CN110133369B - Load curve data display method and device and electric energy meter - Google Patents
Load curve data display method and device and electric energy meter Download PDFInfo
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- CN110133369B CN110133369B CN201910403104.XA CN201910403104A CN110133369B CN 110133369 B CN110133369 B CN 110133369B CN 201910403104 A CN201910403104 A CN 201910403104A CN 110133369 B CN110133369 B CN 110133369B
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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Abstract
The invention provides a load curve data display method and device and an electric energy meter, and relates to the technical field of electric energy meter display. The method and the device are applied to the electric energy meter, a load curve zone bit is preset in the electric energy meter, and the load curve zone bit is used for identifying the display state of a load curve on the electric energy meter, and the method comprises the following steps: acquiring key operation information and mark information currently stored in a load curve mark bit; and controlling a display interface of the electric energy meter to display the specified load curve data according to the key operation information and the sign information. The method and the device provided by the invention can visually display the data of the specified load curve on the display interface of the electric energy meter, so that a user can view the data more visually and conveniently, can know the change trend of the load in time, and are favorable for a dispatching department to carry out prediction work.
Description
Technical Field
The invention relates to the technical field of electric energy meter display, in particular to a load curve data display method and device and an electric energy meter.
Background
The load of the power system relates to various users in a wide area, the power utilization condition of each user is different, and the time, the place and the type of load added cannot be known in advance. Therefore, the load variation of the power system has randomness. In order to facilitate and timely know the change trend of the load, people generally obtain load curve data recorded by the electric energy meter at different time points, generate a load curve, record the change condition of the load along with the time, and study the regularity of the change of the load according to the load curve data. Because obtain load curve data from the electric energy meter, need the communication to obtain, and still need extra equipment to support, it is comparatively loaded down with trivial details, be unfavorable for people convenient, the audio-visual load curve data of looking over.
Disclosure of Invention
The invention solves the problem of how to conveniently and intuitively acquire load curve data from the electric energy meter.
In order to solve the above problems, the technical solution of the present invention is realized as follows:
in a first aspect, the present invention provides a load curve data display method, which is applied to an electric energy meter, wherein a load curve flag bit is preset in the electric energy meter, and the load curve flag bit is used for identifying a display state of a load curve on the electric energy meter, and the method includes: acquiring key operation information and mark information currently stored in a load curve mark bit; and controlling a display interface of the electric energy meter to display the specified load curve data according to the key operation information and the sign information. Compared with the prior art, the method and the device have the advantages that the historical load curve data stored in the electric energy meter can be selected to be displayed on the display interface of the electric energy meter according to the user requirements through the key operation information and the mark information. The specified load curve data are visually displayed on the display interface of the electric energy meter, so that a user can check the data more visually and conveniently, the change trend of the load can be known in time, and the method is favorable for a dispatching department to carry out prediction work.
Further, the mark information includes first mark information, the first mark information is used for representing that the display state of the load curve on the electric energy meter is a directory state, and the step of controlling the display interface of the electric energy meter to display the specified load curve data according to the key operation information and the mark information includes: when the load curve data exist in the electric energy meter, if the mark information is first mark information and the time for the electric energy meter to continuously receive the key operation information exceeds a first preset value, controlling the display state of the load curve on the electric energy meter to be switched from a directory state to a load curve data display state, and displaying the specified load curve data on a display interface of the electric energy meter; and changing the mark information currently stored in the load curve mark bit from the first mark information to the second mark information. And selecting the specified load curve data to be displayed in a directory state to display on a display interface of the electric energy meter through the first mark information and the time for continuously receiving the key operation information exceeding a first preset value. And further, the specified load curve data are visually displayed on a display interface of the electric energy meter, so that a user can view the data more visually and conveniently, the change trend of the load can be known in time, and the method is favorable for a dispatching department to predict.
