CN110007176A - A kind of remote monitoring device and method of electrical equipment working condition - Google Patents
A kind of remote monitoring device and method of electrical equipment working condition Download PDFInfo
- Publication number
- CN110007176A CN110007176A CN201910329204.2A CN201910329204A CN110007176A CN 110007176 A CN110007176 A CN 110007176A CN 201910329204 A CN201910329204 A CN 201910329204A CN 110007176 A CN110007176 A CN 110007176A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of remote monitoring devices of electrical equipment working condition, including power module, the power detection module connecting with power module, curent change monitoring modular, current transformer module, NB-IoT module and data analysis module.A kind of remote monitoring method of electrical equipment working condition is also disclosed, including current transformer module detects current data and is transferred to curent change monitoring modular；When curent change monitoring modular detects that current data has variation, data analysis module is waken up；Data analysis module obtains the current data of detection from current transformer module, reports threshold value when current variation value reaches, and wakes up NB-IoT module, sends data value to cloud service platform by NB-IoT module.The present invention uses suspend mode and wake-up mechanism, reduces the power consumption of device, is transmitted using low power consumption network, full battery is taken to power, convenient and efficient installation；Line installation is exempted from brokenly in non-contact type current acquisition.
Description
Technical field
The present invention relates to internet of things field, in particular to the remote monitoring device of a kind of electrical equipment working condition and
Method.
Background technique
With the development of economy and society, all kinds of electrical equipments are increasing, information intelligence is carried out for these equipment
Equipment working state management have become the focus that related functional department pays high attention to, especially (such as: road to urban operating mechanism
Lamp) etc. the remote supervisory of unattended electrical equipment be even more administrative department's pain spot problem urgently to be solved.
At present to the management of unattended electrical equipment (such as: street lamp), what is substantially taken is that manual inspection mode carries out
Management, this mode there are low efficiency, at high cost, the level of IT application is low, capability of fast response is poor the disadvantages of, do not adapt to information
Change management to require.
In recent years, there are also the monitoring means appearance to unattended electrical equipment, but are substantially all and to supply equipment
Electric line is dismantled, to carry out the monitoring of equipment operating current and take electricity for monitoring device.The greatest problem of this mode is drop
The low reliability of original route, while there is also difficulty of construction and efficiency for the installation of monitoring device.And monitoring device is sent out
When raw failure, will result directly in electrical equipment be can not work normally.
Electrical equipment status information capture is carried out based on Current Mutual Inductance in view of this, developing one kind, utilizes low-power consumption wide area
Net carries out data upload, while the electrical equipment monitoring device to equipment power supply line without forcible entry, can effectively solve the above problems.
Summary of the invention
The present invention is directed to design one kind to supervise in real time for unattended electrical equipment working condition (current value) progress multichannel
Survey, the forcible entry of unpowered route, carried out using low-power consumption wide area network data uploads, without Alternating Current Power Supply, Fast Installation can be achieved
Electrical equipment monitoring device.
The system software platform that the present invention is attached can be handled the electrical equipment status data of upload, be formed various
Intelligent Application and all kinds of emergency disposal prediction schemes of formation.
The present invention is changeable to be made as backstage attended mode to the survey monitor of unattended electrical equipment, and work effect is greatly improved
Rate and establish rapid responding mechanis.
A kind of remote monitoring device of electrical equipment working condition, it is characterised in that: including power module, respectively with it is described
Power detection module, curent change monitoring modular, current transformer module and the NB-IoT module of power module connection, it is described
Data analysis module is connected between NB-IoT module and current transformer module, in which:
The power supply monitoring module is used to detect the power conditions of power module, and is transmitted to data analysis module；
The current transformer module is used to acquire the current data of power supply line and is transmitted to curent change monitoring modular；
When the curent change monitoring modular is used to monitor the current data variation of current transformer module input, actively
Wake up the data analysis module；
The data analysis module carries out multiple repairing weld point for actively reading current transformer data after being waken up
Analysis, reports threshold values then to abandon reporting automatically when the current change quantity of monitoring fails to reach, if the current change quantity of monitoring reaches
Threshold values is reported then to wake up NB-IoT module；
The NB-IoT module is used to data reporting to cloud service platform.
