CN101430846B - High-density digital water curtain display system - Google Patents

High-density digital water curtain display system Download PDF

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Publication number
CN101430846B
CN101430846B CN2008101560541A CN200810156054A CN101430846B CN 101430846 B CN101430846 B CN 101430846B CN 2008101560541 A CN2008101560541 A CN 2008101560541A CN 200810156054 A CN200810156054 A CN 200810156054A CN 101430846 B CN101430846 B CN 101430846B
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CN
China
Prior art keywords
groups
display
water
solenoid valve
solenoid valves
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CN2008101560541A
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Chinese (zh)
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CN101430846A (en
Inventor
房义军
顾建
王富良
陈寒松
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江苏大学
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Priority to CN2008101560541A priority Critical patent/CN101430846B/en
Publication of CN101430846A publication Critical patent/CN101430846A/en
Application granted granted Critical
Publication of CN101430846B publication Critical patent/CN101430846B/en

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Abstract

The invention relates to a high-density digital water curtain display system, aiming at overcoming the defects in the prior art and providing a digital water curtain display system with high resolution and better display effect. The technical proposal to achieve the purpose of the invention is as follows: the high-density digital water curtain display system includes a water supply device, a water dripping device and a control device, wherein, the water dripping device consists of two groups of electromagnetic valves which are oppositely arranged; the two groups of electromagnetic valves are interdigitated; and the distance between the water outlets of two adjacent electromagnetic valves in the two groups of the electromagnetic valves is equal.

Description

A kind of high-density digital water curtain display system

Technical field

The present invention relates to a kind of display system, particularly a kind of high-density digital water curtain display system that shows letter and image with water droplet.

Background technology

Existing digital water curtain display system comprises water supply installation, dripping device, wing flats and water recovery apparatus.Wherein dripping device has adopted 128 solenoid valves to install side by side, and each solenoid valve is provided with water dropping openings, and its viewing area can reach 3.5 * 5 meters, and the frequency and the locus that utilize the computer control water droplet to produce.It is following that existing digital water curtain display system exists shortcoming to have:

1. the density of water droplet is not high, so that the image that produces is clear inadequately;

2. control section is core with the computing machine, has improved system cost so greatly.

Summary of the invention

The objective of the invention is to overcome the defective of prior art, a kind of resolution height is provided, the better digital water curtain display system of display effect.

The technological invention scheme that realizes the object of the invention is: a kind of high-density digital water curtain display system, comprise water supply installation, dripping device and control device, described dripping device is made up of two groups of solenoid valves that are provided with in opposite directions, two groups of solenoid valve interdigitations, distance in two groups of solenoid valves between the water delivering orifice of adjacent two solenoid valves equates that two groups of solenoid valve water delivering orifices are arranged point-blank.

Above-mentioned two groups of solenoid valves certain distance that staggers between the water delivering orifice of the water delivering orifice that is meant second group of solenoid valve and first group of solenoid valve that is crisscross arranged, such as, 1/2nd solenoid valve width stagger.

The height of resolution has determined the effect that shows, solenoid valve adopts conventional spread, 40 classify 880mm as, and column pitch is 22mm, can only show simple patterns such as letter, the present invention has adopted two groups of solenoid valves, every group 40 are staggered to inserting, and form 80 row, and spacing is the water curtain of 11mm, make that resolution doubles under the wide constant situation of 880mm.

It is main control module and driver module two parts of core that described control device adopts with the single-chip microcomputer, and main control module sends to data presented the driver module that is cascaded in the mode of serial.For guaranteeing synchronism with delegation's water droplet, be provided with a synchronization output signal device in the main control module, be used to trigger driver module and open corresponding solenoid valve.In solenoid valve energising and the control of turn-off time, best energising and the scope of turn-off time are respectively 1.8~2.5ms and 3.8~5ms.

As a further improvement on the present invention, adopt the separate water supply unit of two covers in the water supply installation, corresponding respectively two groups of solenoid valves supply water, and guarantee stable output.