Further, the mark information further includes third mark information, the third mark information is used for representing that the display state of the load curve on the electric energy meter is an initial state, and before the step of controlling the display state of the load curve on the electric energy meter to be switched from the directory state to the load curve data display state when the mark information is the first mark information and the time for the electric energy meter to continuously receive the key operation information exceeds a first preset value, the method further includes: and when the mark information is third mark information and the time for the electric energy meter to continuously receive the key operation information exceeds a first preset value, controlling the display state of the load curve on the electric energy meter to be switched from the initial state to the directory state, and changing the mark information currently stored in the mark bit of the load curve from the third mark information to the first mark information.
Further, the display interface of the electric energy meter is used for displaying the serial numbers corresponding to the load curve data captured at different times when the display state of the load curve on the electric energy meter is a directory state; when the mark information is first mark information and the time for the electric energy meter to continuously receive the key operation information exceeds a first preset value, before the step of controlling the display state of the load curve on the electric energy meter to be switched from the directory state to the load curve data display state, the method further comprises the following steps: and when the mark information is first mark information and the time for continuously receiving the key operation information by the electric energy meter is lower than a second preset value, adjusting the serial number displayed on the display interface of the electric energy meter according to the receiving times of the key operation information. The serial number is adjusted through the receiving times of the key operation information, and the purpose that the appointed load curve data are selected from the historical load curve data according to the requirements of users and displayed on the display interface is achieved. The data checking by the user is more visual and convenient, the change trend of the load can be known in time, and the prediction work of a dispatching department is facilitated.
Further, after the step of designating that the load curve data includes a plurality of display objects and changing the currently stored flag information of the load curve flag bit from the first flag information to the second flag information, the method further includes: and when the mark information is second mark information and the time for the electric energy meter to continuously receive the key operation information is lower than a second preset value, changing a display object in the designated load curve data.
In a second aspect, the present invention provides a load curve data display device, which is applied to an electric energy meter, wherein a load curve flag bit is preset in the electric energy meter, and the load curve flag bit is used for identifying a display state of a load curve on the electric energy meter, and the device includes: the acquisition module is used for acquiring key operation information and mark information currently stored in a load curve mark bit; and the processing module is used for controlling a display interface of the electric energy meter to display the specified load curve data according to the key operation information and the sign information. Compared with the prior art, the method and the device have the advantages that the historical load curve data stored in the electric energy meter can be selected to be displayed on the display interface of the electric energy meter according to the user requirements through the key operation information and the mark information. The specified load curve data are visually displayed on the display interface of the electric energy meter, so that a user can check the data more visually and conveniently, the change trend of the load can be known in time, and the method is favorable for a dispatching department to carry out prediction work.
Further, the flag information includes first flag information, the first flag information is used to characterize a display state of the load curve on the electric energy meter as a directory state, and the processing module includes: the switching unit is used for controlling the display state of the load curve on the electric energy meter to be switched from the directory state to the load curve data display state if the mark information is first mark information and the time for the electric energy meter to continuously receive the key operation information exceeds a first preset value when the load curve data exists in the electric energy meter, so that the designated load curve data is displayed on the display interface of the electric energy meter; and the mark changing unit is used for changing the mark information currently stored in the load curve mark position from the first mark information to the second mark information. And selecting the specified load curve data to be displayed in a directory state to display on a display interface of the electric energy meter through the first mark information and the time for continuously receiving the key operation information exceeding a first preset value. And further, the specified load curve data are visually displayed on a display interface of the electric energy meter, so that a user can view the data more visually and conveniently, the change trend of the load can be known in time, and the method is favorable for a dispatching department to predict.
Furthermore, the mark information also comprises third mark information, and the third mark information is used for representing that the display state of the load curve on the electric energy meter is an initial state; the switching unit is further used for controlling the display state of the load curve on the electric energy meter to be switched from the initial state to the directory state when the mark information is third mark information and the time for the electric energy meter to continuously receive the key operation information exceeds a first preset value; and the mark changing unit is also used for changing the mark information currently stored in the load curve mark position from the third mark information to the first mark information.