Further, the NB-IoT module is only called out when needing the current value for uploading acquisition by the data analysis module
Awake work, other time is in a dormant state.
Further, the data analysis module reports threshold values to be adjusted by adjustable resistance.
Further, current intelligent parser, the current intelligent parser are used in the data analysis module
Including by MCU internal reference voltage realize AD conversion algorithm, fitting linear equation reduce mutual inductor sampling error algorithm,
10 samplings judge electric current steady-state algorithm and the repeated data filter algorithm with previous transmission value.
A kind of remote monitoring method of electrical equipment working condition, comprising:
Step S100: the current transformer module detection current data being mounted in power supply line, and it is transferred to electric current change
Change monitoring modular；
Step S200: when curent change monitoring modular detects that the current data of input has variation, data analysis is waken up
Module；
Step S300: data analysis module obtains the current data of detection from current transformer module, judges curent change
Whether value, which reaches, reports threshold value, if not up to, abandoning this and reporting, otherwise, then NB-IoT module is waken up, by NB-IoT mould
Block sends data value cloud service platform.
Compared with prior art, the present invention having following technical advantage and beneficial implementation result:
(1) data analysis module in the present invention uses preposition parser, by multiple repairing weld and threshold values to score
Analysis, changing value reach after stable state just with the electric current that reports threshold values comparison to decide whether to report variation, report threshold values adjustable.
(2) low power dissipation design: the present apparatus takes full battery to power, convenient and efficient installation.Using suspend mode and wake-up mechanism, only
It starts to work after being waken up when signal is generated by wake-up module, the device most of the time in a dormant state, greatly reduces
The power consumption of device, to realize built-in compared with small-capacity cells power supply.
(3) current transformer non-contact type current acquires, and exempts from brokenly line installation, can be directly clamped among on monitored route, pass through
The current data of acquisition is transferred to curent change monitoring modular by the mode of mutual inductance.
(4) power supply monitoring designs: can report power supply characteristic data automatically, especially make cloud in the case where battery powers environment
The power conditions of device can be monitored in real time in server.
(5) wireless transport module double antenna designs: this two antennas for designing achievable same impedance are simultaneously operable,
It can also work independently, eliminate the problem of a variety of antenna switchings use, specifically show as can be used simultaneously in the present apparatus interior
Antenna and external antenna are set, built-in antenna can also be only used.
The design of (6) 3 road current monitorings: achievable 3 road electric currents monitor simultaneously as needed, can be real by cloud system platform
Now the multichannel data of same monitoring object is analyzed.
When using 1 road circuit monitoring, operating current monitoring can be carried out to electrical equipment, judge whether electrical equipment is located with this
In normal operating conditions；
It when using 2 road current monitoring, not only can determine whether electrical equipment is in normal operating conditions, while can also monitor
Whether the current supply circuit of the electrical equipment leaks electricity；
When using 3 road current monitoring, it can determine whether electrical equipment is in the confession of normal operating conditions He the electrical equipment
Whether electrical circuit leaks electricity.Can also current monitoring be carried out to mains supply line simultaneously, the current monitoring data uploading system is soft
After part platform, it may also be used for carry out the power analysis of mains supply line and carry out detection of electrical leakage judgement.
