Long-wave wide-frequency-band portable transmitting system, transmitter and communication system

Abstract

The invention relates to a long-wave wide-frequency-band portable transmitting system, a transmitter and a communication system, and relates to the field of long-wave transmitting, and the method comprises an excitation unit 100 which is used for generating a first radio frequency signal; the power amplification unit 200 is used for acquiring the first radio frequency signal and generating a power amplification signal; the matching unit 300 is used for performing power combination based on the power amplification signal output by the power amplification unit 200 and outputting a power combination signal; the measuring unit 500 is used for acquiring the power combined signal, measuring a voltage value and a current value and obtaining a real-time voltage value and a real-time current value; and the control and protection unit 600 is used for acquiring signals output by the power amplifier unit 200 and the measurement unit 500 in real time, and dynamically adjusting the output power of the power amplifier unit (200) in response to a signal sending demand to realize full-power output. The beneficial effects of the invention are that long-wave wide-frequency-band transmission is realized, the transmission efficiency is improved, the transmission quality is improved, the equipment is miniaturized, the transmission portability is improved, dual-path operation control is realized, and the transmission stability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of long-wave transmitters, and in particular to a long-wave broadband portable transmitting system, a transmitter and a communication system. Background Art

[0002] In the field of radio communications, the application of long-wave broadband portable transmission systems is becoming more and more widespread. The long-wave frequency band refers to electromagnetic waves with a wavelength range of 10 to 1 km (frequency of 30 to 300 kHz). Long waves refer to electromagnetic waves with a frequency lower than 300 kHz. The characteristics of long waves are long transmission distance and small signal attenuation. They are used for ocean communications, medium and long-distance communications, and long-distance navigation. Long-wave transmitters basically transmit signals at a single frequency or at several frequency points on a frequency band. In order to enable the transmission system to realize the transmission function with the greatest efficiency, the switch switching mode is currently mostly used to achieve the preset state. To realize this preset function, more equipment is required, the area occupied is relatively large, and it is inconvenient to maintain. It is difficult to achieve the broadband transmission requirements by simply changing the hardware. Therefore, it is urgent to develop a long-wave broadband portable transmission system that is compact, stable, and easy to carry. Summary of the invention

[0003] In view of the above problems, the present application is proposed to provide a long-wave wide-band portable messaging system, a transmitter and a communication system that overcome the above problems or at least partially solve the above problems.

[0004] According to one aspect of the present application, a long-wave broadband portable signaling system is provided, the system comprising: Excitation unit 100, power amplifier unit 200, matching unit 300, debugging unit 400, measuring unit 500, control and protection unit 600, power supply unit 700; The excitation unit 100 is used to generate a first radio frequency signal; The power amplifier unit 200 is used to obtain the first radio frequency signal output by the excitation unit 100 and generate a power amplified signal; The matching unit 300 is used to perform power combination based on the power amplified signal output by the power amplifier unit 200, and output a power combined signal; The measuring unit 500 is used to obtain the power combination signal output by the matching unit 300, measure the voltage value and the current value, and obtain the real-time voltage value and the current value; The control and protection unit 600 is used to collect the signals output by the power amplifier unit 200 and the measuring unit 500 in real time, set the impedance matching value of the debugging unit 400 in response to the signal transmission demand, and dynamically adjust the output power of the power amplifier unit 200 to achieve full power output; The power supply unit 700 is used to supply power to the signaling system.

[0005] Optionally, in the above system, the excitation unit 100 is a signal generator.

[0006] Optionally, in the above system, it is characterized in that the power amplifier unit 200 includes a first power amplifier unit and a second power amplifier unit; The first power amplifier unit includes a two-stage push-pull amplifier circuit, the first amplifier circuit is a triode, the second amplifier circuit is a field effect transistor, and the two-stage amplifiers are isolated and cascaded through a transformer; The second power amplifier unit includes three power amplifiers, which are independent of each other and can be used individually or in combination.

[0007] Optionally, in the above system, the matching unit 300 includes three power synthesis transformers, which correspond one-to-one to the three power amplifiers in the second power amplifier unit. The power amplifier outputs are connected to the primary of the power synthesis transformer and are independent of each other. The secondary of the power synthesis transformer is connected in series.

[0008] Optionally, in the above system, the measuring unit 500 includes a mutual inductor, a measuring board, and an isolation transmitter, which is used to convert the power combination signal into a secondary voltage and current signal, and realize the measurement of the voltage value and the current value through the measuring board.

