CN208285450U - Slip lid position detecting device and projector - Google Patents
Slip lid position detecting device and projector Download PDFInfo
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- CN208285450U CN208285450U CN201820787671.0U CN201820787671U CN208285450U CN 208285450 U CN208285450 U CN 208285450U CN 201820787671 U CN201820787671 U CN 201820787671U CN 208285450 U CN208285450 U CN 208285450U
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Abstract
The utility model relates to porjector technology field, a kind of slip lid position detecting device and projector are provided.The device specifically includes: swept resistance and detection control module for detecting position of the slip lid relative to covered component.Wherein, first the first level of termination of swept resistance, the second termination of swept resistance are different from the second electrical level of the first level, and the tap of swept resistance is fixedly connected with slip lid, while being connect with detection control module.In slip lid sliding process, tap is driven to slide on swept resistance, so that the level value and slip lid in tap have corresponding relationship relative to the position of covered component, control module is detected after the level value that detection obtains in tap, it will be able to which position of the slip lid relative to covered component is determined according to this corresponding relationship.The slip lid position detecting device can also judge slip lid according to the position of the slip lid of acquisition, and whether there was a mechanical failure.
Description
Technical field
The utility model relates to porjector technology fields, in particular to a kind of slip lid position detecting device and projection
Instrument.
Background technique
Projector, also known as projector are a kind of equipment that can be projected image or video on curtain, can be by not
The equipment phases such as the same computer of interface together, VCD machine, DVD player, BD machine, game machine, digital camera, DV, smart phone
Connection is to receive corresponding picture signal or vision signal from above equipment and play.Projector is widely used in family, office
There are CRT, the different types such as LCD, DLP in room, school and public place of entertainment according to working method difference.
Present novel projector nearly all has a lens slip cover, and when shutdown, slip lid is closed, by camera lens and it is extraneous every
From, avoid dust and scratch；When booting, slip lid is sliped off, and camera lens is exposed, and projects image.It can be by detecting slip lid phase
It determines whether slip lid slides in place for the position of camera lens, but in the prior art, slip lid can not be accurately detected out
Current location.
Utility model content
In view of this, the utility model embodiment provides a kind of slip lid position detecting device and projector, passes through setting and slide
Dynamic resistance, to solve the above technical problems.
The embodiments of the present invention are achieved through the following technical solutions:
In a first aspect, the utility model embodiment provides a kind of slip lid position detecting device, for detect slip lid relative to
The position of covered component, slip lid can cover covered component by sliding or expose covered component, the device packet
Swept resistance and detection control module are included, wherein first the first level of termination of swept resistance, the second termination of swept resistance
Different from the second electrical level of the first level, the tap of swept resistance is fixedly connected with slip lid, drives tap in cunning when slip lid slides
It is slided on dynamic resistance, thus the second end of resistance value and tap and swept resistance between tap and the first end of swept resistance
Between resistance value correspondingly change, therefore the level value in tap also correspondingly changes, it is clear that the level value is opposite with slip lid
It is unique corresponding in the position of covered component.
The tap for detecting control module and swept resistance connects, and detection control module is able to detect the level obtained in tap
Value, according to set forth above, level value in tap with slip lid be relative to the position of covered component it is unique corresponding, therefore
It obtains the level value and is assured that position of the slip lid relative to covered component.It obviously, according to swept resistance the characteristics of, should
Level value is continuous level value, so that slip lid position detecting device can detecte out the exact position of slip lid.Further, exist
In certain embodiments, if there was a mechanical failure in moving process for slip lid, such as slip lid exceeds normal moving range, or
Person is stuck in moving process, and detection control module can judge slip lid according to the position of slip lid, and whether there was a mechanical failure.
With reference to first aspect, in the first possible embodiment of first aspect, detection control module is provided with mould
Number conversion port, analog-to-digital conversion port are connect with tap, and detection control module obtains the electricity in tap by analog-to-digital conversion port
Signal simultaneously converts electrical signals to level value.In this embodiment, detection control module is independent component.