Further, the display interface of the electric energy meter is configured to display serial numbers corresponding to load curve data captured at different times when the display state of the load curve on the electric energy meter is a directory state, and the processing module further includes: and the catalog adjusting unit is used for adjusting the serial number displayed on the display interface of the electric energy meter according to the receiving times of the key operation information when the mark information is the first mark information and the time for the electric energy meter to continuously receive the key operation information is lower than a second preset value. The serial number is adjusted through the receiving times of the key operation information, and the purpose that the appointed load curve data are selected from the historical load curve data according to the requirements of users and displayed on the display interface is achieved. The data checking by the user is more visual and convenient, the change trend of the load can be known in time, and the prediction work of a dispatching department is facilitated.
In a third aspect, the present invention provides an electric energy meter, which includes a processor for executing a computer program to implement the load curve data display method of the first aspect. Compared with the prior art, the method and the device have the advantages that the historical load curve data stored in the electric energy meter can be selected to be displayed on the display interface of the electric energy meter according to the user requirements through the key operation information and the mark information. The specified load curve data are visually displayed on the display interface of the electric energy meter, so that a user can check the data more visually and conveniently, the change trend of the load can be known in time, and the method is favorable for a dispatching department to carry out prediction work.
Drawings
Fig. 1 is a schematic structural diagram of an electric energy meter according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a first load curve data display method according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a sub-step of step S102 shown in FIG. 2;
FIG. 4 is a schematic diagram illustrating an initial state of the electric energy meter according to the embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating another sub-step of step S102 shown in FIG. 2;
FIG. 6 is a schematic diagram illustrating a display of a directory state of an electric energy meter according to an embodiment of the present invention;
fig. 7 is a block diagram of a load curve data display device according to an embodiment of the present invention;
fig. 8 is a block diagram of a processing module of a load curve data display device according to an embodiment of the present invention.
Description of reference numerals:
1-an electric energy meter; 10-a processor; 20-display interface; 30-display key; 40-load curve data display means; 41-an acquisition module; 42-a processing module; 421-a switching unit; 422-flag change unit; 423-directory adjustment unit.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, the electric energy meter 1 includes: processor 10, display interface 20 and display keys 30. The processor 10 is electrically connected to both the display interface 20 and the display keys 30 to realize data transmission or interaction. For example, the processor 10 may be electrically connected to the display interface 20 and the display buttons 30 through one or more communication buses or signal lines. The electric energy meter 1 is also preset with a load curve zone bit, and the load curve zone bit is used for identifying the display state of the load curve on the electric energy meter 1.
The display keys 30 are used for generating key operation information in response to a key operation by a user. The display keys 30 may be, but are not limited to, mechanical keys or touch keys.
The processor 10 is arranged to execute a computer program to implement the corresponding functionality. The processor 10 may be an integrated circuit chip having signal processing capabilities. The processor 10 may be, but is not limited to, a single chip Microcomputer (MCU), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), or a Field Programmable Gate Array (FPGA).
The display interface 20 is used for receiving and displaying the display data sent by the processor 10. The display interface 20 may be, but is not limited to, a liquid crystal display.
It should be understood that the structure shown in fig. 1 is only a schematic structure of the electric energy meter 1, and the electric energy meter 1 may further include more or less components than those shown in fig. 1, or have a different configuration from that shown in fig. 1. The components shown in fig. 1 may be implemented in hardware, software, or a combination thereof.
Fig. 2 is a schematic flow chart of a load curve data display method according to an embodiment of the present invention, and it should be noted that the load curve data display method according to the present invention is not limited by the specific sequence shown in fig. 2 and described below. It should be understood that in other embodiments, the order of some steps in the load curve data display method according to the present invention may be interchanged according to actual needs, or some steps may be omitted or deleted. The specific process shown in fig. 2 will be described in detail below. Referring to fig. 2, the present embodiment describes a processing flow of the processor 10, and the method includes:
and step S101, acquiring key operation information and mark information currently stored in a load curve mark position.
