Conclusion First (TL;DR) Establish Identity Before Discussing Data: Every usable “on-chain sensor data” must have provable device identity and measurement accountability. Signature ≠Trustworthy: Only when the signature is bound to hardware root of trust, attestation, immutable timeline, and anti-replay, does the signed data have audit significance. “On-chain” is not just dumping raw data onto … Read more
As chronic disease management gains increasing attention, dynamic blood pressure monitors have become essential tools for daily monitoring and medical diagnosis for hypertension patients. These devices need to continuously record hundreds of blood pressure data points within 24 hours and capture transient blood pressure fluctuations. Their hardware architecture typically consists of a sensor module, a … Read more
In a Linux environment, there are often scenarios for transferring large files. You can use the split command to divide a file into a specified number of chunks, and then use the cat command to merge them back together. This process is simple and reliable. Here are the specific steps: 1. Splitting the File into … Read more
Hello everyone, welcome to <span>LiXin Embedded</span>. The ability to retain data (stored in Flash or EEPROM) after a power failure is a well-known yet crucial topic. Whether due to unexpected power outages or software bugs, carefully preserved data can turn into a pile of garbled information. For instance, losing calibration data might require sending the … Read more
In the wave of smart grid construction, power meters have evolved from traditional measurement tools to data nodes that integrate real-time monitoring, fault diagnosis, and energy management. Their hardware architecture must meet three stringent requirements: millisecond-level data acquisition (for example, harmonic analysis requires sampling tens of thousands of times per second), extreme environmental tolerance (from … Read more
HTTP Message HTTP messages are the basic units of communication in HTTP, which can be divided into HTTP request messages and HTTP response messages. 1. HTTP Request Message HTTP request messages are the data format used by clients to send requests to servers, encompassing various information about the request so that the server can understand … Read more
On May 10, 2024, the Global CRO Council for Bioanalysis (GCC) successfully held the 17th Closed Forum in San Antonio, USA. This forum brought together representatives from international bioanalytical contract research organizations (CROs) to discuss scientific and regulatory issues in the field of bioanalysis. The meeting covered eleven major topics, including integrative bioanalysis, patient-centric sampling, … Read more
In data processing, interface security, and file integrity verification, “hashing” is an essential technology. The built-in hashlib module in Python allows us to perform various hashing algorithms for encryption and verification without the need for third-party libraries. Today, we will delve into the core usage and high-frequency practical applications of <span>hashlib</span>! 🧩 Why Learn <span>hashlib</span> … Read more
1. Introduction In today’s digital age, our lives are surrounded by various information, making information security crucial. Have you ever noticed how passwords are stored on servers when we register accounts online? How can we ensure that the files we download from the internet are exactly the same as those provided by the official source … Read more
When a cancer treatment worth 300,000 yuan is being filled, a 0.5-micron dust particle could lead to the entire batch being scrapped— More precious than gold is the data integrity of cleanrooms. In recent FDA 483 warning letters, 60% involved defects in environmental monitoring data, and PLC systems are becoming the key to solving compliance … Read more