CN113742794A - Case detection system and detection server - Google Patents
Case detection system and detection server Download PDFInfo
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- CN113742794A CN113742794A CN202111095248.7A CN202111095248A CN113742794A CN 113742794 A CN113742794 A CN 113742794A CN 202111095248 A CN202111095248 A CN 202111095248A CN 113742794 A CN113742794 A CN 113742794A
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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
- G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
- G06F21/75—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information by inhibiting the analysis of circuitry or operation
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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
Abstract
The embodiment of the application relates to the field of circuits, and provides a case detection system and a detection server, wherein the case detection system comprises: the connector is electrically connected with the working power supply and the ground end, the first cable is electrically connected with the connector and the case to be detected, and the second cable is electrically connected with the connector and the case to be detected; the output end of the detection module outputs a test signal with a fixed duty ratio, and the output end is electrically connected with the connector; the first switch module is electrically connected with the connector and the detection module and controls the conduction between the connector and the detection module; the second switch module is electrically connected with the connector and the detection module and controls the conduction between the connector and the detection module, the connection port of the second switch module is different from the connection port of the first switch module, and whether the case to be detected is opened or not and whether the cable is connected or not are judged by comparing signals output and received by the detection module, so that the case is better protected.
Description
Technical Field
The embodiment of the application relates to the field of circuits, in particular to a case detection system and a detection server.
Background
Intrusion prevention systems are computer network security facilities that are complementary to antivirus software and firewalls. The intrusion prevention system is a computer network device capable of monitoring network data transmission behaviors of a network or network devices, and can immediately interrupt, adjust or isolate abnormal or harmful network data transmission behaviors. Intrusion prevention systems are network intrusion prevention systems, while chassis is one way to prevent physical intrusion.
The detection switch is additionally arranged on the upper cover of the case and is connected to the mainboard detection unit through the cable, however, the cable is not assembled or assembled badly, or the cable and the mainboard detection unit are loosened and fall off in the case in the scenes of transportation, earthquake and the like, so that the detection unit cannot correctly identify whether the case is invaded or misjudged.
Disclosure of Invention
The embodiment of the application provides a case detection system and a detection server, which are at least beneficial to improving the accuracy of judgment of a detection module, and then send out a correct case state according to the current state of a case, so that the case is better protected.
According to some embodiments of the present application, there is provided a chassis detection system, including: the connector is electrically connected with a working power supply and a ground end, the first cable is electrically connected with the connector and a case to be detected, and the second cable is electrically connected with the connector and the case to be detected; the output end of the detection module outputs a test signal with a fixed duty ratio, and the output end is electrically connected with the connector; the first switch module is electrically connected with the connector and the detection module and controls the conduction between the connector and the detection module; the second switch module is electrically connected with the connector and the detection module and controls the connection between the connector and the detection module, and a connection port of the second switch module is different from that of the first switch module.
In addition, the upper cover of the case to be detected is provided with a normally open type detection switch, the normally open type detection switch is provided with a first end and a second end which are opposite to each other, the connector is provided with a first port and a second port, the first port is electrically connected with a working power supply, the second port is electrically connected with a grounding end, the first cable is used for electrically connecting the first port with the first end, and the second cable is used for electrically connecting the second port with the second end.
In addition, the first switch module has a first control end, a third port and a fourth port, the first control end is electrically connected with the working power supply, the first switch module is based on the signal of the first control end so as to make the third port and the fourth port conducted with each other, the third port is electrically connected with the second port, the fourth port is electrically connected with the working power supply, and the fourth port is further electrically connected with the first collection end of the detection module.
In addition, the second switch module has a second control end, a fifth port and a sixth port, the second control end is electrically connected with the first port, the second switch module is based on a signal of the second control end so as to enable the fifth port to be conducted with the sixth port, the fifth port is grounded, the sixth port is electrically connected with the working power supply, and the sixth port is further electrically connected with the second acquisition end of the detection module.
In addition, still include: a first transient voltage suppression module electrically connected between the second port and the ground for suppressing a transient high voltage.
