Short-wave narrowband multichannel processing equipment

Abstract

The utility model discloses a short-wave narrowband multichannel processing device, which comprises a case, a cavity is arranged in the case, the center of the cavity is provided with a backboard which divides the cavity into two parts, one part is provided with an acquisition module assembly and a power supply module, and the other part is provided with an interface control module, a CPU mainboard and a power switch panel; the power module is electrically connected with the power switch panel, a signal input end of the CPU mainboard is connected with business software, and the business software is used for processing an input signal of the CPU mainboard; the module layout is reasonable and compact, so that the maintenance and upgrading of each module are facilitated; wherein the acquisition module assembly is responsible for receiving an external signal and converting the external signal into a digital signal which can be processed in the equipment; the interface control module is responsible for being connected with external equipment or a system to realize data input and output; the signal input end of the CPU main board is connected with service software to process input signals of the CPU main board, a user can process, analyze and identify the signals, different communication requirements are met, and the application range is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of shortwave communication, in particular to a shortwave narrowband multi-channel processing device. Background Art

[0002] Shortwave communication has many advantages such as simple equipment and long communication distance, and is used in a variety of communication scenarios. However, there are some problems with current shortwave receivers. Among them, the single-channel monitoring DDC (digital downconverter) has low working efficiency and narrow dynamic range. The receiver has a low cost performance and cannot complete the synchronous acquisition and processing of multiple intermediate frequency signals. This limits the performance of the shortwave receiver, cannot fully meet the user's application needs, and the user experience is not strong. Utility Model Content

[0003] In order to solve the technical problems that the existing shortwave receivers have low working efficiency, narrow dynamic range, and cannot fully meet user needs, the present application provides a shortwave narrowband multi-channel processing device.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: a shortwave narrowband multi-channel processing device, comprising a chassis, the chassis has a built-in cavity, a backplane is arranged at the center of the cavity to divide the cavity into two parts, one part is provided with an acquisition module component and a power module, and the other part is provided with an interface control module, a CPU main board and a power switch panel; the power module is electrically connected to the power switch panel, and the signal input end of the CPU main board is connected to the business software, and the business software is used to process the input signal of the CPU main board.

[0005] As one of the optimized implementation schemes of the utility model, the acquisition module assembly includes a main acquisition module and at least two slave acquisition modules, the main acquisition module includes four A / D converters, two DDC converters, a clock distribution chip, an FPGA chip and a DSP chip, and the signal output end of the A / D converter is connected to the signal input end of the DDC converter.

[0006] As one of the optimized implementation schemes of the utility model, the main acquisition module and a slave acquisition module are for synchronous acquisition of eight-channel intermediate frequency analog signals; another slave acquisition module is for synchronous acquisition of four-channel intermediate frequency analog signals.

[0007] As one of the optimized implementation schemes of the utility model, the signal input end of the DDC converter is connected to the signal input end of the FPGA chip.

[0008] As one of the optimized implementation schemes of the utility model, the interface control module is connected to the CPCI bus and the signal output terminal of the CPU mainboard.

[0009] As one of the optimized implementation schemes of the utility model, the acquisition module component, the interface control module and the CPU mainboard are all electrically connected to the power module

[0010] As one of the optimized implementation schemes of the utility model, the power supply module is a 220V AC power supply.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the shortwave narrowband multi-channel processing equipment adopts a chassis to be laid out in a cavity, which is reasonable, compact and convenient for maintenance and upgrading of each module; wherein, the acquisition module component is responsible for receiving external signals and converting them into digital signals that can be processed inside the equipment, and the power module can provide a stable power supply for the entire equipment to ensure that the equipment can work normally; the interface control module is responsible for connecting with external devices or systems to realize data input and output; the CPU mainboard is responsible for processing various business logics and control signals; the power switch panel can control the equipment power on and off, power status indication, etc., and the power switch of the equipment is controlled by the power switch panel, while the power module is responsible for converting the external power supply into the stable power required inside the equipment; in addition, the signal input end of the CPU mainboard is connected to the business software, which can process the input signal of the CPU mainboard, and the user can realize the functions of signal processing, analysis and identification, meet different communication needs, and expand the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0013] Figure 1 It is a schematic block diagram of the structure of a shortwave narrowband multi-channel processing device provided by the first embodiment of the utility model.

[0014] Figure 2 It is a processing flow chart of the shortwave narrowband multi-channel processing device provided by the first embodiment of the utility model.

[0015] Figure 3 It is a collection module diagram of the collection module assembly of the shortwave narrowband multi-channel processing device provided by the first embodiment of the utility model.

