CN108919714A - A kind of control method and system of the external on-load switch of electric energy meter - Google Patents
A kind of control method and system of the external on-load switch of electric energy meter Download PDFInfo
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- CN108919714A CN108919714A CN201810777512.7A CN201810777512A CN108919714A CN 108919714 A CN108919714 A CN 108919714A CN 201810777512 A CN201810777512 A CN 201810777512A CN 108919714 A CN108919714 A CN 108919714A
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- load switch
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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Abstract
The present invention relates to the control methods and system of a kind of external on-load switch of electric energy meter, are related to intelligent switch field, including：Wireless communication module, microprocessor, switching off/on device and voltage sample module, wherein；Wireless communication module is used to obtain the switching on signal of electric energy meter transmission；Microprocessor executes operational order to switching off/on device for handling switching on signal, and based on processing result；Switching off/on device is used to execute corresponding switching on operation based on operational order；Voltage sample module is used to acquire the voltage value at external load switch wire-outlet end.The present invention solves the technical issues of ammeter capable of being blocked to export switching on signal to external on-load switch by way of switching on control signal wire and feedback signal line is truncated existing for the external on-load switch of existing electric energy meter.
Description
Technical field
The present invention relates to intelligent switch technology fields, more particularly, to a kind of control method of the external on-load switch of electric energy meter
And system.
Background technique
Electric energy meter must not exceed 60A using maximum current when built-in external on-load switch, when electric current exceeds this current value,
Electric energy meter should use external on-load switch.Current external on-load switch electric energy meter controls external switch drawing using mode of connection
Lock：Wiring and external on-load switch input terminal phase are drawn from electric energy meter tripping terminal 5 and 6 (three-phase electric energy meter is 13,14 and 15)
Connection, a pair of (three-phase electric energy meter is 2 groups) passive nonpolarity switch control signal of output control external on-load switch.It should
The drawing that control signal wire and feedback signal line can block ammeter to export to external on-load switch need to be only truncated in connection type user
Switching signal.
Summary of the invention
In view of this, the object of the present invention is to provide the control method and system of a kind of external on-load switch of electric energy meter,
By solve existing for the external on-load switch of existing electric energy meter can by truncation switching on signal in a manner of come block ammeter to
The technical issues of external on-load switch output switching on signal, so that reach reduces the wind that switching on signal is truncated from the root
Danger.
In a first aspect, the embodiment of the invention provides a kind of control systems of the external on-load switch of electric energy meter, including：Wirelessly
Communication module, microprocessor, switching off/on device and voltage sample module, wherein the wireless communication module and the micro process
Device is connected, and the microprocessor is connected with the input terminal of the switching off/on device, the output end of the switching off/on device with
Load is connected, and the voltage sample module is connected with the external load switch wire-outlet end；The wireless communication module is used
In the switching on signal for obtaining electric energy meter transmission；The microprocessor is based on for handling the switching on signal
Processing result sends to switching off/on device and executes operational order；The switching off/on device is used to execute based on operational order corresponding
Switching on operation；The voltage sample module is used to acquire the voltage value at the external load switch wire-outlet end.
Further, further include：Power module, the input terminal of the power module and the electric energy meter voltage wiring terminal
It is connected, the output end of the power module is connected with the input terminal of the wireless communication module and the microprocessor respectively, institute
Power module is stated for providing power supply for the external on-load switch control system of electric energy meter.
Further, the wireless communication module includes following any：ZigBee communication module, WiFi communication module,
LoRa communication module, Bluetooth wireless communication module.
Further, the microprocessor is also used to：After executing operational order to the switching off/on device, it is based on institute
The operating result for stating switching off/on device returns to operation mark to electric energy meter, wherein the operation mark is for reflecting the division
Brake gear executes the executive condition of the switching on operation.
Wherein, electric energy meter sends switching on operational order to external on-load switch, if microprocessor in external on-load switch
Operational order is received, but not to switching off/on device executing instruction operations, returns to the first operation mark (01) to electric energy meter；When micro-
Processor receives operational order, but executes operation failure to switching off/on device, returns to the second operation mark (02) to electric energy meter；
When microprocessor receives operational order and operates successfully to switching off/on device execution, to electric energy meter return third operation mark
(03)。
Further, the microprocessor is also used to：Switching signal has not been obtained in the wireless communication module, and is examining
The external load switch wire-outlet end measured there are in the case where voltage, judge to the closing operation of the switching off/on device whether be
Valid operation；If it is judged that not being then to execute operation of operating a switch to the switching off/on device.