In addition, the first transient voltage suppression module includes: one end of the first diode is electrically connected with the second port, and the other end of the first diode is electrically connected with the ground end; the second port is electrically connected with the ground end through the second resistor; and the first capacitor is connected with the second resistor in parallel.
In addition, still include: a second transient voltage suppression module electrically connected between the operating power supply and the connector for suppressing a transient high voltage.
Additionally, the second transient voltage suppression module includes: the output end is electrically connected with the connector through the first resistor; two second diodes, the first resistor is electrically connected between the second diodes and the connector, wherein the anode of one of the second diodes is electrically connected to the ground terminal, and the cathode of the second diode is connected to the anode of the other second diode and the first resistor; and the anode of the third diode is electrically connected with the working power supply, and the cathode of the third diode is electrically connected with the cathode of the other second diode.
In addition, still include: one end of the third resistor is electrically connected with the working power supply; and the other end of the third resistor is connected with one end of the second capacitor, and the other end of the second capacitor is electrically connected with the ground end.
The embodiment of the application further provides a detection server, which comprises the case detection system.
The technical scheme provided by the embodiment of the application has at least the following advantages: the output end of the detection module outputs a test signal with a fixed duty ratio, the test signal sequentially passes through the first port of the connector, the first cable, the first end of the normally-open detection switch, the second cable, the second port of the connector and the third port of the first switch module, the third port and the fourth port of the first switch module are controlled to be conducted based on the test signals of the first control end and the third port of the first switch module, so that the first acquisition end receives a first feedback signal, the connection condition of the cable, whether the detection switch is in place and whether the upper cover of the chassis is opened are judged by comparing the duty ratio of the first feedback signal and the duty ratio of the test signal, whether the fifth port and the sixth port are conducted is determined according to the signal of the second control end of the second switch module, and a second feedback signal is provided to the second acquisition end, and then judge whether the quick-witted case is opened according to the signal of second collection end, and then judge whether appearing being invaded of quick-witted case through judging the signal that first collection end and second collection end received to better protection machine case.
Drawings
One or more embodiments are illustrated by corresponding figures in the drawings, which are not to be construed as limiting the embodiments, unless expressly stated otherwise, and the drawings are not to scale.
Fig. 1 is a schematic circuit diagram of a chassis inspection system according to an embodiment of the present disclosure;
fig. 2 is a schematic circuit diagram of another chassis inspection system according to an embodiment of the present disclosure.
Detailed Description
It can be known from the background art that the situation of misjudgment is easy to occur in the current way of the mainboard detecting unit, so that the alarm effect cannot be realized, and the unnecessary workload can be increased.
In order to solve the above problem, the present application provides a chassis detection system, and the signals received by the first acquisition end and the second acquisition end are respectively determined, so as to determine whether the chassis is opened, and whether the cable is normally connected, thereby more accurately determining the specific abnormal situation.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
Fig. 1 is a schematic circuit diagram of a chassis detection system according to an embodiment of the present application, and fig. 2 is a schematic circuit diagram of another chassis detection system according to an embodiment of the present application.
Referring to fig. 1, the chassis inspection system includes: the connector 110 is electrically connected with a working power supply Vcc and a ground end, the first cable 120 is electrically connected with the connector 110 and the case to be detected, and the second cable 130 is electrically connected with the connector 110 and the case to be detected; the output end 5 of the detection module 140 outputs a test signal with a fixed duty ratio, and the output end 5 is electrically connected with the connector 110; the first switch module Q1, the first switch module Q1 electrically connects the connector 110 and the detection module 140 and controls the connection between the connector 110 and the detection module 140; the second switch module Q2, the second switch module Q2 electrically connects the connector 110 and the detection module 140 and controls the connection between the connector 110 and the detection module 140, and the connection port of the second switch module Q2 is different from the connection port of the first switch module Q1.
Specifically, the top cover of the chassis to be detected is provided with a normally open detection switch 100, the normally open detection switch 100 has a first end 1 and a second end 2 opposite to each other, the connector 110 has a first port 3 and a second port 4, the first port 3 is electrically connected to a working power supply Vcc, the second port 4 is electrically connected to a ground terminal, the first cable 120 is used for electrically connecting the first port 3 and the first end 1, and the second cable 130 is used for electrically connecting the second port 4 and the second end 2.
