CN115361199A - Abnormality detection apparatus and system - Google Patents
Abnormality detection apparatus and system Download PDFInfo
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- CN115361199A CN115361199A CN202210985110.2A CN202210985110A CN115361199A CN 115361199 A CN115361199 A CN 115361199A CN 202210985110 A CN202210985110 A CN 202210985110A CN 115361199 A CN115361199 A CN 115361199A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
- H04L63/1408—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic by monitoring network traffic
- H04L63/1425—Traffic logging, e.g. anomaly detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
- H04L63/1408—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic by monitoring network traffic
- H04L63/1416—Event detection, e.g. attack signature detection
Abstract
The embodiment of the application provides anomaly detection equipment and system. The abnormality detection apparatus includes: the embedded device is used for converting a plurality of running state information in a period of time into a two-dimensional code to be identified and displaying the two-dimensional code when receiving the plurality of running state information sent by the equipment in the local area network in the period of time; when the running state information sent by the equipment in the local area network at the current time interval is not received, displaying the two-dimensional code to be identified at the last time interval; the operation and maintenance device is used for identifying the two-dimensional code to be identified to obtain identification information, sending the identification information to the server, and when the two-dimensional code to be identified in the last time period is judged to be the same as the two-dimensional code to be identified in the current time period, not sending information to the server; and the server is used for receiving the identification information and sending abnormal prompt information to the monitoring terminal when detecting that the information is not received after exceeding the first preset time, so that the safety can be improved.
Description
Technical Field
The application belongs to the technical field of network security, and particularly relates to anomaly detection equipment and system.
Background
Most of devices in the field of network security are devices in a local area network, and usually cannot be directly connected with an external network in order to guarantee network security; meanwhile, due to environmental influences and artificial damage, equipment in the local area network is prone to failure.
In order to effectively maintain devices in a local area network, the network security field usually adopts a network gate to isolate an internal network from an external network at present, however, the deployment cost of the network gate is high, and therefore, the utilization rate is low. Therefore, the existing equipment in the local area network is mainly maintained through manual regular inspection and troubleshooting, however, when the equipment fails, the equipment cannot be found in time, so that accidents are easily caused, and the safety is reduced.
Disclosure of Invention
The embodiment of the application provides an abnormity detection device and system, so that the problem of low safety in the prior art can be overcome at least to a certain extent, and the safety is improved.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
According to an aspect of the embodiments of the present application, an anomaly detection device is provided, configured to detect whether a device in a local area network fails, including:
the embedded device is used for converting a plurality of pieces of running state information in a time period into a two-dimensional code to be identified and displaying the two-dimensional code when receiving the plurality of pieces of running state information sent by the equipment in the local area network in the time period; when the running state information sent by the equipment in the local area network at the current time interval is not received, displaying the two-dimensional code to be identified at the last time interval;
the operation and maintenance device is used for identifying the two-dimensional code to be identified to obtain identification information, sending the identification information to the server, and when the two-dimensional code to be identified in the previous period is judged to be the same as the two-dimensional code to be identified in the current period, not sending information to the server;
and the server is used for receiving the identification information and sending abnormal prompt information to the monitoring terminal when detecting that the information is not received after exceeding a first preset time, wherein the abnormal prompt information is used for indicating that equipment in the local area network fails.
In the technical solutions provided in some embodiments of the present application, the operation and maintenance device is specifically configured to determine that the two-dimensional code to be identified in the previous time period is the same as the two-dimensional code to be identified in the current time period when the embedded device receives the operation state information in the previous time period and does not receive the operation state information in the current time period.
In the technical solutions provided in some embodiments of the present application, the operation and maintenance device is further configured to identify the two-dimensional code to be identified in the current time period to obtain identification information when it is determined that the two-dimensional code to be identified in the previous time period is different from the two-dimensional code to be identified in the current time period; and sending the identification information to a server.
In the technical solutions provided in some embodiments of the present application, the operation and maintenance device is specifically configured to determine that the two-dimensional code to be identified in the previous time period is different from the two-dimensional code to be identified in the current time period when the embedded device receives the operation state information in the previous time period and the operation state information in the current time period, respectively.