[0009] Optionally, in the above system, the control and protection unit 600 includes: a collection module, a control module and a human-computer interaction terminal, the collection module is connected to the second power amplifier unit and the measurement board, the control module calculates the real-time output voltage value and current value based on the voltage value and current value of the collection measurement board, and responds to the signaling demand by adjusting the output power of the second power amplifier unit to achieve full-power signaling; In response to the signaling demand, the output of the second power amplifier unit is adjusted through the human-computer interaction terminal to achieve full-power signaling including: status display, parameter setting, and power supply control; The status display includes output voltage value, output current value, output power value, power supply low voltage state, power supply high voltage state, and power amplifier state; Parameter setting includes setting the power supply high voltage value, power value, and load value; The power supply control includes controlling the high voltage value of the power supply of the second power amplifier unit, which specifically includes manual control and automatic control.

[0010] Optionally, in the above system, the power supply unit 700 includes a high-power DC power supply module, a low-voltage power supply module and a basic power supply module. The high-power DC power supply module is used to provide real-time variable output power for the second power amplifier unit, and the voltage output by the high-power DC power supply module is an adjustable voltage. The low-voltage power supply module is used to supply low voltage to the first power amplifier unit and the second power amplifier unit, and the voltage output by the low-voltage power supply module is a fixed value. The basic power supply module supplies power to the signaling system, and a 220V power supply is selected.

[0011] According to another aspect of the present application, a long-wave broadband portable transmitter is provided, comprising a power amplifier cabinet, a power control cabinet, a dummy load, and an antenna, wherein the power amplifier unit 200 as described in any of the above items is arranged in the power amplifier cabinet, the power supply unit 700 as described in any of the above items is arranged in the power control cabinet, and the debugging unit 400 as described in any of the above items is arranged in the dummy load; The dummy load includes a debugging unit 400 and a chassis. The debugging unit 400 includes a resistor rack, which adaptively adjusts the impedance value to achieve impedance matching and debugging and maintenance. The antenna is set according to the impedance matching value of the debugging unit 400 .

[0012] According to another aspect of the present application, there is provided a long-wave wide-band portable communication control software, comprising: a host computer, and a human-computer interaction terminal as described above; Both the host computer and the human-machine interaction end of the control and protection unit can realize dual-path operation control; Dual-path operation control includes manual control process and automatic control process.

[0013] According to another aspect of the present application, there is provided a long-wave wide-band portable communication system, comprising: a receiving system, and a long-wave wide-band portable transmitting system as described above; The receiving system is used to receive the signal transmitted by the long-wave wide-band portable transmitting system through the antenna.

[0014] The beneficial effects of this application are: (1) This application can realize long-wave, wide-band, multi-frequency transmission, dynamically adjust the output power value, and achieve full power output.

[0015] (2) This application realizes the miniaturization and portability of the system hardware structure. It reduces the size and weight of the equipment, making it suitable for different workplaces and different task requirements, and easy to carry and use.

[0016] (3) The logic control part of the software of this application is implemented in dual paths, which improves the operation diversity and portability.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation method of the present application is listed below and described in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 A principle block diagram of a long-wave wide-band portable signaling system according to an embodiment of the present application is shown.

[0019] Figure 2 A schematic diagram of a manual control process of a control and protection unit of a long-wave wide-band portable communication system according to an embodiment of the present application is shown.

[0020] Figure 3 A logic flow chart of automatic control of a long-wave wide-band portable signaling system according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other in the absence of conflict. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0022] The idea of ​​the present application is that with the development of different requirements of different users and the security requirements for sending and receiving information, wide-band communication is very necessary. Since long-wave single-frequency or several-frequency signaling requires multiple devices, it occupies a large area and is more complicated to implement by changing the hardware, the present invention can achieve high-efficiency signaling on a long-wave wide-band, and can realize the miniaturization and portability of the signaling system, and ensure the reliability of communication through dual-path control.