The first switch module Q1 has a first control terminal 6, a third port 7 and a fourth port 8, the first control terminal 6 is electrically connected to the operating power supply Vcc, the first switch module Q1 is turned on between the third port 7 and the fourth port 8 based on the signal of the first control terminal 6, the third port 7 is electrically connected to the second port 4, the fourth port 8 is electrically connected to the operating power supply Vcc, and the fourth port 8 is further electrically connected to the first collecting terminal 9 of the detecting module 140.
The second switch module Q2 has a second control terminal 10, a fifth port 11 and a sixth port 12, the second control terminal 10 is electrically connected to the first port 3, the second switch module Q2 is configured to conduct the fifth port 11 and the sixth port 12 based on a signal of the second control terminal 10, the fifth port 11 is grounded, the sixth port 12 is electrically connected to the operating power Vcc, and the sixth port 12 is further electrically connected to the second collecting terminal 13 of the detecting module 140.
Specifically, the duty ratio is a ratio of the energization time to the total time in one pulse cycle.
The first switching module Q1 includes an NMOS (N-Metal-Oxide-Semiconductor) transistor, and the second switching module Q2 includes an NMOS transistor. In some embodiments, the first switching module Q1 may further include a diode connected in series between the third port 7 and the fourth port 8, and the anode of the diode is connected to the fourth port 8, and the cathode of the diode is connected to the third port 7, and the second switching module Q2 may further include a diode connected in series between the fifth port 11 and the sixth port 12, and the anode of the diode is connected to the fifth port 11, and the cathode of the diode is connected to the sixth port 12.
When the first switch module Q1 and the second switch module Q2 are NMOS transistors, the first control terminal 6 corresponds to a gate of the NMOS transistor, the third port 7 corresponds to a drain of the NMOS transistor, the fourth port 8 corresponds to a source of the NMOS transistor, the second control terminal 10 corresponds to a gate of the NMOS transistor, the fifth port 11 corresponds to a source of the NMOS transistor, and the sixth port 12 corresponds to a drain of the NMOS transistor.
Taking a test signal with a fixed duty ratio of 30% as an example, taking the test signal as an example of outputting a high level first and then outputting a low level, when the test signal is a high level, the test signal sequentially passes through the first port 3 of the connector 110, the first cable 120, the first end 1 of the normally-open detection switch 100, the second end 2 of the normally-open detection switch 100, the second cable 130 and the second port 4 of the connector 110 to provide a high level to the third port 7 of the first switch module Q1, so that the first switch module Q1 is not conducted, the first acquisition port 9 is connected with the working power supply Vcc, so that the first acquisition port 9 is a high level, when the test signal is a low level, the first switch module Q1 is conducted, so that the signal received by the first acquisition port 9 is a low level, so that the fixed duty ratio of the signal waveform received by the first acquisition port 9 is the same as the fixed duty ratio of the signal waveform output by the output terminal 5 of the detection module 140, if the fixed duty ratio of the signal waveform output by the output end 5 is consistent with the fixed duty ratio of the signal waveform received by the first acquisition end 9, the cable is considered to be connected in place and the case is not opened.
When the chassis is not opened, the second port 4 of the connector 110 is connected to the ground, a low level is supplied to the second control terminal 10 of the second switch module Q2 through the second port 4, the second cable 130, the second terminal 2, the first terminal 1, the first cable 120 and the first port 3, the second switch module Q2 is not turned on, the second acquisition terminal 13 is connected to the operating power Vcc, the received signal is a high level, when the chassis is opened, the second control terminal 10 of the second switch module Q2 receives a high level, the second switch module Q2 is turned on, and since the fifth port 11 of the second switch module Q2 is grounded, the second acquisition terminal 13 is a low level, the chassis is opened, it is considered that the chassis is invaded, and the detection module 140 sends an alarm.
The first switch module Q1 and the second switch module Q2 work together, so that the abnormal condition can be judged more accurately.
