CN109490675B - Early warning method, electronic device and test system - Google Patents
Early warning method, electronic device and test system Download PDFInfo
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- CN109490675B CN109490675B CN201811612153.6A CN201811612153A CN109490675B CN 109490675 B CN109490675 B CN 109490675B CN 201811612153 A CN201811612153 A CN 201811612153A CN 109490675 B CN109490675 B CN 109490675B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
Abstract
The embodiment of the invention relates to the technical field of testing, and discloses an early warning method, electronic equipment and a testing system. The early warning method is applied to an operator of a test system, and the test system also comprises a controller and a high-voltage frequency converter connected with the controller; the method comprises the following steps: receiving current operation data of the high-voltage frequency converter sent by the controller; determining whether the high-voltage frequency converter fails or not according to the current operation data and preset early warning data; and if the high-voltage frequency converter is determined to have a fault, sending out a preset early warning signal. According to the invention, whether the high-voltage frequency converter has a fault or not can be pre-judged in advance, and an early warning signal is sent out before the high-voltage frequency converter generates a fault alarm.
Description
Technical Field
The embodiment of the invention relates to the technical field of testing, in particular to an early warning method, electronic equipment and a testing system.
Background
The frequency converter is an electric control device which applies a frequency conversion technology and a microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor. The high-voltage frequency converter belongs to one frequency converter, the rated voltage of the high-voltage frequency converter is up to 10KV, and in order to ensure safety, when the operation parameters of the high-voltage frequency converter exceed a set threshold value, a fault alarm is sent out to inform a tester.
The inventor finds that at least the following problems exist in the prior art: at present, a tester is informed through fault alarm, and if the experience of the tester is insufficient, panic can be generated due to sudden fault alarm; and, the high-voltage inverter has already gone wrong at this moment, if not taking measures in time, can threaten the security of testing personnel even.
Disclosure of Invention
The embodiment of the invention aims to provide an early warning method, electronic equipment and a test system, which can prejudge whether a high-voltage frequency converter fails or not in advance and send out an early warning signal before the high-voltage frequency converter generates a failure alarm.
In order to solve the above technical problem, an embodiment of the present invention provides an early warning method, which is applied to an operator of a test system, wherein the test system further includes a controller and a high-voltage frequency converter connected to the controller; the method comprises the following steps: receiving current operation data of the high-voltage frequency converter sent by the controller; determining whether the high-voltage frequency converter fails or not according to the current operation data and preset early warning data; and if the high-voltage frequency converter is determined to have a fault, sending out a preset early warning signal.
Embodiments of the present invention also provide an operator, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of early warning as described above.
An embodiment of the present invention further provides a test system including: the controller, the high-voltage frequency converter connected with the controller and the operator are connected with the controller; the controller is used for acquiring current operation data of the high-voltage frequency converter and sending the current operation data to the operator; the operator is used for receiving current operation data sent by the controller; the manipulator is also used for determining whether the high-voltage frequency converter fails according to the current operation data and preset early warning data, and sending out a preset early warning signal when determining that the high-voltage frequency converter fails.
Compared with the prior art, the method and the device have the advantages that the operator receives the current operation data of the high-voltage frequency converter through the controller, pre-judges whether the high-voltage frequency converter fails or not according to the current operation data and the preset operation data, and sends out an early warning signal if the high-voltage frequency converter fails when the pre-judgment result is obtained; whether the high-voltage frequency converter fails or not can be judged in advance, so that an early warning signal is sent out before the high-voltage frequency converter generates a fault alarm to prompt that a tester possibly fails, and the condition that the tester is in trouble due to the suddenly sent fault alarm is avoided; meanwhile, the tester can take measures in time, so that the fault is avoided, and the safety of the tester is further protected.
In addition, the early warning data comprises normal operation data; according to the current operation data and the preset operation data, whether the high-voltage frequency converter fails or not is determined, and the method specifically comprises the following steps: judging whether the current operation data is matched with the normal operation data; and when the current operation data is not matched with the normal operation data, determining that the high-voltage frequency converter fails. The embodiment provides a specific implementation mode for determining whether the high-voltage frequency converter fails according to current operation data and preset operation data.
In addition, the early warning data include normal operating data and fault data, according to current operating data and predetermined early warning data, confirm whether high-voltage inverter can break down, specifically do: judging whether the current operation data is matched with the normal operation data or not and whether the current operation data is matched with the fault data or not; and when the current operation data are not matched with the normal operation data and the current operation data are matched with the fault data, determining that the high-voltage frequency converter has a fault. The embodiment provides another specific implementation mode for determining whether the high-voltage frequency converter fails according to the current operation data and the preset operation data, and the accuracy of fault prejudgment is improved through double verification of the normal operation data and the fault data.
