I heard that Samsung also does indoor positioning similar to iBeacon, what s the difference?

The one you are talking about should be the micro-positioning system released by Samsung at the developer conference"Samsung Proximity",Compared with iBeacon,The biggest difference in Proximity is that the mobile phone induction Bluetooth base station is placed at the mobile phone system layer,Not just in the APP layer,So that the BEACON function is no longer too dependent on the APP application。 In fact, the two are quite different, you can go to Lei Feng to take a look, I also read several articles above have written reports on this aspect, and some of the explanations are quite clear, hope!

The answer upstairs is already on the spot,All along,One of the major limitations of Apple's iBeacon is that the base station needs to function in the app,Limited by the difficulty of app promotion,It has also become a reason why ibeacon failed to break out in a short time。 Proximity, which bypasses the app installation limit, will encounter new confusions. This is also an article I wrote from Lei Feng "Samsung P Meat Micro Experience:

Can it really replace Apple's iBeacon? It seems that the author wrote quite thoroughly, I think the giants all point to this aspect, the trend is still there, but how to send it, the first thing is to cooperate, open the market, and then it can be differentiated competition.

The WiFi positioning accuracy is not high, and the stability is not high, so you can consider doing ibeacon for indoor positioning.

No, the original meaning of beacon is beacon, which is a broadcasting protocol based on the Bluetooth Low Energy protocol, and it is also a Bluetooth Low Energy slave device with this protocol.

Beacon works roughly as follows:

The beacon will broadcast a data packet to the surroundings at certain intervals (the interval of the beacon of Tiangong measurement and control is 100 milliseconds), and the nearby mobile phones will receive the data packets broadcast by the beacon at intervals when performing scanning. At the same time, when the host receives the broadcast packet, it indicates which Bluetooth slave MAC address the broadcast packet comes from (each Beacon has a unique MAC address) and the current Received and Transmitted Signal Strength Indicator (RSSI) of the slave device.

The RSSI value is the basis for determining the distance between the phone and the beacon. For example, when a host receives a broadcast packet from a certain Beacon, the broadcast packet comes from a Mac address with D9:A3:

ee:b4:00:

60, a beacon with an RSSI value of -53dBm, is mathematically related and is within 2 meters.

Therefore, as long as there is a mobile phone with Bluetooth, it can generally be used for indoor positioning.

In addition, the beacon hardware of Tiangong measurement and control is based on Apple's ibeacon protocol and is used for indoor positioning services. It is a professional supplier of indoor location solutions in China, and the core technology is Bluetooth Beacon indoor positioning and related Internet of Things products VG01, VG02, TD03, etc., using the indoor positioning algorithm independently developed by Tiangong Measurement and Control.

Android with Bluetooth will also do.

Yes, SkyLab 95Power has launched an iBeacon indoor positioning and navigation solution, and the indoor layout of iBeacon hardware, mobile phone ** related APP can realize indoor meter-level positioning and navigation applications.

iBeacon indoor positioning and navigation solution, micro-energy information is available, large airports, exhibitions, museums Bluetooth navigation, scenic spots Bluetooth technology guide are used.

With the rapid increase of data services and multi-services, people's demand for positioning and navigation is increasing, especially in complex indoor environments, such as airport halls, exhibition halls, warehouses, supermarkets, libraries, underground parking lots, mines and other environments, it is often necessary to determine the location information of mobile terminals or their holders, facilities and items indoors. Therefore,Skylab's Bluetooth location technology came into being.

And there are currently the following options:Bluetooth terminal-side positioning schemeUWB Indoor Positioning SchemeNetwork-side positioning schemeBluetooth beaconBluetooth probes

At present, the application of 95power (Shenzhen micro-energy information) ibeacon in indoor positioning has been relatively common, although the current accuracy of ibeacon Bluetooth positioning and navigation is 2-5 meters, but many ** office building corridor areas, hospital electronic guidance, museum scenic area guidance, underground parking lot reverse car search and other fields generally do not have high accuracy requirements, very applicable. It is one of the more common application fields of iBeacon indoor positioning.

For example, the ibeacon indoor positioning deployed inside 95power can be used for positioning and navigation inside the office building.

The shopping center shopping center is based on WiFi and iBeacon technology collapse mold, mainly through WiFi indoor positioning system, WiFi dynamic location capture, Bluetooth Beacons location perception, WiFi business network browser interception, intelligent advertising information push, APP interactive function, to help shopping centers and consumers complete online and offline communication, to provide shopping centers with accurate promotion of the group slow expansion platform and expand sales channels for merchants.

1. WiFi generally adopts the "nearest neighbor method" to judge, that is, which hotspot or base station is the closest, that is, where the terminal is thought to be located. If there are multiple sources nearby, you can improve the positioning accuracy by triangulation or WiFi fingerprint collection in advance.

2. Bluetooth positioning generally adopts a triangulation positioning method, and the terminal can measure the signal strength where it is located and estimate its location through the signal strength.

