CN116301232A - System for preventing high-pressure inflation of physically detected computer case and monitoring method thereof - Google Patents
System for preventing high-pressure inflation of physically detected computer case and monitoring method thereof Download PDFInfo
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- CN116301232A CN116301232A CN202310213429.8A CN202310213429A CN116301232A CN 116301232 A CN116301232 A CN 116301232A CN 202310213429 A CN202310213429 A CN 202310213429A CN 116301232 A CN116301232 A CN 116301232A
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- 230000005672 electromagnetic field Effects 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 1
- 230000001953 sensory effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 description 8
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/18—Packaging or power distribution
- G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/86—Secure or tamper-resistant housings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention discloses a system for preventing high-pressure inflation of a computer case for physical detection and a monitoring method thereof. The system comprises a case shell for installing units required by the operation of a computer, and is characterized in that the case shell is of a sealing structure capable of bearing a plurality of atmospheric pressures, and a sensing control device is arranged in the case shell; the case shell is provided with an airtight valve for injecting gas into the case shell through the airtight valve; the sensing control device is internally provided with an air pressure monitoring unit for monitoring the air pressure in the case shell, and the sensing control device determines whether an alarm is generated according to the change of the air pressure value; the sensing control device also comprises a battery unit which is used for supplying power to the sensing control device. The invention judges the integrity of the case by monitoring the maintenance or change of the air pressure condition in the case, further detects whether the computer is subject to physical attack, alarms in time and prevents the sensitive information stored in the computer from being stolen.
Description
Technical Field
The invention relates to the field of information safety, in particular to a system for preventing high-pressure inflation of a computer case by physical detection and a monitoring method thereof, which can detect invasive physical detection or attack and prevent sensitive information in a computer from being leaked caused by the attack.
Background
The most important premise of information system safety is the physical safety of computer equipment, and if the safety of the physical equipment cannot be ensured, more powerful operating system safety or network safety means are also used as an air pavilion and an unprecedented means. To protect confidential or private information stored in a computer, a computer case is first used as a security boundary. With the development of technology, means of attackers are also becoming higher and higher, and it is difficult to protect against attacks with high levels and high technical contents, such as micro-probes, nano-robots, etc., so that a chassis may be perforated or even disassembled and stretched into the chassis for physical detection or destruction.
The protection of the computer case mainly surrounds modes of dust prevention, high strength, anti-theft lock and the like, and some cases which are sealed or airtight can only be provided with no visible gaps or holes, so that particles or dust with larger size can be prevented from entering, but snoop attack caused by drilling and forced disassembly still cannot be avoided.
Disclosure of Invention
In order to overcome the defect of the existing computer case design that the existing computer case is protected against physical destructive attacks (such as breaking and disassembling operations of drilling, cutting and the like), the invention aims to provide a system for preventing the high-pressure inflation of a computer case by physical detection and a monitoring method thereof. The invention uses the specially designed airtight case, maintains the high air pressure state in the case all the time in the working process of the computer, and judges the integrity of the case by monitoring the maintenance or change of the air pressure state in the case, thereby detecting whether the computer is subject to physical attack, so as to make early warning and emergency disposal in time when the case is subject to any form of destructive physical attack, and prevent the sensitive information stored in the computer from being stolen.
The technical scheme adopted for solving the technical problems is as follows:
a system for preventing high-pressure inflation of a physically detected computer case is characterized by comprising a case shell and a sensing control device. The chassis housing is completely sealed and sufficiently strong that the sensing and control device is inside the chassis housing and the remaining cavity inside can be used to house computer motherboards and other components. The case shell can bear a plurality of (more than one) atmospheric pressure without leakage of gas; the airtight valve is installed on the case body, and compressed gas can be injected into the case body through the airtight valve to keep the state higher than the air pressure outside the case body. The sensing control device is provided with air pressure measurement and other sensors, including but not limited to barometer, pressure sensor and other elements, for measuring air pressure value in the case shell or sensing air pressure change in the case shell. The sensor control device is also internally provided with a battery, and can supply power for the device under the condition of no external power supply, thereby ensuring uninterrupted measurement of the air pressure state in the case shell.
Further, the system further includes one or more openings in the housing for assembling wires or physical interface devices that need to be connected through the interior of the chassis to the outside, including but not limited to power lines, network lines, optical fibers, serial lines, sensor connection lines, indicator lights, or other types of connections and interfaces. The hole for the wire to pass through the case shell needs to be airtight, and the connection part of the wire and the element in the case and the connection part of the wire outside the case and other entities or the end part exposed outside the case need to ensure perfect air tightness, so that any air communication channel exists inside and outside the case shell is avoided, and the inside of the case shell is ensured to maintain a high-pressure sealing environment.
