CN102879667B - Lightning protection device on-line remote monitoring recorder - Google Patents
Lightning protection device on-line remote monitoring recorder Download PDFInfo
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Abstract
The invention relates to a lightning protection device on-line remote monitoring recorder. The lightning protection device on-line remote monitoring recorder is characterized in that a remote monitoring recorder is used for receiving data of a lightning protection module monitor and a ground resistance monitor and sending the data to a field host (upper computer) system through a wired or wireless network; the lightning protection module monitor is used for monitoring the degradation of a surge protector caused by lightning electromagnetic pulse in real time, providing reliable reference for detection of the performance of an arrester device, and sending the data to the remote monitoring recorder through a wireless or wired network; and the ground resistance monitor is used for monitoring a ground resistance value in real time and sending the data to the remote monitoring recorder through the wireless or wired network. The lightning protection device on-line remote monitoring recorder has the advantages that the arrester device can be monitored on line, relevant data such as ground resistance, leakage current and lightning stroke are acquired and stored in real time, the conditions of local lightning disasters and lightning protection equipment are mastered, a system can safely operate, the phenomenon that lightning protection data are not comprehensively recorded and counted and cannot be scientifically managed and scientifically designed in the prior art is eliminated, and future lightning protection design is scientific and targeted.
Description
Technical field
The present invention relates to the online remote monitoring registering instrument of a kind of lightning protection device, belong to technology of instrument and meter field.
Background technology
At present, lightning protection field great majority also adopt traditional lightning protection means, and product is single, detect and maintenance mode backwardness, and product self-inspection, intelligent degree are low, there is no a special lightning protection system.Although a lot of lightning protection devices have been installed, and running status does not have ladder of management, cannot know in appearance the quality of device, the relation that some device adds due to holding circuit, after module infringement with regard to automatic trip from, bring great hidden danger to the safe operation of equipment.Even if there is demonstration, also need to check to scene the real-time of impact protection.In addition, because modern production scale is large, large-scale lightning-protection system is installed the impact of the factors such as product quantity is many, device distribution wide, safeguard inconvenience, image data is difficult, after causing a lot of lightning-protection modules to lose efficacy, can not find in time, bring potential safety hazard to Thunder Protection.
Summary of the invention
The object of the present invention is to provide the online remote monitoring registering instrument of a kind of lightning protection device, it can realize the on-line monitoring to lightning protection component, to related data Real-time Collection, storages such as stake resistance, leakage current, thunderbolts, grasp local Lightning Disaster and thunder resisting equipment situation, guarantee system safety operation; Change in the past not comprehensively record and statistics of lightning protection data, cannot scientific management and the situation of science design, make lightning Protection Design from now on more there is science and specific aim.
Technical scheme of the present invention is achieved in that the online remote monitoring registering instrument of a kind of lightning protection device, comprise remote monitoring registering instrument, lightning-protection module monitor and grounding resistance monitor instrument three parts, it is characterized in that: remote monitoring registering instrument is related electrical parameters and the working state of system of the electric power system that is made up of power distribution cabinet and surge protecting box for Real-Time Monitoring, be responsible for receiving the data of lightning-protection module monitor and grounding resistance monitor instrument, by wired or wireless network, data delivered to on-the-spot main frame (host computer) system; Lightning-protection module monitor is the degradation that Real-Time Monitoring Surge Protector causes because of LEMP, for the performance that detects arrester device provides reliable foundation, by wireless or cable network, data is delivered to remote monitoring registering instrument; Grounding resistance monitor instrument is the size of Real-Time Monitoring grounding resistance, by wireless or cable network, data is delivered to remote monitoring registering instrument;
