VeChain’s Tech Deep Dive Series – Session 1, Episode 2: Embedded System Introduction

First, before talking about the non-chain embedded system, Let me explain the basics I divided the non-chain hardware products by 3+1 What is 3+1? 3 means 3 product lines The first line is passive components such as near field communications and RFID components. The second line is the active part, the cold chain sensor that we already have, And it's an active part like a bluetooth device sensor device The third product line is the secure ID, which is part of the personal ID. I will explain more in detail later in this section. For 3+1, the part of "1" is very important. For traditional manufacturers, it wasn't difficult to do something in the lab. But it is questionable whether they can bring it to mass production. VeChain has done a lot of work in this area to ensure this The first is production. This means our products can be mass produced. The second important point is the quality assurance section. Sunny: So MP means mass production. QA stands for quality assurance Speaking of this, in fact, VeChain has been working a lot in this regard.

I can also share the development process of various hardware or embedded products. The process is very complicated Through this picture I will explain it simply so that everyone can understand it intuitively. Sunny: When looking at small things like chips or sensors There are also complex methods or processes to support it. Yes, I will tell you briefly here. When product ideas are born, we start with industrial design, Then we will execute the mechanical design For example, here are some products, These are mechanical design, industrial design, and so on.

At the same time, we have the electrical circuit design and We will do the PCB (Printed Circuit Board) design This is the hardware wallet that our steering committee will use in the future. In fact, the steering committee already has this. Yes. All right, this is just the beginning. After hardware schematic design and mechanical design are completed A series of processes begins. The first step is the PCB layout design. At the same time start tooling. There are two forms of tooling. The first type uses the CNC format at an early stage. There are other types as well. You can start tooling yourself. We have different designs for different products. In the meantime, we will start planning a purchase for each required part. When we make a product, We need to know the smallest details of component selection. Since there are so many components on this board, We want to make sure that every product has a source of purchase. They should be available for purchase and we need to make sure they are of good quality. We, of course, have to consider the volume when mass-produced. Yes, next we produce PCBs and Printed Circuit Board Assembly (PCBA).

PCBA is a PCB with assembled components. Then do the mechanical assembly and At the same time, we make the mold. After completing the above steps Performs various debugging tasks such as software coding and hardware debugging. Regarding mechanical engineering, we are committed to ensuring that our products work in different environments. Barrel test, drop test, mini drop test, Such as ball impact test, temperature cycle test, etc. We will do many reliability tests. Sunny: Yes. Important point Our software validation checks electrical equipment It is also a functional test of the software that can be tested at the same time.

For example, an ESD test, As you may know, electrostatic discharge (ESD) tests are susceptible to ESD, especially in winter. Sunny: Yes. Wearing a sweater is prone to static electricity. And at this time, We must ensure that our products are not affected by this kind of damage. Sunny: I remember when we were dealing with customers. Yes. What to consider when making a product, You need to think about the environment in which your customers or companies will use the product. The environment can be very different. Jianliang: That's correct. When we do projects on luxury luxury goods, We used to take into account the pressure and temperature the products had to withstand. These environmental factors have always been considered. Jianliang: We also have extrusion and mechanical testing within Even by performing various tests such as liquid immersion Our products, such as near field communication cards, It will allow it to function normally in a humid environment.

Sunny: I see. When we received this product, It will be certified by a third-party accreditation laboratory. More on this later. This course includes industrial design for electrical performance testing, We usually call it Design Review (DR). Typically, hardware products go through DR twice. For example, prototype, pilot, and even mass production are modeled. As you can see, the product goes through several stages in the design process.

Sunny: That's right. We are committed to ensuring that our customers get a workable and reliable product. You need to make sure that the whole process is manageable. Sunny: I also know that this is what the companies we work with I believe this is why it is a relatively large company. Jianliang: Yes. When they look at our product, Blockchain is actually just a part of it. Jianliang: That's right. The final solution would have to consider all aspects of the problem. Jianliang: Yes, that's right. So overall, I think the most important word that concludes all of this is "professionalism." Jianliang: In this part I will talk about ViChain's ability to develop embedded systems. Before going deeper, Bechain is currently in the embedded field with more than 10 years of experience.

I would like to tell you that we have 5 engineers. Some are focused on software, some are focused on hardware, Some engineers may develop both hardware and software. Of course, as I said earlier, I have 18 years of experience in this industry. So our technical skills are really very strong. All products to be sold from VeChain In fact, we design and build ourselves.

Including mechanical design, schematic, and PCB design Even soldering is made with our own hands. Sunny: Of course. What I've been talking about so far is only the hardware part. About software development We have more than 3 engineers dedicated to software development, They are dedicated solely to software development corresponding to existing hardware solutions. The software has many microcontroller units (MCUs) including 8-bit, 16-bit and 32-bit. Our engineers have a lot of experience in this field. In terms of hardware, software, and mechanics As already mentioned, VeChain has a strong product mass production capacity and We have quality control ability. An additional point to mention Two documents are enclosed with delivery of any of our products. The first document is our product specification. This specification document describes the types of products and how to use them. The second document is the quality report.