With reference to first aspect, in second of possible embodiment of first aspect, detection control module includes modulus
Converting unit and control unit, wherein AD conversion unit is connect with tap, and AD conversion unit obtains the telecommunications in tap
Number and convert electrical signals to level value；Control unit is connect with AD conversion unit, and control unit is obtained from AD conversion unit
Obtain level value.In this embodiment, detection control module is the combination of two kinds of components of AD conversion unit and control unit.
With reference to first aspect, in the third possible embodiment of first aspect, slip lid position detecting device is also wrapped
Motor is included, motor is connect with detection control module and slip lid respectively, detection control module control motor driven slip lid sliding.?
In the embodiment, slip lid is in motor driven lower slider, and in other embodiments, it is sliding that user can also manually control slip lid
It is dynamic.
With reference to first aspect or the first possible embodiment of first aspect is into the third possible embodiment
Any one, in the 4th kind of possible embodiment of first aspect, slip lid position detecting device further includes display module,
Display module is connect with detection control module, and display module can show the mechanical breakdown information in relation to slip lid.
With reference to first aspect or the first possible embodiment of first aspect is into the third possible embodiment
Any one, in the 5th kind of possible embodiment of first aspect, slip lid position detecting device further includes voice prompting
Module, voice cue module are connect with detection control module, and voice cue module can play the mechanical breakdown in relation to slip lid
Speech prompt information.
With reference to first aspect or the first possible embodiment of first aspect is into the third possible embodiment
Any one, in the 6th kind of possible embodiment of first aspect, slip lid position detecting device further includes state instruction
Lamp, status indicator lamp are connect with detection control module, and status indicator lamp can pass through the physics such as the switch of itself, color, brightness
Characteristic conveys corresponding status information to user, which can characterize the type of the mechanical breakdown of slip lid.
With reference to first aspect or the first possible embodiment of first aspect is into the third possible embodiment
Any one, in the 7th kind of possible embodiment of first aspect, the first termination power of swept resistance, swept resistance
Second end ground connection, i.e., the first level takes high level, and second electrical level takes low level, this be swept resistance one kind it is fairly simple
Connection type is not limited to such connection type in practice certainly.
The 7th kind of possible embodiment with reference to first aspect, in the 8th kind of possible embodiment of first aspect
In, covered component is camera lens.Here camera lens can be the camera lens of projector, is also possible to other Image Acquisition, handles, broadcasts
Put the camera lens of equipment, such as the camera lens of digital camera.In fact, covered component can also be that other component, such as detection are set
Standby detection probe etc..
Second aspect, the utility model embodiment provide a kind of projector, comprising:
Projector main body is provided with camera lens on projector main body, is provided with slip lid in front of camera lens；
The slip lid position detecting device that the possible embodiment of any one of first aspect or first aspect provides, slip lid
Position detecting device is mounted on projector main body.
The projector can be accurately detected position of the slip lid relative to camera lens of camera lens, in some embodiments, throw
Shadow instrument can also further determine that slip lid according to the position, and whether there was a mechanical failure, so that it is guaranteed that the normal use of projector.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 shows the schematic diagram of slip lid position detection structure in the prior art；
Fig. 2 shows the structural schematic diagrams for the slip lid position detecting device that the utility model first embodiment provides；
Fig. 3 shows the functional block diagram of the slip lid position detecting device of the utility model first embodiment offer；
Fig. 4 shows the functional block diagram of the slip lid position detecting device of the utility model second embodiment offer.
In figure: 10- slip lid position detecting device；100- slip lid；200- conductive sheet；300- processor；400- sliding
Resistance；410- tap；500- detects control module；510- analog-to-digital conversion port；520- AD conversion unit；530- control
Unit processed；600- motor；700- display module；800- voice cue module；900- status indicator lamp.
