CN113127297A - Server cover opening detection method and server - Google Patents
Server cover opening detection method and server Download PDFInfo
- Publication number
- CN113127297A CN113127297A CN202110340422.3A CN202110340422A CN113127297A CN 113127297 A CN113127297 A CN 113127297A CN 202110340422 A CN202110340422 A CN 202110340422A CN 113127297 A CN113127297 A CN 113127297A
- Authority
- CN
- China
- Prior art keywords
- server
- voltage
- read voltage
- threshold
- response
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 230000004044 response Effects 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000006698 induction Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000000571 coke Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 229910002113 barium titanate Inorganic materials 0.000 claims description 8
- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims description 8
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 claims description 7
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 description 7
- 238000004590 computer program Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910003781 PbTiO3 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 235000001892 vitamin D2 Nutrition 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3044—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is the mechanical casing of the computing system
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3058—Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/327—Alarm or error message display
Abstract
The invention provides a server uncovering detection method and a server, wherein the method comprises the following steps: fixedly arranging an induction chip made of a material containing a pyroelectric effect on a mainboard of a server; the method comprises the steps that the coke electric quantity of an upper cover of a server is sensed through a sensing chip, and the sensed coke electric quantity is converted into voltage; reading the converted voltage and comparing the read voltage with a threshold value; an alarm signal is issued in response to the read voltage exceeding a threshold. By using the scheme of the invention, the upper cover of the server can be wirelessly monitored, the use of the connector and the cable is reduced, the design complexity is simplified, the safety of the server is improved, and the reliability and the quality of the product are improved.
Description
Technical Field
The field relates to the field of computers, and more particularly to a method and a server for server decapping detection.
Background
The server usually realizes the function of server cover opening detection through a hardware circuit and related firmware, and damage of the server and data loss caused by opening the upper cover due to unknown reasons are prevented. The connector and the cable can be included in the hardware design of the common traditional cover opening detection, after the upper cover is opened, the state of the cable changes, so that the voltage change detected by detection chips such as BMC (baseboard management controller) or CPLD (complex programmable logic device) or the like is caused, and the fact that the upper cover is opened by an unknown reason is known.
The prior art needs to have connectors and cables for detecting the cover opening warning, and the matching of related circuits and firmware. The connectors require space and the cables often interfere with system configuration and assembly, limiting the design.
Disclosure of Invention
In view of this, an object of the embodiments of the present invention is to provide a method for detecting a server cover opening and a server, which can wirelessly monitor a server cover by using the technical solution of the present invention, reduce the use of connectors and cables, simplify the design complexity, improve the server security, and improve the reliability and quality of products.
In view of the above object, an aspect of the embodiments of the present invention provides a method for server decapping detection, including the following steps:
fixedly arranging an induction chip made of a material containing a pyroelectric effect on a mainboard of a server;
the method comprises the steps that the coke electric quantity of an upper cover of a server is sensed through a sensing chip, and the sensed coke electric quantity is converted into voltage;
reading the converted voltage and comparing the read voltage with a threshold value;
an alarm signal is issued in response to the read voltage exceeding a threshold.
According to one embodiment of the present invention, the material from which the sensor chip is made comprises a compound of barium titanate, lead titanate and lead zirconate titanate.
According to an embodiment of the present invention, sensing the amount of power of the server top cover through the sensing chip and converting the sensed amount of power of the power of:
and inputting the acquired electric quantity into a current-voltage conversion line to be converted into voltage.
According to one embodiment of the invention, issuing an alert signal in response to the read voltage exceeding the threshold comprises:
covering an upper cover of the server on the server to measure the maximum value and the minimum value of the voltage converted by the induction chip within the preset time;
comparing the read voltage with a maximum value and a minimum value;
an alarm signal is issued in response to the read voltage being greater than a maximum value or less than a minimum value.
According to one embodiment of the invention, issuing an alert signal in response to the read voltage exceeding the threshold comprises:
in response to the read voltage exceeding the threshold, sending information of the alarm signal to a mailbox and a communication device of an administrator through a network and displaying the information of the alarm signal on a display of the server.