[0023] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0024] Figure 1 The schematic diagram of a long-wave broadband portable signaling system according to an embodiment of the present application is shown. The system includes: The excitation unit 100, the power amplifier unit 200, the matching unit 300, the debugging unit 400, the measuring unit 500, the control and protection unit 600, and the power supply unit 700. The radio frequency signal generated by the excitation unit 100 is amplified by the power amplifier unit 200, the matching unit 300 performs power synthesis on the power-amplified signal, the measuring unit 500 is used to detect the voltage value and current value of the output signal of the power amplifier unit 200 in real time, and the control and protection unit adjusts the power output of the power amplifier unit 200 according to the detected value to achieve the purpose of full-power signal transmission.

[0025] Step 101: The excitation unit 100 is used to generate a first radio frequency signal.

[0026] The excitation unit 100 includes a signal generator, which generates an initial signal according to the requirements of the signal transmission system. The signal generator generally includes an oscillator, a waveform adjustment circuit, an amplifier circuit, and an output circuit, and can generate electrical signals of various frequencies, waveforms, and amplitudes, such as triangular waves, square waves, sine waves, sawtooth waves, and modulated waveforms, etc., through the principle of constant current charging and discharging.

[0027] The first radio frequency signal is generated by setting parameters such as impedance, peak-to-peak value, frequency, power, etc. of the signal.

[0028] Step 102: The power amplifier unit 200 is used to obtain the first radio frequency signal output by the excitation unit 100 and generate a power amplification signal.

[0029] The first RF signal generated by the signal generator cannot meet the signal power requirements in wireless communications, radar, satellite communications and other fields. Therefore, it is necessary to amplify the low-power signal to a level sufficient to drive the antenna or other RF components to ensure that the signal can be transmitted over long distances and maintain good reception quality.

[0030] The power amplification of RF signals is mainly carried out by amplifying the signals through electronic devices, such as using triodes and field-effect transistors for amplification, making full use of the respective advantages of triodes and field-effect transistors to improve the amplification efficiency and stability, and amplifying the amplitude of the input signal by controlling the current or voltage, and converting it into a higher power output.

[0031] The power amplifier unit 200 performs power amplification on the first radio frequency signal, and the generated power amplified signal can be transmitted through an antenna.

[0032] Step 103: The matching unit 300 is used to perform power combining based on the power amplified signal output by the power amplifier unit 200, and output a power combined signal.

[0033] A power combining transformer can combine the output power of multiple power amplifiers to generate a higher power output. If a single power amplifier cannot meet the high power demand, the power can be combined and output through a power combining transformer.

[0034] Power combining transformers can also be used for power distribution, distributing one power source to multiple loads to achieve power distribution.

[0035] The power synthesis transformer can realize impedance transformation between symmetry and asymmetry, and can achieve impedance matching with the debugging unit 400 .

[0036] Step 104: The measuring unit 500 is used to obtain the power combination signal output by the matching unit 300, measure the voltage value and the current value, and obtain the real-time voltage value and the current value.

[0037] The measuring unit 500 is used to measure the real-time voltage value and current value of the power combining signal. The measured data is input as feedback to the control and protection unit 600. The real-time voltage value and current value are obtained through voltage measurement and current measurement.

[0038] Step 105: The control and protection unit 600 is used to collect the signals output by the power amplifier unit 200 and the measuring unit 500 in real time, set the impedance matching value of the debugging unit 400 in response to the signal transmission demand, and dynamically adjust the output power of the power amplifier unit 200 to achieve full power output.

[0039] The control and protection unit 600 collects the signals output by the power amplifier unit 200 and the measuring unit 500, and calculates whether the output signal power meets the requirements for signal transmission. If not, the power output of the power amplifier unit 200 is adjusted by debugging the power supply voltage, thereby adjusting the power of the RF output signal of the entire system to achieve full power output.

[0040] Step 106: The power supply unit 700 is used to supply power to the signaling system.

[0041] The power supply unit 700 is used to provide a power supply basis for the entire system, including a basic power supply, an adjustable power supply of the power amplifier unit, and a low-voltage power supply.

[0042] Depend on Figure 1 It can be seen from the method shown that the beneficial effect of the present application is that: by amplifying the power of the first radio frequency signal, and realizing real-time monitoring of the voltage value and current value of the output power amplified signal through the control and protection unit 600, the power supply voltage of the power amplifier unit 200 and the impedance matching value of the debugging unit 400 are adjusted in real time based on the signal transmission requirements, and the parameters of the signal transmission system are corrected. After the signal transmission standard is met, full-power signal transmission is achieved through the antenna. The present application can realize signal transmission at multiple frequency points in the long-wave wide frequency band. The input parameters can be adjusted in real time through the feedback mechanism of the power amplified signal, and the radio frequency signal sent out through the antenna can be corrected to achieve the purpose of full-power transmission. At the same time, the equipment of the present application is miniaturized and can be applied to different workplaces and different task requirements, which greatly improves the portability of the signal transmission system. When operating the entire system, it can be adjusted manually or turned on with one button, which is convenient and quick to meet the signal transmission needs and ensure the reliability of communication.

