CN112946354A - Transmission line grounding electrode centralized wired current synchronous acquisition device, operation method and computer storage medium - Google Patents
Transmission line grounding electrode centralized wired current synchronous acquisition device, operation method and computer storage medium Download PDFInfo
- Publication number
- CN112946354A CN112946354A CN202110197174.1A CN202110197174A CN112946354A CN 112946354 A CN112946354 A CN 112946354A CN 202110197174 A CN202110197174 A CN 202110197174A CN 112946354 A CN112946354 A CN 112946354A
- Authority
- CN
- China
- Prior art keywords
- module
- acquisition
- current
- mcu
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 33
- 238000007726 management method Methods 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000013500 data storage Methods 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 7
- 238000004590 computer program Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a centralized wired current synchronous acquisition device for a grounding electrode of a power transmission line, an operation method and a computer storage medium. The device comprises a main control unit and an acquisition unit; the main control unit comprises a main control MCU and a synchronous acquisition control module which is electrically connected with the main control MCU and is used for accessing the analog signal sensor; the acquisition unit is provided with a plurality of acquisition modules, each acquisition module is independently provided with a slave MCU, an ADC module and a current sensor for acquiring grounding current of a grounding electrode feeder line, which are sequentially connected, and each acquisition module is mutually independent to acquire current and store the current in the local of the slave MCU; and the slave MCU of each acquisition module is in wired serial port communication connection with the master control MCU through the synchronous acquisition control module, and the external interrupt pins of the slave MCU of each acquisition module are respectively connected to the master control MCU. The invention is used for synchronously acquiring the wired feed current of the centralized grounding electrode of the power transmission line.
Description
Technical Field
The invention relates to the field of on-line monitoring of power transmission lines, in particular to a centralized wired current synchronous acquisition device for a power transmission line grounding electrode, an operation method and a computer storage medium.
Background
With the rapid development of national economy, the power requirements of various regions are continuously increased, the power grid construction in China is unprecedented, and the high-voltage direct-current transmission project is developed very rapidly. The grounding electrode of the high-voltage direct-current transmission line plays an extremely important role in the operation of a direct-current transmission system: one is to clamp the neutral point and provide a dc current path. For example, a monopole earth return circuit and a double-pole two-end grounding directly transmit electric power for the system for a long time, so that the running reliability of the system is improved; and the neutral point potential is clamped, so that the damage to equipment caused by unbalance of the voltages of the two poles to the ground, such as a unipolar metal loop, ungrounded two ends of a bipolar, and the like, is avoided. Because powerful direct current is injected into the ground through the grounding electrode, the ground potential is greatly increased, new problems of step voltage, soil heating, electrode electric corrosion and the like occur, and the normal operation of a direct current system is damaged, so that the monitoring of the grounding electrode system is very important, and an important basis is provided for the operation, maintenance, detection and management of the grounding electrode.
At present, the operation parameter acquisition and the like of the direct current grounding electrode are basically completed by manual measurement, the automation degree is very low, the synchronism of the feed current acquisition is extremely poor, and the total current of the grounding electrode is not always kept unchanged, so that errors exist in the feed shunt coefficient calculation, and the operation condition of the whole grounding electrode system cannot be well fed back. However, the direct current converter station is used as a key device in the direct current transmission system, and the operation of the device is directly related to the stability of the whole high-voltage direct current transmission system, so that the monitoring of the operation condition of the earth electrode can be well completed by collecting the earth electrode feed earth current and the step voltage data, collecting the water level and temperature of the detection well, the device temperature of the central area, the soil temperature and humidity, the video and the like, and carrying out real-time online monitoring. And the operation condition of the whole grounding electrode system can be quickly fed back by the feed current and the shunt coefficient of the feed cable, so that the key point is to ensure the synchronism of the feed current measurement.
Disclosure of Invention
The invention aims to synchronously acquire the wired feed current of the centralized grounding electrode of the power transmission line.
