CN209167432U - A kind of monitoring system of lightning-protection system - Google Patents
A kind of monitoring system of lightning-protection system Download PDFInfo
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- CN209167432U CN209167432U CN201821780862.0U CN201821780862U CN209167432U CN 209167432 U CN209167432 U CN 209167432U CN 201821780862 U CN201821780862 U CN 201821780862U CN 209167432 U CN209167432 U CN 209167432U
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Abstract
The utility model discloses a kind of monitoring systems of lightning-protection system, including data acquisition unit, processing unit and Computerized monitor system, several circuit-switched data acquisition units are connected to processing unit, data acquisition unit mainly includes signal conditioning unit, acquire the current sensor of lightning current signals, detect dry contact signal element whether temperature sensor and the instruction Surge Protector damage of Surge Protector temperature, the signal conditioning unit is to current sensor, temperature sensor and the information of dry contact signal element acquisition are transferred to processing unit after being pre-processed and are analyzed and processed, result is transferred to Computerized monitor system by communication unit by processing unit.The reason of situation of the Surge Protector of the monitoring multichannel of the utility model energy in real time, remotely, replaces traditional artificial inspection, reduces labor intensity, improve and check efficiency, can timely find failure, and can be damaged according to Analysis on monitoring data Surge Protector.
Description
Technical field
The utility model relates to the operating condition detection technique field of electronic device more particularly to a kind of monitoring systems of lightning-protection system
System.
Background technique
Lightning protection is extremely important for the railway system, and the lightning protection system of railway uses the scheme of integrated lightning protection,
Including the protection of row direct lightning strike, ground connection, equipotential, shielding, it is also necessary to be installed additional on power supply line, railway signal line, communication line special
With Surge Protector (SPD).The factors such as overvoltage, overcurrent, power supply system failure, the natural aging that SPD is generated due to lightning stroke
Failure, damage can occur.It presently mainly goes to check whether SPD damages by the mode of manual inspection, artificial regular visit is each
Whether whether a SPD stem grafting dotted state, visual inspection SPD damage, need replacing, large labor intensity, check low efficiency, time-consuming
It is long, the SPD of damage cannot be found in time, the reason of SPD damage can not be analyzed.
Utility model content
Technical problem to be solved in the utility model and the technical assignment of proposition are improved to the prior art, are provided
A kind of monitoring system of lightning-protection system, solves the lightning protection system in current technology by the way of manually patrolling, and labour is strong
The problem of degree is big, checks low efficiency, cannot find the SPD of damage in time.
In order to solve the above technical problems, the technical solution of the utility model is:
A kind of monitoring system of lightning-protection system, including data acquisition unit, processing unit and Computerized monitor system, setting exist
Several circuit-switched data acquisition units at different Surge Protectors are connected to processing unit, and the data acquisition unit mainly includes
Signal conditioning unit, acquire lightning current signals current sensor, detect Surge Protector temperature temperature sensor and refer to
Show dry contact signal element whether Surge Protector damage, the signal conditioning unit is to current sensor, temperature sensing
Device and dry contact signal element are respectively transferred to processing unit and are analyzed and processed after collected information is pre-processed, processing
Analysis and processing result is transferred to Computerized monitor system by communication unit by unit.The prison of lightning-protection system described in the utility model
The temperature that monitors Surge Protector, lightning current waveform and dry contact of the examining system using data acquisition unit in real time, long-range are believed
Number, can the Surge Protector to big quantity be monitored simultaneously, replace traditional mode manually patrolled, reduce labor intensity,
The investigation efficiency to lightning-protection system failure is improved, the working condition of Surge Protector can be completely grasped, go out in Surge Protector
It can timely be found when existing failure, to ensure the timeliness of maintenance replacement, and can be according to Analysis on monitoring data surge protection
The reason of device damages convenient for optimization, improves lightning-protection system, can effectively ensure that lightning-protection system can have always reliable protection to make
With ensureing the operational reliability and safety of circuit system.
