CN208836323U - Multimedia information management platform - Google Patents
Multimedia information management platform Download PDFInfo
- Publication number
- CN208836323U CN208836323U CN201821607578.3U CN201821607578U CN208836323U CN 208836323 U CN208836323 U CN 208836323U CN 201821607578 U CN201821607578 U CN 201821607578U CN 208836323 U CN208836323 U CN 208836323U
- Authority
- CN
- China
- Prior art keywords
- driving motor
- pressure
- signal
- projector
- information management
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Projection Apparatus (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The utility model relates to multimedia information management platforms, are related to multimedia technical field comprising projector curtain and the driving motor of driving projector curtain lifting, further include conference table, pressure sensor and motor control module；The pressure sensor is set to the equipment on conference table and for incuding connection projector with output pressure inductive signal；The motor control module is coupled to pressure sensor and receives pressure sensitive signal to control driving motor driving projector curtain lifting.The utility model has the advantages that not needing remote controler is just able to achieve projector curtain automatic lifting.
Description
Technical field
The utility model relates to multimedia technical fields, more particularly, to multimedia information management platform.
Background technique
With the continuous development of science and technology, in exhibition, general company or unit, common roundtable conference is no longer satisfied
Job requirement.It with the universal of the multimedia technology centered on computer and improves, multimedia system constantly penetrates into
In office meeting.
In office meeting, the use of projector is very universal, and projector is generally equipped with remote controler
To control the lifting of projecting apparatus screen.
But if remote controler lose, will lead to projecting apparatus screen and be unable to complete lifting, thus influence meeting into
Journey.
Utility model content
The purpose of the utility model is to provide a kind of multimedia information management platforms, are just able to achieve with remote controler is not needed
The advantages of projector curtain automatic lifting.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of multimedia information management platform, the driving electricity including projector curtain and driving projector curtain lifting
Machine further includes conference table, pressure sensor and motor control module；
The pressure sensor is set to the pressure of the equipment on conference table and for incuding connection projector with output pressure
Inductive signal；
The motor control module is coupled to pressure sensor and receives pressure sensitive signal to control driving motor driving
Projector curtain lifting.
By using above-mentioned technical proposal, when meeting starts, the equipment for connecting projector is placed on and is mounted on conference table
On pressure sensor on, when pressure sensor senses equipment to its pressure, the pressure sensitive signal of output high level is extremely
Motor control module, and then make motor control module control projector curtain lifting, the utility model only needs to project connection
The equipment of instrument is placed on the automatic lifting that projector curtain is just able to achieve on conference table, to not influenced by remote controler.
The utility model is further arranged to: further including comparison module, the comparison module is occasionally coupled to pressure sensor
Between motor control module, the comparison module is preset with pressure reference value, and the comparison module receives pressure sensitive signal
And by pressure sensitive signal and the pressure reference value signal comparator of pressure reference value to export comparison signal to motor control mould
Block.
By using above-mentioned technical proposal, since the equipment of connection projector is usually that the weight such as laptop are bigger
Equipment, only when the pressure that pressure sensor is subject to is greater than the preset a reference value of comparison module, projector curtain can just be held
Begin lifting, and then avoided other articles from making pressure sensor there is a situation where malfunction.
The utility model is further arranged to: the motor control module includes rotating forward control unit and reversion control list
Member；
The rotating forward control unit control driving motor rotates forward so that projector curtain declines；
The reversion control unit control driving motor inverts so that projector curtain rises.
Control is rotated forward when the equipment for connecting projector is placed on pressure sensor by using above-mentioned technical proposal
Unit just controls driving motor and rotates forward so that projector curtain declines；It is taken from pressure sensor when by the equipment for connecting projector
When walking, reversion control unit control driving motor is inverted so that projector curtain rises.
The utility model is further arranged to: further including limiting device, the limiting device exists for limiting driving motor
Projector curtain is fully opened or is continued to rotate after closing.
By using above-mentioned technical proposal, after projector curtain, which drops to, to be fully opened, limiting device just makes driving electricity
Machine stops operating；After projector curtain, which rises to, to be completely closed, limiting device equally makes driving motor stop operating.
