CN209640454U - A kind of fault detection means and terminal of terminal - Google Patents
A kind of fault detection means and terminal of terminal Download PDFInfo
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- CN209640454U CN209640454U CN201920202406.6U CN201920202406U CN209640454U CN 209640454 U CN209640454 U CN 209640454U CN 201920202406 U CN201920202406 U CN 201920202406U CN 209640454 U CN209640454 U CN 209640454U
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Abstract
The utility model discloses a kind of fault detection means of terminal and terminals, are related to electronic circuit technology field.The fault detection means of the terminal, comprising: isolation circuit and single chip control module；The power panel of the input terminal connection terminal of isolation circuit, and the electrical equipment of the output end connection terminal of isolation circuit；The input terminal and output end of single chip control module connection isolation circuit, for detecting the input voltage signal and output voltage signal of isolation circuit, failure detection result is determined according to the input voltage signal and output voltage signal detected, and sends faulting instruction to the network interface of terminal according to failure detection result.The utility model detects the input voltage signal and output voltage signal of isolation circuit by single chip control module, to determine failure detection result, the long-range abort situation for distinguishing terminal is realized, convenient staff's maintenance terminal failure after sale reduces terminal maintenance cost.
Description
Technical field
The utility model relates to electronic circuit technology field more particularly to the fault detection means and terminal of a kind of terminal.
Background technique
With the fast development of science and technology, the terminals such as DTV, personal computer, intelligent interaction plate are more next
It is more universal, it brings great convenience to people's lives, study and work.
These terminals are commonly configured with such as power panel, mainboard, computer (Personal Computer, PC) module etc.
Device blocks realize various functions so as to enter working condition based on these device blocks.When terminal failure problem,
The failure problems that user terminal can occur offer the staff after sale for generating terminal provisioning quotient or terminal producer, with logical
Know staff's maintenance after sale.The failure problems quoted according to user of staff after sale, can not usually determine in terminal
Which device blocks occurs abnormal, it is therefore desirable to which the various accessories of carried terminal go to repair, and cause the inconvenience of maintenance, increase terminal
Maintenance cost.
Utility model content
The utility model provides the fault detection means and terminal of a kind of terminal, realizes the fault bit of long-range detection terminal
It sets, reduces terminal maintenance cost.
In a first aspect, the utility model embodiment provides a kind of fault detection means of terminal, comprising: isolation circuit and
Single chip control module；
Wherein, the power panel of the input terminal connection terminal of isolation circuit, and the use of the output end connection terminal of isolation circuit
Electric equipment；
Single chip control module connects the input terminal and output end of isolation circuit, for detecting the input voltage of isolation circuit
Signal and output voltage signal determine failure detection result according to the input voltage signal and output voltage signal detected, with
And faulting instruction is sent to the network interface of terminal according to failure detection result.
Second aspect, the utility model embodiment additionally provide a kind of terminal, which includes: as described in relation to the first aspect
The fault detection means of terminal.
The utility model between the power panel of terminal and the electrical equipment of terminal by having increased the fault detection of terminal newly
Isolation circuit in device realizes being isolated between the output of power panel and the input of electrical equipment, so that power panel
Failure and electrical equipment failure are not interfere with each other；And the input terminal of isolating device and output end are connected to fault detection means
In single chip control module so that the single chip control module can detecte isolation circuit input voltage signal and output electricity
Signal is pressed, detects that input voltage signal and output voltage signal determine failure detection result and foundation so as to foundation
Failure detection result sends faulting instruction to the network interface of the terminal so that after sale staff received according to net background therefore
The abort situation of terminal is determined in barrier instruction, the long-range abort situation for distinguishing terminal is realized, to prompt staff after sale
It carries corresponding accessory to go to repair, achievees the purpose that facilitate maintenance terminal failure, reduce terminal maintenance cost.