Referring to fig. 2, in some embodiments, a first transient voltage suppression module 150 is further included, and the first transient voltage suppression module 150 is electrically connected between the second port 4 and the ground terminal for suppressing a transient high voltage.
The first transient voltage suppression module 150 may include: a first diode D1, wherein one end of the first diode D1 is electrically connected to the second port 4, and the other end is electrically connected to the ground; the second port 4 is electrically connected with the ground end through a second resistor R2 and a second resistor R2; the first capacitor C1 and the first capacitor C1 are connected in parallel with the second resistor R2.
In some embodiments, the resistance of the second resistor R2 may be greater than or equal to 10k Ω, such as 10k Ω; the capacitance of the first capacitor C1 may be less than 0.1 μ F, for example, 0.001 μ F, and it is understood that the resistance of the second resistor R2 and the capacitance of the first capacitor C1 may be selected according to the actual circuit requirements to further select different resistors and capacitors, and the interference signal is filtered by connecting the first capacitor C1 in parallel to the two ends of the second resistor R2.
In some embodiments, when the first switch module Q1 changes from on to off, the first diode D1 quickly drains the current of the first switch module Q1, thereby protecting the first switch module Q1 by eliminating the self-inductance generated by the first switch module Q1 at the moment of power off.
In some embodiments, a second transient voltage suppression module 160 is further included, the second transient voltage suppression module 160 being electrically connected between the operating power supply Vcc and the first port 3 for suppressing the transient high voltage.
The second transient high voltage suppression module 160 may include: a first resistor R1, wherein the output end 5 is electrically connected with the first port 3 through a first resistor R1; two second diodes D2, the first resistor R1 is electrically connected between the second diode D2 and the first port 3, wherein the anode of one second diode D2 is electrically connected to the ground, and the cathode of the second diode D2 is electrically connected to the anode of the other second diode D2 and the first resistor R1; and the anode of the third diode D3, the anode of the third diode D3 and the working power supply Vcc are electrically connected, and the cathode of the third diode D3 and the cathode of the other second diode D2 are electrically connected.
In some embodiments, the resistance of the first resistor R1 may be less than or equal to 2k Ω, for example, 1k Ω, when the resistance of the first resistor R1 is 1k Ω, and the resistance of the second resistor R2 is 10k Ω, taking 3.3V as an example of the high voltage output by the output terminal 5, the first resistor R1 and the second resistor R2 divide the voltage, as can be seen from a ratio of 1:10 of the resistances of the first resistor R1 and the second resistor R2, the voltage of the second resistor R2 is 3V, and the voltage of Vcc is 3.3V, the voltage of the first control terminal 6 of the first switch module Q1 is 3.3V, the voltage of the third port 7 is 3V, the first switch module Q1 is non-conductive, the first collection terminal 9 is connected to the operating power supply Vcc, the received electrical signal is high level, when the output terminal 5 outputs low level, the voltage of the first control terminal 6 of the first switch module Q1 is 3.3V, the voltage of the third port 7 is 3V, the first switch module Q1 is conductive, the signal of telecommunication that first collection end 9 received is the low level, therefore when output 5 output high voltage, the signal of telecommunication that first collection end 9 received is the high level, and when output 5 output low level, the signal of telecommunication that first collection end 9 received is the low level, can judge the connection status of cable and the situation of opening and shutting of quick-witted case through the duty cycle of the signal of telecommunication and the duty cycle of output 5 output signal of the first collection end 9 received of contrast. It can be understood that the resistances of the first resistor R1 and the second resistor R2 can be selected according to specific voltage dividing requirements, and the two second diodes D2 and the third diode D3 can prevent the transient high voltage generated at the moment of power-on from affecting the operating power Vcc.
In some embodiments, the device further comprises a third resistor R3, wherein one end of the third resistor R3 is electrically connected to the operating power supply Vcc; the other end of the third resistor R3 of the second capacitor C2 is electrically connected to one end of the second capacitor C2, and the other end of the second capacitor C2 is electrically connected to the ground terminal, so as to filter the interference signal by the cooperation of the third resistor R3 and the second capacitor C2.
