It has been more than 20 years since the robot vacuum cleaner came out. This product, which can only be used for vacuuming at first, was once considered by many people to be a tasteless product. Why? Because the cleaning was not clean, it had to be swept again manually, and the size at that time was huge, and the sofa and the bottom of the table could not get in, so it could only be used as a simple vacuum cleaner.
Later, thanks to the progress of science and technology, the sweeping robot began to have its own built-in sensors, chips and algorithms. For the sweeping robot, it is definitely a revolutionary improvement, making it truly worthy of its own name. Taking the stone brand as an example, these few Over the years, it has been continuously updated with more and more functions.
For example, linked mobile app, remote cleaning, one-key partitioning, constituency cleaning, pointing to sweeping and other software functions, the hardware level has added sweeping and dragging integration, more sensor recognition, truly completed the essential evolution of sweeping and dragging robots, and the previous generation The product T7 Pro even added AI dual camera to check the ground cleanliness in real time.
Recently, Roborock released the latest sweeping and dragging robot, the T7S series, which is the annual flagship of the brand. The author got this product in advance, and let’s see how its performance will be.
The T7S series includes two products, T7S and T7S Plus. It can be seen from the name that the T7S series is based on the T7 series of sweeping robots, adding the mopping function, and at the same time, it is upgraded accordingly, and the sweeping and mopping performance is improved again.
Stone T7S Plus
Stone T7S Plus
The Roborock T7S Plus sweeping and mopping robot follows a family-oriented and sleek design. The body is made of cloud white stone, and the top edge is designed with water ripples in the inner ring, which enhances the sense of visual hierarchy. Many sweeping robots do not pay attention to industrial design. Roborock sweeping and mopping robots At least the appearance has maintained its beauty and high value.
Left and right dual laser transmitters
On the top are three buttons for cleaning/switching, recharging and local cleaning
LDS laser sensor on top
It can be seen that there are a lot of sensors around the Roborock T7S Plus. Among them, the dual camera of the previous generation has been changed to a dual-line structured light scheme, replacing the traditional infrared light source, so as to achieve long-distance measurement, and it is an active ranging method to achieve millimeters. High-precision obstacle avoidance, even in low light environments.
In addition to dual-line structured light, Roborock T7S Plus also has LDS laser ranging, ultrasonic carpet recognition, and high-precision wall sensors.
open dust box
The Roborock T7S Plus is equipped with a 480ml large-capacity dust box. The filter screen is placed above the dust box, which is not easy to drop dust. The water tank capacity also reaches 300ml, which supports up to 250m² of wet mopping with a small amount of water.
Bottom of the fuselage
Looking at the bottom, the Roborock T7S Plus is equipped with a single main brush + single side brush, steering wheel, drive wheel, main brush, side brush, as well as six cliff sensors and a new ultrasonic carpet recognition sensor.
In addition to the Roborock T7S Plus, the author also got the Roborock automatic dust collecting and charging stand. This accessory is quite useful, which can truly realize unattended automatic cleaning, and greatly reduce the cleaning frequency of the sweeping robot.
Stone automatic dust collector charging stand
The dust bag adopts a sliding bag mouth sealing design, which is automatically sealed after use. It is made of high-density composite antibacterial material.
The capacity of the dust bag is 1.8L. For daily cleaning in the home environment, one dust bag can be used for about a month.
When using the automatic dust collection and charging base, it is necessary to replace the built-in dust box of the sweeping and mopping robot
Stone automatic dust collector charging stand
Stone automatic dust collector charging stand
Stone automatic dust collecting and charging base adopts multi-cone cyclone separation technology, which throws dust into the dust bucket through centrifugal force, and has passed the TUV Rheinland suction non-loss certification, and the dust bucket supports water washing and is equipped with a wind pressure detection sensor. Remind users in a timely manner.
2. Practical experience
As a smart home, it must be able to connect with terminals such as mobile phones and smart speakers. We use the most used mobile phones to connect here. The first step is to connect them to the wireless network and search and add them in the mobile APP.
The Roborock sweeping and mopping robot can be connected using the Mijia APP and RoboRock (the official RoboRock APP). We use RoboRock here.
Open the APP to add a device, select the corresponding Wi-Fi network and enter the password to connect, which is basically the same as the current common smart home devices, and can basically be completed within 1 minute.