Further, the system further comprises various sensing devices such as a photosensitive sensor, a temperature sensor, a gyroscope, an accelerometer, an electromagnetic field intensity sensor and a radiation intensity sensor which are arranged in the sensing control device module and used for detecting changes of computer operation environment attributes caused by various potential physical attacks or unexpected disasters, wherein the photosensitive sensor can sense changes of illumination intensity when the case is opened to view or abnormal events such as unexpected fires of devices in the case occur, the temperature sensor can sense abnormal changes of temperature when fire or liquid nitrogen is frozen and attacked, the gyroscope and the accelerometer can judge whether the case is moved or impacted by external force through measuring inclination or movement of the case, and the electromagnetic field intensity and the radiation intensity sensor can find potential malicious detection through measuring magnetic field changes or ray intensities in the environment, for example, an attacker uses the detector to conduct perspective or scanning detection on internal structures of the case.
Furthermore, the system also comprises a status indicator lamp or an alarm device arranged on the case, which can indicate the safe status of the case or prompt or alarm when the sealing performance of the case is destroyed or the internal air pressure value is abnormally changed.
A method for monitoring a system for preventing high-pressure inflation of a physically detected computer case comprises the following steps:
1) And (2) mounting: completing the assembly of the chassis, and performing airtight treatment on the chassis shell;
2) And (3) inflation: injecting compressed gas into the case through an airtight valve on the case until the pressure difference between the inside and the outside of the case reaches a preset reasonable range; checking the air tightness of the case, and ensuring that the high-pressure closed state in the case can be maintained;
3) Armed: and starting the computer to ensure that the sensing control device is configured and started after the battery works normally and the electric quantity is sufficient. The sensing control device can only provide key information services for the computer system after the sensing control device is completely armed;
4) And (3) running: in the running process of the computer, the sensing control device continuously monitors the air pressure value or the air pressure difference inside and outside the case in real time, ensures that the air pressure in the case is always stable in a reasonable range, and reminds a user of air charging and supercharging when the air pressure is lower than a limiting value. When the closed state of the case is not destroyed, the normal running state can be maintained;
5) And (3) responding: during the operation of the sensing control device, if the air pressure is detected to be obviously changed or deviate from a specified normal interval, the sensing control device starts a safety treatment measure, including clearing sensitive contents in the sensing control device and sending out an alarm signal, and if a computer in the box is running, the state of the computer is notified to change, and sensitive information in the computer is required to be deleted.
Further, in the step 2), the gas injected into the chassis is nitrogen or inert gas, so as to reduce the risk of oxidation loss of components in the chassis caused by the gas.
Further, after step 2), a device may be added to the airtight valve, so that once the air in the cabinet is discharged, the device may destroy the trace and be irrecoverable, and the effect of the device is that if the cabinet is deflated or detached, the trace may be irreversibly destroyed.
Further, in the method, in steps 4) to 5), when the computer enters and maintains a normal running state, the detection of the environment includes using other sensors to check other attributes of the environment, such as illumination intensity, temperature and humidity, electromagnetic field intensity, radiation intensity, inclination and movement state, and the like, and ensuring that all indexes are kept in a normal range, and once the change of the value or state of the environmental characteristic meets certain triggering conditions, judging that the risk of physical attack exists, for example, when the photosensitive sensor senses that the environmental illumination is obviously strong, the potential reasons may be that the chassis is illegally opened and checked or abnormal events such as unexpected firing of devices in the chassis occur; when the ambient temperature suddenly changes or exceeds a preset normal operation temperature range, the computer possibly encounters fire or liquid nitrogen freezing attack; the electromagnetic field intensity or radiation intensity measuring device can judge that the computer is likely to suffer malicious scanning detection or structural perspective according to the measured magnetic field change or obvious change or mutation of the ray intensity; when gyroscopes and accelerometers measure tilting rotations or speed changes of the chassis, it can be inferred that the otherwise statically placed chassis is likely to be damaged by illegal movement or physical impact, etc. When the sensing control device detects any abnormal change through the sensor, the safe running environment of the computer is inferred to be possibly threatened, so that the safety of the core sensitive information of the computer is guaranteed, the sensing control device enters an emergency response state, and corresponding safety treatment measures are adopted, including, but not limited to, deleting the sensitive information, sending early warning information to a main controller of the computer, sending an alarm by using an indicator light or a loudspeaker and the like.