Specific embodiment
Currently, being both provided with lens slip cover before the camera lens of many projectors, when projector shuts down, slip lid is covered by sliding
Camera lens is isolated from the outside by camera lens, avoids camera lens contamination dust or scuffing；When projector is switched on, slip lid makes camera lens by sliding
Expose, so that camera lens can project image to outside.If slip lid is stuck because there was a mechanical failure in shutdown or booting,
The case where camera lens loses protection or cannot proceed normally projection will be will cause；Or slip lid is slided because there was a mechanical failure
Range has exceeded normal sliding scale, it will slip lid or peripheral element is caused to damage because of scraping.In short, needing to slip lid
Position is detected, and with the position that should be at when judging whether slip lid slides into shutdown or booting, judges that slip lid is in other words
No there was a mechanical failure (because the mechanical breakdown of slip lid necessarily causes slip lid that can not slide into correct position).
Fig. 1 shows the schematic diagram of slip lid position detection structure in the prior art.Referring to Fig.1, the side of slip lid 100 is set
Conductive sheet 200 made of metal material are equipped with, for the normal sliding scale of slip lid 100 with being illustrated in phantom, this normally slides model
Position when position and projector when the both ends enclosed are projector shutdown respectively where slip lid 100 are switched on where slip lid 100,
It is illustrated to simplify, is referred to as shut down position and the position that is switched on.It is correspondingly arranged on switch K1 at shutdown position, switch K1's
First end connects high level, is 3.3V, the GPIO1 pin of the second end connection processor 300 of switch K1 in Fig. 1.It is being switched on
Switch K2 is correspondingly arranged at position, it is 3.3V, the second end of switch K2 in Fig. 1 that the first end of switch K2, which connects high level,
Connect the GPIO2 pin of processor 300.When projector shuts down, slip lid 100 slides into shutdown position, 200 connection switch of conductive sheet
The both ends of K1, switch K1 conducting, to be high level on GPIO1 pin, Simultaneous Switching K2 is disconnected, and GPIO2 pin passes through resistance
R2 ground connection, therefore be low level on GPIO2 pin.When projector is switched on, slip lid 100 slides into booting position, and conductive sheet 200 connects
The both ends of switch K2, switch K2 conducting are connect, to be high level on GPIO2 pin, Simultaneous Switching K1 is disconnected, and GPIO1 pin is logical
Resistance R1 ground connection is crossed, therefore is low level on GPIO1 pin.If slip lid 100 is stuck in booting position because there was a mechanical failure
Between shutdown position, switch K1 is disconnected with switch K2, is low level on GPIO1 pin and GPIO2 pin.It needs to refer to
Out, although when slip lid 100 normally slides, equally meeting on GPIO1 pin and GPIO2 pin is low level, generally not
Such situation is discussed, it is without paying special attention to, i.e., general only to consider to slide because the normal sliding of slip lid 100 is a kind of short term state
The testing result of lid 100 under static state.
According to set forth above, existing slip lid position detection structure is only able to detect three kinds of feelings of the position of slip lid 100
Condition, as shown in table 1:
| The position of slip lid | GPIO1 | GPIO2 |
| Shutdown position | High level | Low level |
| Be switched on position | Low level | High level |
| It is switched between position and shutdown position | Low level | Low level |
Table 1
That is for the detection of the mechanical breakdown of slip lid 100, the prior art is only able to detect that slip lid 100 is stuck to be opened
Seat in the plane is set and shuts down such case between position, then can not for slip lid 100 beyond such case of normal sliding scale
It is detected.
Inventor thinks that the defect of the prior art is derived from and can not carry out accurately to the position of slip lid 100 through studying for a long period of time
Detection detects the level on GPIO1 pin and GPIO2 pin in the prior art, and by the combination of low and high level to cunning
The position of lid 100 is described, it is clear that, the combination of the low and high level on pin is very limited, therefore this is retouched
State it is necessarily inaccurate since the position of slip lid 100 can not accurately be described, naturally also cannot accurate judgement slip lid 100 be
No movement is in place, if the problems such as there was a mechanical failure.The utility model embodiment provides a kind of slip lid position detecting device, leads to
It crosses and swept resistance is set wherein, realize the accurate detection to the position of slip lid 100.
