Timing method, device and system

The invention provides a timing method, device and system, and the method comprises the steps: obtaining Bluetooth broadcast data in a set time period, wherein the Bluetooth broadcast data comprises a Bluetooth emitter identification and a Bluetooth signal intensity value; adding a time stamp for each piece of Bluetooth broadcast data, and obtaining the Bluetooth timing data, wherein the time stamps are used for recording the time when the Bluetooth broadcast data is obtained; determining one piece of reference Bluetooth timing data for each Bluetooth emitter in the set time period according to the Bluetooth signal intensity value; enabling the reference Bluetooth timing data to be transmitted to a server, so that the server determines the time when the user wearing the Bluetooth emitter passes by the timing device according to the reference Bluetooth timing data. According to the technical scheme of the invention, the method, device and system can achieve noninductive timing. Moreover, the Bluetooth emitter