CN211530850U

CN211530850U - Intelligent power distribution terminal and system

Info

Publication number: CN211530850U
Application number: CN201921800393.9U
Authority: CN
Inventors: 孙巍巍
Original assignee: Tianjin Zhongli Shendun Electronics Technology Co Ltd
Current assignee: Tianjin Zhongli Shendun Electronics Technology Co Ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-09-18
Anticipated expiration: 2029-10-16

Abstract

The utility model provides an intelligent power distribution terminal and a system, which comprises an intelligent power distribution terminal circuit, wherein the intelligent power distribution terminal circuit adopts a functional module structure; the intelligent power distribution terminal circuit is arranged on the circuit board; the intelligent power distribution terminal circuit at least comprises a calculation module, a physical quantity interface module and a superior communication module; the physical quantity interface module and the superior communication module are connected with the computing module; the device also comprises a control output module; and the control output module controls a shunt release and an electric operating mechanism of the circuit breaker. The utility model has the advantages that: the control output module is divided into two controllable/uncontrollable series according to whether the control output module is set or not; the intelligent power distribution terminal circuit adopts different calculation modules, and modules matched with functional requirements are arranged according to different calculation forces of the calculation modules, so that different grades of model products are divided; the circuit normalization is realized according to the functions to form a functional module, and different requirements of customers are met.

Description

Intelligent power distribution terminal and system

Technical Field

The utility model belongs to the technical field of the distribution, concretely relates to intelligent power distribution terminal and system.

Background

Through development for many years, digital power distribution terminals have been widely used, and different requirements of different customers are reflected from different project applications, and the requirements of the same customer in different periods are also different.

If the product is customized for the specific project to meet the needs of different specific projects, the labor cost and the processing cost from the internal circuit design to the product model selection are high, the profit margin is reduced, and the competitiveness in the market is weakened. Meanwhile, many technical details of products without standardized and functionalized modules are not enough, and an optimal scheme is not necessarily adopted in each technical detail; the situation that the design configuration is unreasonable exists, and the customized non-standardized and non-functional module product cannot present good performance in practical application and cannot make the best use of things.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect among the prior art, provide intelligent power distribution terminal and system.

In order to achieve the above object, an embodiment of the present invention provides an intelligent power distribution terminal, which includes an intelligent power distribution terminal circuit, and is characterized in that the intelligent power distribution terminal circuit adopts a functional module structure; the intelligent power distribution terminal circuit is arranged on the circuit board; the intelligent power distribution terminal circuit at least comprises a computing module, a physical quantity interface module and a superior communication module; the physical quantity interface module and the superior communication module are connected with the computing module;

the calculation module collects input physical quantity data, processes the collected physical quantity data, stores the data and controls output.

The physical quantity interface module comprises an interface circuit for conditioning a signal of the detected input physical quantity, a digital quantity acquisition/output control circuit and an analog signal output circuit;

and the upper-level communication module comprises a communication interface with the upper level.

Furthermore, the intelligent power distribution terminal circuit also comprises a control output module; the control output module is connected with the computing module;

and the control output module controls a shunt release and/or an electric operating mechanism of the circuit breaker.

Furthermore, the intelligent power distribution terminal circuit also comprises a display communication module, and the display communication module is connected with the calculation module;

and the display communication module establishes communication with the monitoring equipment, acquires and displays data and communicates with the upper level.

The monitoring equipment comprises other intelligent power distribution terminals without display communication modules, intelligent lightning protection devices, intelligent water meters, intelligent gas meters, intelligent heat meters and ground resistance detection equipment.

Furthermore, the intelligent power distribution terminal circuit further comprises an additional function module, wherein the additional function module is connected with the computing module to realize the extended function of the intelligent power terminal.

Preferably, the additional functional module comprises a fault arc detection circuit and/or a current transformer fault protection circuit.

Furthermore, the intelligent power distribution terminal circuit also comprises a power supply module, wherein the power supply module is connected with the computing module, so that power supply conversion is realized under different power supply voltage conditions, and power supply is provided for the functional module;

preferably, the input end of the power supply module is connected to each loop to be tested to obtain power or connected to an independent power supply to obtain power;

the power supply condition of the loop to be tested does not influence the power supply condition of the independent power supply connected to the input end of the power supply module.

Furthermore, the computing module comprises an MCU, an EEPROM, a reset unit, a clock unit and a FLASH, and the EEPROM, the reset unit, the clock unit and the FLASH are all electrically connected with the MCU.

Further, the physical quantities include digital quantities, analog quantities, and switching quantities; the physical quantity interface module comprises one or more of an electric energy metering interface circuit, a switching value monitoring circuit, a protection current and voltage interface circuit, a dual-power state monitoring circuit and a temperature monitoring circuit.

Furthermore, the communication module at the upper level comprises a wired communication interface and/or a wireless communication interface; the display communication module is also provided with a wired communication interface and/or a wireless communication interface;

preferably, the wired communication interface comprises a combination of one or more of RS485, CAN, power carrier, ethernet;

preferably, the wireless communication interface comprises one or more of Wifi, bluetooth, Zigbee, 2G/3G/4G/5G in combination.

Further, the circuit board comprises a first circuit board and a second circuit board, the first circuit board and the second circuit board are arranged in parallel, and the first circuit board and the second circuit board are connected through a connector;

the functional module of the intelligent power distribution terminal circuit is solidified on the first circuit board or is fixed with the first circuit board through a connector;

and the second circuit board is provided with an external output terminal and a secondary transformer.

The intelligent power distribution system is characterized by comprising an intelligent power distribution terminal, wherein the intelligent power distribution terminal is in communication connection with a data processing center through equipment with acquisition and communication functions; the device with the collection and communication functions comprises a data collector.

The intelligent power distribution system is characterized by comprising an intelligent power distribution terminal, wherein the intelligent power distribution terminal is in communication connection with the data processing center;

the functional modularization method of the intelligent power distribution terminal is characterized by comprising the following steps of:

s1: selecting an intelligent power distribution terminal circuit computing module according to system resources required to be occupied by a to-be-selected functional module, wherein the system resources comprise at least one of CPU (central processing unit) resources, storage resources and peripheral interfaces;

s2: and selecting the matched functional module according to the system resources provided by the selected intelligent power distribution terminal circuit computing module.

The step S2 of selecting a matched functional module according to the system resources provided by the selected intelligent power distribution terminal circuit computing module specifically includes the following steps:

and SA: judging whether a control output module is selected according to whether the function requirements comprise the functions of a shunt release and an electric operating mechanism for controlling the circuit breaker;

SB: and selecting various functional modules of the intelligent power distribution terminal circuit according to the system resources and various functional requirements provided by the computing module.

The model selection method of the intelligent power distribution terminal is characterized by comprising the following steps:

the method comprises the following steps: selecting a functional module of the intelligent power distribution terminal circuit according to the function;

step two: and checking the required system resources according to the functional modules of the intelligent power distribution terminal circuit, and selecting the calculation module of the intelligent power distribution terminal circuit according to the required system resources.

Further, the step one of selecting the functional module of the intelligent power distribution terminal circuit according to the function specifically comprises the following steps:

step 1: judging whether a control output module is selected according to whether the function requirements comprise the functions of a shunt release and an electric operating mechanism for controlling the circuit breaker;

step 2: and selecting various functional modules of the intelligent power distribution terminal circuit according to various functional requirements.

Furthermore, the system resources provided by the calculation module in the step two comprise system resources and expansion allowance required by the functional module of the intelligent power distribution terminal circuit;

and expanding the allowance, and reserving system resources for subsequent upgrading and reconstruction of the expanded function.

Further, the system resource in the second step includes at least one of a CPU resource, a storage resource, and a peripheral interface.

Further, the functions in the first step are realized by one or more functional modules.

