Edge server with radio frequency signal receiving function

Abstract

The utility model discloses an edge server with a radio frequency signal receiving function, which comprises a radio frequency module and a conversion module, and the radio frequency module comprises three filtering units which are electrically connected in sequence. The first filtering unit comprises an amplitude limiter, a digital step attenuator, a first amplifier, a first filter, a first frequency mixer and a first local oscillation source, the amplitude limiter, the digital step attenuator, the first amplifier, the first filter and the first frequency mixer are electrically connected in sequence, and the first local oscillation source is electrically connected with the first frequency mixer. According to the edge server with the radio-frequency signal receiving function, the radio-frequency signal is received by adopting the radio-frequency module, and the radio-frequency signal is directly filtered, so that unwanted frequency bands in the radio-frequency signal are filtered out, and a radio-frequency signal receiving device which needs to be additionally used in the prior art is omitted; and the data is transmitted to an edge server in a gigabit or 10 gigabit mode, so that the arrangement and carrying of the edge in a scene are easier.

Description

TECHNICAL FIELD

[0001] The utility model belongs to edge server technical field, concretely relates to a kind of edge servers with radio frequency signal reception. BACKGROUND

[0002] Edge Server is a kind of distributed computing architecture, wherein data processing is carried out at the edge of the network, that is, close to the data source. This server design is used to improve response speed and reduce bandwidth usage, and is usually deployed at the edge of the user access network, such as the network edge of a telecommunications operator, or directly in the user equipment.

[0003] The existing edge server is mainly used for data transmission, data processing and data storage in terms of hardware function. In the scene of receiving and processing radio frequency signals and inference training, additional radio frequency signal receiving equipment is needed, and the data is transmitted to the edge server through gigabit or megabit, and then data processing and analysis storage are carried out, which increases the arrangement and carrying difficulty of edge use scene. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems raised in the background art and proposes an edge server with radio frequency signal reception.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows:

[0006] The utility model proposes an edge server with radio frequency signal reception, which comprises a radio frequency module and a conversion module, wherein:

[0007] The radio frequency module comprises three filter units connected in series, namely a first filter unit, a second filter unit and a third filter unit;

[0008] The first filter unit comprises an amplitude limiter, a digital step attenuator, a first amplifier, a first filter and a first mixer connected in series, and a first local oscillator source, wherein the first local oscillator source is electrically connected to the first mixer;

[0009] The second filter unit comprises a second filter, a second amplifier and a second mixer connected in series, and a second local oscillator source, wherein the second local oscillator source is electrically connected to the second mixer, and the second filter is electrically connected to the first mixer;

[0010] The third filter unit comprises a third filter, a third amplifier, a band-pass filter and a fourth amplifier connected in series, wherein the third filter is electrically connected to the second mixer;

[0011] The fourth amplifier is electrically connected to the conversion module.

[0012] Preferably, the radio frequency module further includes a first interface, and the first interface is electrically connected to the limiter, and the first interface is also electrically connected to a radio frequency antenna.

[0013] Preferably, the conversion module includes an A / D converter, and the A / D converter is electrically connected to the fourth amplifier.

[0014] Preferably, the conversion module further includes a SOC chip, and the SOC chip is electrically connected to the A / D converter.

[0015] Preferably, the edge server with radio frequency signal reception further comprises a power module, and the power module is electrically connected to the components in the radio frequency module and the conversion module respectively.

[0016] Preferably, the edge server with radio frequency signal reception further includes a host computer, and the host computer is electrically connected to the SOC chip.

