CN207067746U - The three-dimensional display systems of multi-projector - Google Patents

Abstract

The utility model discloses a kind of three-dimensional display systems of multi-projector,Solve for only need positive wall curtain carry out projection displaying when,All projectors are started into the problem of causing waste of energy,Its drip irrigation device is,Including the horizontal triggers circuit for output level trigger signal,It is coupled to horizontal triggers circuit and the horizontal control circuitry opened and closed in response to horizontal trigger signal with controlled level projecting apparatus group,For exporting the vertical triggers circuit of vertical trigger signal,Be coupled to vertical triggers circuit and in response to vertical trigger signal with control vertical projection instrument group open and close vertical control circuit,The three-dimensional display systems of multi-projector of the present utility model,By different control circuits to be controlled to horizontal projector group and vertical projection instrument group,It can select to open different projecting apparatus groups according to the situation of reality,Substantially reduce the waste of electric energy.

Description

The three-dimensional display systems of multi-projector

Technical field

It the utility model is related to multimedia projection systems, the more particularly to three-dimensional display systems of multi-projector.

Background technology

Projector's display systems generally comprise projection screen and projecting apparatus, by projection screen hung on a wall, and start projecting apparatus And by corresponding pattern projection on projection screen, to reach the function of projection displaying, and disclosed in notification number CN204256362U The three-dimensional L shapes displaying screen of multi-projector, including for grandstand, some projectors and L-shaped screen that spectators take a seat, L-shaped screen Curtain is surrounded by the ground curtain below positive the wall curtain and grandstand on grandstand opposite to be formed；Duo Tai projectors are located at L-shaped screen upper end；Realizing will Extended in the curtain face of wall curtain.

But in use, if only only need to align wall curtain projected when, in existing optical projection system, be All projectors are kept to be in starting state, and the pattern projected to the projector of floor screen projection is monochromatic pattern, from And avoid having an impact with projection to the projection on positive wall curtain；In this process, for only needing positive wall curtain to carry out projection displaying In the case of, and all projectors are started to the waste for causing electric energy significantly, while also result in the service life drop of projector It is low；So with certain room for improvement.

Utility model content

The purpose of this utility model is to provide a kind of three-dimensional display systems of multi-projector, can according to reality situation and Control the keying of different projection units.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of three-dimensional display systems of multi-projector, including for projecting to the horizontal projector group of positive wall curtain and being used for Vertical projection instrument group on projection to ground curtain, in addition to be used for the horizontal triggers circuit of output level trigger signal, be coupled to water Flat triggers circuit and the horizontal control circuitry, perpendicular for exporting opened and closed in response to horizontal trigger signal with controlled level projecting apparatus group The vertical triggers circuit of straight trigger signal, it is coupled to vertical triggers circuit and in response to vertical trigger signal to control vertical projection The vertical control circuit that instrument group opens and closes.

Using such scheme, based on the situation of reality, can by different control circuits with to horizontal projector group with Vertical projection instrument group is controlled, i.e., when only needing to use horizontal projector group, then only needs by level triggering electricity Road and horizontal control circuitry start horizontal projector group, and are needing to use horizontal projector group and vertical projection During instrument group, then started by horizontal triggers circuit and horizontal control circuitry come controlled level projecting apparatus group, and by touching vertically Power Generation Road and vertical control circuit control the vertical projection instrument group to start；Realize according to the situation of reality different to select to open Projecting apparatus group, substantially reduce the waste of electric energy, at the same also avoid for a long time start and cause service life to reduce.

Preferably, the horizontal triggers circuit includes level control switch, be sequentially connected in series with level control switch the One divider resistance and the second divider resistance, the connecting node between first divider resistance and the second divider resistance sentence output Horizontal trigger signal；The vertical triggers circuit includes the 3rd point that vertical controlling switch and vertical controlling switch are sequentially connected in series Piezoresistance and the 4th divider resistance, it is vertical that the connecting node between the 3rd divider resistance and the 4th divider resistance sentences output Trigger signal.