The method for expanding the intelligent power distribution terminal is characterized in that a functional module to be expanded is selected according to system resources provided by a computing module of an existing intelligent power distribution terminal circuit, and comprises the following steps:

step 1: accounting the surplus system resources of the intelligent power distribution terminal circuit calculation module;

step 2: and selecting an expansion functional module of the intelligent power distribution terminal circuit according to the surplus system resources and the intended expansion function.

Further, the step 1 of calculating the residual system resources of the intelligent power distribution terminal circuit calculation module specifically determines the residual system resources by deducting the system resources occupied by the existing functional module from the system resources provided by the existing intelligent power distribution terminal circuit calculation module.

Further, in step 2, an extended functional module of the intelligent power distribution terminal circuit is selected according to the residual system resources and the to-be-extended function, and the method comprises the following steps:

step A: judging whether a control output module is selected according to residual system resources and according to whether a shunt release and an electric operating mechanism for controlling the circuit breaker have functions in the function requirements;

and B: and selecting various functional modules for expanding the intelligent power distribution terminal circuit according to various expanded functional requirements.

The utility model has the advantages that: the design is reasonable, and the control output module is divided into two controllable/uncontrollable series according to whether the control output module is arranged or not; the intelligent power distribution terminal circuit adopts different calculation modules, and modules matched with functional requirements are arranged according to different calculation forces of the calculation modules, so that different grades of model products are divided; the circuit normalization is realized according to the functions to form a modular structure, different requirements of customers are met, the design and configuration are reasonable, good performance is presented in practical application, and the best use is achieved.

Drawings

Fig. 1 is a block diagram of an intelligent power distribution terminal circuit according to embodiment 1 of the present invention;

fig. 2 is a block diagram of an intelligent power distribution terminal circuit according to embodiment 2 of the present invention;

fig. 3 is a block diagram of an intelligent power distribution terminal circuit according to embodiment 3 of the present invention;

fig. 4 is a block diagram of an intelligent power distribution terminal circuit according to embodiment 4 of the present invention;

fig. 5 is a block diagram of an intelligent power distribution terminal circuit according to embodiment 5 of the present invention;

fig. 6 is a block diagram of an intelligent power distribution terminal circuit according to embodiment 6 of the present invention;

fig. 7 is a block diagram of an intelligent power distribution terminal circuit according to embodiment 7 of the present invention;

fig. 8 is a block diagram of an intelligent power distribution terminal circuit according to embodiment 8 of the present invention;

fig. 9 is a block diagram of an intelligent power distribution terminal circuit according to embodiment 17 of the present invention;

fig. 10 is a block diagram illustrating a communication connection between the two-type intelligent distribution terminal and another one-type intelligent distribution terminal according to embodiment 17 of the present invention;

fig. 11 is an exploded view of an intelligent power distribution terminal according to embodiments 18-34 of the present invention;

fig. 12 is a block diagram of a first circuit board of an intelligent power distribution terminal circuit according to embodiments 18 to 34 of the present invention;

fig. 13 is a block diagram of a second circuit board of the intelligent power distribution terminal circuit according to embodiments 18 to 34 of the present invention;

fig. 14 is a circuit block diagram of a computing module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention;

fig. 15 is a circuit block diagram of a control output module of the intelligent power distribution terminal circuit according to embodiment 35 of the present invention;

fig. 16 is a circuit block diagram of an electric energy metering interface circuit of a physical interface module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention;

fig. 17 is a circuit block diagram of a protection current-voltage interface circuit of a physical interface module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention;

fig. 18 is a circuit block diagram of a dual power state monitoring circuit of a physical interface module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention;

fig. 19 is a circuit block diagram of a temperature monitoring circuit of a physical interface module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention;

fig. 20 is a circuit block diagram of a general circuit of the intelligent power distribution terminal circuit and the upper communication module according to embodiment 35 of the present invention;

fig. 21 is a circuit block diagram of an expansion circuit of the intelligent power distribution terminal circuit and the upper communication module according to embodiment 35 of the present invention;

fig. 22 is a circuit block diagram of a display communication module of the intelligent power distribution terminal circuit according to embodiment 35 of the present invention;

fig. 23 is a circuit block diagram of a fault arc detection circuit of an additional functional module of the intelligent power distribution terminal circuit of embodiment 35 of the present invention;

fig. 24 is a circuit block diagram of a current transformer fault protection circuit of an additional functional module of the intelligent power distribution terminal circuit according to embodiment 35 of the present invention.

Fig. 25 is a circuit block diagram of a power module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention.

In the figure: 1. first circuit board, 2, second circuit board, 3, connector, 4, external output terminal, 5, intelligent power distribution terminal, 6, intelligent power distribution terminal main part, 7, intelligent power distribution terminal base, 8, buckle, 9, secondary transformer.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The intelligent power distribution terminal comprises an intelligent power distribution terminal circuit, wherein the intelligent power distribution terminal circuit adopts a functional module structure; the intelligent power distribution terminal circuit is arranged on the circuit board; the intelligent power distribution terminal circuit at least comprises a calculation module, a physical quantity interface module and a superior communication module; the physical quantity interface module and the superior communication module are connected with the computing module;

and the computing module is used for collecting input physical quantity data, processing the collected physical quantity data, storing the data and controlling the output.

and the upper communication module comprises a communication interface with the upper level.

The intelligent power distribution terminal circuit also comprises a control output module; the control output module is connected with the calculation module;

and the control output module is used for controlling a shunt release and/or an electric operating mechanism of the circuit breaker.

The intelligent power distribution terminal circuit also comprises a display communication module, and the display communication module is connected with the computing module;

and the display communication module is communicated with the monitoring equipment, acquires and displays data and is communicated with the upper level.

The monitoring equipment comprises other intelligent power distribution terminals without a display communication module, an intelligent lightning protection device, an intelligent water meter, an intelligent gas meter, an intelligent heat meter and ground resistance detection equipment.

The monitoring equipment intelligence includes but is not limited to other intelligent power distribution terminal, intelligent lightning protection device, intelligent water gauge, intelligent gas table, intelligent calorimeter, ground resistance check out test set that do not have the display communication module, all has communication function.

The intelligent power distribution terminal circuit further comprises an additional function module, and the additional function module is connected with the computing module to achieve the extended function of the intelligent power terminal.

The additional functional module comprises a fault arc detection circuit and/or a current transformer fault protection circuit.

The intelligent power distribution terminal circuit further comprises a power supply module, the power supply module is connected with the computing module, power supply conversion is achieved under different power supply voltage conditions, and power supply is provided for the functional module.

The input end of the power supply module is connected to each loop to be tested to obtain electricity or connected to an independent power supply to obtain electricity;

The calculation module comprises an MCU, an EEPROM, a reset unit, a clock unit and a FLASH, and the EEPROM, the reset unit, the clock unit and the FLASH are all electrically connected with the MCU.

The physical quantities include digital quantities, analog quantities, and switching quantities; the physical quantity interface module comprises one or more of an electric energy metering interface circuit, a switching value monitoring circuit, a protection current and voltage interface circuit, a dual-power state monitoring circuit and a temperature monitoring circuit.

The upper communication module comprises a wired communication interface and/or a wireless communication interface; a wired communication interface and/or a wireless communication interface;

preferably, the wireless communication interface comprises a combination of one or more of Wifi, Bluetooth, Zigbee, 2G/3G/4G/5G.

The circuit board comprises a first circuit board and a second circuit board, the first circuit board and the second circuit board are arranged in parallel, and the first circuit board and the second circuit board are connected through a connector;

The intelligent power distribution system is provided with an intelligent power distribution terminal, and the intelligent power distribution terminal is in communication connection with the data processing center through equipment with acquisition and communication functions; the device with collection and communication functions includes a data collector.

When the intelligent power distribution terminal does not have display communication, the intelligent power distribution terminal needs to be in communication connection with the data processing center through the data acquisition unit.

