The most fire sensing system promotes the rapid de

Sensing system promotes the rapid development of man-machine interface technology

man-machine interface is a facility directly related to the contact between any product and users, and it products are no exception. In the past, in order to cooperate with the development of hardware equipment, man-machine interface was almost nothing more than screen display information and various types of buttons, or keyboard and mouse (or deformed rocker, trackball and other pointing devices), but with the rapid development of various types of sensors, The human-machine interface of IT products is also very different in recent years, such as multi touch and posture detection, which have become the focus of popularity

the evolution of human-computer interface has changed with the times in the past, but the development of electronic products is a quite interesting branch in the history of human-computer interface development. In the past, it related products were mostly operated by professionals, but the rise of consumer electronic products has broken the convention that it products are only operated by experts, and must be close to the level of general consumers

therefore, the emergence of consumer electronics, a new product type, has indeed created a new situation for industrial design, and of course, it has also increased the depth and breadth of industrial design. Industrial designers of human-machine interface pay attention to the elements, not only in functionality, but also through product appearance design, so that users and products can have a benign interaction, which involves aesthetics, material use, human factors engineering, product semantics and other related knowledge. Through the integration of these knowledge, we can design a man-machine interface that meets the needs of many aspects, such as visual perception, use level and so on

therefore, in recent years, many breakthroughs in human-computer interface have appeared in consumer electronics. For example, with the introduction of projection capacitive touch technology to achieve multi touch in Apple iPhone and iPod touch, it has led to a new wave of innovation in human-computer interaction interface. Touch panels and keys, especially the multi touch mode, have become popular in the fields of consumer electronics, home appliances, small laptops and so on

in addition to multi touch, the Wii game console launched by Nintendo a few years ago also blew a whirlwind in the market, among which the most notable feature is the wireless controller that allows players to integrate real actions into the game. The biggest contributor behind the scenes is the three-axis acceleration sensor based on MEMS technology. This idea of Nintendo has brought the design of game consoles into a new stage, and also allowed more and more consumer electronic products, including digital cameras that can be processed once, notebook computers, and MEMS components, to provide better control functions or innovative applications

from the above two examples, it can be seen that human-machine interface can make a revolutionary breakthrough for products that have appeared for a long time. It is also obvious that the new human-machine interface is almost equivalent to giving new life to products. Good human-machine interface design can stimulate consumers' purchase desire and loyalty to products

however, the human-machine interface design of consumer electronic products is more difficult than that of general products. First, in the case of information products, the interface design faces great challenges. In the past, the design was often based on the user's experience (or even standards) to continue its developed mental model for design, but in the face of new products, designers must promote users to create, enhance Then save the experience. However, because information products are easy to carry and have communication functions, it becomes more difficult for designers to grasp when discussing the use situation, so that it is difficult to capture the human-computer interaction behavior. Among them, designers must understand the core requirements and use relevant knowledge to transform abstract concepts into interface operating procedures, interface elements, etc., so that the user's mind can establish a system model for product use. Product design is bound to respond to the emergence of information products, modify the old or establish new design methods or procedures to meet the design needs

of course, designing a "good" human-machine interface is already a very difficult part of designing products, because human-machine interfaces must consider ergonomics, user psychology, etc. of non IT technology, and designing a revolutionary human-machine interface requires a considerable understanding of the foundation of human machinery - sensors, which is also a key point that many human-machine interface designers are not familiar with

there are many types of sensors that can be used in the human-machine interface

the fields that sensors can detect are quite wide. According to the research of global industry analysts, Inc (GIA), a business intelligence research organization in the United States, there are more than 10 kinds, for example, chemical gas biosensor detection. The representative technologies used include far-infrared ray, thermal conductivity, ionization, etc., which are used for gas or oxygen detection. The principle of pressure detection is micro electromechanical, vacuum, blood pressure, optics, resistance, etc. before use, typical applications include tire pressure detection, resistive touch panel, etc. The principles of flow detection include Coriolis force, eddy current, ultrasound, electromagnetism, capacitive electric field, etc. the typical use is to project capacitive touch panel