The utility model is further arranged to: the limiting device include Hall sensor, upper magnetic part, magnetic part,
Rotate forward position-limiting unit and reversion position-limiting unit；
The upper magnetic part is mounted on the upper end of wall；
The magnetic part is mounted on the lower end of wall；
The Hall sensor is mounted on the lower end of projector curtain to incude upper magnetic part or magnetic part and output limit
Position signal；
The rotating forward position-limiting unit is coupled to Hall sensor and receives limit signal to be stopped rotating forward to limit driving motor；
The reversion position-limiting unit, which is coupled to Hall sensor and receives limit signal, stops reversion to limit driving motor；
When the Hall sensor senses magnetic part, the driving motor stops rotating forward；
When the Hall sensor senses upper magnetic part, the driving motor stops reversion.
By using above-mentioned technical proposal, when driving motor just transfers to decline projector curtain, Hall sensor by
Gradually close to magnetic part, fully opened when projector drops to, Hall sensor then export-restriction signal to rotating forward position-limiting unit
So as to rotate forward the current supply circuit that position-limiting unit cutting driving motor rotates forward, and then driving motor is made to stop rotating forward；Work as driving motor
When inverting and increase projector curtain, Hall sensor moves closer to magnetic part, when projector rises to complete gathering, suddenly
Then export-restriction signal extremely inverts position-limiting unit so that reversion position-limiting unit cuts off the power supply time of driving motor reversion to your sensor
Road, and then driving motor is made to stop reversion.
The utility model is further arranged to: further including the upper switch set on the conference table, the switch is coupled in
In the current supply circuit of pressure sensor.
It, can be by switching pressure sensor when not needing using projector by using above-mentioned technical proposal
Current supply circuit cutting, and then pressure sensor is made not work, to avoid the malfunction of pressure sensor.
The utility model is further arranged to: the conference table is equipped with the region of the equipment for placing connection projector
Block, the pressure sensor are set on region unit.
By using above-mentioned technical proposal, the region unit for placing the equipment of connection projector is set, equipment is only put
It sets and just will start projector curtain in the region of region unit.
The utility model is further arranged to: the comparison module is voltage comparator, the reverse phase of the voltage comparator
Input terminal is preset with pressure reference value signal, and the non-inverting input terminal of the voltage comparator is coupled to pressure sensor to receive pressure
The output end of power inductive signal, the voltage comparator exports comparison signal.
By using above-mentioned technical proposal, when the pressure sensitive signal that voltage comparator non-inverting input terminal receives is greater than instead
When the pressure reference value signal of the preset pressure reference value of phase input terminal, ratio of the voltage comparator in its output end output high level
Compared with signal.
In conclusion the advantageous effects of the utility model are as follows:
The multimedia information management platform of the utility model only needs for the equipment for connecting projector to be placed on conference table
Just it is able to achieve the automatic lifting of projector curtain, to not influenced by remote controler.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model multimedia information management platform；
Fig. 2 is the structural schematic diagram of the utility model.
In figure, 1, projector curtain；2, driving motor；3, conference table；4, pressure sensor；5, motor control module；51,
Rotate forward control unit；52, control unit is inverted；6, comparison module；7, Hall sensor；8, upper magnetic part；9, magnetic part；
10, position-limiting unit is rotated forward；11, position-limiting unit is inverted；12, it switchs；13, region unit.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It as shown in Figures 1 and 2, is a kind of multimedia information management platform disclosed by the utility model, including projector curtain
Cloth 1 and for drive projector curtain 1 go up and down driving motor 2, in the present embodiment, 2 Russia of driving motor is preferably direct current
Motor.It further include conference table 3, conference table 3 is equipped with the region unit 13 of the equipment for placing connection projector, in the present embodiment
In, the equipment for connecting projector is specially laptop, pressure sensor 4 is equipped in the region of region unit 13, in meeting
The switch 12 for being coupled in and opening or closing pressure sensor 4 in 4 current supply circuit of pressure sensor is installed on view table 3, is opened
After 12 cracking pressure sensor 4 of switch, laptop is placed on region unit 13, pressure sensor 4 can sense pen
Remember this pressure and output pressure inductive signal.