The intelligent power distribution system is provided with an intelligent power distribution terminal, and the intelligent power distribution terminal is in communication connection with the data processing center;

the intelligent power distribution terminal with the display communication module has the functions of communication, acquisition and display and can be directly in communication connection with the data processing center;

specifically, the method comprises the following steps: the intelligent power distribution terminal with the display communication module is communicated with the monitoring equipment, acquires and displays data and is communicated with the data processing center.

The functional modularization method of the intelligent power distribution terminal comprises the following steps:

The model selection method of the intelligent power distribution terminal comprises the following steps:

The step one of selecting the functional module of the intelligent power distribution terminal circuit according to the function specifically comprises the following steps:

The system resources provided by the calculation module in the step two comprise system resources and expansion allowance required by the functional module accounting of the intelligent power distribution terminal circuit;

And in the second step, the system resource comprises at least one of a CPU resource, a storage resource and a peripheral interface.

The function in the first step is realized by one or more functional modules.

The method for expanding the intelligent power distribution terminal selects the functional module to be expanded according to the system resources provided by the computing module of the existing intelligent power distribution terminal circuit, and comprises the following steps:

The step 1 of calculating the residual system resources of the intelligent power distribution terminal circuit calculation module is to specifically determine the residual system resources by deducting the system resources occupied by the existing functional module from the system resources provided by the existing intelligent power distribution terminal circuit calculation module.

In step 2, selecting an extended functional module of the intelligent power distribution terminal circuit according to the surplus system resources and the intended extended function, wherein the method comprises the following steps:

Example 1

the intelligent power distribution terminal comprises an intelligent power distribution terminal circuit, wherein the intelligent power distribution terminal circuit adopts a functional module structure; the intelligent power distribution terminal circuit is arranged on the circuit board; the intelligent power distribution terminal circuit comprises a calculation module, a physical quantity interface module and a superior communication module; the physical quantity interface module and the superior communication module are connected with the computing module;

The computing module, the physical quantity interface module and the superior communication module can be powered by the external power supply module.

The physical quantity interface module of the intelligent power distribution terminal is matched with the superior communication module and the computing module to realize monitoring and communication functions; the operation parameters, states and faults of the system equipment are monitored and measured, so that a user can master the operation conditions of multiple systems or equipment in time.

Different computing modules are adopted to meet different requirements of customers, and other modules matched with each other are configured according to different computing module computing power.

Example 2

the intelligent power distribution terminal is divided into two controllable/uncontrollable series according to whether the control output module is set or not.

The intelligent power distribution terminal circuit has a control output module, belongs to a controllable series, and is electrically connected with a computing module to realize a control function.

The intelligent power distribution terminal comprises an intelligent power distribution terminal circuit, wherein the intelligent power distribution terminal circuit adopts a functional module structure; the intelligent power distribution terminal circuit is arranged on the circuit board; the intelligent power distribution terminal circuit comprises a calculation module, a physical quantity interface module, a superior communication module and a module control output module; the physical quantity interface module is connected with the upper communication module, the control output module and the calculation module;

The physical quantity interface module, the superior communication module, the control output module and the calculation module can be provided by an external power supply module.

And the control output module and the electric operating mechanism control the shunt release and/or the electric operating mechanism of the circuit breaker.

The physical quantity interface module, the superior communication module, the control output module and the calculation module can be powered by the external power supply module.

The physical quantity interface module of the intelligent power distribution terminal is matched with the superior communication module and the computing module to realize monitoring and control functions; the operation parameters, states and faults of system equipment are monitored and measured, so that a user can master the operation conditions of multiple systems or equipment in time; the automatic operation of the system is realized by automatically sending instructions and actions according to the preset operation parameters and states of the system equipment acquired in real time, and local manual and/or remote operation control can be realized.

Example 3

besides the technical scheme of the embodiment 1, the method also comprises the following technical scheme:

the intelligent power distribution terminal circuit further comprises a display communication module, wherein the display communication module is communicated with the monitoring equipment, acquires and displays data and is communicated with the upper level.

The monitoring equipment comprises but not limited to other intelligent power distribution terminals without display through blocks, intelligent lightning protection devices, intelligent water meters, intelligent gas meters, intelligent heat meters and ground resistance detection equipment, and each monitoring equipment has a communication function.

The display communication module has the same or similar realization structure with the upper-level communication module, is provided with a wired communication interface and/or a wireless communication interface, and can realize the communication function with each monitoring device.

The wired communication interface comprises one or more combinations of RS485, CAN, power line carrier and Ethernet; the wireless communication interface comprises one or more of Wifi, Bluetooth, Zigbee, 2G/3G/4G/5G.

The display communication module, the physical quantity interface module, the superior communication module and the calculation module are connected;

the display communication module, the physical quantity interface module, the superior communication module and the calculation module can be powered by the external power supply module.

The display communication module and the physical quantity interface module of the intelligent power distribution terminal are matched with the superior communication module and the calculation module to realize the monitoring function; the operation parameters, states and faults of system equipment are monitored and measured, so that a user can master the operation conditions of multiple systems or equipment in time; and establishing communication with the monitoring equipment, acquiring and displaying data, and communicating with the upper level.

Example 4

besides the technical scheme of the embodiment 2, the method also comprises the following technical scheme:

the intelligent power distribution terminal circuit also comprises a display communication module; and the display communication module is communicated with the monitoring equipment, acquires and displays data and is communicated with the upper level.

The monitoring equipment comprises but not limited to other intelligent power distribution terminals without a display communication module, an intelligent lightning protection device, an intelligent water meter, an intelligent gas meter, an intelligent heat meter and ground resistance detection equipment, and each monitoring equipment has a communication function.

The display communication module is similar to the upper-level communication module in structure, is provided with a wired communication interface and/or a wireless communication interface, and can realize the communication function with each monitoring device.

The display communication module, the physical quantity interface module, the superior communication module, the control output module and the calculation module are connected.

The display communication module, the physical quantity interface module, the superior communication module, the control output module and the calculation module can be powered by the external power supply module.

The display communication module and the physical quantity interface module of the intelligent power distribution terminal are matched with the superior communication module and the calculation module to realize monitoring and control functions; the operation parameters, states and faults of system equipment are monitored and measured, so that a user can master the operation conditions of multiple systems or equipment in time; establishing communication with the monitoring equipment, acquiring and displaying data, and communicating with the upper level; the automatic operation of the system is realized by automatically sending instructions and actions according to the preset operation parameters and states of the system equipment acquired in real time, and local manual and/or remote operation control can be realized.

Example 5

the intelligent power distribution terminal circuit further comprises an additional function module, and the extended function of the intelligent power distribution terminal is achieved.

The additional functional modules include, but are not limited to, a fault arc detection circuit and/or a current transformer fault protection circuit.

The physical quantity interface module is connected with the superior communication module and the additional function module is connected with the calculation module;

the computing module, the physical quantity interface module, the superior communication module and the additional function module can be powered by the external power supply module.

The display communication module and the physical quantity interface module of the intelligent power distribution terminal are matched with the superior communication module and the calculation module to realize the monitoring function; the operation parameters, states and faults of system equipment are monitored and measured, so that a user can master the operation conditions of multiple systems or equipment in time; and establishing communication with the monitoring equipment, acquiring and displaying data, and realizing the extended function of the intelligent terminal by communicating with the upper level.

Example 6

The additional function module, the physical quantity interface module, the superior communication module, the control output module and the calculation module can be provided by an external power supply module.

The additional function module, the physical quantity interface module, the superior communication module, the calculation module and the control output module can be powered by the external power supply module.

The physical quantity interface module of the intelligent power distribution terminal is matched with the superior communication module and the computing module to realize monitoring and control functions;

the operation parameters, states and faults of system equipment are monitored and measured, so that a user can master the operation conditions of multiple systems or equipment in time;

the automatic operation of the system is realized by automatically sending instructions and actions according to preset operation parameters and states of system equipment acquired in real time, and local manual and/or remote operation control can be realized;

acquiring a current signal of a circuit, generating power spectrum data according to the acquired current signal, and determining whether a fault arc occurs according to the variation trend of a power value in a preset frequency range in the power spectrum data;

and detecting and protecting the secondary open circuit state of the current transformer.