Using such scheme, by the setting of two resistance with by the mechanical of level control switch or vertical controlling switch Keying is converted to electric signal and is transmitted, i.e., when closing level control switch or vertical controlling switch so that two partial pressure electricity Connecting node between resistance is to export corresponding high trigger signal, and level control switch or vertical controlling switch disconnect When so that connecting node between two divider resistances is with low level trigger signal corresponding to exporting, two mechanical actions Corresponding to two electric signals, the conversion between mechanical action and electric signal is realized.

Preferably, also include the grandstand taken a seat for spectators, on the grandstand and corresponding to being equipped with use at each seat It is in the personnel that detect whether and corresponds on seat and export personnel's detection means of personnel's detection signal, is coupled to personnel's detection Device is with the logic gates of reception staff's detection signal and output logic gate signal and in response to logic gate signal to control The cut-out circuit that horizontal projector group is closed with vertical projection instrument group；When any one personnel's detection means is not detected by someone During member, the cut-out circuit disconnects the current supply circuit of horizontal projector group and vertical projection instrument group.

Using such scheme, to whether thering are personnel to be detected in viewing on grandstand, if detecting nobody, directly Connected corresponding cut-out circuit to cut off horizontal projector group and vertical projection instrument group, to avoid the waste of electric energy.

Preferably, personnel's detection means is pyroelectric infrared sensor.

Using such scheme, radiation itself is not sent out any kind of, device power consumption very little, good concealment is cheap, resists Interference is strong；Detector is arranged on using highly for recommendation, to the toy on ground in investigative range, does not produce report typically It is alert；The anti-electromagnetic wave jamming performance of detector, which meets 4.6.1 requirements, general mobile phone electromagnetic interference in GB10408, will not cause mistake Report；Detector irradiates in the range of normal sensibility, by 3 meters of outer H4 Halogen lamp LEDs through glass, does not produce alarm；Infrared heat It is very big also with the direction of motion relation of people to the sensitivity of human body to release electric transducer, infrared ray pyroelectric sensor is for radially Mobile response is least sensitive, and for transverse direction（Direction i.e. vertical with radius）It is mobile then most sensitive, select at the scene Suitable installation site is to avoid infrared probe wrong report, try to achieve the particularly important ring of optimum detection sensitivity.

Preferably, it is serially connected with personnel's detection means after the level control switch and vertical controlling switch are parallel with one another On current supply circuit.

Using such scheme, only when horizontal projector group or vertical projection instrument group start, it can just start personnel Detection means, energy consumption is further reduced, while also avoid but beginning in no startup horizontal projector group or vertical projection instrument group Start personnel's detection means eventually without reaching any practical significance.

Preferably, the logic gates includes personnel's detection means is corresponded and be connected to personnel's detection means Output end NOT gate and be connected to NOT gate output end with door, it is described to be connected to cut-out circuit with door output end.

Using such scheme, simple logic gate component can complete a logic function, be easy to the design of subsequent conditioning circuit, So that circuit design is more simple, easily implement.

Preferably, the cut-out circuit is included in response to the control unit of logic gate signal and output control signal, response In control signal be delayed after set delay time and export the delay portion of time delayed signal and in response to time delayed signal with The drive division that controlled level projecting apparatus group is closed with vertical projection instrument group.

Using such scheme, by corresponding delay function, it can effectively ensure that projecting apparatus will not be sudden shut off, again Started suddenly, ensure be cut off in set delay time, only after a period of time has passed and determined Personnel can just start drive division to close projecting apparatus in the state of having been moved off；Effectively personnel are avoided to go and return and cause The problem of projecting apparatus constantly opens and closes.

Preferably, the delay portion is 555 delay circuits.

Using such scheme, the design of 555 delay circuits is simple, and easily realizes, facilitates designer to subsequent conditioning circuit Design, and cost is cheap, and later maintenance is simple.