Detailed description of the invention
Fig. 1 is that the output end of the power panel in existing terminal is directly connected to the schematic diagram of electrical equipment；
Fig. 2 is the structural block diagram of the fault detection means of the terminal of the utility model embodiment；
Fig. 3 is the structural block diagram of one of one alternative embodiment of the utility model fault detection means of terminal；
Fig. 4 is the structural block diagram of one of the utility model another alternative embodiment fault detection means of terminal；
Fig. 5 is the structural block diagram of one of the utility model another alternative embodiment fault detection means of terminal；
Fig. 6 is the structural schematic diagram of one of one alternative embodiment of the utility model transistor isolation module；
Fig. 7 is the structural schematic diagram of one of one alternative embodiment of the utility model fault detection means of terminal；
Fig. 8 is the structural representation of one of the utility model another alternative embodiment fault detection means of terminal
Figure；
Fig. 9 is the structural block diagram of one of the utility model embodiment terminal.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
The output end of power panel is usually directly connected to the electricity consumptions such as mainboard, power amplifier module, PC module by existing terminal
The input terminal of equipment, as shown in Figure 1, so as to which the voltage signal that power panel 110 exports directly is input to electrical equipment 120
In, i.e., power panel 110 can directly power for electrical equipment 120.But the output end of power panel is directly connected to electrical equipment
Input terminal, the equipment fault that the power failure for causing power panel to occur and electrical equipment occur interferes with each other, and increases work after sale
Make the difficulty of personnel's maintenance failure, and increases terminal maintenance cost.
The utility model proposes a kind of fault detection means of terminal, to pass through the isolation electricity in the fault detection means
Being isolated between the output of power panel and the input of electrical equipment is realized on road, so that power panel failure and electrical equipment failure are mutual
It does not interfere.As shown in Fig. 2, the fault detection means 200 of the terminal may include: isolation circuit 210 and single chip control module
220.Wherein, the power panel 230 of the input terminal connection terminal of isolation circuit 210, and the output end of isolation circuit 210 connects the end
The electrical equipment 240 at end.Single chip control module 220 connects the input terminal and output end of isolation circuit 210, for detecting isolation
The input voltage signal VI and output voltage signal VO of circuit 210, according to the input voltage signal VI and output voltage detected
Signal VO determines failure detection result, and sends faulting instruction to the network interface of terminal according to failure detection result.The failure refers to
The abort situation for being determined for terminal is enabled, so as to reduce breakdown maintenance difficulty.
Specifically, the voltage that power panel 230 exports can be output to the input terminal of isolation circuit 210, so that single-chip microcontroller
Control module 220 can detect corresponding input voltage signal VI in the input terminal of the isolation circuit 210, so that monolithic
Machine control module 220 can distinguish whether power panel breaks down based on input voltage signal VI.For example, detecting input
When voltage signal VI is no-voltage signal, single chip control module 220 can be determined that power panel breaks down.Wherein, no-voltage
Signal can refer to the signal in the input terminal no-voltage of isolation circuit 210.
The input terminal of output end the connection single chip control module 220 and electrical equipment 240 of isolation circuit 210, thus logical
It is the electrical equipment 240 power supply based on the voltage that power panel 230 exports.Specifically, exporting normal situation in power panel 230
Under, such as when power panel 230 exports normal operating voltage, isolation circuit 220 can be based on the electricity of the power panel 230 output
Pressure exports the electrical equipment 240 to electrical equipment 240 by output end and works normally required voltage, so that single-chip microcontroller control
Molding block 220 can detect output voltage signal VO in the output end of the isolation circuit 210, so as to based on output electricity
Pressure signal VO and input voltage signal VI distinguishes whether terminal breaks down.For example, single chip control module 220 can be by sentencing
Whether the difference between disconnected output voltage signal VO and input voltage signal VI reaches preset difference value, to distinguish whether terminal occurs
Failure.If the difference between output voltage signal VO and input voltage signal VI is not up to preset difference value, terminal can be determined
Normally, such as can determine, power panel 230 in terminal and electrical equipment 240 are without failure.If output voltage signal VO and defeated
Enter the difference between voltage signal VI and reach preset difference value, then can determine that terminal breaks down, and can be according to output voltage
Signal VO and input voltage signal VI determines abort situation, and using the abort situation as failure detection result, to be based on
Failure detection result generates corresponding faulting instruction, and the faulting instruction is sent to the corresponding net background of terminal by network interface,
Allow the equal staff after sale of maintenance work personnel to receive faulting instruction according to net background and determines terminal
Abort situation realizes the long-range abort situation for distinguishing terminal, and then can be based on abort situation prompt staff after sale
It carries corresponding accessory to go to repair, reaches and maintenance terminal failure is facilitated to obtain purpose, reduce terminal maintenance cost.
It should be noted that the electrical equipment 240 in the utility model may include the various devices for needing electricity consumption in terminal
Part, module, unit, such as may include mainboard, PC module, power amplifier module.The power amplifier module may include power amplifier etc..