Further, the signal conditioning unit include lightning current signals processing unit, processes temperature signal unit and
Dry contact signal processing unit, the lightning current signals processing unit carry out the collected lightning current signals of current sensor
Pretreatment, the processes temperature signal unit pre-process the temperature signal that temperature sensor detects, described is dry
Contact point signal processing unit pre-processes the collected dry contact signal of dry contact signal element, mainly will be collected
The digital signal that analog signal is converted into convenient for analysis processing.
Further, the current sensor uses Rogowski coil, and Rogowski coil is uniform winding in nonferromugnetic material
On loop coil, output signal is the differential of Current versus time, the electricity integrated by one to the voltage signal of output
Road, so that it may really restore input current.Rogowski coil has measurement range wide, and precision is high, and reliable and stable, response band is wide,
There is measurement and relay protection function simultaneously, small in size, light-weight, safety and meet environmental requirement.
Further, the lightning current signals processing unit include the integrator for being sequentially connected setting, signal conditioning circuit,
Lightning current filter circuit and level are lifted circuit, the integrator receive the lightning current signals of current sensor acquisition to its into
Row integral reduction, obtains true surge current signal, the output signal of integrator drops in the signal conditioning circuit
It makes an uproar amplitude modulation, lightning current filter circuit carries out analog filtering to signal, eliminates interference signal, and level lifting circuit will have positive and negative anodes
Property feature lightning current signals carry out level lifting processing, positive voltage range is translated the signals into, convenient for the use of subsequent conditioning circuit
The active device of single supply power supply is handled.
Further, the processes temperature signal unit includes temperature signal amplifying circuit and temperature signal filtered electrical
Road, the temperature signal amplifying circuit receive after the temperature signal that temperature sensor detects amplifies it and are conveyed to temperature
Signal filter circuit is spent by its filtering interference signals.
Further, the dry contact signal processing unit includes optocoupler and analog selection switch, dry contact signal list
Member is opened by optocoupler and analog selection switch isolation.
Further, the processing unit includes subdata processing unit and master data processing unit, the subnumber
Processing unit is provided with several and connects one to one with data acquisition unit, all subdata processing unit connections
To master data processing unit, the subdata processing unit is to the pretreated letter of the signal conditioning unit of data acquisition unit
It is conveyed into master data processing unit after number carrying out the processing of analog-to-digital conversion, digital filtering, buffering and is analyzed and processed.Each data
The signal of acquisition unit first passes through corresponding subdata processing unit and is handled, and treatment effeciency is high, easy to maintain, subnumber
The processing for statistical analysis of master data processing unit is also pooled to according to the processing result of processing unit.
Further, the subdata processing unit includes sub-processor, sub memory, real-time clock, analog-digital converter
One, analog-digital converter two and sub- communication interface, after the lightning current signals processing unit, the pretreatment of processes temperature signal unit
Signal pass through analog-digital converter one respectively, analog-digital converter two is converted to and is sent into sub-processor after numerical signal, dry contact letter
Number pretreated signal of processing unit is sent directly into sub-processor, and the real-time clock is used to provide the time to sub-processor
Signal, the data after the completion of sub-processors handle give master data processing unit by sub- communications interface transmission.
Further, the master data processing unit carries out at operation to from the signal of multichannel subdata processing unit
Reason shows calculation process as a result, display unit graphic software platform stem grafting dotted state, the temperature of Surge Protector by display unit
And the information such as lightning current waveform, and calculation process result is sent to storage unit and is stored.