2、Intelligent identification of obstacles
Obstacle avoidance is a problem that all sweeping robots need to solve. Not only sweeping robots, but even the entire robotics field has the problem of how to add vision to robots. At present, there are two types of obstacle avoidance solutions for sweeping robots. One is vision. Recognition and obstacle avoidance, the other is based on laser or structured light for obstacle avoidance. This time, the Roborock T7S Plus uses 3D dual-line structured light. With multi-sensors and AI algorithms, it is said to achieve millimeter-level heights. Accurate obstacle avoidance.
It can be seen from the video that the double-line structured light of Roborock T7S Plus does have a certain effect, and it can also avoid collisions in a small space. If there are handicrafts that are easy to knock down at home, it will not be bumped by robots to protect the home and kick. foot line, while reducing the wear and tear caused by collision. The previous generation of Stone T7 uses AI dual camera, which uses visual recognition to avoid obstacles, but after actual testing, the accuracy of obstacle avoidance with dual-line structured light is higher.
In addition to some of the previous settings, Roborock T7S Plus has a carpet cleaning function. When the device is in a carpet environment, it will automatically raise the mopping module and stop vibration and water. It only cleans the carpet. This is definitely a pain point for the mopping robot to clean the home. , If the room has carpets and floor tiles, then use this function to greatly reduce the trouble for users to remove the mop.
Stone T7S Plus supports custom mode. For example, if room A is a floor tile, then it is marked here to use sweeping and mopping. If room B is carpeted, then only sweeping mode is used.
Actual test, the water tank is full of water, turn on the strong wiping mode, but put it on the carpet for cleaning, and check whether the mop is running.
It can be seen that if the mopping mode is turned on in a carpet environment, the Roborock T7S Plus will automatically raise the mopping module to a distance of more than 5mm from the ground. To this end, an ultrasonic recognition sensor has been added to accurately identify the carpet without getting wet or wet. Missing carpet environment.
Let’s talk about how the ultrasonic recognition sensor realizes the distinction between carpets and floor tiles. It mainly judges the ground material by the inconsistent performance of echoes on hard surfaces such as carpets and floor tiles. The smooth surface of the floor will cause ultrasonic vibration to have multiple echoes, while Carpets are absorbed without echoes, so as to distinguish different materials for cleaning, and Stone has also established a carpet identification library, which basically covers more than 95% of the types of carpets on the market.
In addition, when charging, the mop holder remains raised, allowing the bottom of the mop to circulate air, reducing the growth of bacteria, and there is no need to remove the wet mop when charging.
Roborock T7S Plus has a suction power of 2500Pa and a fan speed of 20000 rpm, which is the strongest in the sweeping and mopping robot industry. It can clean various household wastes such as hair, steel balls, millet, and food residues. It has a built-in 5200mAh battery, and the official standard list The second battery life is about 2.5 hours, and the maximum cleaning area is 250m².
For the first time, an independent brushless motor is applied to the sweeping robot module, and the design of the high-precision gearbox is original. A single motor can be integrated with a peristaltic pump to spray water, vibrate the floor, and lift the pallet. It can be customized for each room through the mobile APP. There are three options for mopping strength and mopping mode, and the T7S Plus’s carriage and mopping module are counterweighted with steel plates, and the downforce is about 6N, which improves the decontamination ability.
Stone T7S Plus has a built-in 300ml water tank, which supports up to 250m² of wet mopping with a small amount of water, and has a special cleaning solution to decontaminate and inhibit bacteria.
Roborock T7S Plus is the flagship of the current sweeping and mopping robot, and has many innovative and user-friendly functions. It has no rivals in the price range of 3,000 yuan, especially the addition of the sonic vibration mopping system, which makes the sweeping and mopping robot one step closer to convenience. .
It is true that compared with old-fashioned household appliances such as refrigerators and TVs, the sweeping and mopping robot is still a new product, not an essential home appliance product, but it is only after using it that you know its importance, and it really frees your hands to sweep and mop the floor. It’s okay not to buy the kind of products that you regret not buying earlier.
The data shows that in recent years, sweeping robots have become the smart home searched by many people. In fact, our motivation is very pure, that is, to improve the quality of life and let ourselves rest better. Before returning home, the floor of the house was cleaned by the Stone T7S Plus. Replacing human labor with technology is the original intention of technological development.