In the concrete realization, the fault detection means 200 of terminal provided by the utility model can be somebody's turn to do using in the terminal
Terminal may include backlight module, so as to be shown based on backlight module.Optionally, as shown in figure 3, the failure of terminal
Detection device 200 can also include: backlight module 310.310 one end of backlight module connects power panel 230, and other end connection is single
Piece machine control module 220.Single chip control module 220 can be also used for the disablement signal Fail that detection backlight module 310 exports,
And backlight module failure can be determined when detecting disablement signal Fail, backlight module failure is determined as failure detection result.
As it can be seen that 310 one end of backlight module is connected to power supply by the fault detection means 200 of terminal provided by the utility model
Plate 230 allows power panel 230 for the power supply of backlight module 310, and the other end of backlight module 310 can be connected to list
Piece machine control module 220, so that the disablement signal Fail of the backlight module 310 output can be for transmission to single chip control module
220, allow single chip control module 220 to determine backlight module failure according to the disablement signal Fail detected, and can incite somebody to action
Backlight module failure to generate corresponding faulting instruction according to the failure detection result, and will give birth to as failure detection result
At faulting instruction be sent to network interface, the faulting instruction to be sent to the net background of terminal by network interface.
In an alternative embodiment of the utility model, backlight module 310 may include backlight integrated circuit
(Integrated Circuit, IC) module.The disablement signal output pin of backlight IC module connects single chip control module,
For exporting disablement signal Fail.Specifically, the backlight IC module in the utility model embodiment can be placed on power panel 230
Secondary, and backlight IC module can come with disablement signal output pin, such as can be a constant current IC.When backlight IC mould
When block is in guard mode, disablement signal Fail can be exported by its included disablement signal output pin, so that with this
The single chip control module 220 of backlight IC module connection can detecte the disablement signal Fail of backlight IC module output, with
Backlight module failure can be identified based on disablement signal Fail, determine the abort situation of terminal.
As an example, backlight IC module under normal circumstances, the output of the disablement signal output pin of backlight IC
Signal is low level signal.Under any abnormal conditions of backlight IC module, the disablement signal in backlight IC module can be triggered
The corresponding circuit of output pin becomes to open a way, and causes the voltage of the disablement signal output pin to be pulled up voltage high, makes gain and loss
The signal of effect signal output pin output becomes high level signal, and the level signal is the disablement signal of backlight IC module
Fail, so that single chip control module 220 can determine that backlight IC module breaks down according to disablement signal Fail.
It should be noted that the upper pull-up voltage in this example can be lower than 5.5 volts, the utility model is not specifically limited this.
In the concrete realization, the power panel 230 of terminal may include one or more output ends, to be exported by output end
Voltage is powered for one or more electrical equipments 240 in the terminal.Therefore, in an alternative embodiment of utility model,
Isolation circuit 210 may include at least one every empty branch, with by isolation branch realize each output end of power panel 230 with
The isolation of electrical equipment 240.As shown in figure 4, each every empty branch 410 may include voltage transformation module 411 and transistor every
From module 412.Specifically, one end of the voltage transformation module 411 in each isolation branch 410 connects power panel 230, the other end
The transistor isolation module 412 in the isolation branch 410 is connected, the first voltage for exporting power panel 230 is converted to mesh
Voltage is marked, and, it is the power supply of transistor isolation module 412 based on target voltage.As shown in figure 4, the input electricity of isolation circuit 210
Pressure signal VI can be input to each voltage transformation module 411 every in empty branch 410, so that voltage transformation module 411 can be with
Based on input voltage signal VI, the voltage that power panel exports is converted into target voltage, with for transistor isolation module 412 into
Row power supply.Wherein, the output end of the input terminal connection power panel 230 of transistor isolation module 412, and the transistor isolation module
The input terminal of 412 output end connection electrical equipment 240, for by the input terminal of the output end of power panel 230 and electrical equipment
240 are isolated.It, can be by the transistor isolation module 412 by the output of isolation circuit 210 in the normal situation of terminal
Voltage signal VO is transferred to electrical equipment 240, to meet the power demand of electrical equipment 240 for the power supply of electrical equipment 240.
