A real-time anti-jamming detection device and method for short-wave transmitting antenna feeder system

Abstract

The application discloses a kind of real-time anti-interference detection device and method for short wave signaling antenna feeder system.The device includes digital power meter, high-power radio frequency source, directional coupler, radio frequency isolation selector, first-four radio frequency adapter and master control software module.The method is: starting master control software module, performing system parameter assignment;Through high-power radio frequency source network interface remote reading short wave signaling antenna end directional coupler forward and reverse power value, calculate standing wave value, draw standing wave frequency response curve;Carry out data processing, generate evaluation report, and upload to superior information system;Superior information system determines whether real-time monitoring signaling state, if yes, then real-time monitoring signaling state;Otherwise, close master control software module, end detection.The application realizes real-time, anti-interference monitoring short wave signaling station signaling antenna feeder health status, high safety, strong real-time, high detection accuracy, can accurately feedback the health status of signaling antenna feeder.

Description

Technical Field

[0001] This invention relates to the field of communication electronics technology, and in particular to a real-time anti-interference detection device and method for shortwave transmitting antenna feeder systems. Background Technology

[0002] Shortwave transmitting stations undertake shortwave communication transmission tasks, and the shortwave transmitting antenna feeder is its important signal transmission equipment. Due to impedance mismatch caused by loose connections or aging feeders, feeder loss problems caused by excessive loss after long-term use, and changes in antenna electromagnetic characteristics caused by environmental factors such as dust accumulation and bird nests, the health status of the shortwave transmitting antenna feeder needs to be checked regularly.

[0003] Existing online monitoring systems for shortwave transmitting antennas can collect data in real time, predict faults through big data analysis, and perform condition-based maintenance. However, due to the complex electromagnetic environment of shortwave transmitting stations, using a network analyzer to test shortwave transmitting antennas has two drawbacks: First, the maximum received signal of a network analyzer is only a few hundred milliwatts, and using a network analyzer to test shortwave transmitting antennas at shortwave transmitting stations carries the risk of burning out the network analyzer. Second, in the complex electromagnetic environment of shortwave transmitting stations, the parameters of the transmitting antennas measured by the network analyzer have a certain error compared to the actual state, and cannot accurately reflect the health status of the transmitting antennas.

[0004] Therefore, there is an urgent need to invent a shortwave anti-interference antenna feeder detection system that is highly secure, has strong anti-interference capabilities, high detection accuracy, and does not affect the shortwave transmitting station's transmission mission, so as to realize the measurement of key parameters of the shortwave transmitting antenna feeder and to evaluate the health status of the shortwave transmitting antenna feeder in real time. Summary of the Invention

[0005] The purpose of this invention is to provide a real-time anti-interference detection device and method for shortwave transmitting antenna feeder systems that is highly secure, has strong anti-interference capabilities, and high detection accuracy, without affecting the transmission mission of shortwave transmitting stations.

[0006] The technical solution to achieve the purpose of this invention is: a real-time anti-interference detection device for a shortwave transmitting antenna feeder system, comprising a digital power meter, a high-power radio frequency source, a directional coupler, a radio frequency isolation selector, a first radio frequency adapter, a second radio frequency adapter, a third radio frequency adapter, a fourth radio frequency adapter, and a main control software module;

[0007] One end of the digital power meter is connected to the output of the transmitter, and the other end of the digital power meter is connected to the first end of the radio frequency isolation selector through the first radio frequency adapter.

[0008] The second end of the radio frequency isolation selector is connected to one end of the transmitting antenna feeder route through the second radio frequency adapter, the other end of the transmitting antenna feeder route is connected to the first end of the directional coupler through the third radio frequency adapter, and the second end of the directional coupler is connected to the transmitting antenna through the fourth radio frequency adapter.

[0009] The output terminal of the high-power radio frequency source is connected to the third terminal of the radio frequency isolation selector;

[0010] The main control software module is connected to the transmitter, the digital power meter and the high-power radio frequency source respectively, and the main control software module is connected to the upper-level information system through the network port;

[0011] The main control software module is used to control the high-power radio frequency source to transmit at a set frequency, and to read the forward power data and reverse power data sent by the high-power radio frequency source and the directional coupler to calculate the loss of the feed link and the standing wave ratio of the transmitting antenna, perform data analysis and processing, and issue a health report of the transmitting antenna feed to the superior information system.

