| 摘要 |
FIELD: unified pyrotechnic device initiation systems.SUBSTANCE: device for blasting pyro aid comprises a power source, to the negative terminal of which is connected to one output of electronic key electroexplosive network, a microcontroller, a relay switch unit galvanic separation, electromagnetic relays, each winding of which is connected through a respective power amplifier with a first group of outputs of the microcontroller. Second group of outputs of the microcontroller is connected to a group of address inputs of the relay switch, an information input coupled to the first output of the electrical isolation, and the outputs are connected to the control inputs of the electronic switches and other terminal connected to the switching contacts of electromagnetic relays, make contacts are connected to the first terminals electroexplosion networks, the second terminals of which are combined and connected to the positive terminal of the power source. Second output of the galvanic isolation is connected to the negative terminal of the energy source, and inputs - to the strobe output of the microcontroller. Relay switch comprises a power amplifier which inputs are a group of address inputs of the relay switch and outputs connected to the windings of electromagnetic relays, which contacts are appropriately connected to each other and connected to the data input and outputs a relay switch.EFFECT: invention improves the noise immunity.1 cl, 2 dwg |