In the technical solutions provided in some embodiments of the present application, the embedded device is specifically configured to, when receiving the running state information of a previous time period, convert a plurality of pieces of running state information in the previous time period into a first to-be-identified two-dimensional code; when the running state information of the current time period is received, converting the running state information of the current time period into a second two-dimensional code to be identified; the first two-dimensional code to be identified is different from the second two-dimensional code to be identified.
In some embodiments of the present application, the embedded device includes:
the control module is connected with the equipment in the local area network and used for converting a plurality of pieces of running state information in a period of time into the two-dimensional code to be identified when the plurality of pieces of running state information sent by the equipment in the local area network in the period of time are received; when receiving a plurality of pieces of running state information sent by the equipment in the local area network in the current time period, converting the plurality of pieces of running state information in the time period into a two-dimensional code to be identified;
and the screen is connected with the control module and is used for displaying the two-dimension code to be identified in the previous time period or the two-dimension code to be identified in the current time period.
In the technical solutions provided in some embodiments of the present application, the operation and maintenance device includes a scanner, a determination module, and a processing module;
the position of the scanner corresponds to that of the screen, and the scanner is used for identifying the two-dimensional code to be identified to obtain identification information;
the judging module is respectively connected with the scanner and the processing module and is used for judging whether the two-dimensional code to be identified in the previous time period is the same as the two-dimensional code to be identified in the current time period;
and the processing module is connected with the server and used for not sending information to the server when judging that the two-dimensional code to be identified in the last time period is the same as the two-dimensional code to be identified in the current time period, and sending identification information to the server when judging that the two-dimensional code to be identified in the last time period is different from the two-dimensional code to be identified in the current time period.
In the technical solutions provided by some embodiments of the present application, the abnormality detection apparatus further includes an alarm, where the alarm is connected to the control module, and is configured to send an alarm signal when detecting that the embedded device does not receive the running state information within a second preset time period.
In the technical solutions provided in some embodiments of the present application, the embedded apparatus is specifically configured to receive running state information of a device in a local area network when the device in the local area network is in a first running state; and when the equipment in the local area network is in the second running state, the running state information of the equipment in the local area network is not received.
In the technical solutions provided in some embodiments of the present application, the running state information includes a heartbeat packet.
According to another aspect of embodiments of the present application, there is provided an abnormality detection system including: the device for detecting the abnormality comprises any one of the above-mentioned abnormality detection device and a device in the local area network, wherein the abnormality detection device is used for detecting whether the device in the local area network has a fault.
In the technical solutions provided by some embodiments of the present application, the anomaly detection device and system of the present application can detect whether a device in a local area network fails, and include an embedded apparatus, configured to convert a plurality of pieces of operation state information in a period of time into a to-be-identified two-dimensional code and display the two-dimensional code when the plurality of pieces of operation state information sent by the device in the local area network in the period of time are received; when the running state information sent by the equipment in the local area network at the current time interval is not received, displaying the two-dimensional code to be identified at the previous time interval; the operation and maintenance device is used for identifying the two-dimensional code to be identified to obtain identification information, sending the identification information to the server, and when the two-dimensional code to be identified in the last time period is judged to be the same as the two-dimensional code to be identified in the current time period, not sending information to the server; and the server is used for receiving the identification information and sending abnormal prompt information to the monitoring terminal when detecting that the information is not received after exceeding a first preset time, wherein the abnormal prompt information is used for indicating that equipment in the local area network fails. When the two-dimensional code to be identified in the previous time period is the same as the two-dimensional code to be identified in the current time period, information is not sent to the server, and therefore the server determines that equipment in the local area network fails through the fact that the information is not received, abnormal prompt information is sent in time, a user is convenient to be informed in time, the fault is found in time, the user can process the fault conveniently, and safety is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 shows a schematic diagram of an anomaly detection system suitable for implementing an embodiment of the present application.
FIG. 2 illustrates a schematic diagram of an embedded appliance suitable for use in implementing an embodiment of the present application.
Fig. 3 shows a schematic structural diagram of an operation and maintenance device suitable for implementing an embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flowcharts shown in the figures are illustrative only and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
It should be noted that: reference herein to "a plurality" means two or more. "and/or" describe the association relationship of the associated objects, meaning that there may be three relationships, e.g., A and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
As shown in fig. 1, an abnormality detection apparatus 100 of the present application is used to detect whether a device 10 in a local area network fails, where the abnormality detection apparatus 100 includes an embedded device 20, an operation and maintenance device 30, a server 40, and a monitoring terminal 50.