[0012] Furthermore, the device is used to detect the transmission loss parameters from the shortwave transmitter to the shortwave transmitting antenna and the standing wave ratio (VSWR) parameters of the shortwave transmitting antenna in real time, so as to monitor the health status of the shortwave transmitting antenna feed in real time.

[0013] Furthermore, the radio frequency isolation selector includes a DC blocking high-power circuit breaker, a radio frequency coaxial relay, and a radio frequency circuit breaker;

[0014] The normally closed contact of the RF coaxial relay is directly connected to the DC blocking high-power circuit breaker, and the normally open contact of the RF coaxial relay is connected to the DC blocking high-power circuit breaker through the RF circuit breaker. The RF coaxial relay controls the opening and closing of the RF isolation selector.

[0015] Furthermore, the directional coupler is disposed at the root of the transmitting antenna to monitor the forward and reverse power at the transmitting antenna end in real time and transmit the monitoring data back via a coaxial cable.

[0016] Furthermore, the main control software module includes a shortwave transmission feeder route loss measurement unit, used to measure the loss of the entire feeder route from the switching cabinet to the antenna root.

[0017] Furthermore, the main control software module includes a fault protection unit, which is used to control the radio frequency isolation selector to keep the feeder route unobstructed when the detection function fails, so as to ensure that the normal operation of the transmitting feeder system is not affected.

[0018] Furthermore, the main control software module includes a network remote monitoring unit, which is used to monitor and control multiple transmitting antenna feeder systems of one or more stations within a local area network through local PC software or remote PC software.

[0019] Furthermore, the main control software module also includes a data synchronization unit and a data query and export unit; the data synchronization unit is used to synchronize the measurement data between the local PC software and the remote PC software; the data query and export unit is used to provide query and export functions for monitoring data.

[0020] A real-time anti-interference detection method for a shortwave transmitting antenna feeder system, applied to the aforementioned device, includes the following steps:

[0021] Step 1: Start the main control software module and assign system parameters;

[0022] Step 2: Detect the current working status of the transmitter. If the transmitter has a transmission task, the high-power radio frequency source controls the radio frequency coaxial relay to the normally closed state. The forward and reverse power values ​​of the directional coupler at the shortwave transmitting antenna end are remotely read through the network port of the high-power radio frequency source, and the standing wave value is calculated.

[0023] Step 3: If the transmitter has no transmitting task, the high-power RF source controls the RF coaxial relay to the normally open state. The high-power RF source is remotely controlled through the network port to switch frequencies and transmit by keying according to the set frequency steps. The forward and reverse power values ​​of the directional coupler at the antenna end are read, the standing wave value is calculated, and the standing wave frequency response curve of the shortwave transmitting antenna is plotted according to the frequency steps.

[0024] Step 4: Process the data, compare it with historical records, generate an evaluation report, and upload it to the superior information system;

[0025] Step 5: The upper-level information system determines whether to monitor the transmission status in real time. If so, return to step 2 to monitor the transmission status in real time; otherwise, set the RF coaxial relay to the normally closed state, and prompt the user to close the main control software module and end the detection.

[0026] Furthermore, in step 3, when the transmitter has no transmitting task, the main control software module is also used to read the power value output by the high-power RF source and, in combination with the power value read by the antenna-end directional coupler, calculate the feed link loss from the RF isolation selector to the antenna root.

