X-ray mobile flaw detection device and method thereof

Abstract

The invention discloses an X-ray mobile flaw detection device. The X-ray mobile flaw detection device comprises a main machine assembly and an auxiliary machine assembly, the main machine assembly and the auxiliary machine assembly are the same in appearance, each of the main machine assembly and the auxiliary machine assembly comprises a machine shell, each machine shell comprises a machine body and an end cover, each end cover is fixedly connected to the side wall of the corresponding machine body, and a power socket, a voltage coulombmeter and a ship-shaped switch are arranged on the side wall of each end cover. A polymer lithium battery, a voltage reduction module, a 485 relay, a wireless communication module and a unit board control card are arranged in the machine body, the main machine assembly and the auxiliary machine assembly are connected through the wireless communication module, and a unit board connected with the unit board control card is arranged on the outer side wall of the machine body. A lithium battery is arranged in the system, site arrangement is facilitated, a radiation probe is arranged in the main machine, response is quick, and the main machine communicates with the auxiliary machine through wireless communication, so that the state is displayed synchronously.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to an X-ray mobile flaw detection device and a method thereof. Background Art

[0002] The previous indicator light was controlled by a four-core wire (two cores provided power and two cores were manually controlled to switch to the ready irradiation state). The disadvantages were:

[0003] 1. Mobile flaw detection operation consumes a lot of manpower and material resources. For example, it takes 4 control cables of more than 400 meters to carry, and there are many related parts and tools, which is time-consuming and labor-intensive, and has low safety.

[0004] 2. Manual control is required to switch the status of the indicator light, and dose interlock cannot be achieved. This does not meet standard requirements and may easily cause accidental exposure.

[0005] To this end, we propose an X-ray mobile flaw detection device and method to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0007] In view of the problems existing in the above-mentioned existing X-ray mobile flaw detection device and method, the present invention is proposed.

[0008] Therefore, the purpose of the present invention is to provide an X-ray mobile flaw detection device and method thereof, which has a built-in lithium battery for easy on-site deployment, a main unit containing a radiation probe for rapid response, and a main unit communicating with an auxiliary unit through wireless communication to synchronously display the status.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: an X-ray mobile flaw detection device, comprising:

[0010] Main engine components and auxiliary engine components;

[0011] The main unit component and the auxiliary unit component have the same appearance. Both the main unit component and the auxiliary unit component include a casing, the casing includes a body and an end cover, and the end cover is fixedly connected to the side wall of the body. A power socket, a voltage and electricity meter, and a rocker switch are arranged on the side wall of the end cover. A polymer lithium battery, a step-down module, a 485 relay, a wireless communication module, and a unit board control card are arranged in the body. The main unit component and the auxiliary unit component are connected via the wireless communication module. A unit board connected to the unit board control card is arranged on the outer side wall of the body.

[0012] A radiation probe is also provided in the body of the host component, and the number of the auxiliary components is three. During normal operation, the host component is placed in the direction of the main radiation line of the external flaw detector, and the auxiliary components are placed in other directions. A control algorithm is provided in the radiation probe, and when the dose is detected, a 485 specific instruction is sent to achieve a quick response.

[0013] As a preferred solution of the X-ray mobile flaw detection device described in the present invention, wherein: the polymer lithium battery is used to power the working status indicator light for the X-ray mobile flaw detection; the rocker switch is used to control the on and off of the circuit, and control the on and off of the working status indicator light for the X-ray mobile flaw detection; the voltage and power meter is used to measure the voltage and power of the polymer lithium battery; the step-down module is used to stably output the voltage of the polymer lithium battery to DC5V to power the remaining components.

[0014] As a preferred solution of the X-ray mobile flaw detection device described in the present invention, the specific parameters of the wireless communication module include: air rate: 1.2-62.5kbps; working frequency band: 410-525MHz; reference distance: 5km; transmission power: 22dBm; working voltage: DC +4.5-5.5v; receiving sensitivity: -129dBm; transmission current: ≤102mA; serial port rate: 1200-115200bps; receiving current: ≤14mA; when receiving specific instructions from the radiation probe 485, the wireless communication module of the host component synchronously sends it to the wireless communication module in the auxiliary component.

[0015] As a preferred solution of the X-ray mobile flaw detection device described in the present invention, the parameters of the radiation probe include: power supply: DC5V; energy response: 40keV~1.5MeV, 3. Measurement range: 0.01μSv / h~100mSv / h; protection alarm response time <1 second.

[0016] As a preferred solution of the X-ray mobile flaw detection device described in the present invention, the unit board control card has two programs: preparation, displayed in green; irradiation, displayed in red; the unit board control card is connected to the unit board, and the unit board is used to display preparation and irradiation.

[0017] As a preferred solution of the X-ray mobile flaw detection device of the present invention, wherein: the 485 relay is provided with NO and com ports, and the unit board control card is provided with 1 and GND ports.

[0018] As a preferred solution of the X-ray mobile flaw detection device of the present invention, the control algorithm includes dose rate calculation, and the overall formula is:

[0019]

[0020] Where: count represents the average value of pulse counts;

[0021] deadtime means dead time;

[0022] background represents the background radiation count;

[0023] slope represents the slope of the dose rate;

[0024] The count smoothing calculation formula for different dose levels is as follows:

[0025] At low dose levels, the average pulse counts were:

[0026]

[0027] At medium dose level, the average pulse count is:

[0028]

[0029] At high dose levels, average pulse counts:

[0030]

[0031] As a preferred solution of the X-ray mobile flaw detection device of the present invention, the dose level switching condition is:

[0032] When pulse_cnt>30 and dose_level=DOSE_L or DOSE_M:

[0033] Switch to dose_level = DOSE_H;

[0034] 20>pulse_cnt>6 and dose_level=DOSE_L or DOSE_H:

[0035] Switch to dose_level = DOSE_M;

[0036] When pulse_cnt<3 and dose_level=DOSE_M or DOSE_H:

[0037] Switch to dose_level = DOSE_L;

[0038] The calculation formula of cumulative dose value is:

[0039]

[0040] in:

[0041] dose_temp is the last stored cumulative dose value (if it has been stored)

[0042] cnt_total is the total number of accumulated pulse counts.

[0043] As a preferred solution of the X-ray mobile flaw detection device of the present invention, the use of the host component in the X-ray mobile flaw detection device includes an unpowered state and a powered-on state:

[0044] The unpowered state: the rocker switch is not closed, the polymer lithium battery cannot supply power to the voltage meter, step-down module, unit board, unit board control card, relay, wireless communication module, radiation probe, and the host cannot operate;

[0045] The power-on state is in the preparatory stage: the boat switch is closed, the polymer lithium battery supplies power to the voltage meter and the step-down module, the voltage meter outputs and displays the voltage value and the remaining power value, the step-down module steadily reduces the 12V voltage to 5V, and the 5V voltage supplies power to the unit board, the unit board control card, the 485 relay, the wireless communication module, and the radiation probe;

[0046] When no radiation dose is received, the radiation probe does not output 485 signal (closed signal), the 485 relay does not receive the closed signal, and the NO and com ports remain disconnected; the wireless communication module does not receive the closed signal and continues to send wireless signals (disconnected signals). Because the NO and com ports of the 485 relay are disconnected, the connected unit control card and GND port are disconnected, and the unit board control card outputs "Ready" through the screen line control unit board.

[0047] The power-on state is in the irradiation stage: when receiving the radiation dose, the radiation probe outputs a 485 signal (closed signal), the 485 relay receives the closed signal, and the NO and com ports are switched to a closed state; the wireless communication module receives the closed signal and continuously sends a wireless signal (close-open signal). Because the NO and com ports of the 485 relay are in a closed state, the connected unit control card and GND port are in a closed state, and the unit board control card outputs "irradiation" through the screen line control unit board.

[0048] As a preferred solution of the X-ray mobile flaw detection device of the present invention, the use of the auxiliary machine component in the X-ray mobile flaw detection device includes an unpowered state and a powered-on state:

[0049] The non-starting state: the boat switch is not closed, the polymer lithium battery cannot supply power to the voltage meter, step-down module, unit board, unit board control card, relay, wireless communication module, and the auxiliary machine cannot run;

[0050] The power-on state is in the preparation stage: the boat switch 3 is closed, the polymer lithium battery 2 supplies power to the voltage meter and the step-down module, the voltage meter output displays the voltage value and the remaining power value, the step-down module stably reduces the 12V voltage to 5V, and the 5V voltage supplies power to the unit board, the unit board control card, the 485 relay, and the wireless communication module; because the host does not receive the radiation dose, the wireless communication module receives a disconnect signal, the 485 relay receives a disconnect signal, and the NO and com ports remain disconnected; because the 485 relay NO and com ports are disconnected, the connected unit control card and GND port are disconnected, and the unit board control card outputs "ready" through the screen line control unit board;

[0051] The power-on state is in the irradiation stage: when the host receives the radiation dose, the wireless communication module receives a close-open signal, the 485 relay receives a close signal, and the NO and com ports are switched to a closed state; because the 485 relay NO and com ports are in a closed state, the connected unit control card and GND port are in a closed state, and the unit board control card outputs "irradiation" through the screen line control unit board.

[0052] Beneficial effects of the present invention: the present invention has a built-in lithium battery, which is convenient for on-site deployment; the main unit contains a radiation probe for rapid response; the main unit communicates with the auxiliary unit through wireless communication and displays the status synchronously; the system calculates the dose rate in real time and compares it with a preset alarm threshold, which can trigger an alarm in time, thereby improving the safety of the system and being able to promptly remind users when the radiation exceeds the standard to avoid potential radiation hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0054] Figure 1 It is a schematic diagram of the overall structure of the X-ray mobile flaw detection device and method of the present invention.

[0055] Figure 2 The figure is a schematic diagram of the internal structure of the mobile X-ray flaw detection device and method of the present invention. DETAILED DESCRIPTION

[0056] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0057] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0058] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0059] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0060] Reference Figure 1 , provides an X-ray mobile flaw detection device, comprising:

[0061] Main engine components and auxiliary engine components;

[0062] The main unit component and the auxiliary unit component have the same appearance. Both the main unit component and the auxiliary unit component include a casing, which includes a body and an end cover, and the end cover is fixedly connected to the side wall of the body. A power socket 1, a voltage and electricity meter 4 and a rocker switch 3 are arranged on the side wall of the end cover. A polymer lithium battery 2, a step-down module 5, a 485 relay 8, a wireless communication module 9 and a unit board control card 7 are arranged in the body. The main unit component and the auxiliary unit component are connected through the wireless communication module 9. A unit board 6 connected to the unit board control card 7 is arranged on the outer side wall of the body;

[0063] A radiation probe 10 is also provided in the body of the main unit component, and there are three auxiliary unit components. During normal operation, the main unit component is placed in the direction of the main radiation line of the external flaw detector, and the auxiliary unit is placed in other directions. A control algorithm is provided in the radiation probe, and when the dose is detected, a 485 specific instruction is sent to achieve a quick response.

[0064] Among them, the polymer lithium battery 2 is used to power the working status indicator light for X-ray mobile flaw detection; the boat-shaped switch 3 is used to control the on and off of the circuit, and control the on and off of the working status indicator light for X-ray mobile flaw detection; the voltage and power meter 4 is used to measure the voltage and power of the polymer lithium battery; the step-down module 5 is used to stabilize the voltage of the polymer lithium battery 2 to output DC5V to power the remaining components.

[0065] Furthermore, the specific parameters of the wireless communication module 9 include: air rate: 1.2-62.5kbps; operating frequency band: 410-525MHz; reference distance: 5km; transmission power: 22dBm; operating voltage: DC +4.5-5.5v; receiving sensitivity: -129dBm; transmission current: ≤102mA; serial port rate: 1200-115200bps; receiving current: ≤14mA; when receiving specific instructions from the radiation probe 485, the wireless communication module of the host component synchronously sends it to the wireless communication module in the auxiliary component.

[0066] Among them, the parameters of the radiation probe 10 include: power supply: DC5V; energy response: 40keV~1.5MeV, 3. Measurement range: 0.01μSv / h~100mSv / h; protection alarm response time <1 second.

[0067] The unit board control card 7 has two programs: preparation, which is displayed in green; and illumination, which is displayed in red. The unit board control card 7 is connected to the unit board 6, and the unit board 6 is used to display preparation and illumination.

[0068] Among them, the 485 relay 8 is provided with NO and com ports, and the unit board control card 7 is provided with 1 and GND ports.

[0069] During use, the host components in the X-ray mobile flaw detection device are used in the off-state and on-state:

[0070] Not powered on: The rocker switch 3 is not closed, the polymer lithium battery 2 cannot supply power to the voltage meter 4, the step-down module 5, the unit board 6, the unit board control card 7, the 485 relay 8, the wireless communication module 9, and the radiation probe 10, and the host cannot run;

[0071] Power-on state and in the preparation stage: the boat switch 3 is closed, the polymer lithium battery 2 supplies power to the voltage meter 4 and the step-down module 5, the voltage meter 4 outputs and displays the voltage value and the remaining power value, the step-down module 5 steadily reduces the 12V voltage to 5V, and the 5V voltage supplies power to the unit board 6, the unit board control card 7, the 485 relay 8, the wireless communication module 9, and the radiation probe 10;

[0072] When the radiation dose is not received, the radiation probe 10 does not output the 485 signal (closed signal), the 485 relay 8 does not receive the closed signal, and the NO and com ports remain disconnected; the wireless communication module does not receive the closed signal and continues to send wireless signals (disconnected signals). Because the 485 relay 8 NO and com ports are disconnected, the connected unit board control card 71 and GND port are disconnected, and the unit board control card 7 outputs the display "Ready" through the screen line control unit board 6;

[0073] Power-on state and in the irradiation stage: when receiving the radiation dose, the radiation probe 10 outputs a 485 signal (closed signal), the 485 relay 8 receives the closed signal, and the NO and com ports are switched to a closed state; the wireless communication module receives the closed signal and continues to send wireless signals (closed-open signals). Because the 485 relay 8 NO and com ports are in a closed state, the connected unit board control card 71 and GND ports are in a closed state, and the unit board control card 7 outputs and displays "irradiation" through the screen line control unit board 6.

[0074] Furthermore, the use of the auxiliary machine component in the X-ray mobile flaw detection device includes an unpowered state and a powered-on state:

[0075] Not powered on: The rocker switch 3 is not closed, the polymer lithium battery 2 cannot supply power to the voltage meter 4, the step-down module 5, the unit board 6, the unit board control card 7, the 485 relay 8, and the wireless communication module 9, and the auxiliary machine cannot run;

[0076] Power-on state and in the preparation stage: the boat switch 3 is closed, the polymer lithium battery 2 supplies power to the voltage meter 4 and the step-down module 5, the voltage meter 4 outputs and displays the voltage value and the remaining power value, the step-down module 5 steadily reduces the 12V voltage to 5V, and the 5V voltage supplies power to the unit board 6, the unit board control card 7, the 485 relay 8, and the wireless communication module 9; because the host does not receive the radiation dose, the wireless communication module 9 receives a disconnect signal, the 485 relay 8 receives a disconnect signal, and the NO and com ports remain disconnected; because the 485 relay 8 NO and com ports are disconnected, the connected unit board control card 71 and GND ports are disconnected, and the unit board control card 7 outputs the display "Ready" through the screen line control unit board 6;

[0077] Power-on state and in the irradiation stage: when the host receives the radiation dose, the wireless communication module 9 receives a close-open signal, the 485 relay 8 receives a close signal, and the NO and com ports are switched to a closed state; because the 485 relay 8 NO and com ports are in a closed state, the connected unit board control card 71 and GND port are in a closed state, and the unit board control card 7 outputs "irradiation" through the screen line control unit board 6.

[0078] In addition, please note:

[0079] 1. Before performing mobile flaw detection, please make sure the working status indicator light is fully charged;

[0080] 2. Place the main machine (identifiable on the nameplate) in the direction of the main ray of the flaw detector, and the auxiliary machine in other directions;

[0081] 3. During on-site flaw detection, one host machine and three slave machines are arranged in four directions of the site, and the host machine and slave machines are synchronized through wireless communication modules.

[0082] Among them, the control algorithm includes dose rate calculation, the overall formula is:

[0083]

[0084] Where: count represents the average value of pulse counts;

[0085] deadtime means dead time;

[0086] background represents the background radiation count;

[0087] slope represents the slope of the dose rate;

[0088] The count smoothing calculation formula for different dose levels is as follows:

[0089] At low dose levels, the average value of pulse counts is:

[0090]

[0091] At medium dose level, the average pulse count is:

[0092]

[0093] At high dose levels, average pulse counts:

[0094]

[0095] Furthermore, the dosage level switching condition is:

[0096] When pulse_cnt>30 and dose_level=DOSE_L or DOSE_M:

[0097] Switch to dose_level = DOSE_H;

[0098] 20>pulse_cnt>6 and dose_level=DOSE_L or DOSE_H:

[0099] Switch to dose_level = DOSE_M;

[0100] When pulse_cnt<3 and dose_level=DOSE_M or DOSE_H:

[0101] Switch to dose_level = DOSE_L;

[0102] The calculation formula of cumulative dose value is:

[0103]

[0104] in:

[0105] dose_temp is the last stored cumulative dose value (if it has been stored)

[0106] cnt_total is the total number of accumulated pulse counts.

[0107] Specific examples:

[0108] Assumptions:

[0109] Dead time: 0.0001 (100 μs)

[0110] Background radiation count: 0.05

[0111] Dose rate slope: 0.1

[0112] Initial alarm threshold (alarmValue): 10μSv / h

[0113] Pulse count (pulse_cnt): 25

[0114] Cumulative pulse count (cnt_total): 1000

[0115] 1. Dose rate calculation

[0116] Scenario: Medium-dose level

[0117] Assume that the pulse count is 25, and the dose level dose_level is switched to the medium dose level DOSE_M. Take the records of the last 10 pulse counts.

[0118] cnt_record array (take the most recent 10 count records):

[0119] cnt_record={23,24,25,26,25,24,23,24,25,24

[0120] Pulse count average value (count):

[0121]

[0122] Dose rate calculation (doseH):

[0123]

[0124] Alarm judgment:

[0125] doseH=243.08μSv / h, which is greater than the alarm threshold alarmValue=10μSv / h, so the alarm will be triggered.

[0126] 2. Cumulative dose calculation

[0127] Assuming that the current cumulative pulse count cnt_total = 1000, calculate the cumulative dose value according to the formula:

[0128] Stored cumulative dose value (dose_temp):

[0129] Assume that the previously stored cumulative dose value is 5μSv;

[0130] Calculation of additional dose:

[0131]

[0132] The embodiment makes the dose rate calculation more accurate by smoothing the pulse count and switching between different dose levels. Specifically:

[0133] At low dose levels, more pulse counts (100 times) are used to average fluctuations, reduce noise effects, and obtain a more stable dose rate;

[0134] At high dose levels, fewer pulse counts (5 times) are used to speed up the response and reflect higher radiation environment changes in a timely manner.

[0135] Impact: The system's adaptability in different radiation environments is improved, and it can not only stably reflect radiation at low dose levels, but also quickly respond to sudden changes at high dose levels.

[0136] In addition, the system can trigger an alarm in time by calculating the dose rate in real time and comparing it with the preset alarm threshold. In the embodiment, the calculated dose rate exceeds the threshold, thereby triggering the alarm mechanism;

[0137] Impact: This design improves the safety of the system and can promptly alert users when radiation exceeds the standard, thus avoiding potential radiation hazards.

[0138] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An X-ray mobile flaw detection device, characterized in that: include: Main engine components and auxiliary engine components; The main unit component and the auxiliary unit component have the same appearance. Both the main unit component and the auxiliary unit component include a casing. The casing includes a body and an end cover, and the end cover is fixedly connected to the side wall of the body. The side wall of the end cover is provided with a power socket (1), a voltage and electricity meter (4) and a rocker switch (3). The body is provided with a polymer lithium battery (2), a step-down module (5), a 485 relay (8), a wireless communication module (9) and a unit board control card (7). The main unit component and the auxiliary unit component are connected via the wireless communication module (9). The outer side wall of the body is provided with a unit board (6) connected to the unit board control card (7); A radiation probe (10) is also arranged in the body of the main unit component. The number of the auxiliary unit components is three. When working normally, the main unit component is placed in the direction of the main radiation line of the external flaw detector, and the auxiliary unit is placed in other directions. A control algorithm is arranged in the radiation probe. When the dose is detected, a 485 specific instruction is sent to achieve a rapid response.

2. The X-ray mobile flaw detection device according to claim 1, characterized in that: The polymer lithium battery (2) is used to supply power to the working status indicator light for mobile X-ray flaw detection; the rocker switch (3) is used to control the on / off of the circuit and control the on / off of the working status indicator light for mobile X-ray flaw detection; the voltage and power meter (4) is used to measure the voltage and power of the polymer lithium battery; the step-down module (5) is used to output the voltage of the polymer lithium battery (2) in a stable manner as DC5V to supply power to other components.

3. The X-ray mobile flaw detection device according to claim 2, characterized in that: The specific parameters of the wireless communication module (9) include: air rate: 1.2-62.5 kbps; working frequency band: 410-525 MHz; reference distance: 5 km; transmission power: 22 dBm; working voltage: DC +4.5-5.5 v; receiving sensitivity: -129 dBm; transmission current: ≤102 mA; serial port rate: 1200-115200 bps; receiving current: ≤14 mA; when receiving a specific instruction from the radiation probe 485, the wireless communication module of the host component synchronously sends it to the wireless communication module in the auxiliary component.

4. The X-ray mobile flaw detection device according to claim 3, characterized in that: The parameters of the radiation probe (10) include: power supply: DC5V; energy response: 40keV-1.5MeV; 3. measurement range: 0.01μSv / h-100mSv / h; protection alarm response time <1 second.

5. The X-ray mobile flaw detection device according to claim 4, characterized in that: The unit board control card (7) has two programs: preparation, which is displayed in green; and illumination, which is displayed in red. The unit board control card (7) is connected to the unit board (6), and the unit board (6) is used to display preparation and illumination.

6. The X-ray mobile flaw detection device according to claim 5, characterized in that: The 485 relay (8) is provided with NO and COM ports, and the unit board control card (7) is provided with 1 and GND ports.

7. The X-ray mobile flaw detection device according to claim 1, characterized in that: The control algorithm includes the dose rate calculation, the overall formula is: Where: count represents the average value of pulse counts; deadtime means dead time; background represents the background radiation count; slope represents the slope of the dose rate; The count smoothing calculation formula for different dose levels is as follows: At low dose levels, the average pulse counts were: At medium dose level, the average pulse count is: At high dose levels, average pulse counts: 。 8. The X-ray mobile flaw detection device according to claim 7, characterized in that: The dose level switching conditions: When pulse_cnt>30 and dose_level=DOSE_L or DOSE_M: Switch to dose_level = DOSE_H; 20>pulse_cnt>6 and dose_level=DOSE_L or DOSE_H: Switch to dose_level = DOSE_M; When pulse_cnt<3 and dose_level=DOSE_M or DOSE_H: Switch to dose_level = DOSE_L; The calculation formula of cumulative dose value is: in: dose_temp is the cumulative dose value stored last time; cnt_total is the total number of accumulated pulse counts.

9. The X-ray mobile flaw detection device according to claim 6, characterized in that: The use of the host component in the X-ray mobile flaw detection device includes an unpowered state and a powered-on state: The non-powered state: the rocker switch (3) is not closed, the polymer lithium battery (2) cannot supply power to the voltage meter (4), the step-down module (5), the unit board (6), the unit board control card (7), the 485 relay (8), the wireless communication module (9), and the radiation probe (10), and the host cannot operate; In the power-on state and in the preparatory stage: the rocker switch (3) is closed, the polymer lithium battery (2) supplies power to the voltage and electricity meter (4) and the step-down module (5), the voltage and electricity meter (4) outputs and displays the voltage value and the remaining power value, the step-down module (5) stably reduces the 12V voltage to 5V, and the 5V voltage supplies power to the unit board (6), the unit board control card (7), the 485 relay (8), the wireless communication module (9), and the radiation probe (10); When no radiation dose is received, the radiation probe (10) does not output a 485 signal (closed signal), the 485 relay (8) does not receive a closed signal, and the NO and com ports remain disconnected; The wireless communication module does not receive the closing signal and continues to send the wireless signal (disconnection signal). Because the NO and com ports of the 485 relay (8) are in the disconnected state, the 1 and GND ports of the connected unit board control card (7) are in the disconnected state, and the unit board control card (7) outputs the display "ready" through the screen line control unit board (6); The power-on state and the irradiation stage: when receiving the radiation dose, the radiation probe (10) outputs a 485 signal (closed signal), the 485 relay (8) receives the closed signal, and the NO and com ports are switched to a closed state; The wireless communication module receives the closing signal and continuously sends the wireless signal (open / close signal). Since the NO and com ports of the 485 relay (8) are in a closed state, the 1 and GND ports of the connected unit board control card (7) are in a closed state. The unit board control card (7) outputs the display "irradiation" through the screen line control unit board (6).

10. The X-ray mobile flaw detection device according to claim 9, characterized in that: The use of the auxiliary machine component in the X-ray mobile flaw detection device includes an unpowered state and a powered-on state: The non-starting state: the rocker switch (3) is not closed, the polymer lithium battery (2) cannot supply power to the voltage meter (4), the step-down module (5), the unit board (6), the unit board control card (7), the 485 relay (8), the wireless communication module (9), and the auxiliary machine cannot operate; The power-on state is in the preparation stage: the rocker switch (3) is closed, the polymer lithium battery (2) supplies power to the voltage meter (4) and the step-down module (5), the voltage meter (4) outputs and displays the voltage value and the remaining power value, the step-down module (5) stably reduces the 12V voltage to 5V, and the 5V voltage supplies power to the unit board (6), the unit board control card (7), the 485 relay (8), and the wireless communication module (9); because the host does not receive the radiation dose, the wireless communication module (9) receives a disconnection signal, the 485 relay (8) receives a disconnection signal, and the NO and com ports remain disconnected; because the NO and com ports of the 485 relay (8) are in a disconnected state, the connected unit board control card (7) 1 and GND ports are in a disconnected state, and the unit board control card (7) outputs a display "ready" through the screen line control unit board (6); The power-on state is in the irradiation stage: when the host receives the radiation dose, the wireless communication module (9) receives a close signal, the 485 relay (8) receives a close signal, and the NO and com ports are switched to a closed state; because the NO and com ports of the 485 relay (8) are in a closed state, the 1 and GND ports of the connected unit board control card (7) are in a closed state, and the unit board control card (7) outputs a display "irradiation" through the screen line control unit board (6).

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