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used for area
Divide description, is not understood to indicate or imply relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Other feature and advantage of the utility model will illustrate in subsequent specification, also, partly from specification
It becomes apparent, or is understood and implementing the utility model embodiment.The purpose of this utility model and other advantages can
It is achieved and obtained by structure specifically indicated in the written description, claims, and drawings.
First embodiment
Fig. 2 shows the structural schematic diagrams for the slip lid position detecting device 10 that the utility model first embodiment provides.It is sliding
For lid position detecting device 10 for detecting position of the slip lid 100 relative to covered component, slip lid 100 designated herein refers to energy
Covered component is enough covered in by the sliding of its own, or exposes a kind of structure of covered component, specific shape
Shape, size are not construed as limiting.Covered component designated herein can be camera lens, for example, the camera lens of projector, video camera camera lens,
The camera lens of the camera lens of camera, the camera lens of mobile phone or other electronic equipments.Also, covered component can also be except camera lens it
Outer component, such as the detection probe of detection device etc..Position of the slip lid 100 relative to covered component, when being set forth below,
In the case where that will not obscure, it is generally referred to as the position of slip lid 100.
Referring to Fig. 2, slip lid position detecting device 10 includes swept resistance 400 and detection control module 500.Wherein, sliding
First the first level of termination of dynamic resistance 400, the second termination of swept resistance 400 is different from the second electrical level of the first level, sliding
The tap 410 of dynamic resistance 400 is fixedly connected with slip lid 100 and connect with detection control module 500, the normal sliding of slip lid 100
Range is with being illustrated in phantom.The specific value of first level and second electrical level is not construed as limiting, as long as ensuring that the two is different
It can be with as a kind of relatively common embodiment, the first termination power of swept resistance 400, i.e. high level, such as Fig. 2
In 3.3V, the second end ground connection of swept resistance 400, i.e. low level, it is believed that be 0V.Slip lid 100 drives tap when sliding
410 on swept resistance 400 synchronous slide, when tap 410 is in the different location of swept resistance 400, tap 410 and sliding electricity
The resistance value between resistance value and tap 410 and the second end of swept resistance 400 between the first end of resistance 400 correspondingly becomes
Change, therefore the level value in tap 410 also correspondingly changes.Simultaneously as tap 410 is moved synchronously with slip lid 100, therefore take out
First 410 position is uniquely corresponding with the position of 100 phase of slip lid, thus the position of level value and slip lid 100 in tap 410
It is also unique corresponding, and then detects control module 500 and detect the electric signal in tap 410 first and obtain the electricity of the electric signal
Level values, then according to the corresponding relationship of the level value and the position of slip lid 100, it will be able to determine the position of slip lid 100, it is clear that
Level value in tap 410 is consecutive variations, therefore detection control module 500 can determine the exact position of slip lid 100.
For the level value convenient for handling electric signal, the electric signal that usually will test in detection control module 500 is carried out
Analog-to-digital conversion, to obtain the level value after its quantization.In the utility model first embodiment, detection control module 500 is arranged
There is the analog-to-digital conversion port 510 connecting with tap 410, detection control module 500 obtains tap by analog-to-digital conversion port 510
Electric signal on 410 simultaneously completes above-mentioned analog-digital conversion function.It may be noted that the consecutive variations of level value above-mentioned, for
For level value after quantization, refer to the consecutive variations under quantified precision, while the position precision of slip lid 100 is also smart with quantization
It spends corresponding, can determine the quantified precision of level value according to actual needs.Detecting control module 500 can be using with signal
Processing capacity IC chip realize.Such as can for central processing unit (CPU), microcontroller (MCU), at digital signal
It manages device (DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, divide
Vertical door or transistor logic, discrete hardware components etc..