Example 7

besides the technical scheme of the embodiment 3, the method also comprises the following technical scheme:

The additional function module, the display communication module, the physical quantity interface module, the superior communication module and the calculation module are connected;

the additional function module, the display communication module, the physical quantity interface module, the superior communication module and the calculation module can be powered by the external power supply module.

The intelligent power distribution terminal comprises an additional function module, a display communication module and a physical quantity interface module, and is matched with a superior communication module and a calculation module to realize a monitoring function;

establishing communication with the monitoring equipment, acquiring and displaying data, and communicating with the upper level;

Example 8

besides the technical scheme of the embodiment 4, the method also comprises the following technical scheme:

The additional function module, the display communication module, the physical quantity interface module, the superior communication module and the control output module are connected with the calculation module.

The additional function module, the display communication module, the physical quantity interface module, the superior communication module, the control output module and the calculation module can be powered by the external power supply module.

The intelligent power distribution terminal comprises an additional function module, a display communication module and a physical quantity interface module, and is matched with a superior communication module, a control output module and a calculation module to realize monitoring and control functions;

the operation parameters, states and faults of system equipment are monitored and measured, so that a user can master the operation conditions of multiple systems or equipment in time; establishing communication with the monitoring equipment, acquiring and displaying data, and communicating with the upper level;

Examples 9 to 17

In addition to the technical solutions of embodiments 1 to 8, the intelligent power distribution terminal circuit further includes a power supply module, which performs power supply conversion under different power supply voltage conditions, provides power supply for the functional module, and correspondingly forms the technical solutions of embodiments 9 to 17.

The intelligent power distribution terminal circuit of the intelligent power distribution terminal comprises one or more combinations of an additional function module, a display communication module, a physical quantity interface module, a superior communication module, a control output module and a calculation module; at least comprises a superior communication module, a control output module, a calculation module and a power supply module.

The additional function module, the display communication module, the physical quantity interface module, the superior communication module, the control output module and the calculation module can be powered by the power supply module and/or the external power supply module.

the intelligent power distribution terminal circuit of the intelligent power distribution terminal comprises a power supply module, an additional function module, a display communication module, a physical quantity interface module, a superior communication module and a calculation module, wherein a plurality of functional modules are matched to realize monitoring, control, protection and management functions;

establishing communication with the monitoring equipment, acquiring and displaying data, and communicating with the upper level; the automatic operation of the system is realized by automatically sending instructions and actions according to preset operation parameters and states of system equipment acquired in real time, and local manual and/or remote operation control can be realized;

the line and equipment parameters are digitally sampled and processed on site, and the fault line and equipment are isolated and the safe operation of the system is guaranteed when the fault occurs and the action is timely performed;

centralized management is carried out on system equipment, system data are comprehensively analyzed, a system safety analysis report is provided for a client, and reasonable suggestions and solutions are provided;

The input end of the power supply module is connected with 220V alternating current and direct current, and the input end of the power supply module can be connected with each loop to be tested to get electricity and can also be connected with other independent power supplies to get electricity. The power module adopts an isolation or independent power supply scheme to output a DC24V power supply (a display screen, external signal input and output and the like), a 5V power supply (used by circuits such as relay control and the like), a 3.3V power supply (used by an MCU and most ICs on a terminal) and an isolation 5V power supply (RS485, CAN and the like).

The intelligent power distribution terminal has the protection and/or early warning function, the input end of the power module of the intelligent power distribution terminal gets power from the independent power supply, and the intelligent power distribution terminal can always normally work even if a loop to be detected is powered off, so that the protection and/or early warning function is not influenced.

Fig. 10 is a block diagram illustrating a communication connection between the two-type intelligent distribution terminal and the one-type intelligent distribution terminal according to embodiment 17 of the present invention. Wherein, two type intelligent power distribution terminals are intelligent power distribution terminals with display communication modules, and one type intelligent power distribution terminal is an intelligent power distribution terminal without display communication modules

The two-type intelligent power distribution terminal is communicated with the one-type intelligent power distribution terminal, acquires and displays data and is communicated with the upper level.

The two-type intelligent power distribution terminal can also be communicated with the monitoring equipment, and can acquire and display data and be communicated with the upper level.

The monitoring equipment comprises other intelligent power distribution terminals, an intelligent lightning protection device, an intelligent water meter, an intelligent gas meter, an intelligent heat meter and grounding resistance detection equipment.

Examples 18 to 34

Fig. 11 is an exploded view of a circuit board of an intelligent power distribution terminal circuit according to embodiments 18-34 of the present invention; fig. 12 is a block diagram of a first circuit board of an intelligent power distribution terminal circuit according to embodiments 18 to 34 of the present invention; fig. 13 is a block diagram of a second circuit board of the intelligent power distribution terminal circuit according to embodiments 18 to 34 of the present invention;

except the embodiments of the embodiments 1 to 17, the technical scheme is as follows:

the circuit board of the intelligent power distribution terminal 5 comprises a first circuit board 1 and a second circuit board 2, the first circuit board 1 and the second circuit board 2 are arranged in parallel, the first circuit board 1 and the second circuit board 2 are connected through a connector 3,

each functional module of the intelligent power distribution terminal circuit is connected with the first circuit board 1 through a connector of a corresponding type.

The second circuit board 2 is provided with an external output terminal 4 and a secondary transformer 9, and the external output terminal 4 and the secondary transformer 9 are adopted to realize pluggable connection and data transmission with an external circuit.

The secondary mutual inductor 9 is connected with the physical quantity interface module, the secondary mutual inductor 9 comprises a current secondary mutual inductor and a voltage secondary mutual inductor, the current secondary mutual inductor is connected with a current sampling calculation unit of the physical quantity interface module, and the voltage secondary mutual inductor is connected with a voltage sampling calculation unit of the physical quantity interface module.

First circuit board 1 sets up in intelligent distribution terminal main part 6, and second circuit board 2 sets up in intelligent distribution terminal base 7, and intelligent distribution terminal main part 6 and intelligent distribution terminal base 7 pass through buckle 8 and connect.

The first circuit board 1 includes a plurality of types of connectors; the functional modules of the intelligent power distribution terminal circuit can be fully or partially cured, soldered or plugged onto the first circuit board 1.

Example 35

The block diagram of the structure of the embodiment 35 is shown in fig. 9; the intelligent power distribution terminal comprises an intelligent power distribution terminal circuit, wherein the intelligent power distribution terminal circuit adopts a functional module structure; the intelligent power distribution terminal circuit is arranged on the circuit board; the circuit board of the intelligent power distribution terminal 5 comprises a first circuit board 1 and a second circuit board 2, the first circuit board 1 and the second circuit board 2 are arranged in parallel, the first circuit board 1 and the second circuit board 2 are connected through a connector 3,

The intelligent power distribution terminal circuit is divided into two controllable/uncontrollable series according to whether a control output module is arranged.

The intelligent power distribution terminal circuit of this implementation has control output module, belongs to controllable series.

The intelligent power distribution terminal circuit comprises a computing module and a control output module, wherein a high-grade computing module is selected to meet the requirements of customers, and matched modules are configured according to computing power of the computing module.

According to the needs of customers, the intelligent power distribution terminal circuit is provided with all designed functions of a physical quantity interface module, a power supply module, a superior communication module, a display communication module and an additional functional module.