The embedded device 20 is configured to, when receiving a plurality of pieces of operation state information sent by the device 10 in the local area network in a previous time period, convert the plurality of pieces of operation state information in the time period into a two-dimensional code to be identified and display the two-dimensional code; when the running state information sent by the device 10 in the local area network at the current time period is not received, displaying the two-dimensional code to be identified at the previous time period; in one embodiment, the run state information may include heartbeat packets. The time length of the previous time interval is equal to that of the current time interval, and the time length can be specifically set according to requirements.
The operation and maintenance device 30 is configured to identify the two-dimensional code to be identified to obtain identification information, send the identification information to the server 40, and when it is determined that the two-dimensional code to be identified in the previous time period is the same as the two-dimensional code to be identified in the current time period, not send information to the server 40;
and the server 40 is configured to receive the identification information and send an abnormal prompt message to the monitoring terminal 50 when detecting that no information is received beyond the first preset time period, where the abnormal prompt message is used to indicate that the device 10 in the lan fails, so as to prompt the user.
In an embodiment, the operation and maintenance device 30 is specifically configured to determine that the two-dimensional code to be identified in the previous time period is the same as the two-dimensional code to be identified in the current time period when the embedded device 20 receives the operation state information in the previous time period and does not receive the operation state information in the current time period.
In an embodiment, the operation and maintenance device 30 is further configured to identify the two-dimensional code to be identified in the current time period to obtain identification information when it is determined that the two-dimensional code to be identified in the previous time period is different from the two-dimensional code to be identified in the current time period; and transmits the identification information to the server 40.
In an embodiment, the operation and maintenance device 30 is specifically configured to determine that the two-dimensional code to be recognized in the previous time period is different from the two-dimensional code to be recognized in the current time period when the embedded device 20 receives the operation state information in the previous time period and the operation state information in the current time period, respectively.
In an embodiment, the embedded device 20 is specifically configured to, when receiving the operation status information in the previous period, convert a plurality of operation status information in the previous period into the first two-dimensional code to be recognized; when the running state information of the current time period is received, converting the running state information of the current time period into a second two-dimensional code to be identified; the first two-dimensional code to be identified is different from the second two-dimensional code to be identified.
In one embodiment, as shown in FIG. 2, the embedded appliance 20 includes a control module 21 and a screen 22.
The control module 21 is respectively connected with the device 10 in the local area network and the screen 22, and the control module 21 is configured to convert a plurality of pieces of operation state information in a period of time into a two-dimensional code to be identified when receiving the plurality of pieces of operation state information sent by the device 10 in the local area network in the period of time; when receiving a plurality of pieces of operation state information sent by the device 10 in the local area network at the current time period, converting the plurality of pieces of operation state information in the time period into a two-dimensional code to be identified;
and the screen 22 is used for displaying the two-dimensional code to be identified in the previous time period or the current time period. That is, the screen 22 can display the first two-dimensional code to be recognized or the second two-dimensional code to be recognized.
In one embodiment, as shown in fig. 3, the operation and maintenance device 30 includes a scanner 31, a determination module 32, and a processing module 33, where a position of the scanner 31 corresponds to a position of the screen 22, the determination module 32 is connected to the scanner 31 and the processing module 33, respectively, and the processing module 33 is connected to the server 40;
the scanner 31 is used for identifying the two-dimensional code to be identified to obtain identification information;
the judging module 32 is configured to judge whether the two-dimensional code to be identified in the previous time period is the same as the two-dimensional code to be identified in the current time period;
and the processing module 33 is configured to not send information to the server 40 when it is determined that the two-dimensional code to be recognized in the previous time period is the same as the two-dimensional code to be recognized in the current time period, and send identification information to the server 40 when it is determined that the two-dimensional code to be recognized in the previous time period is different from the two-dimensional code to be recognized in the current time period.
In an embodiment, referring back to fig. 1, the abnormality detection apparatus 100 further includes an alarm 60, where the alarm 60 is connected to the control module 21, and the alarm 60 is configured to send an alarm signal when detecting that the embedded device 20 does not receive the operation state information within a second preset time period. The first preset time length and the second preset time length can be set according to requirements.
