• March 02, 2024

According to relevant statistics, the number of casualties caused by safety accidents in coal mines is at the forefront of safety accidents in the country. The tunnels under the mine are complex and there are many difficulties in carrying out rescue work. At the same time, the management of personnel underground in coal mines is different from the management on the ground. On the one hand, the positioning of personnel underground is limited by the tunnel, so many personnel positioning technologies cannot be realized; on the other hand, the personnel positioning technology underground requires higher anti-interference. . When an accident occurs underground in a coal mine, the most commonly used search and rescue method is infrared detectors. The principle of using infrared detectors is to detect the infrared radiation emitted by the human body to achieve the purpose of positioning and rescue. However, due to the lack of safety measures in coal mines, The presence of gas will cause the infrared propagation to weaken, and it is also susceptible to interference from other infrared heat sources underground, making it less efficient in actual use. In addition to infrared detectors, life detectors are also commonly used. They mainly detect the ultra-low frequency waves emitted by the human heart to locate people. Microwaves have strong penetrability, but they can also detect some people with weak heart beats. some problems. Under this situation, a device capable of real-time positioning has been developed for underground coal mine personnel. It can be used to solve the daily management of personnel and improve labor efficiency during normal work; when an accident occurs, this device can be used to promptly locate Trapped personnel are located. This article proposes a locating device for underground personnel based on RFID technology, hereafter referred to as the RFID rescue locating device. This device can be worn and is small in size, and can be used as a necessary component of underground rescue work. 1 Overall system design 1.1 Design requirements analysis Before designing the RFID rescue positioning device, it is necessary to analyze the positioning needs and technical characteristics of underground coal mine personnel. Finally, a detailed system design can be made. After detailed analysis, 3 requirements must be met: (1) Comes with its own power supply and has long working hours Considering the underground The length of time personnel work in normal work and the timeliness of rescue operations performance, so the system must be able to work for more than 48 hours; Abstract: Due to the complex underground environment and the application of infrared detection and life detection instruments, safety rescue in coal mines is subject to many problems. Limitation, the development of an underground personnel positioning device for coal mine rescue plays a very important role. proposed a method based on RFID technology Based on the analysis of the needs of c...

• March 02, 2024

Application of RFID electronic tags in preventing express delivery loss As the shopping method chosen by most people today, online shopping has the following advantages: items A wide variety of products, affordable prices, and door-to-door delivery—this has given rise to a thriving express delivery industry. business, but there is also a major problem: lost items. Waiting for you to unpack with joy When it was wrapped, it was lying in a corner that no one knew about, and it might become a surprise for others. I asked the courier company but I could only get a drop in the bucket in compensation, and the courier who sent the package could still get it. Can be fired. Based on these facts, in order to solve this major problem in the distribution process question, our team believes that bundling RFID tags with packages during the delivery process is Very necessary. 1. Background analysis. After our survey, 69.12% of people have experienced lost items. How to find them? Only 53.16% of people, which shows that lost items are a very common phenomenon, solve this problem The problem is imminent. According to our questionnaire survey, most people think that lost items The reason lies with the courier. The job of a courier is usually to deliver goods to your door. During the period of door-to-door delivery, If the express vehicle is left unattended, it may cause the express to be lost; when the express vehicle is driving, In order to deliver a few more items, some staff moved the courier in an unsafe way. placement, creating opportunities for the express to be lost; during the investigation, we also found that this Similar phenomenon: Because the express company does not have a screening mechanism when selecting people, the number of people recruited is People are all mixed, and some employees feel that they deserve more pay for their labor, so When he saw valuables during delivery, he chose to steal them and ran away, which made many Many consumers’ items have disappeared and are nowhere to be found. Starting January 1, 2021 Article 832 of the implemented Civil Code stipulates that the carrier shall not liability for damage or loss of goods; the amount of compensation for damage or loss of goods shall be If the parties have an agreement, the agreement shall prevail; if there is no agreement or the agreement is unclear, the delivery shall be followed. Or the market price at the place where the goods arrive when they should be delivered is calculated. Therefore, as mentioned above And, even if we consumers do not purchase insurance, we can prove that the lost items were sent. Value, you can also enjoy compensation close to the original price. 2. Application of RFID electronic tags. (1) The necessity of RFID electronic tags. In recent years, with the rapid development of logistics, Many logistics and distribution companies have publicly expressed the impact of using RFID technology on the company's development. Very promising. Because it has been proven throu...