CN212435433U - Intelligent electricity utilization monitoring device - Google Patents
Intelligent electricity utilization monitoring device Download PDFInfo
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- CN212435433U CN212435433U CN202020570115.5U CN202020570115U CN212435433U CN 212435433 U CN212435433 U CN 212435433U CN 202020570115 U CN202020570115 U CN 202020570115U CN 212435433 U CN212435433 U CN 212435433U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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Abstract
An intelligent electricity utilization monitoring device comprises a main control board and a signal processing board. The main control board comprises a power supply module, a microprocessor unit, a memory module, a communication module, an input detection module, a relay control output module and an expansion matching function module. The signal processing board comprises an analog signal sampling module and a communication address setting module. The microprocessor unit is respectively connected with the memory module, the communication module, the input detection module, the relay control output module, the expansion matching function module and the analog signal conditioned by the signal processing board; the utility model discloses be applied to intelligent power distribution cabinet iPANEL based on the internet, can monitor comprehensively the multiple electricity and the safety parameter of supplying distribution system and switch board itself, the sampling precision is high, and communication speed is fast, and the ad hoc network forms with iPANEL main control unit and cashier's office in a shop monitored control system, satisfies the functional demand of intelligent switch board, has reached to the consumer centralized monitoring and effective management, realizes the purpose of intelligence fortune dimension.
Description
Technical Field
The utility model relates to an instrument and meter technical field especially relates to an intelligent power consumption monitoring device.
Background
With the development of economy, a large number of public buildings such as hospitals, schools, venues and the like and factories are built, expanded and updated, and accordingly a large number of power distribution complete equipment is widely applied. At present, the types of low-voltage complete power distribution cabinets mainly comprise GCS, GCK, MNS, GGD, PGL and the like. The PGL and GGD models are mainly fixed power distribution cabinets, and the GCK, GCS and MNS models are low-voltage draw-out switch cabinets. The traditional complete set of power distribution cabinet mainly applies a circuit breaker to meet the distribution demand of a project, the monitoring and control of the whole power distribution system are developed from a pointer meter, a relay and the like based on a mechanical electromagnetic technology to a network multifunctional power meter, a microcomputer comprehensive protection device and the like based on an electronic digital technology, and the management means is gradually and fully manually patrolled and developed to the assistance of an intelligent system and even unattended management.
Along with the increasing diversity of various industry projects and power consumption load categories, particularly the projects such as data centers, hospitals, assembly line factories and the like with very high power consumption safety requirement levels, the power consumption loads are wide, the consumption is large, the power consumption is high, the power supply is required to be safe and reliable, various power parameters are qualified, the operation technical state is good, the environment-friendly and energy-saving requirements are met, especially, the hidden danger of a power supply and distribution system needs to be monitored and analyzed on line and pre-alarmed in time, and efficient intelligent operation and maintenance management is needed. Therefore, these projects not only require basic power distribution functions, but also have higher requirements on safety, reliability and efficiency of power utilization. The demand of intelligent switch board arises at the same time. The intelligent power distribution cabinet has comprehensive self-detection, self-analysis, self-diagnosis and self-management functions, an intelligent field monitoring system is usually arranged on a cabinet, and an intelligent power distribution cabinet iPANel based on the internet is a typical intelligent power distribution cabinet and is widely applied to various industrial projects. But lack the terminal monitoring equipment that can satisfy the user and supply distribution system centralized real time monitoring that can be applied to intelligent power distribution cabinet.
SUMMERY OF THE UTILITY MODEL
According to the problem that prior art exists, the utility model provides an intelligent power consumption monitoring device can carry out comprehensive monitoring to the multiple electricity and the safety parameter that supply distribution system and switch board itself, and the sampling precision is high, and communication speed is fast, and the network deployment is from the network deployment, and the cooperation of switch board main control unit forms integrative switch board intelligent monitoring management system, reaches to electrical equipment centralized monitoring and effective management, realizes the purpose of intelligence fortune dimension.