[0016] In the figure:

[0017] 1. Shortwave narrowband multi-channel processing equipment;

[0018] 10. Chassis; 11. Cavity; 12. Backplane; 13. Acquisition module assembly; 14. Power module; 15. Interface control module; 16. CPU mainboard; 17. Power switch panel; 18. Business software; 130. Main acquisition module; 131. Slave acquisition module one; 132. Slave acquisition module two; 1300. A / D converter; 1301. DDC converter; 1302. Clock distribution chip; 1303. FPGA chip; 1304. DSP chip. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0022] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] Please combine Figure 1-Figure 3 A shortwave narrowband multi-channel processing device 1 provided in the first embodiment of the utility model includes a chassis 10, a cavity 11 is built in the chassis 10, and a backplane 12 is arranged at the center of the cavity 11 to divide the cavity 11 into two parts, one part is provided with an acquisition module component 13 and a power module 14, and the other part is provided with an interface control module 15, a CPU mainboard 16 and a power switch panel 17; the power module 14 is electrically connected to the power switch panel 17, and the signal input end of the CPU mainboard 16 is connected to the business software 18, and the business software 18 is used to process the input signal of the CPU mainboard 16.

[0026] As an optional implementation, the entire shortwave narrowband multi-channel processing device 1 adopts a standard CPCI industrial computer. CPCI (Compact Peripheral Component Interconnect) refers to compact PCI, which has the characteristics of hot pluggability, high openness, high reliability, etc. It is developed and designed according to the CPCI bus and structure standards, has strong versatility, and is easy to maintain.

[0027] It is explained that the business software 18 is used to process the input signals of the CPU mainboard 16, where the CPU mainboard 16 is responsible for executing instructions, processing data and controlling the collaborative work of various components. The business software 18 processes the input signals of the CPU mainboard 16 efficiently and accurately through carefully designed algorithms and logics, provides hardware resources, and supports users to load algorithms by themselves to complete other functional expansions, thereby ensuring the smooth operation of the entire business; the business software 18 realizes real-time collection and monitoring of the enterprise's operating data by receiving the input signals of the CPU mainboard 16. The business software 18 can timely discover potential problems and opportunities through analysis of operating data, and provide support for the enterprise's decision-making.

[0028] It can be understood that the shortwave narrowband multi-channel processing device 1 adopts a chassis 10 to be laid out in the cavity 11, which is reasonable and compact, and is convenient for the maintenance and upgrading of each module; among them, the acquisition module component 13 is responsible for receiving external signals and converting them into digital signals that can be processed inside the device, and the power module 14 can provide a stable power supply for the entire device to ensure that the device can work normally; the interface control module 15 is responsible for connecting with external devices or systems to realize data input and output; the CPU motherboard 16 is responsible for processing various business logics and control signals; the power switch panel 17 can control the device power on and off, power status indication, etc., and the power switch of the device is controlled by the power switch panel 17, while the power module 14 is responsible for converting the external power supply into the stable power required inside the device; in addition, the signal input end of the CPU motherboard 16 is connected to the business software 18, which can process the input signal of the CPU motherboard 16, and the user can realize the functions of signal processing, analysis and identification, meet different communication needs, and expand the scope of application.

[0029] Furthermore, the acquisition module component 13 includes a main acquisition module 130 and at least two slave acquisition modules. The main acquisition module 130 includes four A / D converters 1300, two DDC converters 1301, a clock distribution chip 1302, an FPGA chip 1303 and a DSP chip 1304. The signal output end of the A / D converter 1300 is connected to the signal input end of the DDC converter 1301.

[0030] Furthermore, the main acquisition module 130 and a slave acquisition module are for synchronous acquisition of eight-channel intermediate frequency analog signals; and another slave acquisition module is for synchronous acquisition of four-channel intermediate frequency analog signals.

[0031] It is explained that the acquisition module component 13 can realize 20-channel synchronous acquisition, wherein the main acquisition module 130 is channels 1 to 8, and the slave acquisition module includes a slave acquisition module 1 131 and a slave acquisition module 2 132, the slave acquisition module 1 131 is channels 9 to 16, and the slave acquisition module 2 132 is channels 17 to 20.

[0032] It can be explained that the main acquisition module 130 mainly completes the synchronous acquisition, digital down-conversion and FFT transformation of 8 intermediate frequency analog signals, and outputs spectrum or IQ data. It also parses and outputs the received control instructions to control the working frequency, mode switching, gain control, etc. of the receiving module, local oscillator module, and correction source module; in addition, the main acquisition module 130 also transmits the input time stamp signal transparently for data time marking.

[0033] The shortwave narrowband multi-channel processing device 1 can realize 20-channel synchronous acquisition, FFT and other digital signal preprocessing functions. The acquisition module component 13 acquires the input intermediate frequency signal and preprocesses the digital signal. The interface control module 15 then outputs the processed data to the CPU mainboard 16 through the bridge chip. The CPU mainboard 16 is equipped with business software 18 to post-process the input digital signal.

