitting integrated circuit by spi bus, protocol analysis, routing algorithm, the routing table of finishing the overall network communication make up and management, and to the sensor under this backbone node network, off-line manages, and distributes address, frequency and communication time slot.
3. the leakage current of an arrester on-line monitoring system based on wireless sense network according to claim 1 is characterized in that described wireless leakage current monitoring sensor is comprised of control circuit, leakage current sensor, leakage current conditioning sampling unit, environment temperature, humidity sensor, environmental energy acquiring unit, energy-storage units, power supply unit, digital radio communication system module, LCD display unit and reserve battery; Described wireless voltage monitoring sensor is comprised of control circuit, voltage sampling conditioning unit, power supply unit, digital radio communication system module and reserve battery; Control circuit in the wherein said wireless leakage current monitoring sensor and the control circuit in the wireless voltage monitoring sensor are respectively by microcontroller, storer and crystal composition.
4. the leakage current of an arrester on-line monitoring system based on wireless sense network according to claim 3 is characterized in that the leakage current sensor in the described wireless leakage current monitoring sensor is a kind of little current transformer or direct resistance sampling low current sensor of finishing the leakage current sampling and the safety relief path being provided for the high strength thunder-strike current; Described leakage current conditioning sampling unit by a kind of protect whole wireless leakage current monitoring sensor not by broken by lightning, conditioning leakage current to the voltage that is fit to A/D, finish holding circuit, operational amplifier and the A/D change-over circuit composition of A/D translation function; Described environment temperature, humidity sensor are comprised of integrated digital formula Temperature Humidity Sensor and interface circuit, by spi bus and MCU swap data; Described environmental energy acquiring unit is stolen circuit and holding circuit or solar cell by the leakage current that obtains the required energy of wireless leakage current monitoring sensor normal operation from working environment and is formed; Described digital radio communication system module is comprised of two-way short-range radio frequency transceiver IC, crystal oscillator and antenna, and CPU is by spi bus read-write 2.4GHZ radio-frequency receiving-transmitting integrated circuit.
5. the leakage current of an arrester on-line monitoring system based on wireless sense network according to claim 3 is characterized in that the voltage sampling conditioning unit in the described wireless voltage monitoring sensor is comprised of the voltage-phase information that gathers each phase place and standard potential transformer and the A/D change-over circuit of voltage magnitude information; Described power supply unit is a multichannel low-power consumption DC/DC change-over circuit; Described digital radio communication system module is comprised of two-way short-range radio frequency transceiver IC, crystal oscillator and antenna, and CPU is by spi bus read-write 2.4GHZ radio-frequency receiving-transmitting integrated circuit.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117601A (en) * | 2013-03-06 | 2013-05-22 | 江苏省电力公司无锡供电公司 | Transformer substation ground lead remote monitoring device based on wireless sensor network |
| CN103281353A (en) * | 2013-04-26 | 2013-09-04 | 浙江工商大学 | Low-power-consumption environment sensing node system and method for high-voltage power grid lead |
| CN103345210A (en) * | 2013-06-07 | 2013-10-09 | 南京顺泰科技有限公司 | Lightning arrester remote line monitoring system |
| CN103941139A (en) * | 2014-04-21 | 2014-07-23 | 江苏物联网研究发展中心 | Electric leakage monitoring and protecting system based on internet of things technology |
| CN104181428A (en) * | 2014-08-29 | 2014-12-03 | 国网安徽省电力公司淮南供电公司 | Insulation online state monitoring device of zinc oxide arrester |
| CN105024438A (en) * | 2015-07-14 | 2015-11-04 | 合肥华信电动科技发展有限公司 | Intelligent power source monitoring device |
| CN105021232A (en) * | 2015-08-06 | 2015-11-04 | 南阳高新区天成电气设备有限公司 | Method and device of humiture on-line monitoring of metal-oxide surge arrester |
