Modularized criminal investigation evidence obtaining instrument

Abstract

The utility model discloses a modularized criminal investigation evidence obtaining instrument, which comprises a main body, a lens, a modularized slide rail buckle assembly, a multi-channel control mainboard, a preview display screen and a power supply module, the lens and the main body are mounted and dismounted through the modular slide rail buckle assembly; the multi-channel control mainboard and the power supply module are both installed in the main body, the multi-channel control mainboard is used for evidence information storage and function control, and the power supply module is used for power supply of the evidence obtaining instrument; the preview display screen is mounted at the rear end of the main body; information transmission between the lens and the multi-channel control mainboard is realized through the modularized slide rail buckle assembly. Compared with the prior art, through the design of the modularized sliding rail buckle assembly, rapid disassembly and assembly of various evidence obtaining instrument lenses can be achieved, connection between different contacts and clamping grooves is designed, different lenses are adapted, and data storage and transmission are achieved; and the evidence obtaining work efficiency is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of criminal investigation and evidence collection, in particular to a modular criminal investigation and evidence collection instrument. Background Art

[0002] Criminal investigation and evidence collection are the basis for case detection and court trials. Simplifying the criminal investigation and evidence collection process and improving the efficiency of evidence collection are of great significance to helping case detection and building a more efficient and fair new legal society.

[0003] In current evidence collection, investigative technicians immediately secure the scene and collect various physical evidence. This process requires the use of numerous tools, such as evidence plaques and rulers, to initially identify evidence points. Furthermore, visible evidence, such as fingerprints, footprints, and bloodstains, requires chemical dust imaging, which results in a large number of images. Traditional evidence collection equipment is complex and each is designed to capture only one type of evidence. This leads to extensive preparation, time-consuming dispatches, slow response times, and high labor costs, hindering efficient evidence collection and the rapid resolution of cases. Utility Model Content

[0004] The purpose of the utility model is to provide a modular criminal investigation evidence collection instrument. Through the modular slide rail buckle component design of the connection structure between the lens and the evidence collection instrument body, a variety of evidence collection instrument lenses can be quickly disassembled and assembled. Different connections between contacts and card slots are designed to adapt to different lenses and realize data storage and transmission; thus, the efficiency of evidence collection work is higher.

[0005] The technical solution for achieving the purpose of the utility model is: a modular criminal investigation evidence collection instrument, including a main body, a lens, a modular slide rail buckle assembly, a multi-channel control mainboard, a preview display screen, and a power module; the lens and the main body are installed and disassembled through the modular slide rail buckle assembly; the multi-channel control mainboard and the power module are both installed inside the main body, the multi-channel control mainboard is used for storing evidence information and function control, and the power module is used for powering the evidence collection instrument; the preview display screen is installed at the rear end of the main body; the lens and the multi-channel control mainboard realize information transmission through the modular slide rail buckle assembly.

[0006] Compared with the prior art, the present invention has the following significant advantages:

[0007] (1) By sorting out the characteristics of different criminal investigation and evidence collection lenses, a modular slide rail buckle assembly was redesigned to achieve the unified installation of multiple lenses. Therefore, when collecting evidence information, only one subject needs to be carried, and the lens can be replaced according to different shooting needs to collect evidence information; it is convenient to carry and use, and improves efficiency.

[0008] (2) All the different types of evidence recorded by different lenses are stored on a multi-channel control motherboard, which is convenient for subsequent uploading to the platform for processing and improving work efficiency.

[0009] (3) Through the design of the preview display screen, a preliminary preview of the photographed evidence information can be made. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the main structure of the evidence collection device of the utility model;

[0011] Figure 2 Schematic diagram of lens structure suitable for evidence collection;

[0012] Figure 3 Detailed view of the modular slide rail clip assembly for the forensic instrument;

[0013] Figure 4 This is a schematic diagram of the specific operation of connecting each lens to the slide rail buckle;

[0014] Figure 5 This is a schematic diagram of the human-machine grip of the modular forensic instrument;

[0015] Figure 6 This is a detailed view of the modular forensic instrument's operating panel;

[0016] Figure 7 It is the charging interface and wired data transmission interface.

[0017] Figure numerals: 1—main body, 2—card, 3—fastener, 4—preview display screen, 5—USB interface, 6—switch button, 7—mode switching slider, 8—multi-channel control motherboard, 9—ergonomic grip, 10—mounting ring, 11—contact, 12—signal transmission card slot, 13—multi-channel contact. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1 As shown, the present invention provides a design solution: a modular evidence collection instrument for criminal investigation and evidence collection, comprising a main body 1, various lenses, a grip assembly, a modular slide rail snap assembly, a multi-channel control mainboard 8, a preview display screen 4, and a power module. The grip assembly is fixedly mounted on the main body 1, and the various lenses are connected to the main body via the modular slide rail snap assembly connected at the rear end to achieve positional connection and information transmission. The main body 1 is provided with a USB port 5, which provides power supply and information transmission functions. The main body 1 is internally provided with a multi-channel control mainboard 8, the rear end of the main body 1 is an operation window, and the main body 1 is embedded with a display screen 4 for providing a preliminary preview of the captured information.

[0020] The grip assembly includes an ergonomic grip 9 and a grip base; the grip base is fixed to the top of the main body 1, and the grip base and the ergonomic grip 9 are connected by a damping shaft. By increasing the friction force to slow down the speed and amplitude of the rotational motion, the ergonomic grip 2 can achieve a more stable and controllable rotation effect.

[0021] During the specific evidence collection operation, the operator should first check the use of the grip 9 after installing the lens to avoid any breakage or mechanical damage that may damage the main body and evidence. After checking to ensure that it is in normal use, the operator should adjust the grip 9 to the appropriate angle according to the location where evidence is to be collected, and then interact with the rear buttons with one hand while holding it to complete the evidence collection process.

[0022] After the evidence collection process is completed, care should be taken to restore the handle 9 on the upper part of the main body 1 to its original position to avoid long-term stress that may reduce the service life of the handle or cause damage due to bumps.

[0023] The lens includes an ultra-wide spectrum camera lens and an infrared camera lens. The lens is structurally connected to the main body 1 through a modular slide rail buckle assembly, and the internal signal is conducted through the contacts and interfaces at the connection of the buckle assembly.

[0024] Specifically, the modular slide rail fastener assembly includes a clamp 2, a fastener 3, and a mounting ring 10. The slide rail clamp 2 is welded to the center of the front window of the main body 1, and the mounting ring 10 is fixed to the fastener 3. Various lenses are screwed into the mounting ring 10. The clamp 2 and fastener 3 are connected by a slide rail slot to achieve an up-and-down sliding connection, thereby achieving the structural installation of the lens to the main body 1.

[0025] A multi-channel contact 13 is set on the mounting ring 10 on the plate facing the fastener 3 to transmit the evidence information captured by the front-end lenses. The multi-channel contact 13 is connected to the two contacts at the lower end of the fastener 3; after the lens is installed, the signal is output to the multi-channel control main board 8 inside the main body 1 through each contact and the signal transmission card slot 12.

[0026] The bottom of the fastener 3 is provided with different contacts 11 adapted to different lenses for signal transmission, and the bottom of the card 2 slot is provided with a signal transmission card slot 12 that cooperates with different contacts;

[0027] Specifically, first contact 11-1, located on the left side of the bottom of fastener 3, is a USB-type contact. It mates with first signal slot 12-1 on the bottom of fastener 2 to transmit digital color image data captured by the spectral camera. Second contact 11-2, located on the right side of the bottom of fastener 3, is a Camera Link-type contact. It mates with second signal slot 12-2 to transmit video streams captured by the infrared camera.

[0028] Multi-channel control motherboard 8 is screwed into main body 1 and connected to signal transmission slot 12 and preview display 4. An information storage and transmission module is housed within multi-channel control motherboard 8, which is used to store and manage various evidence collected by the system. Main body 1 is equipped with a USB port 5, which connects to multi-channel control motherboard 8. An external host accesses the information stored within multi-channel control motherboard 8 through USB port 5. Data is processed and analyzed by the external host, allowing operators to verify, compare, and annotate case evidence on the national crime big data platform. Operators can also enter case evidence into relevant big data platforms or share data with other local police stations.

[0029] The information storage and transmission module is simultaneously connected to the preview display screen 4 , and displays the various photographed evidence information on the preview display screen 4 , thereby realizing a preliminary preview of the evidence information.

[0030] A switch button 6 and a mode switching slider 7 are provided on one side of the preview display screen 4 .

[0031] A power module is provided inside the main body 1, and the USB interface 5 provided on the main body 1 also serves as a power supply function; the power module is connected to the USB interface 5 and the multi-channel diabolo control mainboard 8, and is used to supply power to the multi-channel control mainboard 8 and the preview display screen 4.

[0032] The modular criminal investigation evidence collection device disclosed in this utility model operates as follows: To switch between the functions of the aforementioned modules, the front-end lenses must first be switched. To accommodate the different information streams, the back-end multi-channel control motherboard also rapidly switches the receiving channels. For example, to switch from the ultra-wide-spectrum recording module to the infrared recording module, simply remove the original lens mounted on the front end, remove the required hardware, and install it. The main unit then automatically identifies the front-end lens, switches the data channel and storage format, and enters the infrared recording mode.

[0033] In detail, when disconnecting the original lens, you need to first push the switch mode slider 7 to the corresponding mode from the rear operation window, then remove the fastener 3 from the card, and then firmly insert the required lens downward from the slide rail through the rear fastener 3.

[0034] In the existing technology, operators should export and save the three-dimensional data of the on-site evidence images after the evidence collection operation is completed on the same day. If the case is urgent or the case is handled in a different place and it is really impossible to upload the evidence in time, the evidence in the modular evidence collection device can be uploaded without returning to the unit. Specifically:

[0035] Upon returning to the unit, the modular evidence collection device is connected to the unit's intelligent terminal via USB port 5. The user can then select the evidence to be processed or uploaded using the prompts on the terminal platform. If returning to the unit is not possible, the device uses the rear preview display 4, the internal network switch, and the wireless signal module to transmit the required data back to the agency via the internal police network. During this time, the device must be fully charged to prevent data loss.

[0036] The above description is only a preferred specific implementation method of the present application and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A modular criminal investigation evidence collection instrument, characterized in that: It includes a main body, a lens, a modular slide rail buckle assembly, a multi-channel control mainboard, a preview display screen, and a power module; the lens and the main body are installed and disassembled through the modular slide rail buckle assembly; the multi-channel control mainboard and the power module are both installed inside the main body, the multi-channel control mainboard is used for storage and function control of evidence information, and the power module is used for powering the evidence collector; the preview display screen is installed at the rear end of the main body; the lens and the multi-channel control mainboard realize information transmission through the modular slide rail buckle assembly.

2. The modular criminal investigation evidence collection device according to claim 1, characterized in that: The modular slide rail clip assembly comprises a clip (2), a fastener (3) and a mounting ring (10); the front end of the main body (1) is fixed with the slide rail clip (2), and the mounting ring (10) is fixed on the fastener (3); the lens is mounted inside the mounting ring (10) by screwing; the clip (2) and the fastener (3) are slidably mounted between them, thereby realizing the mounting of the lens on the main body (1) structure.

3. The modular criminal investigation evidence collection device according to claim 2, characterized in that: A multi-channel contact (13) is provided on the mounting ring (10) for transmitting evidence information captured by each lens at the front end; a contact (11) is provided at the bottom of the fastener (3); a signal transmission card slot (12) is provided at the bottom of the card slot (2); the multi-channel contact (13) is connected to the contact (11); the signal transmission card slot (12) is connected to the multi-channel control main board (8); after the lens is installed, the signal is output to the multi-channel control main board (8) inside the main body (1) through the contact and the signal transmission card slot.

4. The modular criminal investigation evidence collection device according to claim 1, characterized in that: The main body (1) is provided with a USB interface (5), which is connected to the multi-channel control mainboard (8). An external host reads information inside the multi-channel control mainboard (8) through the USB interface (5).

5. The modular criminal investigation evidence collection device according to claim 1, characterized in that: An information storage and transmission module is provided inside the multi-channel control mainboard (8), and the information storage and transmission module is used to store and manage various evidence information collected by the system.

6. The modular criminal investigation evidence collection device according to claim 1, characterized in that: A switch button (6) and a mode switching slide button (7) are arranged on one side of the preview display screen (4).

7. The modular criminal investigation evidence collection device according to claim 4, characterized in that: The USB interface (5) also has a power supply function; the power module is connected to the USB interface (5) for charging the power module.

8. The modular criminal investigation evidence collection device according to claim 1, characterized in that: The modular criminal investigation evidence collection instrument also includes a grip assembly, which is fixedly mounted on the upper portion of the main body for facilitating use and carrying of the modular criminal investigation evidence collection instrument.

9. The modular criminal investigation evidence collection device according to claim 8, characterized in that: The grip assembly comprises an ergonomic grip (9) and a grip base; the grip base is fixed to the top of the main body (1), and the grip base and the ergonomic grip (9) are connected by a damping shaft.

10. The modular criminal investigation evidence collection device according to claim 3, characterized in that: The first contact (11-1) provided at the bottom of the fastener (3) is a USB type contact, which is paired with the first signal card slot (12-1) interface provided at the bottom of the card (2) and is used to transmit digital color image data captured by the spectral camera lens; the second contact (11-2) provided at the bottom of the fastener (3) is a Camera Link type contact, which is paired with the second signal card slot (12-2) interface provided at the bottom of the card (2) and is used to transmit the video stream captured by the infrared camera lens.

Images