Multimedia information management platform further includes being coupled to pressure sensor 4 and receiving pressure sensitive signal to compare to export
The comparison module 6 of signal is coupled to comparison module 6 and receives comparison signal to control 1 liter of projector curtain of the starting of driving motor 2
It the motor control module 5 of drop and is continued to rotate after projector curtain 1 is fully opened or closed for limiting driving motor 2
Limiting device.
The specific voltage comparator A1 of comparison module 6, the inverting input terminal of voltage comparator A1 are preset with pressure reference value, same
Phase input terminal is coupled to pressure sensor 4 to receive pressure sensitive signal, and voltage comparator A1 believes the pressure sensitive received
Number compared with the pressure reference value signal of pressure reference value afterwards output comparison signal to motor control module 5.
Motor control module 5 includes rotating forward for controlling driving motor 2 so that the rotating forward control list that projector curtain 1 declines
Member 51 and for control driving motor 2 invert so that projector curtain 1 rise reversion control unit 52.
Rotating forward control unit 51 includes NPN triode Q1 and relay KM1, and the base stage of NPN triode Q1 is coupled to electricity
Press the output end of comparator A1 with receive comparison signal, emitter ground connection, collector and relay KM1 coil be serially connected after
It is coupled to VCC power supply.The normally opened contact km1-1 of relay KM1 is coupled in the rotating forward current supply circuit of driving motor 2, normally closed touching
Point km1-2 is coupled in the current supply circuit of reversion control unit 52.
Inverting control unit 52 includes PNP triode Q2 and relay KM2, and the base stage of PNP triode Q2 is coupled to electricity
Press the output end of comparator A1 to receive comparison signal, emitter is coupled to the coil of VCC power supply, collector and relay KM2
It is grounded after being serially connected.The normally opened contact km2-1 of relay KM2 is coupled in the reversion current supply circuit of driving motor 2, normally closed touching
Point km2-2 is coupled in the current supply circuit for rotating forward control unit 51.
Limiting device includes the upper magnetic part 8 for being mounted on wall upper end, the magnetic part 9 for being mounted on wall lower end, installation
Upper magnetic part 8 or magnetic part 9 are incuded close to the side lower end of wall in projector curtain 1 and export the Hall of limit signal
Sensor 7 is coupled to Hall sensor 7 and receives limit signal so that driving motor 2 stops the rotating forward position-limiting unit 10 rotated forward
And it is coupled to Hall sensor 7 and receives limit signal so that driving motor 2 stops the reversion position-limiting unit 11 of reversion.
In the present embodiment, upper magnetic part 8 and magnetic part 9 are both preferably magnet.When Hall sensor 7 senses lower magnetic
Property part 9 when, driving motor 2 stop rotate forward；When Hall sensor 7 senses upper magnetic part 8, driving motor 2 stops reversion.
Rotating forward position-limiting unit 10 is PNP triode Q3, and PNP triode Q3 is coupled in the rotating forward current supply circuit of driving motor 2
In, the base stage of PNP triode Q3 is coupled to the output end of Hall sensor 7 to receive limit signal, collector pole is coupled to drive
One end of dynamic motor 2, emitter are coupled to VCC power supply.
Reversion position-limiting unit 11 is PNP triode Q4, and PNP triode Q4 is coupled in the reversion current supply circuit of driving motor 2
In, the base stage of PNP triode Q4 is coupled to the output end of Hall sensor 7 to receive limit signal, grounded collector, emitter
It is coupled to one end of driving motor 2.
The implementation principle of the present embodiment are as follows:
When meeting starts, closure switch 12, the current supply circuit of cut-in pressure sensor 4 makes pressure sensor 4 start work
Make.Then it is placed on the region unit 13 of conference table 3 after laptop being connected projector, so that on region unit 13
4 output pressure inductive signal of pressure sensor to voltage comparator A1, voltage comparator A1 non-inverting input terminal is received at this time
Pressure sensitive signal is greater than the pressure reference value signal of the preset pressure reference value of voltage comparator A1 inverting input terminal, so that electric
Press comparator A1 in the comparison signal of output end output high level to NPN triode Q1 and PNP triode Q2, so that NPN
Triode Q1 conducting.