In a kind of implementation of the utility model first embodiment, detection control module 500 is public using Texas Instrument
The microcontroller chip for taking charge of the model MSP430FR2633 or MSP430FR2533 of production is realized, by taking MSP430FR2633 as an example
(MSP430FR2533 and its usage are essentially identical), which has analog-digital conversion function, any one in A0-A7 pin
A pin can be used as the input of analog signal, and the quantified precision of device analog-to-digital conversion is up to 10bit.A0-A7 can be drawn
Any one pin in foot is connected to the tap 410 of swept resistance 400, and the analog electrical signal in tap 410 is defeated as its
Enter, the level value after the analog-to-digital conversion inside MSP430FR2633 is obtained with quantization.Here, A0-A7 pin is
The analog-to-digital conversion port 510 mentioned before.
Detection control module 500 obtain slip lid 100 position can be used for judging slip lid 100 in sliding process whether
There was a mechanical failure.It is illustrated, but does not indicate covered in case where masking material is the camera lens of projector below
Object can only be limited to the camera lens of projector.To illustrate aspect, with continued reference to Fig. 2, the first level takes 3.3V, and second electrical level takes 0V,
Definition mode in referring to Fig.1, the both ends of the normal sliding scale of slip lid 100 are respectively shut down position and booting position, it is clear that
, when (i.e. tap 410 is slided to the first end of swept resistance 400) is slided in one end where slip lid 100 to shutdown position, tap
Level value on 410 increases, and maximum is not more than 3.3V.Slip lid 100 to booting position where one end sliding (i.e. tap 410 to
The second end of swept resistance 400 is slided) when, the level value in tap 410 reduces, and minimum is not less than 0V.The state of slip lid 100,
The position of slip lid 100 and the level value in tap 410 can have the corresponding relationship in table 2:
| The state of slip lid | The position of slip lid | Level value in tap |
| Normal shutdown | Shutdown position | 2.5V-2.9V |
| Normal boot-strap | Be switched on position | 0.4V-0.8V |
| It is stuck during switching on and shutting down | It is switched between position and shutdown position | 0.8V-2.5V |
| It is stuck more than shutdown position | Beyond shutdown position | > 2.9V |
| It is stuck more than booting position | Beyond booting position | < 0.4V |
Table 2
Similar with Fig. 1, the state of slip lid 100 here refers to state of the slip lid 100 when static, and slip lid 100 is sliding
When state belong to short term state, do not consider generally.Referring to table 2, control module 500 is detected according to the level in tap 410
Section where value can determine the position section where slip lid 100, and the position section where slip lid 100 can be further
Determine whether slip lid 100 breaks down.If that there was a mechanical failure is stuck for slip lid 100, according to the position section where slip lid 100,
Further failure can also be described, such as slip lid 100 is stuck in shutdown position and booting position during switching on and shutting down
Between, slip lid 100 slides into beyond shutdown position and stuck and slip lid 100 slides into beyond booting position and stuck.If sliding
There was a mechanical failure for lid 100, then projector normal switch machine, without carrying out specially treated.In some embodiments, if
Projector is not concerned with the specific location of slip lid 100, only focus on slip lid 100 whether slide in place (sliding i.e. slip lid 100 is in place
Shutdown position or booting position), detection control module 500 can also be directly according to the level value and cunning in the tap 410 in table 2
The corresponding relationship of the state of lid 100 is directly judged.Obvious, the state of the slip lid 100 in table 2 can also be according to practical need
It asks and is expanded, shown in table 2 is only the situation of several typical cases.Corresponding relationship in table 2 can initially pass through artificial observation
Debugging determines, can be solidificated in as program instruction thereafter in detection control module 500, certainly by detection control module 500
Row judges slip lid 100, and whether there was a mechanical failure.In short, the slip lid position detection structure in compared with the existing technology, this is practical
The case where slip lid position detecting device 10 that novel first embodiment provides exceeds normal sliding scale for slip lid 100 also can
Enough normal detections, detection effect are promoted obviously compared with the existing technology.The reason of realizing this effect is that slip lid position is examined
The exact position of slip lid 100 can be obtained by surveying device 10, can obtain the tap of the exact position of characterization slip lid 100 in other words
Level value on 410.
