CN206312153U - Fail-safe computer with anti-tamper function - Google Patents
Fail-safe computer with anti-tamper function Download PDFInfo
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- CN206312153U CN206312153U CN201621394628.5U CN201621394628U CN206312153U CN 206312153 U CN206312153 U CN 206312153U CN 201621394628 U CN201621394628 U CN 201621394628U CN 206312153 U CN206312153 U CN 206312153U
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Abstract
The utility model discloses the fail-safe computer with anti-tamper function, including cabinet, and the inside of cabinet is provided with circuit board, the cabinet includes setting network signal identification module U2 and MCU module U3 on circuit boards, the first input end of the MCU module U3 is electrically connected with first output end of network information identification module U2, the input of the network information identification module U2 is electrically connected with network interface U1, and network interface U1 is fixedly mounted on cabinet, second output end of the network information identification module U2 is electrically connected with the port EN of chip U4, the port IN of the chip U4 is electrically connected with high level VCC and electric capacity C4, and the other end ground connection of electric capacity C4.Circuit connection of the present utility model is simple, it is economical and practical, security performance is high, the inside of fail-safe computer is provided with tampering detection circuit, whether tampering detection circuit is controlled by MCU module U3 to metal-oxide-semiconductor on-off circuit, and then can be controlled to being connected between MCU module U3 and hard disc of computer.
Description
Technical field
The utility model is related to field of computer technology, more particularly to a kind of fail-safe computer with anti-tamper function.
Background technology
Computer is commonly called as computer, is a kind of electronic computer device for supercomputing, can carry out numerical computations, again may be used
To carry out logical calculated, also with store-memory function.Computer is can be run according to program, automatic, high speed processing magnanimity
The modernization intelligent electronic device of data.Computer is made up of hardware system and software systems, is fitted without any software
Computer is referred to as bare machine.Continuous progressive and science and technology with society continues to develop, computer more and more welcomed by the people,
And computer comes into every household, computer brings great convenience to our life, and simultaneous computer is also easy
Invaded by hacker, hacker can be tampered to the data on computer so that the security performance of computer is low.
The content of the invention
The purpose of this utility model be in order to solve shortcoming present in prior art, and propose with anti-tamper function
Fail-safe computer.
To achieve these goals, the utility model employs following technical scheme：
Fail-safe computer with anti-tamper function, including cabinet, and the inside of cabinet is provided with circuit board, the cabinet bag
The network signal identification module U2 and MCU module U3 for setting on circuit boards are included, the first input end of the MCU module U3 is electrical
First output end of network information identification module U2 is connected with, the input of the network information identification module U2 is electrically connected with
Network interface U1, and network interface U1 is fixedly mounted on cabinet, the second output end electricity of the network information identification module U2
Property is connected with the port EN of chip U4, and the port IN of the chip U4 is electrically connected with high level VCC and electric capacity C4, and electric capacity C4
Other end ground connection, the port GND ground connection of the chip U4, the port BS of the chip U4 is connected with electric capacity C1, and electric capacity C1
The other end be connected with the other end of inductance L1, the inductance L1 and be connected with the positive pole of resistance R1, resistance R2 and diode D1, institute
The other end for stating resistance R1 is connected with the port FB and electric capacity C2 of chip U4, and the other end of resistance R1 is grounded, the electric capacity C2
The other end be connected with second input of the negative pole of diode D1, electric capacity C5 and MCU module U3, and the other end of electric capacity C5 and
The other end of resistance R2 is connected, and first output end of the MCU module U3 is electrically connected with the base stage of NPN type triode Q1,
And the colelctor electrode of NPN type triode Q1 is connected with the 4th input and the base of NPN type triode Q2 of resistance R3, MCU module U3
Pole, the colelctor electrode of the NPN type triode Q2 is connected with the positive pole of high level VCC, the other end of resistance R3 and hard disc of computer
Input, the negative input of the hard disc of computer is connected with the drain D of resistance R5 and FET Q3, and resistance R5's is another
One end is connected with the positive pole of electric capacity C3, and the negative pole of the electric capacity C3 is connected with the source S of FET Q3, NPN type triode Q1
Emitter stage and resistance R4, and electric capacity C3 negative pole ground connection, the other end of the resistance R4 is connected with the grid G of FET Q3
With the emitter stage of NPN type triode Q2, second output end of the MCU module U3 is electrically connected with the control end of relay, institute
The input for stating relay is electrically connected with the first output end of computer power supply, and the second input of computer power supply is electrical
The 3rd input of MCU module U3 is connected with, the output end of the relay is electrically connected with warning device.
Preferably, the warning device is audible-visual annunciator, and warning device is fixedly mounted on cabinet, the alarm dress
The model GST-HX-M8502 for putting.
Preferably, the model SY8113 of the chip U4.
Preferably, the computer power supply is provided with outlet, and computer power supply is connected with electricity by outlet
Source line.
Preferably, the model of the NPN type triode Q1 and NPN type triode Q2 is 2SC2383, the FET
Q3 is N-channel enhancement mode FET, and FET Q3 model STYLE21SOT -23.