Preferably, the cut-out circuit also includes being used to indicate the instruction unit in delay state.

Using such scheme, the information for whether being in delay state can be got, ensures user and manager's energy It is enough to be more apparent from situation, improve the security and reasonability used.

Preferably, the instruction unit is visual indicator.

Using such scheme, visual indicator allows staff to realize by light to prompt staff What is be more prone to gets corresponding information.

In summary, the utility model has the advantages that：By different control circuits with to horizontal projector Group is controlled with vertical projection instrument group, you can to select to open different projecting apparatus groups according to actual situation, is dropped significantly The waste of low electric energy.

Brief description of the drawings

Fig. 1 is the structural representation of the three-dimensional display systems of multi-projector；

Fig. 2 is the circuit theory diagrams of the three-dimensional display systems of multi-projector.

In figure：11st, grandstand；12nd, positive wall curtain；13rd, curtain；14th, horizontal projector group；15th, vertical projection instrument group；21st, water Flat triggers circuit；22nd, horizontal control circuitry；23rd, vertical triggers circuit；24th, vertical control circuit；25th, personnel's detection means； 26th, logic gates；27th, circuit is cut off；271st, control unit；272nd, delay portion；273rd, drive division；274th, instruction unit.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Embodiment：A kind of three-dimensional display systems of multi-projector, as shown in figs. 1 and 2, including the grandstand for supplying spectators to take a seat 11st, for projecting to the horizontal projector group 14 of positive wall curtain 12, for projecting to the vertical projection instrument group 15 on ground curtain 13, being used for The horizontal triggers circuit 21 of output level trigger signal, it is coupled to horizontal triggers circuit 21 and in response to horizontal trigger signal to control Horizontal control circuitry 22, the vertical triggers circuit 23 for exporting vertical trigger signal, the coupling of the keying of horizontal projector group 14 processed Be connected to vertical triggers circuit 23 and in response to vertical trigger signal with control vertical projection instrument group 15 open and close vertical control circuit 24。

Horizontal triggers circuit 21 includes level control switch K1, the first partial pressure being sequentially connected in series with level control switch K1 electricity Resistance R11 and the second divider resistance R12, the connecting node between the first divider resistance R11 and the second divider resistance R12 sentence output Horizontal trigger signal.

Horizontal control circuitry 22 includes the triode Q1 and relay KM1 of NPN type, and triode Q1 base stage is connected to At connecting node between one divider resistance R11 and the second divider resistance R12, triode Q1 grounded emitter, triode Q1 Colelctor electrode be connected to relay KM1 coil after be connected to power supply, on relay KM1 coil inverse parallel have fly-wheel diode D1, relay KM1 normally opened contact are connected to the current supply circuit of horizontal projector group 14.

Vertical triggers circuit 23 includes vertical controlling switch K2, the 3rd partial pressure being sequentially connected in series with vertical controlling switch K2 electricity R21 and the 4th divider resistance R22 is hindered, the connecting node between the 3rd divider resistance R21 and the 4th divider resistance R22 sentences output Vertical trigger signal.

Vertical control circuit 24 includes the triode Q2 and relay KM2 of NPN type, and triode Q2 base stage is connected to the At connecting node between one divider resistance R21 and the second divider resistance R22, triode Q2 grounded emitter, triode Q2 Colelctor electrode be connected to relay KM2 coil after be connected to power supply, on relay KM2 coil inverse parallel have fly-wheel diode D2, relay KM2 normally opened contact are connected to the current supply circuit of vertical projection instrument group 15.

On grandstand 11 and corresponding to being equipped with each seat for detecting whether there is personnel to be on corresponding seat and defeated Go out personnel's detection means 25 of personnel's detection signal, be coupled to personnel's detection means 25 with reception staff's detection signal and export patrol Collect the logic gates 26 of gate signal and in response to logic gate signal with controlled level projecting apparatus group 14 and vertical projection instrument group The 15 cut-out circuits 27 closed；When any one personnel's detection means 25 has been not detected by personnel, cut-out circuit 27 disconnects The current supply circuit of horizontal projector group 14 and vertical projection instrument group 15.