Described remote monitoring registering instrument comprises master controller, lightning data acquisition module, power supply Acquisition Circuit, ground connection decision circuitry, SPD module monitors circuit, switching power circuit, chip external memory circuit, indicator light circuit, temperature collection circuit, clock circuit, USB flash disk data acquisition circuit, key circuit, telecommunication circuit 1, telecommunication circuit 2 and the liquid crystal display circuit of remote monitoring registering instrument; Wherein master controller adopt at a high speed, anti-interference strong, multiple functional, microcontroller that memory capacity is large, lightning data Acquisition Circuit is connected with the master controller 5 of remote monitoring registering instrument, the lightning current data that collect is sent to by bus in the master controller 5 of remote monitoring registering instrument and processes; Power supply Acquisition Circuit is connected with the master controller of remote monitoring registering instrument, alternating current is sent into after overcommutation in the analog to digital converter that the master controller of remote monitoring registering instrument carries and is processed; Ground connection decision circuitry is connected with the master controller of remote monitoring registering instrument, and the isolation comparator circuit consisting of optically-coupled triode is delivered in the master controller of remote monitoring registering instrument and processed; SPD module monitors circuit is connected with master controller, and the status signal of SPD module, by light-coupled isolation, is sent in the master controller of remote monitoring registering instrument and is processed; Chip external memory circuit is connected with the master controller of remote monitoring registering instrument, and the related data of the data of system initialization and lightning current is stored, and prevents data power down loss; Indicator light circuit is connected with master controller, the Switching Power Supply of remote monitoring registering instrument; Temperature collection circuit is connected with the master controller of remote monitoring registering instrument, gathers environment temperature, by bus, data is sent in master controller; Clock circuit is connected with master controller, and USB flash disk data acquisition circuit is connected with the master controller of remote monitoring registering instrument, is the every data current by USB flash disk acquisition and recording instrument; Key circuit is connected with the master controller of remote monitoring registering instrument, is work and the demonstration of controlling registering instrument by each switch; Telecommunication circuit 1 communicates with on-the-spot main frame (host computer) system, and telecommunication circuit 2 communicates with SPD information monitoring registering instrument, stake resistance monitoring and recording instrument; Liquid crystal display circuit is that registering instrument front panel shows; Switch power module is that the alternating current of power supply is converted to multi-channel DC voltage to system power supply.
Telecommunication circuit 1 in described remote monitoring registering instrument has multiple, and wireless mode can be selected GPRS module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode.
Telecommunication circuit 2 in described remote monitoring registering instrument has multiple, and wireless mode can be selected RF wireless module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode; Communication protocol adopts ModBus industrial bus agreement.
Lightning-protection module monitor comprises master controller, current transformer, current-to-voltage converting circuit, SPD module monitors circuit, switching power circuit, chip external memory circuit, indicator light circuit, temperature collection circuit, clock circuit, USB flash disk data acquisition circuit, telecommunication circuit; Wherein current transformer is connected with current-to-voltage converting circuit, utilizes electromagnetic induction non-contact capture low current signal.Current-to-voltage converting circuit is connected with the master controller of lightning-protection module monitor, and the current signal collecting is converted into voltage signal, is sent to the analog to digital converter carrying in master controller and processes; SPD module monitors circuit is connected with master controller, gathers multichannel SPD module status signal; Chip external memory circuit is connected with the master controller of lightning-protection module monitor, and the related data of the data of system initialization and lightning current is stored, and indicator light circuit is connected with the master controller of lightning-protection module monitor, display system duty; Temperature collection circuit is connected with the master controller of lightning-protection module monitor, gathers environment temperature, data is sent in the master controller of lightning-protection module monitor by bus; Clock circuit is connected with master controller, and USB flash disk data acquisition circuit is connected with the master controller of lightning-protection module monitor, and telecommunication circuit is to communicate with remote monitoring registering instrument.Switch power module is that the alternating current of power supply is converted to multi-channel DC voltage to system power supply.
Telecommunication circuit in above-mentioned lightning-protection module monitor has multiple, and wireless mode can be selected RF wireless module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode.Communication protocol adopts ModBus industrial bus agreement.
