Who's strong to protect bear children? 5 Child safety positioning products Comparison evaluation

Since the release of 360 child guards, the market has also followed the emergence of a variety of similar flagship child safety positioning products. Although the author does not answer the excavator technology which strong such a problem. However, as an intelligent hardware enthusiasts, has been fortunate enough to collect a few of the market's more popular children's safety positioning products. There are 360 child Guards 2, Ami-cho 01, lost, Weino Wk-pug D1, close to a total of 5 products. The author of these five products are evaluated separately, are written to let us compare. Although not as easy as the King "Professional", but definitely more than his fair. First, the price comparison is the most important price, because the positioning products need real-time upload location data, send SOS signal, etc., so need to use operator network, some products in the sale with a SIM card, and some need to buy their own. So in contrast to the price, the author distinguishes between the price of hardware products and carrier package price. Through the above table can be very intuitive to see the price of each product, which cannot be lost in the pricing strategy is confusing, different product package fee included in the service is not the same, the following have to elaborate. 360 Child Guardian 2: The built-in mobile SIM card, 90 yuan per year package fee, this 90 yuan includes all the traffic and SMS costs required for the watch, no need to pay other fees. lost: There is no distinction between the hardware and package prices, the 1th year's total cost is 449 yuan, starting from the 2nd year 365 of the service charge, the package to send 10 minutes per month call, 20M flow, the excess of the section, the call fee of 0.36 yuan/minute, traffic costs 0.12 yuan/minute. Weino Wk-pug D1: Shipped with a China Mobile card, 5 yuan per month package fee, including 30M traffic. Looks like the package is cheaper, but Pug SOS alerts and low power prompts are sent to the mobile phone by SMS, SMS costs need to bear their own. Summary: 360 child defender 2 of the hardware costs are the cheapest, the package fee includes all the costs of the product, do not need to pay additional fees, and package fees can be directly in the app payment, more convenient. Second, the appearance of the second as a child wearing equipment, appearance and volume, weight is very important, if too big, too heavy, children wear will be very uncomfortable, and not beautiful words, it will be difficult to accept children. Although parents can use a variety of ways to allow children to accept, but since it is a need for children to wear the product at all times, or let the children willingly, and even rob the Dai Cai best. Product Size List 360 Child defender 2: The watch looks just as small as a regular electronic watch, with "Peppermint green", "Lemon Yellow", "Starry Blue" and "Strawberry Red" in 4 colors, very fresh. Screen for the segment of the LCD screen, the screen shows the time and date, the bottom shows the small red flowers (parents reward to children) and pedometer. In order to meet the needs of children's beauty, but also with the package with a lovely cartoon screen stickers. The fuselage has 2 buttons on the side and two buttons for integrated design.The strap is food grade silicone rubber and is comfortable and safe to wear on the arm. Can not be lost: Lost pink, light green, black 3 colors. Screen for 0.96-inch OLED screen, the screen can display time, date, week, electricity, signal strength, etc., in the GPS positioning will also have a corresponding display. The watch has only 1 buttons, short press display time, long press Guardian number, and a shutdown key hidden under the dust cover. Can not lose the case for plastic, strap for low sensitive silica gel material, the dial is square, wear on the arm appears relatively large. KT01-cho: yellow, green, pink, blue 4 colors, screen for 0.64-inch OLED screen, you can show the power, time, signal strength, the screen a little reflective, it is difficult to see outside. There are 5 buttons on the side of the fuselage. Strap for low-sensitive silicone, design a number of ill-conceived places, the two sides of the radian can not be adjusted, slightly thicker wrist some children wear will be very uncomfortable. Weino Wk-pug D1:pug's fuselage is like a small piece of soap, only 1 colors of white, with a more textured hand. The pug does not have a screen, there are 1 buttons on the front of the fuselage, and the buttons are led. The protruding part on the back is the magic hole, through which we can bind the pug to the child's schoolbag or clothes, and the firmness remains to be examined. Pug fuselage relative to other products is relatively large, carry relatively difficult. Pro-Search: By the core "small white box" and the strap composition, the small white box into the strap is a complete pro-looking watch, table with blue, pink, yellow 3 colors, the screen is the LED welded by the 8 segment of digital tube, the following has a button, press can show time, due to too bright, so do not buckle on the strap at all to see the time. The intimate strap is also a low sensitive silicone, but it smells bigger, and the pug is the biggest except for the clips, and the strap is the form of a heavy arm. Summary: 360 Child Guards 2 size is also the smallest, after the children measured wear on the arm is also the most comfortable. In appearance, it is also obvious that there are four kinds of colors, but also contains a variety of stickers of the 360 child defender 2 welcomed by children. Third, the function of comparison can be timely and accurate access to the location of equipment, such children should be the core function of