Second aspect, the embodiment of the invention provides a kind of control methods of the external on-load switch of electric energy meter, are applied to upper
The control system of the external on-load switch of electric energy meter is stated, including：Obtain the switching on signal that electric energy meter is sent；The switching on is believed
It number is handled, and the switching off/on device based on processing result into the control system of the external on-load switch of the electric energy meter is sent
Operational order is executed, so that the switching off/on device is based on operational order and executes corresponding switching on operation.
Further, the method also includes：After the switching off/on device executes operational order, microprocessor is based on
The operating result of the switching off/on device returns to operation mark to electric energy meter, wherein the operation mark is for reflecting described point
Closing device executes the executive condition of the switching on operation.
Further, the method also includes：If getting what the electric energy meter was sent in the first preset time period
Heartbeat frame then counts the sum of the heartbeat frame, and in the case where the heartbeat sum is greater than the second preset threshold, determines institute
The communication connection stated between electric energy meter and the control system of the external on-load switch of the electric energy meter is normal；If when second is default
Between heartbeat frame has not been obtained in section, and the external on-load switch is in state of operating a switch, then it is extensive to control the external on-load switch
U-shaped brake state.
Further, the method also includes：The switching on signal is having not been obtained, and described external what is detected
In the case where the voltage of load switch wire-outlet end, judge whether the closing operation to the switching off/on device is valid operation；If
Judge it is not that operation of operating a switch then is executed to the switching off/on device.
As can be seen from the above description, for the connection type between existing external on-load switch and electric energy meter, user is only
The switching on signal that control signal wire and feedback signal line can block ammeter to export to external on-load switch need to be truncated.For this
Problem provides the control method and system of a kind of external on-load switch of electric energy meter, specifically includes in the present embodiment：Pass through
Wireless communication module obtains the switching on signal that electric energy meter is sent, and is handled by microprocessor switching on signal, and base
It is sent in processing result to switching off/on device and executes operational order, so that switching off/on device is based on operational order and executes corresponding draw
Closing operation.By above-mentioned processing mode, the risk that switching on signal is truncated can be reduced from the root, it is existing to solve
Existing for the external on-load switch of electric energy meter electricity can be blocked in such a way that truncation switching on controls signal and feedback signal line
The technical issues of table is to external on-load switch output switching on signal.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of external on-load switch system schematic of electric energy meter according to an embodiment of the present invention；
Fig. 2 is the external on-load switch system schematic of another optional electric energy meter according to an embodiment of the present invention；
Fig. 3 is a kind of flow chart of the control method of the external on-load switch of electric energy meter according to an embodiment of the present invention；
Fig. 4 is a switching on operation stream according to a kind of optionally external on-load switch of electric energy meter of the embodiment of the present invention
Journey；
Fig. 5 is a kind of optionally external on-load switch of electric energy meter according to the embodiment of the present invention to external forced closing operation
The judgment method of legitimacy.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment one：
Fig. 1 is a kind of control system schematic diagram of the external on-load switch of electric energy meter according to an embodiment of the present invention, such as Fig. 1 institute
Show, the control system of the external on-load switch of the electric energy meter includes：Wireless communication module 10, microprocessor 20, switching off/on device 30
With voltage sample module 40.
As shown in Figure 1, wireless communication module 10 is connected with the microprocessor 20, the output end of the microprocessor 20
It is connected with the input terminal of the switching off/on device 30, the output end of the switching off/on device 30 is connected with load, the electricity
Pressure sampling module 40 is connected with the external load switch wire-outlet end.
Specifically, the wireless communication module 10 is used to obtain the switching on signal of electric energy meter transmission；
The microprocessor 20 is based on processing result to switching off/on device for handling the switching on signal
It sends and executes operational order；
The switching off/on device 30 is used to execute corresponding switching on operation based on operational order；
The voltage sample module 40 is used to acquire the voltage value of the external on-load switch.