Personnel's detection means 25 is pyroelectric infrared sensor；And personnel's detection means 25 have it is multiple, on each seat Personnel's detection means 25 is correspondingly arranged, personnel are serially connected with after level control switch K1 and vertical controlling switch K2 is parallel with one another On the current supply circuit of detection means 25；As illustrated in Fig. 2 only by two personnel's detection means 25；Rpyroelectric infrared passes Sensor includes housing, optical filter, FET and pyroelectricity element, and housing is provided with through hole, and optical filter is connected in through hole In, FET and pyroelectricity element are located at the enclosure interior of pyroelectric infrared sensor, and sense outside by optical filter Heat radiation.The main function of optical filter is only to allow infrared ray (IR wavelength that human body send) of the wavelength at 10 μm or so By, and light, sunshine and other radiation are filtered, to suppress extraneous interference.Infrared induction source is generally by two series connection Or pyroelectricity element composition in parallel, the electrodes of the two pyroelectricity elements on the contrary, ambient background radiation to two pyroelectricities Element almost has identical effect, its caused pyroelectric effect is cancelled out each other, output signal is close to zero.Once someone In intrusion detection region, human infrared radiation is focused on by partial mirror, and is received by pyroelectricity element, because angle is different, The heat that two panels pyroelectricity element receives is different, and pyroelectricity energy is also different, it is impossible to is completely counterbalanced by, after processing circuit processes Output control signal.Pyroelectric effect is similar with piezo-electric effect, refers to cause plane of crystal electric charge due to the change of temperature Phenomenon.Pyroelectric infrared sensor is made up of ceramic oxide or piezolectric crystal unit, and electrode is made on two surfaces of element, When temperature has △ T change in the range of Sensor monitoring, pyroelectric effect can produce electric charge △ Q on two electrodes, i.e., two A faint voltage △ V are produced between electrode.Because its output impedance is high, there is a FET to carry out in the sensor Impedance converts.Electric charge △ Q caused by pyroelectric effect can by the ion in air with reference to and disappear, i.e., when environment temperature is steady When fixed constant, △ T=O, sensor is without output.Human body or the larger animal of volume have constant body temperature, typically at 37 degree, So the infrared ray of 10 μm or so of specific wavelength can be sent, when human body enters detection zone, because human body temperature and environment temperature have difference Not, 10 μm or so of infrared ray of human-body emitting by gathering infrared induction source after the enhancing of Fresnel lens optical filter, (release by heat Electric device) on, infrared induction source will lose charge balance when receiving human infrared radiation, outwards discharge electric charge, and then Produce △ T and by △ T circuit outputs to the periphery, subsequent conditioning circuit handle after testing after with regard to personnel's detection signal can be produced.

Logic gates 26 includes corresponding with personnel's detection means 25 and being connected to the output of personnel's detection means 25 The NOT gate at end and be connected to NOT gate output end with door, with the output end of door be connected to cut-out circuit 27；With the model of door And the quantity of NOT gate is selected according to the quantity of personnel's detection means 25.

Cutting off circuit 27 includes believing in response to the control unit 271 of logic gate signal and output control signal, in response to control Number to be delayed after set delay time and export the delay portion 272 of time delayed signal and in response to time delayed signal to control water The drive division 273 that flat projecting apparatus group 14 is closed with vertical projection instrument group 15.

Control unit 271 includes the triode Q3 and relay KM3 of NPN type, and triode Q3 base stage is connected to and door Output end, triode Q3 grounded emitter, triode Q3 colelctor electrode are connected to electricity after being connected to relay KM3 coil Source, on relay KM3 coil inverse parallel have sustained diode 3, relay KM3 normally opened contact is connected to delay portion 272 Current supply circuit.