Compared with prior art, the utility model advantage is:
The Surge Protector of the monitoring multichannel of the monitoring system energy of lightning-protection system described in the utility model in real time, remotely
Working condition, replace traditional mode manually patrolled, reduce labor intensity, improve and the investigation of lightning-protection system failure is imitated
Rate can timely be found when Surge Protector breaks down, to ensure the timeliness of maintenance replacement, and can be according to monitoring
Data analyze the reason of Surge Protector damage, convenient for optimization, improve lightning-protection system, can effectively ensure that lightning-protection system can be always
With reliable protective effect, the operational reliability and safety of circuit system are ensured；
Same equipment multichannel simultaneously long distance online real-time monitor and store the waveform of lightning current, amplitude, the quantity of electric charge, than energy
The temperature of the data such as amount, polarity, time of origin, same equipment multichannel while long distance online real-time monitor Surge Protector, together
One equipment simultaneously long distance online real-time monitor different brands, different model Surge Protector operating status, and pass through communication
Monitoring data are real-time transmitted to microcomputer detecting system by unit, realize real-time networking monitoring.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the monitoring system of lightning-protection system；
Fig. 2 is the structural schematic diagram of data acquisition unit；
Fig. 3 is the structural schematic diagram of lightning current signals processing unit；
Fig. 4 is the structural schematic diagram of processes temperature signal unit；
Fig. 5 is the structural schematic diagram of dry contact signal processing unit；
Fig. 6 is the structural schematic diagram of subdata processing unit.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of monitoring system of lightning-protection system disclosed in the utility model embodiment, can remotely, monitor multichannel in real time
The working condition of Surge Protector monitors the stem grafting dotted state, temperature and lightning current situation of Surge Protector, timely finds
Whether Surge Protector damages, and the reason of can be damaged according to Analysis on monitoring data Surge Protector, convenient for optimization, improve it is anti-
Thunder system.
As shown in Figure 1, a kind of monitoring system of lightning-protection system, mainly includes data acquisition unit, processing unit and microcomputer
Monitoring system, data acquisition unit are provided with several, are separately positioned at different Surge Protectors and carry out to Surge Protector
Monitoring, the information that all data acquisition units monitor, which summarizes, to be transported to processing unit and is handled, and processing unit passes through communication
Analysis and processing result is transferred to Computerized monitor system by unit, long-range by Computerized monitor system, in real time to Surge Protector
Working condition be monitored, it is ensured that can timely find whether Surge Protector damages, thus ensure maintenance replacement it is timely
Property.
As shown in Fig. 2, in the present embodiment, data acquisition unit mainly includes signal conditioning unit, acquisition lightning current letter
Number current sensor, detect Surge Protector temperature temperature sensor and instruction Surge Protector damage whether stem grafting
Point signal element, the signal conditioning unit respectively acquire current sensor, temperature sensor and dry contact signal element
To information pre-processed after be transferred to processing unit and be analyzed and processed.
Signal conditioning unit therein includes corresponding with current sensor, temperature sensor and dry contact signal element respectively
Lightning current signals processing unit, processes temperature signal unit and the dry contact signal processing unit of connection, the lightning current letter
Number processing unit pre-processes the collected lightning current signals of the current sensor of multichannel, the processes temperature signal list
The temperature signal that member detects the temperature sensor of multichannel pre-processes, and the dry contact signal processing unit is to multichannel
The collected dry contact signal of dry contact signal element pre-processed.
In the present embodiment, Rogowski coil preferably can be used in current sensor, and lightning current letter is acquired using Rogowski coil
Number, measurement range is wide, and precision is high, and it is reliable and stable, as shown in figure 3, corresponding lightning current signals processing unit includes successively
Integrator, signal conditioning circuit, lightning current filter circuit and the level for connecting setting are lifted circuit, and the integrator receives electricity
The lightning current signals of flow sensor acquisition carry out integral reduction to it, obtain true surge current signal, the signal tune
It manages circuit and noise reduction amplitude modulation is carried out to meet the input voltage range that subsequent active device is handled to the output signal of integrator,
Filter circuit carries out analog filtering to signal, eliminates interference signal, lightning current signals have positive-negative polarity feature, due to subsequent conditioning circuit
Active device mostly uses single supply power supply mode, it is therefore desirable to level lifting processing is carried out to signal using level lifting circuit,
Translate the signals into positive voltage range；
As shown in figure 4, processes temperature signal unit includes temperature signal amplifying circuit and temperature signal filter circuit, it is described
Temperature signal amplifying circuit receive the temperature signal that detects of temperature sensor it amplified, temperature signal filter circuit
Filtering interference signals；
As shown in figure 5, dry contact signal processing unit includes optocoupler and analog selection switch, dry contact signal element passes through
Optocoupler is opened with analog selection switch isolation, switchs output digit signals by analog selection.
