Repeated outbreaks have rung the alarm bell

Recently, locally confirmed COVID-19 cases have been reported in many places. As of 10 PM On November 24, 19 cases had been confirmed in 31 provinces, autonomous regions and municipalities directly under the Central Government, including nine in Tianjin, seven in Shanghai, two in Inner Mongolia and one in Anhui. At the same time, the situation overseas is on the rise. In Europe, for example, Spain, France, the Czech Republic, Germany, the United Kingdom and other countries are experiencing a rapid increase in new cases. In the Americas, for other reasons, progress has been limited. The seasons in Europe are similar to those in Asia, and as winter approaches, we can't help but sound the alarm when recalling what we went through last winter.

Take a look at what experts have to say:

The University of Washington in the United States has warned that the coronavirus outbreak will get worse this winter. The University of Washington's Institute for Health Metrics and Evaluation (IHME) predicts that the Northern Hemisphere will face more severe COVID-19 outbreaks during the coming winter. The predictions are daunting, and December will be a tough test for Europe, Central Asia and the United States.

Zhang Wenhong: The second wave is inevitable. In China, people have been asking whether there will be a second wave of the epidemic this winter. In principle, this outbreak will continue for quite a long time, so one year should be the minimum limit.

How to take epidemic prevention and control measures

In general, although we should not be careless, there is no need to worry too much.

In terms of prevention and control, the main problems in the early stage were lack of understanding of the characteristics of the virus and the shortage of medical resources. Now there is no such problem, as all departments have long been ready and medical resources are relatively sufficient.

From the point of view of protection means: Adequate preparation of epidemic materials. In the early days of the outbreak, epidemic materials were in short supply. At that time, there were orders for masks, delayed delivery, and the price increased by dozens of times. There were also a series of related epidemic supplies, such as oximeters, ventilators, thermal imagers, etc., which were in short supply at that time.

The sharp fluctuations in market demand are due to lack of preparation. At this stage, with a better understanding of the Novel Coronavirus and certain conditions for our preparation in advance, the possibility of sharp fluctuations in market demand can be reduced. At present, all kinds of temperature measuring equipment, there will be a very large market. Even huawei's mate40 series of high-end models, which we are very proud of, are equipped with temperature measurement technology (early in the outbreak, I also predicted that temperature measurement technology would be applied to smartphones).

Ear temperature gun, forehead temperature gun, thermometer, etc. : at present, most of the demand is still in the unit level, the market increment of family level demand has a larger market demand.

Thermal imager, etc. : temperature measurement equipment installation in a large number of public facilities, such as buses, residential buildings, enterprise buildings, such as the entrance gate installation of rapid temperature recognition equipment.

In this kind of equipment, there are some components related application knowledge, share as follows:

Most portable devices are powered by dry batteries or rechargeable single lithium batteries. The power supply voltage range of one dry battery is 0.9-1.6V, and that of two dry batteries is 1.8-3.2V. In order to make the device have longer endurance, an ultra-low power boost chip will be added at the front end of the system, so that the battery will provide a stable 3.6V to the system under the range of 0.9-3.3V, and then the LDO step-down voltage will be used to MCU. Thermopile and other circuit power supply.

If the rechargeable lithium battery is used as the system power supply, it is necessary to apply the charging chip to charge the lithium battery, and its application principle diagram is as follows:

For non-mobile equipment such as thermal imager, its power supply source is 220V mains converted to 24V, and on buses it is connected to car level, 12V/24V/48V/96V, etc. All kinds of internal circuits of the equipment need low voltage power supply, which needs to be applied to the buck chip to convert the input high voltage into low voltage to supply power to each circuit.

Scientic inductor focuses on providing high-quality magnetic power components, which are widely used in many terminal fields. In special periods, we will give priority to support protest materials. Since the outbreak of the epidemic, so many ordinary people moved deeds, let us trisolaran people also make a modest contribution, all the protest materials needed inductance samples, free of charge.

I hope the epidemic will end soon and we will have a good time together!

For more detailed information about terminal applications, please pay attention to the Official wechat account of Scientic or consult the Marketing Department: zhaowenqing@scientic.cn