Further, if the sensor control device is provided with other types of sensors besides the air pressure sensor measuring device, the arming in the step 3) of the method can be further classified into hard arming and soft arming. The hard armed is completed before the computer is carried to the site, that is, the sensor monitoring and alarming functions such as air pressure, illumination intensity, case opening and the like are started, the computer has completed airtight packaging, pressurized air inflation and started the sensor control device, sensitive information is stored, the computer needs to be fixedly installed at other places after moving and transporting on physical space, at this time, the sensor control device only starts a plurality of sensors which are necessary for guaranteeing basic safety, including an air pressure sensor, a photosensitive sensor and the like, so as to detect whether the case is illegally opened during transportation, but because the case is not yet fixedly installed, the safety monitoring items such as a gyroscope, an accelerometer, magnetic field detection, temperature detection and the like can not be started first (otherwise, the self-destruction can be easily triggered by abnormal misjudgment caused by environmental change during transportation). After the computer is installed on site, the soft armed can selectively start monitoring and alarming on environmental attributes such as movement, inclination, vibration, temperature and humidity change, magnetic field radiation intensity and the like according to the running requirement of the computer; that is, various sensors except the pressure sensor installed in the sensor control device can be configured by a computer user or an administrator in a software mode, and the sensors which are not set can not be used as condition judgment items for abnormality detection and can not trigger treatment measures such as safety warning, self-destruction and the like when the sensors are selected to be started or not started in soft armed.
Further, in the method in the steps 4) to 5), the sensing control device can obtain the air pressure value and the temperature value inside and outside the case more accurately through the sensor or the measuring device, and calculate the air pressure change trend and the theoretical value under different temperatures according to a physical formula, so that the reasonable value range of the air pressure in the closed case is judged more accurately, the misjudgment on the air pressure change condition caused by sudden temperature change due to environmental burst or device running state change is avoided, and the judging capability on whether the tightness of the case is intact or not and the early warning accuracy and sensitivity are improved.
The invention has the following advantages:
the invention has the advantages that the invention can construct a universal physical protection means for various hosts or electronic devices, uses the maintenance of the high air pressure state in the case shell as the judgment basis of the physical integrity of the case shell, does not need to arrange a high-cost dense circuit network or sensing detection equipment, can realize the monitoring of the physical safety of the case by only needing one air pressure detection or sensing device, has low economic cost and low power consumption, and can detect any (even tiny) destructive behavior of the case shell, thereby preventing various forms of invasive physical detection or attack.
Drawings
FIG. 1 is a schematic diagram of the system appearance of a computer chassis that prevents high pressure inflation of physical detection.
FIG. 2 is a schematic diagram of an airtight pressurization system with the addition of further functions and components to prevent physical detection.
Fig. 3 is a flow chart of the monitoring method of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are given by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, a schematic diagram of the appearance of a system for preventing high-pressure inflation of a physically detected computer case is shown. The main body of the system is a case shell 1, and the case shell 1 is characterized by complete sealing, good air tightness and capability of bearing and maintaining the state of the inside of the case higher than one atmosphere. At least one airtight valve 101 is provided on the housing to inject compressed gas into the housing through the valve port, so that the air pressure is higher than the air pressure outside the housing. One or a plurality of holes 102 for the cables 3 required by the operation of the computer internal main board can be reserved on the case shell, but the necessary sealing treatment is required for the holes and the cables, so that the airtight sealing of the whole case shell can not be damaged.
The system also comprises a sensing control device 2, wherein the sensing control device 2 comprises a barometric pressure measurement module, a battery and a control module. The object monitored by the sensor control device 2 may be either an actual accurate value of the air pressure or a perception or detection of a change in air pressure. The sensing control device 2 also comprises a battery as a standby power supply of the device, so that the device can be powered under the condition of no external power supply, and the uninterrupted measurement of the air pressure state in the case shell is ensured. The sensing control device 2 is connected with the computer main board 4, can supply power to the sensing control device 2, allows the computer main board 4 to inquire the air pressure state of the sensing control device, and sends an alarm or a message for notifying deletion of sensitive data to the computer main board 4 when the sensing control device 2 detects that the air pressure abnormality judgment case is possibly damaged.