The third resistor R3 may have a resistance greater than or equal to 10k Ω, for example, 100k Ω, when the second resistor R2 has a resistance of 10k Ω, the third resistor R3 has a resistance of 100k Ω, and the operating power supply Vcc provides a voltage of 3.3V, the voltage across the second control terminal 10 of the second switch module Q2 and the second resistor R2 are the same, when the cable is connected and the chassis is not opened, the second resistor R2 and the third resistor R3 divide the voltage, the ratio of the resistance of the second resistor R2 to the resistance of the third resistor R3 is 1:10, it is known that the voltage across the second resistor R2 is 0.3V, that is, the voltage across the second control terminal 10 is 0.3V, the voltage across the sixth port 12 is 3.3V, the second switch module Q2 is not turned on, the second collecting terminal 13 is connected to the operating power supply Vcc, the received electrical signal is high, when the chassis is opened, the second control terminal 10 is turned on, the second switch module Q2 is electrically connected to the fifth switch module 3611, the second acquisition end 13 receives the low level, and judges whether the case is opened or not by judging the electric signal of the second acquisition end 13. It is understood that the resistance of the third resistor R3 can be selected according to the specific voltage dividing requirement, and the capacitance of the second capacitor C2 can be less than or equal to 0.1 μ F, for example, 0.01 μ F.
In some embodiments, the controller further comprises a fourth resistor R4, and the second control terminal 10 is connected to the first port 3 through the fourth resistor R4; the fourth port 8 of the fifth resistor R5 is electrically connected with the first acquisition end 9 through the fifth resistor R5; a sixth resistor R6, wherein the output end 5 is electrically connected with the first port 3 through the sixth resistor R6; the seventh resistor R7, the sixth port 12 are electrically connected to the second collecting terminal 13 through the seventh resistor R7, and the fourth resistor R4, the fifth resistor R5, the sixth resistor R6 and the seventh resistor R7 are used for signal matching.
In some embodiments, the resistances of the fourth resistor R4, the fifth resistor R5, the sixth resistor R6, and the seventh resistor R7 may all be less than or equal to 33 Ω, and the interference rejection capability may be improved by reducing the resistances of the fourth resistor R4, the fifth resistor R5, the sixth resistor R6, and the seventh resistor R7.
In some embodiments, further comprising: the eighth resistor R8 is used for electrically connecting the second acquisition end 13 with the working power supply Vcc through the eighth resistor R8; the ninth resistor R9 is used for electrically connecting the first acquisition end 9 with the working power supply Vcc through the ninth resistor R9; the tenth resistor R10 is a resistor R10, and the first control terminal 6 is electrically connected to the operating power source Vcc, the electric signal supplied from the operating power source Vcc to the second collecting terminal 13 is fixed to a high level by the eighth resistor R8, the electric signal supplied from the operating power source Vcc to the first collecting terminal 9 is fixed to a high level by the ninth resistor R9, and the electric signal supplied from the operating power source Vcc to the first control terminal 6 is fixed to a high level by the tenth resistor R10.
The resistance of the eighth resistor R8 may be less than or equal to 10k Ω, for example, 4.7k Ω, the resistance of the ninth resistor R9 may be less than or equal to 10k Ω, for example, 4.7k Ω, and the resistance of the tenth resistor R10 may be less than or equal to 10k Ω, for example, 4.7k Ω, it is understood that the resistances of the eighth resistor R8, the ninth resistor R9, and the tenth resistor R10 may be selected in consideration of driving capability and power consumption, driving requirements of the circuit, setting of high and low levels, frequency characteristics, and the like.
In the embodiment of the present application, the output end 5 of the detection module 140 outputs the test signal with the fixed duty ratio, the signal is returned to the first collection end 9 of the detection module 140 through the connector 110, the first cable 120, the normally open detection switch 100, the second cable 130 and the first switch module Q1, the signal is compared with the signal received by the first collection end 9 and the test signal output by the output end 5, and then it is determined whether the first cable 120 and the second cable 130 are in place and the chassis is opened, and it is determined whether the chassis is opened by determining the signal transmitted to the second collection end 13 of the detection module 140 through the second switch module Q2, thereby more accurately determining the specific abnormal situation through the indication of the two signals, and better protecting the chassis and the internal information.