others include proximity displacement sensing, image sensing, position sensing, level sensing, temperature detection, force load detection, etc. Please refer to the attached table for detailed classification

in the past, most of these sensors needed to continuously detect or contact the target in order to obtain the information of the target, but such a situation would cause shortcomings such as consumption, interference, or the need for greater attack and operation. Fortunately, with the progress of science and technology, many contact sensors have been replaced by non-contact sensors, and also overcome the above-mentioned problems, and even improve the accuracy and stability of Dafu

with the advancement of semiconductor process and other technologies, miniaturization has become an irreversible direction, and sensors have also been greatly helped by this trend. For example, it can be seen from the above that the microcomputer experimental machine is a kind of equipment that plays a very important role in production activities. The development of electrical systems, such as silicon microphones, 3D accelerometers, RF components Camera stabilizers and GPS gyroscopes have entered consumer electronics, which can replace traditional metal products in many aspects of technology. Of course, it has also brought a considerable human-machine interface revolution. In general, in addition to the aforementioned MEMS sensor systems, according to the research of GIA, image sensors, biosensors and motion sensors are the most important development directions, and their derived product families are also quite large

sensor technology affects the development of human-machine interface

as the importance of sensing system in human-machine interface design is greatly improved, the technology of sensor itself often becomes the key to the success or failure of human-machine interface. Obviously, when manufacturers design products, the technology of human-machine interface has also become the core key. For example, recently, the threshold of projected capacitor technology is quite high, mainly in the process and fitting of the screen, There are quite a number of hurdles, such as how to achieve the best touch effect with different fitting modes, anti-interference and the patent or intellectual property rights of ITO coating technology, all of which make manufacturers puzzled. The final result is that the yield is not easy to rise, which affects the end products

this yield problem does not happen overnight. It has been grappling with this problem since the projected capacitor technology became the main technology supporting multi touch. This also explains why everyone sees a lot of dot touch technology. Even after the iPhone is sold, it is predicted that multi touch will become the mainstream human-computer interface, but so far the market penetration of multi touch is still slowly advancing

of course, there is not only one technology for multi-point touch. Perhaps a certain technology has suddenly sprung up to replace projected capacitors and become the mainstream of multi-point touch. This also reflects that manufacturers must go ahead in the development of sensors, so as not to have time to launch the corresponding human-computer interface technology when the technology is mature. Although such a research and development concept is very common in other technologies, such as the development of OCR and BCR technologies, When the 300000 pixel lens appeared on the market, many manufacturers thought it was not feasible at all, but some manufacturers were already studying the identification effect

after research, the manufacturer did find that 300000 pixels could not achieve a perfect effect. It seemed to take a lot of effort, but it reached a conclusion similar to that of the manufacturer who did not develop it. But the fact is that the development of 1million pixel lens did not take long to develop, reaching the minimum threshold of recognition. Manufacturers who had studied technology in the era of 300000 pixels immediately took the lead to launch practical products. The same is true of human-machine interface research and development. When the hardware has not been positioned, we should have an insight into the development trend and develop human-machine interface technology

for example, with touch products springing up, if domestic manufacturers want to follow this trend and even design human-machine interfaces at the front end of hardware, they must have the following mentality: 1. Constantly study and think about the touch design trend of consumer products. 2. Simulate the future innovative touch application mode and situation, and explore the development direction of touch technology. 3. With different application situations, how to give consideration to the satisfaction of consumers' needs and the development of touch technology in product design

the gap between sensing system and human-machine interface products

discussing human-machine interface, the great hero behind the sensing interface can never be ignored. However, due to the high difficulty of human-machine interface design, in this difficult task, plus a sensing mechanism that has not been verified by the market, the possibility of failure is higher, so most manufacturers who develop human-machine interface follow the technology that has been successful in the market, Of course, after a sensor is adopted and developed, the follow-up is often a relatively simple task, but if you have a comprehensive understanding of the sensor, you may find that a sensor is very suitable for designing the human-machine interface of a product, and become a pioneer in a market