In the utility model embodiment, optionally, transistor isolation module 412 be can specifically include: Integrated circuit IC
Unit Q1 and isolated transistor Q2.As shown in figure 5, the first end of isolated transistor Q2 can connect the output end of power panel 230, every
The third end of input terminal and isolated transistor Q2 that second end from transistor Q2 can connect electrical equipment can connect integrated
IC circuit unit Q1.It changes and says and it, integrated circuit IC elements Q1 can connect the third end of isolated transistor Q2, and the integrated circuit
IC unit Q1 can be used for that it is brilliant to close isolation when the difference of input voltage signal VI and output voltage signal VO reaches preset difference value
Body pipe Q2.
Wherein, isolated transistor Q2 can be used for isolated power supply plate 230 and electrical equipment 240, and isolated transistor Q2
It is controlled by integrated circuit IC elements Q1, i.e. integrated circuit IC elements Q1 can be controlled by connecting the third end of isolated transistor Q2
Whether isolated transistor Q2 processed is connected.Specifically, integrated circuit IC elements Q1 can detecte the input voltage letter of isolation circuit 210
Difference number between VI and the output voltage signal VO of the isolation circuit 210.When input voltage signal VI and output voltage signal
When difference between VO reaches preset difference value, integrated circuit IC elements Q1 can be dragged down the driving voltage of isolated transistor Q2,
The voltage at the third end of isolated transistor Q2 is dragged down, to close isolated transistor Q2.
In an alternative embodiment of the utility model, voltage transformation module 411 can be boost module, specifically can be with
Boost in voltage for exporting power panel is supplied to isolation branch as supply voltage (Volt Current to target voltage
Condenser, VCC) it uses.The boost module can be realized by increasing the modes such as winding power, such as can be DC TO DC liter
Die block such as reaches target voltage so that the target voltage of output can satisfy the power demand of transistor isolation module
The voltage total value of the driving voltage of the voltage and transistor of input voltage signal VI.
On the basis of the above embodiments, optionally, transistor isolation module 412 can also include divider resistance.Such as Fig. 6
Shown, divider resistance can specifically include first resistor R1, second resistance R2 and 3rd resistor R3.Integrated circuit IC elements Q1
It can specifically include the first transistor TR1 and second transistor TR2.The output end of one end connection boost module of first resistor R1
VI+5V, the other end connect the first transistor TR1 first end Pin1 and second end Pin2 and second transistor TR2 first
Hold Pin5.The output end VI+5V and first resistor R1 of one end connection boost module of second resistance R2, other end connection isolation are brilliant
The third end of body pipe Q2 and the second end Pin3 of second transistor TR2.One end connection second transistor TR2's of 3rd resistor R3
Third end Pin4, the other end connect the input terminal of boost module and the first end of isolated transistor Q2.
It in the concrete realization, can be by adjusting the ratio between first resistor R2 and 3rd resistor R3, to adjust isolation electricity
Difference of the road between input voltage signal VI and output voltage signal VO is how many when, carries out protection act.The first transistor
TR1 and second transistor TR1 can be triode, as shown in fig. 6, the first transistor TR1 in integrated circuit IC elements Q1
It can be NPN type triode (NPN Type Triode) with second transistor TR1, wherein the third of the first transistor TR1
End Pin3 can be the collector of NPN type triode.Certainly, the first transistor and second transistor in integrated circuit IC elements
It is also possible to different types of triode, if the first transistor can be PNP transistor, second transistor is NPN triode etc.,
The utility model to this with no restriction.
Isolated transistor Q2 can be metal-oxide semiconductor (MOS) (Metal Oxide Semiconductor, MOS) crystal
Pipe.As shown in fig. 6, the first end of isolated transistor Q2 can be that can be when isolated transistor Q2 is pipe MOS transistor
The source S of MOS transistor, the second end of isolated transistor Q2 can be that can be the drain D of MOS transistor, isolated transistor
The third end of Q2 can be the grid G that can be MOS transistor.
In the utility model, optionally, transistor isolation module 412 can also include: capacitor and at least one pressure stabilizing two
Pole pipe Z1.Wherein, capacitor specifically includes first capacitor C1, the second capacitor C2 and third capacitor C3.Divider resistance can also include
4th resistance R4.As shown in fig. 7, the first end (i.e. source S) of one end connection MOS transistor of zener diode Z1, the other end
Connect the third end (i.e. grid G) of MOS transistor.Zener diode Z1 can sit on voltage pressure stabilizing to the driving of MOS transistor
Protective effect.The input terminal of one end connection boost module 710 of first capacitor C1, the other end connect the of the first transistor TR1
The first end Pin5 of one end Pin1 and second end Pin2 and second transistor TR2.One end of second capacitor C2 connects MOS crystal
The first end of pipe, the other end connect the third end of MOS transistor.The output of one end connection boost module 710 of third capacitor C3
End and first resistor R1, the other end connect the input terminal of boost module 710 and the output end of power panel.One end of 4th resistance R4
Third end and the second resistance R3 of MOS transistor are connected, the other end connects the second end (i.e. drain D) and electricity consumption of MOS transistor
The input terminal of equipment.