In this embodiment, the electric energy meter 1 may obtain the key operation information and the flag information at the same time, or may obtain the flag information after obtaining the key operation information. It is understood that when the user performs a key operation on the display key 30, the display key 30 generates key operation information in response to the user's key operation and transmits the key operation information to the processor 10. The processor 10 may read the currently stored flag information from the load curve flag bit after receiving the key operation information; the processor 10 may also read the currently stored flag information from the load curve flag bit at all times without depending on the key operation information.
And S102, controlling a display interface of the electric energy meter to display the specified load curve data according to the key operation information and the sign information.
In this embodiment, the mark information includes first mark information, second mark information, and third mark information, where the first mark information is used to represent that the display state of the load curve on the electric energy meter 1 is the directory state, the second mark information is used to represent that the display state of the load curve on the electric energy meter 1 is the load curve data display state, and the third mark information is used to represent that the display state of the load curve on the electric energy meter 1 is the initial state.
In this embodiment, the display interface 20 of the electric energy meter 1 is configured to display serial numbers corresponding to load curve data captured at different times when the display state of the load curve on the electric energy meter 1 is a directory state.
Referring to fig. 3, step S102 includes the following sub-steps:
and step S1021, when the mark information is third mark information and the time for the electric energy meter to continuously receive the key operation information exceeds a first preset value, controlling the display state of the load curve on the electric energy meter to be switched from the initial state to the directory state, and changing the mark information currently stored in the mark position of the load curve from the third mark information to the first mark information.
In this embodiment, in the normal display state, the electric energy meter 1 supports the circular display, when the content displayed on the display interface 20 of the electric energy meter 1 is a preset display object of the load curve data captured at the current time or closest to the current time, the display state on the electric energy meter 1 is the initial state, and the third flag information is written in the load curve flag bit. If the user presses the display key 30 for a long time, the processor 10 detects that the flag information is the third flag information and the time for continuously receiving the key operation information exceeds the first preset value, the processor 10 controls the display state on the electric energy meter 1 to be switched from the initial state to the directory state, and simultaneously changes the flag information currently stored in the load curve flag bit from the third flag information to the first flag information.
It can be understood that when the display state on the electric energy meter 1 is the initial state, not only the flag information currently stored in the load curve flag bit is the third flag information, but also the identifier representing the initial state at this time is displayed on the display interface 20. When the user sees the identifier displayed on the display interface 20, the user knows that the display state on the electric energy meter 1 is the initial state at this time, and the initial state can be switched to the directory state by performing a long-time pressing operation on the display key 30. As shown in fig. 4, the identifier may be set to "LP", and the third flag information may be set to 0xA 5.
Step S1023, when the load curve data exists in the electric energy meter, if the mark information is the first mark information and the time of the electric energy meter continuously receiving the key operation information exceeds a first preset value, the display state of the load curve on the electric energy meter is controlled to be switched from the directory state to the load curve data display state, so that the appointed load curve data is displayed on the display interface of the electric energy meter, and the mark information currently stored in the load curve mark position is changed from the first mark information to the second mark information.
In this embodiment, after the display state of the electric energy meter 1 is switched from the initial state to the directory state, if the load curve data is stored in the electric energy meter 1 and the user presses the display key 30 for a long time, the processor 10 detects that the flag information is the first flag information and the time for continuously receiving the key operation information exceeds the first preset value, the processor 10 controls the display state of the load curve on the electric energy meter 1 to be switched from the directory state to the load curve data display state, and at the same time, changes the flag information currently stored in the load curve flag bit from the first flag information to the second flag information. And then the specified load curve data is displayed on the display interface 20 of the electric energy meter 1. Wherein the first flag information may be set to 0x5A, and the second flag information may be set to 0xF 0.
Further, in this embodiment, after the display state of the electric energy meter 1 is switched from the initial state to the directory state, if the load curve data is not stored in the electric energy meter 1 and the user presses the display key 30 for a long time at this time, the processor 10 detects that the flag information is the first flag information and the time for continuously receiving the key operation information exceeds the first preset value, and the processor 10 controls the display state of the electric energy meter 1 to exit the directory state. The display state of the electric energy meter 1 can be switched from the directory state to the initial state, so that the electric energy meter 1 is restored to the normal display state, normal circular display is carried out, and the key selection display mode is exited.