The invention has the beneficial effects as follows: because the restriction of solenoid valve self width, distance between the water delivering orifice of single solenoid valve can't reduce, water droplet is difficult to form abundant lively clear pattern and literal, the present invention takes two groups of solenoid valve dislocation to inserting the structure of installing, distance between the water delivering orifice of solenoid valve is reduced, make that at dripping device resolution improves under the constant situation of col width.

The control of water curtain can adopt programmable controller PLC, industrial computer to make the control core, also can adopt conduct control cores such as PC.Utilization PLC is fit to more small-sized and the comparatively simple water curtain system of moulding, be characterized in reliable, but need add man-machine interface, this has just improved system cost greatly, and the switching speed of PLC output be difficult to satisfy in the break-make needs of extensive (more than 64) solenoid valve.PC is fit to water curtain system large-scale and that moulding is complicated, but the total system volume is big, and the cost height.The present invention adopts single-chip microcomputer as core, and volume is little, and real-time is good, and cost is low, and the cost performance height has overcome the shortcoming that real-time is poor, the PC volume is big and both are expensive of PLC.

Digital water curtain as medium, must guarantee to have water endlessly with water.Further adopt two groups of water supply unit in the water supply installation of the present invention, two groups of solenoid valves of corresponding dripping device are guaranteed pressure of supply water and output respectively.

Description of drawings

Fig. 1 is the embodiment of the invention 1 a digital water curtain display system structured flowchart

Fig. 2 is a dripping device side view among Fig. 3 of the present invention

Fig. 3 is the embodiment of the invention 1 water supply installation and dripping device synoptic diagram

Fig. 4 is the embodiment of the invention 1 a control device structured flowchart

Fig. 5 is the embodiment of the invention 1 a control device main control module structural representation

Fig. 6 is the embodiment of the invention 1 a control device driver module structural representation

Embodiment

Be described further below in conjunction with embodiment.

Embodiment 1

As shown in figures 1 and 3, a kind of high-density digital water curtain display system 1, comprise water supply installation, dripping device 2 and control device, wherein control device comprises main control module and driver module, dripping device 2 comprises two groups of electromagnetic valve group 20, driver module and electromagnetic valve group are installed in the top of framework, to reduce wiring; Water supply installation comprises water tank 3, water inlet pipe 4, rising pipe 5, distributing pipe 6 and low noise submersible pump.Drop to the water in the water tank, flow to two groups of solenoid valves 7 by low noise submersible pump circulation, be used to produce water droplet, the water circulation use of whereabouts reaches the purpose of water saving.

As shown in Figures 2 and 3, two groups of electromagnetic valve group 20 are made up of 80 solenoid valves 21, every group 40, water delivering orifice 22 forms 80 row, two groups of solenoid valve 21 relative interdigitations, distance in two groups of solenoid valves between 21 adjacent two solenoid valve 22 water delivering orifices equates that the formation col width is 880mm, and spacing is the water curtain of 11mm.

In the present embodiment, 80 solenoid valves are separately fixed at screw on the DH15*39 aluminium section bar of two long 1.26m, install pad additional on the solenoid valve side at two ends, and utilize angle bar to be fixed, and make that the arrangement of all solenoid valves is tight and firm.Like this, the water droplet density of outflow is even, and the moulding of working it out is also just vivid, has more attractive force.Simultaneously, such installation, tool has an enormous advantage when changing water curtain area and scale, as increasing or reduce the quantity of solenoid valve, only need the screw on the angle bar on both sides is unclamped, the solenoid valve that inserts or remove respective number between the other pad of angle bar gets final product.

Control device is made up of main control module and driver module two parts of with the single-chip microcomputer being core in the present embodiment, its interconnected relationship as shown in Figure 4, main control module sends to 5 driver modules that are cascaded in the mode of serial with data presented, and each driver module drives 16 solenoid valves.For guaranteeing the synchronism with delegation's water droplet, main control module provides a synchronization output signal, triggers driver module and opens corresponding solenoid valve.In solenoid valve energising and the control of turn-off time, best energising and the scope of turn-off time are respectively 1.8~2.5ms and 3.8~5ms.