In order to achieve the object, according to an aspect of the present invention, there is provided a centralized wired current synchronous acquisition device for a ground electrode of a power transmission line, comprising a main control unit and an acquisition unit; the main control unit comprises a main control MCU and a synchronous acquisition control module which is electrically connected with the main control MCU and is used for accessing the analog signal sensor; the acquisition unit is provided with a plurality of acquisition modules, each acquisition module is independently provided with a slave MCU, an ADC module and a current sensor for acquiring grounding current of a grounding electrode feeder line, which are sequentially connected, and each acquisition module is mutually independent to acquire current and store the current in the local of the slave MCU; and the slave MCU of each acquisition module is in wired serial port communication connection with the master control MCU through the synchronous acquisition control module, and the external interrupt pins of the slave MCU of each acquisition module are respectively connected to the master control MCU.
Furthermore, the main control unit comprises a wireless synchronous communication module electrically connected with the main control MCU, the acquisition unit is provided with a plurality of current acquisition modules capable of realizing wireless communication and distributed in position, and each current acquisition module is respectively communicated with the wireless synchronous communication module.
Further, the main control unit comprises an RS485 data interface module, a switching value acquisition module and an Ethernet module which are respectively and electrically connected with the main control MCU, the acquisition unit is provided with an ultrasonic meteorological sensor to be connected with the RS485 data interface module, a tipping bucket type rainfall sensor to be connected with the switching value acquisition module, and a digital camera to be connected with the access Ethernet module.
Furthermore, the main control unit comprises a full-standard network wireless communication module for remote communication with the system background through a mobile network.
Further, the full-standard network wireless communication module is a full-network 4G wireless communication module.
Furthermore, the main control unit comprises a data storage module electrically connected with the main control MCU.
The power supply device further comprises a power supply unit which is provided with a battery charging and discharging control module, a power taking module and an energy storage module which are respectively and electrically connected with the battery charging and discharging control module, and the main control unit is provided with a power supply management module which is used for being controlled by the distribution and supply of a power supply in the main control MCU management device and is electrically connected with the battery charging and discharging management module.
Furthermore, the main control unit comprises a power-off protection clock module for providing a clock for the system, and the power-off protection clock module is electrically connected with the main control MCU.
Also provided is an operating method of the device, comprising the following steps performed in sequence:
s1, when the feeding current data is requested to be acquired, a master control MCM broadcasts and sends an acquisition instruction to each acquisition module through a serial port bus;
s2, each acquisition module starts AD acquisition of feeder current data when receiving an acquisition instruction;
s3, when the master control MCU synchronously sends an interrupt signal to the external interrupt pin of each slave MCU in an interrupt triggering mode, each channel of acquisition module is triggered by interrupt to stop acquiring and storing the current acquired data in the local slave MCU;
and S4, after acquiring the current acquisition data of each path of acquisition module, the main control MCU performs analysis, processing and calculation and uploads the current acquisition data to the background.
Further, when there is no need for collection, the master control MCU controls each slave MCU to turn off the power supply to enter a power saving mode, and step S1 further executes an operation in which the master control MCM turns on the power supply of each collection module.
Further, when the timing sampling time point arrives, step S1 is executed.
A computer readable storage medium is also provided, wherein the computer readable storage medium stores one or more programs which, when executed by a processor, implement the above-described method.
The technology of the invention has the following characteristics:
the feeder current centralized synchronous acquisition method is provided, synchronous acquisition of all the feeder currents is realized in a wired connection mode, the accuracy of the shunt coefficient of the feeder currents is improved, the operation condition of the whole direct current grounding electrode system is monitored more accurately, an important basis is provided for operation, maintenance, detection and management of the grounding electrode, and the operation reliability of the line is effectively improved.
The above description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the description and other objects, features, and advantages of the present invention more comprehensible.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like elements throughout the drawings.
