CN209117845U - A kind of voltage sensor detection device in safety chip - Google Patents
A kind of voltage sensor detection device in safety chip Download PDFInfo
- Publication number
- CN209117845U CN209117845U CN201821509146.9U CN201821509146U CN209117845U CN 209117845 U CN209117845 U CN 209117845U CN 201821509146 U CN201821509146 U CN 201821509146U CN 209117845 U CN209117845 U CN 209117845U
- Authority
- CN
- China
- Prior art keywords
- voltage
- ammeter
- unit
- safety chip
- signal
- 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.)
- Active
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses the voltage sensor detection devices in a kind of safety chip, including safety chip, the safety chip includes control unit and alarm unit, described control unit includes voltage cell, switch unit and breaking units, described control unit output end is equipped with the first ammeter and the second ammeter, the first ammeter output end is equipped with CPU, and the breaking units output end is equipped with shutdown unit.The utility model is by being equipped with voltage cell, voltage signal detection unit mainly compares the signal for the normal voltage that the voltage signal of the size detection of voltage is worked normally with safety chip, when detectable voltage signals are greater than the signal of normal voltage, switch unit connects a voltage to the first ammeter, when detectable voltage signals are less than the signal of normal voltage, switch unit connects a voltage to the second ammeter, so that convenient accurately measure to by the electric current in route.
Description
Technical field
Voltage sensor detection the utility model relates to safety chip technical field, in particular in a kind of safety chip
Device.
Background technique
Safety chip is exactly trusted console module, is the device that can independently carry out key generation, encryption and decryption, internal
Possess independent processor and storage unit, key and characteristic can be stored, provides encryption and Security Authentication Service for computer.
And voltage sensor is a kind of tested electrical parameter is converted into DC current, DC voltage and output analog signal or number is isolated
The device of word signal.When being detected to voltage sensor, mainly the direct current of external power supply is clamped on safety chip, no
It can be measured according to the parameter of safety chip itself, it is easy to which the situation for causing safety chip to damage influences measurement process.
Therefore, the voltage sensor detection device invented in a kind of safety chip is necessary to solve the above problems.
Utility model content
The purpose of this utility model is to provide the voltage sensor detection device in a kind of safety chip, the first ammeters
After the standard operating current of the current data of measurement and safety chip is compared calculating by CPU with the second ammeter, when
When the electric current passed through in circuit is greater than maximum (or minimum) electric current that (or being less than) safety chip is born, CPU controls alarm unit
Alert process is carried out, illustrates that the voltage of the voltage sensor damage in circuit or the external power supply in circuit is excessive, reaches to peace
The voltage sensor of full chip interior carries out detection effect also can be to good safe core while detecting to voltage sensor
Piece is protected, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: the voltage sensor in a kind of safety chip
Detection device, including safety chip, the safety chip include control unit and alarm unit, and described control unit includes voltage
Unit, switch unit and breaking units, described control unit output end be equipped with the first ammeter and the second ammeter, described first
Ammeter output end is equipped with CPU, and the breaking units output end is equipped with shutdown unit, specific:
It is mechanical that first ammeter and the second ammeter are disposed as accurate current measurement, can be precisely to after decimal point
Two size of current data, to increase the detection effect to safety chip；
The voltage cell mainly detects voltage swing of the aid on safety chip, and safety chip is that have one
A maximum receiving voltage and the smallest operating voltage, the voltage cell include voltage signal detection unit, voltage signal inspection
Unit is surveyed mainly to carry out the signal for the normal voltage that the voltage signal of the size detection of voltage and safety chip work normally pair
Than when detectable voltage signals are greater than the signal of normal voltage, switch unit connects a voltage to the first ammeter, when detection voltage
Signal is less than the signal of normal voltage, and switch unit connects a voltage to the second ammeter, thus convenient to by route
Electric current is accurately measured, and the voltage cell is set as voltmeter；
The alarm unit mainly broadcasts the testing result of safety chip, facilitates the peace for guaranteeing safety chip work
Quan Xing.