[0017] Preferably, the edge server with radio frequency signal reception further comprises a crystal oscillator for providing a reference clock, and the crystal oscillator is respectively connected to each local oscillator source, the A / D converter and the SOC chip.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This edge server with RF signal reception uses an RF module to receive RF signals, and directly filters the RF signals to remove unnecessary frequency bands in the RF signals, eliminating the need for additional RF signal receiving equipment in the existing technology, and transmits the signals to the edge server via gigabit or 10 gigabit methods, making it easier to deploy and carry in edge usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a module block diagram of the radio frequency module and the conversion module in the edge server with radio frequency signal reception of the utility model;

[0021] Figure 2 This is a module block diagram of an edge server with radio frequency signal reception in the present utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0023] like Figure 1 As shown, an edge server with radio frequency signal reception is provided, including a radio frequency module and a conversion module, wherein:

[0024] The radio frequency module includes three filter units electrically connected in sequence, namely a first filter unit, a second filter unit and a third filter unit;

[0025] A first filtering unit includes a limiter, a digital step attenuator, a first amplifier, a first filter, and a first mixer, which are electrically connected in sequence, and a first local oscillator, wherein the first local oscillator is electrically connected to the first mixer (an output end of the first local oscillator is connected to one input end of the first mixer, and the first filter is connected to the other input end of the first mixer);

[0026] A second filtering unit includes a second filter, a second amplifier, a second mixer, and a second local oscillator, which are electrically connected in sequence. The second local oscillator is electrically connected to the second mixer, and the second filter is electrically connected to the first mixer (the output end of the second local oscillator is connected to one of the input ends of the second mixer, the second amplifier is connected to the other input end of the second mixer, and the second filter is connected to the output end of the first mixer);

[0027] The third filtering unit includes a third filter, a third amplifier, a bandpass filter, and a fourth amplifier electrically connected in sequence, wherein the third filter is electrically connected to the second mixer (the third filter is connected to the output end of the second mixer);

[0028] The fourth amplifier is electrically connected to the conversion module.

[0029] The radio frequency module further includes a first interface, and the first interface is electrically connected to the limiter, and the first interface is also electrically connected to a radio frequency antenna.

[0030] It should be noted that the first interface is an SMA (SubMiniature version A) interface, and the first interface is set on the side wall of the chassis of the edge server. The RF antenna can be connected to the edge server through a coaxial cable to enable the edge server to receive the RF signal. The RF signal is input from the RF antenna into the RF module in the edge server. The input RF signal is first limited by the limiter (the model used in this embodiment is ARW4442) to prevent the high-power signal from damaging subsequent devices. The input RF signal is then attenuated by the digital step attenuator. The RF signal is then sequentially passed through the first amplifier (specifically, a first-stage buffer amplifier BR9104 and XT305003) to increase the power of the RF signal and the first filter (specifically, an LC filter) to suppress it. The signal then passes through the first mixer. At the same time, the first local oscillator source provides a first local oscillator signal to input into the first mixer, which is mixed with the signal input by the first filter to obtain a first intermediate frequency signal.

[0031] The first intermediate frequency signal then passes through a second filter (specifically, an LC filter) for filtering, a second amplifier (specifically, a two-stage amplifier) ​​for amplification and digitally controlled attenuation, and then passes through a second mixer. Simultaneously, a second local oscillator source provides a second local oscillator signal, which is input to the second mixer and mixed with the signal input from the second amplifier to obtain a second intermediate frequency signal.

[0032] The second intermediate frequency signal is then filtered by the third filter (specifically an LC filter), amplified and digitally attenuated by the third amplifier (specifically a two-stage amplifier), and then passed through a bandpass filter and a fourth amplifier (specifically a two-stage amplifier) ​​to obtain a third intermediate frequency signal, which is finally output to the conversion module for analog-to-digital conversion.

[0033] In one embodiment, the conversion module includes an A / D converter, and the A / D converter is electrically connected to the fourth amplifier;

[0034] The third intermediate frequency signal after passing through the fourth amplifier is converted from analog to digital by an A / D converter to generate a digital signal.

[0035] In one embodiment, the conversion module further includes a SOC chip, which is electrically connected to the A / D converter; the edge server with radio frequency signal reception further includes a host computer, which is electrically connected to the SOC chip;

[0036] The A / D converter inputs the generated digital signal into the SOC chip, which processes the digital signal through DDC (direct digital control), fast Fourier transform (FFT), etc., and then sends it to the host computer for use.