[0027] Compared with the prior art, the present invention has the following significant advantages: (1) It can monitor the current status of the shortwave transmitting antenna feeder under the transmission status of other shortwave transmitting antennas at the transmitting station, without affecting the transmission mission of the shortwave transmitting station, and realizes real-time, anti-interference monitoring of the health status of the shortwave transmitting antenna feeder; (2) It controls the high-power radio frequency source to transmit at the set frequency through the radio frequency isolation selector and radio frequency adapter, reads the positive and negative power data sent by the high-power radio frequency source and directional coupler, and obtains the health status report of the transmitting antenna feeder through data analysis and processing, without the risk of burning out the instrument, and has high safety; (3) It evaluates the health status of the shortwave transmitting antenna feeder in real time by measuring the key parameters of the shortwave transmitting antenna feeder, with strong real-time performance and high detection accuracy, and can accurately reflect the health status of the transmitting antenna feeder. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a real-time anti-interference detection device for a shortwave transmitting antenna feeder system according to the present invention.

[0029] Figure 2 This is a flowchart illustrating a real-time anti-interference detection method for a shortwave transmitting antenna feeder system according to the present invention. Detailed Implementation

[0030] It is readily understood that, based on the technical solution of this invention, those skilled in the art can conceive of various embodiments of this invention without altering its essential spirit. Therefore, the following specific embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of this invention or as limitations or restrictions on its technical solution.

[0031] This invention provides a real-time anti-interference detection device for a shortwave transmitting antenna feeder system, comprising a digital power meter, a high-power radio frequency source, a directional coupler, a radio frequency isolation selector, a first radio frequency adapter, a second radio frequency adapter, a third radio frequency adapter, a fourth radio frequency adapter, and a main control software module;

[0032] One end of the digital power meter is connected to the output of the transmitter, and the other end of the digital power meter is connected to the first end of the radio frequency isolation selector through the first radio frequency adapter.

[0033] The second end of the radio frequency isolation selector is connected to one end of the transmitting antenna feeder route through the second radio frequency adapter, the other end of the transmitting antenna feeder route is connected to the first end of the directional coupler through the third radio frequency adapter, and the second end of the directional coupler is connected to the transmitting antenna through the fourth radio frequency adapter.

[0034] The output terminal of the high-power radio frequency source is connected to the third terminal of the radio frequency isolation selector;

[0035] The main control software module is electrically connected to the transmitter, the digital power meter and the high-power radio frequency source respectively, and the main control software module is connected to the upper-level information system through the network port;

[0036] The main control software module is used to control the high-power radio frequency source to transmit at a set frequency, and to read the forward power data and reverse power data sent by the high-power radio frequency source and the directional coupler to calculate the loss of the feed link and the standing wave ratio of the transmitting antenna, perform data analysis and processing, and issue a health report of the transmitting antenna feed to the superior information system.

[0037] As a specific example, the device is used to detect the transmission loss parameters from the shortwave transmitter to the shortwave transmitting antenna and the standing wave ratio (VSWR) parameters of the shortwave transmitting antenna in real time, so as to monitor the health status of the shortwave transmitting antenna feeder in real time.

[0038] As a specific example, the RF isolation selector includes a DC blocking high-power circuit breaker, an RF coaxial relay, and an RF circuit breaker;

[0039] The normally closed contact of the RF coaxial relay is directly connected to the DC blocking high-power circuit breaker, and the normally open contact of the RF coaxial relay is connected to the DC blocking high-power circuit breaker through the RF circuit breaker. The RF coaxial relay controls the opening and closing of the RF isolation selector.

[0040] As a specific example, the directional coupler is disposed at the root of the transmitting antenna to monitor the forward and reverse power at the transmitting antenna end in real time and transmit the monitoring data back via a coaxial cable.

[0041] As a specific example, the main control software module includes a shortwave transmission feeder route loss measurement unit, used to measure the loss of the entire feeder route from the switching cabinet to the antenna root.

[0042] As a specific example, the main control software module includes a fault protection unit, which is used to control the radio frequency isolation selector to keep the feeder route unobstructed when the detection function fails, so as to ensure that the normal operation of the transmitting feeder system is not affected.

[0043] As a specific example, the main control software module includes a network remote monitoring unit, which is used to monitor and control multiple sets of transmitting antenna feeder systems of one or more stations within a local area network through local PC software or remote PC software.

[0044] As a specific example, the main control software module also includes a data synchronization unit and a data query and export unit; the data synchronization unit is used to synchronize the measurement data between the local PC software and the remote PC software; the data query and export unit is used to provide query and export functions for monitoring data.

[0045] The present invention also provides a real-time anti-interference detection method for a shortwave transmitting antenna feeder system, applied to the aforementioned device, comprising the following steps:

[0046] Step 1: Start the main control software module and assign system parameters;

[0047] Step 2: Detect the current working status of the transmitter. If the transmitter has a transmission task, the high-power radio frequency source controls the radio frequency coaxial relay to the normally closed state. The forward and reverse power values ​​of the directional coupler at the shortwave transmitting antenna end are remotely read through the network port of the high-power radio frequency source, and the standing wave value is calculated.

[0048] Step 3: If the transmitter has no transmitting task, the high-power RF source controls the RF coaxial relay to the normally open state. The high-power RF source is remotely controlled through the network port to switch frequencies and transmit by keying according to the set frequency steps. The forward and reverse power values ​​of the directional coupler at the antenna end are read, the standing wave value is calculated, and the standing wave frequency response curve of the shortwave transmitting antenna is plotted according to the frequency steps.

[0049] Step 4: Process the data, compare it with historical records, generate an evaluation report, and upload it to the superior information system;

[0050] Step 5: The upper-level information system determines whether to monitor the transmission status in real time. If so, return to step 2 to monitor the transmission status in real time; otherwise, set the RF coaxial relay to the normally closed state, and prompt the user to close the main control software module and end the detection.

[0051] As a specific example, in step 3, when the transmitter has no transmitting task, the main control software module is also used to read the power value output by the high-power RF source and, in combination with the power value read by the antenna-end directional coupler, calculate the feed link loss from the RF isolation selector to the antenna root.

[0052] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0053] Example

[0054] The transmitting station described in this embodiment operates in a harsh environment. Its shortwave transmitting antenna system, including the transmission feeder and transmitting antenna, operates in a high-temperature and high-humidity environment for several months each year, resulting in a high probability of failure. To help users obtain the health status of the shortwave transmitting antenna system in a timely and convenient manner, the device and method of this invention are used to detect the transmission loss parameters from the shortwave transmitter to the shortwave transmitting antenna and the VSWR parameters of the shortwave transmitting antenna in real time. This allows for real-time monitoring of the health status of the shortwave transmitting antenna, enabling users to remotely, in real-time, and accurately monitor the status of the shortwave transmitting antenna and promptly identify and resolve problems.

[0055] like Figure 1 As shown, the present invention provides a real-time anti-interference detection device for a shortwave transmitting antenna feeder system, comprising a digital power meter, a high-power radio frequency source, a directional coupler, a radio frequency isolation selector, first to fourth radio frequency adapters, and a main control software module;

[0056] One end of the digital power meter is connected to the output of the transmitter, and the other end is connected to one end of the RF isolation selector via a first RF adapter. The other end of the RF isolation selector is connected to one end of the transmitting antenna feeder via a second RF adapter. The other end of the transmitting antenna feeder is connected to one end of the directional coupler via a third RF adapter. The other end of the directional coupler is connected to the transmitting antenna via a fourth RF adapter. The high-power RF source is connected to the RF isolation selector. The transmitter, digital power meter, and high-power RF source are all connected to the main control software module, which is connected to the upper-level information system via a network port.

[0057] The main control software module controls the high-power radio frequency source to transmit at a set frequency, reads the forward and reverse power data sent by the high-power radio frequency source and the directional coupler, calculates the loss of the feed link and the standing wave ratio of the transmitting antenna, performs data analysis and processing, and issues a health report of the transmitting antenna feed to the superior information system.

[0058] As a specific example, the device can detect the transmission loss parameters from the shortwave transmitter to the shortwave transmitting antenna and the standing wave ratio (VSWR) parameters of the shortwave transmitting antenna in real time, and monitor the health status of the shortwave transmitting antenna feeder in real time.

