Short wave antenna system based on cross matrix device for realizing remote switching

Abstract

The utility model discloses a short wave antenna system based on cross matrix equipment realizes remote switching, include: multichannel short wave receiving antenna and short wave switching matrix, and each short wave receiving antenna is respectively through corresponding optical terminal group with the input of short wave switching matrix electricity is connected, and short wave switching matrix electricity is connected with multiple receiver, still include: set up in each receiver's workstation is used for switching receiver receives different short wave receiving antenna signal's remote switching device, wherein, through communication cable I series connection between each remote switching device, and the remote switching device at the end is connected with short wave switching matrix through communication cable II, the inside of communication cable I and communication cable II all is provided with the power supply wire core, to make short wave switching matrix for each remote switching device power supply through the power supply wire core. The utility model discloses through remote switching device to short wave switching matrix sends antenna switching instruction, to realize to receiver receives different antenna signal's quick switching.

Description

Technical Field

[0001] This utility model belongs to the field of communications, and more specifically, it relates to a shortwave antenna system based on a cross-matrix device for remote switching. Background Technology

[0002] Shortwave communication primarily propagates through the ionosphere, using both ground wave and sky wave propagation paths. Changes in the ionospheric state, climate change, and surrounding electromagnetic interference significantly impact shortwave communication reception performance. Therefore, shortwave receiving antennas must be constructed in suburban areas or on mountaintops far from cities, with multiple antennas deployed for backup. The signals from these multiple antennas are then simultaneously transmitted to the communication center to ensure the reliability of shortwave communication.

[0003] The communication center distributes multiple antenna signals to multiple receivers via a shortwave switching matrix. Each receiver can switch to any one of the multiple antennas for reception. When antenna switching is required, a designated person must operate the system through the shortwave switching matrix's human-machine interface or local management software, making it difficult for receiver operators to perform the switching quickly. It should be noted that the shortwave switching matrix we use here is the TN602 model, which is an antenna sharing device connected in series between 16 antennas and 32 receivers, enabling the switching of shortwave signals from 1.5MHz to 30MHz. The equipment uses an LCD touchscreen for control and display. In actual operation, the receiver and the shortwave switching matrix are far apart. The usual procedure for switching between different antennas is as follows: at least one operator is stationed at the shortwave switching matrix and / or the receiver. When operators are stationed at both the shortwave switching matrix and the receiver, the operator at the receiver requests the operator at the shortwave switching matrix (via internal communication telephone) when the receiver needs to switch antenna signals. The operator at the shortwave switching matrix then sends the corresponding control commands through the human-machine interface on the computer at the cross-matrix. The shortwave switching matrix, based on its internal selected switching circuit and the corresponding communication protocol, enables each receiver to switch any one of the multiple antenna signals. This entire process requires two operators, which is a waste of manpower. If only one operator is stationed at the receiver, the operator needs to travel back and forth between the receiver and the cross-matrix to observe and switch when the receiver needs to switch antenna signals. This makes the entire workflow less smooth, makes it difficult to meet the needs of efficient operation, and greatly reduces work efficiency.

[0004] For example, a shortwave transmission system disclosed in patent application number CN201020604007.1 requires operators to physically walk onto the touchscreen of the digital switching unit to switch antenna signals. This cumbersome process results in low efficiency. Alternatively, operators at each receiver may verbally request the switching from different antenna signals to the digital switching unit operator, who then uses local management software on the unit to perform the switching. Utility Model Content

[0005] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0006] To achieve these objectives and other advantages of this utility model, a shortwave antenna system for remote switching based on a cross-matrix device is provided, comprising: multiple shortwave receiving antennas and a shortwave switching matrix, wherein each shortwave receiving antenna is electrically connected to the input terminal of the shortwave switching matrix through a corresponding optical transceiver unit, and the output terminal of the shortwave switching matrix is ​​electrically connected to multiple receivers, and further comprising: a remote switching device installed at the workstation of each receiver for switching receivers to receive signals from different shortwave receiving antennas;

[0007] The remote switching devices are connected in series via communication cable I, and the remote switching device at the end is connected to the shortwave switching matrix via communication cable II. Both communication cable I and communication cable II are equipped with power supply cores so that the shortwave switching matrix can supply power to each remote switching device.

[0008] Preferably, the remote switching device includes: a power management unit connected to the power supply core, a communication interface unit connected to the shortwave switching matrix via the communication cores of communication cable I and communication cable II, a microprocessor unit communicatively connected to the communication interface unit, an ID configuration unit and an antenna switching switch unit electrically connected to the microprocessor unit;

[0009] The power management unit is electrically connected to the microprocessor unit, and the antenna switching unit is configured as a switch button that matches the number of multiple shortwave receiving antennas.

[0010] Preferably, the ID configuration unit is configured as a DIP switch.

[0011] Preferably, it also includes: an LED indicator that is electrically connected to the microcontroller unit and is used to display the output status of each shortwave receiving antenna.

[0012] This utility model has at least the following beneficial effects: by setting up corresponding remote switching devices at the workstations of each receiver, the remote switching devices are connected to the shortwave switching matrix through communication cable I and communication cable II, and the remote switching devices send antenna switching commands to the shortwave switching matrix to achieve rapid switching of the receivers to receive different antenna signals.

[0013] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached image description:

[0014] Figure 1 This is a schematic diagram of the overall system structure of this utility model;

[0015] Figure 2 This is a connection block diagram of each unit of the remote switching device.

[0016] Reference numerals: 1. Shortwave receiving antenna; 2. Optical transceiver unit; 3. Shortwave switching matrix; 4. Receiver; 5. Remote switching device; 51. Power management unit; 52. Communication interface unit; 53. Microprocessor unit; 54. ID configuration unit; 55. Antenna switching switch unit; 56. LED indicator; 6. Communication cable I; 7. Communication cable II. Detailed implementation method:

[0017] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0018] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0019] It should be noted that in the description of this utility model, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. It does 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.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] like Figure 1-2 The shortwave antenna system shown is a remote switching system based on a cross-matrix device, comprising: multiple shortwave receiving antennas 1 and a shortwave switching matrix 3. Each shortwave receiving antenna 1 is electrically connected to the input terminal of the shortwave switching matrix 3 through a corresponding optical transceiver unit 2. The output terminal of the shortwave switching matrix 3 is electrically connected to multiple receivers 4. The system also includes: a remote switching device 5 installed at the workstation of each receiver 4 for switching the receiver 4 to receive signals from different shortwave receiving antennas 1.

[0023] The remote switching devices 5 are connected in series via communication cable I6. The remote switching device 5 at the end is connected to the shortwave switching matrix 3 via communication cable II7. Both communication cable I6 and communication cable II7 are equipped with power supply cores so that the shortwave switching matrix 3 can supply power to each remote switching device 5.

[0024] Working principle:

[0025] After receiving radio frequency signals, the multi-channel shortwave receiving antenna 1 performs electro-optical conversion through the remote optical transceiver of the corresponding optical transceiver unit 2, converting the electrical signal into an optical signal. The optical signal is then transmitted via optical fiber to the near-end optical transceiver of the optical transceiver unit 2, where it is converted back into an electrical signal. The shortwave switching matrix 3 receives the electrical signal transmitted from the near-end optical transceiver of the optical transceiver unit 2. The shortwave switching matrix 3 has multiple inputs and multiple outputs. Multiple receivers 4 are connected to the outputs of the shortwave switching matrix 3. It can distribute the signal from any one of the shortwave receiving antennas 1 to a designated receiver 4, enabling the receiver 4 to receive the required shortwave signal. A remote switching device 5 is installed at the workstation of each receiver 4. The power supply cores inside communication cables I 6 and II 7 provide power to the remote switching device 5, ensuring its normal operation. Simultaneously, the communication cables also transmit control signals, enabling the remote switching device 5 to communicate with the shortwave switching matrix 3 and achieve remote control functionality. When the operator issues a switching signal command to the remote switching device 5, each remote switching device 5 transmits the command to the shortwave switching matrix 3 via communication cable I 6 and communication cable II 7, controlling the shortwave switching matrix 3 to switch the signal of the designated shortwave receiving antenna 1 to the corresponding receiver 4, thereby realizing the function of remotely switching the receiver 4 to receive signals from different shortwave receiving antennas 1. In this invention, only the remote switching device 5 sends commands to the shortwave switching matrix 3; the internal reception of commands and switching of different antenna output signals within the shortwave switching matrix 3 are existing technologies in the field and will not be elaborated upon here. This invention achieves rapid switching of the receiver 4 to receive different antenna signals by sending antenna switching commands to the shortwave switching matrix 3 via the remote switching device 5. Furthermore, the use of communication cables between the remote switching device 5 and the shortwave switching matrix 3 ensures the stability of signal transmission and effectively prevents signal theft (because in the field of secure communication, to ensure the stability and confidentiality of information, communication cables are generally used for transmission, rather than wireless methods).

[0026] In the above technical solution, the remote switching device 5 includes: a power management unit 51 connected to the power supply core, a communication interface unit 52 connected to the shortwave switching matrix 3 through the communication cores of communication cable I 6 and communication cable II, a microprocessor unit 53 communicatively connected to the communication interface unit 52, an ID configuration unit 54 electrically connected to the microprocessor unit 53, and an antenna switching unit 55.

[0027] The power management unit 51 is electrically connected to the microprocessor unit 53, and the antenna switching unit 55 is configured as a switch button that matches the number of multiple shortwave receiving antennas 1. Using the above technical solution, the communication interface unit 52 is configured as a communication interface circuit, adopting an RS485 bus interface. The communication interface unit 52 is connected to the communication core of communication cable I 6 and communication cable II through the RS485 bus interface to realize the interaction of communication command data. The ID configuration unit 54 configures the ID number that the remote switching device 5 can be identified in the shortwave switching matrix 3, and each remote switching device 5 is set with a unique ID number, so that the shortwave switching matrix 3 can identify which receiver 4's remote switching device 5 sent the antenna switching command. The antenna switching switch unit 55 provides the antenna switching trigger signal to the microprocessor unit 53. At the same time, the microprocessor unit 53, as the core of the remote switching device 5, is communicatively connected to the communication interface unit 52. The antenna switching switch unit 55 is configured as a switch button that matches the number of multiple shortwave receiving antennas 1. When the corresponding switch button is pressed, the switch button provides the antenna switching trigger signal to the microprocessor unit 53, and sends it to the shortwave switching matrix 3 through the communication interface unit 52 to realize the switching of different antenna signals.

[0028] In the above technical solution, the ID configuration unit 54 is configured as a DIP switch. By using a DIP switch as the ID configuration unit, the DIP switch allows for intuitive physical setting, enabling quick ID configuration of each remote switching device 5. Furthermore, as a purely hardware device, the DIP switch avoids the program errors and crashes that can occur during software operation, resulting in better reliability.

[0029] The above technical solution also includes an LED indicator 56 electrically connected to the microcontroller unit for displaying the output status of each shortwave receiving antenna 1. By observing the on / off state of the LED indicator 56, the operating status of each shortwave receiving antenna 1 can be determined. If the LED indicator 56 corresponding to a certain antenna is constantly lit, it indicates that the antenna is currently in a normal and stable signal output state, improving the system's usability.

[0030] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A shortwave antenna system for remote switching based on a cross-matrix device, comprising: A multi-channel shortwave receiving antenna and a shortwave switching matrix, wherein each shortwave receiving antenna is electrically connected to the input terminal of the shortwave switching matrix through a corresponding optical transceiver unit, and the output terminal of the shortwave switching matrix is ​​electrically connected to multiple receivers, characterized in that it further includes: a remote switching device set at the workstation of each receiver for switching receivers to receive signals from different shortwave receiving antennas; The remote switching devices are connected in series via communication cable I, and the remote switching device at the end is connected to the shortwave switching matrix via communication cable II. Both communication cable I and communication cable II are equipped with power supply cores so that the shortwave switching matrix can supply power to each remote switching device.

2. The shortwave antenna system for remote switching based on a cross-matrix device according to claim 1, characterized in that, The remote switching device includes: a power management unit connected to the power supply core, a communication interface unit connected to the shortwave switching matrix via the communication cores of communication cable I and communication cable II, a microprocessor unit communicatively connected to the communication interface unit, an ID configuration unit and an antenna switching switch unit electrically connected to the microprocessor unit; The power management unit is electrically connected to the microprocessor unit, and the antenna switching unit is configured as a switch button that matches the number of multiple shortwave receiving antennas.

3. The shortwave antenna system for remote switching based on a cross-matrix device according to claim 2, characterized in that, The ID configuration unit is configured as a DIP switch.

4. The shortwave antenna system for remote switching based on a cross-matrix device according to claim 2, characterized in that, Also includes: An LED indicator light, electrically connected to the microcontroller unit, is used to display the output status of each shortwave receiving antenna.

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