Additionally, the current operating data includes a plurality of operating parameters; the normal operating data includes normal ranges for a plurality of operating parameters; the fault data includes fault ranges for a plurality of operating parameters; judging whether the current operation data is matched with the normal operation data or not and whether the current operation data is matched with the fault data or not, including: for each operation parameter, judging whether the operation parameter is in a corresponding normal range or not and whether the operation parameter is in a corresponding fault range or not; and when at least one operation parameter is out of the corresponding normal range and at least one operation parameter is in the corresponding fault range, determining that the high-voltage frequency converter has a fault. The embodiment provides a specific implementation mode for judging whether the current operation data is matched with the normal operation data or not and whether the current operation data is matched with the fault data or not.
Additionally, the plurality of operating parameters includes any one or any combination of the following; the output current variation, the output voltage variation, the output frequency variation, and the output torque variation. The present embodiment provides specific types of operating parameters.
In addition, after sending out preset early warning signal, still include: and determining the fault type of the high-voltage frequency converter according to the parameter value of at least one operating parameter, and sending prompt information comprising the fault type. The fault type of the high-voltage frequency converter can be determined, and the prompt message including the fault type is sent out, so that a tester can take emergency operation in time according to the fault type.
In addition, the controller and the operator are respectively provided with a wireless communication module; the controller is specifically used for sending the current operation data to the operator through the wireless communication module; the operator is specifically used for receiving the current operation data sent by the controller through the wireless communication module. In the embodiment, the operator and the controller complete communication in a wireless mode, so that physical isolation between testers and the high-voltage frequency converter is realized, and the safety of the testers is further ensured.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
FIG. 1 is a block diagram of a test system according to a first embodiment of the present invention;
fig. 2 is a detailed flowchart according to an early warning method in a first embodiment of the present invention;
fig. 3 is a detailed flowchart according to an early warning method in a first embodiment of the present invention;
fig. 4 is a detailed flowchart illustrating an early warning method according to a first embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
Referring to fig. 1, the test system includes a controller 1, an operator 2 connected to the controller 1, and a high voltage inverter 3. Can be through wireless connection between controller 1 and the operator 2 to realized that testing personnel and high-voltage inverter 3's physics are kept apart, further guaranteed testing personnel's safety, operator 2 can be electronic equipment such as cell-phone, panel computer this moment, and wireless communication's mode is for example bluetooth, WIFI etc..
A specific flow of the warning method according to this embodiment is shown in fig. 2.
Specifically, the controller can collect output data of the high-voltage frequency converter, acquire current operation data of the high-voltage frequency converter according to the output data, and then send the current operation data to the operator.
And 102, determining whether the high-voltage frequency converter fails or not according to the current operation data and preset early warning data. If yes, go to step 103; otherwise, the process is ended directly.
Specifically, the operator is preset with early warning data, which can be preset by a tester or obtained according to recorded historical operating data; after receiving the current operation data, the operator can judge whether the high-voltage frequency converter has a fault or not according to the current operation data and the early warning data; if the high-voltage frequency converter is determined to have a fault, the step 103 is entered; otherwise, the high-voltage frequency converter does not have a fault and does not operate, and the high-voltage frequency converter continues to operate.
And 103, sending a preset early warning signal.
Specifically, the operator sends out an alarm signal to prompt a tester when determining that the high-voltage frequency converter will break down, and the alarm signal can be a text prompt, a voice prompt and the like.
Compared with the prior art, the method has the advantages that the operator receives the current operation data of the high-voltage frequency converter through the controller, pre-judges whether the high-voltage frequency converter fails or not according to the current operation data and the preset operation data, and sends out an early warning signal if the high-voltage frequency converter fails when the pre-judged result is obtained; whether the high-voltage frequency converter fails or not can be judged in advance, so that an early warning signal is sent out before the high-voltage frequency converter generates a fault alarm to prompt a tester that the fault may occur, and the situation that the tester is confused due to the suddenly-sent fault alarm is avoided; meanwhile, the tester can take measures in time, so that the occurrence of faults is avoided, and the safety of the tester is further protected.