Grounding resistance monitor instrument comprises master controller, stake resistance Acquisition Circuit, relay switch commutation circuit, indicator light circuit, power circuit and the communication module of grounding resistance monitor instrument; Wherein stake resistance Acquisition Circuit is connected with the master controller of grounding resistance monitor instrument, is responsible for gathering the resistance value of current ground loop, is sent in the master controller of grounding resistance monitor instrument and processes; Relay switch commutation circuit is connected with the master controller of grounding resistance monitor instrument, and indicator light circuit is connected with the master controller of grounding resistance monitor instrument, and power circuit is that the alternating current of power supply is converted to multi-channel DC voltage to system power supply.
Telecommunication circuit in above-mentioned stake resistance monitoring and recording instrument has multiple, and wireless mode can be selected RF wireless module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode.Communication protocol adopts ModBus industrial bus agreement.
Good effect of the present invention is that it can realize the on-line monitoring to lightning protection component, to related data Real-time Collection, storages such as stake resistance, leakage current, thunderbolts, grasps local Lightning Disaster and thunder resisting equipment situation, guarantees system safety operation; Specifically
(1). monitor and record the surge current that acts on the thunder-strike current of surge protecting box or caused by surge voltage;
(2). monitor online power work state;
(3). monitoring and recording instrument Grounding;
(4). the temperature of Real-Time Monitoring diverse location;
(5) .U dish carries out data acquisition;
(6). the heterogeneous line spd state of Real-Time Monitoring;
(7). the heterogeneous line SPD of Real-Time Monitoring temperature;
(8). the heterogeneous line SPD of Real-Time Monitoring leakage current;
(9). the size of Real-Time Monitoring grounding resistance;
(10). by limited or Wireless Telecom Equipment, information is reached to Surveillance center and realize remote monitoring.
brief description of the drawings
Fig. 1 is the general principles structured flowchart of this instrument.
Fig. 2 is the structured flowchart of remote monitoring registering instrument.
Fig. 3 is the structured flowchart of lightning-protection module monitor.
Fig. 4 is the structured flowchart of grounding resistance monitor instrument.
Fig. 5 is remote monitoring registering instrument ground wire decision circuitry figure.
Fig. 6 is the current-to-voltage converting circuit figure of lightning-protection module monitor.
Fig. 7 is the telecommunication circuit figure of grounding resistance monitor instrument.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described: as shown in Figure 1, the online remote monitoring registering instrument of a kind of lightning protection device, comprise remote monitoring registering instrument 1, lightning-protection module monitor 4 and grounding resistance monitor instrument 3 three parts, it is characterized in that: remote monitoring registering instrument 1 is related electrical parameters and the working state of system of the electric power system that is made up of power distribution cabinet and surge protecting box for Real-Time Monitoring, comprise and monitor and record the surge current that acts on the thunder-strike current of surge protecting box or have surge voltage to cause, monitor the duty of online power supply, monitoring grounding situation, the temperature of monitoring diverse location.Play data relay effect simultaneously, be responsible for receiving the data of lightning-protection module monitor 4 and grounding resistance monitor instrument 3, by wired or wireless network, data are delivered to on-the-spot main frame (host computer) system 2; Lightning-protection module monitor 4 is degradations that Real-Time Monitoring Surge Protector causes because of LEMP, for the performance that detects arrester device provides reliable foundation, by wireless or cable network, data is delivered to remote monitoring registering instrument 1; Comprise the size of each power supply phase line leakage current of monitoring SPD, monitor each SPD module temperature, the fault of monitoring SPD module, data storage and USB flash disk collection, deliver to data the functions such as remote monitoring registering instrument 1 by wireless or cable network.Grounding resistance monitor instrument 3 is sizes of Real-Time Monitoring grounding resistance, comprises monitoring grounding resistance value, by wireless or cable network, data is delivered to remote monitoring registering instrument 1;
