CN115371730B - High-power gyrator working state accurate detection system and method - Google Patents
High-power gyrator working state accurate detection system and method Download PDFInfo
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Abstract
The invention discloses a system and a method for accurately detecting the working state of a high-power gyrator, which belong to the technical field of arc light detection and solve the technical problem that the prior art cannot predict the possible sparking situation in advance, and comprise an arc light detection module: the device is used for collecting an optical signal generated when arc light occurs; the back wave detection module: the device is used for collecting standing wave signals generated before arc light occurs; and (3) a main control board: the method is used for processing the acquired standing wave signals and optical signals; and the lock linkage output module is used for: the device is used for sending out an interlocking signal and closing a high-voltage power supply; and the optical fiber synchronization module: when no light signal or standing wave signal is generated, the synchronous signal for conducting the high-voltage power supply is output, so that the technical effect of detecting the sparking condition in advance is realized.
Description
Technical Field
The invention relates to the technical field of arc light detection, in particular to a system and a method for accurately detecting the working state of a high-power gyrator.
Background
The rotary traveling wave tube is a very important high-power millimeter wave device, has the advantages of wide frequency band, high power, high gain and the like, and has wide application prospect in the fields of millimeter wave radars, communication, electronic countermeasure, microwave weapons and the like. High power transmitters typically operate at high voltages and high currents. Under the background noise of high-voltage strong current strong magnetism, the stable working state of the high-power millimeter wave transmitter system is difficult to control and easy to disturb, and the working state of the device is difficult to extract. The high-power transmitter can reliably work by removing the sparking tip through the "aging" process in a high-energy state, the high-current discharge is inevitably generated in the "aging" process, high energy (thousands of joules) is released in an extremely short time, and the problem of how to control the "sparking" process to realize high-efficiency "aging" is another difficulty in stable work of the device.
In the prior art, an automatic test system needs to set a reasonable threshold according to previous experience, judge whether the threshold is exceeded by collecting parameters of a device in real time, consider that the device is abnormal in ignition when the threshold is exceeded, process the abnormal ignition, and cannot pre-judge the possible ignition condition in advance, so that a large potential safety hazard exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a system and a method for accurately detecting the working state of a high-power gyrotron, which solve the technical problem that the prior art cannot prejudge the ignition phenomenon in advance
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
in one aspect, a high-power gyrotron operating condition accurate detecting system includes:
arc light detection module: the device is used for collecting an optical signal generated when arc light occurs;
the back wave detection module: the device is used for collecting standing wave signals generated before arc light occurs;
and (3) a main control board: the method is used for processing the acquired standing wave signals and optical signals;
and the lock linkage output module is used for: the device is used for sending out an interlocking signal and closing a high-voltage power supply;
and the optical fiber synchronization module: when no light signal or standing wave signal is generated, the synchronous signal for switching on the high-voltage power supply is output.
By adopting the scheme, the arc light detection module and the anti-wave detection module respectively correspond to the moment of generating the arc light and the moment of emitting the standing wave before the arc light is generated, when the arc light is generated, namely, the ignition phenomenon occurs, the arc light detection module can detect the generation of the arc light, and the detection data are transmitted to the main control board; the standing wave radiated before the arc light occurs can be detected by the back wave detection module, the ignition event can be prejudged before the ignition phenomenon occurs, and detection data are transmitted to the main control board.
The main control board is connected with a network communication module in a signal way, and the network communication module is connected with a control end in a signal way.
By adopting the scheme, the working state of the gyrator can be monitored through the control end, and the remote control and parameter setting of the system are carried out through the control end, so that the remote control and monitoring of the device are realized.
The arc light detection module comprises a photosensitive sensor, wherein the photosensitive sensor is sequentially connected with a first amplifier, a first comparator and a first comparator which are connected with a main control board through a circuit.
By adopting the scheme, the first amplifier is used for forming the active filter circuit, so that interference can be effectively suppressed, and the detection precision is improved.
The back wave detection module comprises a detection sensor, wherein the detection sensor is connected with a second amplifier, a second comparator and a second logic circuit at one time, and the second logic circuit is connected with the main control board.
The main control board is electrically connected with a power filter and a switching power supply.