It may also be noted that above example is only slip lid position detecting device provided by the embodiment of the utility model
A kind of 10 specific application scenarios, the numerical value being directed to, range and state are only exemplary, and in the application
It is just significant under scene, it is not construed as the limitation to scope of protection of the utility model.
After detection control module 500 determines the position of slip lid 100, the position that can use slip lid 100 judges slip lid 100
Mechanical breakdown, but be not limited to be used as this purposes, be illustrated below with reference to specific embodiment.Fig. 3 shows this
The functional block diagram for the slip lid position detecting device 10 that utility model first embodiment provides.Referring to Fig. 3, in the utility model the
In a kind of embodiment of one embodiment, slip lid position detecting device 10 can also include motor 600, motor 600 respectively with inspection
It surveys control module 500 and slip lid 100 connects, detection control module 500 can control motor 600 and slip lid 100 is driven to slide, example
Such as projector, the sliding behavior of slip lid 100 is to manually control realization by user when the projector switching on and shutting down of part,
Part projector is then that driving slip lid 100 slides into shutdown position or booting position, slip lid position automatically by setting motor 600
Setting detection device 10 can apply under both implementations.But for the former, slip lid position detecting device 10 is only capable of examining
The mechanical breakdown of slip lid 100 is surveyed, and for the latter, slip lid position detecting device 10 can also be according to the slip lid 100 determined
Position controls motor 600, still by taking the corresponding relationship shown in table 2 as an example: when detection control module 500 determines slip lid
100 when being closely located to shutdown position (or detecting that level value in tap 410 increases and when close to 2.9V), controls motor
600 slow down, and avoid the sliding of slip lid 100 beyond shutdown position；When detection control module 500 determines being closely located to for slip lid 100
Be switched on position when (or detecting that level value in tap 410 reduces and when close to 0.4V), control motor 600 slows down, and avoids sliding
The sliding of lid 100 is beyond booting position；When detecting control module 500 and determining the position of slip lid 100 beyond shutdown position (or inspection
When measuring level value in tap 410 and being greater than 2.9V), control motor 600 inverts, make slip lid 100 to the sliding of shutdown position until
It returns in normal sliding scale；When detecting control module 500 and determining the position of slip lid 100 beyond booting position (or detection
When level value on to tap 410 is less than 0.4V), control motor 600 inverts, and makes slip lid 100 to the sliding of booting position until returning
Into normal sliding scale.To which the strategy of above-mentioned control motor 600 can avoid as far as possible slip lid 100 from sliding into normal sliding
It except range, prevents from that slip lid 100 or peripheral element is caused to damage because of scraping, or has slid into normal cunning in slip lid 100
When except dynamic range, control motor 600 in time and take corrective action, avoid slip lid 100 thoroughly it is stuck normal sliding scale it
Outside.Obvious, the strategy of above-mentioned control motor 600 is merely illustrative, control mode of the detection control module 500 for motor 600
It is not limited to above-mentioned control strategy.In practice, detection control module 500 controls motor 600 by motor driver, electricity
Machine driver can based on Texas Instruments produce model DRV8833 or DRV8834 motor drive ic realize, but
It is not limited to such implementation.
