A radio monitoring system

Abstract

The present application relates to a radio monitoring system, including a monitoring device and a monitoring antenna; the monitoring device includes a power module, a communication bus, a switching board, a backplane, and a plurality of expansion slots arranged on the backplane; the monitoring antenna is used to monitor radio signals, and transmit the monitored radio signals to the corresponding first radio frequency board according to the frequency band; the first baseband board is used in conjunction with the first radio frequency board to obtain the radio signal processed by the first radio frequency board, and perform modulation signal processing on the processed radio signal, and transmit the processing result to the switching board; the switching board is used to obtain the processing result, determine whether the processing result is abnormal, and if so, determine that the radio signal is an abnormal signal and output the abnormal result. The present application is used to solve the problem that the existing radio monitoring equipment in various industries can only monitor and process radio signals of one frequency band, and cannot perform multiple frequency band expansion processing on the original monitoring equipment.

Description

Technical Field

[0001] The present application relates to the field of radio monitoring technology, and in particular to a radio monitoring system. Background Art

[0002] The Wireless Committee, anti-terrorism security, coast guard and other departments all need to monitor suspicious radio signals. For example, when conducting prevention and control at key locations or performing security operations, they all need to investigate and control abnormal signals in the surrounding areas.

[0003] Now, each department has established its own communication system, such as the railway department, financial department, power department, aviation department, etc. Each department needs to use the signal of the legally allocated frequency band, and it should not be interfered by the outside world. For example, if the aviation department has interference signals in the open space of the airport, it will cause problems for the flight of the aircraft.

[0004] The existing communication systems in various industries are independent. When the industry develops and needs to monitor radio signals in more frequency bands, the original monitoring equipment and software systems cannot be realized, and new monitoring equipment and software systems have to be purchased, resulting in reduced system scheduling capabilities, ineffective data integration, poor user experience, and increased costs. Summary of the invention

[0005] The present application provides a radio monitoring system to solve the problem that the existing radio monitoring equipment in various industries can only monitor and process radio signals of one frequency band and cannot perform multi-frequency band expansion processing on the original monitoring equipment.

[0006] In a first aspect, the present application provides a radio monitoring system, comprising: a monitoring device and a monitoring antenna;

[0007] The monitoring device comprises a power module, a communication bus, a switching board, a backplane, and a plurality of expansion slots arranged on the backplane, wherein the power module is used to supply power to the monitoring device, and the expansion slots are used to install hardware boards, wherein the hardware boards include at least a radio frequency board and a baseband board;

[0008] Each of the expansion slots is connected to the power module and the communication bus respectively, and the switch board is connected to the communication bus;

[0009] The monitoring antenna is used to monitor radio signals and transmit the monitored radio signals to the corresponding first radio frequency board according to the frequency band;

[0010] The first radio frequency board is used to receive the radio signal, perform preprocessing operations on the radio signal, and transmit the preprocessed radio signal to the corresponding first baseband board;

[0011] The first baseband board is used in conjunction with the first radio frequency board to obtain the radio signal processed by the first radio frequency board, perform modulation signal processing on the processed radio signal, and transmit the processing result to the switching board;

[0012] The switching board is used to obtain the processing result, determine whether the processing result is abnormal, and if so, determine that the radio signal is an abnormal signal and output the abnormal result.

[0013] Optionally, it also includes:

[0014] A direction-finding antenna array, the direction-finding antenna array is used to receive the abnormal signal and transmit it to the corresponding second radio frequency board;

[0015] The second radio frequency board is used to demodulate the abnormal signal and transmit the demodulated signal to the corresponding second baseband board;

[0016] The second baseband board is used to determine the location of the abnormal signal.

[0017] Optionally, each of the first baseband boards is used in conjunction with a plurality of the first radio frequency boards, and the plurality of first radio frequency boards are respectively frequency sweeping radio frequency boards of different frequency bands;

[0018] The hardware board is connected to the switching board via the communication bus, and the hardware boards are connected to each other via a standard bus SPI bus and a two-wire serial bus I2C bus.