The embedded apparatus 20 is specifically configured to receive operation state information of the device 10 in the local area network when the device 10 in the local area network is in a first operation state; and when the device 10 in the local area network is in the second operation state, the operation state information of the device 10 in the local area network is not received. The first operation state is a normal operation state, that is, a state in which no fault occurs, and the second operation state is an abnormal operation state, that is, a state in which a fault occurs. In one way, when the device 10 in the lan is in the first operation state, the operation state information is sent to the embedded apparatus 20 at intervals; and when the device 10 in the local area network is in the second operation state, suspending sending the operation state information to the embedded device.
In a specific embodiment, the apparatus specifically operates as follows:
when the equipment 10 in the local area network is not in fault, the equipment 10 in the local area network and the embedded device 20 (a local area network single chip microcomputer) carry out information intercommunication through the local area network; the device 10 in the local area network sends a heartbeat packet of normal operation of the device to the embedded apparatus 20 at intervals (for example, 2 s); after receiving the heartbeat packet for a period of time, the embedded device 20 collects all received information to generate two-dimensional code information; (at this moment, the fault is not judged, and only information is transmitted), the two-dimensional code generated at the next time can actively cover the previous two-dimensional code;
after the two-dimensional code is normally generated, the operation and maintenance device 30 receives the normal state information of the device 10 in the local area network by scanning the two-dimensional code, and the operation and maintenance device 30 analyzes and converts the received two-dimensional code data into binary data and sends the binary data to the server 40; the operation and maintenance device 30 can send the information to the server 40 through the 4G network module, and the server 40 determines that the heartbeat packet data can be received, which indicates that no fault occurs, and does not send the information to the mobile client;
if the device 10 in the local area network fails, the heartbeat packet is not sent to the embedded device 20, the two-dimensional code displayed by the embedded device 20 remains unchanged all the time, the operation and maintenance device 30 does not send the same data to the server 40 when receiving the same two-dimensional code, and the server 40 determines that the device 10 in the local area network is disconnected because the server does not receive new data for a long time; and sending the fault information to the mobile client for alarming.
In addition, when the device 10 in the lan does not send heartbeat packet information to the embedded apparatus 20 for a preset time period (for example, 3 minutes), the alarm 60 considers that the device 10 in the lan has a connection failure (i.e., the device 10 in the lan is abnormal), and the alarm gives an alarm.
The operation and maintenance device 30 generally employs a wide area network to transmit signals, such as a 4G network. That is, the operation and maintenance device 30 and the server 40 establish a connection through the wide area network.
With reference to fig. 1, the present application further provides an anomaly detection system 200, comprising: any one of the above-described abnormality detection devices 100 and devices in a local area network 10 is configured to detect whether a device in a local area network has a failure.
In one embodiment, when the device 10 in the lan is in the first operation state, the operation state information is sent to the embedded apparatus 20 at intervals; when the device 10 in the lan is in the second operation state, the sending of the operation state information to the embedded apparatus 20 is suspended.
The anomaly detection equipment and the anomaly detection system can detect whether equipment in the local area network fails or not, and comprise an embedded device, a control device and a display device, wherein the embedded device is used for converting a plurality of running state information in a period of time into a two-dimensional code to be identified and displaying the two-dimensional code when the running state information is received; when the running state information sent by the equipment in the local area network at the current time interval is not received, displaying the two-dimensional code to be identified at the last time interval; the operation and maintenance device is used for identifying the two-dimensional code to be identified to obtain identification information, sending the identification information to the server, and when the two-dimensional code to be identified in the previous period is judged to be the same as the two-dimensional code to be identified in the current period, not sending information to the server; and the server is used for receiving the identification information and sending abnormal prompt information to the monitoring terminal when detecting that the information is not received after exceeding a first preset time, wherein the abnormal prompt information is used for indicating that equipment in the local area network fails. When the two-dimensional code to be identified in the previous time period is the same as the two-dimensional code to be identified in the current time period, information is not sent to the server, and therefore the server determines that equipment in the local area network fails through the fact that the information is not received, abnormal prompt information is sent in time, a user is convenient to be informed in time, the fault is found in time, the user can process the fault conveniently, and safety is improved.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. An abnormality detection device for detecting whether a device in a local area network has failed, comprising:
the embedded device is used for converting a plurality of pieces of running state information in a time period into a two-dimensional code to be identified and displaying the two-dimensional code when receiving the plurality of pieces of running state information sent by the equipment in the local area network in the time period; when the running state information sent by the equipment in the local area network at the current time interval is not received, displaying the two-dimensional code to be identified at the last time interval;
the operation and maintenance device is used for identifying the two-dimensional code to be identified to obtain identification information, sending the identification information to the server, and when the two-dimensional code to be identified in the previous period is judged to be the same as the two-dimensional code to be identified in the current period, not sending information to the server;
and the server is used for receiving the identification information and sending abnormal prompt information to the monitoring terminal when detecting that the information is not received after exceeding a first preset time, wherein the abnormal prompt information is used for indicating that equipment in the local area network fails.