As shown in Figure 2, remote monitoring registering instrument 1 comprises master controller 5, lightning data acquisition module, power supply Acquisition Circuit, ground connection decision circuitry 6, SPD module monitors circuit, switching power circuit, chip external memory circuit, indicator light circuit, temperature collection circuit, clock circuit, USB flash disk data acquisition circuit 7, key circuit, telecommunication circuit 1, telecommunication circuit 2 and the liquid crystal display circuit of remote monitoring registering instrument; Wherein the master controller of remote monitoring registering instrument 1 adopt at a high speed, anti-interference strong, multiple functional, microcontroller that memory capacity is large, in program, structure adopts time slice time-sharing scheduling and AM/BAM interrupt mechanism.Lightning data Acquisition Circuit is connected with the IO mouth of the master controller of remote monitoring registering instrument 1, the lightning current data that collect is sent to by bus in the master controller of remote monitoring registering instrument 1 and processes.Power supply Acquisition Circuit is by alternating current after overcommutation, and the analog to digital converter carrying with the master controller of remote monitoring registering instrument 1 is connected, and carries out data processing.Ground connection decision circuitry 6 with alternating current IO mouth of master controller after overcommutation is connected, deliver in master controller and process by the isolation comparator circuit of the compositions such as optically-coupled triode.SPD module monitors circuit is connected with the master controller of remote monitoring registering instrument 1, and the status signal of SPD module, by light-coupled isolation, is sent in the master controller of remote monitoring registering instrument 1 and is processed.The I of the master controller of chip external memory circuit and remote monitoring registering instrument 1
2c connects, and the related data of the data of system initialization and lightning current is stored, and prevents data power down loss.Indicator light circuit is connected with master controller, the Switching Power Supply of remote monitoring registering instrument 1, comprises system power supply pilot lamp, alarm lamp and communications status pilot lamp.Temperature collection circuit is connected with the IO mouth of the master controller of remote monitoring registering instrument 1, gathers environment temperature, by bus, data is sent in the master controller of remote monitoring registering instrument 1.Clock circuit is connected with the SPI mouth of the master controller of remote monitoring registering instrument 1, is to record the current working time.USB flash disk data acquisition circuit 7 is connected with the IO mouth of the master controller of remote monitoring registering instrument 1, is the every data current by USB flash disk acquisition and recording instrument.Key circuit is connected with the IO mouth of the master controller of remote monitoring registering instrument 1, is work and the demonstration of controlling registering instrument by each switch.Telecommunication circuit 1 is to communicate with on-the-spot main frame (host computer) system 2.Telecommunication circuit 1 is to communicate with on-the-spot main frame (host computer) system 2.Telecommunication circuit 2 is to communicate with SPD information monitoring registering instrument, stake resistance monitoring and recording instrument.Liquid crystal display circuit is that registering instrument front panel shows.Switch power module is that the alternating current of power supply is converted to multi-channel DC voltage to system power supply.
Telecommunication circuit 1 in above-mentioned remote monitoring registering instrument 1 has multiple, and wireless mode can be selected GPRS module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode, is connected and carries out exchanges data with the master controller of remote monitoring registering instrument 1 by serial ports.
Telecommunication circuit 2 in above-mentioned remote monitoring registering instrument 1 has multiple, and wireless mode can be selected RF wireless module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode.Communication protocol adopts ModBus industrial bus agreement, is connected and carries out exchanges data with the master controller of remote monitoring registering instrument 1 by serial ports.