A second embodiment of the present invention relates to an early warning method. The second embodiment is substantially the same as the first embodiment, and mainly differs therefrom in that: the specific implementation mode for determining whether the high-voltage frequency converter fails or not according to the current operation data and the preset operation data is provided.
A specific flow of the warning method according to this embodiment is shown in fig. 3.
Specifically, the current operating data comprises a plurality of operating parameters, the controller collects the output parameters of the high-voltage frequency converter in a preset collection period, and the output parameters comprise output current, output voltage, output frequency, output torque and the like, so that the plurality of operating parameters of the current operating data of the high-voltage frequency converter can be calculated according to the output data, and the plurality of operating parameters comprise any one or any combination of the following parameters; the output current variation, the output voltage variation, the output frequency variation, and the output torque variation.
Specifically, the early warning data comprises normal operation data, the normal operation data comprises normal ranges of a plurality of operation parameters, if each operation parameter in the current operation data is within the normal range of each operation parameter, the high-voltage frequency converter is determined not to have a fault, no operation is performed, the high-voltage frequency converter continues to operate, and after the next acquisition cycle, whether the high-voltage frequency converter has the fault is determined again; if at least one operation parameter is out of the corresponding normal range, it is determined that the high-voltage inverter fails, and step 203 is performed to send a preset warning signal.
In an example, when it is determined that the high-voltage inverter fails in a plurality of acquisition cycles, step 203 is performed to send a preset warning signal, so as to improve the accuracy of the warning.
Specifically, the operator sends out an alarm signal to prompt a tester when determining that the high-voltage frequency converter will break down, and the alarm signal can be a text prompt, a voice prompt and the like.
Compared with the first embodiment, the present embodiment provides a specific implementation manner for determining whether the high-voltage inverter fails according to the current operation data and the preset operation data.
A third embodiment of the present invention relates to an early warning method. The third embodiment is substantially the same as the first embodiment, and mainly differs therefrom in that: the other specific implementation mode for determining whether the high-voltage frequency converter fails or not according to the current operation data and the preset operation data is provided.
A specific flow of the warning method according to this embodiment is shown in fig. 4.
Specifically, the current operation data comprises a plurality of operation parameters, the controller acquires the output parameters of the high-voltage frequency converter in a preset acquisition period, the output parameters comprise output current, output voltage, output frequency, output torque and the like, so that the plurality of operation parameters of the current operation data of the high-voltage frequency converter can be calculated according to the output data, and the plurality of operation parameters comprise any one or any combination of the following parameters; the output current variation, the output voltage variation, the output frequency variation, and the output torque variation.
Specifically, it is determined whether the current operation data is matched with the normal operation data, and whether the current operation data is matched with the fault data, specifically: and judging whether the operation parameters are in the corresponding normal ranges or not and whether the operation parameters are in the corresponding fault ranges or not for each operation parameter.
The early warning data comprises normal operation data and fault data, the normal operation data comprises normal ranges of a plurality of operation parameters, and the fault data comprises fault ranges of the plurality of operation parameters; if the operation parameters in the current operation data are within the normal range of the operation parameters and the operation parameters are out of the fault range of the operation parameters, determining that the high-voltage frequency converter does not have a fault and does not operate, continuously operating the high-voltage frequency converter, and determining whether the high-voltage frequency converter has the fault again after the next acquisition cycle; if at least one operation parameter is out of the corresponding normal range and at least one operation parameter is in the corresponding fault range, it indicates that the at least one operation parameter is abnormal, and if it is determined that the high-voltage frequency converter fails, step 303 is performed to send a preset early warning signal.
Specifically, the operation parameter is taken as an output current variation as an example, a normal range of the output current variation is [ a, b ], a fault range of the output current includes (0, a) and (b, c), wherein a, b, c are normal values, c represents an output current variation threshold value when the high-voltage frequency converter fails, and when the output current variation value in the current operation data is outside [ a, b ] and in a fault range (0, a) or (b, c), it is determined that the high-voltage frequency converter fails, and a preset early warning signal is sent; and if the output current variation value in the current operation data is larger than c, directly sending out a fault alarm.
Specifically, the operator sends out an alarm signal to prompt a tester when determining that the high-voltage frequency converter will break down, and the alarm signal can be a text prompt, a voice prompt and the like.
Preferably, after step 303, the method further includes:
and step 304, determining the fault type of the high-voltage frequency converter according to the parameter value of at least one operation parameter, and sending prompt information comprising the fault type.