The technical scheme of the utility model is that:
1. an intelligent power consumption monitoring device is characterized by comprising a main control board and a signal processing board, wherein the main control board comprises a microprocessor unit, and a memory module, a communication module, an input detection module, a relay control output module and an expansion matching function module which are respectively connected with the microprocessor unit; the signal processing board comprises an analog signal sampling module and a communication address setting module; the analog signal sampling module and the communication address setting module are respectively connected with the microprocessor unit of the main control board; the power supply module is used for supplying power to the main control board and the signal processing board; three-phase alternating current voltage and current strong current signals reflecting load operation states in the power supply and distribution network are conditioned by the analog signal sampling module and then enter the microprocessor unit to be subjected to analog/digital conversion and calculation, leakage current signals and temperature signals reflecting electrical safety enter the microprocessor unit to be subjected to analog-digital conversion and calculation through the expansion matching function module, and calculated electrical parameters are transmitted to the power distribution cabinet main control unit through the communication module to be subjected to real-time analysis, statistics and prediction.
2. The power module can realize the wide-range input of direct current 9V-36V and the output of direct current 5V power 10 VA; the direct current 5V supplies power for the main control board, and then the voltage conversion chip outputs 2.5V reference voltage to supply power for the signal processing board.
3. The memory module adopts a ferroelectric memory unit which is erased and written for an unlimited time and is not volatile when power is down, and comprises a main area and a backup area; the system is used for storing calibration parameters, user programmable setting parameters, event records (SOE) and real-time electric power data; when the device is restarted after power failure, the parameter data stored before the power failure can be automatically called to operate.
4. The communication module adopts an RS485 magnetic isolation chip to provide isolated 5V independent power supply, the maximum communication speed can reach 115.2kbps, and a standard MODBUS-RTU communication protocol is adopted.
5. The open detection module adopts an optocoupler chip to perform signal isolation to improve the anti-interference capability, and defaults to support 4-path open signal detection for monitoring the displacement signal of the external switch in real time.
6. The relay control output module supports the output capability of a single-path DC30V/AC250V 5A, and 2-path relay output is used for controlling the action of the relay.
7. The expansion matching function module adopts an expansion small card mode, adopts a DIP contact pin to be welded on the main control board, and carries out signal transmission through the contact pin; the expansion small card can select 2-path expansion opening detection or 1-path leakage current detection or 1-path temperature detection, and the requirements of different occasions are met.
8. The analog signal sampling module comprises a CT current transformer, a voltage division sampling circuit, a current signal conditioning circuit based on operational amplifier and a voltage signal conditioning circuit; the CT current transformer converts rated 5A alternating current into 675mV signal through a current signal conditioning circuit and transmits the 675mV signal to an ADC (analog-to-digital converter) in the microprocessor unit; the voltage division sampling circuit converts a rated 220V alternating voltage into a 730mV signal through the voltage signal conditioning circuit and transmits the 730mV signal to an ADC (analog-to-digital converter) in the microprocessor unit.
9. The communication address setting module adopts a 4-bit dial switch to set a communication address, adopts an 8421 coding rule and is linked to a main control unit of the power distribution cabinet through a 485 communication line; the communication address setting module is attached with an LED lamp to represent a communication state, and the normal or fault state of communication is represented by the flashing frequency of the LED lamp.
10. The main control board and the signal processing board are fixedly connected and signal-transmitted by adopting a gold-plated 2 x 8DIP direct-insertion type needle seat.
The technical effects of the utility model:
the utility model provides an intelligence power consumption monitoring device can monitor the multiple electricity and the safety parameter of supplying distribution system and switch board itself comprehensively, and the sampling precision is high, and communication speed is fast, and the ad hoc network forms integrative switch board intelligent monitoring management system with the cooperation of switch board main control unit, has reached to electrical equipment centralized control and effective management, realizes the purpose of intelligence fortune dimension.
Compared with the prior art and products, the utility model has the advantages that:
the utility model discloses a traditional multi-functional electric power instrument of network can be replaced to intelligent power consumption monitoring device, and the function is more powerful, not only monitors the measurement to electrical operation parameter, can also carry out centralized monitoring measurement to electrical safety class parameter, and electric leakage detector and temperature detector can be replaced to some occasions.
