With the development of Internet of Things technology, the use of sensors has increased, and the exploration of smart helmets has undergone many iterations. Xiaobian is often asked in practical work: Can smart helmets support 4G?
At present, most of the smart helmets on the market support SIM cards and 2G/4G transmission, and some merchants have advertised 5G. It can be seen that the implementation of the technology has already landed. Here, Xiao Bian has a curiosity: Is 4G intelligent safety helmet practical in construction sites? Is there any problem when landing?
Xiao Bian has visited many construction sites, 80% the mobile phone signal is very weak, 60% there is almost no signal at the construction site. Under such communication conditions, it is difficult for 4G devices to be connected to the Internet to exert their real effects. In addition to construction sites, many projects are in places where birds do not lay eggs and lack network support. Such as tunnel engineering, hydropower station construction, coal mine, metallurgy, etc.
In practical application, 4G intelligent safety helmet has not only the problem of lack of network, but also the accuracy. Now all emphasize intelligent management. Intelligent hardware is to provide more protection for workers. For example, after workers send out SOS signals, they hope to accurately locate the specific location of workers in the shortest possible time, so as to seize the best time for rescue.
In our daily life, we have used Didi to take a taxi. After each location taxi, the driver usually calls everyone back and asks if the location is accurate. This is the problem of the accuracy of 4G positioning. The deviation is large and not accurate enough.
And we will also find that 4G communication will generate heat quickly during the use of mobile phones. We generally have a short answering time for mobile phones. If we need to answer for a long time, we can use headphones to solve the problem. Safety helmets are compulsory labor protection articles. Workers must wear them all the time at the construction site. If there is fast fever and high temperature, workers cannot wear them for a long time.
Of course, I am not saying that 4G communication is not good. For ordinary people in our daily life, 4G communication positioning is sufficient, convenient and efficient. Only in the project management with high requirements for accuracy and complex project environment, solutions with higher accuracy and faster efficiency are needed. Only by saving costs and improving efficiency can we truly solve the needs of users.

At this time, the intelligent safety helmet supporting UWB technology can give full play to the advantages of its self-built network. Only a few base stations need to be deployed simply to achieve three-dimensional positioning, with accuracy reaching centimeter level. UWB technology has been relatively mature in actual project application, but most intelligent helmets do not support UWB positioning, and most of them still use SIM cards. The new intelligent safety helmet developed by Chengdu Dahui Zhian Technology Co., Ltd. not only supports 2G positioning, but also supports UWB positioning, which can meet the needs of different use environments for the network. The UWB base station used by the builder's intelligent safety helmet developed by Chengdu Dahui Zhian Technology Co., Ltd. has greatly improved the efficiency, which can reduce the cost of network deployment, and the accuracy is far higher than the performance level, achieving a real industry breakthrough.