(7) Intelligent current parser designs: current sample is directly sampled by AD, and uses internal comparison reference voltage
Current value conversion is carried out, its true current value is obtained according to experimental result linear equation calculation, can accomplish that error exists
10mA is hereinafter, its single current value digital simulation function is following (setting X as sampled current value, F (X) is actual current value):
F (X)=X*4.32+0.06
It herein on basis, is sampled through 10 times, 5 seconds each current value sampling intervals, the value sampled every time and previous sub-value
It comparing, this sampling, which is less than 5mA with last time sampling difference, to be considered reaching stable state, the current value of present sample is returned,
Current value under the lower state is compared with the preceding current value once uploaded onto the server again, and difference is greater than certain value
(value is that external potentiometer is adjusted) is considered as curent change, needs to upload, reduces electric current by the above parser
Error between the current value of mutual inductor sample and true current value, while reducing because of current-jump bring hash,
It reduces because the data that current-jump generates repeatedly frequently upload, saves resource consumption to the greatest extent, it is low with the realization of the present apparatus
Power dissipation design purpose.
(8) in addition to above-mentioned technical characterstic, apparatus of the present invention also have good scalability, can be according to application scenarios not
Together, expand the current transformer acquisition input that access is greater than 3 tunnels.
Detailed description of the invention
Fig. 1 is system block diagram of the invention；
Fig. 2 is that the present invention is used for 3 tunnel current detecting scheme of installation；
Fig. 3 is that the present invention is used for detection of electrical leakage scheme of installation；
Fig. 4 is the present invention for leaking electricity and current detecting scheme of installation；
Fig. 5 is current transformer logical circuitry of the invention；
Fig. 6 is the building-block of logic that data of the invention are transmitted.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, but embodiments of the present invention include but unlimited
In this.
Embodiment 1:
In conjunction with shown in attached drawing 1, a kind of remote monitoring device of electrical equipment working condition, including power module, respectively with
Power detection module, curent change monitoring modular, current transformer module and the NB-IoT module of the power module connection, institute
It states and is connected with data analysis module between NB-IoT module and current transformer module, in which:
Power module is used to power to modules, takes full battery to power, convenient and efficient installation.
The power supply monitoring module is used to detect the power conditions of power module, and is transmitted to data analysis module；It can be certainly
It is dynamic to report power supply characteristic data, the power supply for especially making cloud server that device can be monitored in real time in the case where battery powers environment
Situation；
The current transformer module is used to acquire the current data of power supply line and is transmitted to curent change monitoring modular；
The acquisition of current transformer non-contact type current is exempted from brokenly line installation, can be directly clamped among on monitored route, will by way of mutual inductance
The current data of acquisition is transferred to curent change monitoring modular；
When the curent change monitoring modular is used to monitor the current data variation of current transformer module input, actively
Wake up the data analysis module；
The data analysis module for actively reading current transformer data after being waken up, and carry out multiple repairing weld with it is upper
Report threshold comparison analysis, changing value reaches after stable state just with the electric current that reports threshold values comparison to decide whether to report variation, works as monitoring
Current change quantity fail to reach threshold values reported then to abandon reporting automatically, if the current change quantity of monitoring reaches and reports threshold values
Wake up NB-IoT module；It using suspend mode and wake-up mechanism, starts to work, fills after only being waken up when signal is generated by wake-up module
It sets the most of the time in a dormant state, greatly reduces the power consumption of device, to realize built-in compared with small-capacity cells power supply；
Designed in data analysis module using Intelligent current parser: current sample is directly sampled by AD, and is used
Internal comparison reference voltage carries out current value conversion, obtains its true electric current according to experimental result linear equation calculation
Value, can accomplish error in 10mA hereinafter, its single current value digital simulation function (sets X as follows as sampled current value, F (X) is
Actual current value):
F (X)=X*4.32+0.06
It herein on basis, is sampled through 10 times, 5 seconds each current value sampling intervals, the value sampled every time and previous sub-value
It comparing, this sampling, which is less than 5mA with last time sampling difference, to be considered reaching stable state, the current value of present sample is returned,
Current value under the lower state is compared with the preceding current value once uploaded onto the server again, and difference is greater than certain value
(value is that external potentiometer is adjusted) is considered as curent change, needs to upload, reduces electric current by the above parser
Error between the current value of mutual inductor sample and true current value, while reducing because of current-jump bring hash,
It reduces because the data that current-jump generates repeatedly frequently upload, saves resource consumption to the greatest extent, it is low with the realization of the present apparatus
Power dissipation design purpose；
The NB-IoT module is used to report to data cloud service platform, the design of NB-IoT module double antenna, identical resistance
Two anti-antennas are simultaneously operable, and can also be worked independently, and the problem of a variety of antenna switchings use are eliminated, specifically in this dress
It sets and shows as can be used simultaneously built-in antenna and external antenna, built-in antenna can also be only used.