As can be seen from the above description, for the connection type between existing external on-load switch and electric energy meter, user is only
The switching on signal that control signal wire and feedback signal line can block ammeter to export to external on-load switch need to be truncated.For this
Problem provides the control method and system of a kind of external on-load switch of electric energy meter, specifically includes in the present embodiment：Pass through
Wireless communication module obtains the switching on signal that electric energy meter is sent, and is handled by microprocessor switching on signal, and base
It is sent in processing result to switching off/on device and executes operational order, so that switching off/on device is based on operational order and executes corresponding draw
Closing operation.By above-mentioned processing mode, the risk that switching on signal is truncated can be reduced from the root, it is existing to solve
It can be blocked by way of truncation switching on control signal wire and feedback signal line existing for the external on-load switch of electric energy meter
The technical issues of ammeter is to external on-load switch output switching on signal.
In the present embodiment one optional embodiment, as shown in Fig. 2, the system further includes：Power module 50 and outer
Enclose circuit 60.
As shown in Fig. 2, the input terminal of power module 50 is connected with the electric energy meter voltage wiring terminal, the power module
50 output end is connected with the input terminal of the wireless communication module 10 and the microprocessor 20 respectively, the power module 50
For providing power supply for the external on-load switch control system of electric energy meter.In embodiments of the present invention, peripheral circuit 60 provides any
The optional circuit connecting mode of kind, the connection type meet with peripheral circuit connection type required for upper module.
In the present embodiment, power module 50 is capable of providing following power supply：5V power supply, 12V power supply and 20V power supply, at this
In embodiment, it is not specifically limited.
In the present embodiment one optional embodiment, above-mentioned wireless communication module 20 includes following any：
ZigBee communication module, WiFi communication module, LoRa communication module, bluetooth communication.
As can be seen from the above description, in an optional embodiment of the present embodiment, firstly, module by wireless communication
It obtains the switching on signal that electric energy meter is sent then to handle switching on signal by microprocessor, and based on processing knot
Fruit sends to switching off/on device and executes operational order, so that switching off/on device is based on operational order and executes corresponding switching on behaviour
Make.After the switching off/on device executes operational order, the operating result based on the switching off/on device is returned to electric energy meter
Operation mark, wherein the operation mark is used to reflect that the switching off/on device to execute the executive condition of the switching on operation.
Such as：Electric energy meter sends switching on operational order to external on-load switch, if microprocessor in external on-load switch
Operational order is received, but not to switching off/on device executing instruction operations, returns to the first operation mark (01) to electric energy meter；When micro-
Processor receives operational order, but executes operation failure to switching off/on device, returns to the second operation mark (02) to electric energy meter；
When microprocessor receives operational order and operates successfully to switching off/on device execution, to electric energy meter return third operation mark
(03)。
In an optional embodiment of the present embodiment, specifically, in the present embodiment, firstly, by wireless communication
Module obtains the switching on signal that electric energy meter is sent and is then handled by microprocessor switching on signal.To drawing
After lock signal is handled, then the divide-shut brake based on processing result into the control system of the external on-load switch of the electric energy meter
Device, which is sent, executes operational order.After sending operational order to the switching off/on device, based on the switching off/on device
Operating result returns to operation mark to electric energy meter, wherein the operation mark is for reflecting described in the switching off/on device execution
The executive condition of switching on operation.
In an optional embodiment of the present embodiment, above-mentioned microprocessor is also used to：In the wireless communication module
Switching signal has not been obtained, and in the case where the load voltage detected is not zero, judges the conjunction to the switching off/on device
Whether lock operation is valid operation；If it is judged that not being then to execute operation of operating a switch to the switching off/on device.
As can be seen from the above description, in the present embodiment, microprocessor passes through in the case where switching signal has not been obtained
In the case that voltage sample module collects load voltage.Microprocessor may determine that current time to the combined floodgate of switching off/on device
Whether operation is valid operation.If microprocessor judges not instead of valid operation, illegal operation, then to switching off/on device
Execution is operated a switch operation.
In the present embodiment, using above-mentioned processing mode, external on-load switch is enabled to be forced under the state of operating a switch
When combined floodgate, microprocessor, which detects, voltage in route, then carries out operation of operating a switch herein, and carry out active reporting.To avoid outer
Switching on operation can not be carried out by setting in the case that the connecting line between on-load switch and electric energy meter tripping terminal is maliciously disconnected.
