Related: Xiaomi Vacuum Cleaner 1S Robot Card

Operating smart vacuum cleaners makes life much easier, but owners of the Xiaomi Vacuum Cleaner model 1S (model STYTJ01YM) Often faced with an annoying problem: after charging or updating, the device “forgets” the planned route, which means that the gadget every time starts cleaning from scratch, re-scanning the room, which increases the time of operation and wear of the battery. Permanent loss of the card annoys users as it is impossible to configure virtual walls or divide into rooms for more efficient cleaning.

The problem is that the LiDAR navigation system, which is based on laser perimeter scanning, creates a vector map, unlike camera models, that must be forcibly stored in the user's cloud profile. If you don't, the data stays in a temporary buffer and is erased when you restart the system. In this article, we'll detail the algorithm of actions that will allow you to fix the layout of your home in the device's memory.

To do this successfully, you will need a stable 2.4GHz Wi-Fi connection and an up-to-date version of the Mi Home app. It is important to understand that the saving process requires interaction with both the robot itself and the mobile interface. Ignoring the steps can lead to the map being recreated each time it is launched.

Principle of operation of navigation and reasons for discharge

The Xiaomi Vacuum Cleaner 1S robot vacuum cleaner uses a laser rangefinder (LiDAR) located on the top panel to build an accurate model of the room. The sensor rotates, emitting beams and measuring the time of their return, which allows you to build the contours of walls and furniture. However, by default, the device does not save this circuit forever unless it receives a corresponding command from the user through Xiaomi servers.

The main reason the card disappears is because it is stored in RAM until the cleaning cycle is completed and synchronized successfully. If you interrupt cleaning, pick up the vacuum cleaner, or it goes to charge before the scan is completed, the data may be lost.

Also, you have to consider that moving a base station or moving furniture around a lot can knock down the positioning algorithm, and in such cases, the robot stops recognizing the room and initiates the creation of a new map, erasing the old one. Stability of the charging dock is critical to linking the map to the coordinates.

Preparation of equipment for map construction

Before starting the procedure, you need to make sure that all systems are ready to work. First of all, check the battery status: the charge should be at least 60%, although it is better to start the process with 100%. Low energy levels can lead to the robot recharging at the most critical moment, interrupting the saving process.

The second important step is to prepare the room, and remove the wires, socks, and small objects that can wind into the brush from the floor, and open doors in all the rooms you want to add to the map are mandatory, and if the door is closed, the robot will perceive this as a wall, and then you will have to manually edit the map or rebuild it.

It is also recommended to clean the laser rangefinder itself of dust, gently wipe the upper turret with a soft dry cloth. Even a thin layer of dust can distort the rangefinder readings, which will lead to "noise" on the map and problems with fixing it. The purity of the sensors directly affects the quality of navigation.

Step-by-step instructions for creation and preservation

The process of saving the map consists of several consecutive steps that must be performed precisely: first start the Mi Home app and select your robot. Press the cleanup start button. The robot must leave the base and start moving around the perimeter.

Let the device completely remove the room and return to base, and it's important to keep this process going. Once the robot has started charging and announced that it's finished cleaning, the map should automatically appear in the app. If that hasn't happened, go to the map settings.

To force saving, go to the map management menu (usually the card icon in the upper right corner or in the three-dot menu). Select the option "Save map" or "Edit Map". The system will prompt you to name the map if you use the multi-maping function (multi-floor). The map name will help distinguish floors, for example, "1 floor" or "Apartment".

Once confirmed, the data will be sent to the server and assigned to your account, and the next time you run, the robot will use the stored geometry to build a route, rather than scanning the space from scratch.

Configuring virtual walls and zones

Once the map is successfully saved, you can fine-tune the cleaning, so you can create virtual walls that the robot won't cross, and no-go zones, and this is especially true for protecting long-pile carpets or places where animal bowls are.

In the map interface, select a drawing tool. You can draw a red line (virtual wall) or paint over an area (no-go zone). Painting accuracy is important: try to make indentations from real objects at least 10-15 cm so that the robot does not get stuck.

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Use Rooms to divide a single space, and if the robot makes a mistake and combines the kitchen and living room into one room, use the Divide tool to draw a line between them.

There's also room selection, which you can tell the vacuum cleaner to clean only in a particular room, or you can choose to exclude one of the areas, which saves battery life and time, and selective cleaning is one of the main benefits of having a stored map.

Solving the problems of missing the card

If, despite the execution of all instructions, the card continues to disappear, you should conduct a diagnosis. Often the problem lies in the network connection. Make sure that the router distributes the network at 2.4 GHz, since many smart home devices do not support 5 GHz.

Another common cause is a change in the height of the thresholds or the appearance of new obstacles, which the robot perceives as critical changes in the environment, in which case it may require the complete removal of the old map and the creation of a new one from scratch.

⚠️ Note: When deleting the card, all customized virtual walls and no-go zones will be permanently removed.Be sure that the current configuration does not suit you before resetting.

Also try resetting the robot's Wi-Fi module, pressing the Home and Turn on buttons (or power button, depending on the modification) for 5-7 seconds before the voice message about the network reset, and once reconnected to the network, the problem may disappear.

Table of error and status codes

When you're working with a map, the robot can report different statuses, and understanding these signals helps you diagnose the problem more quickly.

Analyzing these statuses allows you to quickly understand where the failure occurred: on the hardware, network or software side.

Frequently Asked Questions (FAQ)

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The key to success is a stable Wi-Fi and a fixed base, and without these two conditions, the card will fly off all the time, regardless of the firmware version.

Compliance with all the guidelines will allow you to enjoy a smart cleaning without the need for constant monitoring.