Delay portion 272 is 555 delay circuits；The controlled end of 555 delay circuits is power end, therefore relay KM3's is normally opened Contact portion when relay KM3 normally opened contact closure, then provides 555 delay circuits electricity between power supply and 555 chips Can, after switching on power, because electric capacity C1 is charged, that is, electric current and potential difference be present, so as to ensure the second of 555 chips Pin and the 6th pin are in high level, now the 3rd pin output low level of 555 chips, as electric capacity Cl charges until having charged Into, do not recharged afterwards because electric capacity is fully charged, therefore electric current and current potential is not present, dc source is hindered by electric capacity C1 Every so that the current potential of the crus secunda of 555 chips and the 6th pin becomes low level, and the electric signal of output end output is overturn, i.e., The signal of output end output is changed into high level from low level, and is always maintained at down；Diode VD is for electric capacity after power cut-off What C2 discharged and set.

Drive division 273 includes the triode Q4 and relay KM4 of NPN type, and triode Q4 base stage is connected to delay portion 272 output end, triode Q4 grounded emitter, triode Q4 colelctor electrode connect after being connected to relay KM4 coil There is sustained diode 4 in inverse parallel on power supply, relay KM4 coil, relay KM4 normally-closed contact is connected to horizontal throwing The current supply circuit of shadow instrument group 14 and the current supply circuit of vertical projection instrument group 15, control the cut-out of two groups of projecting apparatus.

Cutting off circuit 27 also includes being used to indicate the instruction unit 274 in delay state；Instruction unit 274 is visual indicator And preferably use strobelight indicator；Strobelight indicator includes oscillator, triode Q5 and indicator lamp LED1, oscillator Controlled terminal be coupled to relay KM4 normally opened contact after connect power supply, the output end of oscillator is coupled to triode Q5 base Pole, and control triode Q5 break-make, triode Q5 colelctor electrode connect power supply after being connected to indicator lamp LED1, triode Q5's Grounded emitter, when relay KM4 coil obtains electric, control relay KM4 normally opened contact closure so that control oscillator Work, a light controling signal is exported, light controling signal is square wave, control triode Q5 alternating break-makes, to indicate Lamp LED1 discontinuity indicates, realizes the function of instruction.

The carrier of circuit above is circuit board, i.e., is configured some circuit components by circuit board, and lead to Cross wire to connect some electrical equipments, ensure the realization of whole function.

Specific work process is as follows：

According to the use environment of reality, by starting level control switch K1 so that horizontal triggers circuit 21 exports one The horizontal trigger signal of high level is turned on to triode Q1, triode Q1, relay KM1 coil obtain it is electric after, relay KM1's Normally opened contact is closed to start horizontal projector group 14；By starting vertical controlling switch K2 so that vertical triggers circuit 23 is defeated Go out the vertical trigger signal of a high level and turn on to triode Q2, triode Q2, relay KM2 coil obtain it is electric after, relay Device KM2 normally opened contact is closed to start vertical projection instrument group 15；For starting horizontal projector group 14 or starting vertical projection Instrument group 15 or both all starts, and can be operated according to actual conditions.

By start level control switch K1 and/or vertical controlling switch K2 with start all people person's detection means 25 with It is pointed to whether there are personnel to be detected on corresponding seat, and personnel's detection signal is exported into NOT gate, at NOT gate After reason, input to door；I.e. if personnel's detection means 25 is detected on seat after someone to export the personnel of high level Detection signal, after NOT gate is handled, input to personnel's detection signal with door is changed into low level signal, as long as so appointing One personnel's detection means 25 of meaning detects someone on seat, and two groups of projecting apparatus are closed all without the circuit of triggering following； Personnel are not all detected if all of personnel's detection means 25, then now each personnel's detection means 25 exports one Low level signal, after NOT gate is handled, input is changed into the signal of high level to personnel's detection signal with door, now base In the characteristic with door, export the signal of a high level with door and turn on to triode Q3, triode Q3, relay KM3 coil Must be electric, relay KM3 normally opened contact closes, start-up study portion 272, and delay portion 272 is defeated after set delay time Go out the time delayed signal of a high level and start to triode Q4, triode Q4 so that relay KM4 coil obtains electric, relay KM4 normally-closed contact disconnects, and realizes the function of delay cutoff.

