Din Rail Switching Mode Power Supply air conditioners work in turn and set the temperature?

With the continuous development of network information technology, the environmental parameters in the computer room where the server is stored are also becoming more and more important. Some small and medium-sized computer rooms keep the temperature inside the equipment room within a certain range. Not only one air conditioner is installed, but also a spare air conditioner is stored. The purpose is to prevent malfunction of the air conditioner in operation or other reasons. It is necessary to turn on the backup air conditioner. However, it is impossible for the computer room management personnel to stay in the computer room for 24 hours. In order to reduce the burden on the computer room management personnel, the air conditioner intelligent switcher can solve this problem well.
The air conditioner switch can control two air conditioners at the same time to realize functions such as air conditioner caller self-start, timed temperature control switch, failover, and fault alarm. Applicable to computer room, outdoor base station, archives, warehouse and other places. Its principle of using infrared code to switch air conditioners makes the device compatible with all brands of air conditioners on the market.
First, the air conditioner switch concept
The air conditioner dual-machine switcher is a kind of intelligent air-conditioner controller, which can detect and control the running state of the air-conditioner, and control according to the preset air-conditioner operation, shutdown and combined behavior, with automatic call start function, cycle switching, temperature control, Timing control, relay output and other functions. The purpose of protecting equipment, saving energy and reducing consumption, improving the efficiency of computer room management and extending the service life of air conditioners has been achieved. This product is widely used in civil, small and medium-sized computer rooms, communication stations, UPS machine rooms in all types of cabinets. Mainly used for switching control of two air conditioners.
Second, the advantages and Din Rail Switching Mode Power Supply
Industrial design
It adopts industrial grade design and built-in watchdog circuit to ensure the normal operation of the equipment.
32-bit ARM processor
With a 32-bit ARM processor, it features fast processing and stable performance.
User-friendly interface
The display part adopts a TFT color liquid crystal screen, and has a user-friendly operation interface, and the operation is simple.
Brand optional, temperature optional
Built-in thousands of infrared codes, supporting up to 30 air-conditioning brands, including Midea, Gree, Oaks, Island, Skyworth, Chunlan, Daikin, Galanz, Haier, Hisense, Hualing, Kelon, Likal, Hitachi, Mitsubishi, Mitsubishi Electric, Mitsubishi Heavy Industries, Samsung, Panasonic, Sharp, Duckling, Electrolux, Sakura, Chigo, Changhong, Wellcome, TCL, LG, etc., support more than 95% of air conditioners on the market, and can set the boot temperature.
Universal infrared code learning function
Some uncommon air-conditioning brands that do not support built-in infrared codes can use the infrared code learning function to control air conditioners.
Call self-start
When the air conditioner encounters a power outage and then calls, the air conditioner shutdown cannot be automatically started, and manual startup is required, which brings great trouble to the management. When the power is detected and the call is detected, the infrared signal can be automatically sent to turn on the air conditioner without human control. The call start time can be customized.
Cycle switching
Single or two air conditioning cycle switching can be set, and the cycle switching time can be customized to support 1 minute to 99 hours. Cycle switching is often used to alternate between two air conditioners to improve air conditioning life.
Real-time temperature monitoring and control
It can monitor the ambient temperature in real time, and can be customized. When the ambient temperature exceeds or falls below the custom threshold temperature, the air conditioner turns on or off, and the cycle switching function is turned off until the temperature returns to normal.
Timing control
With RTC real-time clock, up to 5 timed tasks can be set to automatically control the air conditioner at a certain time. The timing mode can be set to single, daily or weekly.
One relay output
It can be customized to turn on or off the relay when the temperature is too high, too low or normal. The Din Rail Switching Mode output is recommended to connect the sound and light alarm to achieve high and low temperature warning function.
Third, technical parameters
 2-way infrared interface
Connection method: Plug and play
Control distance: <5 meters
1 relay output
Contact capacity: (AC) 250 V @ 3 A
Contact capacity: (DC) 30 V @ 3 A
On time (typical): 3 ms
Disconnect time (typical): 1 ms
Insulation resistance: minimum 1000 MΩ (500VDC)
Appearance parameters: 140*100*32mm
Power requirements: DC: +9V ~ +12VDC
Power consumption: 1.9W @12VDC
Mechanical characteristics: ABS plastic housing, standard DIN rail mounting
Environmental characteristics
Working temperature: -10 ~ 60 °C
Storage temperature: -20 ~ 85 °C
Humidity: 5 ~ 95%, no condensation
Fourth, the application area
Industrial site control
Computer room monitoring
Intelligent building
Power communication
Warehousing and monitoring
Electronic product manufacturing
Food machine beverage industry
Five, wiring method
Content source：http://www.wattconenergy.com/

