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Can the car GPS locator be used indoors and underground parking lots?realtime gps tracker online Manufacturing

source:truck tracking webfleet solutions release time:2023-03-25 Hits:     Popular:realtime gps tracker online

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  Can cars be located in some of the poor signals such as parking lots or indoors. The GPS terminal consists of two important modules: the positioning module and communication module. The transmission of all location information is through communication signals. For example, people bring their mobile phones to enter Three floors underground, mobile phones cannot be connected. We know that indoor positioning technology is common in infrared technology, radio frequency recognition technology, ultra -broadband technology, wireless LAN, Bluetooth technology, etc. There are 4 main positioning methods of automobile positioning equipment: GPS positioning, base station positioning, WIFI positioning, Beidou positioning. A small number of manufacturers will use RFID positioning technology, IP positioning, Bluetooth positioning, etc. Are these positioning methods on the car suitable for indoor positioning? Let me analyze them one by one.

  GPS positioning: GPS positioning is the most useful for car positioning equipment. Almost every positioner will have this function. When using the GPS positioner, the use environment is in an open place outdoors. It is better to receive the GPS satellite signal. The indoor expectations should not be too high.

  Base position positioning: When the car enters the area without GPS signals, there are usually other auxiliary positioning positioning -base station positioning, which is one of the reasons why many products are bragged to indoor positioning. The base station positioning can indeed be used indoors, but do you know? The error of the base station positioning is far greater than the error of the GPS positioning. It is usually between dozens to hundreds of meters, sometimes larger, or even more than 1000 meters. Imagine that it is still difficult to find a car in a range of hundreds of meters, especially in the ground underground underground PARKING LOT. In addition, we know that the accuracy of the base station positioning depends on the base station, just like our mobile phone, but if the number of base stations in the service or the location of the vehicle is insufficient, the LBS positioning cannot be performed. There are few signals on mobile phones, so it is conceivable that the positioning of base stations is not very good.

  WiFi positioning: I will not say the principle of WiFi positioning. In short, there must be a wifi signal. There is a WIFI signal in the room, but it is also limited to the town. There are still few WiFi in relatively remote places. In those large parking lots, WiFi signals are less or poor, and it is difficult to be used for positioning. Most importantly, there are few manufacturers positioning with WIFI.

  Beidou Positioning: The principle of Beidou positioning is the same as GPS, but the accuracy is worse. The GPS cannot be used indoors, and Beidou is even more unsuccessful.

  RFID positioning: This is one of the common positioning techniques in the room. Unfortunately, most of them are used to remotely control the door, window, and anti -theft in remote control. It is not really used for positioning.

  Bluetooth positioning: Bluetooth positioning is mainly used in small -scale positioning, such as: single -layer lobby or warehouse. For holding the Bluetooth function mobile terminal device, as long as the Bluetooth function of the device is turned on, the Bluetooth indoor positioning system can judge it. It can be seen that it is not suitable for car positioning, not to mention indoor positioning.


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