[0037] like Figure 2 As shown, the host computer can transmit the received data to the other modules in the edge server through the high-speed bus of the VPX connector. For example, the signal preprocessing module realizes the time-frequency spectrum visualization and time-frequency graph scaling functions, and realizes high-speed interaction of data and instructions with the CPU of the main control module based on the PCIE3.0 protocol. The main control module of the edge server is mainly responsible for running the operating system and reasoning training software, and realizes the connection of the functions of each module through a rich extension interface, and connects to the AI ​​module through the PCIE3.0 protocol. The AI ​​module can realize reasoning and training of the time-frequency graph transmitted by the preprocessing module (the operations in this part are all existing technologies).

[0038] In one embodiment, the edge server with radio frequency signal reception further includes a power module, which is electrically connected to each component in the radio frequency module and the conversion module respectively;

[0039] The power supply module supplies power to the limiter, filters, amplifiers, mixers and local oscillators in the radio frequency module respectively.

[0040] In one embodiment, the edge server with radio frequency signal reception further comprises a crystal oscillator for providing a reference clock, the crystal oscillator being connected to each local oscillator source, A / D converter and SOC chip respectively; the crystal oscillator provides a reference clock for each local oscillator source, A / D converter and SOC chip, so that the clock phases are consistent. Meanwhile, the crystal oscillator also provides a reference clock for the signal preprocessing module.

[0041] In this embodiment, the frequency band of the input radio frequency signal is 30MHz-6GHz, and after passing through three filter units, a third intermediate frequency signal of 307.2MHz is finally obtained and input to the A / D converter.

[0042] The edge server with radio frequency signal reception realizes the reception of the radio frequency signal by adopting the radio frequency module, directly filters the radio frequency signal, filters out the frequency band not needed in the radio frequency signal, saves the need for additional use of the radio frequency signal receiving device in the prior art, and transmits to the edge server through the gigabit or terabit mode, thereby making the arrangement and carrying of the edge use scene easier.

[0043] The above embodiments only express several embodiments of the application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which belong to the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. An edge server with radio frequency signal reception, characterized by: The edge server with radio frequency signal reception includes a radio frequency module and a conversion module, wherein: The radio frequency module includes three filter units electrically connected in sequence, namely a first filter unit, a second filter unit and a third filter unit; The first filtering unit comprises a limiter, a digital step attenuator, a first amplifier, a first filter, a first mixer, and a first local oscillator, which are electrically connected in sequence. The first local oscillator is electrically connected to the first mixer. The second filtering unit comprises a second filter, a second amplifier, and a second mixer, which are electrically connected in sequence, and a second local oscillator source, wherein the second local oscillator source is electrically connected to the second mixer, and the second filter is electrically connected to the first mixer; The third filtering unit comprises a third filter, a third amplifier, a bandpass filter and a fourth amplifier which are electrically connected in sequence, and the third filter is electrically connected to the second mixer; The fourth amplifier is electrically connected to the conversion module.

2. The edge server with radio frequency signal reception according to claim 1, wherein: The radio frequency module further includes a first interface, and the first interface is electrically connected to the limiter. The first interface is also electrically connected to a radio frequency antenna.

3. The edge server with radio frequency signal reception according to claim 1, wherein: The conversion module includes an A / D converter, and the A / D converter is electrically connected to the fourth amplifier.

4. The edge server with radio frequency signal reception according to claim 3, wherein: The conversion module further includes a SOC chip, and the SOC chip is electrically connected to the A / D converter.

5. The edge server with radio frequency signal reception according to claim 4, characterized in that: The edge server with radio frequency signal reception further includes a power supply module, which is electrically connected to the radio frequency module and the components in the conversion module respectively.

6. The edge server with radio frequency signal reception according to claim 4, wherein: The edge server with radio frequency signal reception further includes a host computer, which is electrically connected to the SOC chip.

7. The edge server with radio frequency signal reception according to claim 4, wherein: The edge server with radio frequency signal reception further comprises a crystal oscillator for providing a reference clock, and the crystal oscillator is respectively connected to each local oscillator source, the A / D converter and the SOC chip.

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