In another aspect of the embodiments of the present invention, there is also provided a server, including:
the induction chip is made of a material containing the pyroelectric effect and is fixedly arranged on a mainboard of the server;
the sensing chip is configured to sense the amount of electricity burnt on the upper cover of the server, convert the acquired amount of electricity burnt into a voltage, read the converted voltage, compare the read voltage with a threshold value, and send an alarm signal in response to the read voltage exceeding the threshold value.
According to one embodiment of the present invention, the material from which the sensor chip is made comprises a compound of barium titanate, lead titanate and lead zirconate titanate.
According to an embodiment of the present invention, sensing the amount of power of the server upper cover and converting the sensed amount of power of the power into a voltage includes:
and inputting the induced coke quantity into a current-voltage conversion circuit to be converted into voltage.
According to one embodiment of the invention, issuing an alert signal in response to the read voltage exceeding the threshold comprises:
covering an upper cover of the server on the server to measure the maximum value and the minimum value of the voltage converted by the induction chip within the preset time;
comparing the read voltage with a maximum value and a minimum value;
an alarm signal is issued in response to the read voltage being greater than a maximum value or less than a minimum value.
According to one embodiment of the invention, issuing an alert signal in response to the read voltage exceeding the threshold comprises:
in response to the read voltage exceeding the threshold, sending information of the alarm signal to a mailbox and a communication device of an administrator through a network and displaying the information of the alarm signal on a display of the server.
The invention has the following beneficial technical effects: according to the server uncovering detection method provided by the embodiment of the invention, the induction chip made of the material containing the pyroelectric effect is fixedly arranged on the main board of the server; acquiring the coke quantity of an upper cover of an induction server of an induction chip and converting the acquired coke quantity into voltage; reading the converted voltage and comparing the read voltage with a threshold value; the technical scheme of sending the alarm signal in response to the fact that the read voltage exceeds the threshold value can be used for wirelessly monitoring the upper cover of the server, reducing the use of connectors and cables, simplifying the design complexity, improving the safety of the server and improving the reliability and quality of products.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a method of server decap detection according to one embodiment of the invention;
fig. 2 is a schematic diagram of a server according to one embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
In view of the above object, a first aspect of the embodiments of the present invention provides an embodiment of a method for server decapping detection. Fig. 1 shows a schematic flow diagram of the method.
As shown in fig. 1, the method may include the steps of:
s1, an induction chip made of a material containing a pyroelectric effect is fixedly arranged on a main board of a server, the material containing the pyroelectric effect is made into the induction chip, the material can be a compound of barium titanate (BaTiO3), lead titanate (PbTiO3) and lead zirconate titanate (Pb (ZrTi) O3, PZT), and the titanium or zirconium can generate electric dipole moment at the asymmetric position of unit lattices;
s2, the method includes that the inductive chip induces the tar quantity of the upper cover of the server and converts the induced tar quantity into voltage, when the tar quantity change is sensed, the data which can be read by a detection chip (such as BMC or CPLD) is converted through a related conversion circuit, so that whether the electricity exists or the Joule change exists can be known, and further whether the sensing chip reads the state change of the upper cover can be known, the tar quantity conversion into voltage can use a traditional current-voltage conversion circuit, namely, an amplifier which converts current into voltage is used for conversion;
s3 reading the converted voltage and comparing the read voltage with a threshold value, the threshold value needs to be measured in advance, and the measurement is performed once without changing the server component, the threshold value is measured by covering the server upper cover on the server to measure the maximum value and the minimum value of the voltage converted by the sensing chip within a preset time, the maximum value and the minimum value are the threshold value, and the read voltage and the threshold value need to be compared with the maximum value and the minimum value respectively when being compared;
s4 responds to the read voltage exceeding the threshold value, sends out an alarm signal, if the read voltage is larger than the maximum value or smaller than the minimum value, the read voltage exceeds the threshold value, the alarm signal needs to be sent out, the information of the alarm signal can be sent to the mailbox and the communication equipment of the administrator through the network, and the information of the alarm signal is displayed on the display of the server.
