Command recognition device and method for electronic detonators and time delay device and method

The invention belongs to the technical field of electronic detonators, and particularly relates to a command recognition device and method for the electronic detonators and a time delay device and method. The command recognition device and method for the electronic detonators and the time delay device and method have higher command recognition and tine delay precision. According to the technical scheme, an electronic detonator chip of the command recognition device for the electronic detonators is internally provided with a measurement module, a first measurement value register, a second measurement value register, a divider and a decoder, wherein the measurement module is used for counting and measuring a guiding character and a data character and calculating a reference value recognizedby a command; the first measurement value register is used for storing a measurement value M1 of the guiding character; the second measurement value register is used for storing a measurement value M2of the data character; th