As can be seen from the above description, in the present embodiment, between external on-load switch and electric energy meter tripping terminal
The case where control signal wire and feedback signal line are truncated carries out the transmission of switching on data command, nothing using communication
Line communication mode includes but is not limited to Zigbee wireless communication, WiFi wireless communication, LoRa wireless communication, bluetooth etc..
When external on-load switch is forced to close a floodgate under the state of operating a switch, microprocessor, which detects, voltage in route, then exists
This carries out operation of operating a switch, and carries out active reporting.
External on-load switch of the invention and intelligent electric energy meter are to match, and when communication need to carry out two-way authentication, are communicated
Data are encrypted, and prevent external signal malicious attack.Encryption of communicated data encrypts using ESAM or passes through software realization
Encryption.
It should be noted that in the present embodiment, the wireless communication connection established between electric energy meter and external on-load switch
It is not to always exist data interaction, in prolonged no data interaction time section, interaction both sides are likely to occur crash, fall
The case where electricity, abnormal restarting.After these are happened, the case where another party of connection is not aware that opposite end, it cannot carry out in time
Prompt influences the effect communicated next time, is not able to satisfy the requirement of real-time.Based on this, in the present embodiment, in communication mechanism
Middle increase heartbeat mechanism, connection both sides send the number (can set) of the heartbeat of setting within the specific time, and other side is allowed to know certainly
Oneself is online, to ensure that the validity linked, detailed process are described as follows：
Heartbeat is sent mutually between electric energy meter and external on-load switch, for example, electric energy meter is born every preset time to external
Lotus switch sends heartbeat, and external on-load switch sends heartbeat to electric energy meter every preset time.Electric energy meter and external load are opened
It closes after the heartbeat for getting both sides' transmission, it can judge whether opposite end is online based on heartbeat sum.
For example, external on-load switch obtains the heartbeat sum that electric energy meter is sent in the first preset time period；It is total in heartbeat
In the case that number is greater than the second preset threshold, external on-load switch determines the control of electric energy meter Yu the external on-load switch of the electric energy meter
Connection between system processed is normal.
Embodiment two：
According to embodiments of the present invention, a kind of control method of external on-load switch of electric energy meter is additionally provided, needs to illustrate
It is that step shown in the flowchart of the accompanying drawings can execute in a computer system such as a set of computer executable instructions,
Also, although logical order is shown in flow charts, and it in some cases, can be to be different from sequence execution herein
Shown or described step.
Fig. 3 is a kind of flow chart of the control method of the external on-load switch of electric energy meter according to an embodiment of the present invention, application
The control system of the external on-load switch of the electric energy meter described in above-described embodiment one, as shown in figure 3, the control method includes
Following steps：
Step S302 obtains the switching on signal that electric energy meter is sent；
Step S304 handles the switching on signal；
Step S306, the switching off/on device based on processing result into the control system of the external on-load switch of the electric energy meter
It sends and executes operational order, so that switching off/on device is based on operational order and executes corresponding switching on operation.
As can be seen from the above description, for the connection type between existing external on-load switch and electric energy meter, user is only
The switching on signal that control signal wire and feedback signal line can block ammeter to export to external on-load switch need to be truncated.For this
Problem provides the control method and system of a kind of external on-load switch of electric energy meter, specifically includes in the present embodiment：Pass through
Wireless communication module obtains the switching on signal that electric energy meter is sent, and is handled by microprocessor switching on signal, and base
It is sent in processing result to switching off/on device and executes operational order, so that switching off/on device is based on operational order and executes corresponding draw
Closing operation.By above-mentioned processing mode, the risk that switching on signal is truncated can be reduced from the root, it is existing to solve
It can be blocked by way of truncation switching on control signal wire and feedback signal line existing for the external on-load switch of electric energy meter
The technical issues of ammeter is to external on-load switch output switching on signal.
In an optional embodiment of the embodiment of the present invention, this method further includes following steps：
Microprocessor is after sending execution operational order to the switching off/on device, the behaviour based on the switching off/on device
Make result and return to operation mark to electric energy meter, wherein the operation mark is for reflecting that the switching off/on device executes the drawing
The executive condition of closing operation.