[0019] Optionally, the switch board stores a mapping relationship between each of the expansion slots and the hardware board; the switch board is used to determine that the radio signal is an abnormal signal and determine the hardware board corresponding to processing the abnormal signal based on the mapping relationship and the processing result.

[0020] Optionally, it also includes: a terminal display device, which is connected to the switch board; the terminal display device is used to send operation instructions to the switch board, receive and display the processing results output by the switch board, and if the processing result is the abnormal result, issue an early warning prompt.

[0021] Optionally, the first RF board is used to perform any one or more of the following preprocessing operations on the radio signal, the preprocessing operation including: signal preselection operation, filtering operation, power amplification operation and frequency conversion operation, and transmit the processed radio signal to the corresponding first baseband board.

[0022] Optionally, the monitoring device also includes a device interface, which is a fiber optic interface. The terminal display device is connected to the switch board via the fiber optic interface, and the terminal display device and the switch board use the Transmission Control Protocol / Internet Protocol TCP / IP protocol for data communication.

[0023] Optionally, the switch board is connected to the first baseband board through an independent interface SGMII interface and a high-speed serial computer expansion bus standard PCIe, and uses the TCP / IP protocol for data communication;

[0024] The first baseband board is used to perform any one or more of the following modulation signal processing on the processed radio signal, and the modulation signal processing includes: analog-to-digital conversion processing, digital filtering operation, digital down-conversion operation and communication protocol parsing operation, and transmit the processing result to the switching board.

[0025] Optionally, the first baseband board and the first radio frequency board perform data communication via a serial peripheral interface (SPI) interface.

[0026] Optionally, the monitoring antenna array is connected to an input RF interface of the corresponding matching RF board.

[0027] The above technical solution provided by the embodiment of the present application has the following advantages over the prior art: the radio monitoring system provided by the embodiment of the present application includes a monitoring device and a monitoring antenna, the monitoring device includes a power module, a communication bus, a switching board, a backplane, and a plurality of expansion slots arranged on the backplane, the expansion slots are used to install hardware boards, wherein the hardware boards include at least one radio frequency board or one baseband board, it can be seen that the monitoring device of the present application includes a plurality of expansion slots, which can monitor radio signals of multiple frequency bands at the same time, and can be flexibly upgraded and expanded according to user needs, so that users do not need to purchase new monitoring devices and signal processing systems corresponding to the new monitoring devices, thereby improving the system scheduling capability, reducing user costs, and improving user experience. Moreover, after the system completes the processing of the radio signal monitored by the monitoring antenna, if the radio signal is an abnormal signal, the abnormal result is output, and the user can take corresponding improvement measures according to the abnormal result to improve the stability and smoothness of the radio signal, or determine whether there is an interference signal according to the abnormal result, and further take corresponding anti-interference measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0029] In order to more clearly illustrate the embodiments of the present invention 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 This is a schematic diagram of the first structure of the radio monitoring system in the embodiment of the present application;

[0031] Figure 2 This is a schematic diagram of the first structure of the monitoring device in the embodiment of the present application;

[0032] Figure 3 This is a schematic diagram of the structure of the frequency sweeping RF board in different frequency bands in the embodiment of the present application;

[0033] Figure 4 This is a schematic diagram of the slot installation structure in the embodiment of the present application;

[0034] Figure 5 This is a second structural diagram of the radio monitoring system in an embodiment of the present application;

[0035] Figure 6 This is a sixth structural diagram of the radio monitoring system in the embodiment of the present application;

[0036] Figure 7 This is a schematic diagram of the second structure of the monitoring device in the embodiment of the present application. DETAILED DESCRIPTION

[0037] 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, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0038] The present application provides a radio monitoring system, which can be applied to various industries of radio monitoring, such as Figure 1 As shown, the system includes: a monitoring device 101 and a monitoring antenna 102;

[0039] Monitoring equipment 101 such as Figure 2 As shown, it includes a power module 201, a communication bus 202, a switching board 203, a backplane 204, and a plurality of expansion slots 205 arranged on the backplane 204. The power module 201 is used to supply power to the monitoring device 101, and the expansion slots 205 are used to install hardware boards. The hardware boards include at least one radio frequency board 206 or one baseband board 207.

[0040] Among them, Figure 2 In the figure, two expansion slots 205, two RF boards 206 and two baseband boards 207 are used as examples for illustration, but it should be noted that this is only an example and is not used to limit the protection scope of the present application. It can also be any other expansion slots 205, any RF boards 206 and any baseband boards 207, which are not listed one by one here.

[0041] Each expansion slot 205 is connected to the power module 201, each expansion slot 205 is connected to the communication bus 202, and the switch board 203 is connected to the communication bus 202;

[0042] The monitoring antenna 102 is used to monitor radio signals, and transmit the monitored radio signals to the first radio frequency board according to the frequency band;

[0043] The first radio frequency board is used for receiving radio signals, performing preprocessing operations on the radio signals, and transmitting the preprocessed radio signals to the corresponding first baseband board;

[0044] The first baseband board is used in conjunction with the first radio frequency board to obtain the radio signal processed by the first radio frequency board, perform modulation signal processing on the processed radio signal, and transmit the processing result to the switching board;

[0045] The switching board 203 is used to obtain the processing result, determine whether the processing result is abnormal, and if so, determine that the radio signal is an abnormal signal and output the abnormal result.

[0046] Specifically, the first baseband board may use digital signal processing technology (Digital Signal Process, DSP for short) to perform modulation signal processing on the processed radio signal.

[0047] In a specific embodiment, the first radio frequency board is used to receive a radio signal, perform any one or more of the following preprocessing operations on the radio signal, and transmit the preprocessed radio signal to the corresponding first baseband board, and the preprocessing operations include: signal preselection operation, filtering operation, power amplification operation and frequency conversion operation.

[0048] In a specific embodiment, Figure 3As shown, each first baseband board is used in conjunction with multiple first radio frequency boards, and the multiple first radio frequency boards are respectively frequency sweep radio frequency boards of different frequency bands. When N groups of hardware boards are inserted into the expansion slot 205, the hardware boards are connected to the switch board 203 via the communication bus 202, and the hardware boards are connected to each other via a standard bus (Serial Peripheral Interface, referred to as SPI bus) and a two-wire serial bus (Inter-Integrated Circuit, referred to as I2C bus), where N is an integer greater than or equal to 1.

[0049] Among them, Figure 3 In the example, three frequency sweeping RF boards of different frequency bands are used as examples, such as the first frequency sweeping RF board 301, the second frequency sweeping RF board 302 and the third frequency sweeping RF board 303. The first baseband board is used in conjunction with the first frequency sweeping RF board 301, the second frequency sweeping RF board 302 and the third frequency sweeping RF board 303. However, it should be noted that Figure 3 It is only a schematic diagram and is not used to limit the protection scope of the present application. It can be any scanning video board with different frequency bands, which will not be listed here one by one.

[0050] Specifically, the monitoring device 101 includes a basic slot and an expansion slot 205. The basic slot is set on the backplane 204. The basic slot is used to install the original radio frequency board, the original baseband board and the switch board 203; the expansion slot 205 is used to install any one or more radio frequency boards 206, and any one or more baseband boards 207. The following is an example of a total of 8 slots including the basic slot and the expansion slot 205, but it should be noted that the 8 slots here are only examples and are not used to limit the protection scope of this application. It can also be any other number of slots, which will not be listed here one by one.

[0051] Specific as Figure 4 As shown, the switching board 203 is set on the first slot 401, the first RF board 203 is set on the second slot 402, the first baseband board 204 is set on the third slot 403, the second RF board is set on the fourth slot 404, the third RF board is set on the fifth slot 405, the second baseband board is set on the sixth slot 406, the fourth RF board is set on the seventh slot 407, and the fifth RF board is set on the eighth slot 408.

[0052] In a specific embodiment, Figure 5As shown, the system further includes: a terminal display device 501, which is connected to the switching board 203, and the terminal display device 501 can be a computer, a smart TV, etc. The terminal display device 501 is used to send operation instructions to the switching board 203, receive and display the processing results output by the switching board 203, wherein the processing results are sound information, image information, text information, and status information of each board formed after the radio signal is processed by the radio frequency board 206 and the baseband board 207. In addition, if the processing result output by the switching board 203 received by the terminal display device 501 is an abnormal result, an early warning prompt is performed, such as a voice alarm, a message push alarm, etc.

[0053] In a specific embodiment, the switching board 203 stores a mapping relationship between each expansion slot 205 and a hardware board, wherein the mapping relationship includes the slot numbers corresponding to the radio frequency card 206 and the baseband board 207 installed in the basic slot, the frequency bands processed by the radio frequency card 206 and the baseband board 207, and the slot numbers corresponding to the hardware board when installed in the expansion slot 205, the frequency bands processed by the hardware board, and other information.

[0054] Specifically, after the monitoring device 101 is powered on, the switching board 203 reports the mapping relationship to the terminal display device 501 and sends it to the corresponding baseband board 207 .

[0055] Of course, not all hardware boards must work after the monitoring device 101 is powered on. The specific hardware board that needs to work is set on the terminal display device 501 according to the user's needs, and then sent to the switching board 203, and then sent by the switching board 203 to the corresponding baseband board 207, at which time the corresponding baseband board 207 starts working.

[0056] The switching board 203 is used to obtain and output the processing result, and determine whether the processing result is abnormal based on the stored mapping relationship and the processing result. If so, the radio signal is determined to be an abnormal signal and an abnormal result is output. The abnormal result may be caused by the instability of the radio signal itself, or there may be an interference signal that interferes with the monitored radio signal, causing the signal abnormality.

[0057] In a specific embodiment, Figure 6As shown, the system also includes: a direction-finding antenna array 601, which is connected to the corresponding radio frequency board 206; the direction-finding antenna array 601 is used to receive an abnormal signal and transmit the abnormal signal to a second radio frequency board, which is used to demodulate the abnormal signal and transmit the demodulated signal to a corresponding second baseband board, which is used to determine the position of the abnormal signal. Finally, the second baseband board is transmitted to the terminal display device 501 through the switching board 203, and the user takes corresponding strategic measures according to the transmission position displayed by the terminal display device 501 and the signal information of the abnormal signal.

[0058] In a specific embodiment, Figure 7 As shown, the monitoring device 101 also includes a device interface 701, which is a fiber optic interface. The terminal display device 501 is connected to the switch board 203 via the fiber optic interface. The terminal display device 501 and the switch board 203 use the Transmission Control Protocol / Internet Protocol TCP / IP protocol for data communication.

[0059] In a specific embodiment, the switch board 203 is connected to the first baseband board through an independent interface (Serial Gigabit Media Independent Interface, referred to as SGMII interface) and a high-speed serial computer expansion bus standard (peripheral component interconnect express, referred to as PCIe interface), and uses the TCP / IP protocol for data communication. The first baseband board is used to perform any one or more of the following modulation signal processing on the processed radio signal, and the modulation signal processing includes: analog-to-digital conversion processing, digital filtering operation, digital down-conversion operation and communication protocol parsing operation, and transmits the processing result to the switch board 203.

[0060] In a specific embodiment, the baseband board 206 and the radio frequency board 207 perform data communication via an SPI interface.

[0061] In a specific embodiment, the monitoring antenna 102 is connected to an input RF interface of a corresponding matching RF board.

[0062] The radio monitoring system provided in the embodiment of the present application includes a monitoring device and a monitoring antenna. The monitoring device includes a power module, a communication bus, a switching board, a backplane, and a plurality of expansion slots arranged on the backplane. The expansion slots are used to install hardware boards, wherein the hardware boards include at least one radio frequency board or one baseband board. It can be seen that the monitoring device of the present application includes a plurality of expansion slots, which can monitor radio signals of multiple frequency bands at the same time, and can be flexibly upgraded and expanded according to user needs, so that users do not need to purchase new monitoring equipment and a signal processing system corresponding to the new monitoring equipment, thereby improving the system scheduling capability, reducing user costs, and improving user experience. Moreover, after the system completes the processing of the radio signal monitored by the monitoring antenna, if the radio signal is an abnormal signal, the abnormal result is output, and the user can take corresponding improvement measures according to the abnormal result to improve the stability and smoothness of the radio signal, or determine whether there is an interference signal according to the abnormal result, and further take corresponding anti-interference measures.

[0063] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instruction is transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more available media integration. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape, etc.), an optical medium (e.g., a DVD) or a semiconductor medium (e.g., a solid-state hard disk), etc.

[0064] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0065] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A radio monitoring system, characterized in that: include: Monitoring equipment and monitoring antennas; The monitoring device comprises a power module, a communication bus, a switching board, a backplane, and a plurality of expansion slots arranged on the backplane, wherein the power module is used to supply power to the monitoring device, and the expansion slots are used to install hardware boards, wherein the hardware boards include at least a radio frequency board and a baseband board; Each of the expansion slots is connected to the power module and the communication bus respectively, and the switch board is connected to the communication bus; The monitoring antenna is used to monitor radio signals and transmit the monitored radio signals to the corresponding first radio frequency board according to the frequency band; The first radio frequency board is used to receive the radio signal, perform preprocessing operations on the radio signal, and transmit the preprocessed radio signal to the corresponding first baseband board; The first baseband board is used in conjunction with the first radio frequency board to obtain the radio signal processed by the first radio frequency board, perform modulation signal processing on the processed radio signal, and transmit the processing result to the switching board; The switching board is used to obtain the processing result, determine whether the processing result is abnormal, and if so, determine that the radio signal is an abnormal signal and output the abnormal result; Each of the first baseband boards is used in conjunction with multiple first radio frequency boards, and the multiple first radio frequency boards are respectively scanning radio frequency boards of different frequency bands; the hardware board is connected to the switching board through the communication bus, and the hardware boards are connected to each other through a standard bus SPI bus and a two-wire serial bus I2C bus.

2. The radio monitoring system according to claim 1, characterized in that: Also includes: A direction-finding antenna array, the direction-finding antenna array is used to receive the abnormal signal and transmit it to the corresponding second radio frequency board; The second radio frequency board is used to demodulate the abnormal signal and transmit the demodulated signal to the corresponding second baseband board; The second baseband board is used to determine the location of the abnormal signal.

3. The radio monitoring system according to claim 2, characterized in that: The switch board stores the mapping relationship between each of the expansion slots and the hardware board; the switch board is used to determine that the radio signal is an abnormal signal according to the mapping relationship and the processing result, and to determine the hardware board corresponding to processing the abnormal signal.

4. The radio monitoring system according to claim 1, characterized in that: Also includes: A terminal display device is connected to the switch board; the terminal display device is used to send operation instructions to the switch board, receive and display the processing result output by the switch board, and issue an early warning prompt if the processing result is the abnormal result.

5. The radio monitoring system according to claim 4, characterized in that: The first radio frequency board is used to perform any one or more of the following preprocessing operations on the radio signal, and the preprocessing operation includes: signal preselection operation, filtering operation, power amplification operation and frequency conversion operation, and transmit the processed radio signal to the corresponding first baseband board.

6. The radio monitoring system according to claim 5, characterized in that: The monitoring device also includes a device interface, which is a fiber optic interface. The terminal display device is connected to the switch board via the fiber optic interface. The terminal display device and the switch board use the Transmission Control Protocol / Internet Protocol TCP / IP protocol for data communication.

7. The radio monitoring system according to claim 6, characterized in that: The switch board and the first baseband board are connected via an independent interface SGMII interface and a high-speed serial computer expansion bus standard PCIe, and the TCP / IP protocol is used for data communication; The first baseband board is used to perform any one or more of the following modulation signal processing on the processed radio signal, and the modulation signal processing includes: analog-to-digital conversion processing, digital filtering operation, digital down-conversion operation and communication protocol parsing operation, and transmit the processing result to the switching board.

8. The radio monitoring system according to claim 7, characterized in that: The first baseband board and the first radio frequency board perform data communication via a serial peripheral interface SPI interface.

9. The radio monitoring system according to claim 8, characterized in that: The monitoring antenna is connected to the input radio frequency interface of the corresponding matching radio frequency board.

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