In the present invention, the electrical equipment 240 in terminal can specifically include: mainboard, power amplifier module and/or PC mould
Block etc..In a kind of optional embodiment, a corresponding isolation branch can be set for each electrical equipment in terminal,
Each electrical equipment to be isolated with power panel using the corresponding isolation branch of every kind of electrical equipment.
Optionally, the electrical equipment 240 in the utility model specifically may include mainboard and computer PC module, and branch is isolated
410 can specifically include: the first isolation branch and the second isolation branch.As shown in figure 8, the voltage of the first isolation branch 810 becomes
The first voltage output end of block connection power panel 230 is changed the mold, and the transistor isolation module of the first isolation branch 810 connects mainboard
Input terminal.In the concrete realization, the voltage that can be exported based on the first voltage output end of power panel 230 generates the first isolation
The input voltage signal of branch 810, such as when the voltage that the first voltage output end of power panel 230 exports is 12 volts of voltage,
The input voltage signal of the first isolation branch 810 can be identified as 12Vi, and can be by the input electricity of the first isolation branch 810
Pressure signal 12Vi is transferred to single chip control module 220, allows single chip control module 220 according to the first isolation branch
810 input voltage signal 12Vi determines whether power panel 230 can normally export 12 volts of voltages；And first isolation branch
The voltage that road 810 can be exported based on the first voltage output end of power panel 230, to mainboard output the first isolation branch 810
Output voltage signal 12Vo, while output voltage signal 12Vo can be transferred to single chip control module 220, so that monolithic
Machine control module 220 can determine whether mainboard can be normal according to the output voltage signal 12Vo of the first isolation branch 810
Work.
Similarly, the second voltage output end of the voltage transformation module connection power panel 230 of the second isolation branch 820, and the
The input terminal of the transistor isolation module connection PC module of two isolation branches 820.In the concrete realization, power panel can be based on
The voltage of 230 second voltage output end output generates the input voltage signal of the second isolation branch 820, such as in power panel 230
The voltage of second voltage output end output when being 18 volts of voltage, the input voltage signal of the second isolation branch 820 can be with
It is identified as 18Vi, and the input voltage signal 18Vi of the second isolation branch 820 can be transferred to single chip control module 220,
Single chip control module 220 is allowed to determine power panel 230 according to the input voltage signal 18Vi of the second isolation branch 820
Whether 18 volts of voltages can be exported normally；And the voltage that can be exported based on the second voltage output end of power panel 230,
To the output voltage signal 18Vo of PC module output the second isolation branch 820, while can be by the defeated of the second isolation branch 820
Voltage signal 18Vo is transferred to single chip control module 220 out, allows single chip control module 220 according to second isolation
The output voltage signal 18Vo of branch 820 determines whether PC module can work normally.
Wherein, single chip control module 220 determines failure according to the input voltage signal and output voltage signal detected
It is preset first voltage signal that testing result, which may include: the input voltage signal that branch 810 is isolated when first, and described
The output voltage signal of first isolation branch 810 is not preset mainboard voltage signal, and main board failure is determined as fault detection
As a result；When second isolation branch 820 input voltage signal be preset second voltage signal, and it is described second isolation branch
820 output voltage signal is not preset PC module voltage signal, and PC module failure is determined as failure detection result.
For example, single chip control module 220 is detecting that the input voltage signal 12Vi of the first isolation branch 810 has electricity
Pressure, and when the output voltage signal 12Vo no-voltage of the first isolation branch 810, it can determine the input of the first isolation branch 810
Voltage signal 12Vi is preset first voltage signal, and the output voltage signal 12Vo of the first isolation branch 810 is not preset
Main board failure so as to determine main board failure, and can be determined as failure detection result by mainboard voltage signal, can then be incited somebody to action
The failure detection result forms faulting instruction, and faulting instruction is sent to network interface.When detecting the first isolation branch 810
Input voltage signal 12Vi has voltage, and detect backlight module output Fail signal no-voltage when, it can be determined that backlight mould
Group breaks down, and backlight module failure is determined as failure detection result.