Embodiment 2:
On the basis of embodiment 1, in conjunction with shown in attached drawing 2, a kind of remote monitoring device of electrical equipment working condition by
It powers in using internal battery, and uses double antenna and design, installation is simple and fast, in the point that needs monitor according to need
Determine whether the present apparatus needs external antenna.The matched current transformer one end of the present apparatus is installed on to the fire of monitored cable
On line or zero curve, the current transformer connector of the other end is connected with the current transformer interface of the present apparatus, can be realized electric all the way
Stream acquisition in real time.To judge the working condition of electrical equipment, real-time monitoring information is provided for administrative department, quickly to be located
It sets.What attached drawing 2 was stated is the working state monitoring that the present invention carries out the road 1-3 electrical equipment, can be as needed in practical application
It is expanded, multiple electrical equipments is monitored.
Achievable 3 road electric currents monitor simultaneously as needed, can realize by cloud system platform to same monitoring object
Multichannel data analysis:
When using 1 road circuit monitoring, operating current monitoring can be carried out to electrical equipment, judge whether electrical equipment is located with this
In normal operating conditions；
It when using 2 road current monitoring, not only can determine whether electrical equipment is in normal operating conditions, while can also monitor
Whether the current supply circuit of the electrical equipment leaks electricity；
When using 3 road current monitoring, it can determine whether electrical equipment is in the confession of normal operating conditions He the electrical equipment
Whether electrical circuit leaks electricity.Can also current monitoring be carried out to mains supply line simultaneously, the current monitoring data uploading system is soft
After part platform, it may also be used for carry out the power analysis of mains supply line and carry out detection of electrical leakage judgement.
Apparatus of the present invention also have good scalability, can expand the electricity that access is greater than 3 tunnels according to the difference of application scenarios
Current transformer acquisition input.
Embodiment 3:
On the basis of embodiment 1, in conjunction with shown in attached drawing 3, the matched 2 current transformer one end of the present apparatus are pacified respectively
On firewire and zero curve loaded on monitored cable, the current transformer connector and the current transformer interface phase of the present apparatus of the other end
Even, electric current all the way can be realized and acquire in real time, to judge the working condition of electrical equipment, while the confession of the electrical equipment can be monitored
Whether electrical circuit leaks electricity.Real-time monitoring information is provided for administrative department, quickly to be disposed.
Embodiment 4:
On the basis of embodiment 3, in conjunction with shown in attached drawing 4, by 2 electricity in matched 3 current transformers of the present apparatus
Current transformer one end is respectively arranged on the firewire and zero curve of monitored cable, the current transformer connector and the present apparatus of the other end
Current transformer interface be connected, the 3rd current transformer is installed on mains supply line firewire.Electrical equipment work can be realized
Make status monitoring, the electric leakage monitoring of power supply for electrical equipment circuit, main current supply circuit power analysis and carry out the leakage of main current supply circuit
Electro-detection judgement.Real-time monitoring information is provided for administrative department, quickly to be disposed.
Embodiment 5:
In conjunction with shown in attached drawing 1, Fig. 5 and Fig. 6, a kind of remote monitoring method of electrical equipment working condition, comprising:
Step S100: the current transformer module detection current data being mounted in power supply line, and it is transferred to electric current change
Change monitoring modular；
Step S200: when curent change monitoring modular detects that the current data after the rectification of input has variation, pass through
Wake-up circuit wakes up the MCU in data analysis module and wakes up；
Step S300: data analysis module is obtained from current transformer module through over commutation, amplified current data, and
After overcurrent uses, judges whether current variation value reaches and report threshold value, if not up to, abandoning this and reporting, otherwise,
NB-IoT module is then waken up, data value cloud service platform is sent by NB-IoT module.