In the drawings:
FIG. 1 shows a system block diagram of an integrated on-line monitoring system for a grounding electrode of the present invention;
FIG. 2 illustrates a communication diagram of a centralized wired synchronous acquisition of the present invention;
FIG. 3 illustrates a flow diagram of the centralized wired synchronous acquisition of the present invention;
FIG. 4 shows a schematic structural diagram of an electronic device of the present invention;
fig. 5 shows a schematic structural diagram of a computer-readable storage medium of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, the overall integrated on-line monitoring system for the grounding electrode is divided into a main control unit 1, a power supply unit 2 and an acquisition unit 3.
The main control unit 1 is electrically connected with the power supply unit 2, and the acquisition unit 3 is electrically connected with the main control unit 1. The power supply unit 2 provides a power supply for the operation of the whole system, and the main control unit 1 controls the functions of the whole system, manages the power supply of the acquisition unit 3 and realizes the external sensor and image video acquisition of data acquisition.
The main control unit 1 comprises a central processing module 11, a power-off protection clock module 15, a data storage module 16, a debugging module 17, a power management module 12, an upper computer full-network-wide 4G wireless communication module 13, a lower computer communication module 14 and the like. The power-off protection clock module 15, the data storage module 16, the debugging module 17, the power management module 12, the upper computer full-network-communication 4G wireless communication module 13 (i.e., a full-standard network wireless communication module), and the lower computer communication module 14 are respectively connected with the central processing module 11 in an embedded manner.
The central processing module 11 includes a master MCU111 and a hardware watchdog circuit 112. The main control MCU111 is used for realizing the functions of the whole device, including data acquisition, processing, uploading to a background, power control of each sensor and the image video module, and the like. The hardware watchdog circuit 112 is not controlled by the main control MCU111 when operating, and when the program of the main control MCU111 is abnormal, the hardware watchdog circuit 112 outputs a reset level to the reset pin of the main control MCU111 for resetting.
The power-off protection clock module 15 is electrically connected with the main control MCU111, provides a clock for the system, can protect the clock to continue to run when the equipment is powered off or restarted, and ensures the accuracy of the system clock when the equipment resumes running.
The data storage module 16 is electrically connected to the main control MCU111, and is mainly used for storing data processed by the main control MCU111 and ensuring data integrity. When the wireless network communication is disconnected with the background server, the data to be uploaded can be stored, and the data can be continuously uploaded after the tape network is recovered, so that the integrity of the data is ensured.
The function of the debugging module 17 includes debugging the device, configuring parameters, downloading programs, and the like.
The power management module 12 of the main control unit 1 is electrically connected with the battery charging and discharging management module of the power supply unit 2. The power management module 12 is used for managing the distribution and supply of power inside the device, and is controlled by the main control MCU 111.
The upper computer whole network communication 4G wireless communication module 13 supports a mobile, Unicom and telecom operator 4G/3G/2G whole system network. The wireless remote monitoring system has the function that the sensor data, the image video data and the like which are acquired, analyzed and processed can be transmitted to a system background in a wireless mode, so that wireless remote monitoring is realized.
The lower computer module 14 comprises a synchronous acquisition control module 141, an RS485 data interface module 142, a wireless synchronous communication module 143, a switching value acquisition module 144, and an ethernet module 145. The module 14 is used for connecting an external data sensor, wherein the synchronous acquisition control module 141 can be used for connecting an analog signal sensor; the RS485 data interface module 142 is used for accessing an RS485 digital sensor, such as an ultrasonic meteorological sensor; the switching value acquisition module 144 is used to access a switching value type sensor, such as a dump bucket rainfall sensor; the wireless synchronous communication module 143 is used for accessing sensors which are far away and are not suitable for accessing in a wired manner, such as distributed grounding electrode grounding cable current acquisition sensors with scattered sensor installation positions, stepping voltage acquisition sensors, and the like; the ethernet communication module 145 is used for access of a digital camera, etc.