As shown in Figure 3, the structure of lightning-protection module monitor 4 comprises master controller, current transformer, current-to-voltage converting circuit 8, SPD module monitors circuit, switching power circuit, chip external memory circuit, indicator light circuit, temperature collection circuit, clock circuit, USB flash disk data acquisition circuit 7, the telecommunication circuit of lightning-protection module monitor.The master controller of lightning-protection module monitor adopts at a high speed, anti-interference strong, multiple functional, microcontroller that memory capacity is large, and in program, in employing program, structure adopts AM/BAM interrupt mechanism.Circuit mutual inductor is connected with current-to-voltage converting circuit 8, utilizes electromagnetic induction non-contact capture low current signal.Current-to-voltage converting circuit 8 is that the current signal that collects is converted into voltage signal, is connected and carries out data processing with the AD converter of the middle controller of lightning-protection module monitor.SPD module monitors circuit is connected with the IO mouth of the master controller of lightning-protection module monitor, gathers multichannel SPD module status signal.The middle controller I of chip external memory circuit and lightning-protection module monitor
2c bus connects, and is that the related data of the data of system initialization and lightning current is stored, and prevents data power down loss.Indicator light circuit is connected with the IO mouth of the master controller of lightning-protection module monitor, display system duty.Temperature collection circuit is connected with the master controller moral IO mouth of lightning-protection module monitor, gathers environment temperature, by bus, data is sent in the master controller of lightning-protection module monitor.Clock circuit is connected with the master controller spi bus of lightning-protection module monitor, is to record the current working time.USB flash disk data acquisition circuit 7 is connected with the IO mouth of the master controller of lightning-protection module monitor, is the every data current by USB flash disk acquisition and recording instrument.Telecommunication circuit is to communicate with remote monitoring registering instrument 1.Switch power module is that the alternating current of power supply is converted to multi-channel DC voltage to system power supply.
Telecommunication circuit in above-mentioned lightning-protection module monitor 4 has multiple, and wireless mode can be selected RF wireless module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode.Communication protocol adopts ModBus industrial bus agreement, is connected and carries out exchanges data with the master controller of lightning-protection module monitor 4 by serial ports.
As shown in Figure 4, the structure of grounding resistance monitor instrument 3 comprises master controller, stake resistance acquisition module, relay switch commutation circuit, indicator light circuit, power circuit and the communication module of grounding resistance monitor instrument.The master controller of grounding resistance monitor instrument 3 adopts at a high speed, anti-interference strong, multiple functional microcontroller, and in program, in employing program, structure adopts AM/BAM interrupt mechanism.Stake resistance acquisition module is connected with the master controller of grounding resistance monitor instrument, is responsible for gathering the resistance value of current ground loop, is sent in the master controller of grounding resistance monitor instrument processes by serial ports.Relay switch commutation circuit is connected with the IO mouth of the master controller of grounding resistance monitor instrument 3, is responsible for switching circuit.Indicator light circuit is connected with the IO mouth of the master controller of grounding resistance monitor instrument 3, comprises system power supply pilot lamp, alarm lamp and communications status pilot lamp.Power circuit is that the alternating current of power supply is converted to multi-channel DC voltage to system power supply.
Telecommunication circuit in above-mentioned stake resistance monitoring and recording instrument has multiple, and wireless mode can be selected RF wireless module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode.Communication protocol adopts ModBus industrial bus agreement, is connected and carries out exchanges data with the master controller of grounding resistance monitor instrument 3 by serial ports.
As shown in Figure 5, this circuit diagram is remote monitoring registering instrument 1 ground wire decision circuitry figure, and whether effect is to detect ground wire to disconnect., forming loop with ground wire, thereby judging whether this loop exists voltage after the voltage isolated variable between live wire and zero line by Industrial Frequency Transformer, if there is sinusoidal voltage, thinking that ground wire is intact; If open circuit, thinks that ground wire disconnects.In this circuit, the voltage after transformer isolation conversion is through light-coupled isolation, then through the comparer of triode composition, is sent in the IO mouth of master controller in remote monitoring registering instrument 1 and carries out Check processing after voltage after treatment.If the 5V low and high level that voltage is 50Hz, illustrates that ground wire is intact; If voltage is low level, illustrate that ground wire disconnects.