Further, as shown in fig. 2, the system for preventing high-pressure inflation of the computer case for physical detection can also add more modules or components, so as to realize an embodiment with more functions. In addition to the airtight valve 101 and the airtight hole 102, the casing 1 may be provided with an indicator light 103 for indicating the operation state of the computer or giving an early warning when the air tightness of the casing is detected to be broken. The sensing control device 2 is used for detecting whether the case is physically attacked or detected through uninterrupted environment monitoring and performing emergency treatment when abnormality is found. Specifically, the sensor control device 2 may include a control module 201, a battery 202, a barometric pressure measurement device 203, and other sensors 204. In addition to the foregoing detection of the air pressure state by the air pressure measurement device 203, the sensing control device 2 may further add various other sensor modules 204 according to the type of physical attack to be protected and the security level of the computer, and the items monitored by the sensor may include, but are not limited to, light intensity, temperature, magnetic field intensity, noise, radiation, inclination of the chassis, acceleration, and the like. In order to ensure that uninterrupted environmental monitoring is completed, the battery 202 is used for supplying power to a control chip in the sensing control device and various sensors including the air pressure detection device, so that the detection and protection of the integrity of the case can be realized under the condition that a computer is shut down or an external power supply is not provided, and the control chip can be supported to complete necessary safety disposal measures or even self-destruction operation after the power supply is cut off due to physical attack. The sensing control device 2 is connected with the indicator light 103 on the chassis and the computer motherboard 4 in the chassis, and can give an alarm, inform the computer host to stop running or execute abnormal handling operations such as deleting sensitive data when the environment parameter is monitored to be abnormal and the potential physical attack is inferred.
Referring to fig. 3, a method for monitoring a system for preventing high-pressure inflation of a computer chassis by physical detection includes a chassis assembly stage and a start-up operation stage, and the specific steps are as follows:
step 1: completing the assembly of the chassis, and installing all required electronic elements, detection devices, heat dissipation devices, various cables and the like in the chassis;
step 2: the chassis shell is completely encapsulated and closed, including the processing and detection of the air tightness of all joints, various openings which may exist on the chassis shell and all cables which are connected out;
step 3: the compressed gas is filled into the case through the airtight valve on the case, and the gas filled in the case can be air, more preferably, nitrogen or inert gas, so that elements in the case are better protected, and risks of oxidization or corrosion and the like are reduced;
step 4: checking whether the air pressure in the case reaches a preset state or not, and monitoring for a certain time is needed, so that the case is ensured to be perfect in air tightness, and the high-pressure state in the case can be kept in an expected range. If the air tightness is not ideal, returning to the step 2 to strengthen the confidential treatment of the case again; if the air pressure state meets the preset detection standard, the chassis is assembled to be qualified, and the preparation of the computer before formal starting is completed;
step 5: starting a computer;
step 6: before and during the operation of the computer, the air pressure value or the air pressure difference inside and outside the case is monitored continuously in real time. If the air pressure in the case is always stable within a reasonable range, namely, the closed state of the case is not destroyed, the step 7.1 is entered; if the air pressure is detected to be obviously changed or deviate from a normal interval in the operation process, the case is possibly damaged physically to cause the tightness of the case to be damaged, and the step 7.2 is performed;
step 7.1: the air tightness detection of the chassis is passed, the computer can maintain the normal running state, and the air tightness detection of the next round is continued (the step 6 is recycled);
step 7.2: the airtight state of the case is abnormal, and at the moment, the sensing control device takes safety treatment measures, including operations such as changing the state of the indicator lamp, sending an alarm signal, deleting sensitive information stored in the computer and the like.
Although specific embodiments of the invention have been disclosed for illustrative purposes, it will be appreciated by those skilled in the art that the invention may be implemented with the help of a variety of examples: various alternatives, variations and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will have the scope indicated by the scope of the appended claims.
Claims (9)
1. The system for preventing the high-pressure inflation of the computer case of physical detection comprises a case shell for installing units required by the operation of a computer, and is characterized in that the case shell is of a sealing structure capable of bearing a plurality of atmospheric pressures, and a sensing control device is arranged in the case shell; the case shell is provided with an airtight valve for injecting gas into the case shell through the airtight valve; the sensing control device is internally provided with an air pressure monitoring unit for monitoring the air pressure in the case shell, and the sensing control device determines whether an alarm is generated according to the change of the air pressure value; the sensing control device also comprises a battery unit which is used for supplying power to the sensing control device.
2. The system of claim 1, wherein the chassis housing has one or more interfaces thereon for connecting devices within the chassis housing with external devices; the interface is connected with the case shell in a sealing way.