The power supply unit 2 is a power supply unit of the whole device and is composed of a battery charging and discharging control module 21, a power taking module 22 and an energy storage module 23. The battery charging and discharging control module 21 is electrically connected with the power taking module 22 and the energy storage module 23 respectively. The electricity taking module 22 can select a solar battery assembly or wind energy, ground wire induction energy taking and the like according to the field environment, and the energy storage module 23 can select a lead-acid storage battery, a lithium battery and the like. The battery charge-discharge controller module 21 has functions of automatic float charge energy, overvoltage protection, undervoltage protection, overcurrent protection, temperature compensation and the like.
The acquisition unit 3 can be accessed with different types of sensors according to the actual monitoring needs. When the grounding current of the centralized feed cable needs to be measured, the synchronous acquisition of the grounding current of the feed line can be realized by accessing the wired current sensor to the synchronous acquisition control module; when the current of the distributed feeder cable needs to be measured, a distributed wireless synchronous measurement current sensor can be selected, the synchronous acquisition of the ground current of the feeder line is realized, and data is uploaded to a host through a short-distance wireless communication module; the RS485 data interface module can be connected with an RS485 ultrasonic meteorological digital sensor; the switching value acquisition module is connected to the tipping bucket type rainfall sensor; an ethernet module or the like is connected to a digital camera or the like.
The invention provides a centralized wired current synchronous acquisition method, which is used for solving the problems that grounding electrodes are centralized in grounding cable distribution and feeding current is synchronously acquired.
Generally, when a wired manner is used for testing the grounding current of a grounding electrode feeder line, grounding electrodes distributed on a feeding and grounding cable are often concentrated, and when wired line acquisition is performed, the grounding electrodes are sequentially acquired in the manner that a main control MCU sends acquisition instructions to a serial port of an acquisition module, the method is only a rough synchronization manner, and has certain calculation accuracy and errors, for this reason, as shown in fig. 2 to fig. 3, the solution provided by the invention is as follows:
(1) the system is characterized in that multiple paths of acquisition modules are arranged, each path of acquisition module is independently provided with a slave MCU, an ADC module and a current sensor, the slave MCU, the ADC module and the current sensor are sequentially connected and are used for acquiring the grounding current of a grounding electrode feeder line, the acquisition modules are mutually and independently used for acquiring the current and storing the current data locally in the slave MCU, the slave MCU of each path of acquisition module is in wired serial port communication connection with the master MCU through a synchronous acquisition control module, and external interrupt pins of the slave MCU of each path of acquisition module are respectively connected to the master MCU.
(2) The master control MCU controls the power switch and the acquisition process of each path of acquisition module at the same time, and controls each path of slave MCU to turn off the power supply to enter a power saving mode when acquisition is not needed.
(3) When the timing sampling time point arrives or the feeding current data is requested to be acquired, the master control MCM opens the power supply of each acquisition module, and broadcasts and sends an acquisition instruction to each acquisition module through the serial port bus.
(4) And each path of acquisition module starts to carry out high-speed AD acquisition and circularly stores data locally in the slave MCU for backtracking.
(5) When the master control MCU synchronously sends level interrupt signals to the external interrupt pins of each slave MCU through the IO pin in an interrupt triggering mode, each path of acquisition module is triggered by interrupt to stop acquiring and storing the current acquired data locally in the slave MCU. Compared with the mode of stopping serial port broadcasting, the mode of interruption has the advantages that the response is faster, the synchronism is higher, the receiving and analyzing, the process switching and the like of each slave MCU are required, uncertain time delay can be caused, the synchronism is influenced, and errors are caused.
(6) And the main control MCU acquires the feeder current data of each acquisition module, performs analysis processing calculation and uploads the data to the background, and then closes the power supply of each acquisition module.
The direct current grounding electrode comprehensive on-line monitoring device can simultaneously collect various data (including wireless sensor data, wired sensor data and the like), video and images, comprehensively and uniformly process all collected data, the data of short-distance sensors and the like are connected in a wired mode, and the data of sensors far away are collected in a wireless mode to monitor the monitored data of different mounting points.