[0059] As a specific example, the RF isolation selector includes a DC blocking high-power circuit breaker, an RF coaxial relay, and an RF circuit breaker;

[0060] The normally closed contact of the radio frequency coaxial relay is directly connected to the DC blocking high-power circuit breaker, and the normally open contact is connected to the DC blocking high-power circuit breaker through the radio frequency circuit breaker. The opening and closing of the radio frequency isolation selector is controlled by the radio frequency coaxial relay.

[0061] As a specific example, the main control software module includes the following functions:

[0062] (1) Shortwave transmission feeder loss measurement function: loss measurement of the entire feeder route from the switching cabinet to the antenna root;

[0063] (2) Shortwave transmitter output power measurement function: Real-time online detection of the working status of the shortwave transmitter and acquisition of the forward and reverse power output of the shortwave transmitter;

[0064] (3) Antenna root VSWR measurement function: Real-time monitoring of the forward and reverse power and VSWR at the shortwave transmitting antenna end, and transmitting the monitoring data back to the equipment room via coaxial cable;

[0065] (4) Data query and export: The monitoring data of the above monitoring functions can be queried and exported;

[0066] (5) Data synchronization: It can realize the synchronization of measurements and data between local PC software and remote PC software;

[0067] (6) Fault protection function: When the monitoring function fails, the feeder route should be kept unobstructed, that is, the normal operation of the transmitting feeder system should not be affected;

[0068] (7) Network remote monitoring: It has a local area network monitoring function, and can be operated through local PC software and remote PC software. It can monitor and control multiple sets of transmitting antenna feeder systems of multiple stations in the local area network.

[0069] (8) The system connects to the superior information system to report information and receive remote control.

[0070] like Figure 2 As shown, a real-time anti-interference detection method for a shortwave transmitting antenna feeder system includes the following steps:

[0071] Step 1: Start the main control software module and assign system parameters;

[0072] Step 2: Detect the current working status of the transmitter. If the transmitter has a transmission task, the high-power radio frequency source controls the radio frequency coaxial relay to the normally closed state. The forward and reverse power values ​​of the directional coupler at the shortwave transmitting antenna end are remotely read through the network port of the high-power radio frequency source, and the standing wave value is calculated.

[0073] Step 3: If the transmitter has no transmitting task, the high-power RF source controls the RF coaxial relay to the normally open state. The high-power RF source is remotely controlled through the network port to switch frequencies and transmit by keying according to the set frequency steps. The forward and reverse power values ​​of the directional coupler at the antenna end are read, the standing wave value is calculated, and the standing wave frequency response curve of the shortwave transmitting antenna is plotted according to the frequency steps.

[0074] Step 4: Process the data, compare it with historical records, generate an evaluation report, and upload it to the superior information system;

[0075] Step 5: The upper-level information system determines whether to monitor the transmission status in real time. If so, return to step 2 to monitor the transmission status in real time; otherwise, set the RF coaxial relay to the normally closed state, and prompt the user to close the main control software module and end the detection.

[0076] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A real-time anti-interference detection device for a shortwave transmitting antenna feeder system, characterized in that, It includes a digital power meter, a high-power RF source, a directional coupler, an RF isolation selector, a first RF adapter, a second RF adapter, a third RF adapter, a fourth RF adapter, and a main control software module; One end of the digital power meter is connected to the output of the transmitter, and the other end of the digital power meter is connected to the first end of the radio frequency isolation selector through the first radio frequency adapter. The second end of the radio frequency isolation selector is connected to one end of the transmitting antenna feeder route through the second radio frequency adapter, the other end of the transmitting antenna feeder route is connected to the first end of the directional coupler through the third radio frequency adapter, and the second end of the directional coupler is connected to the transmitting antenna through the fourth radio frequency adapter. The output terminal of the high-power radio frequency source is connected to the third terminal of the radio frequency isolation selector; The main control software module is connected to the transmitter, the digital power meter and the high-power radio frequency source respectively, and the main control software module is connected to the upper-level information system through the network port; The main control software module is used to control the high-power radio frequency source to transmit at a set frequency, and to read the forward power data and reverse power data sent by the high-power radio frequency source and the directional coupler to calculate the loss of the feed link and the standing wave ratio of the transmitting antenna, perform data analysis and processing, and issue a health report of the transmitting antenna feed to the superior information system.

2. The real-time anti-interference detection device for a shortwave transmitting antenna feeder system according to claim 1, characterized in that, The device is used to detect the transmission loss parameters from the shortwave transmitter to the shortwave transmitting antenna and the standing wave ratio (VSWR) parameters of the shortwave transmitting antenna in real time, so as to monitor the health status of the shortwave transmitting antenna feeder in real time.

3. The real-time anti-interference detection device for a shortwave transmitting antenna feeder system according to claim 1, characterized in that, The radio frequency isolation selector includes a DC high-power circuit breaker, a radio frequency coaxial relay, and a radio frequency circuit breaker. The normally closed contact of the RF coaxial relay is directly connected to the DC blocking high-power circuit breaker, and the normally open contact of the RF coaxial relay is connected to the DC blocking high-power circuit breaker through the RF circuit breaker. The RF coaxial relay controls the opening and closing of the RF isolation selector.

4. The real-time anti-interference detection device for a shortwave transmitting antenna feeder system according to claim 1, characterized in that, The directional coupler is located at the root of the transmitting antenna and is used to monitor the forward and reverse power of the transmitting antenna in real time, and to transmit the monitoring data back via a coaxial cable.

5. The real-time anti-interference detection device for a shortwave transmitting antenna feeder system according to claim 1, characterized in that, The main control software module includes a shortwave transmission feeder route loss measurement unit, used to measure the loss of the entire feeder route from the switching cabinet to the antenna root.

6. The real-time anti-interference detection device for a shortwave transmitting antenna feeder system according to claim 1, characterized in that, The main control software module includes a fault protection unit, which is used to control the radio frequency isolation selector to keep the feeder route unobstructed when the detection function fails, so as to ensure that the normal operation of the transmitting feeder system is not affected.

7. The real-time anti-interference detection device for a shortwave transmitting antenna feeder system according to claim 1, characterized in that, The main control software module includes a network remote monitoring unit, which is used to monitor and control multiple transmitting antenna feeder systems of one or more stations within a local area network through local PC software or remote PC software.

8. The real-time anti-interference detection device for a shortwave transmitting antenna feeder system according to claim 1, characterized in that, The main control software module also includes a data synchronization unit and a data query and export unit; the data synchronization unit is used to synchronize the measurement data between the local PC software and the remote PC software; the data query and export unit is used to provide query and export functions for monitoring data.

9. A real-time anti-interference detection method for a shortwave transmitting antenna feeder system, applied to the device described in any one of claims 1 to 8, characterized in that, Includes the following steps: Step 1: Start the main control software module and assign system parameters; Step 2: Detect the current working status of the transmitter. If the transmitter has a transmission task, the high-power radio frequency source controls the radio frequency coaxial relay to the normally closed state. The forward and reverse power values ​​of the directional coupler at the shortwave transmitting antenna end are remotely read through the network port of the high-power radio frequency source, and the standing wave value is calculated. Step 3: If the transmitter has no transmitting task, the high-power RF source controls the RF coaxial relay to the normally open state. The high-power RF source is remotely controlled through the network port to switch frequencies and transmit by keying according to the set frequency steps. The forward and reverse power values ​​of the directional coupler at the antenna end are read, the standing wave value is calculated, and the standing wave frequency response curve of the shortwave transmitting antenna is plotted according to the frequency steps. Step 4: Process the data, compare it with historical records, generate an evaluation report, and upload it to the superior information system; Step 5: The upper-level information system determines whether to monitor the transmission status in real time. If so, return to step 2 to monitor the transmission status in real time; otherwise, set the RF coaxial relay to the normally closed state, and prompt the user to close the main control software module and end the detection.

10. The real-time anti-interference detection method for a shortwave transmitting antenna feeder system according to claim 9, characterized in that, In step 3, when the transmitter has no transmitting task, the main control software module is also used to read the power value output by the high-power radio frequency source and, in combination with the power value read by the antenna-end directional coupler, calculate the feed link loss from the radio frequency isolation selector to the antenna root.

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