The physical quantity interface module, the control output module, the superior communication module, the display communication module and the additional functional module are all electrically connected with the computing module;

the physical quantity interface module, the control output module, the superior communication module, the display communication module, the additional functional module and the calculation module are all electrically connected with the power supply module;

fig. 14 is a circuit block diagram of a computing module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention; and the computing module is mainly used for acquiring input physical quantity data, processing the acquired physical quantity data, storing the data, controlling the output and the like. The calculation module comprises an MCU, an EEPROM, a reset unit, a clock unit and a FLASH, and the EEPROM, the reset unit, the clock unit and the FLASH are all electrically connected with the MCU.

Fig. 15 is a circuit block diagram of a control output module of the intelligent power distribution terminal circuit according to embodiment 35 of the present invention; the control output module controls a shunt release and an electric operating mechanism of the circuit breaker and also comprises a reserved 2-path input and 2-path output.

The circuit scheme is as follows: the electric operating mechanism adopts a relay interlocking circuit for control, adopts an MOS tube for shunt excitation control to output active signals, adopts optical coupling isolation protection for an input function, and adopts a relay passive contact for an output function.

The physical quantity interface module comprises an interface circuit for conditioning signals of input physical quantities such as detected voltage, current, temperature and the like, a digital quantity acquisition/output control circuit and an analog signal output circuit. The signal conditioning is mainly aimed at the collection of analog quantity (voltage, current, temperature, etc.), and in addition, the physical quantity module interface also comprises: a digital quantity acquisition/output control circuit and an analog signal output circuit (such as 4-20 mA).

The physical quantity comprises digital quantity, analog quantity and switching value, and the physical quantity interface module comprises an electric energy metering interface circuit, a switching value monitoring circuit, a protection current and voltage interface circuit, a dual-power state monitoring circuit and a temperature monitoring circuit.

Fig. 16 is a circuit block diagram of an electric energy metering interface circuit of a physical interface module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention; the electric energy metering interface circuit comprises a combination of a voltage sampling calculation unit and a current sampling calculation unit.

(1) Voltage sampling calculation function and current sampling calculation function

The voltage sampling calculation function and the current sampling calculation function are realized by a voltage sampling calculation unit and a current sampling calculation unit;

the voltage sampling meter and the current sampling generally require the precision to reach 0.5 level. The user needs not to sample and calculate the voltage and current data, but to see the display result of the voltage and current data, and other electrical parameters are the same reason. The data collected by the voltage sampling calculation unit and the current sampling calculation unit are displayed on the display communication module, and a user can directly view the data on a display screen of the display communication module.

The voltage sampling and calculating unit also collects phase voltage and line voltage data, and the phase voltage and the line voltage data are also displayed on the display communication module.

(2) Electric power number calculation function

The electrical degree can be obtained by calculating voltage and current parameters sampled by the voltage sampling calculation unit and the current sampling calculation unit.

The electrical degree calculation function generally requires that the precision reaches 0.5 level. The power degree calculation realizes the functions of forward power degree calculation, reverse power degree calculation and four-quadrant reactive power degree calculation, and is used for power metering.

(3) Power calculation function

The power can be obtained by calculating the voltage and current parameters sampled by the voltage sampling calculation unit and the current sampling calculation unit.

The power calculation function generally requires an accuracy of 0.5 level. The power calculation function realizes the functions of forward power calculation, reverse power calculation, active power calculation, reactive power calculation and apparent power calculation.

(4) Power factor calculation function

Common multifunctional meters such as digital current meters and digital voltage meters provide this function. The power can be obtained by calculating the voltage and current parameters sampled by the voltage sampling calculation unit and the current sampling calculation unit.

(5) Phase angle calculation function

The phase angle may be calculated from the power factor.

The switching value monitoring circuit adopts a circuit breaker auxiliary contact to monitor the state of the circuit breaker. The monitoring of the state of the circuit breaker comprises monitoring the opening and closing state and/or monitoring the residual service life of the circuit breaker.

The monitoring of the remaining service life of the circuit breaker is to calculate the service life by monitoring the opening and closing events and corresponding current data.

Wherein, fig. 17 is a circuit block diagram of a protection current-voltage interface circuit of a physical interface module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention; the protection current-voltage interface circuit detects and protects the secondary open circuit state of the current transformer.

The circuit scheme is as follows: the open circuit detection can be only carried out under the condition that the primary side of the mutual inductor is disconnected, and a detection signal is input into the mutual inductor through a relay on the module to detect whether the mutual inductor has the open circuit condition.

Wherein, fig. 18 is a circuit block diagram of a dual power state monitoring circuit of a physical interface module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention;

the dual-power-supply state monitoring circuit is used for monitoring a dual-power-supply state signal output by the ATS equipment. The dual power supply state monitoring circuit is mounted on the second circuit board.

Wherein, fig. 19 is a circuit block diagram of a temperature monitoring circuit of a physical interface module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention; the temperature monitoring circuit realizes the temperature monitoring of cable connectors, busbars, cables, plug-in points and the like.

The upper communication module is a communication interface with the upper computer and is used for realizing the communication and the data reporting with the upper computer; the upper communication module comprises a wired communication interface and/or a wireless communication interface; the wired communication interface comprises one or more of 485, CAN, power carrier and Ethernet; the wireless communication interface comprises one or more of Wifi, Bluetooth, Zigbee, 2G/3G/4G/5G.

Fig. 20 is a circuit block diagram of a general circuit of the intelligent power distribution terminal circuit and the upper communication module according to embodiment 35 of the present invention; the circuit scheme is as follows: the module board carries isolation type RS485, CAN and RS232 which are general circuits; fig. 21 is a circuit block diagram of an expansion circuit of the intelligent power distribution terminal circuit and the upper communication module according to embodiment 35 of the present invention;

and communication modes such as Bluetooth, wifi, 2G/3G/4G and the like are expanded as special circuit modules.

Fig. 22 is a circuit block diagram of a display communication module of an intelligent power distribution terminal circuit according to embodiment 35 of the present invention; and the display communication module is communicated with the monitoring equipment, acquires and displays data and is communicated with the upper level.

The circuit configuration function: collecting a communication function; and the data are collected by communication with equipment such as a power distribution terminal, lightning protection equipment, grounding resistance equipment and the like, and are reported by communication with an upper computer.

The circuit scheme is as follows: the scheme of driving the color display screen/touch panel is adopted by adopting a circuit structure of an ARM core board and a base board.

And a functional module is added to realize the extended function of the intelligent terminal. The additional functional module comprises a fault arc detection circuit and/or a current transformer fault protection circuit.

Fig. 23 is a circuit block diagram of a fault arc detection circuit of an additional functional module of the intelligent power distribution terminal circuit according to embodiment 35 of the present invention; the fault arc detection circuit acquires a current signal of the circuit, generates power spectrum data according to the acquired current signal, and determines whether a fault arc occurs according to the variation trend of the power value in a preset frequency range in the power spectrum data.

Wherein, fig. 24 is a circuit block diagram of a current transformer fault protection circuit of an additional functional module of the intelligent power distribution terminal circuit of embodiment 35 of the present invention.

The current transformer fault protection circuit detects and protects the secondary open circuit state of the current transformer.

Fig. 25 is the circuit block diagram of the power module of the intelligent power distribution terminal circuit of embodiment 35, the power module provides basic power supply for each functional module on the intelligent power distribution terminal, needs to satisfy power conversion under different supply voltage conditions, and satisfies the requirement of terminal circuit long-term reliability operation simultaneously.

The input end of the power supply module is connected with 220V alternating current and direct current, and the input end of the power supply module can be connected with each loop to be tested to get electricity and can also be connected with other independent power supplies to supply power. The power module adopts an isolation or independent power supply scheme to output a DC24V power supply (a display screen, external signal input and output and the like), a 5V power supply (used by circuits such as relay control and the like), a 3.3V power supply (used by an MCU and most ICs on a terminal) and an isolation 5V power supply (RS485, CAN and the like).

Embodiment 35 corresponds to type I-a, which is an advanced controllable intelligent terminal, and can implement all designed functions.