As shown in Figure 5, main control module adopts the STC89C516 single-chip microcomputer, RS232 interface wherein can provide hardware supported for system group network control in future, direct input demonstration and further extension system function, the LCD interface connects one 320 * 240 LCDs, P1.2/P1.3/P1.4 is connected to shift pulse input, data input and the synchronizing pulse input of driver module, 8255 PA port connects the user button input, to switch display mode.Driver module is based on 74HC595 and ULN2803 chip.Be provided with two groups of chip in each driver module, each drives 8 solenoid valves, and as shown in Figure 6,74HC595 converts serial data to parallel data on the one hand, after ULN2803 amplifies, be used to drive solenoid valve, provide data input signal for connecting next driver module on the other hand.

The groundwork process of digital water curtain is to convert character to be shown and figure to dot array data, leave in the single-chip microcomputer, during demonstration by the program sense data, parallel series sends to the 74HC595 chip, isolate and the action of Darlington transistor driving solenoid valve by photoelectricity, produce and form the water droplet sequence, and constitute literal and figure.The software of control device mainly comprises data-switching and Single Chip Microcomputer (SCM) program two parts.Data-switching adopts Zemo will need the literal that shows and figure to convert to and can be used in the digital water curtain data presented.Single Chip Microcomputer (SCM) program is mainly finished and is read dot array data and send to driver module.

Claims (7)

1. high-density digital water curtain display system, comprise water supply installation, dripping device and control device, it is characterized in that, described dripping device is made up of two groups of solenoid valves that are provided with in opposite directions, two groups of solenoid valve interdigitations, distance in two groups of solenoid valves between the water delivering orifice of adjacent two solenoid valves equates that two groups of solenoid valve water delivering orifices are arranged point-blank; Described control device comprises with the single-chip microcomputer being the main control module and the driver module of core, and main control module sends to data presented the driver module that is cascaded in the mode of serial; Adopt the separate water supply unit of two covers in the described water supply installation, be connected with two groups of solenoid valves respectively.
2. display system according to claim 1 is characterized in that, described dripping device is made up of two groups of 80 solenoid valves, and 40 every group, water delivering orifice forms 80 row, and col width is 880mm, and adjacent water delivering orifice spacing is 11mm.
3. display system according to claim 1 is characterized in that, described solenoid valve is separately fixed on two aluminium section bars with screw, installs pad additional on the solenoid valve side at two ends, and utilizes angle bar to be fixed.
4. display system according to claim 1 is characterized in that, is provided with a synchronization output signal device in the described main control module, is used to trigger driver module and opens corresponding solenoid valve.
5. display system according to claim 1 is characterized in that, described main control module adopts the STC89C516 single-chip microcomputer.
6. display system according to claim 1 is characterized in that, described driver module adopts 74HC595 and ULN2803 chip.
7. display system according to claim 1 is characterized in that, described solenoid valve energising and the scope of turn-off time are respectively 1.8~2.5ms and 3.8~5ms.
CN2008101560541A 2008-09-19 2008-09-19 High-density digital water curtain display system CN101430846B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008101560541A CN101430846B (en) 2008-09-19 2008-09-19 High-density digital water curtain display system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008101560541A CN101430846B (en) 2008-09-19 2008-09-19 High-density digital water curtain display system

Publications (2)

Publication Number Publication Date
CN101430846A CN101430846A (en) 2009-05-13
CN101430846B true CN101430846B (en) 2010-12-08

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104808543A (en) * 2015-02-12 2015-07-29 西安理工大学 Three-dimensional digital water curtain control method
CN104795007B (en) * 2015-04-01 2017-06-30 浙江工业大学 The control device of water curtain image is shown based on black and white picture
CN104950742B (en) * 2015-04-30 2017-11-03 西安理工大学 A kind of digital water curtain wiring system and control method

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Granted publication date: 20101208

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