The device communication module is configured with a 4G full-network communication module. The device can upload the processed data to the server background through the mobile network.
In addition, the centralized synchronous acquisition device can realize the distribution characteristics of different grounding electrode feed cables, synchronously acquire the feed current and calculate the shunt coefficient of the feed cables, improve the data measurement accuracy and the working efficiency of the grounding electrode measurement, has strong universality, convenient installation, simple method, accurate measurement and stable performance, can eliminate the test error of the shunt coefficient of the grounding electrode feed cables, and has the characteristics of safety, simplicity, convenience and high efficiency.
The centralized synchronous acquisition device is compatible with a feeder current centralized synchronous acquisition scheme and a feeder current distributed synchronous acquisition scheme, has wide application range and strong universality, is convenient for large-scale deployment of users in the comprehensive monitoring requirements of different grounding electrodes, has the characteristics of safety, simplicity, convenience and high efficiency, and indirectly improves the operation reliability of the power transmission line.
The centralized synchronous acquisition aims at the characteristics that the distribution of the grounding electrode grounding feed cables is centralized and the distance of each feed cable is short, the current sensors are connected into the cables in a wired connection mode, the synchronous acquisition of feed current data is realized by a wired synchronous measurement method, and the maximum 128 paths of the feed current sensors can be flexibly configured in the whole device.
The main control MCU analyzes, processes and calculates the measurement of different sensors and the acquired data of image video data, and transmits the data to the background server in a wireless communication mode to realize the remote monitoring of the direct grounding electrode system.
By adopting the power supply load grading management method, the power supply can be switched on and off according to the task condition, and the energy-saving effect is achieved.
It should be noted that:
the method used in this embodiment can be converted into program steps and apparatuses that can be stored in a computer storage medium, and the program steps and apparatuses are implemented by means of calling and executing by a controller, wherein the apparatuses should be understood as functional modules implemented by a computer program.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose devices may be used with the teachings herein. The required structure for constructing such a device will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
For example, fig. 4 shows a schematic structural diagram of an electronic device according to an embodiment of the invention. The electronic device conventionally comprises a processor 31 and a memory 32 arranged to store computer-executable instructions (program code). The memory 32 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read only memory), an EPROM, a hard disk, or a ROM. The memory 32 has a storage space 33 storing program code 34 for performing any of the method steps in the embodiments. For example, the storage space 33 for the program code may comprise respective program codes 34 for implementing respective steps in the above method. The program code can be read from or written to one or more computer program products. These computer program products comprise a program code carrier such as a hard disk, a Compact Disc (CD), a memory card or a floppy disk. Such a computer program product is typically a computer readable storage medium such as described in fig. 5. The computer readable storage medium may have memory segments, memory spaces, etc. arranged similarly to the memory 32 in the electronic device of fig. 4. The program code may be compressed, for example, in a suitable form. In general, the memory unit stores program code 41 for performing the steps of the method according to the invention, i.e. program code readable by a processor such as 31, which when run by an electronic device causes the electronic device to perform the individual steps of the method described above.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (10)
1. Centralized wired electric current synchronous acquisition device of transmission line earthing pole, its characterized in that:
comprises a main control unit and an acquisition unit;
the main control unit comprises a main control MCU and a synchronous acquisition control module which is electrically connected with the main control MCU and is used for accessing the analog signal sensor;
the acquisition unit is provided with a plurality of acquisition modules, each acquisition module is independently provided with a slave MCU, an ADC module and a current sensor for acquiring grounding current of a grounding electrode feeder line, which are sequentially connected, and each acquisition module is mutually independent to acquire current and store the current in the local of the slave MCU;
and the slave MCU of each acquisition module is in wired serial port communication connection with the master control MCU through the synchronous acquisition control module, and the external interrupt pins of the slave MCU of each acquisition module are respectively connected to the master control MCU.