Example 36

The intelligent power distribution terminal comprises an intelligent power distribution terminal circuit, wherein the intelligent power distribution terminal circuit adopts a functional module structure; the intelligent power distribution terminal circuit is arranged on the circuit board; the circuit board of the intelligent power distribution terminal 5 comprises a first circuit board 1 and a second circuit board 2, the first circuit board 1 and the second circuit board 2 are arranged in parallel, the first circuit board 1 and the second circuit board 2 are connected through a connector 3, the first circuit board 1 is provided with a connector, the intelligent power distribution terminal circuit is fixed with the first circuit board 1 through the connector, an external output terminal and a secondary mutual inductor are arranged on the second circuit board 2, and the external output terminal 4 and the secondary mutual inductor 9 are adopted to realize pluggable connection and data transmission with an external circuit. First circuit board 1 sets up in intelligent distribution terminal main part 6, and second circuit board 2 sets up in intelligent distribution terminal base 7, and intelligent distribution terminal main part 6 and intelligent distribution terminal base 7 pass through buckle 8 and connect.

The connectors on the first circuit board 1 are multiple, all functional modules of the intelligent power distribution terminal circuit are connected with the first circuit board through the connectors, and the connectors of different interfaces are selected according to different functional modules.

The functional modules of the intelligent power distribution terminal circuit can be fully or partially cured, soldered or plugged onto the first circuit board 1.

The control output module is divided into two series of controllable/uncontrollable according to whether the control output module is set or not.

The intelligent power distribution terminal circuit comprises a computing module and a control output module, wherein a middle-level computing power computing module is selected to meet the requirements of customers, and matched modules are configured according to computing power of the computing module.

and the computing module is used for collecting input physical quantity data, processing the collected physical quantity data, storing the data and controlling the output. The physical quantity interface module is an interface circuit for conditioning signals of the detected input physical quantity, a digital quantity acquisition/output control circuit and an analog signal output circuit.

And the control output module controls a shunt release and an electric operating mechanism of the circuit breaker.

The physical quantity interface module is an interface circuit for conditioning signals of the detected input physical quantity, a digital quantity acquisition/output control circuit and an analog signal output circuit.

A communication interface with the superior communication module and the upper computer; the upper communication module comprises a wired communication interface and/or a wireless communication interface; the display communication module has the same or similar implementation structure with the upper-level communication module.

The wired communication interface comprises one or more of RS485, CAN, power carrier and Ethernet;

the wireless communication interface comprises one or more of Wifi, Bluetooth, Zigbee, 2G/3G/4G/5G.

And a functional module is added to realize the extended function of the intelligent terminal. The additional functional module employs a fault arc detection circuit.

The power supply module provides basic power supply for each functional module on the intelligent power distribution terminal, needs to meet the requirements of power supply conversion under different power supply voltage conditions, and simultaneously meets the requirement of long-term reliable operation of a terminal circuit.

The circuit block diagram of each functional module of the intelligent power distribution terminal circuit configuration of the embodiment 36 refers to the circuit block diagram of the embodiment 17.

The embodiment 36 corresponds to an I-B type, which is a medium-level controllable intelligent terminal, and can selectively realize the fault arc detection function in an expanded mode.

Example 37

The intelligent power distribution terminal comprises an intelligent power distribution terminal circuit, wherein the intelligent power distribution terminal circuit adopts a functional module structure; the intelligent power distribution terminal circuit is arranged on the circuit board; the circuit board comprises a first circuit board and a second circuit board, the back of the first circuit board is connected with the back of the second circuit board, the first circuit board is provided with a connector, the intelligent power distribution terminal circuit is fixed with the first circuit board through the connector, the second circuit board is provided with an external output terminal and a secondary mutual inductor, and the external output terminal and the secondary mutual inductor are adopted to realize pluggable connection with an external circuit and data transmission.

The intelligent power distribution terminal circuit comprises a calculation module and a control output module, wherein a primary calculation module is selected to meet the requirements of customers, and matched modules are configured according to the calculation of the calculation module.

The physical quantity interface module, the control output module, the superior communication module and the display communication module are all electrically connected with the computing module;

the physical quantity interface module, the control output module, the superior communication module, the display communication module and the calculation module are all electrically connected with the power supply module;

The physical quantity interface module comprises a protection current and voltage interface circuit, a dual-power state monitoring circuit and a temperature monitoring circuit.

The wired communication interface comprises one or more of 485, CAN, power carrier and Ethernet;

And establishing communication with the monitoring equipment, acquiring and displaying data, and communicating with the upper level.

The circuit block diagram of each functional module of the intelligent power distribution terminal circuit configuration of embodiment 37 is referred to the circuit block diagram of fig. 9.

Example 37 corresponds to type I-C, which is a primary controllable smart terminal.

Example 38

Compared with the embodiment 35, the device has no control output module and belongs to an uncontrollable series.

Example 38 corresponds to type II-A, which is an advanced uncontrolled smart terminal.

Example 39

Compared with the embodiment 36, the device has no control output module and belongs to an uncontrollable series.

Example 21 corresponds to type II-B, which is a medium-sized uncontrolled intelligent terminal.

Example 40

Compared with the embodiment 37, the device has no control output module and belongs to an uncontrollable series.

Example 22 corresponds to type II-C, which is a primary uncontrolled smart end product.

EXAMPLE 41

s1: selecting an intelligent power distribution terminal circuit calculation module according to system resources required to be occupied by the to-be-selected functional module;

s2: and selecting matched functional modules according to the system resources provided by the selected intelligent power distribution terminal circuit computing module, and dividing the model products of different grades.

The system resources include at least one of CPU resources, memory resources, and peripheral interfaces including circuitry and hardware connection interfaces. The system resources include three types, but not limited to, CPU resources, memory resources, and peripheral interfaces, such as power supply capacity and communication bandwidth.

Wherein, the step of selecting the matched functional module according to the system resource provided by the selected intelligent power distribution terminal circuit computing module in the step S2 specifically comprises the following steps

The modularization method of the intelligent power distribution terminal divides products into two major series of controllable/uncontrollable products by controlling whether an output circuit is included, different calculation module design schemes realize corresponding functional requirements according to different calculation forces, and the corresponding functional requirements are realized by selecting functional modules, so that model products with different grades are divided.

Example 42

The intelligent power distribution terminal circuit calculation module is selected according to the fact that the to-be-selected functional module needs to occupy system resources, and existing calculation module products in the market are classified into different grades according to performance parameters.

Example 43

wherein, in the step S1, an intelligent power distribution terminal circuit calculation module is selected according to the system resources required to be occupied, specifically the following steps:

sa: dividing the calculation module into multiple grades;

sb: and selecting the grade calculation module according to the condition that the parameters of the system resources required to be occupied fall within the parameter range of the specific certain grade calculation module, and the specific CPU resources, storage resources and peripheral interface parameters are required to be met.

The various grades of the calculation module in the Sa are divided according to the function demand distribution of the statistical customer, and the combination distribution of the functional modules for realizing the function demand is determined, so that the calculation module is determined to provide system resource parameters, that is, the calculation module parameter range.

S2: selecting a matched functional module according to the system resources provided by the selected intelligent power distribution terminal circuit calculation module;

And SA: judging whether a control output module is selected according to whether a shunt release for controlling the circuit breaker and the control output function of the electric operating mechanism exist in the function requirements;

The specific process of step SB is as follows: comparing the amount of system resources required by the operation of the to-be-selected functional module with the amount of system resources provided by the calculation module; if the amount of system resources required by the operation of the to-be-selected functional module is larger than the amount of resources provided by the computing module system, the to-be-selected functional module cannot operate in the computing module, and the to-be-selected functional module cannot be successfully selected; if the amount of system resources required by the operation of the to-be-selected functional module is less than the amount of system resources provided by the calculation module, the to-be-selected functional module can operate in the calculation module, and the to-be-selected functional module can be successfully selected.

And when the current residual quantity of at least one of the CPU resource, the storage resource and the peripheral interface resource of the system resource provided by the computing module is less than the occupation quantity of the to-be-selected functionalized module on at least one of the CPU resource, the storage resource and the peripheral interface resource, the functionalized module cannot be successfully selected. Specifically, the CPU resources and the memory resources are calculated by percentage, and the peripheral interface resources are calculated by the number of interfaces, which is different from the calculation method of the CPU resources and the memory resources. If the peripheral interface resources are occupied and no redundant peripheral interface resources of proper type exist in the system, the occupied amount of the peripheral interface resources is considered to be 100%, and the residual amount is considered to be 0.

Specifically, the method comprises the following steps: 1. selecting an intelligent power distribution terminal circuit calculation module according to system resources required to be occupied, and dividing the calculation module into 3 grades, namely a primary grade, a middle grade and a high grade; selecting a high-level computing module;

2. listing the functional requirements of the intelligent terminal in a general power distribution application scene;

for example, monitoring electrical parameter data functional requirements:

(1) two functions of ' voltage sampling calculation ' and ' current sampling calculation

The voltage sampling calculation function and the current sampling calculation function are realized by the existing voltage sampling calculation unit and the current sampling calculation unit; the voltage sampling meter and the current sampling generally require the precision to reach 0.5 level. The user needs not to sample and calculate the voltage and current data, but to see the display result of the voltage and current data, and other electrical parameters are the same reason. The data collected by the voltage sampling calculation unit and the current sampling calculation unit are displayed on the display communication module, and a user can directly view the data on a display screen of the display communication module.

(2) Function of calculating electric power number

The electrical degree can be obtained by calculating voltage and current parameters sampled by the voltage sampling calculation unit and the current sampling calculation unit. The electrical degree calculation function generally requires that the precision reaches 0.5 level. The power degree calculation realizes the functions of forward power degree calculation, reverse power degree calculation and four-quadrant reactive power degree calculation, and is used for power metering.

(3) Power calculation function

The power can be obtained by calculating the voltage and current parameters sampled by the voltage sampling calculation unit and the current sampling calculation unit. The power calculation function generally requires an accuracy of 0.5 level. The power calculation function realizes the functions of forward power calculation, reverse power calculation, active power calculation, reactive power calculation and apparent power calculation.

(4) Power factor calculation function

(4) Phase angle calculation function

(5) The phase angle may be calculated from the power factor.

For example monitoring abnormal data

(1) Fault arc monitoring function

The method comprises the steps of acquiring a current signal of a circuit through a fault arc detection circuit, generating power spectrum data according to the acquired current signal, determining whether a fault arc occurs according to the variation trend of a power value in a preset frequency range in the power spectrum data, and realizing the fault arc monitoring function through a fault arc detection circuit of an additional functional module.

(2) The temperature monitoring function is realized through a temperature monitoring circuit of the physical interface module, and the temperature monitoring of a cable joint, a busbar, a cable, a plug-in point and the like is realized.

E.g. presentation of interactive changes

(1) The circuit breaker state monitoring function, the circuit breaker state monitoring including monitoring divide-shut brake state, to the monitoring of circuit breaker remaining life. The method is realized by a switching value monitoring unit.

(2) The dual-power state monitoring function is realized by a dual-power state monitoring circuit of the physical interface module; the dual-power-supply state monitoring circuit is used for monitoring a dual-power-supply state signal output by the ATS equipment. The dual power supply state monitoring circuit is mounted on the second circuit board.

Such as display communication functions

The display communication function display communication module is used for displaying real-time data of the intelligent power distribution terminal and other equipment, and has a circuit configuration function and a collection communication function;

the circuit configuration function: configuring a terminal starting function item; collecting a communication function; and the data are collected by communication with equipment such as a power distribution terminal, lightning protection equipment, grounding resistance equipment and the like, and are reported by communication with an upper computer. )

For example, communication function with upper layer

CAN, RS485, Ethernet and other basic communication modes

The customer has a demand for this function. The terminal is already implemented.

Communication modes of power carrier, WIFI, remote wireless network and the like

The communication function with the upper level is realized through the communication module with the upper level, and the communication module is a communication interface with the upper computer and is used for communicating with the upper computer to report data; the upper communication module comprises a wired communication interface and/or a wireless communication interface; the wired communication interface comprises one or more of 485, CAN, power carrier and Ethernet; the wireless communication interface comprises one or more of Wifi, Bluetooth, Zigbee, 2G/3G/4G/5G. Selecting the screen type: the terminal is preferably provided with a color touch screen, a monochrome screen or no screen as an alternative to suit the user's needs in particular situations.

The circuit scheme is as follows: and the module board carries isolated RS485, CAN and RS232 which are general circuits.

Fault protection function for example of current transformer

The secondary side open circuit state of the current transformer is monitored and protected, and a fault protection circuit of the current transformer is added with a functional module. The current transformer fault protection circuit detects and protects the secondary open circuit state of the current transformer.

3. Judging and selecting a control output module according to the control output function of a shunt release and an electric operating mechanism which have control circuit breakers in the function requirements;

4. all functional modules of the intelligent power distribution terminal circuit, such as a physical quantity interface module, a control output module, a superior communication module, a display communication module and an additional functional module, are selected according to system resources provided by the advanced computing module and requirements for meeting all functional requirements, and the specific functional module composition is shown in embodiment 35. The product is I-A type. The I-A type is a high-grade controllable intelligent terminal and can realize the functions of all designs.

Similarly, the intermediate-level calculation module is selected, the control output module is judged and selected according to the control output function of the shunt release and the electric operating mechanism which have the function requirements for controlling the circuit breaker, and the functional module which is correspondingly realized and is specifically the corresponding product I-B type needs to be selected according to other functions except the functions of electric parameter data statistics and harmonic statistics. The I-B type is a middle-level controllable intelligent terminal and can realize all designed functions except the functions of electrical parameter data statistics and harmonic statistics.

Similarly, the primary computing module is selected, the control output module is judged and selected according to the control output function of the shunt release and the electric operating mechanism of the control circuit breaker in the function requirement, and the functional module which is correspondingly realized and is specifically the corresponding product I-C type needs to be selected according to other functions except the high-level protection function such as fault arc detection and the like, the electric parameter data statistics function and the harmonic wave statistics function. The I-C type is a primary controllable intelligent terminal, and can realize the functions of basic electric parameter monitoring, protection and control functions except for high-level protection functions such as fault arc detection and the like and functions without electric parameter data statistics and harmonic statistics.

Similarly, system resources and requirements provided by the advanced computing module are selected to meet all functional requirements from A to L except for the control output function of a shunt release without a control circuit breaker and a control output function of an electric operating mechanism, and a functional module of the intelligent power distribution terminal circuit, specifically a corresponding product II-A type, is selected. The II-A type is a high-grade uncontrollable intelligent terminal and can realize all designed functions except tripping protection and circuit breaker opening and closing control.

Similarly, the intermediate-level calculation module is selected, the control output module is not selected according to the control output function of the shunt release and the electric operating mechanism which do not control the circuit breaker in the function requirement, and other functions except the electric parameter data statistics and harmonic statistics are required to select the functional module which is correspondingly realized, namely the product II-B type which is specifically corresponding. The II-B type is a middle-level uncontrollable intelligent terminal and can realize all designed functions except the functions of electric parameter data statistics and harmonic wave statistics.

Similarly, the primary calculation module is selected, the control output module is not selected according to the control output function of the shunt release and the electric operating mechanism which do not control the circuit breaker in the function requirement, and other functions except the high-level protection function such as fault arc detection, the electric parameter data statistics function and the harmonic statistics function are not required, so that the functional module which is correspondingly realized, namely the corresponding product II-C type, is selected. The II-C type is a primary controllable intelligent terminal, and can realize the functions of basic electric parameter monitoring, protection and control functions except for high-level protection functions such as fault arc detection and the like and without the functions of electric parameter data statistics and harmonic statistics.