The utility model discloses an intelligent power consumption monitoring device and iPANEL switch board main control unit form the intelligent control management system of a set of hard and software integrative switch board, combine on-the-spot electric drawing and professional experience to carry out the parameter and preset before dispatching from the factory, the user is gone up the electricity promptly and is used, avoids loaded down with trivial details parameter setting, communication line secondary to lay, and the management and control is concentrated to distribution system very convenient, satisfies the intelligent demand of switch board.
The utility model discloses an intelligence is with electric monitoring device supports the function that carries out online upgrading through the communication mouth under the electrified condition, carries out the function upgrading under the condition that does not destroy on-the-spot electric power operation, and is more economical safer.
The utility model discloses an intelligent power consumption monitoring device has adopted the modular design, only 2 PCB boards: the master control board and the signal processing board adopt a DIP gold-plating direct-insertion type needle base to carry out fixed connection and signal transmission, and can save working procedures and facilitate production in production.
The utility model discloses a guide rail mounting means, small in size can install in the drawer unit of switch board, the convenient maintenance at the electric power scene.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an intelligent electricity consumption monitoring device according to the present invention.
Detailed Description
The following describes an embodiment of the intelligent electricity monitoring apparatus according to the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an intelligent electricity consumption monitoring device according to the present invention. An intelligent electricity utilization monitoring device comprises a main control board and a signal processing board, wherein the main control board comprises a microprocessor unit, and a memory module, a communication module, an input detection module, a relay control output module and an expansion matching function module which are respectively connected with the microprocessor unit; the signal processing board comprises an analog signal sampling module and a communication address setting module; the analog signal sampling module and the communication address setting module are respectively connected with the microprocessor unit of the main control board; the power supply module is used for supplying power to the main control board and the signal processing board; three-phase alternating current voltage and current strong current signals reflecting load operation states in the power supply and distribution network are conditioned by the analog signal sampling module and then enter the microprocessor unit to be subjected to analog/digital conversion and calculation, leakage current signals and temperature signals reflecting electrical safety enter the microprocessor unit to be subjected to analog-digital conversion and calculation through the expansion matching function module, and calculated electrical parameters are transmitted to the power distribution cabinet main control unit through the communication module to be subjected to real-time analysis, statistics and prediction.
Three-phase alternating current voltage and current strong current signals reflecting load operation states in a power supply and distribution network are conditioned by an analog signal sampling module, enter a microprocessor unit to perform analog/digital conversion and calculation, leakage current signals and temperature signals reflecting electrical safety enter the microprocessor unit to perform analog-digital conversion and calculation through an expansion function module, parameters such as voltage, current, power, electric power, leakage current, temperature, harmonic waves, unbalance degrees and the like are calculated through a root mean square algorithm and a fast Fourier transform algorithm, and the calculated electrical parameters are transmitted to a main control unit of an iPanel power distribution cabinet through a communication module by adopting high-speed 485 communication to perform real-time analysis, statistics and prediction. When various operation parameters of the power supply network are abnormal, a pre-alarm signal can be sent out in time, sound and light alarm is carried out according to set logic or tripping action is carried out through a relay control output module, and a preliminary fault diagnosis result is formed and fed back to the main control unit. The switch-in detection module monitors an external switch deflection signal in real time, the time can be accurate to ms level, SOE event records can be formed when the switch deflects, the relay acts, the alarm and other events, and further fault diagnosis and analysis are facilitated.
The power module can provide wide-range input of direct current 9V-36V and output capacity of direct current 5V power 10VA, the direct current 5V supplies power for the main control board, and then the voltage conversion chip outputs 2.5V reference voltage to supply power for the signal processing board.
