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Lighting & Air Conditioning Service at a Karaoke/KTV bar

PACTECH / ICP DAS (Vol. EC01_2016, by JE Wang)

Karaoke/KTV has become one of the most popular entertainment arenas for modern people. Automation control has been introduced to enhance the services already provided, and to create add-on value by delivering new services.

System Description

Lighting control and air conditioning are the most critical features for indoor entertainment sites, especially for private Karaoke/KTV rooms. Lighting control usually plays a vital role in creating a pleasant atmosphere, and air conditioning helps to remove unpleasant odors while also adjusting the temperature to ensure a comfortable environment.

Lighting Control System

When it came to the design of a lighting control system in the past, the designer usually tried to separate the operations into as many elements as possible. The customer then had to perform a large number of processes to make manual adjustment, and turn multiple switches on or off to achieve the desired effect for specific lighting requirements. Nowadays, as lighting control requirements are becoming increasingly complicated , people prefer a simplified all-in-one-touch operation, i.e., a control panel with convenient one-click options to achieve the various lighting requirements.

Air Conditioning System

Unlike general window air conditioners typically used for households, the air conditioning systems for large-scale applications such as commercial offices, buildings, shopping malls, and so on, usually adopt centralized air-conditioning systems. To adjust the air conditioning in a specific region of a centralized air conditioning system, the measurements from temperature sensors are often required so as to control the valves accordingly. As a result, three significant operations are involved: “Start/Stop the Switches”, “Adjust the Air Volume” and “Target Temperature Settings”.

In the past, these operations were performed by turning the switches on or off and adjusting them the switches to control the air volume in order to achieve the desired temperature, and the configuration was hard to perform. As Technology has advanced in recent years, these tedious operations can be replaced with an integrated control panel containing intuitive interfaces that allow users to efficiently perform each the tasks simultaneously.

System Architecture

To create a comfortable environment at Karaoke/KTV sites, ICP DAS provides a lighting control and air conditioning control system. The architecture of this system is planned by carefully considering all the requirements from an integrated perspective. The design for the communication connections and the modules selected are all prepared by collecting data based on the scale and needs of the location. The Modbus protocol is used to implement the communication for this system. As ICP DAS provides a wide range of Modbus modules to select from, it is easy to choose a device that has the most appropriate I/O combinations to meet the specific requirements based on the control operations and functions of the devices.

System Integration

In this modern world, independent systems that don’t include distributed resources are gradually being eliminated due to a lack of efficiency and flexibility. Consequently, small orders (subsystems) of a system are becoming popular thanks to the advantages they provide, such as the flexible features, effective costs and energy efficiency, which are the necessary components of the “Internet of Things”. The system can operate independently while simultaneously providing inter-connective communication if required.

This Karaoke/KTV system is also implemented based on the subsystem concept. The subsystems of the Karaoke/KTV system, such as the lighting control system, the air conditioning system, and the service system, can function independently, but can also communicate with each other. Under this distributed architecture, an ISaGRAF PAC functions as an agent controller for the information exchange and linking operations, as well as for communicating between newly-added services and the original operations of the Karaoke/KTV system.

A. Song Menu System

The songs stored in the database are classified into four modes: “bright”, “soft”, “romantic” and “dynamic”. When a song is played, a signal will be sent to the lighting control system to launch the corresponding lighting control operations.

B. Timing System

The system can perform operations related to the time charging for the room. It can also automatically turn on the equipment in a private room just before the occupancy time starts to be charged. When the room is idle, the operations can also be automatically turned off so as to save energy.

C. Cleaning Service System

In a Karaoke/KTV room, carts and crockery are used for dining services. If the customers in a private room require it to be cleaned, they can move the dining cart and the used crockery to a specific zone. Through infrared position detection, a message can be automatically sent to cleaning service staff to provide an immediate notification.

D. Central Control System

The Centralized Control System provides complete real-time information related to the status of a private room to enable the most efficient operation. However, the private room may not be located close to the control center. In this situation, modules that include an Ethernet port are used to communicate between the private room and the Centralized Control System.

Summary

In this Karaoke/KTV application, the issue we faced was that each private room was equipped with a lighting control system, an air conditioning system, and a call button for the service system, as well as a few services for other purposes. In the initial deployment, each service was independent of each other, therefore a separate wall-mounted control interface was required, which confused the customers and made it difficult to maintain.

By using the ICP DAS lighting and air conditioning control solution, all of the services could be integrated, and the operations could be linked for a more efficient performance. The resources and information could be shared, and the combined data could be easily collected for further analysis and management from an overall perspective. The integrated touch screen HMI controller allowed all control interfaces to be displayed as pages on a single touch screen, meaning that the operations could be simple, intuitive and efficient, providing the customers with a complete new and better service experience.

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ICP DAS was established in 1993 and strongly focuses on innovation and the enhancement of industrial automation technology. ICP DAS continuously endeavors to develop a comprehensive selection of products ranging from remote I/O controllers, distributed I/O modules, I/O data acquisition boards, programmable automation controllers, industrial communication modules, web-related products, motion control systems, SCADA/HMI software to automation solutions for applications critical to energy management, motion automation, smart factories, intelligent buildings, and smart cities. Our ambition is to provide a wide range of high-quality products and versatile applications, together with prompt and efficient services, that can be implemented to assist in the continued success of our clients worldwide.

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