The system software platform energy automatic adaptation that the present invention is attached is applicable in above-mentioned implementation use-case and other application scene
It is disposed in the large area of apparatus of the present invention.System software platform specifically includes that equipment management, current monitoring, account management, permission
The functional modules such as management, data sheet.
Although reference be made herein to invention has been described for explanatory implementation use-case of the invention, and above-mentioned implementation use-case is only
The preferable embodiment of the present invention, embodiments of the present invention are not limited by above-mentioned implementation use-case.It will be appreciated that this field
Technical staff can be designed that many other modification and implementations, these modifications and implementations will fall in the application and disclose
Scope and spirit within.
Claims (5)
1. a kind of remote monitoring device of electrical equipment working condition, it is characterised in that: including power module, respectively with the electricity
Power detection module, curent change monitoring modular, current transformer module and the NB-IoT module of source module connection, the NB-
Data analysis module is connected between IoT module and current transformer module, in which:
The power supply monitoring module is used to detect the power conditions of power module, and is transmitted to data analysis module；
The current transformer module is used to acquire the current data of power supply line and is transmitted to curent change monitoring modular；
When the curent change monitoring modular is used to monitor the current data variation of current transformer module input, actively wake up
The data analysis module；
The data analysis module carries out multiple repairing weld analysis for actively reading current transformer data after being waken up, when
The current change quantity of monitoring, which fails to reach, reports threshold values then to abandon reporting automatically, if the current change quantity of monitoring, which reaches, reports valve
Value then wakes up NB-IoT module；
The NB-IoT module is used to data reporting to cloud service platform.
2. a kind of remote monitoring device of electrical equipment working condition as described in claim 1, it is characterised in that: the NB-
IoT module only wakes up work by the data analysis module when needing to upload the current value of acquisition, and other time is in suspend mode
State.
3. a kind of remote monitoring device of electrical equipment working condition as described in claim 1, it is characterised in that: the data
Analysis module reports threshold values to be adjusted by adjustable resistance.
4. a kind of remote monitoring device of electrical equipment working condition as described in claim 1, it is characterised in that: the data
Current intelligent parser is used in analysis module, the current intelligent parser includes real by MCU internal reference voltage
Existing AD conversion algorithm, the sampling error algorithm of the linear equation reduction mutual inductor of fitting, 10 samplings judge electric current steady-state algorithm
With the repeated data filter algorithm with previous transmission value.
5. a kind of remote monitoring method of electrical equipment working condition characterized by comprising
Step S100: the current transformer module detection current data being mounted in power supply line, and it is transferred to curent change prison
Survey module；
Step S200: when curent change monitoring modular detects that the current data of input has variation, data analysis module is waken up；
Step S300: data analysis module obtains the current data of detection from current transformer module, judges that current variation value is
It is no reach report threshold value, if not up to, abandon this and report, otherwise, then wake up NB-IoT module, sent out by NB-IoT module
Send data to cloud service platform.
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| CN201910329204.2A CN110007176A (en) | 2019-04-23 | 2019-04-23 | A kind of remote monitoring device and method of electrical equipment working condition |
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| CN201910329204.2A CN110007176A (en) | 2019-04-23 | 2019-04-23 | A kind of remote monitoring device and method of electrical equipment working condition |
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Family
ID=67173649
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| CN112751309A (en) * | 2020-12-30 | 2021-05-04 | 杭州拓深科技有限公司 | Power utilization equipment protection system and protection method based on AIoT and current fingerprint |
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Effective date of registration: 20210825 Address after: 610000 No. 2, unit 4, No. 28 Yulin Heng street, Wuhou District, Chengdu, Sichuan Applicant after: Peng Ming Address before: Room 899, 8 / F, building 1, 1388, middle section of Tianfu Avenue, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610000 Applicant before: Chengdu Deductive Code Technology Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190712 |