The memory module adopts the unlimited number to erase and write and falls the nonvolatile ferroelectric memory cell of power failure and carry out data storage for important data such as save calibration parameter, user programmable set parameter, incident record SOE and real-time electric degree carry out the two districts of main district and backup area and keep, carry out check and inspection to two district data in the operation, judge whether data is correct, suffer destruction if data, then indicate the mistake, import default parameter and resume initial setting. The memory module stores the real-time electrical value once every 10s, and when a new SOE event record exists, the SOE event record is refreshed and stored, and at most 20 SOE event records are stored. When the device is restarted after power failure, the parameter data stored before the power failure can be automatically called to operate.
The communication module adopts an RS485 magnetic isolation chip to provide isolated 5V independent power supply, the maximum communication speed can reach 115.2kbps, and a standard MODBUS-RTU communication protocol is adopted.
The communication address setting module adopts a 4-bit dial switch to set a communication address, adopts 8421 coding rules and can represent 0-15 bit address values, when the value is 0, the function of the setting module is invalid, the communication address of the device is effectively set by software, and when the value is not 0, the setting address of the dial switch is preferentially valid. The intelligent power consumption monitoring device with the set address is connected to a main control unit of the iPANel power distribution cabinet through a 485 communication line, and is electrified for automatic communication. The communication setting module is attached with an LED lamp to represent the communication state, and the normal or fault state of the communication is represented through the flashing frequency of the LED lamp, so that the communication problem positioning inspection is facilitated.
The open detection module adopts an optical coupling chip to perform signal isolation to improve the anti-interference capability, and defaults to support 4-path open signal detection for monitoring the displacement signal of the external switch in real time.
The relay control output module supports the output capability of a single-path DC30V/AC250V 5A, and the 2-path relay output is used for controlling the action of the relay.
The expansion matching function module adopts an expansion small card mode, adopts a DIP contact pin to be welded on the main control board, and carries out signal transmission through the contact pin; the expansion small card can select 2-path expansion opening detection or 1-path leakage current detection or 1-path temperature detection, and the requirements of different occasions are met.
The analog signal sampling module comprises a CT current transformer, a voltage division sampling circuit, a current signal conditioning circuit based on operational amplifier and a voltage signal conditioning circuit; the CT current transformer converts rated 5A alternating current into 675mV signal through a current signal conditioning circuit and transmits the 675mV signal to an ADC (analog-to-digital converter) in the microprocessor unit; the voltage division sampling circuit converts a rated 220V alternating voltage into a 730mV signal through the voltage signal conditioning circuit and transmits the 730mV signal to an ADC (analog-to-digital converter) in the microprocessor unit.
The main control board and the signal processing board are fixedly connected and signal-transmitted by adopting a gold-plated 2 x 8DIP direct-insertion type needle seat, the needle seat is welded on the main board, and the contact pin is welded on the signal processing board.
The present invention has been described in detail above. The above description of the embodiments is only for the purpose of helping to understand the method of the present invention and its core idea; for those skilled in the art, modifications or equivalent substitutions can be made on the specific embodiments and application ranges according to the idea of the present invention; in summary, the content of the present specification should not be construed as limiting the present invention, and all technical solutions and modifications thereof which do not depart from the spirit and scope of the present invention are covered in the protection scope of the present invention.
Claims (10)
1. An intelligent power consumption monitoring device is characterized by comprising a main control board and a signal processing board, wherein the main control board comprises a microprocessor unit, and a memory module, a communication module, an input detection module, a relay control output module and an expansion matching function module which are respectively connected with the microprocessor unit; the signal processing board comprises an analog signal sampling module and a communication address setting module; the analog signal sampling module and the communication address setting module are respectively connected with the microprocessor unit of the main control board; the power supply module is used for supplying power to the main control board and the signal processing board; three-phase alternating current voltage and current strong current signals reflecting load operation states in the power supply and distribution network are conditioned by the analog signal sampling module and then enter the microprocessor unit to be subjected to analog-to-digital conversion and calculation, leakage current signals and temperature signals reflecting electrical safety enter the microprocessor unit to be subjected to analog-to-digital conversion and calculation through the expansion matching function module, and calculated electrical parameters are transmitted to the power distribution cabinet main control unit through the communication module to be subjected to real-time analysis, statistics and prediction.
