Method and device for switching application scenarios of waveform recorder

Abstract

This invention relates to a technical solution for a method and apparatus for switching scenarios in a waveform recorder, comprising: detecting scenario switching in a generator automation system; when the generator automation system switches scenarios, acquiring scenario node signals and connecting the scenario node signals to the input of the waveform recorder; performing scenario input combination processing based on the input to obtain the target scenario number; comparing the currently running scenario number with the target scenario number, and based on the comparison result, executing the switching or maintaining state of the waveform recorder. The beneficial effects of this invention are: by using the input as a scenario switching signal, real-time identification of scenario signals is achieved; and by employing a start-lock and reset mechanism, the entire switching process is at the millisecond (ms) level, achieving rapid and seamless switching of device setpoints and ensuring stable operation of the device under all operating conditions and multiple scenarios.

Description

Technical Field

[0001] This invention relates to the fields of power and computers, and specifically to a method and apparatus for switching the application scenarios of a waveform recorder. Background Technology

[0002] To adapt to the complexity of electrical operating conditions, most waveform recorders also provide the function of switching between multiple setpoint zones. For example Figure 1 As shown, after selecting the corresponding setpoint area according to the current scenario requirements, the user sends the parameters to the device. After the device is re-initialized, it can operate normally in that scenario. The entire scenario switching process requires remote or local operation by the user.

[0003] Furthermore, in scenarios with frequent energy conversions, manual operation by the user is insufficient to meet the need for timely switching. For example, pumped storage power stations operate in more than six different scenarios, including generator start-up, generator operation, generator shutdown, motor start-up, motor operation, and motor shutdown, with each scenario lasting from a few minutes to several hours. If switching is not timely, using setpoints for a single scenario will cause the waveform recorder to frequently start in other scenarios, resulting in a large number of recorded files and obscuring valuable data. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a method and device for switching the reference scene of a waveform recorder, thereby realizing the stable operation of the filter under all working conditions and multiple scenarios.

[0005] The technical solution of the present invention includes a method for switching reference scenarios of a waveform recorder, characterized in that the method includes: detecting the switching scenario of a generator automation system; when the generator automation system switches scenarios, acquiring scenario node signals, and connecting the scenario node signals to the input of the waveform recorder; performing scenario input combination processing according to the input to obtain a target scenario number; comparing the currently running scenario number with the target scenario number, and executing the switching or maintenance state of the waveform recorder according to the comparison result.

[0006] According to the aforementioned method for switching scenarios using the waveform recorder, the scenario switching from the generator automation system further includes:

[0007] The output signal of the generator automation system is acquired in real time, and it is determined whether the output signal includes a scene switching signal. If a scene switching signal exists, the scene switching process is executed.

[0008] According to the aforementioned method for switching scenarios of the waveform recorder, the process of switching or maintaining the waveform recorder based on comparing the currently running scenario number with the target scenario number, and based on the comparison result, further includes: if the scenario number matches the target scenario number, then the waveform recorder continues to run; if the scenario number does not match the target scenario number, then a locking criterion process is executed, wherein the locking criterion process disables the criterion processing of the waveform recorder, obtains the built-in setpoint of the target scenario, and overwrites the current setpoint.

[0009] According to the method for switching the reference scenario of the waveform recorder, the method further includes: after the pending value data is covered, reverting the locking criterion process, restoring all functions of the waveform recorder, and switching to the corresponding scenario for operation.

[0010] According to the method for switching the reference scenario of the waveform recorder, the method further includes: overwriting the fixed value by copying the memory variable.

[0011] According to the aforementioned method for switching the reference scenario of the waveform recorder, the criterion processing of the waveform recorder is disabled by the blocking criterion process, which includes: disabling the criterion processing of the waveform recorder by disabling the start trigger of the waveform recorder, while other functions of the waveform recorder continue to operate.

[0012] According to the aforementioned method for switching the reference scene of the waveform recorder, the input of the scene node signal to the waveform recorder includes: acquiring the scene node signal through an active access system and connecting the scene node signal to the input of the waveform recorder.

[0013] The technical solution of the present invention also includes a scene switching device for a waveform recorder that implements any of the above-described methods, characterized in that it includes a scene switch quantity identification module, a scene interlocking module, a built-in setpoint area assignment module, and a scene reset module; the scene switch quantity identification module is used to acquire scene node signals when the generator automation system switches scenes, and connect the scene node signals to the input of the waveform recorder; perform scene input quantity combination processing according to the input to obtain the target scene number; the scene interlocking module is used to execute an interlocking criterion process when it detects that the scene number is inconsistent with the target scene number, the interlocking criterion process disables the criterion processing of the waveform recorder, acquires the built-in setpoint of the target scene, and overwrites the current setpoint; the built-in setpoint area assignment module is used to overwrite the current scene number with the scene number of the target scene by copying memory variables; the scene reset module is used to restore the waveform recorder and switch to the target scene and run after the built-in setpoint area assignment module completes the assignment.

[0014] The beneficial effects of this invention are as follows: by using input signals as scene switching signals, real-time identification of scene signals is realized. Furthermore, by adopting start-up interlocking and reset mechanisms, the entire switching process is completed in milliseconds (ms), achieving rapid and seamless switching of device setpoints and ensuring stable operation of the device under all working conditions and multiple scenarios. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 The diagram shown illustrates the scene switching of a waveform recorder in the prior art.

[0017] Figure 2 The diagram shows a flowchart of a method for switching reference scenarios for a waveform recorder according to an embodiment of the present invention.

[0018] Figure 3 The diagram shown is a scene switching process according to an embodiment of the present invention.

