Miniaturized signal processing module

Abstract

The utility model discloses a miniaturized signal processing module, which is characterized in that a radio frequency transmitter is used for receiving signal input and transmitting signal output, and the output end of a radio frequency transceiver is bidirectionally and electrically connected with a signal processing unit; the output end of the signal processing unit is bidirectionally and electrically connected with a monitoring unit, a storage module and an interface module, the input end of the monitoring unit is electrically connected with the output end of a clock module, and the input end of the clock module is electrically connected with a power module. The output end of the clock module is electrically connected with the input end of the radio frequency transceiver and the input end of the signal processing unit. According to the utility model, the existing power supply link is simplified, the size of the whole machine is reduced by using an integrated device, and the whole signal processing module has a smaller size under the condition that the quality of transmitted signals is not influenced and errors are not influenced, so that the signal processing module has higher advantages.

Description

TECHNICAL FIELD

[0001] The utility model relates to satellite digital communication technical field especially relates to a miniaturized signal processing module. BACKGROUND

[0002] In recent years, the Internet of Things technology and application has entered a golden period of vigorous development, and the Internet of Things constellation, as a necessary supplement to the ground Internet of Things, can effectively solve the problem of Internet of Things network access in the sea, air and remote areas where the ground network cannot cover. Specifically, the Internet of Things constellation system can realize the functions of short data collection, big data analysis application and satellite commercial test based on the data collection capacity of satellites on the ground global real-time data capacity. The Internet of Things constellation system will evolve into a broadband communication constellation in the future, realizing global broadband communication and other value-added services based on the system, and meeting the demand of the army, government, industry and individual users for mass data acquisition in the fields of aviation, maritime affairs, forestry, earthquake, water conservancy, environmental protection, meteorology and ocean.

[0003] With the development of the Internet of Things technology and the space industry in China, the Internet of Things constellation and satellite constellation are continuously developing and expanding, and the signal processing module of the data collection system commonly used in the communication system has the problems of not timely transmission of signals, large error and large volume. SUMMARY

[0004] The utility model discloses a miniaturized signal processing module, which effectively solves the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0006] A miniaturized signal processing module, characterized in that it comprises a radio frequency transceiver, a monitoring unit, a signal processing unit, an interface module, a clock module, a storage module and a power module. The radio frequency transceiver is used for receiving signal input and transmitting signal output. The output end of the radio frequency transceiver is bidirectionally electrically connected with the signal processing unit. The output end of the signal processing unit is bidirectionally electrically connected with the monitoring unit, the storage module and the interface module respectively. The input end of the monitoring unit is electrically connected with the output end of the clock module. The input end of the clock module is electrically connected with the power module. The output end of the clock module is also electrically connected with the input end of the radio frequency transceiver and the signal processing unit respectively. The power module supplies power to the radio frequency transceiver, the monitoring unit, the signal processing unit, the interface module, the clock module and the storage module respectively.

[0007] Preferably, the signal processing unit comprises a field programmable gate array module and a monitoring management module, the output end of the radio frequency transceiver is bidirectionally and electrically connected with the field programmable gate array module, the output end of the field programmable gate array module is bidirectionally and electrically connected with the storage module and the interface module respectively, and the input end of the monitoring unit is bidirectionally and electrically connected with the output end of the monitoring management module.

[0008] Preferably, the radio frequency transceiver is a chip of AD9361 type.

[0009] Preferably, the field programmable gate array module is a chip of XC7A200T type.

[0010] Preferably, the output voltage of the power module comprises 3.3V, 1.8V, 1.2V and 1.0V.

[0011] Preferably, the clock module is an active temperature compensation crystal oscillator with a time base accuracy of <1ppm.

[0012] Preferably, the interface module comprises a CAN communication interface, an RS422 interface, an LVDS interface, an OC output and an RS485 interface.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) the radio frequency transceiver of the utility model is used for receiving signal input and transmitting signal output, the output end of the radio frequency transceiver is bidirectionally and electrically connected with the signal processing unit, the output end of the signal processing unit is bidirectionally and electrically connected with the monitoring unit, the storage module and the interface module respectively, the input end of the monitoring unit is electrically connected with the output end of the clock module, the input end of the clock module is electrically connected with the power module, and the output end of the clock module is also electrically connected with the input end of the radio frequency transceiver and the signal processing unit. The utility model simplifies the existing power supply link, uses integrated devices to make the whole machine volume reduce, does not affect the transmission signal quality, does not affect the error problem, and the overall signal processing module has smaller volume and higher advantage. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The frame flow chart of the utility model. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1 As shown, the miniaturized signal processing module includes an RF transceiver, a monitoring unit, a signal processing unit, an interface module, a clock module, a storage module, and a power supply module. The power supply module provides power to the RF transceiver, monitoring unit, signal processing unit, interface module, clock module, and storage module. The RF transceiver is used to receive signal input and transmit signal output. In this embodiment, the RF transceiver is an AD9361 chip, which integrates RF, mixer, and digital modules in a single RF transceiver, suitable for various communication standards. It allows transmission via a single-channel 12-bit parallel data port, a dual-channel 12-bit parallel data port, or a 12-bit low-level differential (LVDS) interface. The output of the RF transceiver is bidirectionally electrically connected to the signal processing unit. The output of the signal processing unit is bidirectionally electrically connected to the monitoring unit, storage module, and interface module, respectively. The interface module includes two CAN communication interfaces, four RS422 interfaces (four receive / four transmit), four LVDS interfaces (four receive / four transmit), sixteen OC outputs, and two RS485 interfaces. The data interface type can be selected according to actual usage requirements.