2. The intelligent electricity consumption monitoring device according to claim 1, wherein the power module can realize wide-range input of direct current 9V-36V and output of direct current 5V power 10 VA; the direct current 5V supplies power for the main control board, and then the voltage conversion chip outputs 2.5V reference voltage to supply power for the signal processing board.
3. The intelligent electricity consumption monitoring device according to claim 1, wherein the memory module employs an infinitely erasable and erasable non-volatile ferroelectric memory unit, which includes a main area and a backup area; the system is used for storing calibration parameters, user programmable setting parameters, event records (SOE) and real-time electric power data; when the device is restarted after power failure, the parameter data stored before the power failure can be automatically called to operate.
4. The intelligent electricity consumption monitoring device of claim 1, wherein the communication module uses an RS485 magnetic isolation chip to provide isolated 5V independent power supply, the maximum communication speed can reach 115.2kbps, and a standard MODBUS-RTU communication protocol is adopted.
5. The intelligent power consumption monitoring device according to claim 1, wherein the open detection module adopts an optical coupling chip to perform signal isolation to improve the anti-interference capability, and supports 4-path open signal detection by default for monitoring the external switch displacement signal in real time.
6. The intelligent electricity consumption monitoring device of claim 1, wherein the relay control output module supports single-way DC30V/AC250V 5A output capability, 2-way relay output, for controlling relay action.
7. The intelligent power consumption monitoring device according to claim 1, wherein the extended matching function module adopts an extended small card mode, is welded on the main control board by a DIP pin, and performs signal transmission through the pin; the expansion small card can select 2-path expansion opening detection or 1-path leakage current detection or 1-path temperature detection, and the requirements of different occasions are met.
8. The intelligent electricity consumption monitoring device according to claim 1, wherein the analog signal sampling module comprises a CT current transformer, a voltage division sampling circuit, a current signal conditioning circuit based on operational amplifier and a voltage signal conditioning circuit; the CT current transformer converts rated 5A alternating current into 675mV signal through a current signal conditioning circuit and transmits the 675mV signal to an ADC (analog-to-digital converter) in the microprocessor unit; the voltage division sampling circuit converts a rated 220V alternating voltage into a 730mV signal through the voltage signal conditioning circuit and transmits the 730mV signal to an ADC (analog-to-digital converter) in the microprocessor unit.
9. The intelligent electricity consumption monitoring device according to claim 1, wherein the communication address setting module adopts a 4-bit dial switch to set a communication address, adopts 8421 coding rules, and is linked to the main control unit of the power distribution cabinet through a 485 communication line; the communication address setting module is attached with an LED lamp to represent a communication state, and the normal or fault state of communication is represented by the flashing frequency of the LED lamp.
10. The intelligent electricity consumption monitoring device as claimed in one of claims 1 to 9, wherein the main control board and the signal processing board are fixedly connected and signal-transmitted by using a gold-plated 2 x 8DIP direct-insert type needle seat.
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| CN202020570115.5U CN212435433U (en) | 2020-04-16 | 2020-04-16 | Intelligent electricity utilization monitoring device |
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| CN202020570115.5U CN212435433U (en) | 2020-04-16 | 2020-04-16 | Intelligent electricity utilization monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311257A (en) * | 2021-04-28 | 2021-08-27 | 航粤智能电气股份有限公司 | Comprehensive monitoring device for electric equipment |
| CN117614939A (en) * | 2024-01-19 | 2024-02-27 | 杭州方千科技有限公司 | 485 communication address automatic allocation method for image light supplementing device |
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2020
- 2020-04-16 CN CN202020570115.5U patent/CN212435433U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311257A (en) * | 2021-04-28 | 2021-08-27 | 航粤智能电气股份有限公司 | Comprehensive monitoring device for electric equipment |
| CN117614939A (en) * | 2024-01-19 | 2024-02-27 | 杭州方千科技有限公司 | 485 communication address automatic allocation method for image light supplementing device |
| CN117614939B (en) * | 2024-01-19 | 2024-05-28 | 杭州方千科技有限公司 | 485 Communication address automatic allocation method for image light supplementing device |
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