Elevator emergency system
An emergency system and elevator technology, applied in the field of elevators, can solve problems such as failure to realize emergency rescue, signal easily interfered, signal distortion, etc., and achieve the effect of low production cost, large reliability advantage, and signal distortion solution.
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[0032] Example 1
[0033] Such as Figure 1~2 As shown: the elevator emergency intercom system of this embodiment includes the car intercom switchboard (such as microphones, walkie-talkies and other communication equipment, or microphones or walkie-talkies connected with preamplifiers), duty room intercom switches (such as microphones, walkie-talkies) Communication equipment), computer room terminals (such as computer room extension, computer room switchboard, etc.), car top terminal, car bottom terminal, D / A conversion device and power amplifier; among the above main components, reference figure 1 : The car intercom switchboard and the duty room intercom switchboard, the car intercom switchboard and the car top terminal, the car intercom switchboard and the machine room terminal, and the car intercom switchboard and the car bottom terminal all use CAN bus transmission, power The amplifier communicates with the D / A conversion device; in order to solve the problems of signal disto...
Example Embodiment
[0037] Example 2
[0038] The elevator emergency intercom system of this embodiment includes the car intercom switchboard (such as communication equipment such as microphones, walkie-talkies, or the equipment after the microphone or the walkie-talkie is connected to the preamplifier), and the duty room intercom switchboard (such as microphones, walkie-talkies and other communication equipment) ), computer room terminal (such as computer room extension, computer room switchboard, etc.), car top terminal, car bottom terminal, among the above main components, based on optical fiber communication, the cost is small, the bandwidth is large, and the reliability is large. The emergency intercom system is easy to install and low in cost; it is stable and reliable, and the video intercom does not need to consider the expansion of communication lines. Refer to Figure 6: When the signal conversion device of the elevator emergency intercom system is an optical signal conversion device, this ...
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