The present invention provides a GPS and radio frequency technology-based hybrid location method, which comprises the steps of establishing an RSSI fingerprint database based on the coordinate information of collecting points in the storage region of a server in a global coordinate system; sending and mixing GPS signals and radio frequency signals by a terminal sensor through wireless access points within the storage region, and then transmitting the signals to the server by a main sensor; converting the location data of the GPS signals and the radio frequency signals into the information of the global coordinate system by the server; receiving the coordinate querying requests of novel electronic tags entering the region by the main sensor to locate the electronic tags through selecting one type of signals according to the signal intensities of the GPS signals and the radio frequency signals, then invoking the coordinate information of the server and sending the coordinate information to the terminal sensor. According to the technical scheme of the invention, hybrid signals of GPS signals and radio frequency signals are adopted to realize the location. When the signal intensity of one type of signals among the GPS signals and the radio frequency signals is large enough, the type of signals is automatically selected to realize the location purpose. Therefore, the location operation is quick and accurate in effect.

GPS and radio frequency technology-based hybrid location method

The invention reveals a hybrid location method based on the Beidou satellite and radio frequency, and the method comprises the following specific steps: obtaining the position data of a Beidou satellite signal and a radio frequency signal, and respectively converting the position data into coordinate information in a global coordinate system; judging the intensity of the Beidou satellite signal and the intensity of the radio frequency signal, and employing the Beidou satellite signal for positioning if the intensity of the Beidou satellite signal is greater than the intensity of the radio frequency signal; or employing the radio frequency signal for positioning if the intensity of the radio frequency signal is greater than the intensity of the Beidou satellite signal. The method employs one mode for positioning according to the intensity of the Beidou satellite signal and the intensity of the radio frequency signal. When the intensity of the Beidou satellite signal is greater than the intensity of the radio frequency signal, the method employs the Beidou satellite signal for positioning; when the intensity of the radio frequency signal is greater than the intensity of the Beidou satellite signal, the method employs the radio frequency signal for positioning. The method improves the positioning speed, and reduces the positioning errors.

Hybrid location method and system based on Beidou satellite and radio frequency

The invention discloses a mobile phone safety switching system based on the combination of network pushing and active scanning. The mobile phone safety switching system comprises a mobile phone and two built-in special modes of the mobile phone, namely a safety mode and a life mode, and a mode switching unit, a processor, a storage unit, a monitoring switching unit, a network monitoring module, abase station monitoring unit, a signal receiving unit, a label scanning unit and a data label unit are further arranged in the mobile phone. According to the invention, when the monitoring switching unit correspondingly generates a stable signal, the base station detection unit is started to detect, and whether the base station is located in a special environment or outside the special environmentis judged by means of a base station signal received by the mobile phone; and if a fluctuation signal is generated, the label scanning unit is started to scan all data label groups, and whether the user is in the special environment or not is judged by means of the scanned data labels.

Mobile phone safety switching system based on combination of network pushing and active scanning

The invention discloses a special body positioning system for special occasions, which comprises multiple satellites, position labels, and positioning receiving devices, wherein each satellite transmits satellite signals representing the satellite state to surrounding space; each position label transmits position label signals representing the position of the position label to the surrounding space; and the positioning receiving devices are used for receiving the satellite signals and the position label signals and judging the strength of the position label signals When the strength of the position label signals is larger than the preset strength value, the positioning receiving devices position the special populations according to the position label signals; when the strength of the position label signals is smaller than the preset strength value, the positioning receiving devices position the special populations according to the satellite signals; and the positioning receiving devices generate positioning signals

Wang Xueren

Papers

Special body positioning system for special populations