As can be seen from the above description, firstly, module obtains the switching on signal that electric energy meter is sent by wireless communication, so
Afterwards, switching on signal is handled by microprocessor, and sends to execute to operate to switching off/on device based on processing result and refers to
It enables, so that switching off/on device is based on operational order and executes corresponding switching on operation.Operation is being executed to the switching off/on device
After instruction, the operating result based on the switching off/on device returns to operation mark to electric energy meter, wherein the operation mark is used
The executive condition of the switching on operation is executed in the reflection switching off/on device.
Such as：Electric energy meter sends switching on operational order to external on-load switch, if microprocessor in external on-load switch
Operational order is received, but not to switching off/on device executing instruction operations, returns to the first operation mark (01) to electric energy meter；When micro-
Processor receives operational order, but executes operation failure to switching off/on device, returns to the second operation mark (02) to electric energy meter；
When microprocessor receives operational order and operates successfully to switching off/on device execution, to electric energy meter return third operation mark
(03)。
In an optional embodiment of the embodiment of the present invention, opened based on processing result to the external load of the electric energy meter
Switching off/on device in the control system of pass, which is sent, executes operational order.
Specifically, firstly, then the switching on signal that module obtains that electric energy meter is sent by wireless communication passes through micro- place
Reason device handles switching on signal.After handling switching on signal, processing result is based on to the electric energy meter
Switching off/on device in the control system of external on-load switch, which is sent, executes operational order.Operation is executed in the switching off/on device
After instruction, the operating result based on the switching off/on device returns to operation mark to electric energy meter, wherein the operation mark is used
The executive condition of the switching on operation is executed in the reflection switching off/on device.
In an optional embodiment of the embodiment of the present invention, this method further includes following steps：
Obtain the heartbeat sum that the electric energy meter is sent in the first preset time period；
In the case where the heartbeat sum is greater than the second preset threshold, determine that the electric energy meter and the electric energy meter are external
Communication connection between the control system of on-load switch is normal.
Specifically, the wireless communication module 20 of electric energy meter wireless communication module and the external on-load switch of external electric energy meter carries out
Pairing, authentication, including：Obtain the heartbeat sum that the electric energy meter is sent in the first preset time period；In the heartbeat
In the case that sum is greater than the second preset threshold, the control system of the electric energy meter Yu the external on-load switch of the electric energy meter is determined
Between connection it is normal.Second preset threshold is set according to actual needs, is not specifically limited in the present embodiment.
For example, the wireless communication module 20 of the wireless communication module of electric energy meter and external on-load switch be set in advance in it is each
Needing to send beats in minute is 20 times, then wireless communication module 20 needs to come from electric energy to receiving per after one minute
The beats signal that the wireless communication module of table is sent is verified, if number is 20 times, pairing and authentication are logical
It crosses, confirmation electric energy meter wireless communication module is connect normally with the wireless communication module 20 of external on-load switch；If external load
The heartbeat sent from electric energy meter wireless communication module time that the wireless communication module 20 of switch receives wherein a certain minute
Number does not reach 20 times, or is not received by the beats signal sent from electric energy meter wireless communication module, then confirms
Electric energy meter wireless communication module connect exception, micro process with the wireless communication module 20 of the external external on-load switch of electric energy meter
Device 30 immediately reports this abnormality, waits maintenance personal's maintenance.In an optional embodiment, this method is also wrapped
It includes：Heartbeat frame is not received yet after for a period of time in the state of operating a switch, and closing operation is executed to external on-load switch.Wherein described one
The section time is traditionally arranged to be 24 hours, optional.
In an optional embodiment of the embodiment of the present invention, this method further includes：
The switching on signal is having not been obtained, and in the case where the external load switch wire-outlet end voltage detected,
Judge whether the closing operation to the switching off/on device is valid operation；
If it is judged that not being then to execute operation of operating a switch to the switching off/on device.
As can be seen from the above description, in the present embodiment, microprocessor passes through in the case where switching signal has not been obtained
In the case that voltage sample module collects external load switch wire-outlet end voltage.Microprocessor may determine that current time to point
Whether the closing operation of closing device is valid operation.If microprocessor judges not instead of valid operation, illegal operation,
Operation of operating a switch then is executed to switching off/on device.
In the present embodiment, using above-mentioned processing mode, external on-load switch is enabled to be forced under the state of operating a switch
When combined floodgate, microprocessor, which detects in external on-load switch route, voltage, then carries out operation of operating a switch herein, and carry out in active
Report.It can not be drawn in the case where maliciously being disconnected to avoid the connecting line between external on-load switch and electric energy meter tripping terminal
Closing operation.