As shown in Figure 6, be the current-to-voltage converting circuit figure of lightning-protection module monitor 4.The effect of this circuit is that the current signal that current transformer is collected is converted to voltage signal, is sent in the AD converter of the primary controller in lightning-protection module monitor 4 and processes.In Fig. 6, diode shields; Prime amplifier to act as current conversion be voltage and amplify certain multiple; Act as filtering, stopping direct current and the fine setting of rear class amplifier are amplified.
As shown in Figure 7, the data processing of grounding resistance monitor instrument 3 and telecommunication circuit.The effect of this circuit is to process the stake resistance data that collect, and through after corresponding computing, by serial ports, data is sent in communication module, then data is sent in remote detection registering instrument and is gathered.The commutation circuit of triode and relay composition in figure, is connected with the IO mouth of the primary controller of grounding resistance monitor instrument 3, is mainly the switching auxiliary earth utmost point.The primary controller of grounding resistance monitor instrument 3 is effects of carrying out data operation, switching earthing pole, sending data.LED light is connected with the IO mouth of the primary controller of grounding resistance monitor instrument 3, shows current duty.
Embodiment
Certain industrial building is provided with online remote monitoring the registering instrument 1 and 1 cover online remote monitoring and managing system of lightning protection (host computer) of 3 cover lightning protection, according to on-the-spot factory distribution situation, the online remote monitoring registering instrument of 1 cover lightning protection comprises 1 remote monitoring registering instrument 1, is arranged near first wave surge protector; 2 lightning-protection module monitors 4, are arranged on respectively near secondary, three grades of Surge Protectors; 1 grounding resistance monitor instrument 3, is arranged near earthing pole.Through calculating, need altogether 3 remote monitoring registering instruments, 4,3 grounding resistance monitor instruments 3 of 6 lightning-protection module monitors.Remote monitoring registering instrument 1 adopts RF(Radio Frequency with the communication module of lightning-protection module monitor 4, grounding resistance monitor instrument 3) wireless module (model F50), remote monitoring registering instrument 1 is communicated by letter with host computer and is adopted the ZigBee wireless module (model HAC-UNet) that has wireless routing.Master system adopts the magnificent industrial computer of grinding of corresponding program (model 610L) is installed.Sound alarm card adopts east to enter D081A analog voice card.
The structure of remote monitoring registering instrument 1 as shown in Figure 2, comprises master controller, lightning data acquisition module, power supply Acquisition Circuit, ground connection decision circuitry 6, SPD module monitors circuit, switching power circuit, chip external memory circuit, indicator light circuit, temperature collection circuit, clock circuit, USB flash disk data acquisition circuit 7, key circuit, telecommunication circuit 1, telecommunication circuit 2 and liquid crystal display circuit.The master controller of described remote monitoring registering instrument 1 is microcontroller, and model ATmega128A(ATMEL company produces), be responsible for registering instrument control.Power supply Acquisition Circuit is made up of resistance, electric capacity, diode, operational amplifier, and the model of key element operational amplifier is that LM324(Texas Instruments produces).Ground connection decision circuitry 6 is made up of resistance, photoelectrical coupler and triode, and key element photoelectrical coupler model is that TLP521(TOSHIBA company produces).SPD module monitors electricity routing resistance, photoelectrical coupler composition, key element photoelectrical coupler model is that TLP521(TOSHIBA company produces).Switch power supply route AC-DC module, resistance, electric capacity, inductance, transformer, diode composition, key element AC-DC module model is that LH20-10C0512-04(Guangzhou Jin Shengyang company produces).Chip external memory electricity routing resistance, eeprom chip composition, key element eeprom chip model is that AT24C256B(ATMEL company produces).Temperature collection circuit is made up of resistance and temperature sensor, and key element temperature sensor model is that DS18B20(Dallas company produces).Clock circuit is made up of crystal oscillator, resistance, battery, time chip, and Primary Component time chip is that DS1302(Dallas company produces).USB flash disk data acquisition circuit 7 is made up of crystal oscillator, resistance, electric capacity, USB flash disk read-write chip, and Primary Component USB flash disk read-write chip model is that CH376S(Nanjing Qin Heng company produces).