The current supply circuit that relay KM1 coil is connected after NPN triode Q1 conducting, obtains the coil of relay KM1 electric, makes
Obtain the normally opened contact km1-1 closure of relay KM1, normally-closed contact km1-2 is disconnected.The normally opened contact km1-1 of relay KM1 is closed
Afterwards connect driving motor 2 rotating forward current supply circuit, make driving motor 2 start to rotate forward, so begin to decline projector curtain 1 and
It opens.
When projector curtain 1 fully opens, projector curtain 1 is mounted on close to the hall sensing of the side lower end of wall
Device 7 is corresponding with 9 position of magnetic part being mounted on wall, so that Hall sensor 7 exports the limit signal of high level extremely
PNP triode Q3 and PNP triode Q4, and then end PNP triode Q3 and PNP triode Q4.
After PNP triode Q3 cut-off, the rotating forward circuit of driving motor 2 has been cut off, so that driving motor 2 stops rotating forward, from
And projector curtain 1 is made to stop decline.
When after the conference is over, laptop being taken away from the region unit 13 on conference table 3, at this time pressure sensor 4
The pressure experienced is less than the pressure reference value of voltage comparator A1, so that voltage comparator A1 exports low level comparison
Signal is to NPN triode Q1 and PNP triode Q2, so that PNP triode Q2 is connected.
The current supply circuit that relay KM2 coil is connected after PNP triode Q2 conducting, obtains the coil of relay KM2 electric, makes
Obtain the normally opened contact km2-1 closure of relay KM2, normally-closed contact km2-2 is disconnected.The normally opened contact km2-1 of relay KM2 is closed
Afterwards connect driving motor 2 reversion current supply circuit, make driving motor 2 start to invert, so begin to ramp up projector curtain 1 and
It collapses.
When projector curtain 1 collapses completely, projector curtain 1 is mounted on close to the hall sensing of the side lower end of wall
Device 7 is corresponding with 8 position of upper magnetic part being mounted on wall, so that Hall sensor 7 exports the limit signal of high level extremely
PNP triode Q3 and PNP triode Q4, and then end PNP triode Q3 and PNP triode Q4.
After PNP triode Q4 cut-off, the reversion circuit of driving motor 2 has been cut off, so that driving motor 2 stops reversion, from
And projector curtain 1 is made to stop rising.
Switch 12 is finally disconnected again.
The multi-media signal management platform of the utility model is not needed using remote controler, only need to equipment by projector is connected
It is placed on the automatic lifting that projector curtain 1 is just able to achieve on conference table 3.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (8)
1. a kind of multimedia information management platform, the driving including projector curtain (1) and driving projector curtain (1) lifting
Motor (2), it is characterised in that: further include conference table (3), pressure sensor (4) and motor control module (5)；
The pressure sensor (4) is set to the pressure of the equipment on conference table (3) and for incuding connection projector to export pressure
Power inductive signal；
The motor control module (5) is coupled to pressure sensor (4) and receives pressure sensitive signal to control driving motor (2)
Drive projector curtain (1) lifting.
2. multimedia information management platform according to claim 1, it is characterised in that: it further include comparison module (6), it is described
Comparison module (6) is occasionally coupled between pressure sensor (4) and motor control module (5), and the comparison module (6) is preset with pressure
Power a reference value, the comparison module (6) receive pressure sensitive signal and by the pressure bases of pressure sensitive signal and pressure reference value
Quasi- value signal comparator is to export comparison signal to motor control module (5).
3. multimedia information management platform according to claim 2, it is characterised in that: motor control module (5) packet
It includes and rotates forward control unit (51) and reversion control unit (52)；
Rotating forward control unit (51) control driving motor (2) rotates forward so that projector curtain (1) declines；
Reversion control unit (52) control driving motor (2) inverts so that projector curtain (1) rises.
4. multimedia information management platform according to claim 3, it is characterised in that: it further include limiting device, the limit
Position device continues to rotate after projector curtain (1) is fully opened or closed for limiting driving motor (2).