For another example, single chip control module 220 is detecting that the input voltage signal 18Vi of the second isolation branch 820 has electricity
Pressure, and when the output voltage signal 18Vo no-voltage of the second isolation branch 820, it can determine the input of the second isolation branch 820
Voltage signal 18Vi is preset second voltage signal, and the output voltage signal 18Vo of the second isolation branch 820 is not preset
PC module failure so as to determine PC module failure, and can be determined as failure detection result, then by PC module voltage signal
The failure detection result can be formed into faulting instruction, and faulting instruction is sent to network interface.
In an alternative embodiment of the utility model, electrical equipment 240 further includes that specific electricity consumption device 243 such as can be with
It is power amplifier module etc..Correspondingly, isolation branch further include: branch 830 is isolated in third.The voltage transformation of third isolation branch 830
Module connects the tertiary voltage output end of power panel 230, and the transistor isolation module of third isolation branch 830 connects specific use
The input terminal 243 of electrical part.Single chip control module determines event according to the input voltage signal and output voltage signal detected
Hinder testing result, can also include: when third isolation branch 830 input voltage signal be preset tertiary voltage signal, and
The output voltage signal that branch 830 is isolated in third is not preset operating voltage signal, and main board failure is determined as fault detection
As a result；When the input voltage signal of the first isolation branch 810 is not first voltage signal, the input electricity of the second isolation branch 820
Pressing signal is not second voltage signal, and, the input voltage signal that branch 830 is isolated in third is not tertiary voltage signal, will
Power failure is determined as failure detection result.
In the concrete realization, the voltage that can be exported based on the tertiary voltage output end of power panel 230 generates third isolation
The input voltage signal of branch 830 should such as when the voltage that the tertiary voltage output end of power panel 230 exports is 5 volts of voltage
The input voltage signal of third isolation branch 830 can be identified as 5Vi, and the third can be isolated to the input voltage of branch 830
Signal 5Vi is transferred to single chip control module 220 so that branch 830 can be isolated according to the third in single chip control module 220
Input voltage signal 5Vi determine whether power panel 230 can normally export 5 volts of voltages；And power panel can be based on
The voltage of 230 tertiary voltage output end output, Xiang Teding electricity consumption device 243 export the output voltage of third isolation branch 830
Signal 5Vo, while the output voltage signal 5Vo that branch 830 is isolated in the third can be transferred to single chip control module 220,
Single chip control module 220 is allowed to determine that mainboard whether can according to the output voltage signal 5Vo of third isolation branch 830
It is enough to work normally.
For example, single chip control module 220 has voltage in the input voltage signal 5Vi for detecting that branch 830 is isolated in third,
And when the output voltage signal 5Vo no-voltage of third isolation branch 830, it can determine the input voltage of third isolation branch 830
Signal 5Vi is preset tertiary voltage signal, and the output voltage signal 5Vo of third isolation branch 830 is not preset work electricity
Signal is pressed, so as to determine main board failure, and main board failure can be determined as to failure detection result, it then can be by the failure
Testing result forms faulting instruction, and faulting instruction is sent to network interface.In addition, single chip control module 220 is detecting
The input voltage signal 18Vi and third of the input voltage signal 12Vi of first isolation branch 810, the second isolation branch 820
When the equal no-voltage of input voltage signal 5Vi of branch 830 is isolated, the input voltage signal of the first isolation branch 810 can be determined
12Vi is not first voltage signal, and the input voltage signal 18Vi of the second isolation branch 820 is not second voltage signal, and,
The input voltage signal 5Vi that branch 830 is isolated in third is not tertiary voltage signal, so as to determine power failure, i.e. power supply
Plate breaks down, and power failure can be determined as to failure detection result, then the failure detection result can be formed failure
Instruction, to send the faulting instruction by network interface, so that net background can determine end according to the faulting instruction received
The abort situation at end reduces breakdown maintenance difficulty, to reduce breakdown maintenance cost.
To sum up, the fault detection means 200 of terminal provided by the utility model can be in application terminal, can be by this
The isolation circuit 210 of fault detection means 200 realizes being isolated for power panel 230 in terminal and electrical equipment, and can pass through
Single chip control module 220 detects the input voltage signal VI and output voltage signal VO of isolation circuit 210, is detected with foundation
Input voltage signal VI and output voltage signal VO determine failure detection result, then can send the event by the network interface of terminal
Hinder the corresponding faulting instruction of testing result, allows net background and/or staff after sale based on faulting instruction determination
The abort situation of terminal out realizes the abort situation that long-range control distinguishes terminal, facilitates maintenance terminal failure, reduces terminal dimension
Accomplish this.
