CN110706471A - Intelligent electricity information acquisition method based on capacitive isolation multichannel redundancy technology by adopting edge algorithm - Google Patents
Intelligent electricity information acquisition method based on capacitive isolation multichannel redundancy technology by adopting edge algorithm Download PDFInfo
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Abstract
The invention discloses a multi-channel redundant intelligent power utilization information acquisition system based on a capacitive isolation technology and adopting an edge algorithm, which is characterized in that: the intelligent acquisition system mainly comprises a multichannel communication interface redundancy acquisition module based on the edge algorithm and based on the capacity isolation technology, a main control module and a monitoring control unit, wherein each communication interface adopts the capacity isolation and communication interface redundancy technology with the edge algorithm, and the acquisition module and the main control unit are interconnected and intercommunicated through the monitoring control unit to form the intelligent acquisition system with the edge algorithm redundancy communication interface. Because each module power supply can be independently controlled, the related module power supply which cannot be acquired in real time can be turned off, the power consumption of the system is reduced to below 1W, a large amount of electric energy can be saved compared with the existing terminal under the condition of batch use, and the use cost is reduced.
Description
The technical field is as follows:
the invention belongs to the field of low-voltage power utilization information, and particularly relates to a multichannel redundant intelligent power utilization information acquisition method based on a capacitive isolation technology and adopting an edge algorithm.
Background art:
the electricity utilization information acquisition system starts to be constructed comprehensively from the standard promulgated by the national power grid in 2009, the acquisition coverage rate is up to more than 97% so far, and the construction targets of full coverage, full acquisition and full cost control are basically realized. The improvement of marketing automation level is strongly supported, a nationwide acquisition network is built, the largest Internet of things is formed, and data support is provided for further development and optimization of a power grid. The acquisition system mainly comprises acquisition objects, an acquisition device and a concentrator on a basic layer of the Internet of things system, wherein the acquisition objects comprise: the collector is responsible for centralizing and then uploading collected meter data in a certain range to the concentrator, the concentrator uploads the collected meter data to the master station system, the three parts form a basic collection unit, the function and the performance of the concentrator determine the realization of the function of the system, the concentrator in the current system usually adopts a main control unit to form an externally-expanded communication module, and the communication module fails in communication function under the condition that a communication channel of the communication module breaks down. Along with the expansion of power consumption information acquisition scope, at the gas meter, the water gauge, fill the demand in other electric energy monitoring fields such as electric pile and more big, current collection terminal not only can not satisfy the requirement in the function, also can not reach the in-service use requirement in the operational reliability, the collection object of other trades except that the meter device can not only be satisfied in the function requirement terminal, and its electric equipment that faces will be more complicated, some device requirements real time monitoring, there is bigger data bandwidth demand, and this data does not need the main control unit to handle, only need upload to certain server. The expansion of the power consumption information acquisition demand range and the demand of data bandwidth require the function enhancement of the existing acquisition terminal, and simultaneously, the working reliability of the acquisition terminal is also improved.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
The invention content is as follows:
the invention aims to provide a multi-channel redundant intelligent electricity information acquisition method based on a capacitive isolation technology by adopting an edge algorithm, so that the function of the conventional acquisition terminal is enhanced, and the working reliability of the conventional acquisition terminal is improved, thereby overcoming the defects in the prior art.
In order to achieve the purpose, the invention provides a multichannel redundant intelligent power utilization information acquisition system based on a capacitive isolation technology and adopting an edge algorithm, which is characterized in that: the intelligent acquisition system mainly comprises a multichannel communication interface redundancy acquisition module based on the edge algorithm and based on the capacity isolation technology, a main control module and a monitoring control unit, wherein each communication interface adopts the capacity isolation and communication interface redundancy technology with the edge algorithm, and the acquisition module and the main control unit are interconnected and intercommunicated through the monitoring control unit to form the intelligent acquisition system with the edge algorithm redundancy communication interface.