Preferably, the resistance R1, resistance R2, resistance R3, resistance R4 and resistance R5 are conventional resistive, and electric capacity C1,
Electric capacity C2, electric capacity C3, electric capacity C4 and electric capacity C5 are conventional capacitance.
The beneficial effects of the utility model：
1st, together constitute and usurp by chip U4, electric capacity C4, electric capacity C1, inductance L1, resistance R1, diode D1 and electric capacity C2
Change detection circuit, chip U4 can be received to the signal that network signal automatic identification module sends U2, and chip U4 is docked
The signal of receipts carries out detection process, and the signal after chip U4 treatment enters by the filter circuit that electric capacity C1 and inductance L1 are collectively formed
Row filtration treatment, is then transferred on MCU module U3 by diode D1, and the resistance R2 and electric capacity C5 at diode D1 two ends match
Close, the signal that can be conveyed to chip U4 carries out voltage stabilizing treatment so that fail-safe computer can be connect to network signal signal
The network signal of receipts is detected；
2nd, by NPN type triode Q1, resistance R3, NPN type triode Q2, resistance R4, FET Q3, resistance R5 and electricity
Hold C3 and together constitute metal-oxide-semiconductor on-off circuit, MCU module U3 can control MCU module U3 and calculating by metal-oxide-semiconductor on-off circuit
Whether connection is set up between machine hard disk, the data in hard disc of computer can be avoided to be tampered；
Circuit connection of the present utility model is simple, and economical and practical, security performance is high, and the inside of fail-safe computer is provided with distorts
Detection circuit, tampering detection circuit is controlled by MCU module U3 to metal-oxide-semiconductor on-off circuit, and then can be to MCU module
Whether connected between U3 and hard disc of computer and be controlled.
Brief description of the drawings
Fig. 1 be the utility model proposes the fail-safe computer with anti-tamper function structural representation.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.
Reference picture 1, the fail-safe computer with anti-tamper function, including cabinet, and the inside of cabinet is provided with circuit board, machine
Case includes setting network signal identification module U2 and MCU module U3 on circuit boards, and the first input end of MCU module U3 is electrical
First output end of network information identification module U2 is connected with, the input of network information identification module U2 is electrically connected with network
Interface U1, and network interface U1 is fixedly mounted on cabinet, second output end of network information identification module U2 is electrically connected with
The port IN of the port EN of chip U4, chip U4 is electrically connected with high level VCC and electric capacity C4, and electric capacity C4 another termination
Ground, the port GND ground connection of chip U4, the port BS of chip U4 is connected with electric capacity C1, and the other end of electric capacity C1 is connected with inductance
L1, the other end of inductance L1 is connected with the positive pole of resistance R1, resistance R2 and diode D1, and the other end of resistance R1 is connected with chip
The port FB and electric capacity C2 of U4, and resistance R1 other end ground connection, the other end of electric capacity C2 is connected with the negative pole of diode D1, electricity
Hold second input of C5 and MCU module U3, and the other end of electric capacity C5 is connected with the other end of resistance R2, MCU module U3
The first output end be electrically connected with the base stage of NPN type triode Q1, and the colelctor electrode of NPN type triode Q1 is connected with resistance
R3, the 4th input of MCU module U3 and the base stage of NPN type triode Q2, the colelctor electrode of NPN type triode Q2 are connected with electricity high
The electrode input end of flat VCC, the other end of resistance R3 and hard disc of computer, the negative input of hard disc of computer is connected with resistance
The drain D of R5 and FET Q3, and the other end of resistance R5 is connected with the positive pole of electric capacity C3, the negative pole of electric capacity C3 is connected with field
The source S of effect pipe Q3, the emitter stage of NPN type triode Q1 and resistance R4, and electric capacity C3 negative pole ground connection, resistance R4's is another
End is connected with the grid G of FET Q3 and the emitter stage of NPN type triode Q2, and second output end of MCU module U3 electrically connects
The control end of relay is connected to, the input of relay is electrically connected with the first output end of computer power supply, and calculates electromechanical
Second input in source is electrically connected with the 3rd input of MCU module U3, and the output end of relay is electrically connected with alarm dress
Put, warning device is audible-visual annunciator, and warning device is fixedly mounted on cabinet, the model GST-HX- of warning device
The model SY8113 of M8502, chip U4, computer power supply is provided with outlet, and computer power supply passes through outlet
Power line is connected with, the model of NPN type triode Q1 and NPN type triode Q2 is 2SC2383, and FET Q3 is N-channel
Enhanced FET, and FET Q3 model STYLE21SOT -23, resistance R1, resistance R2, resistance R3, resistance R4
Conventional resistive is with resistance R5, and electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4 and electric capacity C5 are conventional capacitance.