The structure of lightning-protection module monitor 4 as shown in the figure, comprises master controller, current transformer, current converter circuit 8, SPD module monitors circuit, switching power circuit, chip external memory circuit, indicator light circuit, temperature collection circuit, clock circuit, USB flash disk data acquisition circuit 7, the telecommunication circuit of lightning-protection module monitor.
The master controller of described lightning-protection module monitor is microcontroller, and model ATmega32A(ATMEL company produces), be responsible for registering instrument control.Current converter circuit is made up of resistance, electric capacity, diode, operational amplifier, and the model of key element operational amplifier is that TLC274(Texas Instruments produces).Chip external memory electricity routing resistance, eeprom chip composition, key element eeprom chip model is that AT24C256B(ATMEL company produces).Temperature collection circuit is made up of resistance and temperature sensor, and key element temperature sensor model is that DS18B20(Dallas company produces).Clock circuit is made up of crystal oscillator, resistance, battery, time chip, and Primary Component time chip is that DS1302(Dallas company produces).USB flash disk data acquisition circuit 7 is made up of crystal oscillator, resistance, electric capacity, USB flash disk read-write chip, and Primary Component USB flash disk read-write chip model is that CH376S(Nanjing Qin Heng company produces).
The structure of grounding resistance monitor instrument 3 as shown in the figure.Comprise master controller, stake resistance Acquisition Circuit, relay switch commutation circuit, indicator light circuit, power circuit and the communication module of lightning-protection module monitor.Described master controller is microcontroller, and model AT98C2051(ATMEL company produces), be responsible for registering instrument control.Relay switch commutation circuit is by relay, resistance, electric capacity, diode, triode, and Primary Component relay model is that JQX-14FT(Shen Le electric corporation produces).
Claims (4)
1. the online remote monitoring registering instrument of lightning protection device, comprise remote monitoring registering instrument, lightning-protection module monitor and grounding resistance monitor instrument three parts, it is characterized in that: remote monitoring registering instrument is related electrical parameters and the working state of system of the electric power system that is made up of power distribution cabinet and surge protecting box for Real-Time Monitoring, be responsible for receiving the data of lightning-protection module monitor and grounding resistance monitor instrument, by wired or wireless network, data delivered to on-the-spot main frame (host computer) system; Lightning-protection module monitor is the degradation that Real-Time Monitoring Surge Protector causes because of LEMP, for the performance that detects arrester device provides reliable foundation, by wireless or cable network, data is delivered to remote monitoring registering instrument; Grounding resistance monitor instrument is the size of Real-Time Monitoring grounding resistance, by wireless or cable network, data is delivered to remote monitoring registering instrument;
Described remote monitoring registering instrument comprises master controller, lightning data acquisition module, power supply Acquisition Circuit, ground connection decision circuitry, SPD module monitors circuit, switching power circuit, chip external memory circuit, indicator light circuit, temperature collection circuit, clock circuit, USB flash disk data acquisition circuit, key circuit, telecommunication circuit 1, telecommunication circuit 2 and the liquid crystal display circuit of remote monitoring registering instrument; Wherein master controller adopt at a high speed, anti-interference strong, multiple functional, microcontroller that memory capacity is large, lightning data acquisition module is connected with the master controller of remote monitoring registering instrument, the lightning current data that collect is sent to by bus in the master controller of remote monitoring registering instrument and processes; Power supply Acquisition Circuit is connected with the master controller of remote monitoring registering instrument, alternating current is sent into after overcommutation in the analog to digital converter that the master controller of remote monitoring registering instrument carries and is processed; Ground connection decision circuitry is connected with the master controller of remote monitoring registering instrument, and the isolation comparator circuit consisting of optically-coupled triode is delivered in the master controller of remote monitoring registering instrument and processed; SPD module monitors circuit is connected with master controller, and the status signal of SPD module, by light-coupled isolation, is sent in the master controller of remote monitoring registering instrument and is processed; Chip external memory circuit is connected with the master controller of remote monitoring registering instrument, and the related data of the data of system initialization and lightning current is stored, and prevents data power down