Microsoft exposes four VR touch studies to let you touch VR world like "Number One Player"

Spielberg's "The Number One Player" is a hit, and the male player can interact with the virtual world through touch-sensitive gloves and the X1 somatosensory suit. Beyond the movies, how to get a sense of touch in virtual reality and how to interact more naturally is a topic of current concern to researchers. Recently, Microsoft's research team has released four latest virtual reality research results: CLAW, Haptic Wheel, Haptic Links, and Canetroller, which can better help users “touch” objects in virtual scenes and enjoy the wonders of the virtual world.

VR

Although VR and AR have made tremendous progress in the past 30 years - they have been able to provide users with a fantastic visual and 3D audio world, but when we reached out and touched those virtual objects, the illusion would be instantly disillusioned. Only air came.

There are many reasons why virtual touch is difficult to achieve. People who have watched movies know that eyes and ears can be deceived by a movie of 24 frames per second, but the sense of touch is very different and it is more complicated. Part of the challenge of implementing virtual tactile sensations comes from hardware. In the laboratory, designing a handheld device suitable for individual user wear is often difficult. Many prototype devices today are only capable of simulating specific sensations, such as texture, temperature, or weight, and such devices are often unattractive. More sophisticated mechanical technologies may result in equipment that is too expensive, too large or too fragile to appear in the consumer market.

The Microsoft research team has been exploring how to use existing technology to simulate the generation of multiple haptic sensations on a handheld VR controller, enabling users to touch and grab virtual objects and feel the fingertips slide across the surface of the object. Their dream is to allow users to interact more naturally and more with the virtual digital world.

CLAW

CLAW is the first new multi-function haptic controller developed by the Microsoft research team. Using a single motor, CLAW extends the VR controller concept to a versatile haptic feedback tool. The CLAW has a unique robotic arm that simulates force feedback when the user's hands are holding hands and turning their fingers (see below).

CLAW
(Left) Configuration and components of CLAW; (right) CLAW simulates user grabbing and touching the surface of a virtual object

As a multi-function controller, CLAW contains all the functions of a normal VR controller (thumbs and joysticks, 6DOF (Degree of Freedom) control, index finger triggers) and various touches that are enabled for the most common hand interactions. Rendering: grab objects, touch virtual surfaces, and receive force feedback.

What's unique about CLAW is that it can adjust haptic rendering by sensing the difference between the user's grip and the virtual context environment. When the user tries to hold the virtual object (as shown below), the device creates resistance between the index finger and the thumb, simulating the feeling of the object being held. The force sensor embedded in the index finger holder allows the user to "feel" the different materials of the object by changing the feedback of the motor.

VR
Microsoft VR head display
proposed price
No offer

If the user holds the handle and makes a pointing gesture (as shown below), CLAW provides a touch feeling. As the fingertip moves toward the surface of the virtual object, the CLAW generates resistance, pushing the finger back and preventing it from penetrating the virtual surface. In addition, when the index finger slides along the virtual surface, the voice coil mounted below the tip of the index finger generates a small vibration to mimic the surface texture of the object.

VR

Perceiving the power exerted by the user can also help the user interact with the virtual object. For example, in a virtual painting program, the program can adjust the intensity of the brush by sensing the strength of the user's hand.

Haptic Wheel

To further simulate the tactile experience of the index finger on the virtual object's material and surface friction, Microsoft has also developed another new haptic controller - the Haptic Wheel. The driving wheel used by the Haptic Wheel simulates the touch of the finger with the surface of the virtual object by moving up and down, and simulates the shear forces and sliding sensations generated when the user slides along the virtual surface by rotating.

When the user touches the surface of the virtual object, the wheel will rise and touch the fingertip, and then begin to rotate to simulate the friction between the fingertip and the surface of the virtual object.