Claims (10)

1. a kind of three-dimensional display systems of multi-projector, including for project to the horizontal projector group (14) of positive wall curtain (12) with And for projecting to the vertical projection instrument group (15) on ground curtain (13), it is characterized in that：Also include being used for output level trigger signal Horizontal triggers circuit (21), be coupled to horizontal triggers circuit (21) and in response to horizontal trigger signal with controlled level projecting apparatus Group (14) open and close horizontal control circuitry (22), the vertical triggers circuit (23) for exporting vertical trigger signal, be coupled to it is perpendicular Straight triggers circuit (23) and in response to vertical trigger signal to control the vertical control circuit that vertical projection instrument group (15) opens and closes (24)。

2. the three-dimensional display systems of multi-projector according to claim 1, it is characterized in that：The horizontal triggers circuit (21) The first divider resistance and the second divider resistance being sequentially connected in series including level control switch, with level control switch, described first Connecting node between divider resistance and the second divider resistance sentences output level trigger signal；The vertical triggers circuit (23) The 3rd divider resistance and the 4th divider resistance being sequentially connected in series including vertical controlling switch, with vertical controlling switch, the described 3rd Connecting node between divider resistance and the 4th divider resistance sentences the vertical trigger signal of output.

3. the three-dimensional display systems of multi-projector according to claim 2, it is characterized in that：Also include seeing for what spectators took a seat Platform (11), on the grandstand (11) and corresponding to being equipped with each seat for detecting whether there is personnel to be on corresponding seat And export personnel's detection means (25) of personnel's detection signal, be coupled to personnel's detection means (25) with reception staff's detection signal And the logic gates (26) of output logic gate signal and in response to logic gate signal with controlled level projecting apparatus group (14) with The cut-out circuit (27) that vertical projection instrument group (15) is closed；When any one personnel's detection means (25) has been not detected by personnel When, the cut-out circuit (27) disconnects the current supply circuit of horizontal projector group (14) and vertical projection instrument group (15).

4. the three-dimensional display systems of multi-projector according to claim 3, it is characterized in that：Personnel's detection means (25) For pyroelectric infrared sensor.

5. the three-dimensional display systems of multi-projector according to claim 3 or 4, it is characterized in that：The level control switch With vertical controlling switch it is parallel with one another after be serially connected with the current supply circuit of personnel's detection means (25).

6. the three-dimensional display systems of multi-projector according to claim 3, it is characterized in that：Logic gates (26) bag Include and corresponded with personnel's detection means (25) and be connected to the NOT gate of the output end of personnel's detection means (25) and be connected to The output end of NOT gate cuts off circuit (27) with door, described be connected to door output end.

7. the three-dimensional display systems of multi-projector according to claim 3, it is characterized in that：The cut-out circuit (27) includes In response to the control unit (271) of logic gate signal and output control signal, in response to control signal with the set delay that is delayed After time and export time delayed signal delay portion (272) and in response to time delayed signal with controlled level projecting apparatus group (14) with it is perpendicular The drive division (273) that straight projecting apparatus group (15) is closed.

8. the three-dimensional display systems of multi-projector according to claim 7, it is characterized in that：The delay portion (272) is 555 Delay circuit.

9. the three-dimensional display systems of multi-projector according to claim 7, it is characterized in that：The cut-out circuit (27) is also wrapped Include for indicating the instruction unit (274) in delay state.

10. the three-dimensional display systems of multi-projector according to claim 9, it is characterized in that：The instruction unit (274) is lamp Optical indicator.