Through the technical scheme of the invention, the upper cover of the server can be wirelessly monitored, the use of connectors and cables is reduced, the design complexity is simplified, the safety of the server is improved, and the reliability and the quality of products are improved.
In a preferred embodiment of the present invention, the material from which the sensor chip is made comprises a compound of barium titanate, lead titanate and lead zirconate titanate. The titanium or zirconium can generate electric dipole moment at the asymmetric position of the unit lattice, and in the polarization process, an external electric field can change the arrangement direction of the electric dipole moment, so that the change of induction electricity or the change of joule can be realized.
In a preferred embodiment of the present invention, sensing the amount of power of the server top cover through the sensing chip and converting the sensed amount of power of the power of:
and inputting the induced coke quantity into a current-voltage conversion circuit to be converted into voltage. The conversion circuit may be a conventional current-to-voltage conversion circuit, i.e., an amplifier that converts current to voltage.
In a preferred embodiment of the present invention, issuing an alert signal in response to the read voltage exceeding the threshold comprises:
covering an upper cover of the server on the server to measure the maximum value and the minimum value of the voltage converted by the induction chip within the preset time;
comparing the read voltage with a maximum value and a minimum value;
an alarm signal is issued in response to the read voltage being greater than a maximum value or less than a minimum value. The threshold value needs to be measured in advance, the measurement is only needed once under the condition that the server component is not changed, the threshold value measuring method is that the upper cover of the server is covered on the server to measure the maximum value and the minimum value of the voltage converted by the induction chip within the preset time, the maximum value and the minimum value are the threshold value, the read voltage needs to be respectively compared with the maximum value and the minimum value when being compared with the threshold value, if the read voltage is larger than the maximum value or smaller than the minimum value, the read voltage exceeds the threshold value, and an alarm signal needs to be sent out.
In a preferred embodiment of the present invention, issuing an alert signal in response to the read voltage exceeding the threshold comprises:
in response to the read voltage exceeding the threshold, sending information of the alarm signal to a mailbox and a communication device of an administrator through a network and displaying the information of the alarm signal on a display of the server.
Through the technical scheme of the invention, the upper cover of the server can be wirelessly monitored, the use of connectors and cables is reduced, the design complexity is simplified, the safety of the server is improved, and the reliability and the quality of products are improved.
It should be noted that, as will be understood by those skilled in the art, all or part of the processes in the methods of the above embodiments may be implemented by instructing relevant hardware through a computer program, and the above programs may be stored in a computer-readable storage medium, and when executed, the programs may include the processes of the embodiments of the methods as described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like. The embodiments of the computer program may achieve the same or similar effects as any of the above-described method embodiments.
Furthermore, the method disclosed according to an embodiment of the present invention may also be implemented as a computer program executed by a CPU, and the computer program may be stored in a computer-readable storage medium. The computer program, when executed by the CPU, performs the above-described functions defined in the method disclosed in the embodiments of the present invention.
In view of the above object, a second aspect of the embodiments of the present invention proposes a server 1, the server 1 including:
the induction chip 2 made of a material containing the pyroelectric effect is fixedly arranged on a mainboard 3 of the server;
wherein, the sensing chip 2 is configured to: the coke amount of the upper cover 4 of the induction server is converted into voltage; reading the converted voltage and comparing the read voltage with a threshold value; an alarm signal is issued in response to the read voltage exceeding a threshold.
In a preferred embodiment of the present invention, the material from which the sensor chip is made comprises a compound of barium titanate, lead titanate and lead zirconate titanate.
In a preferred embodiment of the present invention, sensing the amount of power of the server upper cover and converting the sensed amount of power of the power into a voltage comprises:
and inputting the induced coke quantity into a current-voltage conversion circuit to be converted into voltage.
In a preferred embodiment of the present invention, issuing an alert signal in response to the read voltage exceeding the threshold comprises:
covering an upper cover of the server on the server to measure the maximum value and the minimum value of the voltage converted by the induction chip within the preset time;
comparing the read voltage with a maximum value and a minimum value;
an alarm signal is issued in response to the read voltage being greater than a maximum value or less than a minimum value.