It can be understood that, when the load curve data is not stored in the electric energy meter 1, if the display state of the electric energy meter 1 is switched from the initial state to the directory state, the display interface 20 of the electric energy meter 1 displays an identifier indicating that the load curve data is empty at this time. When the user sees the identifier of the display interface 20, the user knows that no load curve data is stored in the electric energy meter 1 at this time, and performs a long-time pressing operation on the display key 30 to exit the directory state. The identifier in which the load curve data is empty may be set to null.
Further, in the present embodiment, as shown in fig. 5, step S102 further includes the following sub-steps:
in step S1022, when the flag information is the first flag information and the time for the electric energy meter to continuously receive the key operation information is less than the second preset value, the serial number displayed on the display interface of the electric energy meter is adjusted according to the number of times of receiving the key operation information.
In this embodiment, the display interface 20 of the electric energy meter 1 is configured to display serial numbers corresponding to load curve data captured at different times when the display state of the load curve on the electric energy meter 1 is a directory state. After the display state of the electric energy meter 1 is switched from the initial state to the directory state, if the load curve data is stored in the electric energy meter 1, the user performs a short-time pressing operation on the display key 30, and can switch the serial number, so that the user can select the load curve data of the capture time required to be displayed.
It can be understood that the electric energy meter 1 generates a serial number when capturing and storing the load curve data. For example, when the electric energy meter 1 captures load curve data at a first time and stores the load curve data, a corresponding serial number 01 is generated, when the electric energy meter 1 captures new load curve data at a second time and stores the new load curve data, a corresponding serial number 02 is generated, and so on until a storage space for storing the load curve data in the electric energy meter 1 is full. In the present embodiment, the electric energy meter 1 can store 96 pieces of load curve data at most, and correspondingly, 96 serial numbers will be generated.
If the load curve data is stored in the electric energy meter 1, after the display state of the electric energy meter 1 is switched from the initial state to the directory state, the display interface 20 of the electric energy meter 1 defaults to display the serial number 01. If the user does not need to check the load curve data corresponding to the serial number 01, the user performs a short-time pressing operation on the display key 30, and can switch the serial number and select the serial number corresponding to the load curve data to be checked. After the user selects the serial number, the user performs a long-time pressing operation on the display key 30, and the load curve data (i.e., the designated load curve data) corresponding to the serial number selected by the user is displayed on the display interface 20.
The serial number displayed on the display interface 20 is increased according to the number of times the user performs the short-press operation on the display key 30, and when the serial number is increased to the maximum serial number, the serial number is restarted from the serial number 01. Meanwhile, as shown in fig. 6, the display interface 20 also displays the serial number, and the serial number 01 is correspondingly displayed as no01 on the display interface 20 for the user to select.
And step S1024, when the mark information is second mark information and the time for the electric energy meter to continuously receive the key operation information is lower than a second preset value, changing a display object in the designated load curve data.
In the present embodiment, the specified load curve data includes a plurality of display objects. Since the display interface 20 can only display one display object at a time, only one display object in the designated load curve data is displayed on the display interface 20 after the display state on the electric energy meter 1 is switched from the directory state to the load curve data display state. If the user wants to view other display objects in the specified load curve data, the user can perform a short-time pressing operation on the display key 30 to change the display object of the specified load curve data currently displayed on the display interface 20. In this case, the user performs a short-press operation on the display key 30 once, and switches the display object of the designated load curve data displayed on the display interface 20 once.
Further, in this embodiment, when the processor 10 detects that the flag information is the second flag information and the time for continuously receiving the key operation information exceeds the first preset value, the electric energy meter 1 is controlled to exit from the display of the specified load curve data, that is, the display state on the electric energy meter 1 exits from the load curve data display state.