Preferably, the safety chip input terminal is equipped with external power supply, and the external power supply is set as direct current.
Preferably, the safety chip and voltage cell are electrically connected, first ammeter, the second ammeter and open circuit
Unit is electrically connected with switch unit, and the switch unit is set as control PCB, and the breaking units are set as off signal
Transmitter.
Preferably, the breaking units and shutdown unit are electrically connected, and the shutdown unit is set as external power supply disconnection
Connection, the shutdown unit are set as shutdown signal receiver.
Preferably, first ammeter and the second ammeter are electrically connected with CPU, and the CPU and control unit are equal
It is electrically connected with alarm unit, the alarm unit is set as light emitting diode.
The technical effect and advantage of the utility model:
1, the utility model is by being equipped with voltage cell, and voltage cell is mainly to voltage swing of the aid on safety chip
It is detected, and safety chip is that have a maximum receiving voltage and the smallest operating voltage, voltage signal detection unit master
The signal for the normal voltage that the voltage signal of the size detection of voltage is worked normally with safety chip is compared, detection is worked as
Voltage signal is greater than the signal of normal voltage, and switch unit connects a voltage to the first ammeter, when detectable voltage signals are less than
The signal of normal voltage, switch unit connect a voltage to the second ammeter, so that convenient carry out to by the electric current in route
It accurately measures；
2, the utility model by be equipped with alarm unit, the first ammeter and the second ammeter by the current data of measurement with
After the standard operating current of safety chip compares calculating by CPU, when the electric current passed through in circuit is pacified greater than (or being less than)
When maximum (or minimum) electric current that full chip is born, CPU controls alarm unit and carries out alert process, illustrates that the voltage in circuit passes
The voltage of sensor damage or the external power supply in circuit is excessive, reaches and carries out detection effect to the voltage sensor inside safety chip
Fruit can also protect good safety chip while detecting to voltage sensor.
Detailed description of the invention
Fig. 1 is the total system schematic diagram of the utility model；
Fig. 2 is the control unit schematic diagram of the utility model；
Fig. 3 is the whole detection system schematic of the utility model；
In figure: 1 safety chip, 2 control units, 3 alarm units, 4 voltage cells, 5 switch units, 6 breaking units, 7
One ammeter, 8 second ammeters, 9 CPU, 10 shutdown units, 11 external power supplys.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides the voltage sensor detection device in a kind of safety chip as shown in Figs. 1-3, including
Safety chip 1, the safety chip 1 include control unit 2 and alarm unit 3, and described control unit 2 includes voltage cell 4, cuts
Unit 5 and breaking units 6 are changed, 2 output end of described control unit is equipped with the first ammeter 7 and the second ammeter 8, first electricity
7 output end of flow table is equipped with CPU9, and 6 output end of breaking units is equipped with shutdown unit 10, specific:
First ammeter 7 and the second ammeter 8 are disposed as accurate current measurement machinery, can precisely arrive decimal point
Two size of current data afterwards, to increase the detection effect to safety chip 1；
The voltage cell 4 mainly detects voltage swing of the aid on safety chip 1, and safety chip 1 is
There are a maximum receiving voltage and the smallest operating voltage, the voltage cell 4 includes voltage signal detection unit, voltage letter
The signal for the normal voltage that number detection unit mainly works normally the voltage signal of the size detection of voltage and safety chip 1 into
Row comparison, when detectable voltage signals are greater than the signal of normal voltage, switch unit 5 connects a voltage to the first ammeter 7, works as inspection
The signal that voltage signal is less than normal voltage is surveyed, switch unit 5 connects a voltage to the second ammeter 8, thus convenient to passing through
Electric current in route is accurately measured, and the voltage cell 4 is set as voltmeter；
The alarm unit 3 mainly broadcasts the testing result of safety chip 1, facilitates and guarantees that safety chip 1 works
Safety.