The quality report is divided into two parts. The first is an internal self-test report. The second part is a report from our third party accreditation lab. The reason we do this Because we are responsible for our customers and society. So when we look at this material, I have written by a third accredited laboratory I would like to use data from a compliance report. Sunny: Yes, that's right. Let me give you two examples. The first example is the frequency band of the radio. It is known that the frequency bands are different in Europe and the United States. Sunny: Yes. Taking RFID as an example, The European operating frequency band is 865.6-867.6 MHz, but The operating frequency band in the United States is 902-928 MHz. And if you're selling in Europe, selling 900 MHz would definitely be a violation. Sunny: That's right. In this case, VeChain will recommend different products to different customers Sunny: Yes, that's right. At the same time, these products comply with local laws and regulations.

Sunny: Right. This is a required specification. The second point is because our hardware products are real products, Their materials have to meet environmental protection requirements. Sunny: Yes. When VeChain launches a product, ROHS (Restriction on Hazardous Substances Directive) and REACH in third-party laboratories Standard certification. ROHS is an essential criterion REACH is a voluntary standard. However, VeChain will receive both of these authentications.

So, the products you see here are made to exceed the standard requirements. Sunny: Yes, and different countries and regions have different requirements. Jianliang: Yes. Sunny: Other industrial customers like large corporations They will consider this issue based on their reputation. They also have new and higher requirements for the environment. Or it's worth considering to protect the environment. Jianliang: If you look at these products, you can see our report. OK, now I am very proud to introduce you to the software features currently available. Because, this part is very important. In the case of software parts, we look at the passive and active aspects. Some of the software features are passive, such as near field communication or RFID. Standard specifications are listed here, SO/IEC 14443, ISO/IEC 15693, ISO/IEC 18092, and ISO/IEC 7816 are standard specifications.

I have been in this industry since 2002. I wrote this protocol source code myself. For the entire protocol stack, VeChain has exclusive rights, I applied for a software copyright. At the same time, everyone sees that there is not just a short-range wireless communication protocol. We also have a protocol stack for RFID, ISO18000-63. The software protocol and software algorithm for this part were coded by us. So we do not only have hardware products I have a deep knowledge of software, A lot of effort has been put into these areas. Sunny: This is also a Wouldn't it be the result of your work experience. Jianliang: That's right. On behalf of the community, I would like to ask you a question. For this part of the software code, Will more community participants directly access or use it in the future? Jianliang: Yes, our goal is to expand the VeChain ecosystem Sunny: Yes. We prefer to get more people involved. We can communicate more, so they can use the hardware You can share this code with members of the community. Sunny: Or maybe we can do more secondary development. Jianliang: Right. Then, more interesting developments will be made in different industries and different application scenarios.

Jianliang: Yes, so far, it was about NFC and RFID, In fact, there are two more parts. One is our active device. Active devices are, for example, temperature and humidity sensors, encryption algorithms, And algorithms used in computing, etc. These are actually based on our own codebase. Especially in the traditional Internet of Things (IoT) It is known that there is no encryption algorithm or the data has not been processed Therefore, BeChain's encryption algorithm is It is integrated into existing IoT devices. VeChain has done a lot of work on cryptographic algorithms. There is Crypto Core, a library of cryptographic algorithms. Actually, this cryptographic algorithm library Different languages ​​used on the PC, It also applies to various languages ​​used in embedded CPUs such as 8-bit, 16-bit and 32-bit systems.

We have a library of cryptographic algorithms corresponding to these. Libraries of these cryptographic algorithms are integrated and It can be applied to other platforms. Sunny: This is very important. Because so far we have been talking about the traditional Internet of Things. In fact, this is a viable thing, so we need to do it first. Jianliang: Yes. However, considering this as a matter of future transactions between entities, Especially in digital assets and security issues, especially in cryptographic protocols. This becomes a very important issue. Jianliang: Yes. This is exactly what we talked about at the beginning of the discussion. This is the path we must take, These are the things we need to prepare. Jianliang: Vechain products fall into three categories according to the working distance. The first category is, These products have a working distance of less than 1 meter. We define it as NFC or RFID, ISO14443, ISO15693 NFC and ISO18000-6C RFID. The second category is, These products have a working distance of less than 1km.

It is defined as an LPLAN type such as Bluetooth, Wi-Fi, Sub 1G, and LORA. The third category is Products with a working distance of more than 1km 5C NB-IoT, eMTC, etc. GPS mainly focuses on positioning functions. It is a receive-only function that performs. Next Episode: RFID Technology and Deployment.

You May Also Like