By adopting the scheme, the power filter adopts synchronous filtering, error protection caused by the interference of the switch of the modulator can be effectively restrained, meanwhile, the filtering time is shortened, the detection sensitivity and the reaction time are improved, and the shortest time from the identification of microwave ignition to the emission of turn-off of the high-voltage power supply signal is less than 5us.
The high-voltage power supply and the main control board are connected with an optical fiber switch through signals, the optical fiber switch is connected with an upper computer through signals, and the optical fiber switch is used for realizing information circulation among the high-voltage power supply, the main control board and the upper computer.
By adopting the scheme, a local area network can be formed among the high-voltage power supply, the main control board and the upper computer in the system through the optical fiber switch, and information intercommunication is realized.
The control panel is an MCU micro control unit.
On the other hand, the method for accurately detecting the working state of the high-power gyrator comprises the following steps:
s1: starting a detection system, and selecting a power supply to be in a pulse mode or a direct current mode;
s2: the arc light detection module is used for detecting arc light and transmitting a detection result to the main control board;
s3: the method comprises the steps that when arc light detection is carried out, standing wave detection is carried out by an anti-wave detection module, and a detection result is transmitted to a main control board;
s4: the main control board receives the detection results generated in the S2 and the S3, and if the detection results are that no arc light or standing wave is generated, the optical fiber synchronization module continuously outputs a synchronization signal, and the high-voltage power supply works normally;
if arc light or standing wave is generated, the optical fiber synchronization module does not output a synchronization signal, the interlocking output module outputs an interlocking signal, and the high-voltage power supply is turned off to protect the gyrator.
By adopting the scheme, the arc light detection module and the counter wave detection module can be used for monitoring the whole process from the radiation standing wave before the arc light occurs to the generation of the light signal emitted by the arc light, so that the prejudgment of the ignition phenomenon is realized, and the high-voltage power supply is turned off in advance, so that the use safety of the convolution device is ensured.
The specific steps of the step S3 are as follows:
step S31: setting a reference difference setting value x;
step S32: setting the updating speed of the reference value to y times/second, and preferably setting the updating speed to 100 times/second;
step S33: detecting by a photosensitive sensor to obtain a photoelectric sampling value Vout;
step S34: calculating the dynamic reference value ref=vout+x
Step S35: and obtaining a detection result, judging that arc light is generated if the current Vout value is larger than the dynamic reference value REF obtained by the previous calculation, and judging that no arc light is generated if the current Vout value is smaller than or equal to the dynamic reference value REF obtained by the previous calculation.
By adopting the scheme, the dynamic adjustment of the protection threshold can be realized, the protection threshold can be automatically adjusted by the equipment when the background light intensity is slowly changed under different microwave powers and different filament currents, the equipment can work in a highly sensitive and sensitive detection state, error protection is not easy to generate, the operation of frequently and manually adjusting the reference threshold is avoided, and the use is more convenient.
Drawings
Fig. 1 is a schematic diagram of a system structure according to the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
Embodiment one: as shown in fig. 1, in this embodiment, a detection system capable of detecting arc light is provided, and a specific usage scenario is detection of a sparking state of a high-power gyrator, which includes:
arc light detection module: the device is used for collecting an optical signal generated when arc light occurs;
the back wave detection module: the device is used for collecting standing wave signals generated before arc light occurs;
and (3) a main control board: the method is used for processing the acquired standing wave signals and optical signals;
and the lock linkage output module is used for: the device is used for sending out an interlocking signal and closing a high-voltage power supply;
and the optical fiber synchronization module: when no light signal or standing wave signal is generated, the synchronous signal for switching on the high-voltage power supply is output.
The arc light detection module is used for detecting an optical signal of arc light generated in the gyratory device, converting the optical signal into an electric signal, and transmitting the electric signal to the main control board to judge that the arc light is generated, wherein the arc light detection module is mainly used for emergently powering off the generated arc light so as to form protection of the gyratory device, and the specific structure of the module will be described later; the standing wave radiated before the arc light is generated can be detected by the anti-wave detection module, the situation can be prejudged before the arc light is generated, the detection result is timely sent to the main control board, and the high-voltage power supply is turned off to protect the gyrotron. The use safety of the gyrator can be increased by the double detection safety before and during the arc light.
As described above, when an arc light signal or standing wave is detected, the high-voltage power supply is turned off, specifically by the above-mentioned interlocking output module, when an optical signal or standing wave is generated, the interlocking output module outputs an electrical signal of 5v to the high-voltage power supply, and at this time, the high-voltage power supply is turned off, and it should be noted that the implementation of gate breaking by the interlocking output module is a common means for those skilled in the art, so the circuit will not be described in detail here. Meanwhile, the network communication module reads the abnormal working state of the system as follows: and (5) a sparking state. When the system is in a sparking state, the optical fiber synchronization module does not send an output synchronization signal.
When the system is in a normal working state, the optical fiber synchronization module sends an output synchronization signal synchronized with the input synchronization signal to the high-voltage power supply, and the interlocking output module does not output an electric signal, so that the high-voltage power supply works normally.
In order to realize remote control and monitoring of the system, a network communication module is connected with a main control board signal, and a control end is connected with the network communication module signal. A user can monitor each detection parameter and the running state of the equipment of the system through a control end, wherein the control end is a computer in the embodiment.
The specific structures of the arc light detection module and the back wave detection module are as follows:
the arc light detection module comprises a photosensitive sensor, wherein the photosensitive sensor is sequentially connected with a first amplifier, a first comparator and a first comparator which are connected with a main control board through a circuit.
The back wave detection module comprises a detection sensor, wherein the detection sensor is sequentially connected with a second amplifier and a second comparator which are connected with the main control board through a circuit.
Wherein the power module of the main control board is:
the main control board is electrically connected with a power filter and a switching power supply. In the above scheme, the 22V voltage is filtered by the power filter, that is, the switching power supply is 24V dc voltage, and provides working power for the main control board and each working module, where the power switch is a pulse width modulator, and mainly comprises a sampler, a comparator, an oscillator, a pulse width modulator, and a reference voltage circuit, and is used for adjusting the switching time ratio of the high-frequency switching element, so as to achieve the effect of stabilizing the output voltage.
Further, the high-voltage power supply and the main control board are connected with an optical fiber switch in a signal mode, the optical fiber switch is connected with an upper computer in a signal mode, and the optical fiber switch is used for achieving information circulation among the high-voltage power supply, the main control board and the upper computer. The optical fiber exchanger can realize the technical effects of remote control and monitoring.
Embodiment two:
in this embodiment, using the detection system in the first embodiment, a method capable of detecting arc light of a gyratory device is provided, which specifically includes:
a method for accurately detecting the working state of a high-power gyrator comprises the following steps:
s1: starting a detection system, and selecting a power supply to be in a pulse mode or a direct current mode;
s2: the arc light detection module is used for detecting arc light and transmitting a detection result to the main control board;
s3: the method comprises the steps that when arc light detection is carried out, standing wave detection is carried out by an anti-wave detection module, and a detection result is transmitted to a main control board;
s4: the main control board receives the detection results generated in the S2 and the S3, and if the detection results are that no arc light or standing wave is generated, the optical fiber synchronization module continuously outputs a synchronization signal, and the high-voltage power supply works normally;
if arc light or standing wave is generated, the optical fiber synchronization module does not output a synchronization signal, the interlocking output module outputs an interlocking signal, and the high-voltage power supply is turned off to protect the gyrator.
In the scheme, detection data can be transmitted to the main control board through detection of arc light signals and standing waves, and the main control board controls the optical fiber synchronization module and the interlocking output module to conduct access or short circuit treatment on the high-voltage power supply. By the method, the arc light can be monitored in real time, and the high-voltage power supply is turned off in time before and at the moment of generating the arc light, so that the protection of the gyrotron is realized.
The embodiment provides a scheme capable of automatically adjusting a protection threshold value under the condition of background strong light change aiming at different microwave powers and different filament currents, which specifically comprises the following steps:
the specific steps of the step S3 are as follows:
step S31: setting a reference difference setting value x;
step S32: setting the updating speed of the reference value as y times/second;
step S33: detecting by a photosensitive sensor to obtain a photoelectric sampling value Vout;
step S34: calculating a dynamic reference value ref=vout+x;
step S35: and obtaining a detection result, judging that arc light is generated if the current Vout value is larger than the dynamic reference value REF obtained by the previous calculation, and judging that no arc light is generated if the current Vout value is smaller than or equal to the dynamic reference value REF obtained by the previous calculation.
In this embodiment, for convenience of understanding, the reference value update speed is set to 100 times/second, that is, the reference value is updated 100 times in one second, and the formula ref=vout+x is calculated in real time, if the monitored Vout value is greater than the REF value at the previous time in a certain time, this indicates that the light signal at the time has an increasing trend, and under this trend, it is determined that there is arc light, at this time, the main control board obtains the detection result of the arc light detection module, and controls the optical fiber synchronization module not to send the output synchronization module any more, and the interlock output module sends a 5v electrical signal through the circuit, so as to control the high voltage power supply to be turned off, and protect the convolution device. In the scheme, the photoelectric sampling value Vout obtained through monitoring is compared with the dynamic reference value REF updated in real time, so that accurate monitoring of arc light can be realized, the value of the dynamic reference value REF is updated in real time through a formula REF=Vout+x, the change of background strong light can be adapted, a dynamic comparison value is provided for whether arc light is generated or not, wherein the reference difference setting value x is set by a user in advance according to background light intensity before the system is used, and through the scheme, the anti-interference performance of the system can be enhanced, and the accuracy of numerical monitoring is improved.
Claims (8)
1. The utility model provides a high-power gyration device operating condition accurate detecting system which characterized in that includes:
arc light detection module: the device is used for collecting an optical signal generated when arc light occurs;
the back wave detection module: the device is used for collecting standing wave signals generated before arc light occurs;
and (3) a main control board: the method is used for processing the acquired standing wave signals and optical signals;
and the lock linkage output module is used for: when the optical signal or the standing wave signal is monitored, an interlocking signal is sent out and a high-voltage power supply is turned off;
and the optical fiber synchronization module: when no light signal or standing wave signal is generated, a synchronous signal for conducting a high-voltage power supply is output;
the arc light detection module comprises a photosensitive sensor, wherein the photosensitive sensor is sequentially connected with a first amplifier and a first comparator, and the first comparator is connected with the main control board through a circuit;
the back wave detection module comprises a detection sensor, wherein the detection sensor is connected with a second amplifier and a second comparator at one time, and the second comparator is connected with the main control board through a circuit.
2. The system for precisely detecting the working state of the high-power gyrator according to claim 1, wherein the main control board is in signal connection with a network communication module, and the network communication module is in signal connection with a control end.
3. The system for precisely detecting the working state of the high-power gyrator according to claim 1, wherein the main control board is electrically connected with a power filter and a switching power supply.
4. The high-power gyrator working state accurate detection system according to claim 1, wherein the high-voltage power supply and the main control board are connected with an optical fiber switch in a signal mode, the optical fiber switch is connected with an upper computer in a signal mode, and the optical fiber switch is used for achieving information circulation among the high-voltage power supply, the main control board and the upper computer.
5. The high-power gyrator working state accurate detection system according to claim 1, wherein the main control board is an MCU micro control unit.
6. A method for applying the high-power gyrator operating state accurate detection system according to any one of claims 1 to 5, comprising the following steps:
s1: starting a detection system, and selecting a power supply to be in a pulse mode or a direct current mode;
s2: the arc light detection module is used for detecting arc light and transmitting a detection result to the main control board;
s3: the method comprises the steps that when arc light detection is carried out, standing wave detection is carried out by an anti-wave detection module, and a detection result is transmitted to a main control board;
s4: the main control board receives the detection results generated in the S2 and the S3, and if the detection results are that no arc light or standing wave is generated, the optical fiber synchronization module continuously outputs a synchronization signal, and the high-voltage power supply works normally;
if arc light or standing wave is generated, the optical fiber synchronization module does not output a synchronization signal, the interlocking output module outputs an interlocking signal, and the high-voltage power supply is turned off to protect the gyrator.
7. The method for precisely detecting the working state of the high-power gyrotron according to claim 6, wherein the specific steps of the step S3 are as follows:
step S31: setting a reference difference setting value x;
step S32: setting the updating speed of the reference value as y times/second;
step S33: detecting by a photosensitive sensor to obtain a photoelectric sampling value Vout;
step S34: calculating a dynamic reference value ref=vout+x;
step S35: and obtaining a detection result, judging that arc light is generated if the current Vout value is larger than the dynamic reference value REF obtained by the previous calculation, and judging that no arc light is generated if the current Vout value is smaller than or equal to the dynamic reference value REF obtained by the previous calculation.
8. The method for precisely detecting the operating state of the high-power gyrator according to claim 7, wherein the update speed is 100 times/second.
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