[0034] The A / D converter 1300 refers to the conversion of analog signals into digital signals. Generally, the signal source generates analog signals, while digital signal processing has higher accuracy and stability. The DDC converter 1301 refers to a digital down-converter, which converts high-frequency digital signals into low-frequency signals. During the signal processing process, the signal is down-converted to facilitate subsequent analysis and processing. The clock distribution chip 1302 is responsible for providing accurate clock signals to each chip in the system to ensure that the chips can work synchronously, which is conducive to improving the stability and accuracy of the equipment. The FPGA chip 1303 refers to a field programmable gate array, which realizes various logical functions through programming. The FPGA chip 1303 can realize various processing operations such as filtering, transformation, and analysis of input signals. The DSP chip 1304 refers to a digital signal processor, which is a chip specially used for digital signal processing. It has powerful computing power and efficient algorithm processing capabilities, and realizes complex analysis and processing of signals, such as spectrum analysis, filtering, modulation and demodulation, etc.

[0035] As an optional implementation, the box size is a 19-inch rack chassis 10 with a height of 4U. Its loading algorithm can perform channel amplitude and phase correction, and can continuously output intermediate frequency digital I / Q signals. The digital intermediate frequency bandwidth includes any one of 0.5khz, 1khz, 3khz and 6khz. Channel amplitude correction can solve the amplitude distortion problem that may occur in the signal transmission process. The loading algorithm accurately measures the amplitude response of each channel and compensates it accordingly to ensure that the signal maintains the original amplitude information during transmission and avoids distortion. During the signal transmission process, due to factors such as the unevenness of the transmission medium and electromagnetic interference, the phase of the signal may shift. The loading algorithm measures the phase response of each channel and performs corresponding corrections to ensure that the signal maintains the correct phase relationship during transmission.

[0036] Furthermore, the signal input terminal of the DDC converter 1301 is connected to the signal input terminal of the FPGA chip 1303 .

[0037] Furthermore, the interface control module 15 is connected to the CPCI bus and the signal output terminal of the CPU mainboard 16 .

[0038] Furthermore, the acquisition module assembly 13, the interface control module 15 and the CPU mainboard 16 are all electrically connected to the power module 14.

[0039] Furthermore, the power module 14 is a 220V AC power source.

[0040] It is explained that the DDC converter 1301 (Digital-to-Digital Converter) converts digital signals from one format to another to ensure the correct transmission and processing of the signal. It is connected to the signal input end of the FPGA chip 1303 and can receive and process digital signals from various sources; through the interface control module 15, the CPC I bus can perform efficient and stable signal transmission with the CPU mainboard 16 to achieve rapid data exchange and processing; the acquisition module component 13 can collect analog signals or digital signals from external devices and convert them into a signal format suitable for system processing; the power module 14 uses a 220V AC power supply, which is stable, reliable, and easy to obtain. Through the power module 14, the system can ensure that each component operates under stable voltage and current, avoiding system failure or performance degradation due to power supply problems.

[0041] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A shortwave narrowband multi-channel processing device, characterized in that: It includes a chassis with a built-in cavity. A backplane is arranged in the center of the cavity to divide the cavity into two parts, one part is provided with an acquisition module component and a power module, and the other part is provided with an interface control module, a CPU mainboard and a power switch panel; the power module is electrically connected to the power switch panel, and the signal input end of the CPU mainboard is connected to the business software, and the business software is used to process the input signal of the CPU mainboard.

2. The shortwave narrowband multi-channel processing device according to claim 1, characterized in that: The acquisition module assembly includes a main acquisition module and at least two slave acquisition modules. The main acquisition module includes four A / D converters, two DDC converters, a clock distribution chip, an FPGA chip and a DSP chip. The signal output end of the A / D converter is connected to the signal input end of the DDC converter.

3. The shortwave narrowband multi-channel processing device according to claim 2, characterized in that: The main acquisition module and a slave acquisition module are for synchronous acquisition of eight-channel intermediate frequency analog signals; the other slave acquisition module is for synchronous acquisition of four-channel intermediate frequency analog signals.

4. The shortwave narrowband multi-channel processing device according to claim 2, characterized in that: The signal input end of the DDC converter is connected to the signal input end of the FPGA chip.

5. The shortwave narrowband multi-channel processing device according to claim 1, characterized in that: The interface control module is connected to the CPCI bus and the signal output terminal of the CPU mainboard.

6. The shortwave narrowband multi-channel processing device according to claim 5, characterized in that: The acquisition module assembly, the interface control module and the CPU mainboard are all electrically connected to the power module.

7. The shortwave narrowband multi-channel processing device according to claim 1, characterized in that: The power supply module is a 220V AC power supply.

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