[0019] Figure 4 The diagram shown is a schematic representation of an apparatus according to an embodiment of the present invention. Detailed Implementation

[0020] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0021] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than", "less than", "exceeding" are understood to exclude the number itself, and "above", "below", "within" are understood to include the number itself.

[0022] In the description of this invention, the consecutive numbers of the method steps are for ease of review and understanding. Considering the overall technical solution of this invention and the logical relationship between each step, adjusting the implementation order of the steps will not affect the technical effect achieved by the technical solution of this invention.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "setup" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] Figure 2 The diagram shows a flowchart of a method for switching reference scenarios for a waveform recorder according to an embodiment of the present invention. The process includes:

[0025] S100, detects switching scenarios of generator automation system;

[0026] S200, when the generator automation system switches scenes, it acquires scene node signals and connects the scene node signals to the input of the waveform recorder;

[0027] S300, Perform scene input quantity combination processing according to the input quantity to obtain the target scene sequence number;

[0028] S400 compares the currently running scene number with the target scene number, and based on the comparison result, executes the switching or maintenance state of the waveform recorder.

[0029] Figure 3 The diagram illustrates a scene switching process according to an embodiment of the present invention. When the generator automation system switches scenes, it outputs different scene node signals, which are connected to the input of the waveform recorder via an active input system. When the input changes position, the waveform recorder detects the change in the switching quantity within 1ms and identifies the scene number n to be switched based on the combination of scene inputs.

[0030] When the current scene number is different from the scene number to be switched, the waveform recording interlocking criterion process, i.e., all waveform recording start criteria, will not work. In this case, the device will continue to operate normally except for the waveform recording start trigger.

[0031] After determining the waveform blocking criterion, the device extracts the built-in setpoints for the corresponding scene to be switched and overwrites the current setpoint area. The entire overwriting process is completed in milliseconds (ms).

[0032] After the pending value data is fully covered, the locking criterion process is reset. At this point, all functions of the device return to normal and it switches to the corresponding scenario for operation.

[0033] Figure 4 The diagram shows a schematic of a device according to an embodiment of the present invention. It includes a scene switch quantity identification module, a scene interlocking module, a built-in setpoint area assignment module, and a scene reset module. The scene switch quantity identification module is used to acquire scene node signals when the generator automation system switches scenes, and input these signals to the waveform recorder. Based on the input signals, it performs scene input combination processing to obtain the target scene number. The scene interlocking module is used to execute an interlocking criterion process when it detects a discrepancy between the scene number and the target scene number. This process disables the waveform recorder's criterion processing, acquires the built-in setpoint of the target scene, and overwrites the current setpoint. The built-in setpoint area assignment module is used to overwrite the current scene number with the target scene's scene number through memory variable copying. The scene reset module is used to restore the waveform recorder and switch to the target scene after the built-in setpoint area assignment module completes the assignment.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method for switching the reference scenario of a waveform recorder, characterized in that, The method includes: Detect switching scenarios of generator automation systems; When the generator automation system switches scenes, it acquires scene node signals and connects the scene node signals to the input of the waveform recorder. Based on the input quantity, perform scenario input quantity combination processing to obtain the target scenario number; Compare the currently running scene number with the target scene number, and based on the comparison result, switch or maintain the state of the waveform recorder; The step of comparing the currently running scene number with the target scene number, and then, based on the comparison result, switching or maintaining the state of the waveform recorder, further includes: If the scene number matches the target scene number, the waveform recorder will continue to run. If the scene number does not match the target scene number, the locking criterion process is executed. The locking criterion process disables the criterion processing of the waveform recorder, obtains the built-in set value of the target scene, and overwrites the current set value.

2. The method for switching reference scenarios of a waveform recorder according to claim 1, characterized in that, The switching scenario from the generator automation system also includes: The output signal of the generator automation system is acquired in real time, and it is determined whether the output signal includes a scene switching signal. If a scene switching signal exists, the scene switching process is executed.

3. The method for switching reference scenarios of the waveform recorder according to claim 1, characterized in that, The method further includes: After the pending value data is covered, the locking criterion process is restored, all functions of the waveform recorder are restored, and the system switches to the corresponding scenario for operation.

4. The method for switching reference scenarios of the waveform recorder according to claim 1, characterized in that, The method further includes: Overwriting fixed values ​​uses memory variable copying.

5. The method for switching reference scenarios of a waveform recorder according to claim 1, characterized in that, The blocking criterion process for disabling the waveform recorder includes: By disabling the start trigger of the waveform recorder, the criterion processing of the waveform recorder is disabled, while other functions of the waveform recorder continue to operate.

6. The method for switching reference scenarios of a waveform recorder according to claim 1, characterized in that, The input amount for connecting the scene node signal to the waveform recorder includes: The scene node signal is acquired through an active access system and then connected to the input of the waveform recorder.

7. A scene switching device for a waveform recorder implementing the method of any one of claims 1-6, characterized in that, It includes a scene switch quantity recognition module, a scene interlocking module, a built-in setpoint area assignment module, and a scene reset module; The scene switch quantity identification module is used to acquire scene node signals when the generator automation system switches scenes, and connect the scene node signals to the input of the waveform recorder; perform scene input quantity combination processing according to the input to obtain the target scene number. The scene locking module is used to execute a locking criterion process when it detects that the scene number is inconsistent with the target scene number. The locking criterion process disables the criterion processing of the waveform recorder, obtains the built-in set value of the target scene, and overwrites the current set value. The built-in fixed-value area assignment module is used to overwrite the current scene number with the scene number of the target scene by copying the memory variable; The scene restoration module is used to restore the waveform recorder and switch to the target scene and run after the built-in fixed value area assignment module completes the assignment.

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