I. Project Background

with the rapid development of warehousing and logistics, intelligent manufacturing, pharmaceutical distribution, cold chain logistics and other industries, the application of Autonomous Mobile robots (AMR, Autonomous Mobile Robot) in these fields is increasingly widespread. Through autonomous navigation, environmental perception and intelligent decision-making, AMR can efficiently complete tasks such as cargo handling and distribution, greatly improving operation efficiency and reducing labor costs. With the popularization of AMR, how to provide efficient and convenient power supply solutions has become an urgent problem in the industry.

In the power system of AMR, the battery, as its core component, directly affects the running efficiency and endurance of the robot. The traditional charging method has the problems of long charging time and high charging frequency, which leads to the decrease of the working efficiency of AMR during use. Therefore, it is particularly important to design an efficient power exchange system. This solution will be described in detail around the 48v AMR switching system in order to provide a reliable power supply solution for the wide application of AMR.

II. System design objectives

1. high efficiency: the power exchange system should be able to quickly complete battery replacement, minimize the downtime of AMR and improve work efficiency.

2. Security: in the process of battery replacement, the system should have a perfect safety protection mechanism to prevent potential safety hazards such as short circuit, overcharge and overdischarge.

3. Compatibility: the power exchange system needs to be compatible with AMR batteries of different brands and models to meet the diversified demands in the market.

4. intelligent: the system should have intelligent monitoring function to monitor the battery status and remaining power in real time to ensure the efficiency and safety of the battery.

III. System composition

1. Change power station

switching power station is the core part of the whole 48v AMR switching system, which mainly consists of the following parts:

• battery storage area: it is used to store the rechargeable backup battery to ensure that AMR can quickly replace the battery when needed.

• Power Exchange manipulator: automatic equipment is used to complete the disassembly and installation of AMR batteries to ensure efficient and accurate power exchange process.

• Battery charging area: charge the replaced battery to ensure that the battery is always in the best working condition.

2. Battery management system (BMS)

the battery management system monitors the status of the battery, including voltage, temperature, charging status, etc., to ensure that the battery works within a safe range. BMS is also responsible for balanced charging of the battery to prolong the service life of the battery.

the control system realizes the communication between the power exchange station and AMR, directs AMR to automatically enter the power exchange station when the battery needs to be replaced, and coordinates the work of the power exchange manipulator. At the same time, the control system can also upload data through the cloud platform to realize remote monitoring and management.

4. Human-computer interaction interface

the human-computer interaction interface provides operators with friendly operation experience, which facilitates the staff to monitor and manage the working status of the switching power station. At the same time, the interface can display important information such as the charging status and remaining power of the battery.

IV. System workflow

1. AMR arrives at switching station: When the battery power of AMR is lower than the set value, AMR automatically navigates to the switching station.

2. Automatic recognition: the sensor of the power exchange station recognizes the arrival of AMR, and the control system issues an instruction to start the power exchange manipulator.

3. Battery Replacement: the manipulator removes the old battery of AMR and installs the charged new battery to AMR.

4. Status Monitoring: During the battery replacement process, BMS monitors the status of the battery in real time to ensure safety.

5. Charging

6. Complete subsequent tasks: After the power exchange is completed, AMR will continue to perform its tasks to ensure business continuity.