loss; Indicator light circuit is connected with master controller, the switching power circuit of remote monitoring registering instrument; Temperature collection circuit is connected with the master controller of remote monitoring registering instrument, gathers environment temperature, by bus, data is sent in master controller; Clock circuit is connected with master controller, and USB flash disk data acquisition circuit is connected with the master controller of remote monitoring registering instrument, is the every data current by USB flash disk acquisition and recording instrument; Key circuit is connected with the master controller of remote monitoring registering instrument, is work and the demonstration of controlling registering instrument by each switch; Telecommunication circuit 1 communicates with on-the-spot main frame (host computer) system, and telecommunication circuit 2 communicates with SPD module monitors circuit, grounding resistance monitor instrument; Liquid crystal display circuit is that registering instrument front panel shows; Switching power circuit is that the alternating current of power supply is converted to multi-channel DC voltage to system power supply;
Described lightning-protection module monitor comprises master controller, current transformer, current-to-voltage converting circuit, SPD module monitors circuit, switching power circuit, chip external memory circuit, indicator light circuit, temperature collection circuit, clock circuit, USB flash disk data acquisition circuit, telecommunication circuit; Wherein current transformer is connected with current-to-voltage converting circuit, utilizes electromagnetic induction non-contact capture low current signal; Current-to-voltage converting circuit is connected with the master controller of lightning-protection module monitor, and the current signal collecting is converted into voltage signal, is sent to the analog to digital converter carrying in master controller and processes; SPD module monitors circuit is connected with master controller, gathers multichannel SPD module status signal; Chip external memory circuit is connected with the master controller of lightning-protection module monitor, and the related data of the data of system initialization and lightning current is stored, and indicator light circuit is connected with the master controller of lightning-protection module monitor, display system duty; Temperature collection circuit is connected with the master controller of lightning-protection module monitor, gathers environment temperature, data is sent in the master controller of lightning-protection module monitor by bus; Clock circuit is connected with master controller, and USB flash disk data acquisition circuit is connected with the master controller of lightning-protection module monitor, and telecommunication circuit is to communicate with remote monitoring registering instrument; Switching power circuit module is that the alternating current of power supply is converted to multi-channel DC voltage to system power supply;
Described grounding resistance monitor instrument comprises master controller, stake resistance Acquisition Circuit, relay switch commutation circuit, indicator light circuit, power circuit and the communication module of grounding resistance monitor instrument; Wherein stake resistance Acquisition Circuit is connected with the master controller of grounding resistance monitor instrument, is responsible for gathering the resistance value of current ground loop, is sent in the master controller of grounding resistance monitor instrument and processes; Relay switch commutation circuit is connected with the master controller of grounding resistance monitor instrument, and indicator light circuit is connected with the master controller of grounding resistance monitor instrument, and power circuit is that the alternating current of power supply is converted to multi-channel DC voltage to system power supply.
2. according to the online remote monitoring registering instrument of a kind of lightning protection device described in claim 1, it is characterized in that telecommunication circuit 1 in described remote monitoring registering instrument has multiple, wireless mode can be selected GPRS module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode.
3. according to the online remote monitoring registering instrument of a kind of lightning protection device described in claim 1, it is characterized in that telecommunication circuit 2 in described remote monitoring registering instrument has multiple, wireless mode can be selected RF wireless module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode; Communication protocol adopts ModBus industrial bus agreement.
4. according to the online remote monitoring registering instrument of a kind of lightning protection device described in claim 1, it is characterized in that telecommunication circuit in described lightning-protection module monitor has multiple, wireless mode can be selected RF wireless module or the ZigBee wireless module with wireless routing; Wired mode can be selected power carrier or RS485 bus mode; Communication protocol adopts ModBus industrial bus agreement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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