In the concrete realization, when the terminals such as intelligent interaction large-size screen monitors are mounted with fault detection dress provided by the utility model
After setting 200, faulting instruction can be sent to terminal backstage by the fault detection means 200 and network, which is occurred
Terminal fault be reported to terminal backstage, the faulting instruction that staff after sale is received by terminal backstage is true
Determine the corresponding abort situation of terminal fault, can such as determine that abort situation is in mainboard, or in power panel, PC module, backlight
Mould group etc. goes replacement that breakdown maintenance, a step can be completed so as to carry corresponding device according to the abort situation determined
In place, breakdown maintenance number is reduced, breakdown maintenance cost is reduced.
Referring to Fig. 9, the structural block diagram of one of the utility model embodiment terminal is shown.The terminal 900 can wrap
It includes: fault detection means 200 described in above-described embodiment.
It should be noted that terminal can also include that the electricity consumptions such as power panel 230, PC module, power amplifier module, mainboard are set
Standby 240, backlight module 310 etc., such as can be DTV, computer, computer flat panel, projector or interactive intelligent tablet computer, this
Utility model to this with no restriction.
Above-mentioned terminal may include the fault detection means 200 of terminal provided by the utility model any embodiment, have
The corresponding functional module of fault detection means 200 and beneficial effect of terminal provided by the utility model.
It should be noted that for terminal embodiment, due to itself and the basic phase of 200 embodiment of fault detection means
Seemingly, so being described relatively simple, related place illustrates referring to the part of 200 embodiment of fault detection means.
It is worth noting that, included each branch and module are only according to function in above-mentioned fault detection means 200
What logic was divided, but be not limited to the above division, as long as corresponding functions can be realized；In addition, each function
The specific name of unit is also only for convenience of distinguishing each other, the protection scope being not intended to limit the utility model.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (10)
1. a kind of fault detection means of terminal characterized by comprising isolation circuit and single chip control module；
Wherein, the power panel of the input terminal connection terminal of the isolation circuit, and described in the output end connection of the isolation circuit
The electrical equipment of terminal；
The single chip control module connects the input terminal and output end of the isolation circuit, for detecting the isolation circuit
Input voltage signal and output voltage signal determine fault detection according to the input voltage signal and output voltage signal detected
As a result, and sending faulting instruction to the network interface of the terminal according to the failure detection result.
2. the apparatus according to claim 1, which is characterized in that further include: backlight module；
Described backlight module one end connects the power panel, and the other end connects the single chip control module；
The single chip control module is also used to detect the disablement signal of the backlight module output, and is detecting the failure
Backlight module failure is determined when signal, and the backlight module failure is determined as the failure detection result.
3. device according to claim 1 or 2, which is characterized in that the isolation circuit includes at least one isolation branch；
One end of voltage transformation module in each isolation branch connects the power panel, and the other end connects in the isolation branch
Transistor isolation module, the first voltage for exporting the power panel is converted to target voltage, and, be based on the mesh
Mark voltage is the transistor isolation module for power supply；
The input terminal of the transistor isolation module connects the output end of the power panel, and the transistor isolation module is defeated
Outlet connects the input terminal of the electrical equipment, for by the input terminal of the output end of the power panel and the electrical equipment into
Row isolation.
4. device according to claim 3, which is characterized in that the transistor isolation module includes: Integrated circuit IC list
Member and isolated transistor；
The first end of the isolated transistor connects the output end of the power panel, and the second end of the isolated transistor connects institute
State the input terminal of electrical equipment, wherein the electrical equipment includes: mainboard, power amplifier module and/or computer PC module；
The integrated circuit IC elements connect the third end of the isolated transistor, for the input voltage signal with it is described
When the difference of output voltage signal reaches preset difference value, the isolated transistor is closed.
5. device according to claim 4, which is characterized in that the voltage transformation module is boost module, the crystal
Pipe isolation module further includes divider resistance, and the divider resistance includes first resistor, second resistance and 3rd resistor, the collection
It include the first transistor and second transistor at IC circuit unit；
One end of the first resistor connects the output end of the boost module, and the other end connects the first of the first transistor
The first end of end and second end and the second transistor；
One end of the second resistance connect the boost module output end and the first resistor, other end connection it is described every
The second end at third end and the second transistor from transistor；
One end of the 3rd resistor connects the third end of the second transistor, and the other end connects the input of the boost module
The first end at end and the isolated transistor.