5. multimedia information management platform according to claim 4, it is characterised in that: the limiting device includes that Hall passes
Sensor (7), magnetic part (9), rotates forward position-limiting unit (10) and reversion position-limiting unit (11) at upper magnetic part (8)；
The upper magnetic part (8) is mounted on the upper end of wall；
The magnetic part (9) is mounted on the lower end of wall；
The Hall sensor (7) is mounted on the lower end of projector curtain (1) to incude upper magnetic part (8) or magnetic part (9)
And output limit signal；
The rotating forward position-limiting unit (10) is coupled to Hall sensor (7) and receives limit signal to be stopped with limiting driving motor (2)
Only rotate forward；
The reversion position-limiting unit (11) is coupled to Hall sensor (7) and receives limit signal to be stopped with limiting driving motor (2)
Only invert；
When the Hall sensor (7) senses magnetic part (9), the driving motor (2) stops rotating forward；
When the Hall sensor (7) senses upper magnetic part (8), the driving motor (2) stops reversion.
6. multimedia information management platform according to claim 5, it is characterised in that: further include being set to the conference table
(3) upper switch (12), the switch (12) are coupled in the current supply circuit of pressure sensor (4).
7. multimedia information management platform according to claim 6, it is characterised in that: the conference table (3), which is equipped with, to be used
In the region unit (13) for the equipment for placing connection projector, the pressure sensor (4) is set on region unit (13).
8. multimedia information management platform according to claim 7, it is characterised in that: the comparison module (6) is voltage
Comparator, the inverting input terminal of the voltage comparator are preset with pressure reference value signal, the voltage comparator it is same mutually defeated
Enter end and be coupled to pressure sensor (4) to receive pressure sensitive signal, the output end of the voltage comparator exports comparison signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821607578.3U CN208836323U (en) | 2018-09-29 | 2018-09-29 | Multimedia information management platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821607578.3U CN208836323U (en) | 2018-09-29 | 2018-09-29 | Multimedia information management platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208836323U true CN208836323U (en) | 2019-05-07 |
Family
ID=66317896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821607578.3U Active CN208836323U (en) | 2018-09-29 | 2018-09-29 | Multimedia information management platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208836323U (en) |
-
2018
- 2018-09-29 CN CN201821607578.3U patent/CN208836323U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61139285A (en) | Starting of motor and control circuit therefor | |
| CN202261136U (en) | Motor and overcurrent detection circuit thereof | |
| CN208836323U (en) | Multimedia information management platform | |
| CN204631851U (en) | Cd-rom recorder | |
| CN102902264A (en) | Circuit and method for testing power window controller | |
| CN202548520U (en) | Device for intelligently controlling curtain automatically lifting of projection machine | |
| CN213800026U (en) | Scooter controller | |
| CN205644173U (en) | Controlling means through single live wire communication | |
| CN205792509U (en) | A kind of electronic type proximity switch | |
| CN104181831A (en) | Control system and control method of food smashing, stirring and mixing equipment | |
| CN205792503U (en) | A kind of electronic type door machine bistable switch | |
| CN207780762U (en) | A kind of electrical equipment and its crash protection circuit | |
| CN204177692U (en) | Automobile-used adhesive tape wearing layer abrasion wear test machine | |
| CN105811951A (en) | Electronic type gantry crane bistable-state switch | |
| CN208571964U (en) | A kind of electric chassis truck control device | |
| CN104701921B (en) | Electric car power supply control apparatus | |
| CN203072059U (en) | Television set with intelligent moisture-resistant function | |
| CN202522902U (en) | Wireless control box of greenhouse environment | |
| CN202649723U (en) | Novel self-start controller for use after power recovery of air conditioner | |
| CN205910573U (en) | Prevent slow -witted protective film piece and automatic board | |
| CN206673363U (en) | A kind of low-voltage distribution cabinet | |
| CN205805948U (en) | A kind of commons ceiling fan | |
| CN201490913U (en) | Multifunctional soft-touch power switch control circuit | |
| CN101895251A (en) | Pan/tilt motor current-limiting control circuit | |
| CN209581379U (en) | Electronic equipment and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |