A device for monitoring the operating state of a transmitting assembly

Abstract

The application provides a kind of launch assembly operating state monitoring device, it relates to launch assembly operating state monitoring technical field, including voltage measurement circuit, current measurement circuit, power measurement circuit, operational amplifier circuit, analog-digital conversion circuit, digital input circuit, digital output circuit, communication circuit and processor circuit, each circuit has electrical connection between each other.The application can realize the analog quantity collection of power voltage, power amplifier module working current and radio frequency signal power of launch assembly, power supply undervoltage and overvoltage, overtemperature and the state monitoring of input and output radio frequency signal power, emergency stop, development of receiving gate sleeve signal, gate sleeve output and the control of indication signal, and the communication transceiver with outside, more comprehensively realizes the monitoring and reporting of launch assembly operating state and protection and fault diagnosis function.

Description

Technical Field

[0001] This invention relates to the field of launch component operation status monitoring technology, and more specifically, to a launch component operation status monitoring device. Background Technology

[0002] Modern pulse-type air traffic control radars widely employ all-solid-state transmitters. To meet transmission power requirements, these transmitters typically consist of several transmitting modules and utilize a centralized output combined power. Each transmitting module employs multi-stage power amplifiers connected in series to increase power gain, while within the same stage, multiple power amplifiers are connected in parallel and combined to further enhance the total power. Therefore, the transmitting module is the core component of the radar transmitter, and its operational stability and reliability are crucial to the operation of the radar transmitter and even the entire system. Thus, comprehensive and real-time monitoring of its operational status and the protection and diagnosis of faults are of paramount importance.

[0003] Existing transmitter component monitoring devices (such as those disclosed in patents CN205608173U, CN207318705U, and CN213461723U) have relatively simple functions. They are mainly built using logic circuits, lack processor circuits, cannot collect analog signals, and cannot provide communication interfaces, thus failing to accurately monitor and report status information. Therefore, a more comprehensive transmitter component operational status monitoring device needs to be designed to ensure its stable and reliable operation. Summary of the Invention

[0004] The present invention aims to solve the problem that existing monitoring devices cannot accurately monitor and report status information.

[0005] To address the above problems, the present invention provides a device for monitoring the operational status of a launch component, comprising: The voltage measurement circuit is used to measure the voltage of the power supply to the transmitting component and output the corresponding voltage signal. The current measurement circuit is used to measure the operating current of the power amplifier module inside the transmitting component and output the corresponding voltage signal. A power measurement circuit is used to detect the input and output radio frequency signals of the transmitting component and output a corresponding voltage signal. An operational amplifier circuit, whose input terminals are respectively connected to the output terminals of the current measurement circuit and the power measurement circuit, is used to amplify the received voltage signal to obtain an analog voltage signal; An analog-to-digital converter circuit, whose input terminals are respectively connected to the output terminals of the voltage measurement circuit and the operational amplifier circuit, is used to convert the voltage signal output by the voltage measurement circuit and the analog voltage signal output by the operational amplifier circuit into digital signals and output them to the processor circuit. The digital input circuit is used to compare the voltage signal output by the voltage measurement circuit and the analog voltage signal obtained by amplification by the operational amplifier circuit with the corresponding voltage thresholds respectively; receive the differential signals of emergency stop, start-up and door frame; acquire the temperature relay signal; and perform level conversion to obtain a digital signal for output to the processor circuit. The processor circuit has its input terminals connected to the output terminals of the analog-to-digital converter circuit and the digital input circuit, respectively. It is used to process and analyze the received digital signals, send control signals to the digital output circuit based on the analysis results, and send and receive instruction information and monitoring data with the outside world through the communication circuit. A digital output circuit, whose input terminal is connected to the output terminal of the processor circuit, is used to receive the control signal output by the processor circuit, perform level conversion, and drive the output gate signal and indicator light signal. The communication circuit is bidirectionally connected to the processor circuit and is used to receive instruction information and send monitoring data to the outside world.

[0006] The present invention provides a transmitter component operation status monitoring device, which, compared with the prior art, has, but is not limited to, the following beneficial effects: The power supply voltage of the transmitting component, the operating current of the power amplifier module, and the input and output RF signals are monitored in real time through voltage measurement circuit, current measurement circuit, and power measurement circuit. Weak signals are amplified by an operational amplifier circuit and then converted into digital quantities by an analog-to-digital converter circuit. This accurately reflects the key operating parameters of the transmitting component, providing a reliable data foundation for condition assessment. The digital input circuit not only supports comparison of analog voltage signals with preset thresholds but also receives various differential signals such as emergency stop, start-up, and gate activation signals, as well as temperature relay signals, and performs level conversion. This ensures that various switching quantities and protection signals can be acquired by the processor circuit in a timely and accurate manner, enabling rapid judgment and response to abnormal states. By monitoring key parameters in real time and setting threshold comparisons, control signals can be issued promptly when parameters are abnormal. Combined with the access of input signals such as emergency stop, this effectively ensures the safe operation of the transmitting component and the entire system, preventing losses due to escalating faults.

[0007] Furthermore, the voltage measurement circuit converts the power supply voltage of the transmitting component into a voltage signal that is compatible with the input range of the analog-to-digital converter circuit through a resistor voltage divider method.

[0008] Furthermore, the current measurement circuit includes one or more Hall effect current sensors, the number of which corresponds to the number of power amplification modules within the transmitting assembly.

[0009] Furthermore, the power measurement circuit includes a coupler and a detector, which are used to couple, attenuate, and detect the input and output radio frequency signals of the transmitting component, respectively, and output a voltage signal proportional to the power of the radio frequency signal.

[0010] Furthermore, the operational amplifier circuit includes an operational amplifier for amplifying the voltage signals output by the current measurement circuit and the power measurement circuit to a range that matches the voltage input range of the analog-to-digital conversion circuit.

[0011] Furthermore, the analog-to-digital conversion circuit includes an A / D conversion chip for converting the received voltage signal and analog voltage signal into a digital signal that matches the processor circuit.

[0012] Furthermore, the digital input circuit includes a potentiometer used for voltage division to generate a voltage threshold.

[0013] Furthermore, the digital output circuit includes a 3.3V-5V level conversion chip, and the number of its channels can be increased according to the number of door frame signals and indicator light signals.

[0014] Furthermore, the communication circuit includes an RS485 / RS422 communication chip.

[0015] Furthermore, the processor circuitry includes an FPGA chip. Attached Figure Description

[0016] Figure 1 This is a circuit diagram of an embodiment of a transmitter component operation status monitoring device according to the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Voltage measurement circuit; 2. Current measurement circuit; 3. Power measurement circuit; 4. Operational amplifier circuit; 5. Analog-to-digital converter circuit; 6. Digital input circuit; 7. Digital output circuit; 8. Communication circuit; 9. Processor circuit. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the specification, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0023] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] See Figure 1 An embodiment of the present invention provides a transmitter component operation status monitoring device, which includes a voltage measurement circuit 1 for measuring the voltage of the transmitter component power supply and outputting a corresponding voltage signal; Current measurement circuit 2 is used to measure the operating current of the power amplifier module inside the transmitting component and output the corresponding voltage signal; The power measurement circuit 3 is used to detect the input and output radio frequency signals of the transmitting component and output the corresponding voltage signals. Operational amplifier circuit 4, whose input terminals are connected to the output terminals of current measurement circuit 2 and power measurement circuit 3 respectively, is used to amplify the received voltage signal to obtain an analog voltage signal; The analog-to-digital converter circuit 5 has its input terminals connected to the output terminals of the voltage measurement circuit 1 and the operational amplifier circuit 4, respectively. It is used to convert the voltage signal output by the voltage measurement circuit 1 and the analog voltage signal output by the operational amplifier circuit 4 into digital signals and output them to the processor circuit 9. The digital input circuit 6 is used to compare the voltage signal output by the voltage measurement circuit 1 and the analog voltage signal obtained by amplification by the operational amplifier circuit 4 with the corresponding voltage thresholds respectively; receive the differential signals of emergency stop, start-up and door frame; collect the temperature relay signal; and perform level conversion to obtain a digital signal to output to the processor circuit 9. The processor circuit 9 has its input terminals connected to the output terminals of the analog-to-digital converter circuit 5 and the digital input circuit 6, respectively. It is used to process and analyze the received digital signals, send control signals to the digital output circuit 7 based on the analysis results, and send and receive instruction information and monitoring data with the outside world through the communication circuit 8. Digital output circuit 7, whose input terminal is connected to the output terminal of processor circuit 9, is used to receive the control signal output by processor circuit 9, perform level conversion, and drive the output gate signal and indicator light signal. The communication circuit 8 is bidirectionally connected to the processor circuit 9 and is used to receive instruction information and send monitoring data to the outside world.

[0025] In this embodiment, the power supply voltage of the transmitting component, the operating current of the power amplifier module, and the input and output radio frequency signals are monitored in real time by voltage measurement circuit 1, current measurement circuit 2, and power measurement circuit 3, respectively. The weak signals are amplified by operational amplifier circuit 4 and then converted into digital quantities by analog-to-digital converter circuit 5. This accurately reflects the key operating parameters of the transmitting component, providing a reliable data foundation for status assessment. Digital input circuit 6 not only supports comparing analog voltage signals with preset thresholds but also receives various differential signals such as emergency stop, start-up, and door lock signals, as well as temperature relay signals, and performs level conversion to ensure that various switching and protection signals can be received. The processor circuit acquires data promptly and accurately, enabling rapid judgment and response to abnormal states. The processor circuit 9 analyzes and processes the acquired digital signals, and based on the analysis results, drives the door frame signal and indicator light signal through the digital output circuit 7 to achieve local status indication and control. Simultaneously, it communicates with the outside world bidirectionally to send and receive command information and monitoring data through the communication circuit 8, facilitating remote monitoring and system integration and improving operation and maintenance efficiency. By monitoring key parameters in real time and setting threshold comparisons, it can promptly issue control signals when parameters are abnormal. Combined with the access of input signals such as emergency stop, it effectively ensures the safe operation of the transmitting component and the entire system, avoiding losses caused by the expansion of faults.

[0026] Optionally, the voltage measurement circuit 1 converts the power supply voltage of the transmitting component into a voltage signal that matches the input range of the analog-to-digital converter circuit 5 using a resistor divider method.

[0027] In this embodiment, the voltage measurement circuit 1 is composed of a high-precision resistor voltage divider network. For example, for the 48V or 24V power supply commonly used in the transmitting component, two precision resistors, 100kΩ and 10kΩ, are connected in series. The voltage is drawn from the voltage divider point to the analog-to-digital converter circuit 5. The voltage division ratio ensures that the highest input voltage after conversion does not exceed the maximum allowable input voltage of the analog-to-digital converter circuit 5. At the same time, a small capacitor is connected in parallel between the voltage divider point and ground for filtering. The resistor voltage divider method has a simple structure and can accurately attenuate the high voltage to the safe range that the ADC can measure, ensuring the accuracy of power supply voltage monitoring and the safety of the circuit, and preventing high voltage from directly impacting the back-end sampling circuit.

[0028] Optionally, the current measurement circuit 2 includes one or more Hall effect current sensors, the number of which corresponds to the number of power amplification modules within the transmitting assembly.

[0029] In this embodiment, the current measurement circuit 2 uses a Hall effect current sensor chip. If the transmitting component contains four power amplifier modules, the current measurement circuit 2 also has four independent Hall sensors, which are respectively connected around or in series with the power supply line of each power amplifier module. The output voltage of the sensor is proportional to the current flowing through it. The Hall effect sensor realizes non-contact or high isolation current measurement, avoiding the power consumption and safety hazards caused by inserting a sampling resistor in series in the high voltage main circuit. The multi-channel design corresponds one-to-one with the power amplifier module, which can independently monitor the operating current of each module, making it easy to accurately locate which power amplifier module has an abnormal current and improving the precision of fault diagnosis.

[0030] Optionally, the power measurement circuit 3 includes a coupler and a detector for coupling attenuating and detecting the input and output radio frequency signals of the transmitting component, respectively, and outputting a voltage signal proportional to the power of the radio frequency signal.

[0031] In this embodiment, the input radio frequency (RF) signal passes through a microstrip line or transformer-type directional coupler, extracting a very small portion of its energy, which is then sent to a detector for detection, converting the RF energy into DC voltage. Similarly, an identical coupling and detection circuit is set at the output end. The DC voltage signals from the two detector outputs are respectively output to operational amplifier circuit 4. Through the coupler and detector, the high-frequency RF signal, which is difficult to measure directly, is converted into a DC voltage signal that is easy to process, enabling the digital circuit to quantify and monitor the input and output power of the transmitting component. By comparing the input and output power, the gain of the transmitting component can be calculated in real time to determine whether its amplification performance has deteriorated. This is a key indicator for evaluating the core functional status of the transmitting component.

[0032] Optionally, the operational amplifier circuit 4 includes an operational amplifier for amplifying the voltage signals output by the current measurement circuit 2 and the power measurement circuit 3 to a range that adapts to the voltage input range of the analog-to-digital converter circuit 5.

[0033] In this embodiment, the operational amplifier circuit 4 uses an operational amplifier and is built as a non-inverting or inverting proportional amplifier circuit. For the weak signal output by the current sensor and detector, the ratio of the feedback resistor to the input resistor is set to amplify it to the optimal sampling range of the analog-to-digital conversion circuit 5, thereby making full use of the resolution of the ADC. Through signal conditioning and amplification, the signal-to-noise ratio of the weak signal is improved, and the small signal is prevented from being submerged by quantization noise during the analog-to-digital conversion process, thus ensuring the high accuracy of current and power measurement.

[0034] Optionally, the analog-to-digital conversion circuit 5 includes an A / D conversion chip for converting the received voltage signal and analog voltage signal into a digital signal that matches the processor circuit 9.

[0035] In this embodiment, the analog-to-digital conversion circuit 5 uses a multi-channel A / D conversion chip. Under the control of the processor circuit 9, the ADC chip synchronously or cyclically samples multiple analog quantities at a set sampling rate, converts the analog voltage value into a 12-bit or 16-bit binary digital quantity, and transmits it to the processor circuit 9 through SPI or a parallel interface.

[0036] Optionally, the digital input circuit 6 includes a potentiometer for voltage division to generate a voltage threshold.

[0037] In this embodiment, a potentiometer is used to provide a simple, intuitive and low-cost way to set hardware alarm thresholds. Field maintenance personnel can flexibly set the threshold values ​​for overvoltage, overcurrent or power abnormalities by adjusting the potentiometer without modifying the software code, which enhances the field adaptability and ease of use of the device.

[0038] Optionally, the digital output circuit 7 includes a 3.3V-5V level conversion chip, the number of which can be increased according to the number of door frame signals and indicator light signals.

[0039] In this embodiment, the 3.3V-5V level conversion chip ensures logic level matching between different voltage domains, enabling the processor to reliably control external 5V actuators. The scalable channel design meets the diverse needs of different transmitting components for the number of external indication and control interfaces, thus improving the versatility of the device.

[0040] Optionally, the communication circuit 8 includes an RS485 / RS422 communication chip.

[0041] In this embodiment, the RS485 / RS422 industrial bus standard is adopted to realize long-distance, high-reliability data communication between the device and external systems. The differential signal transmission has a strong common-mode rejection capability, which is very suitable for the complex electromagnetic environment at the launch site and ensures the remote accessibility of monitoring information.

[0042] Optionally, the processor circuit 9 includes an FPGA chip.

[0043] In this embodiment, the FPGA has powerful parallel processing capabilities and hardware programmability. Compared with traditional microcontrollers, the FPGA can simultaneously process multiple high-speed data streams from the ADC and a large number of digital input signals, achieving true real-time parallel processing with extremely low processing latency.