The application also provides a detection server which comprises the case detection system.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the present application, and that various changes in form and details may be made therein without departing from the spirit and scope of the present application in practice. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the application, and it is intended that the scope of the application be limited only by the claims appended hereto.
Claims (10)
1. A chassis inspection system, comprising:
the connector is electrically connected with a working power supply and a ground end, the first cable is electrically connected with the connector and a case to be detected, and the second cable is electrically connected with the connector and the case to be detected;
the output end of the detection module outputs a test signal with a fixed duty ratio, and the output end is electrically connected with the connector;
the first switch module is electrically connected with the connector and the detection module and controls the conduction between the connector and the detection module;
the second switch module is electrically connected with the connector and the detection module and controls the connection between the connector and the detection module, and a connection port of the second switch module is different from that of the first switch module.
2. The chassis inspection system of claim 1, wherein the top cover of the chassis to be inspected is provided with a normally open detection switch, the normally open detection switch has a first end and a second end opposite to each other, the connector has a first port and a second port, the first port is electrically connected to an operating power source, the second port is electrically connected to a ground terminal, the first cable is configured to electrically connect the first port and the first end, and the second cable is configured to electrically connect the second port and the second end.
3. The chassis detection system according to claim 2, wherein the first switch module has a first control terminal, a third port, and a fourth port, the first control terminal is electrically connected to the operating power supply, the first switch module is configured to conduct the third port and the fourth port based on a signal of the first control terminal, the third port is electrically connected to the second port, the fourth port is electrically connected to the operating power supply, and the fourth port is further electrically connected to the first acquisition terminal of the detection module.
4. The chassis detection system according to claim 2, wherein the second switch module has a second control terminal, a fifth port and a sixth port, the second control terminal is electrically connected to the first port, the second switch module is configured to conduct the fifth port and the sixth port based on a signal of the second control terminal, the fifth port is grounded, the sixth port is electrically connected to the working power supply, and the sixth port is further electrically connected to the second acquisition terminal of the detection module.
5. The chassis detection system of claim 2, further comprising: a first transient voltage suppression module electrically connected between the second port and the ground for suppressing a transient high voltage.
6. The chassis detection system of claim 5, wherein the first transient voltage suppression module comprises:
one end of the first diode is electrically connected with the second port, and the other end of the first diode is electrically connected with the ground end;
the second port is electrically connected with the ground end through the second resistor;
and the first capacitor is connected with the second resistor in parallel.
7. The chassis detection system of claim 1, further comprising: a second transient voltage suppression module electrically connected between the operating power supply and the connector for suppressing a transient high voltage.
8. The chassis detection system of claim 7, wherein the second transient voltage suppression module comprises:
the output end is electrically connected with the connector through the first resistor;
two second diodes, the first resistor is electrically connected between the second diodes and the connector, wherein the anode of one of the second diodes is electrically connected to the ground terminal, and the cathode of the second diode is connected to the anode of the other second diode and the first resistor;
and the anode of the third diode is electrically connected with the working power supply, and the cathode of the third diode is electrically connected with the cathode of the other second diode.
9. The chassis detection system of claim 1, further comprising:
one end of the third resistor is electrically connected with the working power supply;
and the other end of the third resistor is connected with one end of the second capacitor, and the other end of the second capacitor is electrically connected with the ground end.
10. An inspection server comprising the chassis inspection system of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111095248.7A CN113742794A (en) | 2021-09-17 | 2021-09-17 | Case detection system and detection server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111095248.7A CN113742794A (en) | 2021-09-17 | 2021-09-17 | Case detection system and detection server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113742794A true CN113742794A (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111095248.7A Pending CN113742794A (en) | 2021-09-17 | 2021-09-17 | Case detection system and detection server |
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| Country | Link |
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| CN (1) | CN113742794A (en) |
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2021
- 2021-09-17 CN CN202111095248.7A patent/CN113742794A/en active Pending
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