[0043] In some embodiments of the present application, the above system includes: the excitation unit 100 is a signal generator, the signal generator has a wide frequency range, can cover frequencies from a few hertz to a few gigahertz, and can generate modulation waveforms including triangle waves, square waves, sine waves, sawtooth waves, and amplitude modulation, frequency modulation, phase modulation, etc. For example, the signal generator can output a sine wave signal, control the impedance of the signal to be 50Ω, the peak-to-peak value is set to 1.20V, and there is no DC bias. According to different application scenarios, the excitation unit 100 can set different first RF signals.

[0044] In some embodiments of the present application, the above system includes: the power amplifier unit 200 includes a first power amplifier unit and a second power amplifier unit; The first power amplifier unit includes a two-stage push-pull amplifier circuit, the first amplifier circuit is a triode, the second amplifier circuit is a field effect transistor, and the two-stage amplifiers are isolated and cascaded through a transformer; The second power amplifier unit includes three power amplifiers, which are independent of each other and can be used individually or in combination.

[0045] If the two-stage power amplifier unit generates a 25W power amplification signal output, the two-stage circuits of the first power amplifier unit both use push-pull amplifier circuits for amplification, the first amplifier circuit uses a high-power triode for amplification, and the output power is 2W, the second amplifier circuit uses MOS-FET field effect transistors for amplification, and the output power is 25W. The two-stage amplifier circuits use transformer isolation cascade to meet the front-end signal requirements of the power amplifier.

[0046] During the signal transmission process, the transformer can play a role of filtering and isolation, which can effectively reduce noise and signal distortion and improve the quality and accuracy of the signal.

[0047] The second power amplifier unit is composed of three power amplifiers. If the combined output power of the three power amplifiers is required to be greater than 5kW, a single power amplifier with an output power greater than 1.7kW can be selected. The three power amplifiers are independent of each other and have a completely modular design. The three power amplifiers can be used individually or in combination with each other, and are convenient for interchange and combination derivation of the entire machine.

[0048] In some embodiments of the present application, the above method includes: the matching unit 300 includes three power synthesis transformers, the three power synthesis transformers correspond one-to-one to the three power amplifiers in the second power amplifier unit, the power amplifier outputs are connected to the primary of the power synthesis transformer and are independent of each other, and the secondary of the power synthesis transformer is connected in series.

[0049] The power combining transformer combines the output power of multiple power amplifiers. During the power combining process, the power combining transformer can provide isolation between the power amplifiers, so that when one amplifier fails or the performance changes, it will not affect the operation of other power amplifiers. The power combining transformer can also provide circuit-level isolation to increase the stability and reliability of the system.

[0050] In some embodiments of the present application, the above method includes: the measuring unit 500 includes a mutual inductor, a measuring board, and an isolation transmitter, which is used to convert the power combination signal into a secondary voltage and current signal, and realize the measurement of voltage and current values ​​through the measuring board.

[0051] A transformer is an electrical device that uses the principle of electromagnetic induction to change voltage and current, or isolate circuits. It consists of two or more coils coupled by a common magnetic flux and can be iron-core or non-iron-core. For example, a ferrite core has a high magnetic permeability and can minimize losses at high frequencies. The transformer converts high voltage and high current into low voltage and low current.

[0052] The measurement board is used to measure voltage and current values. A variety of chips can be selected to realize the acquisition of analog voltage and current values, and the voltage and current values ​​can be output in real time through the logical operation of the chip.

[0053] The measuring unit 500 detects the output voltage and output current of the second power amplifier unit in real time, and transmits them to the control and protection device in real time to participate in logic processing. The measuring unit 500 converts the large voltage and large current after the power synthesis of the matching module into a secondary small voltage and small current, and then inputs them into the self-made current measurement board and voltage measurement board, and inputs the measured values ​​into the control and protection unit 600, and obtains the real-time output voltage and output current of the power amplifier component after CPU logic operation.