In a preferred embodiment of the present invention, issuing an alert signal in response to the read voltage exceeding the threshold comprises:
in response to the read voltage exceeding the threshold, sending information of the alarm signal to a mailbox and a communication device of an administrator through a network and displaying the information of the alarm signal on a display of the server.
The embodiments described above, particularly any "preferred" embodiments, are possible examples of implementations and are presented merely to clearly understand the principles of the invention. Many variations and modifications may be made to the above-described embodiments without departing from the spirit and principles of the technology described herein. All such modifications are intended to be included within the scope of this disclosure and protected by the following claims.
Claims (10)
1. A server uncovering detection method is characterized by comprising the following steps:
fixedly arranging an induction chip made of a material containing a pyroelectric effect on a mainboard of a server;
the induction chip is used for inducing the coke quantity of the upper cover of the server and converting the induced coke quantity into voltage;
reading the converted voltage and comparing the read voltage to a threshold;
issuing an alert signal in response to the read voltage exceeding the threshold.
2. The method of claim 1, wherein the sensing chip is made of a material comprising a compound of barium titanate, lead titanate, and lead zirconate titanate.
3. The method of claim 1, wherein sensing the amount of power of the server top lid and converting the sensed amount of power of the server top lid into a voltage by the sensing chip comprises:
and inputting the induced coke quantity into a current-voltage conversion circuit to be converted into voltage.
4. The method of claim 1, wherein issuing an alert signal in response to the read voltage exceeding the threshold comprises:
covering the server upper cover on the server, and measuring the maximum value and the minimum value of the voltage converted by the induction chip within preset time;
comparing the read voltage to a maximum value and a minimum value;
issuing an alert signal in response to the read voltage being greater than the maximum value or less than the minimum value.
5. The method of claim 1, wherein issuing an alert signal in response to the read voltage exceeding the threshold comprises:
and in response to the read voltage exceeding the threshold, sending information of the alarm signal to a mailbox and a communication device of an administrator through a network and displaying the information of the alarm signal on a display of the server.
6. A server, characterized in that the server comprises:
the induction chip made of the material containing the pyroelectric effect is fixedly arranged on the mainboard of the server,
wherein the sensing chip is configured to sense a level of focus of the server upper cover and convert the sensed level of focus to a voltage, read the converted voltage and compare the read voltage with a threshold, and issue an alarm signal in response to the read voltage exceeding the threshold.
7. The server according to claim 6, wherein the sensing chip is made of a material comprising a compound of barium titanate, lead titanate, and lead zirconate titanate.
8. The server of claim 6, wherein sensing the amount of power of the server top cover and converting the sensed amount of power to a voltage comprises:
and inputting the induced coke quantity into a current-voltage conversion circuit to be converted into voltage.
9. The server of claim 6, wherein in response to the read voltage exceeding the threshold, issuing an alert signal comprises:
measuring the maximum value and the minimum value of the voltage converted by the induction chip within a preset time on the server by covering the upper cover of the server;
comparing the read voltage to a maximum value and a minimum value;
issuing an alert signal in response to the read voltage being greater than the maximum value or less than the minimum value.