| CN106168640A (en) * | 2016-06-27 | 2016-11-30 | 国网江苏省电力公司宿迁供电公司 | A kind of Zinc-Oxide Arrester state online test method |
| CN106406125A (en) * | 2015-07-28 | 2017-02-15 | 国网河南省电力公司南阳供电公司 | Intelligent overvoltage protection and detection alarm device |
| CN106597203A (en) * | 2017-01-18 | 2017-04-26 | 成都玉磊科技有限公司 | Lightning arrester leakage detecting and monitoring system |
| CN106707056A (en) * | 2016-11-30 | 2017-05-24 | 国网江苏省电力公司盐城供电公司 | Intelligent online monitoring system of lightning arrester based on Internet of Things technology |
| CN106771719A (en) * | 2016-11-28 | 2017-05-31 | 唐恩(厦门)电气有限公司 | A kind of metal oxide arrester tester |
| CN108809353A (en) * | 2018-07-19 | 2018-11-13 | 深圳振华富电子有限公司 | Integrated form network information transfer device |
| CN110164638A (en) * | 2019-05-16 | 2019-08-23 | 山东电力设备有限公司 | The electric transmission line lightning arrester device of the air gap is adjusted according to environmental data |
| CN110514913A (en) * | 2018-05-21 | 2019-11-29 | 南京南瑞继保电气有限公司 | A kind of substation's lightning stroke on-line monitoring method |
| US11777303B2 (en) | 2019-03-11 | 2023-10-03 | Hitachi Energy Switzerland Ag | Leakage current based remote monitoring device and method for disconnector devices |
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2012
- 2012-03-06 CN CN 201220080167 patent/CN202710690U/en not_active Expired - Fee Related
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| CN103117601A (en) * | 2013-03-06 | 2013-05-22 | 江苏省电力公司无锡供电公司 | Transformer substation ground lead remote monitoring device based on wireless sensor network |
| CN103281353B (en) * | 2013-04-26 | 2016-07-06 | 浙江工商大学 | High-voltage fence wire low-power consumption environment sensing node system and method |
| CN103281353A (en) * | 2013-04-26 | 2013-09-04 | 浙江工商大学 | Low-power-consumption environment sensing node system and method for high-voltage power grid lead |
| CN103345210A (en) * | 2013-06-07 | 2013-10-09 | 南京顺泰科技有限公司 | Lightning arrester remote line monitoring system |
| CN103345210B (en) * | 2013-06-07 | 2016-04-20 | 南京顺泰科技有限公司 | A kind of lightning arrester remote line supervisory system |
| CN103941139A (en) * | 2014-04-21 | 2014-07-23 | 江苏物联网研究发展中心 | Electric leakage monitoring and protecting system based on internet of things technology |
| CN104181428A (en) * | 2014-08-29 | 2014-12-03 | 国网安徽省电力公司淮南供电公司 | Insulation online state monitoring device of zinc oxide arrester |
| CN105024438A (en) * | 2015-07-14 | 2015-11-04 | 合肥华信电动科技发展有限公司 | Intelligent power source monitoring device |
| CN106406125A (en) * | 2015-07-28 | 2017-02-15 | 国网河南省电力公司南阳供电公司 | Intelligent overvoltage protection and detection alarm device |
| CN105021232A (en) * | 2015-08-06 | 2015-11-04 | 南阳高新区天成电气设备有限公司 | Method and device of humiture on-line monitoring of metal-oxide surge arrester |
| CN106168640A (en) * | 2016-06-27 | 2016-11-30 | 国网江苏省电力公司宿迁供电公司 | A kind of Zinc-Oxide Arrester state online test method |
| CN106168640B (en) * | 2016-06-27 | 2019-01-25 | 国网江苏省电力公司宿迁供电公司 | A kind of Zinc-Oxide Arrester state online test method |
| CN106771719A (en) * | 2016-11-28 | 2017-05-31 | 唐恩(厦门)电气有限公司 | A kind of metal oxide arrester tester |
| CN106707056A (en) * | 2016-11-30 | 2017-05-24 | 国网江苏省电力公司盐城供电公司 | Intelligent online monitoring system of lightning arrester based on Internet of Things technology |
| CN106597203A (en) * | 2017-01-18 | 2017-04-26 | 成都玉磊科技有限公司 | Lightning arrester leakage detecting and monitoring system |
| CN110514913A (en) * | 2018-05-21 | 2019-11-29 | 南京南瑞继保电气有限公司 | A kind of substation's lightning stroke on-line monitoring method |
| CN108809353A (en) * | 2018-07-19 | 2018-11-13 | 深圳振华富电子有限公司 | Integrated form network information transfer device |
| CN108809353B (en) * | 2018-07-19 | 2024-04-05 | 深圳振华富电子有限公司 | Integrated network information transmission device |
| US11777303B2 (en) | 2019-03-11 | 2023-10-03 | Hitachi Energy Switzerland Ag | Leakage current based remote monitoring device and method for disconnector devices |
| CN110164638A (en) * | 2019-05-16 | 2019-08-23 | 山东电力设备有限公司 | The electric transmission line lightning arrester device of the air gap is adjusted according to environmental data |
| CN110164638B (en) * | 2019-05-16 | 2024-02-23 | 山东电力设备有限公司 | Power transmission line lightning arrester device for adjusting air gap according to environmental data |
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