In summary, the modularization method of the intelligent power distribution terminal divides products into two major series of controllable/uncontrollable products by controlling whether the output circuit is included, different design schemes of the calculation module realize corresponding functional requirements according to different calculation forces, and the corresponding functional requirements are realized by selecting the functional module, so that model products with different grades are divided.

Example 44

The intelligent power distribution system is provided with an intelligent power distribution terminal.

The intelligent power distribution terminal is in communication connection with the data processing center through equipment with acquisition and communication functions; the device with the collection and communication functions comprises a data collector.

In this embodiment, the intelligent power distribution terminal does not have display communication, and is in communication connection with the data processing center through the data acquisition unit.

Example 45

Example 46

Example 47

the method comprises the following steps: selecting a functional module of the intelligent power distribution terminal circuit according to the function; the function in the first step is realized by one or more functional modules.

Wherein, the step one selects the functional module of the intelligent power distribution terminal circuit according to the function specifically comprises the following steps:

The system resources provided by the computing module in the step two comprise system resources and expansion allowance needed by the functional module accounting of the intelligent power distribution terminal circuit;

The sum of the system resource amount required by the operation of the selected functional module is compared with the system resource surplus amount provided by the calculation module to be selected; if the total amount of the selected functional modules in operation needs less system resources than the resources provided by the selected computing module system, the selected functional modules cannot be operated in the selected computing modules, and the computing modules cannot be selected; if the amount of system resources required by the selected functional module in operation is less than the amount of system resources provided by the selected computing module, the selected functional module can be operated in the selected computing module, and the computing module can be selected.

When the selected functional module continues to select the functional module, comparing the sum of the required system resource amount of the selected former N functional module and the continuously selected N +1 th functional module with the system resource amount provided by the calculation module to be selected; the above comparison process is repeated.

And when at least one of the CPU resource, the storage resource and the peripheral interface resource of the computing module is smaller than the occupation amount of the selected functional module on at least one of the CPU resource, the storage resource and the peripheral interface resource, the computing module cannot be successfully selected.

When the CPU resource, the storage resource and the peripheral interface resource of the computing module are all larger than the CPU resource, the storage resource and the peripheral interface resource of the selected functional module, the computing module can be selected.

Example 48

1. the shunt release and the electric operating mechanism which are used for controlling the circuit breaker are provided with a function judgment and selection control output module according to the function requirements;

2. all functional modules of the intelligent power distribution terminal circuit need to be selected to meet all functional requirements from A to L.

3. And (4) accounting the required system resources according to all the functional modules of the intelligent power distribution terminal circuit, and selecting a high-grade computing module according to the required system resources. I.e. the specific corresponding product type I-a. The I-A type is a high-grade controllable intelligent terminal and can realize the functions of all designs.

And in the same way, the model selection of other intelligent power distribution terminals can be completed.

Example 49

Example 50

Wherein, the system resource in step 1 includes at least one of CPU resource, storage resource and peripheral interface.

Wherein, the step 2 of selecting the extended functional module of the intelligent power distribution terminal circuit according to the surplus system resources and the quasi-extended function comprises the following steps:

and B: multiple functional modules for expanding intelligent power distribution terminal circuit according to multiple expanded function requirements

The method comprises the following steps that 1, the selected functional module is deducted from the system resource provided by the computing module to account for the surplus system resource of the computing module; if the sum of the quasi-expansion functional module and the selected functional module needs less system resources when in operation than the resources provided by the selected computing module system, the quasi-expansion functional module cannot be operated in the selected computing module, and the quasi-expansion functional module cannot be selected; if the quantity of system resources required by the operation of the quasi-expansion functional module and the selected functional module is less than the quantity of the system resources provided by the selected computing module, the quasi-expansion functional module can be operated in the selected computing module, and the quasi-expansion functional module can be selected.

And when at least one of the CPU resource, the storage resource and the peripheral interface surplus system resource of the computing module is less than the occupation amount of the to-be-expanded functional module on at least one of the CPU resource, the storage resource and the peripheral interface resource, the to-be-expanded functional module cannot be selected successfully.

When the CPU resource, the storage resource and the residual system resource of the peripheral interface of the computing module are all larger than the CPU resource, the storage resource and the peripheral interface resource of the to-be-expanded functional module, the computing module can be selected.

Compared with the prior art, the design is reasonable, and the control output module is divided into two large series of controllable/uncontrollable according to whether the control output module is arranged or not; the intelligent power distribution terminal circuit adopts different calculation modules, and modules matched with functional requirements are arranged according to different calculation forces of the calculation modules, so that different grades of model products are divided; the circuit normalization is realized according to functions to form a modular structure, different requirements of customers are met by applying a model selection method and an expansion method of the intelligent power distribution terminal, the design and configuration are reasonable, good performance is presented in practical application, and the best use is achieved.

The above embodiments are only examples of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The intelligent power distribution terminal comprises an intelligent power distribution terminal circuit and is characterized in that the intelligent power distribution terminal circuit adopts a functional module structure; the intelligent power distribution terminal circuit is arranged on the circuit board; the intelligent power distribution terminal circuit at least comprises a computing module, a physical quantity interface module and a superior communication module; the physical quantity interface module and the superior communication module are connected with the computing module;

the computing module is used for collecting input physical quantity data, processing the collected physical quantity data, storing the data and controlling the output;

2. The intelligent power distribution terminal of claim 1, wherein the intelligent power distribution terminal circuit further comprises a control output module; the control output module is connected with the computing module;

3. The intelligent power distribution terminal of claim 1 or 2, wherein the intelligent power distribution terminal circuit further comprises a display communication module, the display communication module being connected to the computation module;

the display communication module establishes communication with the monitoring equipment, acquires and displays data and communicates with the upper level;

4. The intelligent power distribution terminal of claim 3, wherein the intelligent power distribution terminal circuit further comprises an additional function module, and the additional function module is connected with the computing module to realize the extended function of the intelligent power distribution terminal;

5. The intelligent power distribution terminal of claim 1, 2 or 4, wherein the intelligent power distribution terminal circuit further comprises a power module, the power module is connected with the computing module, and is used for performing power conversion under different power supply voltage conditions to provide power supply for the functional module;

6. The intelligent power distribution terminal of claim 1 or 2, wherein the computing module comprises an MCU, an EEPROM, a reset unit, a clock unit and a FLASH, and the EEPROM, the reset unit, the clock unit and the FLASH are all electrically connected with the MCU.

7. The intelligent power distribution terminal according to claim 1 or 2, wherein the physical quantities include digital quantities, analog quantities, and switching quantities; the physical quantity interface module comprises one or more of an electric energy metering interface circuit, a switching value monitoring circuit, a protection current and voltage interface circuit, a dual-power state monitoring circuit and a temperature monitoring circuit.

8. The intelligent power distribution terminal of claim 4, wherein the communication module with the upper level comprises a wired communication interface and/or a wireless communication interface; the display communication module is also provided with a wired communication interface and/or a wireless communication interface;

the wireless communication interface comprises one or more of Wifi, Bluetooth, Zigbee and 2G/3G/4G/5G in combination.

9. The intelligent power distribution terminal of claim 1 or 2, wherein the circuit boards comprise a first circuit board and a second circuit board, the first circuit board and the second circuit board being arranged in parallel, the first circuit board and the second circuit board being connected by a connector;

10. The intelligent power distribution system is characterized in that the intelligent power distribution system is provided with the intelligent power distribution terminal as claimed in claim 1 or 2, and the intelligent power distribution terminal is in communication connection with the data processing center through equipment with acquisition and communication functions; the device with the collection and communication functions comprises a data collector.

11. An intelligent power distribution system, characterized by having an intelligent power distribution terminal according to any one of claims 3-9, the intelligent power distribution terminal being communicatively connected to a data processing center.