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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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 microphone, walkie-talkie or the equipment after microphone or walkie-talkie is connected with the preamplifier), duty room intercom switchboard (such as microphone, walkie-talkie 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...
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 the 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. It realizes an improved interconnection of traditional intercom systems 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 i...
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