3. UWB technology uses the known anchor nodes and bridge nodes that have been deployed in advance to communicate with the newly joined nodes, and uses triangulation or fingerprint positioning to determine the location. (The positioning accuracy is high, the implementation cost is very high, and a special handheld terminal is required.) ）

The indoor positioning system uses more positioning methods, such as WiFi positioning, Bluetooth positioning, and UWB high-precision indoor positioning.

WiFi indoor positioning technology is divided into two kinds, through the wireless signal strength of mobile devices and three wireless network access points, through the differential algorithm, to more accurately triangulate the people and vehicles and record the signal strength of a huge number of location points in advance, and determine the location by comparing the signal strength of the newly added equipment with a database with a huge amount of data. This type of positioning can achieve complex positioning over a wide area, but the maximum accuracy can only reach 2 meters.

Bluetooth positioning technology is a positioning method that realizes positioning through the Bluetooth function of the mobile phone, and this positioning technology requires the deployment of Bluetooth base stations in addition to the Bluetooth module of the mobile phone, which can achieve sub-meter positioning accuracy at the highest level. The advantages of Bluetooth indoor positioning technology are that the device is small in size, short distance, low power consumption, and easy to integrate in mobile devices such as mobile phones. As long as the Bluetooth function of the device is turned on, it will be able to locate it.

Bluetooth transmission is not affected by the line-of-sight, but for complex space environments, the stability of the Bluetooth system is slightly poor, and it is more expensive to be interfered by noise signals and Bluetooth devices and devices.

3.Ultra-wideband indoor positioning personnel management system, which is an emerging wireless technology in recent years, this positioning system, fast transmission speed, low transmission power, strong penetration, strong anti-interference, and can get accurate results, the disadvantage is that the current cost is higher, so as long as the problem of cost is solved, then ultra-wideband positioning technology, in the field of wireless indoor positioning will have a good prospect.

From a technical point of view, whether it is from the perspective of positioning accuracy, security, anti-interference, power consumption, etc., UWB is undoubtedly one of the most ideal industrial indoor positioning technologies. (The picture shows the UWB high-precision indoor positioning bracelet).

WiFi this kind of not to say, talk about the commonly used more, from cheap to expensive, Bluetooth positioning, "acoustic positioning" UWB positioning, Bluetooth is more economical, but the positioning accuracy error range is relatively large, and the amount of deployment is more maintenance is troublesome, sound wave positioning is a new technology, not new, that is, it used to be military technology, now out of the civilian, positioning accuracy within 1 meter, it is an economical solution, UWB accuracy is also within 1 meter, but this technology is still very expensive, If the environment is complex, the margin of error is also large.

There are many ways of indoor positioning system, radar positioning, laser positioning, acoustic positioning, electromagnetic positioning, laser positioning, infrared positioning, etc., positioning technology is to capture the 3dot data of moving objects, and infrared positioning technology can realize the 6dot positioning and capture of objects, such as the flight trajectory and attitude of drones, the use of infrared optical motion capture positioning technology is the most ideal, infrared optical positioning technology.

If it is a simple indoor positioning, we can consider whether it is better to deploy iBeacon or Wi-Fi from the cost, positioning accuracy, universality, and complexity of deployment.

WiFi and Bluetooth are now smart phones have a function, everyone is generally in use, Bluetooth technology has been developing since 94 years, the technology is more mature, stable and reliable, WiFi from 11 years after the smartphone came out slowly popularized.

In terms of short-range wireless communication, Bluetooth has inherent advantages over wifi, so from all aspects, it is more reliable and cost-saving to choose Bluetooth ibeacon for indoor positioning.

If only these two indoor positioning methods are considered, 95power recommends considering the deployment of iBeacon.

Relatively speaking, the accuracy of iBeacon Bluetooth positioning is a little higher than that of WiFi, 95Power Bluetooth indoor positioning, the deployment of iBeacon positioning accuracy is 3-5 meters, and the accuracy is 2 meters when it is good (it is more stable in an unobstructed environment).

Wifi positioning considers that the signal of wifi is not as stable as Bluetooth low energy, so the positioning accuracy is generally in the range of 5-10 meters, and the accuracy is poor. And the power consumption of wifi is much higher than that of BLE and Bluetooth low energy. iBeacon can be powered by a single coin cell battery, but not with wifi devices.

Indoor positioning is still recommended to use E5 Bluetooth beacon positioning The advantages of positioning are: 1. Low cost.

2. Simple deployment.

3. Later maintenance is also easy.

4. Bluetooth technology is more extensive.

You can take a look at the following one**——

The positioning effect is good, the accuracy is 2 meters-3 meters, this accuracy is enough for the hospital electronic guidance, museum scenic area navigation, exhibition hall positioning navigation, etc., 95power's ibeacon indoor positioning is based on its own ibeacon series, Bluetooth positioning algorithm and a complete set of software and hardware systems.