Specifically, according to the parameter value of the abnormal operation parameter, the fault type of the high-voltage frequency converter can be determined, the operation parameter is taken as the output current variation as an example to specifically explain, when the output current variation is out of the range of [ a, b ] and in the fault range (0, a), the fault type of the high-voltage frequency converter can be determined to be an overcurrent fault or an undervoltage fault, and the operator sends prompt information including the fault type so that a tester can know the fault type in time. The prompt message can be a voice prompt message, a text prompt message, and the like.
Preferably, when the operator determines the fault type of the high-voltage frequency converter, the operator can further obtain the solution corresponding to the fault type according to the preset corresponding relationship between the fault type and the fault solution, and then the operator can further send the prompt information including the fault type and the fault solution, so that a tester can operate according to the fault solution when knowing the fault type, and the occurrence of faults is avoided.
Compared with the first embodiment, the embodiment provides another specific implementation mode for determining whether the high-voltage frequency converter fails according to the current operation data and the preset operation data, and the accuracy of failure prediction is improved through double verification of the normal operation data and the failure data.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of this patent to add insignificant modifications or introduce insignificant designs to the algorithms or processes, but not to change the core designs of the algorithms and processes.
A fourth embodiment of the invention is directed to an operator comprising at least one processor; and a memory communicatively coupled to the at least one processor; wherein, the first and the second end of the pipe are connected with each other,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the warning method of any one of the first to third embodiments.
Where the memory and processor are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the bus connecting together various circuits of the memory and the processor or processors. The bus may also connect various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor.
The processor is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory may be used to store data used by the processor in performing operations.
Referring to fig. 1, the test system includes a controller 1, an operator 2 connected to the controller 1, and a high-voltage inverter 3.
The controller 1 is configured to obtain current operation data of the high-voltage inverter 3, and send the current operation data to the operator 2.
The operator 2 is used for receiving the current operation data sent by the controller 1.
The operator 2 is further configured to determine whether the high-voltage frequency converter 3 fails according to the current operation data and preset early warning data, and send a preset early warning signal when determining that the high-voltage frequency converter 3 fails.
In this embodiment, can install wireless communication module in controller 1 and operator 2 respectively to can be connected through wireless communication between controller 1 and the operator 2, thereby realized the physical isolation of tester and high-voltage inverter 3, further guaranteed tester's safety, operator 2 can be electronic equipment such as cell-phone, panel computer this moment, and wireless communication module can be bluetooth communication module, WIFI communication module etc..
The controller 1 is specifically configured to send the current operating data to the operator 2 via the wireless communication module.
The operator 2 is specifically configured to receive the current operation data sent by the controller 1 through the wireless communication module.
It should be noted that the present embodiment is a system example corresponding to the first to third embodiments, and may be implemented in cooperation with the first to third embodiments. The related technical details mentioned in the first to third embodiments are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related technical details mentioned in the present embodiment can also be applied to the first to third embodiments.
Compared with the prior art, the method has the advantages that the operator receives the current operation data of the high-voltage frequency converter through the controller, pre-judges whether the high-voltage frequency converter fails or not according to the current operation data and the preset operation data, and sends out an early warning signal if the high-voltage frequency converter fails when the pre-judged result is obtained; whether the high-voltage frequency converter fails or not can be judged in advance, so that an early warning signal is sent out before the high-voltage frequency converter generates a fault alarm to prompt a tester that the fault may occur, and the situation that the tester is confused due to the suddenly-sent fault alarm is avoided; meanwhile, the tester can take measures in time, so that the occurrence of faults is avoided, and the safety of the tester is further protected.
That is, as can be understood by those skilled in the art, all or part of the steps in the method according to the above embodiments may be implemented by a program instructing relevant hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (5)
1. The early warning method is characterized by being applied to an operator of a test system, wherein the test system further comprises a controller and a high-voltage frequency converter connected with the controller; the method comprises the following steps:
receiving current operation data of the high-voltage frequency converter sent by the controller, wherein the controller acquires output parameters of the high-voltage frequency converter in a preset acquisition period and calculates the current operation data of the high-voltage frequency converter according to the output parameters;
Determining whether the high-voltage frequency converter fails or not according to the current operation data and preset early warning data;
if the high-voltage frequency converter is determined to be in failure, sending a preset early warning signal;
the early warning data include normal operating data and trouble data, according to current operating data and predetermined early warning data, confirm whether high-voltage inverter can break down, include:
judging whether the current operation data is matched with the normal operation data or not and whether the current operation data is matched with the fault data or not;
when the current operation data is not matched with the normal operation data and the current operation data is matched with the fault data, determining that the high-voltage frequency converter fails;
the current operating data includes a plurality of operating parameters; the normal operating data includes normal ranges for the plurality of operating parameters; the fault data includes a fault range for the plurality of operating parameters; the plurality of operating parameters comprise any one or any combination of the following; an output current variation, an output voltage variation, an output frequency variation, and an output torque variation;
The judging whether the current operation data is matched with the normal operation data or not and whether the current operation data is matched with the fault data or not includes:
for each operating parameter, judging whether the operating parameter is in the corresponding normal range or not and whether the operating parameter is in the corresponding fault range or not;
and when at least one operating parameter is positioned outside the corresponding normal range and at least one operating parameter is positioned in the corresponding fault range, determining that the high-voltage frequency converter has a fault.