With continued reference to Fig. 3, slip lid position detecting device 10 can also include display module 700, voice cue module 800 with
And one of status indicator lamp 900 or multiple functions module.Wherein, display module 700 is connect with detection control module 500,
When detecting control module 500 and detecting slip lid 100 there was a mechanical failure, fault message can be sent to display module 700
It has been shown that, so as to user's timely learning and take appropriate measures.Certainly, display module 700 can also show other information, such as
The location information etc. of slip lid 100.Display module 700 can use, but be not limited to realize using liquid crystal display.Voice cue module
800 connects with detection control module 500, can general when detecting control module 500 and detecting slip lid 100 there was a mechanical failure
Fault message is sent to the broadcasting of voice cue module 800 in the form of voice signal, so as to user's timely learning and take corresponding
Measure.Certainly, voice cue module 800 can also play other information, such as the location information of slip lid 100 etc..Voice mentions
Show that module 800 can use, but is not limited to realize using loudspeaker.Status indicator lamp 900 is connect with detection control module 500,
Its quantity can be one or more, when detecting control module 500 and detecting slip lid 100 there was a mechanical failure, can pass through
The physical parameters such as switch, color, the brightness of state of a control indicator light 900 make status indicator lamp 900 or status indicator lamp 900
Combination shows different states, and the meaning of these prespecified state representations, so that the machine of user's timely learning slip lid 100
Tool failure simultaneously takes appropriate measures.Certainly, status indicator lamp 900 also can indicate that other states, such as slip lid 100 are normally slided
State when dynamic.Status indicator lamp 900 can use, but be not limited to realize using LED light.
In conclusion the utility model first embodiment provide slip lid position detecting device 10, by by slip lid 100 with
The tap 410 of swept resistance 400 connects, so that the position of level value and slip lid 100 in the tap 410 of swept resistance 400 has
There is unique corresponding relationship.Slip lid 100 can be directly determined out to detect after control module 500 obtains the level value
Position.Further, on this basis, the position that detection control module 500 is also based on slip lid 100 judges slip lid 100
Whether there was a mechanical failure.In some embodiments, slip lid 100 can be driven by motor 600, and detect control module
500 can control motor 600 according to the position of slip lid 100, avoid as far as possible slip lid 100 slide into normal sliding scale it
Outside.In addition, detecting control module 500 in some embodiments after the mechanical breakdown for detecting slip lid 100, can also leading to
It crosses display module 700, voice cue module 800 or status indicator lamp 900 to send a warning message, by the unusual condition of slip lid 100
Notify user.
Second embodiment
Fig. 4 shows the functional block diagram of the slip lid position detecting device 10 of the utility model second embodiment offer.Ginseng
According to Fig. 4, in a second embodiment, detection control module 500 can be by AD conversion unit 520 and control unit 530 two
Discrete component is constituted.Wherein, AD conversion unit 520 respectively with the tap 410 of swept resistance 400 and control unit 530
Connection, AD conversion unit 520 obtain the electric signal in tap 410 and carry out analog-to-digital conversion to it, after obtaining its quantization
The level value is sent to control unit 530 by level value, AD conversion unit 520, and control unit 530 is true according to level value is obtained
Determine the position of slip lid 100, control unit 530 may be implemented the detection control module 500 in first embodiment except analog-to-digital conversion
Other function in addition specifically can be not repeated to illustrate herein with reference to the description in first embodiment.In certain embodiments
In, slip lid position detecting device 10 can also include that motor 600, display module 700, voice cue module 800 and state refer to
Show the functional modules such as lamp 900, these functional modules are connect with control unit 530.