3. The system of claim 1, wherein the sensing control device comprises a photosensitive sensor, a temperature sensor, a mobile monitoring unit, an electromagnetic field intensity sensor, and a radiation intensity sensor; the photosensitive sensor is used for sensing the illumination intensity in the case shell, and generating an alarm message when the illumination intensity reaches a set intensity threshold value or the illumination intensity change exceeds a set intensity change threshold value; the temperature sensor is used for sensing the temperature in the case shell, and generating an alarm message when the temperature reaches a set temperature threshold or the temperature change exceeds a set temperature change threshold; the mobile monitoring unit is used for monitoring the inclination or moving state of the case shell, and generating an alarm message when the inclination change exceeds a set inclination change threshold value or moves; the electromagnetic field intensity sensor is used for measuring the magnetic field intensity in the case shell, and generating an alarm message when the magnetic field intensity reaches a set magnetic field threshold value or the magnetic field intensity change exceeds the set magnetic field change threshold value; the radiation intensity sensor is used for measuring the radiation intensity in the case shell, and generating an alarm message when the radiation intensity reaches a set radiation intensity threshold value or the radiation intensity change exceeds a set radiation change threshold value; the mobile monitoring unit is a gyroscope or an accelerometer.
4. The system according to claim 1, wherein a status indicator light and an alarm device connected to the sensing control device are provided on the housing of the case for indicating a safe status or alarm of the case.
5. The system of claim 1, wherein the gas injected into the chassis housing through the gas tight valve is nitrogen or an inert gas.
6. A method of monitoring based on the system of claim 1, comprising the steps of:
1) Performing sealing treatment on the case shell provided with the unit and the sensing control device required by the operation of the computer;
2) Injecting gas into the case shell through the airtight valve until the pressure difference between the inside and the outside of the case shell reaches a preset range;
3) Starting a computer, configuring and starting the sensing control device;
4) In the running process of the computer, the sensing control device monitors the air pressure values inside and outside the case shell in real time, and if the air pressure in the case shell exceeds a set range or the air pressure difference between the inside and outside is smaller than a set threshold value, a safety disposal measure is started.
7. The method of claim 6, wherein the safety handling measures include clearing setup sensitive content in the sensory control device and issuing an alarm signal informing a computer to delete setup sensitive information in the computer.
8. The method of claim 6, wherein the sensing control device comprises a photosensitive sensor, a temperature sensor, a mobile monitoring unit, an electromagnetic field intensity sensor, and a radiation intensity sensor; the photosensitive sensor is used for sensing the illumination intensity in the case shell, and generating an alarm message when the illumination intensity reaches a set intensity threshold value or the illumination intensity change exceeds a set intensity change threshold value; the temperature sensor is used for sensing the temperature in the case shell, and generating an alarm message when the temperature reaches a set temperature threshold or the temperature change exceeds a set temperature change threshold; the state monitoring unit is used for monitoring the inclination or moving state of the case shell, and generating an alarm message when the inclination change exceeds a set inclination change threshold value or moves; the electromagnetic field intensity sensor is used for measuring the magnetic field intensity in the case shell, and generating an alarm message when the magnetic field intensity reaches a set magnetic field threshold value or the magnetic field intensity change exceeds the set magnetic field change threshold value; the radiation intensity sensor is used for measuring the radiation intensity in the case shell, and generating an alarm message when the radiation intensity reaches a set radiation intensity threshold value or the radiation intensity change exceeds a set radiation change threshold value; the mobile monitoring unit is a gyroscope or an accelerometer.
9. The method of claim 8, wherein when the computer in operation is required to be transported to a target site, the sensing control means is configured to turn on only the barometric cell, the photosensor, before moving the computer; after the computer in operation has been transported to the target site, the sensor control device is reconfigured and the temperature sensor, the mobile monitoring unit, the electromagnetic field intensity sensor and the radiation intensity sensor are activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310213429.8A CN116301232A (en) | 2023-03-07 | 2023-03-07 | System for preventing high-pressure inflation of physically detected computer case and monitoring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310213429.8A CN116301232A (en) | 2023-03-07 | 2023-03-07 | System for preventing high-pressure inflation of physically detected computer case and monitoring method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN116301232A true CN116301232A (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310213429.8A Pending CN116301232A (en) | 2023-03-07 | 2023-03-07 | System for preventing high-pressure inflation of physically detected computer case and monitoring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116301232A (en) |
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2023
- 2023-03-07 CN CN202310213429.8A patent/CN116301232A/en active Pending
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