Multi-dimensional intelligent exploration integrated system based on criminal investigation scene investigation

Abstract

The invention relates to a multi-dimensional intelligent exploration integrated system based on criminal investigation scene investigation, and belongs to the technical field of criminal investigation scene investigation. The system comprises an integrated docking module and a detachable function module which is in communication connection with the integrated docking module through a reconfigurable hardware interface unit, the detachable functional module comprises an ultra-wide spectrum intelligent exploration module, an exfoliated cell searching and showing module, a visual laser targeting module and an on-site light distribution evidence obtaining module; the integrated docking module comprises a general backboard interface unit; a multi-protocol communication control unit; an embedded drive controller; wherein each functional module is in hot plug connection with the general backboard interface unit through the modular physical interface group, data interaction is established between the functional modules and the multi-protocol communication control unit through the protocol adaptive conversion module, and function scheduling is executed by the embedded driving controller. Flexible combination and efficient cooperation of all the functional modules are achieved, and the efficiency and accuracy of criminal investigation scene investigation are greatly improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of criminal investigation scene investigation, and particularly relates to a multi-dimensional intelligent investigation integrated system based on criminal investigation scene investigation. BACKGROUND

[0002] Criminal investigation scene investigation is transforming from traditional decentralized equipment to intelligent and modular systems to address the issues of low efficiency and data silos. The modular design of the solution (such as hot-plug interface, independent drive) is aimed at this trend, aiming to achieve "one-stop" investigation.

[0003] Existing criminal investigation equipment (such as spectrometers, microscopic modules) often uses proprietary interfaces and protocols, which cannot be seamlessly integrated. This increases the complexity and time cost of on-site deployment. Traditional investigation requires carrying multiple independent devices (spectrometers, cell collectors, laser positioners, etc.), and the protocols between devices are not compatible, and data cannot be interchanged, resulting in fragmented operation processes and low efficiency.

[0004] Biological traces such as exfoliated cells are easily missed, and existing technologies rely on manual search, which is low in enrichment efficiency and easy to contaminate samples. Factors such as light conditions (such as reflection, dark field), mechanical vibration affect the accuracy of laser positioning and the quality of imaging. A single device failure can cause the investigation to be interrupted, and modules cannot be quickly replaced on site. During on-site investigation, device plugging or power fluctuations may cause power failure, affecting continuity. Different devices need to learn the operation process independently (such as spectral parameter adjustment, laser wavelength matching), relying on human experience. SUMMARY

[0005] To solve the above problems existing in the prior art, the application provides a multi-dimensional intelligent investigation integrated system based on criminal investigation scene investigation, and the purpose of the application can be achieved through the following technical solutions: A multi-dimensional intelligent investigation integrated system based on criminal investigation scene investigation, comprising: an integrated docking module, and a detachable functional module in communication connection with the integrated docking module via a reconfigurable hardware interface unit; the detachable functional module comprises an ultra-wide spectrum intelligent investigation module, an exfoliated cell search and appearance module, a visual laser targeting module, and an on-site light distribution evidence collection module; The integrated docking module comprises: a universal backplane interface unit for providing standardized electrical connection and mechanical locking structure; a multi-protocol communication control unit for supporting Ethernet, CAN bus, and custom serial protocol; an embedded drive controller for built-in drive firmware matching each functional module; Each functional module is connected to the universal backboard interface unit through a modular physical interface group via hot plug, and data interaction is established with the multi-protocol communication control unit via a protocol adaptive conversion module, and a function schedule is executed by an embedded drive controller.

[0006] Specifically, the reconfigurable hardware interface unit comprises: A modular physical interface group integrated at the bottom of each functional module, comprising power contacts, a data pin array, and mechanical guide slots; A protocol adaptive conversion module for real-time identification and conversion of communication protocols of different functional modules.

[0007] Specifically, the ultrawide spectrum intelligence investigation module is configured to perform material characteristic response extraction and enhancement operations on a target area through an ultraviolet-visible-infrared wide spectrum imaging sensor and a multi-spectrum analysis processor.

[0008] Specifically, the exfoliated cell search and display module is configured to realize positioning and enrichment and development of trace biological marks through a negative pressure adsorption head combined with a fluorescent labeling imaging assembly.

[0009] Specifically, the visual laser targeting module is configured to carry a wavelength-tunable laser source and a digital holographic positioner for generating a visible laser mark and exciting specific trace fluorescence.

[0010] Specifically, the on-site light distribution evidence acquisition module is configured to integrate a multi-axis LED array, a polarization filter wheel, and a color temperature adjuster for outputting parameter-programmable evidence enhancement lighting.

[0011] Specifically, the multi-protocol communication control unit is configured to: establish a dual-channel communication link, wherein the main channel transmits real-time image data using a gigabit Ethernet protocol, and the standby channel transmits device control instructions using an RS-485 bus; when the signal strength of the main channel is lower than a preset threshold, a data packet retransmission mechanism is automatically enabled; if continuous retransmission fails, the standby channel is switched to maintain basic communication.

[0012] Further, the modular physical interface group further comprises: magnetic power contacts and foolproof data pin arrays for assisting positioning and preventing reverse plugging through magnetic attraction; a replaceable protocol adapter card slot for compatible RS-485 communication protocol and optical fiber communication expansion protocol, and switching communication protocols through a plug-in hardware card; a dual-channel redundant power supply path that automatically switches to a standby path when the main power contact is abnormal, ensuring continuous power supply when the functional module is hot-plugged.

[0013] Preferably, the digital holographic positioner is configured to: The FPGA-based dynamic light path calibration unit compensates for laser beam deviation caused by mechanical vibration in real time, and adjusts the divergence angle precision through a feedback sensor; The multi-band fluorescence excitation database stores the optimal excitation wavelength combination of specific traces and automatically matches the spectral parameters of the wavelength tunable laser source in conjunction with the wavelength. The laser energy closed-loop control system adaptively adjusts the output power according to the distance of the physical evidence.

[0014] Specifically, each of the super-wide spectrum intelligent investigation module, the exfoliated cell search and display module, the visual laser targeting module and the on-site light distribution evidence collection module is configured as: When accessing the integrated docking module alone, the embedded drive controller loads a dedicated drive firmware to independently perform full-featured operations without the need for cooperation with other modules. Through the physical isolation design of the reconfigurable hardware interface unit, the power loop, data bus and control signal of any functional module are independent of each other at the electrical level, enabling hot replacement of faulty modules without affecting the overall operation of the system.

[0015] The present application has the following advantages: The multi-dimensional intelligent investigation integrated system has the following advantages and positive effects. First, the system realizes modular design, and each detachable functional module can be conveniently connected with the integrated docking module through the reconfigurable hardware interface unit, greatly improving the flexibility and efficiency of on-site deployment.

[0016] In terms of function, the super-wide spectrum intelligent investigation module can extract and enhance the material characteristic response of the target area, providing more abundant material information for criminal investigators and helping to discover potential physical evidence clues.

[0017] The wavelength tunable laser source and digital holographic positioner carried by the visual laser targeting module can generate visible laser marks and excite specific trace fluorescence, while a series of advanced configurations such as the FPGA-based dynamic light path calibration unit, the multi-band fluorescence excitation database and the laser energy closed-loop control system effectively overcome the influence of factors such as light conditions and mechanical vibration on laser positioning accuracy and imaging quality, improving the accuracy of physical evidence discovery and positioning.

[0018] The on-site light distribution evidence collection module integrates a multi-axis LED array, a polarization filter wheel and a color temperature adjuster, can output parameter programmable evidence enhancement illumination, provides more suitable light conditions for evidence collection in different scenes, and helps to obtain clear and accurate evidence images.

[0019] In terms of communication and interface design, the multi-protocol communication control unit establishes a dual-channel communication link, which guarantees stable transmission of real-time image data and device control instructions. Even if the main channel fails, the system can maintain basic communication through the backup channel. The design of the modular physical interface group, such as the magnetic power contact and the foolproof data needle array, the replaceable protocol adapter slot and the dual-channel redundant power supply path, not only facilitates the hot plug of functional modules, but also improves the stability and reliability of the system, ensuring continuous power supply and normal operation of the device during on-site investigation.

[0020] In addition, each functional module can independently perform full-function operations and is electrically independent of each other, enabling hot replacement of failed modules without affecting the overall operation of the system, which greatly improves the fault tolerance and availability of the system, reduces the interruption of investigation due to device failure, and provides solid technical support for criminal investigation on-site investigation, promoting the development of criminal investigation on-site investigation towards intelligence and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to facilitate understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.

[0022] Figure 1 The structure block diagram of a multi-dimensional intelligent investigation integrated system based on criminal investigation on-site investigation according to the present application; Figure 2 The schematic diagram of the key interface technology in the present application. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined object, the specific embodiments, structures, features and effects of the present application will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0024] Please refer to Figures 1-2 A multi-dimensional intelligent investigation integrated system based on criminal investigation on-site investigation, comprising: An integrated docking module and a detachable functional module in communication connection with the integrated docking module via a reconfigurable hardware interface unit; the detachable functional module comprises an ultra-wide spectrum intelligent investigation module, a detached cell search and display module, a visual laser targeting module and an on-site light distribution evidence collection module; The integrated docking module comprises: A universal backplane interface unit for providing standardized electrical connection and mechanical locking structure; A multi-protocol communication control unit is configured to support Ethernet, CAN bus and custom serial protocol; An embedded drive controller is configured to internally store drive firmware matched with each functional module; Each functional module is connected to the universal backplane interface unit through the modular physical interface group in a hot-pluggable manner, and data interaction is established with the multi-protocol communication control unit via the protocol adaptive conversion module, and the embedded drive controller performs function scheduling.

[0025] In this embodiment, the ultra-wide spectrum intelligent investigation module is configured to perform non-contact scanning imaging by using an ultra-wide spectrum band covering ultraviolet to infrared, and to identify, enhance and record the characteristic response of different substances under a specific wave band; The exfoliated cell search and display module is configured to perform directional enrichment and visual extraction on the surface of the target object, and integrates a double magnification optical zoom system and a lateral illumination light source. The visual laser targeting module is configured to emit a visible or near-infrared wave band laser beam, accurately position the evidence location through a controllable divergence angle, and selectively perform spectral excitation enhancement on specific traces. The on-site light distribution evidence collection module is configured to provide a multi-angle, multi-color temperature, adjustable polarization and intensity controllable illumination light source, intelligently configure the optimal illumination scheme according to the characteristics of the evidence and the evidence collection requirements, and optimize the clarity and contrast of the evidence details to achieve high-quality on-site optical recording. The integrated docking module includes independent physical interfaces and / or communication protocols for separately and detachably connecting and driving each of the ultra-wide spectrum intelligent investigation module, the exfoliated cell search and display module, the visual laser targeting module and the on-site light distribution evidence collection module to realize their respective functions.

[0026] Specifically, the reconfigurable hardware interface unit includes: The modular physical interface group is integrated at the bottom of each functional module and includes power contacts, data pin arrays and mechanical guide grooves. The protocol adaptive conversion module is used to identify and convert the communication protocols of different functional modules in real time.

[0027] Specifically, the ultra-wide spectrum intelligent investigation module is configured to use an ultraviolet-visible-infrared wide spectrum imaging sensor and a multi-spectral analysis processor to extract and enhance the material characteristic response of the target area.

[0028] Specifically, the exfoliated cell search and display module is configured to use a negative pressure adsorption head combined with a fluorescent labeling imaging assembly to realize the positioning enrichment and development of trace biological traces.

[0029] Specifically, the visual laser targeting module is configured to carry a wavelength-tunable laser source and a digital holographic positioner, for generating a visible laser mark and exciting specific trace fluorescence.

[0030] Specifically, the on-site light distribution forensics module is configured to integrate a multi-axis LED array, a polarization filter wheel, and a color temperature adjuster, for outputting parameter-programmable evidence-enhanced lighting.

[0031] Specifically, the multi-protocol communication control unit is configured to: establish a dual-channel communication link, wherein the main channel transmits real-time image data using a gigabit Ethernet protocol, and the backup channel transmits device control instructions using an RS-485 bus; when the signal strength of the main channel is lower than a preset threshold, automatically enable a data packet retransmission mechanism; if continuous retransmission fails, switch to the backup channel to maintain basic communication.

[0032] Further, the modular physical interface group further includes: magnetic power contact and foolproof data pin array, for assisting positioning and preventing reverse plugging through magnetic attraction; replaceable protocol adapter card slot, for compatibility with RS-485 communication protocol and optical fiber communication expansion protocol, to switch communication protocols through plug-in hardware cards; dual-channel redundant power supply path, automatically switches to the backup path when the main power contact is abnormal, ensuring continuous power supply when the functional module is hot-swapped.

[0033] Preferably, the digital holographic positioner is configured to: FPGA-based dynamic light path calibration unit, real-time compensation for laser beam offset caused by mechanical vibration, adjustment of divergence angle accuracy through feedback sensors; Multi-band fluorescence excitation database, stores the optimal excitation wavelength combination of specific traces, and automatically matches the spectral parameters of the wavelength-tunable laser source; laser energy closed-loop control system, self-adaptive adjustment of output power according to evidence distance.

[0034] Specifically, each of the super-wide spectrum intelligent investigation module, the exfoliated cell search and display module, the visual laser targeting module, and the on-site light distribution forensics module is configured to: When accessing the integrated docking module alone, load the exclusive drive firmware through the embedded drive controller to independently perform full-function operations without the need for other module cooperation; Through the physical isolation design of the reconfigurable hardware interface unit, the power loop, data bus, and control signal of any functional module are independent of each other at the electrical level, enabling hot replacement of faulty modules without affecting the overall operation of the system.

[0035] In this embodiment, the integrated docking module provides physical connection, protocol conversion, and device scheduling core functions; the application scenarios of the ultra-wide spectrum intelligent investigation module are non-contact scanning of bloodstains, fine stains, and other biological traces, and the characteristic spectrum is enhanced for imaging; the falling cell search and display module is used to extract dander cells on door handles and tool surfaces, automatically fluorescently labeled, and micro-imaged; the visual laser targeting module accurately locates the dust footprints on the wall surface, and excites the fluorescence signal of the latent blood handprint; and the on-site light distribution evidence collection module eliminates the reflection of the metal surface and enhances the stereoscopic contrast of the shell scratch marks.

[0036] Key interface technologies such as Figure 2 are shown. Taking bloodstain investigation as an example: Step 1: Access the visual laser targeting module. The magnetic interface automatically adsorbs and positions, and the protocol adaptive module identifies and loads the CAN bus driver Select the “latent blood excitation” mode through the tablet terminal, and the laser source automatically outputs a combined wavelength of 415 nm+650 nm; the digital holographic positioner projects a ring-shaped identification light spot to mark the suspected bloodstain area.

[0037] Step 2: Switch the ultra-wide spectrum intelligent investigation module. Replace the laser module through hot swapping, and the backplane interface triggers a driver reload; Start scanning in the infrared waveband (950 nm) to identify the characteristic absorption peak of hemoglobin; The multispectral processor generates a pseudo-color enhanced image to mark the bloodstain penetration depth.

[0038] Step 3: Link the on-site light distribution evidence collection module. The system automatically sends instructions: turn on 30° lateral illumination + cross polarization + 5500K color temperature; the LED array suppresses background reflection and highlights the bloodstain splash pattern; and transmit 4K images to the background database for archiving; The above is only a preferred embodiment of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present application, and any equivalent embodiments with equivalent changes are equivalent. Any simple modification, equivalent change, and modification of the above embodiments based on the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A multi-dimensional intelligent investigation integrated system based on criminal investigation scene investigation, characterized in that, The application relates to a modularized integrated forensics system. The integrated docking module and the detachable functional module connected therewith via a reconfigurable hardware interface unit; The detachable functional module comprises an ultrabroadband spectrum intelligent detection module, a desquamate search and display module, a visual laser targeting module and an on-site light distribution evidence collection module; The integrated docking module comprises: A general backplane interface unit for providing standardized electrical connection and mechanical locking structure; A multi-protocol communication control unit for supporting Ethernet, CAN bus and self-defined serial protocol; An embedded drive controller for built-in drive firmware matched with each functional module; Wherein, each functional module is connected with the general backplane interface unit through a modularized physical interface group and establishes data interaction with the multi-protocol communication control unit via a protocol adaptive conversion module, and the embedded drive controller performs function scheduling.

2. The system of claim 1, wherein, The reconfigurable hardware interface unit comprises: A modularized physical interface group integrated at the bottom of each functional module, including power contact, data pin array and mechanical guide slot; A protocol adaptive conversion module for real-time identification and conversion of communication protocols of different functional modules.

3. The system of claim 1, wherein, The ultrabroadband spectrum intelligent detection module is configured to extract and enhance the material characteristic response of a target area through an ultraviolet-visible-infrared wide-spectrum imaging sensor and a multi-spectrum analysis processor.

4. The system of claim 1, wherein, The desquamate search and display module is configured to realize positioning enrichment and development of trace biological marks through a negative pressure adsorption head combined with a fluorescent labeling imaging assembly.

5. The system of claim 1, wherein, The visual laser targeting module is configured to carry a wavelength adjustable laser source and a digital holographic positioner, for generating visible laser marks and exciting specific trace fluorescence.

6. The system of claim 1, wherein, The on-site light distribution evidence collection module is configured to integrate a multi-axis LED array, a polarization filter wheel and a color temperature regulator, for outputting parameter programmable evidence enhancement illumination.

7. The system of claim 1, wherein, The multi-protocol communication control unit is configured to: Establish a dual-channel communication link, wherein the main channel adopts a gigabit Ethernet protocol to transmit real-time image data, and the standby channel adopts an RS-485 bus to transmit equipment control instructions; When the signal strength of the main channel is lower than a preset threshold, a data packet retransmission mechanism is automatically enabled; if continuous retransmission fails, the standby channel is switched to maintain basic communication.

8. The system of claim 2, wherein, The modularized physical interface group further comprises: Magnetic power contact and foolproof data pin array for assisting positioning and preventing reverse plugging through magnetic attraction; Replaceable protocol adapter card slot for compatible RS-485 communication protocol and optical fiber communication expansion protocol, and switching communication protocol through plug-in hardware card; Dual-channel redundant power supply path, which automatically switches to the standby path when the main power contact is abnormal, to ensure continuous power supply when the functional module is hot plugged.

9. The system of claim 5, wherein, The digital holographic positioner is configured to: A dynamic light path calibration unit based on FPGA, which compensates for laser beam deviation caused by mechanical vibration in real time, adjusts the divergence angle accuracy through a feedback sensor; A multi-band fluorescence excitation database stores the optimal excitation wavelength combination of specific traces, and automatically matches the spectral parameters of the wavelength adjustable laser source; A laser energy closed-loop control system adaptively adjusts the output power according to the distance of the evidence.

10. The system of claim 1, wherein, Each of the super-wide spectrum intelligence detection module, the exfoliated cell search and display module, the visual laser targeting module and the on-site light distribution evidence collection module is configured to: When accessing the integrated docking module alone, the embedded drive controller loads a dedicated drive firmware, independently performs full-function operations and does not require cooperation with other modules; Through the physical isolation design of the reconfigurable hardware interface unit, the power loop, data bus and control signal of any functional module are independent of each other at the electrical level, and the hot replacement of the faulty module is realized without affecting the overall operation of the system.

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