In order to perform the corresponding steps in the above-described embodiments and various possible manners, an implementation manner of the load curve data display device 40 is given below. Further, referring to fig. 7, fig. 7 is a functional block diagram of a load curve data display device 40 according to an embodiment of the present invention. It should be noted that the load curve data display device 40 provided in the present embodiment has the same basic principle and technical effect as those of the above embodiments, and for the sake of brief description, no part of the present embodiment is mentioned, and reference may be made to the corresponding contents in the above embodiments. The load curve data display device 40 includes: an acquisition module 41 and a processing module 42.
The obtaining module 41 is configured to obtain key operation information and currently stored flag information of a load curve flag bit.
It is understood that the obtaining module 41 may perform the above step S101.
The processing module 42 is configured to control the display interface 20 of the electric energy meter 1 to display the specified load curve data according to the key operation information and the sign information.
It is understood that the processing module 42 may perform step S102 described above.
Further, please refer to fig. 8, which is a block diagram of an implementable structure of the processing module 42 shown in fig. 7. The processing module 42 includes a switching unit 421, a flag changing unit 422, and a directory adjusting unit 423.
The switching unit 421 is configured to, when the load curve data exists in the electric energy meter 1, if the flag information is the first flag information and the time for the electric energy meter 1 to continuously receive the key operation information exceeds the first preset value, control the display state of the load curve on the electric energy meter 1 to be switched from the directory state to the load curve data display state, so as to display the specified load curve data on the display interface 20 of the electric energy meter 1.
Further, in this embodiment, the switching unit 421 is further configured to control the display state of the load curve on the electric energy meter 1 to be switched from the initial state to the directory state when the flag information is the third flag information and the time for the electric energy meter 1 to continuously receive the key operation information exceeds the first preset value.
It is understood that the switching unit 421 may perform the above-described steps S1021 and S1022.
The flag changing unit 422 is configured to change the flag information currently stored in the load curve flag bit from the first flag information to the second flag information.
Further, in this embodiment, the flag changing unit 422 is further configured to change the flag information currently stored in the load curve flag bit from the third flag information to the first flag information.
It is understood that the flag change unit 422 may perform the above-described steps S1021 and S1022.
The catalog adjusting unit 423 is configured to adjust the serial number displayed on the display interface 20 of the electric energy meter 1 according to the receiving times of the key operation information when the flag information is the first flag information and the time for the electric energy meter 1 to continuously receive the key operation information is lower than the second preset value.
It is understood that the catalog adjustment unit 423 may perform the above-described step S1023.
In the present embodiment, the above modules may be stored in the processor 10 shown in fig. 1 in the form of software or Firmware (Firmware), and may be executed by the processor 10 in fig. 1. Meanwhile, data, codes of programs, and the like required to execute the above-described modules may be stored in the processor 10.
In summary, the present invention provides a load curve data display method, a load curve data display device, and an electric energy meter, which are applied to the electric energy meter, wherein a load curve flag bit is preset in the electric energy meter, and the load curve flag bit is used for identifying a display state of a load curve on the electric energy meter. The key operation information and the mark information currently stored in the load curve mark bit are obtained; and controlling a display interface of the electric energy meter to display the specified load curve data according to the key operation information and the sign information. Compared with the prior art, the method and the device have the advantages that the historical load curve data stored in the electric energy meter can be selected to be displayed on the display interface of the electric energy meter according to the user requirements through the key operation information and the mark information. The specified load curve data are visually displayed on the display interface of the electric energy meter, so that a user can check the data more visually and conveniently, the change trend of the load can be known in time, and the method is favorable for a dispatching department to carry out prediction work.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A load curve data display method is applied to an electric energy meter, wherein a load curve flag bit is preset in the electric energy meter, and the load curve flag bit is used for identifying the display state of a load curve on the electric energy meter, and the method comprises the following steps:
acquiring key operation information and mark information currently stored in the load curve mark bit; the mark information comprises first mark information, and the first mark information is used for representing that the display state of the load curve on the electric energy meter is a directory state;
controlling a display interface of the electric energy meter to display appointed load curve data according to the key operation information and the mark information; the display interface of the electric energy meter is used for displaying serial numbers corresponding to the load curve data captured at different times when the display state of the load curve on the electric energy meter is a directory state;
when the mark information is the first mark information and the time for the electric energy meter to continuously receive the key operation information is lower than a second preset value, adjusting a serial number displayed on a display interface of the electric energy meter according to the receiving times of the key operation information;
when the load curve data exists in the electric energy meter, if the mark information is first mark information and the time for the electric energy meter to continuously receive the key operation information exceeds a first preset value, controlling the display state of the load curve on the electric energy meter to be switched from the directory state to the load curve data display state, and displaying the specified load curve data on the display interface of the electric energy meter;
and changing the mark information currently stored in the load curve mark position from the first mark information to second mark information.