6. device according to claim 5, which is characterized in that the first transistor and the second transistor are three
Pole pipe, the isolated transistor be metal-oxide semiconductor (MOS) MOS transistor, the transistor isolation module further include capacitor and
Zener diode, the capacitor include first capacitor, the second capacitor and third capacitor, and the divider resistance further includes the 4th electricity
Resistance；
One end of the zener diode connects the first end of the MOS transistor, and the other end connects the of the MOS transistor
Three ends；
One end of the first capacitor connects the input terminal of the boost module, and the other end connects the first of the first transistor
The first end of end and second end and the second transistor；
One end of second capacitor connects the first end of the MOS transistor, and the other end connects the third of the MOS transistor
End；
One end of the third capacitor connects the output end of the boost module and the first resistor, the other end connect the liter
The output end of the input terminal of die block and the power panel；
One end of 4th resistance connect the MOS transistor third end and the second resistance, the other end connection described in
The input terminal of the second end of MOS transistor and the electrical equipment.
7. device according to claim 3, which is characterized in that the electrical equipment includes mainboard and computer PC module,
The isolation branch includes: the first isolation branch and the second isolation branch；
The voltage transformation module of the first isolation branch connects the first voltage output end of the power panel, and described first every
Transistor isolation module from branch connects the input terminal of the mainboard；
The voltage transformation module of the second isolation branch connects the second voltage output end of the power panel, and described second every
Transistor isolation module from branch connects the input terminal of the PC module；
The single chip control module determines failure detection result according to the input voltage signal and output voltage signal detected,
Include:
When first isolation branch input voltage signal be preset first voltage signal, and it is described first isolation branch output
Voltage signal is not preset mainboard voltage signal, and main board failure is determined as failure detection result；
When second isolation branch input voltage signal be preset second voltage signal, and it is described second isolation branch output
Voltage signal is not preset PC module voltage signal, and PC module failure is determined as failure detection result.
8. device according to claim 7, which is characterized in that the electrical equipment further includes specific electricity consumption device, described
Branch is isolated further include: branch is isolated in third；
The voltage transformation module of third isolation branch connects the tertiary voltage output end of the power panel, and the third every
Transistor isolation module from branch connects the input terminal of the specific electricity consumption device；
The single chip control module determines failure detection result according to the input voltage signal and output voltage signal detected,
Further include:
When third isolation branch input voltage signal be preset tertiary voltage signal, and the third isolation branch output
Voltage signal is not preset operating voltage signal, and main board failure is determined as failure detection result；
When the input voltage signal of the first isolation branch is not the first voltage signal, the input voltage letter of the second isolation branch
It number is not the second voltage signal, and, the input voltage signal that branch is isolated in third is not the tertiary voltage signal, will
Power failure is determined as failure detection result.
9. the apparatus of claim 2, which is characterized in that the backlight module includes backlight Integrated circuit IC module；
The disablement signal output pin of the backlight Integrated circuit IC module connects the single chip control module, for exporting
State disablement signal.
10. a kind of terminal, which is characterized in that the terminal includes any fault detection means in claim 1 to 9.
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| CN201920202406.6U CN209640454U (en) | 2019-02-15 | 2019-02-15 | A kind of fault detection means and terminal of terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114002589A (en) * | 2021-11-02 | 2022-02-01 | 苏州纳芯微电子股份有限公司 | Digital isolation unit fault detection method and detection system |
| CN116780873A (en) * | 2023-08-21 | 2023-09-19 | 厚凯(北京)医疗科技有限公司 | Main unit of medical energy instrument, method executed by main unit and medical energy instrument |
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2019
- 2019-02-15 CN CN201920202406.6U patent/CN209640454U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114002589A (en) * | 2021-11-02 | 2022-02-01 | 苏州纳芯微电子股份有限公司 | Digital isolation unit fault detection method and detection system |
| CN116780873A (en) * | 2023-08-21 | 2023-09-19 | 厚凯(北京)医疗科技有限公司 | Main unit of medical energy instrument, method executed by main unit and medical energy instrument |
| CN116780873B (en) * | 2023-08-21 | 2024-01-02 | 厚凯(北京)医疗科技有限公司 | Main unit of medical energy instrument, method executed by main unit and medical energy instrument |
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