2. The abnormality detection device according to claim 1, wherein the operation and maintenance device is specifically configured to determine that the two-dimensional code to be recognized in the previous time period is the same as the two-dimensional code to be recognized in the current time period when the embedded device receives the operation state information in the previous time period and does not receive the operation state information in the current time period.
3. The abnormality detection device according to claim 1, wherein the operation and maintenance device is further configured to, when it is determined that the two-dimensional code to be recognized in the previous time period is different from the two-dimensional code to be recognized in the current time period, recognize the two-dimensional code to be recognized in the current time period to obtain the recognition information; and sending the identification information to a server.
4. The abnormality detection device according to claim 3, wherein the operation and maintenance apparatus is specifically configured to determine that the two-dimensional code to be recognized in the previous time period is different from the two-dimensional code to be recognized in the current time period when the embedded apparatus receives the operation state information in the previous time period and the operation state information in the current time period, respectively.
5. The abnormality detection apparatus according to claim 3, wherein the embedded device is specifically configured to, when receiving the operation state information of a previous time period, convert a plurality of operation state information in the previous time period into the first two-dimensional code to be recognized; when the running state information of the current time period is received, converting the running state information of the current time period into a second two-dimensional code to be identified; the first two-dimensional code to be identified is different from the second two-dimensional code to be identified.
6. The abnormality detection apparatus according to claim 1, characterized in that the embedded device includes:
the control module is connected with the equipment in the local area network and is used for converting a plurality of pieces of operation state information in a time period into the two-dimensional code to be identified when the plurality of pieces of operation state information sent by the equipment in the local area network in the time period are received; when receiving a plurality of pieces of running state information sent by the equipment in the local area network at the current time period, converting the plurality of pieces of running state information in the time period into two-dimensional codes to be identified;
and the screen is connected with the control module and is used for displaying the two-dimension code to be identified in the previous time period or the two-dimension code to be identified in the current time period.
7. The anomaly detection device of claim 6, wherein said operation and maintenance means comprises a scanner, a judgment module and a processing module;
the position of the scanner corresponds to that of the screen, and the scanner is used for identifying the two-dimensional code to be identified to obtain identification information;
the judging module is respectively connected with the scanner and the processing module and is used for judging whether the two-dimensional code to be identified in the previous time period is the same as the two-dimensional code to be identified in the current time period;
and the processing module is connected with the server and is used for not sending information to the server when judging that the two-dimensional code to be identified in the last time period is the same as the two-dimensional code to be identified in the current time period and sending identification information to the server when judging that the two-dimensional code to be identified in the last time period is different from the two-dimensional code to be identified in the current time period.
8. The abnormality detection apparatus according to claim 6, further comprising an alarm connected to the control module, the alarm being configured to send an alarm signal when it is detected that the embedded device does not receive the operation state information within a second preset duration.
9. The abnormality detection apparatus according to claim 1, wherein the embedded device is specifically configured to receive operation state information of the device in the local area network when the device in the local area network is in the first operation state; and when the equipment in the local area network is in the second running state, the running state information of the equipment in the local area network is not received.
10. An anomaly detection system, comprising: the abnormality detection apparatus according to any one of claims 1 to 9 and the apparatus in the local area network, said abnormality detection apparatus being configured to detect whether or not the apparatus in the local area network has failed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210985110.2A CN115361199A (en) | 2022-08-17 | 2022-08-17 | Abnormality detection apparatus and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210985110.2A CN115361199A (en) | 2022-08-17 | 2022-08-17 | Abnormality detection apparatus and system |
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| CN115361199A true CN115361199A (en) | 2022-11-18 |
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| CN202210985110.2A Pending CN115361199A (en) | 2022-08-17 | 2022-08-17 | Abnormality detection apparatus and system |
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