2. The apparatus of claim 1, wherein: the master control unit comprises a wireless synchronous communication module electrically connected with the master control MCU, the acquisition unit is provided with a plurality of current acquisition modules capable of realizing wireless communication and distributed in position, and each current acquisition module is respectively communicated with the wireless synchronous communication module.
3. The apparatus of claim 2, wherein: the main control unit comprises an RS485 data interface module, a switching value acquisition module and an Ethernet module which are respectively and electrically connected with the main control MCU, the acquisition unit is provided with an ultrasonic meteorological sensor to be connected with the RS485 data interface module, a tipping bucket type rainfall sensor to be connected with the switching value acquisition module, and a digital camera to be connected with the access Ethernet module.
4. The apparatus of claim 1, wherein: the main control unit comprises a full-standard network wireless communication module for remote communication with the system background through a mobile network.
5. The apparatus of claim 4, wherein: the main control unit comprises a data storage module electrically connected with the main control MCU.
6. The apparatus of claim 1, wherein: the power supply device is characterized by further comprising a power supply unit, wherein the power supply unit is provided with a battery charging and discharging control module, a power taking module and an energy storage module which are respectively electrically connected with the battery charging and discharging control module, and the main control unit is provided with a power supply management module which is used for being controlled by the main control MCU management device to distribute and supply power so as to be electrically connected with the battery charging and discharging management module.
7. Method for operating a device according to any of claims 1-6, comprising the following steps performed in sequence:
s1, when the feeding current data is requested to be acquired, a master control MCM broadcasts and sends an acquisition instruction to each acquisition module through a serial port bus;
s2, each acquisition module starts AD acquisition of feeder current data when receiving an acquisition instruction;
s3, when the master control MCU synchronously sends an interrupt signal to the external interrupt pin of each slave MCU in an interrupt triggering mode, each channel of acquisition module is triggered by interrupt to stop acquiring and storing the current acquired data in the local slave MCU;
and S4, after acquiring the current acquisition data of each path of acquisition module, the main control MCU performs analysis, processing and calculation and uploads the current acquisition data to the background.
8. The method of operation of claim 7, wherein: when there is no need for collection, the master control MCU controls each slave MCU to turn off the power supply to enter a power saving mode, and step S1 further executes an operation of the master control MCM turning on the power supply of each collection module.
9. The method of operation of claim 7, wherein: when the timed sampling time point arrives, step S1 is executed.
10. A computer storage medium, wherein the computer storage medium stores one or more programs that, when executed by a processor, implement the method of any of claims 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110197174.1A CN112946354A (en) | 2021-02-22 | 2021-02-22 | Transmission line grounding electrode centralized wired current synchronous acquisition device, operation method and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110197174.1A CN112946354A (en) | 2021-02-22 | 2021-02-22 | Transmission line grounding electrode centralized wired current synchronous acquisition device, operation method and computer storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112946354A true CN112946354A (en) | 2021-06-11 |
Family
ID=76245179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110197174.1A Pending CN112946354A (en) | 2021-02-22 | 2021-02-22 | Transmission line grounding electrode centralized wired current synchronous acquisition device, operation method and computer storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112946354A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497030A (en) * | 2011-12-28 | 2012-06-13 | 山东电力研究院 | Line-loss actual-measurement and positioning method based on high-voltage electric energy meter and system thereof |
