Multiple slave logging device
First Claim
1. A logging device for use with a plurality of slave devices each having an identity and a pyrotechnic charge, comprising a power supply, an electrical interface, and memory, said logging device being configured for two-way communication with said plurality of slave devices simultaneously connected to said electrical interface by individually addressing said slave devices, wherein said logging device is configured to operate only at a voltage that is incapable of causing detonation of said pyrotechnic charge.
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Accused Products
Abstract
A multiple slave logging device, or “logger” for use in a system such as an electronic blasting system. The logger is able to communicate with multiple slave devices connected to it, and preferably also is able to communicate with a slave device connected individually. The logger preferably utilizes current modulation-based talkback from the slave devices, and optionally may also be adapted to detect the presence of inappropriate slave devices connected to the system.
30 Citations
20 Claims
- 1. A logging device for use with a plurality of slave devices each having an identity and a pyrotechnic charge, comprising a power supply, an electrical interface, and memory, said logging device being configured for two-way communication with said plurality of slave devices simultaneously connected to said electrical interface by individually addressing said slave devices, wherein said logging device is configured to operate only at a voltage that is incapable of causing detonation of said pyrotechnic charge.
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12. A system for logging multiple slave devices, comprising:
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a) an electrical conduit; b) a plurality of slave device simultaneously connectable to said electrical conduit and each having an identity and a pyrotechnic charge; and c) a logging device comprising a power supply, an interface connectable to said electrical conduit, and memory, said logging device being configured for two-way communication with said plurality of slave devices simultaneously connected to said electrical conduit by individually addressing said slave devices, wherein said logging device is configured to operate only at a voltage that is incapable of causing detonation of said pyrotechnic charge. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification