A nuclear and biochemical multi-factor integrated online monitoring device

Abstract

The utility model discloses a kind of nuclear biochemical multi-factor integrated online monitoring devices, including integrated shell, multiple cavities are separated in integrated shell, control module, nuclear radiation detection unit area, biological detection unit area and chemical detection unit area are respectively arranged in each cavity, control module is electrically connected with nuclear radiation detection unit area, biological detection unit area and chemical detection unit area respectively, multifunctional sampling interface is equipped on the outer wall of integrated shell, multifunctional sampling interface is connected the gas path entrance of biological detection unit area and chemical detection unit area by two gas path pipelines respectively, and shunt valve is equipped at the connecting place of the gas inlet of two gas path pipelines.The utility model integrates four big functional units of control module, nuclear radiation detection, biological detection and chemical detection in a unified shell in the form of separated cavity, greatly reduce the equipment floor area in the space limited scene in security check channel etc..

Description

Technical Field

[0001] The present utility model relates to the technical field of public safety, in particular to an integrated online monitoring device for multiple nuclear, biological and chemical factors. Background Art

[0002] Public safety is the cornerstone of national security and social stability. In places with high density of people and materials such as airports, rail transit, ports, and important conference venues, real-time and online monitoring of harmful factors such as nuclear radiation, biological and chemical (synthetic nuclear, biological and chemical) factors is an important part of building a safety defense line.

[0003] At present, nuclear, biological and chemical monitoring in the field of public safety mainly relies on specially deployed dedicated equipment, that is, nuclear radiation detectors, biological aerosol monitoring and alarm systems, and chemical agent alarm systems are usually procured, installed and operated as three independent sets of devices. This decentralized technical solution has exposed many inherent defects in practice: First, due to the different sensing principles, internal structures and working environment requirements of the three nuclear, biological and chemical detection devices, most of the existing technical solutions adopt a split design. This leads to the need to find separate installation positions for the three sets of equipment in a limited security inspection space (such as a subway security inspection channel), which not only greatly occupies physical space, but also lacks coordinated layout at the hardware level and unified control logic among the devices, making it difficult to achieve integrated linkage response. Secondly, under the mode of independent operation of multiple devices, the security inspection process is artificially fragmented, and operators need to pay attention to the operating status and alarm information of different devices respectively; this serial or parallel decentralized operation mode significantly prolongs the response time from sampling to comprehensive judgment, and cannot meet the urgent demand for "fast and efficient" security inspection work in modern high-traffic transportation hubs (such as fast lanes where the target traffic efficiency needs to be greater than 1200 people per hour). For example, the nuclear radiation monitoring system and monitoring method with the authorized publication number CN108873045A and the biological aerosol monitor with the application number CN202410261476.4 both focus on the optimization of detection technology for a single type of hazard factor. Although they have improved the detection performance in their respective fields, they do not solve the above-mentioned integration problem of multi-factor monitoring. Contents of the Utility Model

[0004] The technical problem solved by the present utility model is to provide an integrated online monitoring device for multiple nuclear, biological and chemical factors.

[0005] This application provides an integrated online monitoring device for nuclear, biological, and chemical multiple factors, including an integrated housing. The integrated housing is divided into multiple cavities, each of which is equipped with a control module, a nuclear radiation detection unit area, a biological detection unit area, and a chemical detection unit area. The control module is electrically connected to the nuclear radiation detection unit area, the biological detection unit area, and the chemical detection unit area, respectively. A multi-functional sampling interface is provided on the outer wall of the integrated housing. The multi-functional sampling interface is connected to the gas inlets of the biological detection unit area and the chemical detection unit area through two gas pipelines, respectively. A branch valve is provided at the connection of the gas inlets of the two gas pipelines, and the branch valve communicates with the control module.

[0006] Furthermore, the biological detection unit area is arranged adjacent to the chemical detection unit area.

[0007] Furthermore, the nuclear radiation detection unit area includes a radiation probe, which is built into the corresponding cavity and faces the detection window opened on the shell, or partially protrudes from the outer surface of the integrated shell.

[0008] Furthermore, the radiation probe is a lanthanum bromide crystal probe, and the nuclear radiation detection unit area also includes an FPGA processor connected to the lanthanum bromide crystal probe via a coaxial cable. The FPGA processor communicates bidirectionally with the control module. The biological detection unit area includes a laser-induced fluorescence monitoring module, and the chemical detection unit area includes an ion mobility spectrum sensor.

[0009] Furthermore, the control module integrates a data processing chip and communicates with each unit area via SPI or I2C bus protocols.

[0010] Furthermore, the monitoring device also includes a linkage alarm system and a communication module. The audible and visual alarm of the linkage alarm system is located on the outer surface of the integrated housing and is electrically connected to the control module. The communication module communicates with the control module and is integrated into the unified cavity. The communication module supports 4G, 5G mobile communication or Ethernet interface and is used to upload data to a remote management platform.

[0011] Compared with existing technologies, this invention integrates four functional units—control module, nuclear radiation detection, biological detection, and chemical detection—into a unified housing in the form of separate cavities. This significantly reduces the equipment footprint in space-constrained scenarios such as security checkpoints. Simultaneously, the tight physical integration provides a foundation for hardware collaboration and data synchronization among the units under unified control. Furthermore, the design of the multi-functional sampling interface, built-in branch valve, and control module enables parallel and synchronous collection and distribution of the same ambient air sample. The control module performs real-time fusion analysis of the nuclear, biological, and chemical data, avoiding the cumbersome process of operators switching between different devices. This achieves the effect of "one sampling, multi-factor synchronous analysis," significantly shortening the overall response time and fully meeting the stringent requirements for rapid clearance and real-time early warning in high-traffic scenarios. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0013] Figure 1 This is a structural diagram of the integrated online monitoring device for nuclear, biological, and chemical multiple factors of this utility model; Figure 2 This is a structural block diagram of the integrated online monitoring device for nuclear, biological, and chemical multifactors of this utility model.

[0014] The reference numerals in the attached figures include: 1. Integrated housing; 2. Cavity; 3. Control module; 4. Nuclear radiation detection unit area; 5. Biological detection unit area; 6. Chemical detection unit area; 7. Multifunctional sampling interface; 8. Gas pipeline; 9. Diverter valve; 10. Radiation probe; 11. FPGA processor; 12. Linkage alarm system; 13. Communication module; 14. Detection window. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0016] like Figures 1-2As shown, the integrated online monitoring device for nuclear, biological and chemical multifactors of this utility model includes an integrated shell 1, which is divided into multiple cavities 2. Each cavity 2 is respectively provided with a control module 3, a nuclear radiation detection unit area 4, a biological detection unit area 5 and a chemical detection unit area 6. The biological detection unit area 5 and the chemical detection unit area 6 are arranged adjacent to each other. The control module 3 is electrically connected to the nuclear radiation detection unit area 4, the biological detection unit area 5, and the chemical detection unit area 6, respectively. A multi-functional sampling interface 7 is provided on the outer wall of the integrated housing 1. This interface 7 is connected to the gas inlets of the biological detection unit area 5 and the chemical detection unit area 6 via two gas pipelines 8, respectively. A branch valve 9 is provided at the connection point of the gas inlets of the two gas pipelines 8. The branch valve 9 communicates with the control module 3 (e.g., SV250). The branch valve 9 drives the valve core to switch gas paths via its actuator (e.g., a cylinder or electric actuator). The control module 3 controls the direction of the airflow or electrical signal entering the actuator via an electromagnetic reversing valve, thereby precisely directing the opening, closing, or switching of the branch valve 9. Additionally, the branch valve 9 is typically equipped with a magnetic switch or position sensor to detect the actual position of the valve core in real time (e.g., whether it leads to the biological or chemical unit) and feed this status signal back to the control module 3. This forms a closed-loop control, ensuring accurate gas path switching. The working principle of this branch valve 9 is a commonly used method in the prior art.

[0017] The nuclear radiation detection unit area 4 includes a radiation probe 10, which is built into the corresponding cavity 2 and faces the detection window 14 opened on the shell, or partially protrudes from the outer surface of the integrated shell 1 (the attached figure shows the detection window 14 built into the corresponding cavity 2 and facing the shell as an example).

[0018] The radiation probe 10 is preferably a lanthanum bromide crystal probe. The nuclear radiation detection unit area 4 also includes an FPGA processor 11 connected to the lanthanum bromide crystal probe via a coaxial cable. The FPGA processor 11 communicates bidirectionally with the control module 3. The biological detection unit area 5 includes a laser-induced fluorescence monitoring module. The chemical detection unit area 6 includes an ion mobility spectrum sensor.

[0019] The control module 3 integrates a data processing chip and communicates with each unit area via SPI or I2C bus protocol. The data processing chip integrates existing mature split-range control algorithms and / or multi-source sensor data fusion algorithms to process data from multiple heterogeneous sensors (such as nuclear, biological, and chemical detection units) and coordinate the control of the branch valve 9 and other actuators (such as sampling pumps).

[0020] The monitoring device also includes a linkage alarm system 12 and a communication module 13. The audible and visual alarm of the linkage alarm system 12 is located on the outer surface of the integrated housing 1 and is electrically connected to the control module 3. The communication module 13 communicates with the control module 3 and is integrated in the unified cavity 2. The communication module 13 supports 4G, 5G mobile communication or Ethernet interface and is used to upload data to the remote management platform.

[0021] This embodiment integrates four functional units—control module 3, nuclear radiation detection, biological detection, and chemical detection—into a unified housing in the form of a separate cavity 2. This significantly reduces the equipment footprint in space-constrained scenarios such as security checkpoints. Simultaneously, the tight physical integration provides a foundation for hardware collaboration and data synchronization among the units under unified control. Furthermore, the adjacent arrangement of the biological and chemical detection units, combined with the unique gas path design of the multi-functional sampling interface 7 and the branch valve 9, allows a single air sample to be distributed to both detection units in parallel and synchronously, greatly shortening the detection cycle and meeting the rapid response requirements in high-flow scenarios. At the same time, the independent gas path 8 effectively avoids cross-contamination, ensuring the accuracy and reliability of the biological and chemical detection results.

[0022] Specifically, the model selection of the above-mentioned electrical components can be made according to the actual situation, as shown in the following example: Control module 3 uses an ARM Cortex-A series processor, such as NXP i.MX8M Mini; the output of the lanthanum bromide crystal probe (such as Saint-Gobain B380) of the nuclear radiation detection unit is connected to the analog front end of FPGA processor 11 (such as Xilinx Artix-7) via a coaxial cable. FPGA processor 11 is connected to control module 3 via SPI bus and one GPIO interrupt pin for transmitting energy spectrum data and responding to control commands; biological detection unit area 5 (such as TriSep®-3000 or LIF-450 laser-induced fluorescence detector) and chemical detection unit area 6 (such as U-SMPS 2100X or 3938 series scanning electromobility particle size spectrometer) are respectively connected to the corresponding UART interface of control module 3 via their UART serial ports (such as 115200 baud rate) to realize bidirectional communication of commands and data; the audible and visual alarm of the linkage alarm system 12 (such as Allen Bradley) The 855PC series is controlled by a GPIO output pin of the control module 3 via a MOSFET drive circuit (which is a mature circuit of existing technology and will not be described in detail here). When the pin outputs a high level, it triggers an alarm, which is a one-way control. The communication module 13 adopts a 4G module (such as Quectel EG25-G) and is connected to the control module 3 through a USB interface to realize bidirectional data interaction with the remote management platform.

[0023] Workflow: First, after the device is powered on, the control module 3 starts up, initializing and self-testing each sensor (nuclear radiation, biological, and chemical) and the FPGA processor 11. After the self-test passes, the system enters standby monitoring mode. Next, ambient air is drawn in through the multi-functional sampling interface 7 on the outer wall of the casing. The air sample is distributed in parallel and equally to the air inlets of the biological detection unit 5 and the chemical detection unit 6 via the branch valve 9. At the same time, the lanthanum bromide crystal probe in the nuclear radiation detection unit 4 continuously monitors the gamma radiation in the environment without gas path sampling. Its raw signal is preprocessed in real time by the FPGA processor 11. Then, the preprocessed nuclear radiation data, the laser-induced fluorescence signal from the biological detection unit 5, and the ion mobility spectrum data from the chemical detection unit 6 are synchronously transmitted to the control module 3 via bus protocols such as SPI / I2C. The algorithm built into the control module 3 performs fusion analysis on the three types of data and, based on preset safety thresholds (e.g., nuclear radiation dose rate > 0.1 μSv / h, bioaerosol concentration > 100 μg / h), performs the analysis. The PTS / L (Protective Safety System / Lover) performs a comprehensive risk assessment. Once the comprehensive risk assessment result exceeds the safety threshold, the control module 3 immediately sends a command to the linkage alarm system 12, triggering the audible and visual alarm to emit a strong visual flash and a high-decibel warning sound (e.g., 98dB) to attract the attention of on-site personnel. At the same time, the communication module 13 uploads the complete alarm event details, risk level, and all relevant monitoring data to the remote security inspection management platform in real time to support the back-end command and decision-making.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0025] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0026] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A multi-factor integrated online monitoring device for nuclear, biological, and chemical processes, characterized in that, The system includes an integrated housing (1), which is divided into multiple cavities (2). Each cavity (2) is equipped with a control module (3), a nuclear radiation detection unit area (4), a biological detection unit area (5), and a chemical detection unit area (6). The control module (3) is electrically connected to the nuclear radiation detection unit area (4), the biological detection unit area (5), and the chemical detection unit area (6), respectively. The outer wall of the integrated housing (1) is provided with a multi-functional sampling interface (7). The multi-functional sampling interface (7) is connected to the gas inlets of the biological detection unit area (5) and the chemical detection unit area (6) through two gas pipelines (8), respectively. A branch valve (9) is provided at the connection of the gas inlets of the two gas pipelines (8). The branch valve (9) communicates with the control module (3).

2. The integrated online monitoring device for nuclear, biological, and chemical multiple factors as described in claim 1, characterized in that, The biological detection unit area (5) is arranged adjacent to the chemical detection unit area (6).

3. The integrated online monitoring device for nuclear, biological, and chemical multiple factors as described in claim 2, characterized in that, The nuclear radiation detection unit area (4) includes a radiation probe (10), which is built into the corresponding cavity (2) and faces the detection window (14) opened on the shell, or partially protrudes from the outer surface of the integrated shell (1).

4. The integrated online monitoring device for nuclear, biological, and chemical multiple factors as described in claim 3, characterized in that, The radiation probe (10) is a lanthanum bromide crystal probe. The nuclear radiation detection unit area (4) also includes an FPGA processor (11) connected to the lanthanum bromide crystal probe via a coaxial cable. The FPGA processor (11) communicates bidirectionally with the control module (3). The biological detection unit area (5) includes a laser-induced fluorescence monitoring module. The chemical detection unit area (6) includes an ion mobility spectrum sensor.

5. The integrated online monitoring device for nuclear, biological, and chemical multiple factors as described in claim 4, characterized in that, The control module (3) integrates a data processing chip and communicates with each unit area via SPI or I2C bus protocol.

6. The integrated online monitoring device for multiple nuclear, biological, and chemical factors as described in claim 5, characterized in that, The monitoring device also includes a linkage alarm system (12) and a communication module (13). The sound and light alarm of the linkage alarm system (12) is set on the outer surface of the integrated housing (1) and is electrically connected to the control module (3). The communication module (13) communicates with the control module (3) and is integrated in the unified cavity (2). The communication module (13) supports 4G, 5G mobile communication or Ethernet interface and is used to upload data to the remote management platform.

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