VR

Figure 2: (Left) When the user hovers over the surface of the blue area of the wheel, the rendering engine moves the appropriate wheel surface under the finger; (middle) When the user approaches the black area in the virtual environment The rendering engine turns the wheel so that the same material as the black edge approaches the finger; (right) When the finger is hovering over a small black surface, the rendering engine adjusts the gain of the wheel so that the finger touches correctly The edge of the feeling.

The wheel of the device is replaceable and can contain various physical tactile elements to provide users with different feelings when they explore the virtual environment. When a user explores a virtual environment, the rendering engine passes the appropriate haptic sensations to the fingers based on the environment. For example, in a virtual card game, when the user touches a card, a poker chip, or a table, the device rotates the wheel to present a proper texture perception under the fingertip. As the user slides along the surface, the wheel rotates under the finger to create shear and sliding sensations.

VR
Haptic Wheel Customized Wheels with Different Tactile Feelings in Different Virtual Environments

Haptic Links

Another problem that is difficult to solve in tactile exploration is how to simulate the use of both hands in VR or AR applications. For example, with both hands holding a box to feel its size, or use your hands to feel the tension on the bow.

VR
Tools that simulate the user's hands in a virtual environment

Haptic Links consists of several types of connectors that provide different stiffness perceptions between two handheld VR controllers. Haptic Links can dynamically change the power felt by the user's hands to support the rendering of various types of two-handed objects and human interactions, making the controller behave like a two-handed tool. They can constrain the specific degree of freedom or direction of motion between the controllers, and can also be set within a range of stiffnesses to simulate different frictions, viscosities, or tensions. Through these methods, Haptic Links makes the interaction in the VR scene more realistic and gives people an immersive feeling.

VR

Microsoft made three prototype devices for Haptic Links. Each design has its own compromise and advantages, making it the best fit for a particular application. The Chain prototype device (in Figure 5) uses a highly articulated chain consisting of ball and socket elements. A powerful cable runs through the chain and connects to linear actuators on each end. The movement of the push rod motor controls the tightness of the chain and further controls the user's operating space.

VR
3 different prototype devices for Haptic Links

Layer-Hinge (figure 5 left) uses a ball joint to adjust the controller's rotation and uses a hinge to control the distance between them. Its advantage is that it can selectively lock the freedom of movement of the controller. In addition, it can control the friction force of each joint relatively accurately, so that the device simulates a continuous range of stiffness values in the hinge and ball joints.

The Ratchet-Hinge (figure 5 right) uses a similar ball joint at the bottom of the controller, but instead of the hinge with a double ratchet, it can independently brake inward or outward movement. When two ratchets are engaged, the gears are fixed; when both ratchets are disengaged, the gears can rotate freely. When a ratchet is disengaged, the gear can move freely in one direction but not in the opposite direction. Directional selectivity enables unique force feedback interactions.

Haptic Links can improve the perceived realism of objects requiring two-handed operation in a virtual environment without overly affecting the normal interaction of the two controllers.

Canetroller

The "traditional" virtual reality experience is strongly visualized in nature, so visually impaired people usually cannot use it. The Canetroller prototype device developed by Microsoft Research hopes that visually-impaired people can also use a walking stick for blind guidance in virtual environments.

Canetroller offers three types of feedback: (1) physical resistance from wearable, programmable brakes - simulation of a virtual cane hitting a virtual object; (2) vibrational haptic feedback - simulation of a cane striking an object or across a variety of surfaces (3) 3D auditory feedback - simulates the sound of a real world cane.

VR
One blind person is using Canetroller

Canetroller allows low vision and blind people to perform simulated blindness training in different virtual spaces, reducing their risk in the daily environment. Microsoft hopes that this work will motivate researchers and designers to design more effective tools to make VR more inclusive, taking into account the different groups around the world.

The Microsoft research team's innovations in virtual touch, on the one hand, hopefully stimulate the imagination of other researchers. On the other hand, they hope to bring new applications and hopes for special groups such as visual impairment and help them improve their quality of life. In addition, researchers hope that these innovations will encourage more consumer products to use haptic rendering technology. I believe tactile products will soon make VR and AR products more realistic and immersive.