Further, in the above-mentioned technical solutions, 1 input terminal of safety chip is equipped with external power supply 11, described external
Power supply 11 is set as direct current, directly measures the voltage sensor inside safety chip 1, alternating current is avoided to be converted to direct current
The additional consumption that electricity generates.
Further, in the above-mentioned technical solutions, the safety chip 1 is electrically connected with voltage cell 4, first electricity
Flow table 7, the second ammeter 8 and breaking units 6 are electrically connected with switch unit 5, and the switch unit 5 is set as control PCB,
The breaking units 6 are set as shutdown signal projector.
Further, in the above-mentioned technical solutions, the breaking units 6 are electrically connected with shutdown unit 10, the shutdown
Unit 10 is set as external power supply 11 and disconnects, convenient to stop powering to safety chip 1 by shutdown unit 10, avoids safety
Chip 1 damages, and the shutdown unit 10 is set as shutdown signal receiver.
Further, in the above-mentioned technical solutions, first ammeter 7 and the second ammeter 8 electrically connect with CPU9
It connects, the standard operating current of the current data of measurement and safety chip 1 is passed through CPU9 by the first ammeter 7 and the second ammeter 8
Calculating is compared, the CPU9 and control unit 2 are electrically connected with alarm unit 3, and the alarm unit (3) is set as sending out
Optical diode.
This practical working principle:
Referring to Figure of description 3, voltage cell 4 mainly detects voltage swing of the aid on safety chip 1, and
Safety chip 1 is that have a maximum receiving voltage and the smallest operating voltage, and voltage signal detection unit is mainly by voltage
The signal for the normal voltage that the voltage signal of size detection is worked normally with safety chip 1 compares, and works as detectable voltage signals
Greater than the signal of normal voltage, switch unit 5 connects a voltage to the first ammeter 7, when detectable voltage signals are less than standard electric
The signal of pressure, switch unit 5 connect a voltage to the second ammeter 8, thus convenient accurate to being carried out by the electric current in route
Measurement, when the voltage of circuit passed through is excessive, switch unit 5 connects a voltage to breaking units 6, finally by shutdown unit
10 pairs of safety chips 1 stop power supply, and safety chip 1 is avoided to damage；
Referring to Figure of description 1 and attached drawing 2, the first ammeter 7 and the second ammeter 8 are by the current data and safety of measurement
After the standard operating current of chip 1 compares calculating by CPU9, when the electric current passed through in circuit is greater than (or being less than) safety
When maximum (or minimum) electric current that chip 1 is born, CPU9 controls alarm unit 3 and carries out alert process, illustrates the voltage in circuit
The voltage of external power supply 11 in sensor degradation or circuit is excessive, reaches and carries out to the voltage sensor inside safety chip 1
Detection effect can also protect good safety chip 1 while detecting to voltage sensor.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
1. the voltage sensor detection device in a kind of safety chip, including safety chip (1), it is characterised in that: the safety
Chip (1) includes control unit (2) and alarm unit (3), and described control unit (2) includes voltage cell (4), switch unit
(5) and breaking units (6), described control unit (2) output end is equipped with the first ammeter (7) and the second ammeter (8), and described the
One ammeter (7) output end is equipped with CPU(9), breaking units (6) output end is equipped with shutdown unit (10), specific:
It is mechanical that first ammeter (7) and the second ammeter (8) are disposed as accurate current measurement；
The voltage cell (4) is used to detect voltage swing of the aid on safety chip (1), the voltage cell
It (4) include voltage signal detection unit, voltage signal detection unit is by the voltage signal and safety chip of the size detection of voltage
(1) signal of the normal voltage worked normally compares, when detectable voltage signals are greater than the signal of normal voltage, switch unit
(5) the first ammeter (7) are connected a voltage to, when detectable voltage signals are less than the signal of normal voltage, switch unit (5) will be electric
Pressure is connected to the second ammeter (8), and the voltage cell (4) is set as voltmeter；
The alarm unit (3) is for broadcasting the testing result of safety chip (1).