Embodiment three：
Fig. 4 is a kind of process of optionally control method of the external on-load switch of electric energy meter according to an embodiment of the present invention
Figure.
As shown in figure 4, a switching on operating process of the external on-load switch of electric energy meter is described as follows：
(1), the wireless communication module of electric energy meter is matched with the wireless communication module of external on-load switch, identity is recognized
Card；
(2), the wireless communication module of external on-load switch receives the switching on signal of electric energy meter transmission；
(3), microprocessor handles the switching on signal；
(4), microprocessor sends to switching off/on device and executes operational order, so that switching off/on device is based on the operational order
Execute switching on operation；
(5), microprocessor returns to mode of operation word (that is, above-mentioned behaviour to electric energy meter according to the operating result of switching off/on device
It makes a check mark).
Described in the specific implementation process of this method embodiment one as above and embodiment two, which is not described herein again.
Example IV：
Fig. 5 is the process of another optionally control method of the external on-load switch of electric energy meter according to an embodiment of the present invention
Figure.
As shown in figure 5, external on-load switch includes the following steps the judgment method of external forced closing operation legitimacy：
(1), external on-load switch is forced to close a floodgate；
(2), microprocessor detects that there is voltage signal at the external load switch wire-outlet end of user；
(3), microprocessor judges whether the closing operation of external on-load switch meets default combined floodgate condition；Wherein, if
Meet, thens follow the steps (4)；It is no to then follow the steps (5)；
(4), active reporting is carried out to this closing operation；
(5), microprocessor carries out operation of operating a switch to switching off/on device；
(6), active reporting is carried out to closing operation.
Such as：In the case that electric energy meter indicates user's arrearage, external on-load switch, external on-load switch are sent a signal to
Automatically wind up, and if user carries out closing operation by force at this time, the external on-load switch of electric energy meter can be to this closing operation
Carry out validity judgement, judged this closing operation for illegal closing operation, then the external on-load switch of electric energy meter can again into
Capable operation of operating a switch, and this illegal closing operation is reported.
As can be seen from the above description, in the prior art, external on-load switch electric energy meter is opened using mode of connection control is external
Close switching on：Wiring is drawn from electric energy meter tripping terminal 5 and 6 (three-phase electric energy meter is 13,14 and 15) and external on-load switch is defeated
Enter end to be connected, a pair of (three-phase electric energy meter is 2 groups) passive nonpolarity switch control signal of output carries out external on-load switch
Control.Control signal wire and feedback signal line, which need to be only truncated, in connection type user can block ammeter defeated to external on-load switch
Switching on signal out.For this problem, in the present embodiment, using communication substitution signal line transmission mode, from
The risk that switching on signal is truncated is reduced in root.
In conclusion system and method provided by the present embodiment have the following advantages that：
1, switching on signal processing is carried out using microprocessor and mode of operation is fed back, it is ensured that the reliability of operation, in real time
Property is good.
2, the control signal wire and feedback signal line that can avoid between external on-load switch and electric energy meter tripping terminal are disliked
Meaning can not carry out switching on operation in the case where disconnecting.
3, the legitimacy that closing operation is detected by microprocessor avoids forcing to close a floodgate happening.
4, increase heartbeat mechanism in communication mechanism, connection both sides send time of the heartbeat of setting within the specific time
Number, allows other side to know oneself " online ", to ensure the validity linked, guarantees the real-time of communication.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer-readable storage medium of a microprocessor.Based on this understanding, this hair
Substantially the part of the part that contributes to existing technology or the technical solution can be with soft in other words for bright technical solution
The form of part product embodies, which is stored in a storage medium, including some instructions are to make
It obtains a computer equipment (can be personal computer, server or the network equipment etc.) and executes each embodiment of the present invention
The all or part of the steps of the method.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. it is various
It can store the medium of program code.