As shown in Figure 1, in order to improve the treatment effeciency to monitoring information, processing unit includes subdata processing unit and master
Data processing unit, the subdata processing unit are provided with several and connect one to one with data acquisition unit,
All subdata processing units are connected to master data processing unit, and the subdata processing unit is to data acquisition unit
Signal conditioning unit pretreated signal summarize after the processing of analog-to-digital conversion, digital filtering, buffering being conveyed into master data
Processing unit is analyzed and processed.
Subdata processing unit therein is as shown in Figure 6 comprising sub-processor, sub memory, real-time clock, modulus turn
Parallel operation one, analog-digital converter two and sub- communication interface, the lightning current signals processing unit, the conditioning of processes temperature signal unit
Signal afterwards passes through analog-digital converter one respectively, analog-digital converter two is sent into sub-processor, dry contact after being converted to numerical signal
Signal after signal processing unit conditioning is sent directly into sub-processor, and the real-time clock is used to provide the time to sub-processor
Signal, be used to indicate current time and record lightning current generation, the time terminated etc., sub memory is for storing subdata processing
The relevant parameter of unit, sub-processor for data are cached, operation, processing, detection conditioning after dry contact signal, obtain
The current time of real-time clock is taken, the relevant parameter of control sub memory storage subdata processing unit controls sub- communication interface
Communicated with master data processing unit, the data after the completion of sub-processors handle by sub- communications interface transmission to master data at
Unit is managed, the communication modes of sub- communication interface are RS485/RS422/CAN.
As shown in Figure 1, master data processing unit carries out calculation process to the signal from multichannel subdata processing unit, so
Analysis and processing result is transferred to by Computerized monitor system by communication unit afterwards, the communication mode of communication unit can be RS485/
RS422/CAN or TCP/IP realizes and monitors to the real-time networking of monitoring circuit, calculation process is shown by display unit as a result,
The monitoring informations such as display unit graphic software platform stem grafting dotted state, temperature value, lightning current waveform and lightning current parameter are controlled, and
Calculation process result is sent to storage unit to store.
Lightning-protection system is provided in railway communication equipment, lightning-protection system includes the wave that different location is largely arranged in
Surge protector, can temperature to the Surge Protector of different brands, different model, stem grafting using above-mentioned data acquisition unit
Point signal and lightning current situation are acquired, and realize waveform, amplitude, charge long-range, that monitor and store in real time lightning current
The data such as amount, specific energy, polarity, time of origin, the Surge Protector status information and lightning data of collection more comprehensively, to thunder and lightning
Monitoring it is more acurrate, reliable, it is ensured that can timely find damage Surge Protector, so as to timely carry out maintenance replacement,
It ensures that lightning-protection system is in reliable effective status always, ensures the effective protection to railway communication equipment, the later period is available
Big data is analyzed, to optimize existing lightning-protection system, provides more economic, more efficiently schemes of prevention against lightning, analysis SPD damage
Bad reason provides foundation for the equipment room renovation in later period.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (9)
1. a kind of monitoring system of lightning-protection system, which is characterized in that including data acquisition unit, processing unit and micro computer monitoring system
System is arranged in several circuit-switched data acquisition units at different Surge Protectors and is connected to processing unit, and the data acquire single
First temperature mainly including signal conditioning unit, the current sensor of acquisition lightning current signals, detection Surge Protector temperature passes
Dry contact signal element whether sensor and instruction Surge Protector damage, the signal conditioning unit is to current sense
Device, temperature sensor and dry contact signal element are respectively transferred to processing unit and are divided after collected information is pre-processed
Analysis and processing result is transferred to Computerized monitor system by communication unit by analysis processing, processing unit.