Preferably, in the above technical solution, the apparatus further includes an acquisition module, and the acquisition module mainly includes: the RS485 acquisition module is responsible for acquiring electric equipment with an RS485 communication interface, such as a single-phase meter and a three-phase meter;
the Bluetooth module is responsible for collecting a single-phase meter and a three-phase meter with Bluetooth channels;
the remote signaling acquisition module is used for acquiring remote signaling information on site, wherein the remote signaling information comprises a circuit breaker switching node and a locking node of equipment;
the remote control output module is used for realizing local switching value output control, such as switching on of a breaker, starting of a device power supply and the like;
the CAN communication module is responsible for collecting electric equipment with a CAN communication interface, such as charging piles and the like;
the broadband and narrowband module is responsible for collecting a carrier meter;
the small wireless module collects the data, and the equipment with the small wireless communication interface comprises a water meter collector and a gas meter collector;
and the GPRS and Ethernet communication module is used for uplink communication and exchanging information with the main station.
Preferably, in the above technical solution, the acquisition modules are interconnected via a bus on the monitoring control unit, and the main control module expands the display operation unit; the main control module carries out local acquisition and control tasks, processes the acquisition and control tasks needing local real-time processing, locally maintains various parameters of the terminal, and is convenient for a user to know power utilization information in time through a user query interface.
Preferably, in the above technical solution, the monitoring control unit mainly comprises a module detection unit and a bus communication unit, and automatically judges whether a module is accessed by using a USB plug-and-play function, the bus communication unit is in a USB mode, a 7-port USB switch is responsible for managing information exchange among a plurality of modules, and a bus rate is up to 480M.
Preferably, in the above technical solution, the main chip of the main control module is an AM3359, 512M memory, 4GB FLASH, and 800MHz working main frequency, the main chip of each functional module is an STM32F072, the STM32F072 adopts a USB controller built in Cortex-M0, so as to implement communication with the processing display module through USB, the separation chip SI8641 is contained, the communication control chip of the carrier module is Hi3911, the USB2517i is USB switched, the small wireless communication chip is SX1212, and the communication distance is greater than 500 meters.
The method for acquiring the multichannel redundant intelligent power utilization information based on the edge algorithm and based on the capacity isolation technology comprises the steps that each acquisition module registers and applies for tasks to a master station in the initialization process and then automatically executes the tasks, the master control module acquires data needed by the locally executed tasks and communicates with each acquisition module through a bus unit, each functional module is switched to an independent operation mode under the condition that the master control module breaks down, and the communication module independently registers and applies for the tasks to the master station.
Preferably, in the above technical solution, the method comprises the following steps: the method comprises the following steps of electrifying initialization, automatically identifying a registration module, collecting data information of electric equipment at regular time and processing events of forwarding equipment, and completing a collection task by adopting a multi-channel redundant electric intelligent information collection method based on a capacitive isolation technology of an edge algorithm after an electric intelligent electric information collection module receives a collection command; when a communication interface has a problem, the acquisition module timely shuts off the communication interface through an edge algorithm, simultaneously shuts off a physical channel connecting the communication interface and the MCU of the module, switches another communication channel, and timely informs the master control module; and after the acquisition task is completed, isolating the communication interface which fails to acquire data, and uploading the information to the master station.
