Today's alarm equipment can be described as dazzling, from the consolidation of its own 'territory' fence to the application of intelligent analysis technology, can be described as the perfect embodiment of the territory. It must be said that anti-theft alarm equipment has been subconsciously divided into 'zone dividers'. With the rapid development of society, although the purses of the masses have been fattened, the incidents of trafficking in children and women have not been effectively contained. Recently, a large number of female college students have been involved in black accidents or missing children. The final result is that the police and parents constantly look for people. The news media constantly reminds the masses, what to pay attention to, and so on, but these are true. Is the only way out? 110. The alarm call is a phone that can be spoken by a child. But it can be said that calling a policeman in front of a gangster knows that it is asking for food. But how to call a safe and effective alarm is what we need to think about. The problem! Xiao Bian searched the Internet for several common anti-theft alarm devices to make a comparison. Child alarm This type of alarm actually triggers the switch when the child is in danger. It generates an 80-90 dB alarm sound. Although the sound is enough to attract the attention of the people around, but some bears and children have to say, nothing is played. ... just to look better than anyone else, whose voice is louder... Portable remote alarm In Xiaobian see this alarm, instantly feel tall: remote control, emergency and other functions, this looks like Xiaobian pursuit of alarm, but then the following parameters let Xiaobian feel pain do not love: the alarm distance (empty 200 meters! Not to mention the water removal, in today's cities, low-power wireless signals under the 'blow' of various types of signals, plus the walls, windows and other items under the barrier, if the complex point of the area, there can be How many meters of controllable range? Female anti-wolf alarm It sounds like an alarm device that people have to watch out for. In the words of the manufacturer, if you press the button, you can instantly send a sound of 130 decibels.... Xiao Bian tells you what the concept of 130 decibels is. When the fighter takes off, you are 40-50 meters away from him and you can enjoy 130 decibels of special effects. Xiao Bian in the face of this product, can only say that the enemy killed 8,000, since the loss of 10,000 ... ... GPS GPS positioning system technology is a relatively good technology. Wherever you go, you can see clearly. It can be said that if the missing children or women carry the GPS positioning system with them and the support of the relevant technical units, the police can speed up the detection of cases. The above are some portable alarm systems sold by electronic malls. It can be seen that the current portable alarm system is still dominated by acousto-optic systems. Such alarm devices may be effective for some random robbery, but for people with premeditated plans, What is the utility of the sound? The sound and light alarm will cause the alarm person to be subjected to more brutal harm? Have these companies taken into consideration? There is no way to conceal alarms, but it does not provoke violence from the other side. If you look at the current market, it seems that only a GPS positioning system can carry alarms. Some people may talk about mobile phones, but also because they have often seen Apple users locate a mobile phone according to a unique code and lock the phone's position. But is this really useful? Xiao Bian made a check on certain characteristics of the cell phone. 1. When the mobile phone starts up, the screen must be turned on, and the light will cause the robbers to pay attention; 2. Since a large number of mobile phones currently use full touch screens, in order to avoid being discovered, only the memory dialing rate is high, and the error rate is high. 3. Are you sure you have started positioning? 4. The current mobile phone positioning is only range-oriented and does not have a specific location. The error is large; 5. As a widely used device, mobile phones must be searched first. These above are enough to prove that the mobile phone does not have a GPS positioning system in the alarm device. If the GPS positioning system is modified to a modified product and has an alarm button, it is believed that there will not be too many people's attention and no sound, light, etc. will be generated during the alarm. 3-Axis Dro,3-Axis Dro for Lathe Machine,Dro 3-Axis Digital Read Out,3 Axis Lathe Sino Dro WEISS MACHINERY CO., LTD. , https://www.weissmachinery.com
Does the portable alarm really apply?
With the current occurrence of various types of women and children being abducted or killed, alarm equipment has entered a booming stage. However, does the current alarm equipment really apply to emergencies?