Operation principle：Chip U4, electric capacity C4, electric capacity C1, inductance L1, resistance R1, diode D1 and electric capacity C2 are collectively formed
Tampering detection circuit, chip U4 can be received to the signal that network signal automatic identification module U2 sends, and chip U4
Signal to receiving carries out detection process, the filtered electrical that the signal after chip U4 treatment is collectively formed by electric capacity C1 and inductance L1
Road carries out filtration treatment, and the filter circuit that electric capacity C1 and inductance L1 are collectively formed carries out the signal after filtration treatment by diode D1
It is transferred on MCU module U3, while the resistance R2 and electric capacity C5 at diode D1 two ends are engaged, chip U3 can be conveyed
Signal carries out voltage stabilizing treatment, and tampering detection circuit is by MCU module U3 come to NPN type triode Q1, resistance R3, the pole of NPN type three
The metal-oxide-semiconductor on-off circuit that pipe Q2, resistance R4, FET Q3, resistance R5 and electric capacity C3 are collectively formed is controlled, MCU module
Whether U3 controls to set up connection between MCU module U3 and hard disc of computer by metal-oxide-semiconductor on-off circuit.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any one skilled in the art in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (6)
1. the fail-safe computer with anti-tamper function, including cabinet, and the inside of cabinet is provided with circuit board, it is characterised in that
The cabinet includes setting network signal identification module U2 on circuit boards and MCU module U3, the first of the MCU module U3
Input is electrically connected with first output end of network information identification module U2, the input of the network information identification module U2
Network interface U1 is electrically connected with, and network interface U1 is fixedly mounted on cabinet, the of the network information identification module U2
Two output ends are electrically connected with the port EN of chip U4, and the port IN of the chip U4 is electrically connected with high level VCC and electric capacity
C4, and electric capacity C4 other end ground connection, the port GND ground connection of the chip U4, the port BS of the chip U4 is connected with electric capacity
C1, and the other end of electric capacity C1 is connected with the other end of inductance L1, the inductance L1 and is connected with resistance R1, resistance R2 and diode
The positive pole of D1, the other end of the resistance R1 is connected with the port FB and electric capacity C2 of chip U4, and the other end of resistance R1 is grounded,
The other end of the electric capacity C2 is connected with second input of the negative pole of diode D1, electric capacity C5 and MCU module U3, and electric capacity C5
The other end be connected with the other end of resistance R2, first output end of the MCU module U3 is electrically connected with NPN type triode
The base stage of Q1, and the colelctor electrode of NPN type triode Q1 is connected with resistance R3, the 4th input of MCU module U3 and the pole of NPN type three
The base stage of pipe Q2, it is hard that the colelctor electrode of the NPN type triode Q2 is connected with high level VCC, the other end of resistance R3 and computer
The electrode input end of disk, the negative input of the hard disc of computer is connected with the drain D of resistance R5 and FET Q3, and electricity
The other end for hindering R5 is connected with the positive pole of electric capacity C3, and the negative pole of the electric capacity C3 is connected with the source S of FET Q3, NPN type
The emitter stage and resistance R4 of triode Q1, and electric capacity C3 negative pole ground connection, the other end of the resistance R4 is connected with FET
The grid G of Q3 and the emitter stage of NPN type triode Q2, second output end of the MCU module U3 are electrically connected with relay
Control end, the input of the relay is electrically connected with the first output end of computer power supply, and computer power supply second
Input is electrically connected with the 3rd input of MCU module U3, and the output end of the relay is electrically connected with warning device.
2. the fail-safe computer with anti-tamper function according to claim 1, it is characterised in that the warning device is
Audible-visual annunciator, and warning device is fixedly mounted on cabinet, the model GST-HX-M8502 of the warning device.
3. the fail-safe computer with anti-tamper function according to claim 1, it is characterised in that the type of the chip U4
Number be SY8113.
4. the fail-safe computer with anti-tamper function according to claim 1, it is characterised in that the computer power supply
Outlet is provided with, and computer power supply is connected with power line by outlet.
5. the fail-safe computer with anti-tamper function according to claim 1, it is characterised in that the pole of the NPN type three
The model of pipe Q1 and NPN type triode Q2 is 2SC2383, and the FET Q3 is N-channel enhancement mode FET, and field
The model STYLE21SOT -23 of effect pipe Q3.
6. the fail-safe computer with anti-tamper function according to claim 1, it is characterised in that the resistance R1, electricity
Resistance R2, resistance R3, resistance R4 and resistance R5 are conventional resistive, and electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4 and electric capacity C5
It is conventional capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621394628.5U CN206312153U (en) | 2016-12-19 | 2016-12-19 | Fail-safe computer with anti-tamper function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621394628.5U CN206312153U (en) | 2016-12-19 | 2016-12-19 | Fail-safe computer with anti-tamper function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206312153U true CN206312153U (en) | 2017-07-07 |
Family
ID=59251763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621394628.5U Expired - Fee Related CN206312153U (en) | 2016-12-19 | 2016-12-19 | Fail-safe computer with anti-tamper function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206312153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645426A (en) * | 2017-09-06 | 2018-01-30 | 南京真格邦软件有限公司 | A kind of identification device of web station system information |
-
2016
- 2016-12-19 CN CN201621394628.5U patent/CN206312153U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645426A (en) * | 2017-09-06 | 2018-01-30 | 南京真格邦软件有限公司 | A kind of identification device of web station system information |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20171219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |