Portable radar transmitter comprehensive detection device

Abstract

The utility model provides a portable radar transmitter comprehensive detection device. The detection device is connected with a transmitter. The main control chip is connected with a transmitter state control key, and outputs a transmitter state control signal when detecting that the key is pressed down; the level conversion circuit converts a state indication signal and a fault coding signal output by the transmitter into levels and outputs the levels to the main control chip; the A / D sampling circuit converts the working parameters of the transmitter and the transmitter power level value output by the detection amplification circuit into digital signals and outputs the digital signals to the main control chip; the main control chip is connected with a timing pulse control key, and when it is detected that the control key is pressed down, timing pulse signals are output through the timing pulse signal circuit. According to the invention, the structure is miniaturized and light; state setting, fault detection, timing pulse signal generation, transmitter output peak power test and transmitter working state and product performance detection can be carried out on the transmitter only by providing an external radio frequency excitation signal.

Description

Technical Field

[0001] This application relates to the technical field of radar equipment detection, and particularly to a portable comprehensive detection device for radar transmitters. Background Art

[0002] As the core component of a radar system, the performance stability and reliability of a radar transmitter are crucial. However, traditional testing methods and existing testing equipment have significant limitations in ensuring the normal operation of the transmitter. In particular, transmitter testing often relies on a series of independent and bulky external instruments, including but not limited to pulse signal sources, microwave signal sources, power meters, etc. These devices are not only large in size and inconvenient to carry, but also costly to purchase, increasing the difficulty and cost of maintenance and detection work. In addition, during the testing process, manual coordination of the operation of multiple devices is required, the process is cumbersome, the efficiency is low, and it is not conducive to on-site rapid diagnosis and fault troubleshooting. Content of the Utility Model

[0003] The utility model provides a portable comprehensive detection device for radar transmitters, which solves the problems of insufficient portability, low testing efficiency, and high cost of testing equipment in the related art.

[0004] To achieve the above object, this application adopts the following technical solutions:

[0005] Provide a portable comprehensive detection device for radar transmitters, and the detection device is connected to the transmitter through a signal connector;

[0006] The detection device includes: a power supply circuit, a main control chip, a local status display circuit, a level conversion circuit, an A / D sampling circuit, a detection and amplification circuit, and a timing pulse signal circuit;

[0007] The power supply circuit provides a power input for the detection device; the input end of the local status display circuit is electrically connected to the output end of the main control chip, and the local status display circuit is used to receive and display the signal processed by the main control chip;

[0008] The main control chip is connected with a transmitter status control button. When it is detected that the transmitter power-on button is pressed, a transmitter status control signal is output through the level conversion circuit;

[0009] The level conversion circuit is electrically connected to the main control chip; the level conversion circuit is used to convert the status indication signal and fault coding signal output by the transmitter into a level suitable for processing by the main control chip and output it to the main control chip, and after being processed by the main control chip, it is displayed on the local status display circuit;

[0010] The output end of the A / D sampling circuit is electrically connected to the input end of the main control chip. The output end of the detection and amplification circuit is electrically connected to the input end of the A / D sampling circuit. The A / D sampling circuit is used to convert the operating parameters of the transmitter and the transmitter power level value output by the detection and amplification circuit into digital signals and output them to the main control chip, which are displayed on the local status display circuit after being processed by the main control chip;

[0011] The main control chip is connected with a timing pulse control button. When it is detected that the timing pulse control button is pressed, a timing pulse signal is output to the transmitter timing pulse interface through the timing pulse signal circuit.

[0012] Preferably, the level conversion circuit includes an interface conversion chip and an optocoupler;

[0013] The interface conversion chip controls the conversion between the status indication signal and the fault coding signal level;

[0014] The optocoupler is arranged at the control signal input end to control the normal output and the output high impedance state of the optocoupler.

[0015] Preferably, the A / D sampling circuit includes 8 A / D sampling channels;

[0016] Among them, 6 of the A / D sampling channels are respectively connected with the collector sampling voltage, the helix current sampling voltage, the filament sampling voltage, 160V unregulated, +24V unregulated and 160V current sampling voltage; 6 of the A / D sampling channels are electrically connected to the A / D sampling chip through a resistor compensation circuit;

[0017] Among them, 2 of the A / D sampling channels are respectively connected with the cathode sampling voltage and -24V unregulated, and 2 of the A / D sampling channels are electrically connected to the A / D sampling chip through a resistor compensation circuit and an operational amplifier;

[0018] The A / D sampling chip is electrically connected to realize digital signal conversion.

[0019] Preferably, the timing pulse signal circuit includes a key selection circuit, an output switch and indication circuit, and a drive and amplification circuit;

[0020] The key selection circuit includes a 3-bit DIP switch. The 3-bit DIP switch is connected to the main control chip, and the period and duty ratio of the timing pulse signal are controlled by the counter in the main control chip in cooperation with the preset counter overflow amount.

[0021] Preferably, the local status display circuit includes an LED display circuit. The LED display circuit includes a preheating indication, a high voltage on indication, a high voltage off indication, a protection indication, a load indication, an antenna indication and an air cooling indication;

[0022] The local status display circuit further includes an LED digital tube. A 6-digit digital tube is configured to display 8 parameters and the peak power value of the transmitter, and a 2-digit digital tube is used for transmitter fault indication;

[0023] Preferably, the detection device further includes a main control chip supporting circuit; the main control chip supporting circuit includes a power-on reset circuit, a JTAG download circuit, a 50 MHz active crystal oscillator, and chip power supply filter capacitors.

[0024] Preferably, the power supply circuit is connected to the unregulated +24V power supply output by the transmitter. The power supply circuit is connected with a DC-DC converter U1 to convert the unregulated +24V power supply into a +5V power supply;

[0025] The +5V power supply is connected to a DC-DC converter U2 through a voltage regulator diode V1 to convert the +5V power supply into a +3.3V power supply;

[0026] The +3.3V power supply is connected to a power supply inversion chip U5 to convert the +3.3V power supply into a -3.3V power supply;

[0027] The +5V power supply is connected to a level conversion circuit, the -3.3V power supply is connected to an operational amplifier in the A / D sampling circuit, and the +3.3V power supply is respectively connected to the main control chip, the detection and amplification circuit, the timing pulse signal circuit, and the local status display circuit.

[0028] Preferably, the power supply circuit, the main control chip, the main control chip supporting circuit, the local status display circuit, the level conversion circuit, the A / D sampling circuit, the detection and amplification circuit, and the timing pulse signal circuit are integrated on the same PCB board.

[0029] Advantageous effects:

[0030] When testing the transmitter, the present application only needs to provide an external radio frequency excitation signal to perform state setting, fault detection, generate timing pulse signals, and test the peak power output of the transmitter on the transmitter, and complete the detection of the working state and product performance of the transmitter. The present application meets the characteristics of miniaturization and light weight in structure, and can quickly, safely, and portably complete the detection of the working state and product performance of the transmitter. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of a portable radar transmitter comprehensive detection device provided by an embodiment of the present application;

[0032] Figure 2 It is a power supply circuit diagram provided by an embodiment of the present application;

[0033] Figure 3A main control chip and its supporting circuit diagram provided by an embodiment of the present application;

[0034] Figure 4 A level conversion circuit diagram provided by an embodiment of the present application;

[0035] Figure 5 An A / D sampling circuit and a resistor compensation circuit diagram provided by an embodiment of the present application;

[0036] Figure 6 A detection and amplification circuit diagram provided by an embodiment of the present application;

[0037] Figure 7 A timing pulse signal circuit diagram provided by an embodiment of the present application;

[0038] Figure 8 A local status display circuit diagram provided by an embodiment of the present application;

[0039] Figure 9 A program structure diagram provided by an embodiment of the present application. Detailed implementation manners

[0040] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined purpose, the technical solutions in the embodiments of the present application are clearly described. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0041] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0042] In the present application, the description of the method flow in the specification and the steps in the flowchart in the drawings of the present invention do not necessarily have to be strictly executed according to the step numbers. The method steps can be changed in the execution order. Moreover, certain steps can be omitted, multiple steps can be combined into one step for execution, and / or one step can be decomposed into multiple steps for execution.

[0043] The following will be a detailed description of the portable radar transmitter comprehensive detection device provided by the embodiments of the application in combination with the accompanying drawings and preferred embodiments as follows.

[0044] First, the application scenario of the portable radar transmitter comprehensive detection device according to the embodiments of the present application will be described.

[0045] The radar transmitter is an important component in the radar system. Due to its high working voltage and complex environment, it is prone to failures during use. Currently, when testing a radar transmitter, not only does the test device need to control and display the working state of the transmitter, but also a pulse signal source is required to provide a timing pulse signal, a microwave signal source is required to provide a radio frequency excitation signal, and a power meter is required to measure the output power value of the transmitter. Existing transmitter test equipment can only control and display its working state, unable to generate and measure the output signal of the transmitter. It requires an external control signal, an external timing pulse signal, a radio frequency excitation signal, and an external peak power meter for testing. The number of devices is large, inconvenient to carry, and the measurement process is complex.

[0046] According to equipment maintenance experience, the general approach is as follows: use the fire control system to control the working state of the transmitter; use the radar console to set relevant commands to generate a timing pulse signal, and use a frequency synthesizer to generate a radio frequency excitation signal; connect an external peak power meter to measure the output power of the transmitter to determine whether the transmitter is working properly. These instruments and meters are not only large in size and inconvenient to carry, but also expensive.

[0047] Therefore, for the scenario of quickly, safely, and portably testing the performance of a transmitter without external supporting instruments, the present application provides a portable radar transmitter comprehensive detection device to replace these instruments and reduce the equipment required for transmitter testing. The portable radar transmitter comprehensive detection device of the present application can generate its own transmitter control commands and display the current working state of the transmitter; it can also independently generate the timing pulse signal required when the transmitter is working; in terms of power measurement, this device converts the power signal output by the transmitter into a voltage value through a microwave detector, and converts the measured voltage value into a power value through a software look-up table method, so as to achieve the measurement of the output indicators of the transmitter without external supporting instruments and meters. The present application only requires a miniaturized device to complete the transmitter state control, fault display, provide a timing pulse signal, and measure the output peak power, and can quickly, safely, and portably complete the test of the transmitter working state.

[0048] Please refer to Figure 1 As shown in Figure 1 the embodiments of the present application provide a portable radar transmitter comprehensive detection device, which includes: a signal connector and a power supply circuit 1, a main control chip and a supporting circuit 2, an A / D sampling circuit 3, a detection and amplification circuit 4, a timing pulse signal circuit 5, a level conversion circuit 6, and a local status display circuit 7.

[0049] The detection device is connected to the transmitter through a signal connector; the power supply circuit provides power input for the detection device; the input end of the local status display circuit 7 is electrically connected to the output end of the main control chip, and the local status display circuit 7 is used to receive and display the signal processed by the main control chip;

[0050] The main control chip is connected with a transmitter status control button. When it is detected that the transmitter power-on button is pressed, a transmitter status control signal is output through the level conversion circuit 6;

[0051] The level conversion circuit is electrically connected to the main control chip; the level conversion circuit is used to convert the status indication signal and fault coding signal output by the transmitter into a level suitable for the main control chip to process and output to the main control chip,

[0052] and is displayed on the local status display circuit 7 after being processed by the main control chip;

[0053] The output end of the A / D sampling circuit 3 is electrically connected to the input end of the main control chip, the output end of the detection and amplification circuit 4 is electrically connected to the input end of the A / D sampling circuit 3. The A / D sampling circuit 3 is used to convert the operating parameters of the transmitter and the transmitter power level value output by the detection and amplification circuit 4 into digital signals and output them to the main control chip, and is displayed on the local status display circuit 7 after being processed by the main control chip;

[0054] The main control chip is connected with a timing pulse control button. When it is detected that the timing pulse control button is pressed, a timing pulse signal is output through the timing pulse signal circuit 5 to the transmitter timing pulse interface.

[0055] See Figure 2 , as shown in the figure, the power supply circuit. The +24V unregulated power supply output by the transmitter generates a +5V power supply through a DC-DC converter, the +5V power supply generates a +3.3V power supply through a DC-DC converter, and the +3.3V power supply generates a -3.3V power supply through a power supply inversion chip. To ensure the stability of the +5V power supply, a voltage stabilizing diode is added to clamp the +5V voltage. Among them, the +5V power supply is used for the level conversion circuit, the -3.3V power supply is used for the operational amplifier in the A / D sampling circuit, and the main control chip and other modules are powered by +3.3V.

[0056] See Figure 3 , as shown in the figure, the main control chip and its supporting circuit 2. The main control chip selects a CPLD chip, and the supporting circuits include a power-on reset circuit R12 and C6; a JETAG download circuit XT1; a 50MHz active crystal oscillator G1; chip power supply filter capacitors C8~C15.

[0057] The power-on reset circuit includes resistor R12 and capacitor C6. One end of resistor R12 is connected to power supply VCC, and the other end is connected to one end of capacitor C6. The other end of capacitor C6 is grounded, and the reset signal is connected to the reset pin of the main control chip. The XT1 interface is directly connected to the JTAG pin of the CPLD. The output of G1 is directly connected to the clock input pin of the CPLD. One end of each of capacitors C8 - C15 is connected to different power pins (such as +5V, +3.3V), and the other end is grounded.

[0058] In the specific implementation process, the main control chip detects the transmitter status control button and outputs a transmitter status control signal through the level conversion circuit 6; the status indication signal and the decoded fault indication signal output by the transmitter are displayed in the local status display circuit 7 through the level conversion circuit 6; eight working parameters of the transmitter are displayed in the local status display circuit 7 through the A / D sampling circuit 3; the transmitter power level value output by the detection and amplification circuit 4 is displayed in the local status display circuit 7 through the A / D sampling circuit 3; the main control chip also detects the timing pulse control button and outputs a timing pulse signal to the transmitter timing pulse interface through the timing pulse signal circuit 5.

[0059] See Figure 4 , the level conversion circuit 6 is as shown in the figure. The level conversion circuit includes an interface conversion chip and an optocoupler; the interface conversion chip controls the conversion between the status indication signal and the fault coding signal levels; the optocoupler is arranged at the control signal input end to control the normal output and output high impedance state of the optocoupler.

[0060] Since the transmitter interface circuit is a +5V level standard and the maximum input of the main control chip interface is +3.3V, an interface level conversion circuit 6 needs to be added between the transmitter and the main control chip. Selecting the SM164245 chip can achieve the conversion between the transmitter fault coding and the transmitter status control levels. At the same time, in order to isolate the control signals from each other, an optocoupler HCPL-2231 is added at the control signal input end. This chip has an output signal control and can control the normal output and output high impedance state of the optocoupler by setting the level value of pin 6 of the chip. Using the function of the output high impedance state, the remote control detection function of the transmitter can be realized. Since the transmitter is connected to the fire control system and receives the control instructions of the fire control system during normal operation, the test device cannot be connected to the transmitter control link at this time, otherwise it will cause command conflicts. Setting the optocoupler chip pin 6 to a high level makes the transmitter control instruction output by the test device in a high impedance state, so that it will not affect the instructions of the fire control system. At this time, various working states, working parameters and test output power values of the transmitter can be monitored online through this device, realizing the remote control monitoring of the transmitter.

[0061] That is to say, the transmitter control signal is output to the control link of the transmitter through an optocoupler. When the output end of the optocoupler is set to a high-impedance state, the transmitter control instruction of this device will not affect the control instruction of the fire control system. At this time, the remote control monitoring and power measurement of the transmitter status can be realized by using other functions of this device.

[0062] See Figure 5 , the A / D sampling circuit 3 and the resistance compensation circuit are as shown in the figure. When the transmitter works, it outputs the voltage and current parameters of its 8 working points. These parameters are limited within the acceptable range of the A / D sampling chip through a resistance compensation network and can be adjusted through a potentiometer. The A / D sampling chip can select the A / DS1015 type converter. Each converter communicates with the main control chip through the I2C data protocol. Different addresses can be set for the chip by adjusting the position (VDD\GND\SCL) connected to the A / DDR of pin 1 of the chip. Each converter can connect up to 4 A / D sampling channels at most. This device is provided with 9 A / D sampling channels and 3 A / D sampling chips are configured. Since the A / D sampling chip cannot collect negative voltages, the LM358 operational amplifier is used to convert the cathode voltage signal and -24V power supply signal sent by the transmitter into positive voltages before performing A / D conversion.

[0063] Specifically, the A / D sampling circuit includes 8 A / D sampling channels; among them, 6 A / D sampling channels are respectively connected with the collector sampling voltage, helix current sampling voltage, filament sampling voltage, 160V unregulated, +24V unregulated and 160V current sampling voltage; 6 A / D sampling channels are electrically connected to the A / D sampling chip through a resistance compensation circuit; among them, 2 A / D sampling channels are respectively connected with the cathode sampling voltage and -24V unregulated, and 2 A / D sampling channels are electrically connected to the A / D sampling chip through a resistance compensation circuit and an operational amplifier; the A / D sampling chip is electrically connected to realize digital signal conversion.

[0064] See Figure 6, The detection and amplification circuit 4 is as shown in the figure. The peak power output by the transmitter is converted into a level value through a microwave detector, and this level value is input through the SMA connector on the printed circuit board. Since this level value cannot directly drive the A / D chip, it is appropriately amplified through the instrumentation amplifier A / D620 chip, and then the load driving ability is further enhanced by a follower composed of an operational amplifier, and then this sampled value is sent to the sampling pin of the A / D sampling chip. There is zero drift in the A / D620 chip, and an operational amplifier LM358 is used to set up a balancing device for zero adjustment of the amplifier. The peak power is converted into a level value using a microwave detector and collected through the A / D sampling circuit 3. A power value and a level value reference table are preset in the control program, and through the method of software look-up table, the level value data after A / D conversion is converted into power value data to achieve the measurement of the peak power output of the transmitter.

[0065] See Figure 7 , The timing pulse signal circuit 5 is as shown in the figure. The timing pulse signal circuit 5 includes a key selection circuit, an output switch and indication circuit, and a driving and amplifying circuit. The main control chip detects the key values of the 3-bit DIP switch and controls the period and duty cycle of the timing pulse signal by setting different overflow amounts in the counting program. The period and duty cycle of the timing pulse signal are controlled by the counter in the main control chip in cooperation with the preset counter overflow amount to autonomously generate the timing pulse signal required when the transmitter is working. The timing pulse signal output by the main control chip is enhanced in driving ability through the MOS tube amplifier TC4420 and then output through the SMA connector on the printed circuit board, and is connected to the timing pulse input interface of the transmitter through a signal line. The main control chip detects the switch key of the timing pulse signal, controls the signal output and stop, and indicates the current working state through a diode indicator.

[0066] See Figure 8 , The local status display circuit 7 is as shown in the figure. The working status display of the transmitter includes: preheating indication, high voltage on indication, high voltage off indication, protection indication, load indication, antenna indication, air cooling indication, and these status indications are indicated by the LED lights on the PCB board. There are also two common anode LED digital tubes installed on the PCB, whose digit selection signals are controlled by the triode S8550, and the segment selection signals are directly generated by the main control chip. Six-digit digital tubes are configured for displaying 8 parameters and the peak power value of the transmitter, and the data consists of a number plus a data value; two-digit digital tubes are used for the fault indication of the transmitter; there are 11 kinds of faults in total for the transmitter, and the name of each fault is silk-screened on the PCB board, and the user can identify which fault of the transmitter the current digital tube display value corresponds to by comparison.

[0067] The working process of the portable radar transmitter comprehensive detection device of the present application is as follows:

[0068] The portable radar transmitter integrated detection device is connected to the transmitter through a signal connector and uses the +24V power supply provided by the transmitter. After being converted by the power supply circuit, +5V and ±3.3V DC voltages are generated for other modules to use. After the main control chip is powered on, it controls the power on / off key in the transmitter status control keys to determine whether to turn on the transmitter. When it detects that the transmitter power on key is pressed, it sends a power on command to the transmitter through the level conversion circuit 6. After the transmitter is powered on, it outputs the current status indication signal and fault coding signal of the transmitter to this device. These signals are input into the main control chip through the level conversion circuit 6 and are displayed in the local status display circuit 7 after being processed. After the transmitter is powered on, it will also output the voltage / current values of 8 key working parameters, which are converted into digital signals through the A / D sampling circuit 3, and are displayed in the local status display circuit 7 after being processed by the main control chip. The peak power output when the transmitter is working is converted into a level value through the detection and amplification circuit 4, converted into a digital signal by the A / D sampling circuit 3, and is displayed in the local status display circuit 7 after being processed by the main control chip.

[0069] See Figure 9 , the program structure of this application is shown in the figure: The control program of this test device is programmed using the Verilog hardware description language, which is convenient for later software debugging through modular design. The program includes the following modules: I2C communication module, data processing module, data display module, status control module, status display module, timing pulse module, fault handling and display module, clock frequency division module.

[0070] The working processes of each module are as follows:

[0071] The I2C communication module collects the working parameters of the transmitter and the sampling values of the power values. The sampled data is smoothed and filtered by the data processing module and then converted into a displayable data structure, which is displayed by the data display module. The data processing module is also responsible for controlling the A / D sampling chip. Corresponding to different sampling data, the prepared A / D chip control code is sent to the internal register of the chip to control the A / D chip to be in the correct working mode.

[0072] The status control module samples the transmitter status control keys, debounces the keys and then converts them into transmitter status instructions, which are sent to the transmitter interface.

[0073] The status display module receives the status indication signal output by the transmitter, holds each bit of the indication signal for 3 beats to keep it stable, and then controls the LEDs on the PCB board for display.

[0074] The timing pulse module detects the external timing pulse control keys. After debouncing, the overflow values of the pulse width counter and duty cycle counter of the timing pulse signal are determined by the combined values of the keys, and the transmitter timing pulse signal is generated.

[0075] After decoding the 4-bit fault code input by the transmitter, the fault handling module converts it into a 2-digit digital tube display value.

[0076] The clock frequency division module divides the external 50 MHz crystal oscillator clock into a 5 MHz clock for use by other modules in the program.

[0077] In the specific implementation process, all components of this application can be integrated on a circuit board to ensure its miniaturized and portable characteristics. All components are integrated on a PCB board using miniaturized packaging, and the outer shell is made of transparent acrylic board with an external dimension of 130×95×20 mm.

[0078] Compared with the related technologies known to the inventors, when testing the transmitter, this application only needs to provide an external radio frequency excitation signal to perform status setting, fault detection, generation of timing pulse signals, and testing of the transmitter output peak power on the transmitter, and complete the detection of the transmitter working status and product performance. When designing the structure of this application, full consideration is given to the characteristics of miniaturization and portability, meeting the characteristics of miniaturization and lightweight. Therefore, by using this application, the test of the transmitter working status can be completed quickly, safely, and portably.

[0079] It should be noted that in this article, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitations, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0080] The embodiments of this application have been described above in conjunction with the accompanying drawings. However, this application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative and not restrictive. Those of ordinary skill in the art, under the inspiration of this application and without departing from the purpose of this application and the scope protected by the claims, can still make many forms, all of which fall within the protection scope of this application.

