[Upgrade system] Application of integrated stepping motor in music fountain

The whether is getting warmer and everyone has more outdoor activities!

Near the end of the month, April is approaching. As the saying goes, the most beautiful in the world is only in April, when the spring flowers bloom and the branches add greenery. The outside world is mellow and beautiful, and I can't bear to live up to it.

At this time, the music fountains in squares across the country also began to test spray and debug one after another. I believe that friends from all over the world will be able to see the beautiful scenery soon.

Not much to say, let's first admire the beautiful pictures of the fountain.

Musical fountain is a kind of ideal urban landscape full of vitality. Its singing and dancing water performances, colorful lighting changes, and elegant and majestic artistic atmosphere bring fresh and happy mood to the nervous and busy modern people.

△Music fountain in the central square of West Lake

△Music fountain in West Lake East Square

△International Conference Center (Hangzhou)

△Hangzhou Grand Theater

△Dalian Donggang Musical Fountain

Thousands of water jets rise from the lake surface instantly, twisting their posture, matching the rhythm of the music, sometimes gentle and curling, sometimes a column soaring, the lights change, with the beautiful change of rhythm, showing red, yellow, blue, purple and other colors Liucai, what a visual feast!

Although the musical fountain has brought countless happiness and visual feast to people. But its construction is quite troublesome, and what is even more troublesome is its later overhaul.

The 51-year-old Lao Du is from Henan. I have been engaged in maintaining fountains for 8 years, and maintaining Yuanyang Lake Music Fountain for 5 years. Before coming to Yangjiang, he participated in major projects such as the fountains of the Guangzhou Asian Games and the fountains of the China Pavilion at the Shanghai World Expo.

In some other cities, musical fountains are only open for major festivals a year, so that the usual maintenance is not laborious. However, our fountains are basically open every night, and the use of them will consume a lot of time. They need to be overhauled every day, otherwise they will easily break down at night.

Underwater lights should be checked frequently and loosened screws should be tightened to avoid short circuit failures caused by water ingress. The suction port of the water pump should be cleaned frequently to prevent dirt from clogging the suction port, reducing efficiency and even causing equipment damage... Walking on the pipeline is like walking a tightrope, and when necessary, work starts at night.

"If the year before last, whether it was early morning or evening, I would have no problem staying in the water for as long as I could." Lao Du said, and now, just groping in the water for a while, it's too cold to bear, and it's probably old. "But as long as you stay in this post for a day, you have to do it regardless of whether it is in the water or in the snow."

In Lao Du's eyes, there is much harder work than repairing the fountain. “In fact, it can’t be said that it’s very hard work to do maintenance, but the responsibility is great. Okay, the audience can see it at a glance.” Lao Du said, “The hardest thing to endure is the cold weather launching work. Because this is work."

Behind the beautiful presentation, someone always pays silently. After reading the story behind the musical fountain, I can’t help but wonder, is there a way to reduce maintenance costs?

We start from the underlying hardware and integrate the driver board, controller, and motor.

This set of solutions mainly starts with streamlining the control system. It is very simple to say, it is to merge several of the executive components to reduce maintenance. Let's first look at the working principle of the music fountain.

The working principle of musical fountain

General music fountain system is mainly composed of audio control system, fountain control system and lighting control system. General music fountain system is mainly composed of audio control system, fountain control system and lighting control system.

As the core brain of the whole system is the control system, which is usually composed of fountain controller, frequency converter, water pump, multi-function valve, universal sprinkler and water supply pipe network. The fountain water pump has adopted variable frequency speed regulation technology to realize the stepless water pump Speed regulation can adjust the speed of the water pump at any time according to the strength of the audio signal. The multi-function valve and universal nozzle are controlled by the fountain special controller, which can realize various patterns and shapes according to the set program.

Traditional wiring form

The traditional wiring form uses HMI, PLC, driver, stepper motor, encoder and power supply.

First of all, in the hardware, the motor body is first, then the motor driver is used to drive the motor, the second is the motor controller, which is used to issue control instructions, and the last is the power supply.

A motor unit requires these four parts, which involve many parts, and the deployment lines are intricately complicated. One unit has to connect many lines. If you control hundreds or thousands of motor matrices at the same time, then maintain it~

Adopt integrated motor/integrated controller wiring method

NiMotion integrated stepper motor is composed of stepper motor, feedback system, drive system and motion control subsystems. Through highly integrated technology, these technical elements are integrated to form a whole.

The use of NiMotion integrated motors to form a matrix system requires an integrated motion controller, integrated motor, power supply and simple wiring.

The whole machine only needs power supply and CAN communication to complete the motion control. The advantage is that it avoids complicated installation and wiring, control cabinets and other facilities, and enhances the maintainability of the system. If a single node fails, only the single node motor needs to be replaced. However, no professional knowledge is required, and the advantages of the product can be more reflected in large-scale applications.

Those in need must, must, must tell us to do something together! (Customized development can be done if there is a project requirement)