| US20160041068A1 (en) * | 2014-08-05 | 2016-02-11 | 01dB-METRAVIB, Société par Actions Simplifiée | Wireless Collection and Analysis of Machine Data |
| CN106814243A (en) * | 2015-11-30 | 2017-06-09 | 国网辽宁省电力有限公司沈阳供电公司 | City cable line-to-ground circulation on-Line Monitor Device |
| CN108646088A (en) * | 2018-04-20 | 2018-10-12 | 南京天溯自动化控制系统有限公司 | A kind of master-slave mode can discrete distribution multi-loop electric energy monitoring terminal and method |
| CN109470994A (en) * | 2018-11-09 | 2019-03-15 | 南京大贺电力科技有限公司 | Faulty line judgement system and method for power distribution network |
| CN110596532A (en) * | 2019-09-09 | 2019-12-20 | 广州长川科技有限公司 | A comprehensive on-line monitoring device for transmission lines |
| CN214622806U (en) * | 2021-02-22 | 2021-11-05 | 广州长川科技有限公司 | Centralized wired current synchronous acquisition device for grounding electrode of power transmission line |
-
2021
- 2021-02-22 CN CN202110197174.1A patent/CN112946354A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497030A (en) * | 2011-12-28 | 2012-06-13 | 山东电力研究院 | Line-loss actual-measurement and positioning method based on high-voltage electric energy meter and system thereof |
| US20160041068A1 (en) * | 2014-08-05 | 2016-02-11 | 01dB-METRAVIB, Société par Actions Simplifiée | Wireless Collection and Analysis of Machine Data |
| CN106814243A (en) * | 2015-11-30 | 2017-06-09 | 国网辽宁省电力有限公司沈阳供电公司 | City cable line-to-ground circulation on-Line Monitor Device |
| CN108646088A (en) * | 2018-04-20 | 2018-10-12 | 南京天溯自动化控制系统有限公司 | A kind of master-slave mode can discrete distribution multi-loop electric energy monitoring terminal and method |
| CN109470994A (en) * | 2018-11-09 | 2019-03-15 | 南京大贺电力科技有限公司 | Faulty line judgement system and method for power distribution network |
| CN110596532A (en) * | 2019-09-09 | 2019-12-20 | 广州长川科技有限公司 | A comprehensive on-line monitoring device for transmission lines |
| CN214622806U (en) * | 2021-02-22 | 2021-11-05 | 广州长川科技有限公司 | Centralized wired current synchronous acquisition device for grounding electrode of power transmission line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106841735B (en) | Electric power collector and energy consumption monitoring method thereof | |
| CN104237645A (en) | Online monitoring system and method for insulation state of substation DC system | |
| CN103293443A (en) | Overhead wire grounding fault locating method for power distribution network | |
| CN204027732U (en) | Transmission line wire temperature detection device | |
| CN108802488A (en) | Line loss fine-grained management device and method | |
| CN204925314U (en) | Distribution network checkout system that fault locating used | |
| CN111398740A (en) | Low-voltage power distribution network electricity stealing leakage detection device, monitoring system and monitoring method | |
| CN203337722U (en) | Voltage and current collecting device of grid overhead transmission line | |
| CN205333777U (en) | Phase to earth fault positioner | |
| CN111769641B (en) | Intelligent terminal of power distribution internet of things | |
| CN204575733U (en) | A kind of high-tension cable sheath grounding current on-line monitoring system | |
| CN214622806U (en) | Centralized wired current synchronous acquisition device for grounding electrode of power transmission line | |
| CN210243820U (en) | An on-line monitoring system of gateway electric energy metering device for branch inspection | |
| CN207114629U (en) | Power acquirer | |
| CN203595760U (en) | Insulator safety status detection system | |
| CN103197134A (en) | Online data collection device for lightning arrester | |
| CN214622807U (en) | Distributed wireless current synchronous acquisition device for grounding electrode of power transmission line | |
| CN216016534U (en) | Intelligent electric pole system of distribution line and distribution internet of things intelligent system applying intelligent electric pole system | |
| CN103810077A (en) | Integrated intelligent monitoring system for leads | |
| CN203444465U (en) | Integrated intelligent monitoring system of wire | |
| CN203630318U (en) | Test system for power system switching power supply module | |
| CN205246753U (en) | Equipment with ammeter function | |
| CN202153246U (en) | Direct current system grounding and ring network fault positioning system | |
| CN112946354A (en) | Transmission line grounding electrode centralized wired current synchronous acquisition device, operation method and computer storage medium | |
| CN108053633A (en) | The method and device of copy reading metering module electric energy indicating value data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |