An elevator emergency system
An emergency system and elevator technology, applied in the field of elevators, can solve the problems of failure to realize emergency rescue, easy signal interference, complicated debugging, etc., and achieve the effect of low production cost, large reliability advantage, and personal safety guarantee.
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Embodiment 1
[0033] Such as Figure 1~2 Shown: the elevator emergency intercom system of this embodiment includes the car intercom switchboard (such as communication equipment such as microphones, walkie-talkies or microphones or intercoms connected to preamplifiers), duty room intercom switchboards (such as microphones, walkie-talkies, etc.) and other communication equipment), machine room terminals (such as machine room extensions, machine room switchboards, etc.), car top terminals, car bottom terminals, D / A conversion devices and power amplifiers; among the above-mentioned main components, refer to figure 1 : Between the car intercom switchboard and the duty room intercom switchboard, between the car intercom switchboard and the car top terminal, between the car intercom switchboard and the machine room terminal, and between the car intercom switchboard and the car bottom terminal, CAN bus transmission is adopted, and the power The amplifier is connected with the D / A conversion device ...
Embodiment 2
[0038] The elevator emergency intercom system of this embodiment includes a car intercom switchboard (such as a microphone, a walkie-talkie and other communication equipment or a device after a microphone or a walkie-talkie is connected to a preamplifier), a duty room intercom switchboard (such as a microphone, a walkie-talkie and other communication equipment) ), computer room terminals (such as computer room extensions, computer room switchboards, etc.), car top terminals, and car bottom terminals. Among the above-mentioned 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 there is no need to consider expanding the communication line for video intercom. Refer to Figure 6: When the signal conversion device of the elevator emergency intercom system is an optical signal conversion device, this When the car ...
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