1, the scene is achieved by covering what technology?
Digital scene recognition technology through the line collectors scene signal information acquisition, including but not limited to the common positioning signals outside the wireless network, the geomagnetism, the base station information, collected data is authorized users through legal data by the scene signals match, indoor location identification information of the subscriber line, in order to achieve indoor positioning accuracy.
2, a collection point is, whether you say POI point?
In GIS, a POI points can be a house, a shop, a mailbox, a bus station. The location, space, may constitutes a point POI by one or more collection points.
3, how to ensure the accuracy of the information line at collection?
Digital Operations Center has a professional team responsible for managing the front-end recursion, including front-end collection training, quality control and collection tasks such as process management approval.
About signal acquisition update, digital has specialized signal monitoring algorithm to monitor a particular scene (such as shopping malls) will remain six months a more rhythm re-mining; In addition, the signal we will return through have been working client signal supplement, to a certain extent continuation signal life, to ensure positioning accuracy.
4, has covered the POI is what order of magnitude?
Has covered nearly 250 cities, 80% of the urban population and 900 million Internet users in the country, we have covered the basic needs of the global total of 93 scene types of trades; now covers about 40 million POI points.
5, digital indoor positioning and location-based services LBS common What is the difference?
LBS is the base station location, is used to calculate the location of the device where the base station signal by comparing the difference, usually to the location of the base station is located, rather than where the location of the device, location accuracy between 500-5 m.
Digital indoor positioning clutter signals collected by a space, indoor positioning using a proprietary digital signal analysis algorithm, to achieve precise positioning device, the positioning accuracy between 5-10 meters.
6, and contrast Baidu room, in addition to covering the outer positioning technologies What is the difference?
Baidu indoor positioning primarily by laying device (Wi-Fi probe, the base station apparatus) achieved, is limited by the efficiency and cost recurrence, subject to further check the positioning effect; digital technique is achieved by positioning the device without positioning algorithm, positioning error of about 3-5 meters, and the effect has been verified through the market.
7, the essential difference between digital scene recognition technology and probe technology?
Digital scene recognition technology is a scene signal information collected through the line collecting the art, including common positioning signals outside the wireless network, the geomagnetism, the base station and other information, that the data is authorized users through legitimate data, by matching the scene signal, identifying the user indoor location information at the line. And probe technology, is disposed through the probe device online, mac information acquired range of the radiation reaching the individual user, and the acquired data needs to be matched in a third database imei to achieve its data value. And the probe grab a large range, it is impossible to accurately distinguish indoor and outdoor.
8. What digital indoor positioning principle?
By clutter signals collection space, comprising wifi signal, the base station signal, a geomagnetic signal, light signal or the like. Indoor positioning using a proprietary algorithm to analyze the signal digital, achieve precise positioning.
9, how about positioning accuracy?
Only different from the traditional positioning technology to locate the street, have a higher level of digital positioning technology, its accuracy can identify the user to the shop scene.
10. What is the three digit number? Request parameter priority is what?
Digital three indoor positioning is the foundation of digital technology can be achieved, including device information, signal information, and other information. WIFI in which information is the most important information, mac address and user device identification is the basis for drawing portraits. Digital clutter space use positioning technology, the transmission of longitude and latitude, base station, Bluetooth, geomagnetism signal will further improve the positioning accuracy.
11, how to distinguish between different floors?
POI collection process, each signal will POI feature point identification floor; the list of Wi-Fi signal is distinguished primarily by locating floor request data signal strength parameter identification, and supplemented by other signals to increase the floor space clutter precise identification degree.
12, Wi-Fi signal is weak or no Wi-Fi signal time is how to achieve localization?
If the scene within the Wi-Fi signal is weak, digital positioning algorithm for accurate positioning parameters based on signal strength (RSSI) signal in the request list, so positioning will not have a serious impact; but if no Wi-Fi signal, you can not indoor positioning.
13, concerns about the security of data sources, is legal data? You will not disclose user privacy?
First Digital Scene Recognition SDK to start the service, checks the integration of APP have no access to relevant user privileges, if there is data to send back to normal, if not start the Service services. Thus, digital data acquisition are legitimate authorized users to the App data.
Second, the data is encrypted in transit, that is to say digital library data have been desensitization process irreversible, and comply with the relevant standard method of network security, user data collected without the user's personal characteristics, and in the contract other provisions will not use the library, so the number of bits will not disclose user privacy.
14, which has several access methods?
Currently available API, SDK both types of access.
15, why Android and IOS positioning capabilities differ?
Digital positioning technology by obtaining a list of WIFI, using an algorithm of the plurality of cooperative signal processing, to calculate the exact position. Because IOS system itself limit, WIFI IOS device can not obtain a list, but to use a single mac positioning, positioning capabilities and therefore different compared to Android devices.
https://cloud.papakaka.com/flash/#/dashboard a digital access key positioning capability, the wheel made to avoid duplication.
