Trend Towards People Feel Sensor Release New Air Conditioning Mitsubishi
Mitsubishi Electric released a home air conditioner "ZW series" 8 models, according to the location of people and activity to control air flow and wind direction, without reducing the comfort of the premise of improving energy efficiency. Will begin in mid-November 2007 listed. Pricing is open, the actual price of the company's vision is about 188, 000 yen (cooling Rated power 2.2kW, for six tatami (a tatami is about 1.62 square meters) area, "MSZ-ZW228") ~ about 328, 000 yen (cooling power rating 7.1kW, for 23 tatami area "MSZ-ZW718S").
Figure 1: Mitsubishi Electric's air conditioning "ZW Series (indoor air natives)." The black part of the central panel for the infrared sensor. The products in the machine body set LED display. Front panel LED light penetrate. Left turn display: remove operation, energy saving operation mode, air-conditioning area, according to human activity determine the apparent temperature
The company previously used
called "Moveeye" of the movable-type infrared sensor, by measuring the temperature and the floor to detect the position to control the air conditioning running. The product has further increased the detection of human activity function. For example, when the activity in sleep less, in the same sense the temperature will drop lower body temperature, cooling air-conditioning when necessary to reduce the number of output power. Sensors detect the position of people will reduce the adjustment range, according to activity level to control air conditioning, this way, compared with the normal operation of up to 50% saving of electricity.
To detect human activity, the models also improved the resolution of infrared sensors. The company uses about 160 ° swing through vertical arrangement of infrared sensors to detect the housing floor and the body temperature method. Infrared sensors for detecting the number of from 7 to 8, the right of partition to separate the number from 94 to 66 division. In this way, all the test areas on the original 462 to the 752, the heat source will be detected mobile 30cm.
Figure 2: The infrared sensor to detect the location and activities. According to the temperature (36 or so) to judge a person or other object
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In addition, Matsushita Electric Industrial also announced the use of infrared sensors, according to the location and activity of people to control the flow, namely, by "individual adjustment" to reduce the power consumption of air conditioning. However, Mitsubishi Electric said that as the use of the different types of infrared sensors, the company's air-conditioning more than Matsushita advantage.
Mitsubishi Electric uses the absolute value of measured temperature pyroelectric infrared sensor with direct measurement of the floor, and temperature characteristics of the object. Mitsubishi Electric believes that this way the floor the temperature will be reflected in the air conditioning control, can easily judge a person according to temperature or other objects. Matsushita Electric Industrial use of the pyroelectric type infrared sensor can detect temperature changes, difficult to realize such applications. Mitsubishi Electric products for 1994 had been adopted in pyroelectric type infrared sensor, followed by the year 2000 to use Pyroelectric products.
Figure 3: The air conditioning remote control through the body and displayed on the number of leaf to represent the three kinds of different energy-saving operating mode. According to one location and activity when the temperature regulator, set to be reduced by about 50% of electricity consumption, "three leaves" mode. This model applies to only one person in the house occasion. Energy-saving operation mode "1 leaf" applies uniformly throughout the room adjust the occasion, according to infrared sensors to detect the floor temperature control, a more general operation can be reduced by about 30% of power consumption. "2 leaf" mode through the infrared to detect the position, where only the temperature was adjusted to reduce power consumption by about 40%. In addition, human activity data can also be used to identify the temperature of air-conditioned area?? "Activity area." Only activity areas temperature regulation, can further reduce waste
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Mitsubishi Electric Air Conditioning Cooling System
business minister, the governing Ogawa just Paul in his press conference that "if there is a number of listed companies using infrared sensor technology, air conditioning, people's awareness will increase, " the Mitsubishi Matsushita Electric Industrial therefore welcome to compete because of the technical and performance confidence.
Mitsubishi Electric noted that "individual adjustment, " the concept is increasingly being used, the background is the period after 2001 air conditioning power consumption has been basically no difference. Even further improve air conditioning efficiency, but also significantly reduce power consumption hopeless. In this case, the sensor detected the actual use conditions to control, reduce unnecessary temperature of mediation, thus reducing the power consumption of the ideas are there.
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