Preferably, in the above technical solution, the real-time acquisition task is specifically as follows:
s1, initializing the system, detecting the interface level of each module by the monitoring control unit, providing power for the interface with level change, electrifying and initializing the module, and completing the registration to the main control module/main station, wherein the registration comprises the address and function of the module, the acquired information address and the information content format;
s2, the master station provides a task application to the data server according to the characteristic value of the module which is successfully registered, and transmits the task content to the acquisition terminal according to the characteristic value;
s3, the acquisition unit receives the task and then stores the task to carry out the next step;
s4, starting to execute according to the received collection task;
and S5, judging whether the received collection task is completed. If the task is finished, if not, judging whether the communication physical channel to be used is normal. Repeating for three times, and if the repetition is not successful, performing the next operation; otherwise, carrying out the next operation;
s6, firstly, adopting an edge algorithm to start a communication physical channel matrix for an acquisition task according to the physical characteristics of the module, and isolating a fault channel by software;
s7, executing the result of the previous step, and accessing the normal communication interface execution scheme until the acquisition task is completed;
s8, reporting the fault information of the communication interface to the main control module;
wherein the communication module has the functions of: the communication acquisition module can send task or fault information to the main control module, and when the communication channel of the acquisition module fails, the module is automatically isolated locally, and after a normal communication interface is introduced to complete acquisition, the module reports the failed communication channel, namely, each module can still complete the acquisition task after the communication channel fails, so that the real-time data acquisition function is realized, and the redundancy of system operation is effectively improved.
Preferably, in the above technical solution, in step S2, the module characteristic value refers to a module address, an attribute, a task, and associated information that are predetermined in advance, the attribute of the module includes an address set and information content of information acquired by a block, the task refers to a task that the module can execute, that is, a configurable acquisition policy, and the associated information refers to a part in which a task set of the module is associated with other modules as a subset of the whole acquisition task, and is regarded as an expandable boundary of a functional task and is used as an identification boundary of automatic task switching during fault isolation. This paragraph describes the module characteristic values and the identification limits, which can be included in this paragraph.
Compared with the prior art, the invention has the following beneficial effects:
the invention has the following beneficial effects: the scheme adopts a capacity separation technology-based multi-channel redundancy intelligent power utilization information acquisition method adopting an edge algorithm, is different from the prior art, and can still complete a data acquisition task in a fault state of a communication channel by using the capacity separation technology-based multi-channel redundancy of the edge algorithm except that the edge algorithm has a modular structure and is convenient for a user to customize an acquisition scheme and based on a system which can conveniently realize various acquisition and control functions according to task allocation of a main station. Secondly, the modularized structure of the intelligent acquisition system with the edge algorithm redundant communication interface is convenient for users to customize acquisition schemes, various acquisition and control functions can be conveniently realized according to task allocation of a master station, the expansibility of the system is high, new requirements of the users can be realized through customizing modules and applying tasks, the diversified requirements of the users for future data acquisition are met, and data support is provided for networking a building to realize the intellectualization of acquisition control. Due to the redundant structure of the communication channel, data can be acquired in real time according to needs, the communication channel with a fault is physically isolated in real time, the influence of the communication channel on the data acquired by the channel is avoided, the stability and the reliability of system operation are improved, and after the fault is isolated, the acquisition module can automatically switch a normal channel to acquire the data of the fault channel. The exception handling capacity of the system is enhanced, and the reliability of data acquisition and control is improved. The technical scheme can provide various acquisition communication channels, meet the technical specifications of related buses, effectively acquire data in real time, and upload the data to a master station or a main control unit in time to realize real-time processing of the data; furthermore, as each module power supply can be independently controlled, the relevant module power supply which cannot be acquired in real time can be turned off, the power consumption of the system is reduced to 1W, a large amount of electric energy can be saved compared with the existing terminal under the condition of batch use, and the use cost is reduced.
Description of the drawings:
fig. 1 is a control flow chart according to a first embodiment of the present invention.
Fig. 2 is a system composition diagram according to a first embodiment of the invention.
The specific implementation mode is as follows:
the following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
The invention provides a multichannel redundant intelligent electricity information acquisition method and an acquisition terminal based on a capacitive isolation technology by adopting an edge algorithm. The acquisition terminal is communicated with the electric equipment in modes of RS485, broadband or narrowband carrier, CAN, small wireless, Bluetooth and the like to acquire electric information, outputs a control signal and realizes electric data acquisition and control.