2. The method according to claim 1, wherein the indication information further includes third indication information, the third indication information is used for indicating that the display state of the load curve on the electric energy meter is an initial state, and before the step of controlling the display state of the load curve on the electric energy meter to be switched from the directory state to the load curve data display state when the indication information is the first indication information and the time for which the electric energy meter continuously receives the key operation information exceeds a first preset value, the method further includes:
when the mark information is third mark information and the time of the electric energy meter continuously receiving the key operation information exceeds the first preset value, controlling the display state of the load curve on the electric energy meter to be switched from the initial state to the directory state, and changing the mark information currently stored in the mark position of the load curve from the third mark information to the first mark information.
3. The method according to claim 1, wherein the specified load curve data includes a plurality of display objects, and after the step of changing the flag information currently stored in the load curve flag bit from the first flag information to the second flag information, the method further includes:
and when the mark information is the second mark information and the time for the electric energy meter to continuously receive the key operation information is lower than a second preset value, changing a display object in the specified load curve data.
4. A load curve data display device is applied to an electric energy meter, wherein a load curve flag bit is preset in the electric energy meter, and the load curve flag bit is used for identifying the display state of a load curve on the electric energy meter, and the device comprises: the acquisition module is used for acquiring key operation information and mark information currently stored in the load curve mark bit; the mark information comprises first mark information, and the first mark information is used for representing that the display state of the load curve on the electric energy meter is a directory state; the processing module is used for controlling a display interface of the electric energy meter to display specified load curve data according to the key operation information and the mark information; the display interface of the electric energy meter is used for displaying serial numbers corresponding to the load curve data captured at different times when the display state of the load curve on the electric energy meter is a directory state;
the processing module comprises: the catalog adjusting unit is used for adjusting a serial number displayed on a display interface of the electric energy meter according to the receiving times of the key operation information when the mark information is the first mark information and the time for the electric energy meter to continuously receive the key operation information is lower than a second preset value;
the processing module comprises: the switching unit is used for controlling the display state of the load curve on the electric energy meter to be switched from the directory state to the load curve data display state if the mark information is first mark information and the time for the electric energy meter to continuously receive the key operation information exceeds a first preset value when the load curve data exists in the electric energy meter, so that the specified load curve data is displayed on the display interface of the electric energy meter;
the processing module comprises: and the mark changing unit is used for changing the mark information currently stored in the load curve mark position from the first mark information to the second mark information.
5. The load curve data display device according to claim 4, wherein the flag information further includes third flag information, and the third flag information is used to indicate that the display state of the load curve on the electric energy meter is an initial state;
the switching unit is further configured to control the display state of the load curve on the electric energy meter to be switched from the initial state to the directory state when the flag information is third flag information and the time for the electric energy meter to continuously receive the key operation information exceeds the first preset value;
the mark changing unit is further configured to change the mark information currently stored in the load curve mark bit from the third mark information to the first mark information.
6. An electric energy meter, characterized in that the electric energy meter comprises a processor for executing a computer program for implementing the load curve data display method according to any one of claims 1 to 3.
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