[0020] The input terminal of the monitoring unit is electrically connected to the output terminal of the clock module, and the input terminal of the clock module is electrically connected to the power supply module. The output voltage of the power supply module includes 3.3V, 1.8V, 1.2V and 1.0V. In practical applications, a high-density integrated DC-DC module is selected for the power supply module, which can save board area and reduce the overall size of the machine while meeting the load requirements.

[0021] The output end of the clock module is also electrically connected with the input end of the radio frequency transceiver and the signal processing unit respectively.

[0022] The signal processing unit comprises a field programmable gate array module and a monitoring management module, the output end of the radio frequency transceiver is bidirectionally electrically connected with the field programmable gate array module, the output end of the field programmable gate array module is bidirectionally electrically connected with the storage module and the interface module respectively, and the input end of the monitoring unit is bidirectionally electrically connected with the output end of the monitoring management module. In the embodiment, the signal processing unit plays a role in system state monitoring and management, FPGA program loading control, fault diagnosis and the like. The field programmable gate array module adopts an XC7A200T chip of an Artix-7 series of Xilinx Company, which comprises 33650 chips, 2888Kbit distributed RAM, 13140Kbit block RAM, 10 clock management modules, the maximum number of single-end I / O pins is 500, the maximum number of differential pins is 240, and the number of digital signal processing chips for data processing is 740.

[0023] The working principle of the utility model is as follows: the radio frequency signal enters the receiving channel of the radio frequency transceiver, is converted into a zero intermediate frequency signal by the receiving channel and is input to the signal processing unit, acquisition, tracking, information demodulation and frame synchronization are completed in the digital baseband, valid information in the synchronous frame is extracted, and the processing (instruction execution or data forwarding) of the demodulated data is completed.

[0024] When downlink data needs to be sent, the utility model opens the transmitting mode, the signal processing unit receives the data sent from the interface of the radio frequency transceiver or reads the data from the storage module, encodes and scrambles the data, and then transmits the modulated signal through the transmitting channel of the radio frequency transceiver.

[0025] The utility model simplifies the existing power supply link, uses integrated devices to reduce the volume of the whole machine, and has a smaller volume of the whole signal processing module without affecting the transmission signal quality and error, thereby having higher advantages. With the implementation of the satellite star network plan, the demand is increasing, and it is more meaningful to optimize the size.

[0026] The above embodiment is only a preferred embodiment of the utility model, and cannot be used to limit the scope of the utility model, therefore, the modification, equivalent change, improvement and the like made according to the patent range of the utility model still belong to the range covered by the utility model.

Claims

1. A miniaturized signal processing module, characterized in that: The system includes an RF transceiver, a monitoring unit, a signal processing unit, an interface module, a clock module, a storage module, and a power supply module. The RF transceiver is used to receive signal input and transmit signal output. The output terminal of the RF transceiver is bidirectionally electrically connected to the signal processing unit. The output terminal of the signal processing unit is bidirectionally electrically connected to the monitoring unit, the storage module, and the interface module, respectively. The input terminal of the monitoring unit is electrically connected to the output terminal of the clock module. The input terminal of the clock module is electrically connected to the power supply module. The output terminal of the clock module is also electrically connected to the input terminals of the RF transceiver and the signal processing unit, respectively. The power supply module supplies power to the RF transceiver, monitoring unit, signal processing unit, interface module, clock module, and storage module.

2. The miniaturized signal processing module according to claim 1, characterized in that: The signal processing unit includes a field-programmable gate array (FPGA) module and a monitoring and management module. The output of the RF transceiver is bidirectionally electrically connected to the FPGA module, and the output of the FPGA module is bidirectionally electrically connected to the storage module and the interface module, respectively. The input of the monitoring unit is bidirectionally electrically connected to the output of the monitoring and management module.

3. The miniaturized signal processing module according to claim 2, characterized in that: The radio frequency transceiver is an AD9361 chip.

4. A miniaturized signal processing module according to claim 3, characterized in that: The field-programmable gate array module is an XC7A200T chip.

5. A miniaturized signal processing module according to claim 1, characterized in that: The power module output voltages include 3.3V, 1.8V, 1.2V, and 1.0V.

6. A miniaturized signal processing module according to claim 4, characterized in that: The clock module is an active temperature-compensated crystal oscillator with a time base accuracy of <1ppm.

7. A miniaturized signal processing module according to claim 5, characterized in that: The interface module includes a CAN communication interface, an RS422 interface, an LVDS interface, 16 OC outputs, and an RS485 interface.

Images