Claims

1. A portable radar transmitter integrated detection device, characterized in that: The detection device is connected to the transmitter via a signal connector; The detection device comprises: a power supply circuit, a main control chip, a local state display circuit, a level conversion circuit, an A / D sampling circuit, a detection amplifier circuit and a timing pulse signal circuit; The power supply circuit provides power input for the detection device; the input end of the local status display circuit is electrically connected to the output end of the main control chip, and the local status display circuit is used to receive and display the signal processed by the main control chip; The main control chip is connected to a transmitter state control button, and when it detects that the transmitter power button is pressed, the transmitter state control signal is output through the level conversion circuit; The level conversion circuit is electrically connected to the main control chip; the level conversion circuit is used to convert the status indication signal and the fault coding signal output by the transmitter into a level suitable for processing by the main control chip and output it to the main control chip, and display it in the local status display circuit after being processed by the main control chip; The output end of the A / D sampling circuit is electrically connected to the input end of the main control chip, and the output end of the detection amplifier circuit is electrically connected to the input end of the A / D sampling circuit. The A / D sampling circuit is used to convert the operating parameters of the transmitter and the transmitter power level value output by the detection amplifier circuit into digital signals and output them to the main control chip, and display them in the local status display circuit after being processed by the main control chip; The main control chip is connected to a timing pulse control button. When it is detected that the timing pulse control button is pressed, a timing pulse signal is output to the transmitter timing pulse interface through the timing pulse signal circuit.

2. The portable radar transmitter integrated detection device according to claim 1, characterized in that: The flat conversion circuit includes an interface conversion chip and a photoelectric coupler; The interface conversion chip controls the conversion between the state indication signal and the fault coding signal level; The photoelectric coupler is arranged at the control signal input end to control the normal output and high impedance state of the photoelectric coupler.

3. The portable radar transmitter integrated detection device according to claim 1, characterized in that: The A / D sampling circuit includes 8 A / D sampling channels; Among them, the six A / D sampling channels are respectively connected to the collector sampling voltage, the spiral current sampling voltage, the filament sampling voltage, the 160V unregulated voltage, the +24V unregulated voltage and the 160V current sampling voltage; the six A / D sampling channels are electrically connected to the A / D sampling chip through the resistance compensation circuit; The two A / D sampling channels are respectively connected to a cathode sampling voltage and a -24V unregulated voltage, and the two A / D sampling channels are electrically connected to the A / D sampling chip through a resistor compensation circuit and an operational amplifier; The A / D sampling chip is electrically connected to realize digital signal conversion.

4. The portable radar transmitter integrated detection device according to claim 1, characterized in that: The timing pulse signal circuit includes a key selection circuit, an output switch and indication circuit, and a driving amplifier circuit; The key selection circuit includes a 3-position DIP switch, which is connected to the main control chip. The period and duty cycle of the timing pulse signal are controlled by a counter in the main control chip in conjunction with a preset counter overflow amount.

5. The portable radar transmitter integrated detection device according to any one of claims 1 to 4, characterized in that: The local status display circuit includes an LED display circuit, and the LED display circuit includes a preheating indication, a high voltage on indication, a high voltage off indication, a protection indication, a load indication, an antenna indication, and an air cooling indication; The local status display circuit also includes an LED digital tube, a 6-digit digital tube is configured for displaying 8 parameters and peak power values ​​of the transmitter, and a 2-digit digital tube is configured for indicating transmitter faults.

6. The portable radar transmitter integrated detection device according to any one of claims 1 to 4, characterized in that: The detection device also includes a main control chip supporting circuit; the main control chip supporting circuit includes a power-on reset circuit, a JTAG download circuit, a 50MHz active crystal oscillator and a chip power supply filter capacitor.

7. The portable radar transmitter integrated detection device according to any one of claims 1 to 4, characterized in that: The power supply circuit is connected to the +24V unregulated power supply output by the transmitter, and the power supply circuit is connected to a DC-DC converter U1 to convert the +24V unregulated power supply into a +5V power supply; The +5V power supply is connected to a DC-DC converter U2 via a voltage regulator tube V1 to convert the +5V power supply into a +3.3V power supply; The +3.3V power supply is connected to a power flip chip U5 to convert the +3.3V power supply into a -3.3V power supply; The +5V power supply is connected to the level conversion circuit, the -3.3V power supply is connected to the operational amplifier in the A / D sampling circuit, and the +3.3V power supply is respectively connected to the main control chip, the detection amplifier circuit, the timing pulse signal circuit and the local status display circuit.

8. The portable radar transmitter integrated detection device according to any one of claims 1 to 4, characterized in that: The power supply circuit, main control chip, main control chip supporting circuit, local status display circuit, level conversion circuit, A / D sampling circuit, detection amplifier circuit and timing pulse signal circuit are integrated on the same PCB board.

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