Wherein the acquisition terminal with redundant function is shown in figure 2, which comprises a module main control, a display operation module 1, a bus control unit 2, an MCU (edge algorithm included) unit 3 (respectively in a carrier communication acquisition module, an RS485 communication acquisition module, a CAN communication acquisition module and a remote signaling acquisition module), a capacitance isolation circuit 4 (respectively in the carrier communication acquisition module, the RS485 communication acquisition module, the CAN communication acquisition module and the remote signaling acquisition module), a channel switching matrix circuit 5 (respectively in the carrier communication acquisition module, the RS485 communication acquisition module, the CAN communication acquisition module and the remote signaling acquisition module), a GPRS/4G/Ethernet communication module 6, a small wireless communication acquisition module 7, a Bluetooth module 8 and a remote control output module 9, the system is characterized in that the modules realize interconnection, fault isolation and redundancy through a module bus control unit.
The main control and display operation module 1 selects TI AM3359 as a main chip, the main frequency is 800M, a MICRON MT41K256M16TW DDR3 memory chip and 8GbEMMC to meet the local service processing of an acquisition terminal, the AM3359 is provided with two paths of gigabit Ethernet MAC interfaces and a USB interface, one path of the AM3359 is connected with a bus control unit through AR8033, the other path of the AM3359 is used as a local communication interface and is reserved for a user to download a power utilization record stored on the EMMC, the main control module stores a task instruction of a main station, the power utilization information of the user is acquired in real time and is stored in the EMMC, and the main control and display operation module 1 is communicated with a local module through the USB interface to display the equipment state of the user and receive related query commands.
The module bus control unit 2 selects a USB switching chip of a USB2517i, and has 7 paths of USB2.0 interfaces, each interface has a plug-and-play function, and meets the information interaction of a plurality of modules, and the USB2517i control chip is selected to be used as the interface, the working mode of the SWITCH is detected and controlled, the information such as the access and communication state of each module is monitored, the module is powered on when the module is accessed, the working current of the module is collected, the wrong access of the module is avoided, the specific fault position of the module is judged from the working current and the register state of the USB2517i of the module with faults through real-time monitoring, and the module with faults is uploaded to a master control or a master station (when the master control module has faults), meanwhile, the power supply of the fault module is turned off, and alarm.
RS485 gathers, little wireless, CAN gathers, control, communication module chooses STMF072C as MCU for use, CAN realize USB communication, contains USB hardware module in STMF072C and directly connects USB2517 i. The RS485, the carrier communication acquisition module, the CAN acquisition module and the remote signaling acquisition module all adopt the function of capacitance isolation output, and the influence of electric equipment on the modules is effectively avoided. After the acquisition module is accessed, the equipment number is automatically acquired, a virtual serial port is provided for establishing connection, the acquisition module registers to the main control module/main station, an acquisition task is applied, and automatic acquisition and control functions are realized.
The acquisition terminal realizes acquisition with a redundancy function, and the real-time acquisition task is processed as follows:
firstly, initializing a system, detecting the interface level of each module by a monitoring control unit, providing power for the interface with level change, electrifying and initializing the module, and finishing registration to a main control module/a main station, wherein the registration comprises the address and the function of the module, the acquired information address and the information content format;
secondly, the master station provides a task application to the data server according to the characteristic value of the module which is successfully registered, and transmits task content to the acquisition terminal according to the characteristic value;
thirdly, the acquisition unit stores the task after receiving the task and carries out the next step;
fourthly, starting to execute according to the received collection task;
and fifthly, judging whether the received collection task is completed. If the task is finished, if not, judging whether the communication physical channel to be used is normal. Repeating for three times, and if the repetition is not successful, performing the next operation; otherwise, carrying out the next operation;
sixthly, firstly, starting a communication physical channel matrix for an acquisition task by adopting an edge algorithm according to the physical characteristics of the module, and isolating a fault channel by software;
seventhly, executing the result of the previous step, and accessing a normal communication interface execution scheme until the acquisition task is completed;
and step eight, reporting the fault information of the communication interface to the main control module.
