Intermediate frequency attenuation simulation and communication path switching device

Abstract

The utility model relates to a device for simulating intermediate-frequency attenuation and communicating path switching. The device comprises four intermediate-frequency attenuation modules, a communicating path switching module and a control module, the four intermediate-frequency attenuation modules correspond to four node external signals, each node external signal has six paths of signal input and output, one intermediate-frequency attenuation module is connected with six paths of external intermediate-frequency signals of one node, and the six paths of intermediate-frequency signals are input, output and attenuated by selecting two paths of channels; the communication path switching module switches different paths and is connected with different intermediate frequency attenuation modules, and the control module controls the channel switching of the communication path switching module, the attenuation amount of the intermediate frequency attenuation modules and the selection of external signal channels. The medium-frequency signal attenuator is simple in structure, low in cost, easy to realize large-scale production, high in attenuation precision, capable of realizing accurate attenuation control on medium-frequency signals, fast in switching speed, capable of meeting requirements of a high-frequency communication system, flexible in control and capable of realizing automatic control and remote management through external instructions.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to a device for simulating intermediate frequency attenuation and switching of connection paths. Background Technology

[0002] In modern communication systems, intermediate frequency (IF) signal processing is crucial; IF attenuation and path switching are key technologies for ensuring communication quality. Existing IF attenuation and path switching equipment is often complex in structure, expensive, and difficult to control precisely and switch quickly. Therefore, addressing the problems of existing IF attenuation and path switching equipment is a pressing issue. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for simulating intermediate frequency attenuation and switching of connection paths, thus solving the deficiencies of the prior art.

[0004] The purpose of this utility model is achieved through the following technical solution: a device for simulating intermediate frequency attenuation and connection path switching, the device comprising 4 intermediate frequency attenuation modules, a connection path switching module and a control module;

[0005] Each intermediate frequency (IF) attenuation module is connected to the connection path switching module, and the control module is connected to each IF attenuation module and the connection path switching module. The four IF attenuation modules correspond to the four external signals of the four nodes. Each node has six signal inputs and outputs. One IF attenuation module connects to the six external IF signals of one node and selects two channels for input / output and attenuation processing of the six IF signals. The connection path switching module switches between different IF attenuation modules for different paths. The control module controls the channel switching of the connection path switching module, the attenuation of the IF attenuation module, and the selection of external signal channels.

[0006] The intermediate frequency attenuation module includes a channel switching circuit, an intermediate frequency attenuation circuit, and an input / output circuit; the channel switching circuit is connected to the intermediate frequency attenuation circuit, the intermediate frequency attenuation circuit is connected to the input / output circuit, the control module is connected to the channel switching circuit, the intermediate frequency attenuation circuit, and the input / output circuit, and the input / output circuit is connected to the connecting path switching module.

[0007] The intermediate frequency attenuation circuit includes a first attenuator and a second attenuator, which are connected together. The first attenuator performs coarse attenuation on the intermediate frequency signal, and the second attenuator performs fine attenuation on the intermediate frequency signal.

[0008] The connection path switching module includes an input channel expansion circuit and a channel switching circuit. The input channel expansion circuit is connected to the channel switching circuit. The control module is connected to both the channel expansion circuit and the channel switching circuit. The channel switching circuit is connected to the input channel expansion circuit.

[0009] The control module includes a microcontroller and a drive circuit. The microcontroller is connected to the drive circuit. The microcontroller is used to receive external control commands and generate control signals according to the commands. The drive circuit converts the control signals into drive signals.

[0010] This utility model has the following advantages: a simulated intermediate frequency attenuation and connection path switching device has a simple structure, low cost, is easy to mass-produce, has high attenuation accuracy, can achieve precise attenuation control of intermediate frequency signals, has fast switching speed, can meet the needs of high frequency communication systems, and has flexible control, which can achieve automatic control and remote management through external commands. Attached Figure Description

[0011] Figure 1 This is a schematic diagram illustrating the principle and structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the principle structure of the intermediate frequency attenuation module;

[0013] Figure 3 This is a schematic diagram of the principle structure of the connection path switching module. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of this application provided below with reference to the accompanying drawings is not intended to limit the scope of protection of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. The present invention will be further described below with reference to the accompanying drawings.

[0015] like Figure 1 As shown, this utility model specifically relates to a simulated intermediate frequency attenuation and connection path switching device, which includes four intermediate frequency attenuation modules, a connection path switching module, and a control module.

