Cleaning along the edges of furniture in Xiaomi vacuum cleaners: the secrets of effective cleaning

Have you ever noticed how Xiaomi's robot vacuum cleaner gently walks around the legs of a chair or a closet, but it walks along the walls and boards? It's not a coincidence, but the work of a special algorithm, cleaning along the edges of furniture. A feature that often goes unnoticed, actually plays a key role as a cleaning service, without which dust and debris accumulate in the most inaccessible places: corners, along sofas, under beds.

In this article, we will discuss in detail what the cleaning mode along the edges in the vacuum cleaners Xiaomi Mi Robot, Viomi, Dreame and other models of the ecosystem, how it works at a technical level, and why its setting can dramatically improve cleaning results. You will learn which models support this feature, how to activate it through the Mi Home application, and what hidden settings allow you to optimize the process for different types of rooms.

What is cleaning along the edges of furniture and why you need it?

Edge cleaning is a robot vacuum cleaner's motion algorithm that forces it to press against walls, plinths and legs of furniture at a certain angle, and the main goal is to remove dust and debris from areas where the brush does not reach during normal cleaning, and studies show that up to 40% of contaminants in the apartment accumulate in these areas.

How does it work in practice? A robot detects an obstacle (wall, cabinet, sofa) using infrared sensors or a laser scanner (in models with a high-resolution sensor). LDS), And then it turns parallel to it, and it moves along the edge, slightly moving inwards, and the sidebrush (or the main turbobrush in some models) sweeps the debris out to the center, where it's sucked in by the vacuum cleaner.

• 🧹 Removal of "dust rollers" - those accumulations of dust that form at the boards due to static electricity.
• 🛋️ Cleaning under furniture – the robot penetrates into gaps up to 10-15 cm (depends on the model).
• 🔄 Increased coverage - without this mode, up to 20% of the area remains unharvested.

Interestingly, the first generations of Xiaomi robot vacuum cleaners (e.g. Mi Robot) V1) This function worked on a simplified algorithm: the device just stumbled on the obstacle and turned along it. Z10 Pro) use pre-mapping and plan the route in advance, which increases efficiency by 30–40%.

What Xiaomi models support cleaning along the edges

Not all Xiaomi robot vacuum cleaners have a full edge cleaning function, which can be simplified or absent in budget models, and below is a table comparing key models:

Note: In models with laser navigation (LDS) Cleaning along the edges works more precisely because the robot can see the contours of furniture and walls in advance. V1) The algorithm is less perfect – the device can skip sections or press too hard against furniture, risking getting stuck.

⚠️ Note: In Xiaomi vacuum cleaners without laser navigation (such as Mi Robot Lite), the cleaning function along the edges is often disabled by default. → Cleaning modes in the app, but the work will be less efficient.

How to enable and configure cleaning along the edges in Mi Home

You can activate the function in two ways: through quick pre-cleaning settings, or in advanced robot settings. Let's look at both.

Method 1: Quickly turn on before cleaning

1. Open the Mi Home app and select your vacuum cleaner.
2. Press Cleanup. → Set up (or Cleanup) → Parameters in new versions).
3. Activate the Cleaning Switch along the walls (or Edge Cleaning in English).
4. Start cleaning - the robot will automatically press to the edges.

Method 2: Constant activation in settings

If you want the function to work by default every time you clean:

1. Go to the Device Profile → Cleaning settings.
2. Find the Additional Parameters (or Advanced) section.
3. Turn on the option to always clean along the walls.
4. Save the changes.

In some models (for example, DreameBot) available intensity adjustment:

• Weak - the robot presses to the edge for 5-7 cm.
• Medium - standard mode (10-12 cm).
• Strong - maximum fit (up to 15 cm), suitable for high boards.

Technological nuances: how a robot determines the edges of furniture

To understand why sometimes the function doesn’t work perfectly, let’s look at how the robot vacuum cleaner detects edges:

1. Laser scanner (LDS). Creates. 3D-A room map with an accuracy of 1-2 cm Recognises walls, furniture and even small protrusions (for example, chair legs). V3, DreameBot.
2. Infrared sensors, mounted around the perimeter of the body, react to obstacles at a distance of 3-5 cm, less accurate, but cheaper. V1.
3. gyroscope + It tracks distance traveled and turns when it crashes. It's the simplest method, but with a high margin of error.
4. Cameras (in premium models) such as DreameBot Z10 Pro uses the 3D-Texture recognition cameras (carpets, plinths, rapids).