3rd embodiment
The utility model 3rd embodiment provides a kind of projector, including projector main body and slip lid position detecting device
10.Wherein, it is provided with camera lens on projector main body, is provided with slip lid 100 in front of camera lens, slip lid position detecting device 10 is mounted on
On projector main body, what slip lid position detecting device 10 can be provided using the utility model the first embodiment or the second embodiment
Slip lid position detecting device 10, the detection control module 500 of slip lid position detecting device 10 can be to detect slip lid
The component of 100 position directly can also realize its function to save cost by the controller of projector.First embodiment or
The functional modules such as motor 600, display module 700, voice cue module 800, the status indicator lamp 900 mentioned in two embodiments are equal
It may be mounted on projector main body.The projector is able to detect position of the slip lid 100 relative to camera lens, and can be basic herein
The judgement of the upper mechanical breakdown for realizing slip lid 100, and notifies user to handle in time when confirming failure, avoid projector into
The damage of one step.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of slip lid position detecting device, for detecting position of the slip lid relative to covered component, the slip lid can lead to
Sliding is crossed to cover the covered component or expose the covered component, which is characterized in that described device includes:
Swept resistance, first the first level of termination of the swept resistance, the second termination of the swept resistance is different from described
The second electrical level of first level, the tap of the swept resistance are fixedly connected with the slip lid, and the slip lid drives institute when sliding
It states tap to slide on the swept resistance, the level value in the tap and the slip lid are relative to the covered component
Position is corresponding；
Control module is detected, the detection control module is connect with the tap, and the detection control module is able to detect acquisition
Position of the level value with the determination slip lid relative to the covered component.
2. slip lid position detecting device according to claim 1, which is characterized in that the detection control module is provided with mould
Number conversion port, the analog-to-digital conversion port are connect with the tap, and the detection control module passes through the analog-to-digital conversion end
Mouth obtains the electric signal in the tap and converts the level value for the electric signal.
3. slip lid position detecting device according to claim 1, which is characterized in that the detection control module includes:
AD conversion unit, the AD conversion unit are connect with the tap, and the AD conversion unit obtains the tap
On electric signal and convert the level value for the electric signal；
Control unit is connect with the AD conversion unit, and described control unit obtains the electricity from the AD conversion unit
Level values.
4. slip lid position detecting device according to claim 1, which is characterized in that the slip lid position detecting device also wraps
It includes:
Motor is connect with the detection control module and the slip lid respectively, and the detection control module controls the motor
The slip lid is driven to slide.
5. slip lid position detecting device described in any claim in -4 according to claim 1, which is characterized in that the slip lid position
Set detection device further include:
Display module is connect with the detection control module.
6. slip lid position detecting device described in any claim in -4 according to claim 1, which is characterized in that the slip lid position
Set detection device further include:
Voice cue module is connect with the detection control module.
7. slip lid position detecting device described in any claim in -4 according to claim 1, which is characterized in that the slip lid position
Set detection device further include:
Status indicator lamp is connect with the detection control module.
8. slip lid position detecting device described in any claim in -4 according to claim 1, which is characterized in that the sliding electricity
First termination power of resistance, the second end ground connection of the swept resistance.
9. slip lid position detecting device according to claim 8, which is characterized in that the covered component is camera lens.
10. a kind of projector characterized by comprising
Projector main body is provided with camera lens on the projector main body, is provided with slip lid in front of the camera lens；
Slip lid position detecting device as described in claim any in claim 1-9, the slip lid position detecting device are mounted on
On the projector main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820787671.0U CN208285450U (en) | 2018-05-24 | 2018-05-24 | Slip lid position detecting device and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820787671.0U CN208285450U (en) | 2018-05-24 | 2018-05-24 | Slip lid position detecting device and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208285450U true CN208285450U (en) | 2018-12-25 |
Family
ID=64704878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820787671.0U Expired - Fee Related CN208285450U (en) | 2018-05-24 | 2018-05-24 | Slip lid position detecting device and projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208285450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010555A (en) * | 2019-12-25 | 2020-04-14 | 成都极米科技股份有限公司 | Projector and projector switch control method |
-
2018
- 2018-05-24 CN CN201820787671.0U patent/CN208285450U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010555A (en) * | 2019-12-25 | 2020-04-14 | 成都极米科技股份有限公司 | Projector and projector switch control method |
| CN111010555B (en) * | 2019-12-25 | 2021-05-28 | 成都极米科技股份有限公司 | Projector and projector switch control method |
| US11803111B2 (en) | 2019-12-25 | 2023-10-31 | Chengdu Xgimi Technology Co Ltd | Projector and method for controlling a projector to power on or off |
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Granted publication date: 20181225 |