2. the monitoring system of lightning-protection system according to claim 1, which is characterized in that the signal conditioning unit includes
Lightning current signals processing unit, processes temperature signal unit and dry contact signal processing unit, the lightning current signals processing
Unit pre-processes the collected lightning current signals of current sensor, and the processes temperature signal unit is to temperature sensing
The temperature signal that device detects is pre-processed, and the dry contact signal processing unit is collected to dry contact signal element
Dry contact signal is pre-processed.
3. the monitoring system of lightning-protection system according to claim 2, which is characterized in that the current sensor uses Roche
Coil.
4. the monitoring system of lightning-protection system according to claim 3, which is characterized in that the lightning current signals processing unit
Integrator, signal conditioning circuit, lightning current filter circuit and level lifting circuit including being sequentially connected setting, the integral
The lightning current signals that device receives current sensor acquisition carry out integral reduction to it, and the signal conditioning circuit is to integrator
Output signal carries out noise reduction amplitude modulation.
5. the monitoring system of lightning-protection system according to claim 2, which is characterized in that the processes temperature signal unit
Including temperature signal amplifying circuit and temperature signal filter circuit, the temperature signal amplifying circuit receives temperature sensor inspection
The temperature signal measured is conveyed to temperature signal filter circuit by its filtering interference signals after amplifying to it.
6. the monitoring system of lightning-protection system according to claim 2, which is characterized in that the dry contact signal processing list
Member includes that optocoupler and analog selection switch, and dry contact signal element is opened by optocoupler and analog selection switch isolation.
7. the monitoring system of lightning-protection system according to claim 2, which is characterized in that the processing unit includes subnumber
According to processing unit and master data processing unit, the subdata processing unit is provided with several and and data acquisition unit
It connects one to one, all subdata processing units are connected to master data processing unit, the subdata processing unit pair
The pretreated signal of the signal conditioning unit of data acquisition unit carries out defeated after the processing of analog-to-digital conversion, digital filtering, buffering
Master data processing unit is sent into be analyzed and processed.
8. the monitoring system of lightning-protection system according to claim 7, which is characterized in that the subdata processing unit includes
Sub-processor, sub memory, real-time clock, analog-digital converter one, analog-digital converter two and sub- communication interface, the lightning current
Signal processing unit, the pretreated signal of processes temperature signal unit pass through analog-digital converter one, analog-digital converter two respectively
It is sent into sub-processor after being converted to numerical signal, the pretreated signal of dry contact signal processing unit is sent directly into subprocessing
Device, the real-time clock are used to provide time signal to sub-processor, and the data after the completion of sub-processors handle are logical by son
Letter interface is transferred to master data processing unit.
9. the monitoring system of lightning-protection system according to claim 7, which is characterized in that the master data processing unit pair
Signal from multichannel subdata processing unit carries out calculation process, shows calculation process by display unit as a result, and will
Calculation process result is sent to storage unit and is stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780862.0U CN209167432U (en) | 2018-10-31 | 2018-10-31 | A kind of monitoring system of lightning-protection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780862.0U CN209167432U (en) | 2018-10-31 | 2018-10-31 | A kind of monitoring system of lightning-protection system |
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| Publication Number | Publication Date |
|---|---|
| CN209167432U true CN209167432U (en) | 2019-07-26 |
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| CN201821780862.0U Active CN209167432U (en) | 2018-10-31 | 2018-10-31 | A kind of monitoring system of lightning-protection system |
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2018
- 2018-10-31 CN CN201821780862.0U patent/CN209167432U/en active Active
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