[0044] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A device for monitoring the operational status of a launch component, characterized in that, include: Voltage measurement circuit (1) is used to measure the voltage of the power supply of the transmitting component and output the corresponding analog voltage signal; The current measurement circuit (2) is used to measure the operating current of the power amplifier module in the transmitting component and output the corresponding voltage signal. The power measurement circuit (3) is used to detect the input radio frequency signal and the output radio frequency signal of the transmitting component and output the corresponding voltage signal; The operational amplifier circuit (4) has its input terminals connected to the output terminals of the current measurement circuit (2) and the power measurement circuit (3) respectively, and is used to amplify the received voltage signal to obtain an analog voltage signal. The analog-to-digital converter circuit (5) has its input terminals connected to the output terminals of the voltage measurement circuit (1) and the operational amplifier circuit (4) respectively, and is used to convert the voltage signal output by the voltage measurement circuit (1) and the analog voltage signal output by the operational amplifier circuit (4) into digital signals and output them to the processor circuit (9). The digital input circuit (6) is used to compare the voltage signal output by the voltage measurement circuit (1) and the analog voltage signal obtained by amplifying the operational amplifier circuit (4) with the corresponding voltage thresholds respectively. Receive the differential signals of emergency stop, start-up and door frame, collect the temperature relay signal, and perform level conversion to obtain a digital signal output to the processor circuit (9). The processor circuit (9) has its input terminals connected to the output terminals of the analog-to-digital converter circuit (5) and the digital input circuit (6) respectively. It is used to process and analyze the received digital signals, and send control signals to the digital output circuit (7) according to the analysis results, and send and receive instruction information and monitoring data with the outside world through the communication circuit (8). The digital output circuit (7) has its input terminal connected to the output terminal of the processor circuit (9) and is used to receive the control signal output by the processor circuit (9), perform level conversion, and drive the output gate signal and indicator light signal. The communication circuit (8) is bidirectionally connected to the processor circuit (9) and is used to receive instruction information and send monitoring data to the outside world.

2. The launch component operation status monitoring device according to claim 1, characterized in that, The voltage measurement circuit (1) converts the power supply voltage of the transmitting component into a voltage signal that is compatible with the input range of the analog-to-digital converter circuit (5) by using a resistor voltage divider method.

3. The device for monitoring the operating status of a launch component according to claim 1, characterized in that, The current measurement circuit (2) includes one or more Hall effect current sensors, the number of which corresponds to the number of power amplification modules in the transmitting assembly.

4. The device for monitoring the operating status of a launch component according to claim 1, characterized in that, The power measurement circuit (3) includes a coupler and a detector, which are used to couple, attenuate, and detect the input and output radio frequency signals of the transmitting component, respectively, and output a voltage signal proportional to the power of the radio frequency signal.

5. The device for monitoring the operating status of a launch component according to claim 1, characterized in that, The operational amplifier circuit (4) includes an operational amplifier for amplifying the voltage signals output by the current measurement circuit (2) and the power measurement circuit (3) to a range that matches the voltage input range of the analog-to-digital converter circuit (5).

6. The device for monitoring the operating status of a launch component according to claim 1, characterized in that, The analog-to-digital conversion circuit (5) includes an A / D conversion chip for converting the received voltage signal and analog voltage signal into a digital signal that matches the processor circuit (9).

7. The device for monitoring the operating status of a launch component according to claim 1, characterized in that, The digital input circuit (6) includes a potentiometer for voltage division to generate a voltage threshold.

8. The device for monitoring the operating status of a launch component according to claim 1, characterized in that, The digital output circuit (7) includes a 3.3V-5V level conversion chip, and the number of its channels can be increased according to the number of door frame signals and indicator light signals.

9. The device for monitoring the operating status of a launch component according to claim 1, characterized in that, The communication circuit (8) includes an RS485 / RS422 communication chip.

10. The device for monitoring the operating status of a launch component according to claim 1, characterized in that, The processor circuit (9) includes an FPGA chip.

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