[0016] Each intermediate frequency (IF) attenuation module is connected to the connection path switching module, and the control module is connected to each IF attenuation module and the connection path switching module. The four IF attenuation modules correspond to the four external signals of the four nodes. Each node has six signal inputs and outputs. One IF attenuation module connects to the six external IF signals of one node and selects two channels for input / output and attenuation processing of the six IF signals. The connection path switching module switches between different IF attenuation modules for different paths. The control module controls the channel switching of the connection path switching module, the attenuation of the IF attenuation module, and the selection of external signal channels.

[0017] like Figure 2 As shown, the intermediate frequency attenuation module includes a channel switching circuit, an intermediate frequency attenuation circuit, and an input / output circuit. The intermediate frequency attenuation circuit includes a first attenuator and a second attenuator. The first attenuator is used to coarsely attenuate the intermediate frequency signal, and the second attenuator is used to finely attenuate the intermediate frequency signal, thereby achieving precise attenuation control of the intermediate frequency signal. The channel switching circuit and the input / output circuit complete the selection of two external signals from multiple channels to enter the connecting path switching module.

[0018] like Figure 3 As shown, the connection path switching module includes an input channel expansion circuit and a channel switching circuit. The input channel expansion circuit expands one signal into eight signals, and the channel switching circuit combines the eight signals into one output signal. Through the coordinated operation of the two circuits, flexible switching between different paths can be achieved.

[0019] Furthermore, the control module includes a microcontroller and a drive circuit. The microcontroller is used to receive external control commands and generate control signals according to the commands. The drive circuit is used to convert the control signals into drive signals to drive the operation of the intermediate frequency attenuation module and the connection path switching module, respectively.

[0020] The working principle of this invention is as follows: The intermediate frequency (IF) attenuation module receives the IF signal from the front end. The channel switching circuit in the IF attenuation module selects two signals via switches and transmits them to the IF attenuation circuit in the IF attenuation module via transmission lines. Then, the first attenuator in the IF attenuation circuit performs coarse attenuation of the IF signal, and the second attenuator performs fine attenuation, thereby achieving precise control of the IF signal. The input / output circuit expands the two attenuated signals into two inputs and two outputs, which are then transmitted to the path switching module via RF cables. The two switches in the path switching module quickly switch between different paths according to the instructions of the control unit, ensuring signal transmission on different paths. The microcontroller in the control module receives external instructions, generates corresponding control signals, and drives the attenuation unit and the switching unit through the drive circuit.

[0021] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the form disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and improvements, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A device for simulating intermediate frequency attenuation and connection path switching, characterized in that: The device includes four intermediate frequency attenuation modules, a connection path switching module, and a control module; Each intermediate frequency (IF) attenuation module is connected to the connection path switching module, and the control module is connected to each IF attenuation module and the connection path switching module. The four IF attenuation modules correspond to the four external signals of the four nodes. Each node has six signal inputs and outputs. One IF attenuation module connects to the six external IF signals of one node and selects two channels for input / output and attenuation processing of the six IF signals. The connection path switching module switches between different IF attenuation modules for different paths. The control module controls the channel switching of the connection path switching module, the attenuation of the IF attenuation module, and the selection of external signal channels.

2. The analog intermediate frequency attenuation and connection path switching device according to claim 1, characterized in that: The intermediate frequency attenuation module includes a channel switching circuit, an intermediate frequency attenuation circuit, and an input / output circuit; the channel switching circuit is connected to the intermediate frequency attenuation circuit, the intermediate frequency attenuation circuit is connected to the input / output circuit, the control module is connected to the channel switching circuit, the intermediate frequency attenuation circuit, and the input / output circuit, and the input / output circuit is connected to the connecting path switching module.

3. The analog intermediate frequency attenuation and connection path switching device according to claim 2, characterized in that: The intermediate frequency attenuation circuit includes a first attenuator and a second attenuator, which are connected together. The first attenuator performs coarse attenuation on the intermediate frequency signal, and the second attenuator performs fine attenuation on the intermediate frequency signal.

4. The analog intermediate frequency attenuation and connection path switching device according to claim 2, characterized in that: The connection path switching module includes an input channel expansion circuit and a channel switching circuit. The input channel expansion circuit is connected to the channel switching circuit. The control module is connected to both the channel expansion circuit and the channel switching circuit. The channel switching circuit is connected to the input channel expansion circuit.

5. The analog intermediate frequency attenuation and connection path switching device according to claim 1, characterized in that: The control module includes a microcontroller and a drive circuit. The microcontroller is connected to the drive circuit. The microcontroller is used to receive external control commands and generate control signals according to the commands. The drive circuit converts the control signals into drive signals.

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