Wherein the communication module has the functions of: the communication acquisition module can send task or fault information to the main control module, and when the communication channel of the acquisition module fails, the module is automatically isolated locally, and after a normal communication interface is introduced to complete acquisition, the module reports the failed communication channel, namely, each module can still complete the acquisition task after the communication channel fails, so that the real-time data acquisition function is realized, and the redundancy of system operation is effectively improved.
The beneficial effect of this patent lies in: one communication acquisition module can send task or fault information to the main control module, and the other communication acquisition module reports a fault communication channel after automatically isolating the communication channel and introducing a normal communication interface to complete acquisition when the communication channel of the acquisition module fails, namely, each module can still complete the acquisition task after the communication channel fails, thereby realizing the real-time data acquisition function and effectively improving the redundancy of system operation.
Comparing the test data of the front part and the rear part of the scheme:
". note: 1. the upper table power consumption is the average dynamic power consumption during communication;
2. the communication efficiency is calculated at a 2400bps communication rate, 8 bytes per instruction. Communication efficiency = (successfully executed instruction per second ÷ sent instruction per second) × 100%.
Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. Adopt marginal algorithm's redundancy intelligent power consumption information acquisition system of multichannel based on holding separate technology, its characterized in that: the intelligent acquisition system mainly comprises a multichannel communication interface redundancy acquisition module based on the edge algorithm and based on the capacity isolation technology, a main control module and a monitoring control unit, wherein each communication interface adopts the capacity isolation and communication interface redundancy technology with the edge algorithm, and the acquisition module and the main control unit are interconnected and intercommunicated through the monitoring control unit to form the intelligent acquisition system with the edge algorithm redundancy communication interface.
2. The multi-channel redundant intelligent power utilization information acquisition system based on the capacitive isolation technology and adopting the edge algorithm as claimed in claim 1, characterized in that: still include the collection module, the collection module mainly includes: the RS485 acquisition module is responsible for acquiring electric equipment with an RS485 communication interface, such as a single-phase meter and a three-phase meter;
the Bluetooth module is responsible for collecting a single-phase meter and a three-phase meter with Bluetooth channels;
the remote signaling acquisition module is used for acquiring remote signaling information on site, wherein the remote signaling information comprises a circuit breaker switching node and a locking node of equipment;
the remote control output module is used for realizing local switching value output control, such as switching on of a breaker, starting of a device power supply and the like;
the CAN communication module is responsible for collecting electric equipment with a CAN communication interface, such as charging piles and the like;
the broadband and narrowband module is responsible for collecting a carrier meter;
the small wireless module collects the data, and the equipment with the small wireless communication interface comprises a water meter collector and a gas meter collector;
and the GPRS and Ethernet communication module is used for uplink communication and exchanging information with the main station.
3. The multi-channel redundant intelligent power utilization information acquisition system based on the capacitive isolation technology and adopting the edge algorithm as claimed in claim 2, characterized in that: the acquisition modules are interconnected through a bus on the monitoring control unit, and the main control module expands the display operation unit; the main control module carries out local acquisition and control tasks, processes the acquisition and control tasks needing local real-time processing, locally maintains various parameters of the terminal, and is convenient for a user to know power utilization information in time through a user query interface.
4. The multi-channel redundant intelligent power utilization information acquisition system based on the capacitive isolation technology and adopting the edge algorithm as claimed in claim 1, characterized in that: the monitoring control unit mainly comprises a module detection unit and a bus communication unit, the USB plug-and-play function is facilitated, whether modules are connected or not is automatically judged, the bus communication unit is in a USB mode, a 7-port USB switch is responsible for managing information exchange among a plurality of modules, and the bus speed is up to 480M.