10. The server of claim 6, wherein in response to the read voltage exceeding the threshold, issuing an alert signal comprises:
and in response to the read voltage exceeding the threshold, sending information of the alarm signal to a mailbox and a communication device of an administrator through a network and displaying the information of the alarm signal on a display of the server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110340422.3A CN113127297A (en) | 2021-03-30 | 2021-03-30 | Server cover opening detection method and server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110340422.3A CN113127297A (en) | 2021-03-30 | 2021-03-30 | Server cover opening detection method and server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113127297A true CN113127297A (en) | 2021-07-16 |
Family
ID=76774865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110340422.3A Pending CN113127297A (en) | 2021-03-30 | 2021-03-30 | Server cover opening detection method and server |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113127297A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070089011A1 (en) * | 2005-09-26 | 2007-04-19 | Intel Corporation | Method and apparatus to monitor stress conditions in a system |
| CN102060325A (en) * | 2010-11-12 | 2011-05-18 | 北京理工大学 | Tetragonal-phase barium titanate nanorod array and preparation method thereof |
| CN102542197A (en) * | 2011-12-05 | 2012-07-04 | 深圳市莱克科技有限公司 | Sensitive data protection system |
| CN104516026A (en) * | 2013-09-30 | 2015-04-15 | 深圳市伊爱高新技术开发有限公司 | Photoelectric cover opening detection circuit |
| CN111158976A (en) * | 2019-12-10 | 2020-05-15 | 苏州浪潮智能科技有限公司 | Server cabinet monitoring alarm system and method |
| CN112231781A (en) * | 2020-10-16 | 2021-01-15 | 苏州浪潮智能科技有限公司 | Anti-theft method for edge computing server and server |
-
2021
- 2021-03-30 CN CN202110340422.3A patent/CN113127297A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070089011A1 (en) * | 2005-09-26 | 2007-04-19 | Intel Corporation | Method and apparatus to monitor stress conditions in a system |
| CN102060325A (en) * | 2010-11-12 | 2011-05-18 | 北京理工大学 | Tetragonal-phase barium titanate nanorod array and preparation method thereof |
| CN102542197A (en) * | 2011-12-05 | 2012-07-04 | 深圳市莱克科技有限公司 | Sensitive data protection system |
| CN104516026A (en) * | 2013-09-30 | 2015-04-15 | 深圳市伊爱高新技术开发有限公司 | Photoelectric cover opening detection circuit |
| CN111158976A (en) * | 2019-12-10 | 2020-05-15 | 苏州浪潮智能科技有限公司 | Server cabinet monitoring alarm system and method |
| CN112231781A (en) * | 2020-10-16 | 2021-01-15 | 苏州浪潮智能科技有限公司 | Anti-theft method for edge computing server and server |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3405800B1 (en) | Method and apparatus for parallel operation of packet energy transfer receivers | |
| US7385491B2 (en) | Tamper monitor circuit | |
| US11877087B2 (en) | Methods and systems for remote monitoring of electrical equipment | |
| EP2529241B1 (en) | Electrical connection quality detection | |
| US9772922B2 (en) | Protection method for data information about electronic device and protection circuit therefor | |
| US20210215545A1 (en) | Temperature threshold determining device, temperature abnormality determining system, temperature threshold determining method | |
| CA2971025A1 (en) | Passive wireless monitoring of individual capacitor cans | |
| EA013196B1 (en) | Electrical fault restricting system | |
| US20240126639A1 (en) | Server board card apparatus, detection method therefor, and detection device thereof, and storage medium | |
| CN109828887A (en) | A kind of server ON/OFF case alarm device, system and method | |
| US11164430B2 (en) | Electronic device arrangement, method for operating an electronic device arrangement, security device, and automated teller machine | |
| CN113127297A (en) | Server cover opening detection method and server | |
| CN112560124A (en) | Server and cover opening alarm system thereof | |
| CN116698198A (en) | Temperature monitoring system and temperature monitoring method thereof | |
| US20160077161A1 (en) | Method for improved diagnostic in determining and preventing inverter faults | |
| CN113315236B (en) | Low-voltage power distribution cabinet remote diagnosis system and method | |
| CN110568323A (en) | Switch cabinet partial discharge detection system and switch cabinet partial discharge detection method | |
| CN113269941A (en) | Electrical fire alarm device based on multi-information fusion judgment and control method | |
| CN113125847A (en) | Method and device for processing direct current signal | |
| CN113748390A (en) | Substation equipment monitoring using SCADA system | |
| CN108332836B (en) | Anti-cheating intelligent automatic weighing system of internet of things | |
| CN111027109A (en) | Product safety monitoring method, device and system | |
| CN113937622B (en) | Electric shock protection method, electronic equipment and discharge equipment | |
| KR102247156B1 (en) | Arrester condition monitoring device with leakage current monitoring and surge counting | |
| CN201387657Y (en) | Line type heat fire detector with terminal capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210716 |