[0054] For example, the sampled voltage is used as the input of the voltage measurement board through resistor voltage division, the voltage effective value operation is performed through the voltage measurement board, and the collected voltage value is sent to the acquisition module of the control and protection unit (600), and the corresponding output voltage value is obtained through the logic operation in the control module, which specifically includes performing an inverse operation on the voltage value according to the logic of voltage division sampling to obtain the actual output voltage value. The mutual inductor converts the power combined current signal into a secondary current signal, performs an effective value operation on the current through the current measurement board, and sends the collected current value to the acquisition module of the control and protection unit (600), and the corresponding output current value is obtained through the logic operation in the control module, which specifically includes performing an inverse operation on the current value according to the sampling logic to obtain the actual output current value.

[0055] The actual output power value is calculated based on the actual output voltage value and the actual output current value. The specific calculation formula is: P=UI, Among them, U is the actual output voltage value, I is the actual output current value, and P is the actual output power value.

[0056] In some embodiments of the present application, the above method includes: the control and protection unit 600 includes: a collection module, a control module and a human-computer interaction terminal, the collection module is connected to the second power amplifier unit and the measurement board, the control module calculates the real-time output voltage value and current value based on the voltage value and current value of the collection measurement board, and responds to the signaling demand by adjusting the output voltage of the second power amplifier unit to achieve full-power signaling; Among them, in response to the signaling demand, the output of the second power amplifier unit is adjusted through the human-computer interaction terminal to achieve full-power signaling, including: status display, parameter setting, and power supply control; The status display includes output voltage value, output current value, output power value, power supply low voltage state, power supply high voltage state, and power amplifier state; Parameter setting includes setting the power supply high voltage value, power value, and load value; The power supply control includes controlling the high voltage value of the power supply of the second power amplifier unit, which specifically includes manual control and automatic control.

[0057] The low voltage status of the power supply, the high voltage status of the power supply, the power amplifier status, etc. can all be displayed and warned by setting corresponding indicator lights and alarms.

[0058] The low-voltage power supply status indicates the low-voltage power supply status of the first power amplifier unit and the second power amplifier unit in the power amplifier unit. When the power supply is normal, a green indicator light is displayed. When the power supply is abnormal, a red indicator light is displayed. When a system failure occurs, the low-voltage power supply status is troubleshooted first.

[0059] The high voltage power supply status indicates the high voltage power supply status of the second power amplifier unit in the power amplifier unit. By adjusting the high voltage value, the supply voltage of the second power amplifier unit can be increased, thereby increasing the output power of the second power amplifier unit. Specifically, it includes: output voltage overload, output current overload. When the output voltage and output current are normal, green indicator lights are displayed respectively. When the output voltage is overloaded and the output current is overloaded, red indicator lights are displayed respectively.

[0060] When the power supply output is open circuit, overvoltage, overcurrent, or undervoltage, the corresponding red indicator light will be displayed. If the above faults do not occur, the corresponding green indicator light will be displayed. If the high voltage indicator light is green, it means that the high voltage is not on. If the high voltage indicator light is red, it means that the high voltage is on.

[0061] The low voltage status of the power supply is displayed in the following ways: 80 V, 24 V, +12 V, -12 V, and low voltage is normal. If 80 V, 24 V, +12 V, -12 V is normal, a green indicator light will be displayed; if 80 V, 24 V, +12 V, -12 V fails, a red indicator light will be displayed.

[0062] If 80 V, 24 V, +12 V, and -12 V are all normal, the low voltage is normal, and a green indicator light is displayed; if any one of 80 V, 24 V, +12 V, and -12 V fails, the low voltage is a fault and a red indicator light is displayed.

[0063] The power amplifier status display includes: power amplifier overheating. If the temperature of the field effect tube in the second power amplifier unit is overheated, the power amplifier is judged to be overheated and a red indicator light is displayed. If the temperature is normal, a green indicator light is displayed.

[0064] Specifically, if a signal transmission requirement is to transmit a 5kW signal, the first RF signal is generally set to a sine wave signal without DC bias, the peak-to-peak value is set in a signal range, such as 1V-2V, the output power of the first power amplifier unit is set to 2W, and the output power of the second power amplifier unit is set to 25W. The three power amplifiers are superimposed to control the output power to be greater than 5kW, and the output power of a single power amplifier can be selected to be greater than 1.7kW, or various combinations can be used to control the output power to be greater than 5kW. The power supply high voltage value of the second power amplifier unit can be manually adjusted according to the real-time output signal, thereby increasing the output power of the power amplifier unit 200, observing the output power value, and obtaining the power feedback value according to the status display of the human-computer interaction terminal, fine-tuning the power amplifier parameters, and obtaining a full-power signal.

[0065] Specifically, the control process of the control and protection unit 600 includes: Step S1: the acquisition module of the control and protection unit 600 starts to collect the signals output by the power amplifier unit 200 and the measurement unit 500; Step S2: the acquisition module transmits the collected voltage value and current value to the control module; Step S3: The control module calculates the current actual output power based on the collected voltage and current values; Step S4: If the current actual output power is lower than the preset target power, the control module will send a prompt to the user through the human-computer interaction terminal to remind the user to make corresponding parameter adjustments; Step S5: the user adjusts the high voltage value of the power supply of the power amplifier unit 200 through the human-computer interaction terminal; Step S6: After the adjustment is completed, the control module collects new voltage and current values ​​again and recalculates the actual output power; Step S7: Repeat this process until the actual output power reaches the target power, and output the parameters of the power amplifier unit 200.

[0066] Through precise acquisition and feedback mechanisms, the control and protection unit 600 can monitor the status of the power amplifier unit 200 and the measurement unit 500 in real time, and make dynamic adjustments according to actual conditions to ensure that the system is always in the best working state. This method not only improves the stability and reliability of the system, but also greatly shortens the debugging time and improves the efficiency of signaling.

[0067] In some embodiments of the present application, the above-mentioned system includes: the power supply unit 700 includes a high-power DC power supply module and a low-voltage power supply module, the high-power DC power supply module is used for the second power amplifier unit 200, and the low-voltage power supply module is used for low-voltage power supply of the first power amplifier unit 200 and the second power amplifier unit 200.

[0068] The low voltage power supply module provides power for the first power amplifier unit 200 and the second power amplifier unit 200. By changing the power value of the high power DC power supply module, the power amplification output value of the second power amplifier unit 200 can be adjusted.

[0069] According to another aspect of the present application, a long-wave broadband portable transmitter is provided, comprising a power amplifier cabinet, a power control cabinet, a dummy load, and an antenna, wherein the power amplifier unit 200 as described in any of the above items is arranged in the power amplifier cabinet, the power supply unit 700 as described in any of the above items is arranged in the power control cabinet, and the debugging unit 400 as described in any of the above items is arranged in the dummy load; The dummy load includes a debugging unit 400 and a chassis. The debugging unit 400 includes a resistor rack, which adaptively adjusts the impedance value to achieve impedance matching and debugging and maintenance. The antenna is set according to the impedance matching value of the debugging unit 400 .

[0070] The resistor rack includes glass glaze resistors, insulators, resistor plates, and support plates. The resistor rack includes multiple adjustable resistors, and the resistance value can be adjusted to simulate the working conditions under different load conditions. For example, carbon film resistors or metal oxide resistors can be used to ensure good temperature stability and durability. The chassis includes the resistor rack, fan, and control components. The chassis is used to fix and protect the resistor rack to prevent external factors from affecting it. For example, the chassis can be made of aluminum alloy material, which is both light and strong. In addition, a cooling fan can be installed inside the chassis to help the resistor rack dissipate heat and avoid overheating.

[0071] The power amplifier cabinet, power control cabinet, and dummy load chassis all adopt a skeleton structure design, and the skeleton is made of aluminum alloy profiles and tightly combined. All equipment adopts a plug-in structure, which is simple and portable. All components are protected by electroplating chromate to ensure the shielding of the components.

[0072] The antenna can be a monopole antenna or a multipole antenna, or an array antenna. For example, a tunable antenna design can be used so that the length and shape of the antenna can be adjusted according to changes in the actual environment, so as to better adapt to different application scenarios. In addition, a reflective surface or a directional cover can be added to the antenna to enhance the propagation distance and directivity of the signal. For example, a metal mesh can be used as a reflective surface, or a plastic cover can be used as a directional cover to improve the directional gain of the antenna.

[0073] According to another aspect of the present application, there is provided a long-wave wide-band portable communication control software, comprising: a host computer, and a human-computer interaction terminal as described above; Both the host computer and the human-machine interaction end of the control and protection unit can realize dual-path operation control; Dual-path operation control includes manual control process and automatic control process.

[0074] The host computer can be connected to the human-machine interaction terminal by wired or wireless means to realize remote monitoring and control. For example, an Ethernet interface or a Wi-Fi module can be used to realize wired or wireless connection. The human-machine interaction terminal can be a touch screen display for displaying various status information and operation interfaces of the system. For example, a TFT-LCD display can be used, which has high resolution and color display function, so that users can intuitively understand the working status of the system. In addition, functions such as voice recognition and gesture recognition can be added to the human-machine interaction terminal.

[0075] Both the host computer and the human-computer interaction end can realize dual-path operation control, including manual control process and automatic control process, which can greatly improve the convenience and safety of system operation. The dual-path operation control mode can not only realize local and remote synchronous control, but also switch to the other path when one of the paths fails to ensure the continuous operation of the system. The addition of intelligent functions such as voice recognition and gesture recognition makes user operation simpler and more natural, especially suitable for rapid response in complex environments. These improvements not only improve the availability and reliability of the system, but also greatly improve the user experience, making it more in line with the development trend of modern communication technology.

[0076] According to another aspect of the present application, there is provided a long-wave wide-band portable communication system, comprising: a receiving system, and a long-wave wide-band portable transmitting system as described above; The receiving system is used to receive the signal transmitted by the long-wave wide-band portable transmitting system through the antenna.

[0077] This embodiment forms a complete long-wave wide-band portable communication system. The receiving system is used to receive the radio frequency signal sent by the long-wave wide-band portable transmitting system, and efficiently decode the signal to ensure the quality and integrity of the received signal. Through the matching design of the receiving antenna and the preamplifier, the system can capture weak signals, and the demodulation unit and the data processing unit are set so that the signal can be accurately decoded to ensure the correct transmission of data. The matching design can make the entire communication system more complete and reliable, suitable for application in various complex communication environments, and meet the high standards of modern communication technology.

[0078] Dual-path operation control between the host computer and the human-computer interaction terminal, including manual control process and automatic control process.

[0079] Figure 2 A manual control flow chart of a long-wave wide-band portable communication control software system according to an embodiment of the present application is shown.

[0080] The manual control process includes: S311: Manually turn on the low voltage power supply; S312: Determine whether the power supply low voltage value is in the first preset range. If yes, execute step S313. If not, alarm and prompt to check and correct, and execute step S311. S313: Manually turn on the high voltage power supply; S314: Determine whether the output signal power reaches full power, if yes, execute step S316, if no, execute step S315; S315: Set the high voltage value and manually increase the high voltage output; S316: Sending of the message is completed.

[0081] Figure 3 An automatic control flow chart of a long-wave wide-band portable communication control software system according to an embodiment of the present application is shown.

[0082] The automatic control process includes: S321: One-key startup; S322: Determine whether to perform the operation of turning on the low voltage power supply, turning on the high voltage power supply, and increasing the high voltage value. If not, the message sending ends. If yes, execute step S323; S323: Automatically turn on the low voltage power supply; S324: After the first preset time, the high power supply is automatically turned on and the voltage value is increased to a second preset range; S325: Determine whether the output signal power under the current high voltage value reaches full power, if yes, execute step S327, if no, execute step S326; S326: increasing the high voltage value by a preset voltage increment, and executing step S325; S327: Sending the message is completed.

[0083] In both the manual control process and the automatic control process, the low-voltage power supply needs to be checked. When the low-voltage value meets the conditions, the high-voltage power supply is turned on, and the output signal is judged to see whether it reaches full power. If it does not reach full power, the high-voltage value is adjusted to achieve full power output.

[0084] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other and will not be described in detail.

[0085] It should be noted that the above embodiments illustrate rather than limit the present application, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation to the claims.

[0086] It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to which steps and units are clearly listed, but may include other steps or units inherent to these processes, methods, products or devices that are not clearly listed. The terms "first", "second", etc. are used to distinguish similar phenomena and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so as to describe the embodiments of the invention described herein. The present application can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim that lists several devices, several of these devices can be embodied by the same hardware item.

Claims

1. A long-wave broadband portable signaling system, characterized in that: include: An excitation unit (100), a power amplifier unit (200), a matching unit (300), a debugging unit (400), a measuring unit (500), a control and protection unit (600), and a power supply unit (700); The excitation unit (100) is used to generate a first radio frequency signal; The power amplifier unit (200) is used to obtain the first radio frequency signal output by the excitation unit (100) and generate a power amplification signal; The matching unit (300) is used to perform power combination based on the power amplification signal output by the power amplifier unit (200), and output a power combination signal; The measuring unit (500) is used to obtain the power combination signal output by the matching unit (300), measure the voltage value and the current value, and obtain the real-time voltage value and the current value; The control and protection unit (600) is used to collect signals output by the power amplifier unit (200) and the measurement unit (500) in real time, set the impedance matching value of the debugging unit (400) in response to a signaling requirement, and dynamically adjust the output power of the power amplifier unit (200) to achieve full power output; The power supply unit (700) is used to supply power to the signaling system.

2. The system according to claim 1, characterized in that The excitation unit (100) is a signal generator.

3. The system according to claim 2, characterized in that The power amplifier unit (200) comprises a first power amplifier unit and a second power amplifier unit; The first power amplifier unit comprises a two-stage push-pull amplifier circuit, the first amplifier circuit is a triode, the second amplifier circuit is a field effect transistor, and the two-stage amplifiers are isolated and cascaded through a transformer; The second power amplifier unit includes three power amplifiers, which are independent of each other and can be used individually or in combination.

4. The system according to claim 3, characterized in that The matching unit (300) comprises three power synthesis transformers, the three power synthesis transformers correspond one to one to the three power amplifiers in the second power amplifier unit, the power amplifier outputs are connected to the primary of the power synthesis transformer and are independent of each other, and the secondary of the power synthesis transformer is connected in series.

5. The system according to claim 4, characterized in that The measuring unit (500) comprises a mutual inductor, a measuring board and an isolation transmitter, and is used to convert the power combination signal into a secondary voltage and current signal, and to measure the voltage value and the current value through the measuring board.

6. The system according to any one of claims 1 to 5, characterized in that: The control and protection unit (600) comprises: a collection module, a control module and a human-computer interaction terminal, the collection module is connected to the second power amplifier unit and the measurement board, the control module calculates the real-time output voltage value and current value based on the voltage value and current value of the collection and measurement board, and in response to the signal transmission demand, adjusts the output power of the second power amplifier unit to achieve full-power signal transmission; In response to the signaling demand, adjusting the output power of the second power amplifier unit through the human-computer interaction terminal to achieve full-power signaling includes: status display, parameter setting, and power supply control; The status display includes output voltage value, output current value, output power value, power supply low voltage state, power supply high voltage state, and power amplifier state; The parameter setting includes setting the power supply high voltage value, the power value, and the load value; The power supply control includes controlling the high voltage value of the power supply of the second power amplifier unit, which specifically includes manual control and automatic control.

7. The system according to claim 6, characterized in that The power supply unit (700) comprises a high-power DC power supply module, a low-voltage power supply module and a basic power supply module, wherein the high-power DC power supply module is used to provide real-time variable output power for the second power amplifier unit, the low-voltage power supply module is used to provide low-voltage power supply to the first power amplifier unit and the second power amplifier unit, and the basic power supply module supplies power to the signaling system.

8. A long-wave broadband portable transmitter, characterized in that: The device comprises a power amplifier cabinet, a power control cabinet, a dummy load, and an antenna, wherein the power amplifier unit (200) according to claim 6 is arranged in the power amplifier cabinet, the power supply unit (700) according to claim 6 is arranged in the power control cabinet, and the debugging unit (400) according to claim 6 is arranged in the dummy load; The dummy load comprises a debugging unit (400) and a chassis, and the debugging unit (400) comprises a resistor rack, which adaptively adjusts the impedance value to achieve impedance matching and debugging and maintenance; The antenna is set according to the impedance matching value of the debugging unit (400).

9. A long-wave broadband portable communication control software system, characterized in that: It comprises: a host computer, and a human-computer interaction terminal as claimed in any one of claims 6 to 8; Both the host computer and the human-computer interaction terminal of the control and protection unit can realize dual-path operation control; The dual-path operation control includes a manual control process and an automatic control process.

10. A long-wave broadband portable communication system, characterized in that: include: A receiving system, and a long-wave broadband portable transmitting system as claimed in any one of claims 1 to 7; The receiving system is used for receiving the signal transmitted by the long-wave broadband portable transmitting system through the antenna.

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