Split type elevator communication system based on TD network mode
A technology of communication system and network mode, applied in the field of split elevator communication system, can solve the problems of high cost of synchronization module and high cost of elevator system, and achieve the effect of realizing signal synchronization control function and reducing system cost.
Active Publication Date: 2022-03-04
深圳国人无线通信有限公司
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Problems solved by technology
[0004] The servo unit of the elevator car also needs to relay and re-amplify the uplink and downlink network radio frequency signals of the TD network. The car unit adopts the demodulation synchronization signal method. Due to the high cost of the synchronization module, the cost of the elevator system is high
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[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0030] It should be noted that the terms "first" and "second" in the specification and claims of the present application are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged where appropriate for implementation in sequences other than the embodiments of the invention.
[0031] refer to figure 1 , figure 2 , the split elevator communication s...
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The invention relates to a split type elevator communication system based on a TD network mode. The split type elevator communication system comprises a host unit and a follow-up unit. The host unit comprises a first antenna used for receiving and sending TD network signals, a coupler, a first signal processing module, a synchronization module, a first modulation and demodulation module, a first combiner and splitter, and a second antenna. The follow-up unit comprises a third antenna, a second combiner and splitter, a second signal processing module, a second modulation and demodulation module and a fourth antenna. According to the split type elevator communication system, the modulation and demodulation modules used for modulating and demodulating the synchronous signals are additionally arranged on the host unit and the follow-up unit, the signal synchronous control function is achieved, an expensive synchronous module does not need to be used on the follow-up unit, and the system cost is greatly reduced.
Description
technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a split elevator communication system based on TD network mode. Background technique [0002] People rely more and more on mobile communication networks, but indoor areas are always difficult for signal coverage. The population density of the city is high, and there are many high-rise buildings. There is often a phenomenon that there is no signal in the elevator. The elevator coverage system is born to solve the problem of elevator mobile network coverage. The elevator coverage system generally consists of a host unit and a follower unit, and the host unit is installed above the elevator machine room or shaft. The slave unit is installed on the elevator car, and the master unit and the slave unit transmit mobile communication network signals in space. When the elevator car is at the top, the car unit and the host unit adjust to reduce the system gain to en...
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Login to View More IPC IPC(8): H04J3/06H04J3/16H04B3/60
CPCH04J3/0647H04J3/1694H04B3/60Y02D30/70
Inventor 高鹏陈波宇杨新胜
Owner 深圳国人无线通信有限公司