The critical point is that if there are many transparent or mirrored surfaces in the room (glass tables, glossy cabinets), the laser scanner may not recognize them, and as a result, the robot will either miss the edge or face an obstacle, the solution is to use Virtual Walls in the Mi Home app or paste matte stickers on furniture to better reflect the laser.

Another technical detail: Xiaomi wet-cleaning robots (such as the Mi Robot Vacuum-Mop P) automatically turn off cleaning along the edges when washing floors. This is done for safety, so that moisture does not get on furniture or walls. However, you can set up Hybrid Mode, where the vacuum cleaner will first brush along the edges and then start washing the floor.

Common Problems and How to Solve Them

Even in advanced Xiaomi models, the cleaning function along the edges can fail, and here are the typical situations and ways to fix them:

And you should pay special attention to the side brush, and 80 percent of the time, poor cleaning along the edges is related to the condition of the side brush.

• 🔍 Pollution. Are the hair, threads and dust wrapped on the axis? Clean the brush with scissors.
• 🔄 If the villi are worn to the base, replace the brush.
• 🔧 The brush should rotate freely, without jamming.

⚠️ Note: In Xiaomi Mi Robot Vacuum-Mop 2 Pro models, the side brush is asymmetrical in shape, so you can't put it upside down. If you put it wrong, the cleaning efficiency will drop by 50.

Hidden settings and life hacks for perfect cleaning

Few people know, but Xiaomi vacuum cleaners have hidden parameters that allow you to fine-tune cleaning along the edges.

1. Manual assignment of areas for cleaning edges

In the Mi Home app (version 6.0)+) You can select areas where the robot should pay special attention to the edges:

1. Open the map of the room.
2. Press Zones. → Add a zone.
3. Round the area along the furniture (for example, under the sofa).
4. Select the Edge Mode (or Edge Mode) mode.

Adjustment of the pressing angle

In the models with LDS-navigation (for example, Viomi) V3) You can change the angle of approach to the edge:

• Go to Settings. → Additionally. → Cleaning angle.
• Select the value from 10° (soft fit) up to 30° (aggressive).
• 15-20 is recommended for carpets°, for smooth floors - 25-30°.

3. Use of "invisible walls" to adjust the route

If the robot is too tightly pressed against the furniture and risks getting stuck, create a virtual barrier 5-7 cm from the edge:

1. In Mi Home, select the Map → Virtual walls.
2. Draw a line parallel to the furniture.
3. Save the changes.

💡

If your Xiaomi vacuum cleaner is often “lost” when cleaning along the edges, try turning off the carpet recognition function in the settings. Sometimes the algorithm confuses the carpet texture with the obstacle and refuses to drive close.

4. Optimization for different types of genders

The cleaning settings along the edges should be adjusted depending on the coating:

💡

Cleaning along the edges works more effectively if the robot moves counterclockwise (for most Xiaomi models), which is due to the location of the sidebrush and the direction of its rotation.

Comparison with competitors: who is better at cleaning the edges

Not only is Xiaomi a cleaning feature along the edges, but let's compare how it's implemented with other brands and what you can borrow to optimize it.

Xiaomi's main difference from its competitors is the flexibility of the settings, for example, in Roborock or Ecovacs, the pinching angle is fixed, whereas in Viomi, the pinning angle is fixed. V3 It can be changed manually or DreameBot, on the other hand, iRobot is better at recognizing small obstacles (such as the wire at the plinth), which reduces the risk of getting stuck.

If you’re choosing between Xiaomi and Roborock (which also belongs to the Xiaomi ecosystem), take note of this:

• 📏 Roborock S7 more precisely cleans corners at the expense of the camera, but costs 30-40% more expensive.
• 💰 Xiaomi Mi Robot Vacuum-Mop 2 Pro is cheaper, but requires manual zone adjustment.
• 🔋 Roborock has a longer battery when cleaning edges (up to 180 minutes vs. 150 minutes for Xiaomi).

FAQ: Answers to Frequent Questions