## 2 Materials and Methods  
A conceptual diagram of the structure under development consists of a shock recorder that records and stores shock force information and local servers that receive and transmit this information to a central server. A central server collects data on shipments, including cases of impact force exceedances, and allows users to monitor the status and route of shipments via a mobile app. The entire system includes warehouses that know their geographic location and name, and user devices that provide access to information stored on a central server. The intelligent impact detection detector was created using the production of the Espressif ESP32 line. These products are characterized by the fact that there is not only a main processor, but other additional devices, such as I/O, cryptographic, or Wi-Fi peripherals, etc., may already be integrated. ESP32-S3 was chosen to implement the smart shock detector. This was decided because it is up-to-date and has various acceleration devices that enable efficient encryption operations, such as those required for encrypted HTTP (HTTPS--Hypertext Transfer Protocol Secure) communication. It also has specially dedicated logic circuits for SPI (Serial Peripheral Interface), I2C (Inter-Integrated Circuit), and SD/MMC (Secure Digital/MultiMediaCard) protocols for communication with devices. It also has an XTensa LX7 dual-core CPU that can run up to 240 MHz, although one (ESP32 \begin{table}
\begin{tabular}{|c|c|c|c|c|c|} \hline
**ShockWatch 2** & **ShockWatch RFID** & **ShockDot** & **MAG 2000** & **Trans- Monitor TD** \\ \hline
**Do not activate** & & & & & \\
**immediately** & Yes & Yes & No & Yes & Yes \\ \hline
**Sensitivity** & 5–75 g & 5–75 g & 25–100 g & 0.5–20 g & 5–300 g \\ \hline
**Accuracy** & \(\pm\)15\% & \(\pm\)15\% & \(\pm\)15\% & \(\pm\)10\% & \(\pm\)15\% \\ \hline
**Operating temperature** & –25–80 \({}^{\circ}\)C & –25–80 \({}^{\circ}\)C & –25–60 \({}^{\circ}\)C & –20–60 \({}^{\circ}\)C & –73–68 \({}^{\circ}\)C \\ \hline
**Dimensions** & 42.93 mm x 42.9 m x & 42.93 mm x & 96.52 mm x & 63.5 mm x & 16.50 mm x \\  & 6.35 mm & \(\times\)6.35 mm & 96.52 mm & 60.96 mm x 20 mm & 103.12 mm x 96 mm \\ \hline
**Unique identifier** & Yes & Yes & No & No \\ \hline
**RFID** & No & No & No & No \\ \hline
**Records the time when** & & & & & \\
**the impact occurred** & No & No & No & Yes \\ \hline
**Non-disposable** & No & No & Yes & No \\ \hline
**Trigger axes** & 3 & 3 & 2 & 2 & 2 \\ \hline Price EUR (without VAT) & 1.9–2.4 EUR & 2.25–2.43 EUR & 2.16–2.22 EUR & 80.00 EUR & 30–34.15 EUR \\ \hline \end{tabular}
\end{table} 
Table 1: Comparison of impact indicators. S2) would probably be enough. Also, it has an additional ultra-low-cost RISC-V core that can be programmed in C++ and execute RV32 IMC instructions, including input monitoring. When the controller is in sleep mode, it uses only 240 \(\mu\)A, compared to the typical 13 mA to 108 mA, depending on the processor frequency and the additional devices used. Using a Wi-Fi device may require 285-355 mA for sending data and 97 mA for listening, depending on the communication version used and signal strength. After comparing the energy consumption with other models, the ESP32-S3 was chosen as the most optimal variant for the prototype of the developed system. When designing a smart shock detection detector, we aimed for it to have the following features: the recorder can capture and save impact force information; record the impact force in a time interval; transmit information wirelessly; have a screen that displays the tracking number of the shipment and its barcode, and if the impact force is exceeded, the background can turn red; the system has a database that stores the name of the warehouse, the shipment number, and whether the specified impact force was exceeded; and the system has a mobile application in which it is possible to view the information stored in the database in the form of a table and a map.