safety positioning products. In addition, SOS Alarm, listening to the surrounding sound is also very important. Some devices also have to view the history of the track, Bluetooth accompanying, electronic fences, Jibu and other functions. Here I also sorted out a list of the functions of each product, we can be very intuitive contrast. Positioning function is the core function of all products, common positioning principle has three kinds: GPS, Wi-Fi, base station, the error is a few meters, dozens of meters, hundreds of meters. There are two ways to initiate positioning, the first is to automatically locate and report the location of the device at intervals, and the second is to manually initiate positioning instructions on the app, and then locate and upload the location points immediately after the device has received the instructions. Here's a look at the positioning experience of these products. 360 Child defender 2: by GPs, Wi-Fi, base station and heavyForce sensor four reposition, indoor Wi-Fi and base station positioning, error of 30 meters, outdoor GPS positioning, error of 5 meters, gravity sensors can be used to correct drift. 360 Child Defender 2 is the only one of these products with Wi-Fi positioning, in the city often do not receive GPS signals, and Wi-Fi everywhere is, so Wi-Fi positioning is still very necessary, relative base station positioning is also accurate a lot. 360 Child defender 2 can be automatically positioned, or can manually initiate positioning. Automatic positioning frequency is high, ordinary, low three, positioning frequency lower more power, each file positioning interval is not fixed, clouds will be intelligent analysis of watches daily production trajectory point law, distribution of scientific positioning program. Click on app's tracking babe to manually initiate a location and return the location point to the map. The location point of the bubble shows the address, time, power information, positioning type, the security area of the point is blue, the point of the unsecured zone is red. lost: Through the GPS and base station positioning, the watch will regularly upload location information, time interval can not be adjusted, not manually launched positioning. In the lost matching app can only see the GPS point, do not see the base site, the official said because the base site is not accurate, so filtered out. This experience is very bad, if the watch has no GPS signal, then the day will not show the location point, even if the parents want to know the approximate position of the watch is not a way. Apache KT 01: Through GPS and base station positioning, the watch can be automatically positioned, can also manually initiate positioning, automatic positioning of the time interval can be set to 3 minutes, 5 minutes, 10 minutes, 20 minutes, 30 minutes. Apache can manually launch positioning, but each launch a position need to send a text message, the Watch positioning success will send back a position text message to the phone, rather than the position directly displayed on the map, you can use the browser to open the view. Weino Wk-pug D1: Through GPS and base station positioning, the watch will regularly upload location information, can not manually initiate positioning. The time interval for automatic positioning can be set to 1 minutes, 15 minutes, 2 hours. Pro-Search: Positioning through the base station, the watch can be automatically positioned, can also manually initiate positioning, automatic positioning of the time interval can be set to 3 minutes, 5 minutes, 10 minutes, 20 minutes, 30 minutes. Summary: The above positioning screenshots are obtained in the author's home, you can see 360 child Guardian 2 of the most accurate positioning, in the indoor error of not more than 20 meters, and the location of the intelligent integration of points. Not to lose and pug can not manually initiate positioning, the Apache manual positioning results returned via SMS, inconvenient to view. After a series of comparative analysis, comprehensive price, appearance, function, or 360 child defender 2 to be raised. For example, at present all such positioning products the biggest difficulty is in the indoor positioning. Because the indoor cannot receive the error small GPS signal, may use only the mainstream only then the base station localization. and the base station location error is quite large, and it is easy toCause positioning drift. 360 Child defender 2 spent the most effort to solve this indoor positioning problem. The 360 Child Defender 2 provides GPS, base station positioning, WiFi location and gravity sensor four modes, where the base station can be used for positioning and WiFi positioning. and can use gravity induction to avoid the phenomenon of positioning drift. The author thinks that because of the defect of base station location, the indoor positioning error is too large, and the products other than 360 child defender 2 can not even reach the practical level. Again, app, not all kinds of complex or practical, or impractical features. At present, there are only 360 child guards and 2 pro-and-seek to be able to upload information at regular intervals, but also to initiate positioning and real-time display on the map. Some products do not support the initiative to launch positioning, there are some products can only use SMS to inform the baby's real-time location. However, because only the base station positioning, positioning accuracy is not high. Coupled with the price, appearance and so on all kinds of elements, the author can very responsibly say that currently only 360 child defender 2 is worth buying. Other products at least to solve the problem of indoor positioning accuracy and can not real-time display on the map active positioning problem, can be regarded as a practical standard products.