5. The multi-channel redundant intelligent power utilization information acquisition system based on the capacitive isolation technology and adopting the edge algorithm as claimed in claim 2, characterized in that: the main chip of the main control module is AM3359, 512M memory, 4GB FLASH, work main frequency 800MHz, the main chip of each functional module is STM32F072, STM32F072 adopts a USB controller built in Cortex-M0, communication with the processing display module through USB is realized, a capacity separation chip SI8641, a communication control chip of the carrier module is Hi3911, a USB exchange chip USB2517i, a small wireless communication chip is SX1212, and the communication distance is more than 500 meters.
6. The multichannel redundant intelligent electricity utilization information acquisition method based on the capacity separation technology by adopting the edge algorithm is characterized by comprising the following steps of: each acquisition module registers and applies for tasks to the master station in the initialization process and then automatically executes the tasks, the master control module acquires data required by the locally executed tasks, the data are communicated with the acquisition modules through the bus unit, under the condition that the master control module breaks down, each functional module is switched to an independent operation mode, and the communication module independently registers and applies for the tasks to the master station.
7. The multi-channel redundant intelligent electricity information collection method based on the capacitive isolation technology and adopting the edge algorithm as claimed in claim 6, wherein: the method comprises the following steps: the method comprises the following steps of electrifying initialization, automatically identifying a registration module, collecting data information of electric equipment at regular time and processing events of forwarding equipment, and completing a collection task by adopting a multi-channel redundant electric intelligent information collection method based on a capacitive isolation technology of an edge algorithm after an electric intelligent electric information collection module receives a collection command; when a communication interface has a problem, the acquisition module timely shuts off the communication interface through an edge algorithm, simultaneously shuts off a physical channel connecting the communication interface and the MCU of the module, switches another communication channel, and timely informs the master control module; and after the acquisition task is completed, isolating the communication interface which fails to acquire data, and uploading the information to the master station.
8. The multi-channel redundant intelligent electricity information collection method based on the capacitive isolation technology and adopting the edge algorithm as claimed in claim 7, wherein: the real-time acquisition task is as follows:
s1, initializing the system, detecting the interface level of each module by the monitoring control unit, providing power for the interface with level change, electrifying and initializing the module, and completing the registration to the main control module/main station, wherein the registration comprises the address and function of the module, the acquired information address and the information content format;
s2, the master station provides a task application to the data server according to the characteristic value of the module which is successfully registered, and transmits the task content to the acquisition terminal according to the characteristic value;
s3, the acquisition unit receives the task and then stores the task to carry out the next step;
s4, starting to execute according to the received collection task;
s5, judging whether the received collection task is completed;
if the task is finished, if not, judging whether the communication physical channel to be used is normal.
9. Repeating for three times, and if the repetition is not successful, performing the next operation; otherwise, carrying out the next operation;
s6, firstly, adopting an edge algorithm to start a communication physical channel matrix for an acquisition task according to the physical characteristics of the module, and isolating a fault channel by software;
s7, executing the result of the previous step, and accessing the normal communication interface execution scheme until the acquisition task is completed;
s8, reporting the fault information of the communication interface to the main control module;
wherein the communication module has the functions of: the communication acquisition module can send task or fault information to the main control module, and when the communication channel of the acquisition module fails, the module is automatically isolated locally, and after a normal communication interface is introduced to complete acquisition, the module reports the failed communication channel, namely, each module can still complete the acquisition task after the communication channel fails, so that the real-time data acquisition function is realized, and the redundancy of system operation is effectively improved.
10. The multi-channel redundant intelligent electricity information collection method based on the capacitive isolation technology and adopting the edge algorithm as claimed in claim 7, wherein: in step S2, the module characteristic values refer to a module address, an attribute, a task, and associated information that are predetermined in advance, an address set of information acquired by an attribute packet of the module and information content, the task refers to a task that can be executed by the module, that is, a configurable acquisition policy, and the associated information refers to a part in which a task set of the module is associated with other modules as a subset of the whole acquisition task, and is regarded as an expandable boundary of a functional task and is used as an identification boundary of automatic task switching during fault isolation.
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