Finally it should be noted that：Embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that：Anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. a kind of control system of the external on-load switch of electric energy meter, which is characterized in that including：Wireless communication module, microprocessor,
Switching off/on device and voltage sample module, wherein the wireless communication module is connected with the microprocessor, the micro process
The output end of device is connected with the input terminal of the switching off/on device, and the output end of the switching off/on device is connected with load,
The voltage sample module is connected with electric energy meter voltage wiring terminal and the microprocessor respectively；
The wireless communication module is used to obtain the switching on signal of electric energy meter transmission；
The microprocessor is held for handling the switching on signal, and based on processing result to switching off/on device transmission
Row operational order；
The switching off/on device is used to execute corresponding switching on operation based on operational order；
The voltage sample module is used to acquire the voltage value of the load.
2. control system according to claim 1, which is characterized in that further include：
Power module, the input terminal of the power module are connected with the electric energy meter voltage wiring terminal, the power module
Output end is connected with the input terminal of the wireless communication module and the microprocessor respectively, and the power module is used to be electric energy
Off-balancesheet sets on-load switch control system and provides power supply.
3. control system according to claim 1, which is characterized in that the wireless communication module includes following any：
ZigBee communication module, WiFi communication module, LoRa communication module, bluetooth communication.
4. control system according to claim 1, which is characterized in that the microprocessor is also used to：
After the switching off/on device executes operational order, the operating result based on the switching off/on device is returned to electric energy meter
Operating result mark, wherein the operating result mark is for reflecting that the switching off/on device executes the switching on operation
Situation.
5. control system according to claim 1, which is characterized in that the microprocessor is also used to：
Switching signal has not been obtained in the wireless communication module, and sentences in the load end detected there are in the case where voltage
Whether disconnected is valid operation to the closing operation of the switching off/on device；
If it is judged that not being then to be executed to the switching off/on device and operate a switch operation and carry out active reporting.
6. a kind of control method of the external on-load switch of electric energy meter, applied to electricity described in any one of the claims 1 to 5
Energy off-balancesheet sets the control system of on-load switch, which is characterized in that including：
Obtain the switching on signal that electric energy meter is sent；
The switching on signal is handled, and based on processing result to the control system of the external on-load switch of the electric energy meter
In switching off/on device send and execute operational order so that the switching off/on device is based on operational order and executes corresponding switching on
Operation.
7. method according to claim 6, which is characterized in that the method also includes：
After the switching off/on device executes operational order, the operating result based on the switching off/on device is returned to electric energy meter
Operation mark, wherein the operation mark is used to reflect that the switching off/on device to execute the executive condition of the switching on operation.
8. method according to claim 6, which is characterized in that the method also includes：
If getting the heartbeat frame that the electric energy meter is sent in the first preset time period, the total of the heartbeat frame is counted
Number, and in the case where the heartbeat frame sum is greater than the second preset threshold, determine that the electric energy meter and the electric energy meter are external
Communication connection between the control system of on-load switch is normal；
If heartbeat frame has not been obtained in the second preset time period, and the external on-load switch is in state of operating a switch, then controls
It makes the external on-load switch and restores "on" position.
9. method according to claim 6, which is characterized in that the method also includes：
The switching on signal is having not been obtained, and in the case where the switching off/on device outgoing line side voltage detected, is sentencing
Whether disconnected is valid operation to the closing operation of the switching off/on device；
If it is judged that not being then to execute operation of operating a switch to the switching off/on device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810777512.7A CN108919714A (en) | 2018-07-16 | 2018-07-16 | A kind of control method and system of the external on-load switch of electric energy meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810777512.7A CN108919714A (en) | 2018-07-16 | 2018-07-16 | A kind of control method and system of the external on-load switch of electric energy meter |
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| CN108919714A true CN108919714A (en) | 2018-11-30 |
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| CN201810777512.7A Pending CN108919714A (en) | 2018-07-16 | 2018-07-16 | A kind of control method and system of the external on-load switch of electric energy meter |
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| CB02 | Change of applicant information |
Address after: 843000 Akesu District, the Xinjiang Uygur Autonomous Region, No. 17 North Tower Road, Akesu new town Applicant after: State Grid Xinjiang Electric Power Co., Ltd. Akesu power supply company Applicant after: HOLLEY METERING LIMITED Address before: 310000 No. 181 Wuchang Avenue, Wuchang Street, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: HOLLEY METERING LIMITED Applicant before: State Grid Xinjiang Electric Power Co., Ltd. Akesu power supply company |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |
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| RJ01 | Rejection of invention patent application after publication |