2. The warning method as claimed in claim 1, further comprising, after the step of sending out the preset warning signal:
and determining the fault type of the high-voltage frequency converter according to the parameter value of the at least one operating parameter, and sending prompt information comprising the fault type.
3. An operator, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the warning method of any one of claims 1 to 2.
4. A test system, comprising: the controller, the high-voltage frequency converter connected with the controller and the operator are connected with the controller;
the controller is used for acquiring current operation data of the high-voltage frequency converter and sending the current operation data to the operator, wherein the controller acquires output parameters of the high-voltage frequency converter in a preset acquisition period and calculates the current operation data of the high-voltage frequency converter according to the output parameters;
the operator is used for receiving the current operation data sent by the controller;
the operator is also used for determining whether the high-voltage frequency converter fails or not according to the current operation data and preset early warning data, and sending a preset early warning signal when determining that the high-voltage frequency converter fails;
the early warning data comprises normal operation data and fault data;
the operator is specifically configured to determine whether the current operating data matches the normal operating data, and whether the current operating data matches the fault data; when the current operation data is not matched with the normal operation data and the current operation data is matched with the fault data, determining that the high-voltage frequency converter fails;
The current operating data includes a plurality of operating parameters; the normal operating data includes normal ranges for the plurality of operating parameters; the fault data includes a fault range for the plurality of operating parameters; the plurality of operating parameters include any one or any combination of the following; an output current variation, an output voltage variation, an output frequency variation, and an output torque variation;
the operator is specifically configured to, for each of the operating parameters, determine whether the operating parameter is located in the corresponding normal range, and whether the operating parameter is located in the corresponding fault range; and when at least one of the operation parameters is out of the corresponding normal range and the at least one of the operation parameters is in the corresponding fault range, determining that the high-voltage frequency converter has a fault.
5. The test system according to claim 4, wherein the controller and the manipulator have wireless communication modules installed therein, respectively;
the controller is specifically configured to send the current operating data to the operator through the wireless communication module;
the operator is specifically configured to receive, through the wireless communication module, the current operation data sent by the controller.
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| CN113012402B (en) * | 2021-02-22 | 2022-07-15 | 台州市菱士达电器有限公司 | Intelligent monitoring system and intelligent monitoring method for frequency converter |
| CN113256942B (en) * | 2021-05-18 | 2022-10-28 | 中海石油深海开发有限公司 | Advanced early warning method and device for abnormal event, electronic equipment and medium |
| CN113406948B (en) * | 2021-06-21 | 2023-02-03 | 合肥美的暖通设备有限公司 | Fault data processing method and device, frequency converter, air conditioning equipment and storage medium |
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| CN103050946A (en) * | 2013-01-21 | 2013-04-17 | 江苏力普电子科技有限公司 | High-voltage frequency converter with over-current protection function and over-current protection method of frequency converter |
| CN104280647A (en) * | 2014-10-30 | 2015-01-14 | 国家电网公司 | High-voltage transformer resonance early warning method and device |
| CN105373041A (en) * | 2015-11-19 | 2016-03-02 | 中冶南方（武汉）自动化有限公司 | High-performance frequency conversion controller |
| CN105737903A (en) * | 2016-04-27 | 2016-07-06 | 於斌 | Intelligent pre-diagnosis and maintenance intelligent early warning method for faults of port machinery |
| CN108093023A (en) * | 2017-11-10 | 2018-05-29 | 四川睿数科技有限公司 | Equipment fault detection method, device and system |
| CN108511067A (en) * | 2018-04-02 | 2018-09-07 | 武汉久乐科技有限公司 | Method for early warning and electronic equipment |
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