2. the voltage sensor detection device in a kind of safety chip according to claim 1, it is characterised in that: the peace
Full chip (1) input terminal is equipped with external power supply (11), and the external power supply (11) is set as direct current.
3. the voltage sensor detection device in a kind of safety chip according to claim 1, it is characterised in that: the peace
Full chip (1) and voltage cell (4) are electrically connected, and first ammeter (7), the second ammeter (8) and breaking units (6) are equal
It is electrically connected with switch unit (5), the switch unit (5) is set as control PCB, and the breaking units (6) are set as shutting down
Signal projector.
4. the voltage sensor detection device in a kind of safety chip according to claim 2, it is characterised in that: described disconnected
Road unit (6) and shutdown unit (10) are electrically connected, and the shutdown unit (10) is set as external power supply (11) and disconnects, institute
It states shutdown unit (10) and is set as shutdown signal receiver.
5. the voltage sensor detection device in a kind of safety chip according to claim 1, it is characterised in that: described
One ammeter (7) and the second ammeter (8) and CPU(9) be electrically connected, the CPU(9) and control unit (2) with alarm
Unit (3) is electrically connected, and the alarm unit (3) is set as light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821509146.9U CN209117845U (en) | 2018-09-15 | 2018-09-15 | A kind of voltage sensor detection device in safety chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821509146.9U CN209117845U (en) | 2018-09-15 | 2018-09-15 | A kind of voltage sensor detection device in safety chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209117845U true CN209117845U (en) | 2019-07-16 |
Family
ID=67198638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821509146.9U Active CN209117845U (en) | 2018-09-15 | 2018-09-15 | A kind of voltage sensor detection device in safety chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209117845U (en) |
-
2018
- 2018-09-15 CN CN201821509146.9U patent/CN209117845U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120049627A1 (en) | Current collecting box for photovoltaic power generation | |
| CA2790845C (en) | Protective switch with status detection | |
| CN103439627B (en) | Train power supply leakage current test system and detection method | |
| CN105137157A (en) | Alternating- and direct-current high-voltage electricity testing device | |
| CN104655992A (en) | GIS partial discharge detection equipment and method | |
| CN103777112A (en) | Test instrument grounding detection warning device | |
| CN105759172B (en) | Active earthed system abnormal detector and method | |
| CN209117845U (en) | A kind of voltage sensor detection device in safety chip | |
| CN106556771B (en) | A kind of priming system circuitry self test survey method | |
| CN108872689A (en) | A kind of UHVDC Transmission Lines electroscopic device based on feature electric and magnetic fields | |
| CN202149937U (en) | Electric energy meter calibrating device and calibrating system | |
| CN203376404U (en) | Intelligent-type electric field abnormity safety alarming device | |
| CN202928715U (en) | Temperature transmitter with self-detecting function | |
| CN103207342B (en) | A kind of checking experiment grounding intelligent prior-warning device | |
| CN109361357A (en) | A kind of solar power generation intelligent monitor system | |
| CN204964727U (en) | Power detection equipment | |
| CN104188196A (en) | High-voltage early-warning insulation glove | |
| CN204479734U (en) | Fault detector test fixture | |
| CN202676211U (en) | Working state monitoring alarming device for data collector in electric and communication systems | |
| CN107091965A (en) | A kind of electric power electric safe distribution of electric power detection means of anticreep auto-alarm function | |
| CN206930732U (en) | A kind of electric power electric safe distribution of electric power detection means of anticreep auto-alarm function | |
| CN208369206U (en) | A kind of arc light protective device with TEV detection | |
| CN208752157U (en) | Portable high-pressure direct current cabinet PDU socket detector | |
| CN209071636U (en) | A kind of anti-error hanging earthing conductor device | |
| CN204129896U (en) | A kind of fire alarm prior-warning device for aircraft engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |