150升智能光照培养箱——微电脑恒温控制·全光谱可调光照·生物物证发育观察与死亡时间推断环境模拟系统（法医实验室昆虫学检验/刑事科学技术研究装备）

 

150升智能光照培养箱——微电脑恒温控制·全光谱可调光照·生物物证发育观察与死亡时间推断环境模拟系统（法医实验室昆虫学检验/刑事科学技术研究装备）

〖重要合规前置声明〗 本产品为刑事科学技术研究与法医物证检验专用装备，仅面向具备法定鉴定资质与刑事技术研究许可的各级公安机关刑事技术部门、人民检察院技术部门、司法鉴定机构、医学院校法医学系及授权刑事科学技术实验室定向供应，严禁向任何个人、无资质企业及非授权单位销售或提供。本设备的购置、安装、使用与管理，必须严格遵守《中华人民共和国刑事诉讼法》《司法鉴定程序通则》《公安机关鉴定机构登记管理办法》及国家关于实验室生物安全管理、环境控制设备安全运行的相关法律法规与行业技术标准，必须由具备法医学、刑事科学技术专业背景或经法定授权的检验鉴定人员规范操作，严禁无资质单位和个人违规获取、使用本设备，严禁在非法定物证检验鉴定活动中使用本设备进行样本培养，严禁因违规操作导致生物检材污染、鉴定结论失真或实验室生物安全事故。

产品概述

150升智能光照培养箱——微电脑恒温控制·全光谱可调光照·生物物证发育观察与死亡时间推断环境模拟系统（亦称150升智能光照培养箱、法医昆虫学光照培养箱）是一款为刑事科学技术与法证科学研究设计的专用恒温与光照环境模拟装备，属于法医实验室生物物证检验、物证环境模拟与刑事科学技术研究领域的基础性环境控制装备。该产品专为在法医昆虫学死亡时间推断、土壤微生物证据富集培养、微量植物物证培育比对及环境因素对生物检材稳定性影响研究等专业任务中，对从尸体或案发现场提取的昆虫卵、幼虫、蛹及成虫进行标准化光照周期饲养与发育历期精确记录，对土壤样本中的微生物群落进行恒温定向富集，对案件涉及的植物种子、果实残片或水生藻类进行实验室可控条件培育，以及在设定温光环境中研究油漆、纤维、工具痕迹等物证的老化与形态变化规律深度定制，完美适配法医病理学死亡时间推断、生物物证溯源比对、环境证据链构建及刑事技术基础科研等专业工作场景。系统采用微电脑精密闭环控制技术，集成了温度与光照强度两大关键环境因子的智能联动调节能力，可精确复现从低温5℃到高温50℃的宽幅温度范围及最高可调光照环境，从根本上解决了传统开放式饲养受季节与天气影响大、温光条件波动导致昆虫发育数据不可靠、不同实验室检验条件难以统一等影响司法鉴定科学性的实战痛点，能够为司法鉴定工作者与研究人员提供一个高度可控、均匀稳定、可重复且符合标准化检验要求的受控环境，是开展涉及生物与环境物证的司法鉴定与科学研究的基础性法医实验室刑事科学技术装备。

技术原理

该培养箱基于微电脑闭环反馈控制与光热协同调节技术原理工作。其核心控制中枢为一台内置固化操作程序的微处理器，通过分布在工作室内关键位置的高精度温度传感器与光照强度传感器，以秒级采样频率持续实时采集箱内环境参数数据。微处理器将每一组采集数据与操作者通过LED数字面板预设的目标温度及目标光照强度进行瞬时比对计算，并依据差值分别输出调节指令。温度控制环节中，PTC陶瓷加热元件与全封闭压缩机制冷系统协同进行升温与降温操作，在立体循环送风系统的辅助下实现箱内温度的快速响应与精确稳定，控温精度达±1℃，温度波动度控制在±1℃以内。光照控制环节中，内置的多级可调LED全光谱灯组提供可模拟自然日光光谱的均匀照明，光照强度可根据实验需求进行连续设定，最大光强不低于2800LX，满足从避光培养到需光生物样本培育的多样化实验需求。

在环境均匀性保障方面，箱体内部采用优化的立体送风循环风道设计，经温湿度处理后的空气通过多点布设的风道开口在工作室内部形成均匀流动的气流组织，确保上下各层搁架之间不存在明显的温差梯度，为批量样本的平行对比实验提供了空间一致的环境条件。在结构稳定性保障方面，箱体内胆为镜面不锈钢材质，耐腐蚀且便于清洁消毒；外壳采用优质碳素钢板喷塑，坚固耐用；夹层填充高密度聚氨酯发泡隔热材料，有效隔绝外部环境温度波动对内部培养环境的影响并降低能耗。控制系统内嵌多重安全保护逻辑：断电保护电路在外部供电中断时自动记忆当前运行的全部参数，复电后无需人工干预即可按原设定程序继续运行；压缩机延时启动保护功能在断电恢复或初次上电时强制延迟压缩机的启动时间，防止制冷系统因频繁短时启停而损坏。整套系统的设计确保了在长达数周的昆虫连续饲养、微生物富集培养或材料稳定性实验中，培养条件的持续稳定与设备的高可靠性运行，满足刑事技术实验室对检验条件一致性及数据可追溯性的高标准要求。

核心功能与合规实战价值

温度与光照智能联动控制，为法医学死亡时间推断提供精确可复现的标准化培养条件
设备支持对温度与光照强度进行独立的数值设定与自动闭环调节，控温精度达±1℃，温度波动度控制在±1℃以内，光照强度支持连续可调且最大不低于2800LX。鉴定人可根据昆虫学证据检验的具体需求，在全光照模式（10℃至50℃）或无光照模式（5℃至50℃）下精确设定与尸体发现地点气象条件相匹配的培养参数，并可配合光照定时功能模拟案发地的自然光周期。例如，在夏日绿地发现的尸体，鉴定人可将箱体设定为26℃恒温，并以12小时光照/12小时黑暗的周期模拟当地日照规律，将尸体上提取的蝇类幼虫置入箱内进行标准化饲养，逐日记录其蜕皮、化蛹及羽化的精确时间节点。这一智能联动控制能力为死亡时间的昆虫学推断提供了严格的实验室受控依据——闭环比对实验数据具有完整的可重复验证性，不同鉴定机构使用相同型号设备可获得具有可比性的发育数据，从而支撑了昆虫学推断死亡时间结论在法庭质证中的科学可靠性，满足《司法鉴定程序通则》对检验方法科学性与检验结果可重复性的规范要求。

均匀稳定的150升培养环境，保障批量检材平行对比实验与大型物证模拟的空间一致性
箱体提供150升有效内容积，内胆采用不锈钢材质，洁净耐腐蚀且便于消毒灭菌，配备多层可调搁架，可同时容纳多组来自不同取样点位或不同发育阶段的昆虫饲养容器、土壤培养皿或植物培育盆，满足在多案并检或同一案件多点取样情况下的批量同步培养需求。优化的立体送风循环风道设计确保了工作室内各层搁架之间温度与气流的高度均匀性，消除了因箱内局部微环境差异导致样本发育速率不一致的系统误差，为平行对比实验的科学有效性提供了空间一致的环境保障。箱门采用中空玻璃结构与内室照明协同设计，鉴定人无需打开箱门即可对腔内全部样本进行清晰、连续的目视观察与拍照记录，既避免了开门操作造成的环境扰动，又实现了对昆虫蜕皮、化蛹、种粒萌发等关键发育节点的精确时间捕捉，为后续绘制生长发育曲线、计算积温或评估环境影响提供了不间断的准确数据基础。

高可靠性安全设计与系统保护机制，确保长周期连续培养实验的不间断稳定运行
设备外壳采用优质碳素钢板喷塑，内胆为不锈钢，夹层以聚氨酯发泡材料隔热，整体结构坚固耐用，符合实验室设备长期高负荷连续运转的可靠性要求。控制系统内嵌断电参数自动记忆与压缩机延时启动保护双重安全功能：前者在外部供电意外中断并恢复后，自动加载断电前设定的全部运行参数并继续执行原定培养程序，避免长时间实验中因电力波动导致实验条件中止或数据作废；后者在设备初次上电或断电恢复时强制延迟压缩机的启动时间，防止制冷系统因频繁短时启停而损坏核心部件。这两项保护机制使设备能够胜任需要连续运行数周的昆虫发育周期观察、微生物富集培养或材料稳定性实验，在无人值守的夜间或节假日期间保持不间断的精确温光环境控制，保障了刑事技术实验室物证检验工作的连续性与可计划性，符合司法鉴定机构资质认定中对仪器设备运行稳定性与管理规范性的考核要求。

直观操作与透明化监控，支撑检验全过程的可记录性与出庭示证的数据完整性
设备运行参数通过LED数字屏直观显示，操作者可通过简洁的面板按键完成温度、光照强度及光照周期的设定与修改，操作逻辑清晰，学习成本低。内室照明配合大面积中空玻璃门的设计，使鉴定人可在不干扰内部温光环境的前提下对样本进行全程连续观察。每一次观察记录的昆虫蜕皮时间、化蛹数量、羽化时刻等关键数据均可与设备运行日志中的温度曲线和光照周期一一对应，形成完整的检验记录链。该透明化监控与可追溯的数据管理方式，为鉴定意见书的技术附件提供了从培养条件到观察记录的完整证据支撑，在法庭质证中可逐项回应关于检验环境、操作程序及数据来源的质疑，有力提升了法医昆虫学及生物物证鉴定结论的司法公信力。

合规应用场景

法医昆虫学死亡时间（PMI）推断场景
在某凶杀案件的法医学检验中，鉴定人从死者口鼻、创口及衣物表面提取到处于不同发育阶段的蝇类幼虫与卵。为推断死亡时间，鉴定人将全部昆虫样本按形态学分类后分别置入本智能光照培养箱，依据尸体发现地的气象记录设定培养温度为25℃、光照周期为12小时光照/12小时黑暗，将样本分置于加有标准培养基的带标签培养容器中，在多层搁架上进行标准化饲养。每日通过玻璃门定时观察并记录幼虫进入各龄期的时间、停止取食并化蛹的时间以及蛹壳羽化出成虫的时间节点，依据目标蝇类的积温发育模型反向推算第一代卵的产下时间窗口。结合现场勘查信息、气象数据及昆虫种类特性，鉴定人综合推断死亡时间约在尸体被发现前70至80小时之间，该结论与监控录像显示的被害人最后活动时间高度一致。法庭质证中，鉴定人依据完整的检验记录、昆虫发育历期图表与培养箱运行温度曲线，逐项呈现了数据产生的全过程，有力支撑了起诉书中关于犯罪时间的指控。

土壤微生物关联分析与地点溯源比对场景
在一起交通肇事逃逸案件侦查中，警方从嫌疑车辆底盘提取到疑似与案发现场绿化带相关的微量泥土附着物。省厅刑事技术实验室微量物证室使用本光照培养箱对该泥土样本进行恒温条件下的微生物群落富集培养，同时将案发现场多点采集的对照泥土样本在完全相同的温度和光照条件下同步处理。经过规定培养周期后，鉴定人将富集样本制成涂片进行显微镜观察，对硅藻壳体形态、真菌菌丝与孢子类型进行系统鉴定与比对。检验结果显示嫌疑车辆底盘泥土与案发地点核心取样点的土壤样本在硅藻优势种组合、真菌主要类群构成上均高度一致，且均含有若干局部特有的微生物种类。鉴定人据此出具两样品微生物学性状高度相似、极可能来源于同一地点的鉴定意见，该结论在排除嫌疑车辆曾驶经其他相似环境区域的可能性后，成为法庭认定肇事车辆的关键物证支撑。

微量植物物证实验室培育与种类鉴定场景
某公安机关在侦办一起毒品原植物非法种植案件时，从嫌疑人住所查获若干疑似大麻种子及少量植物残片。刑事技术实验室植物物证检验组将查获的种子分为两组，一组置入本智能光照培养箱在恒温25℃、每日14小时光照条件下进行萌发培育，另一组采用传统室内盆栽方式作为对照。培养箱组种子在第四天开始集中萌发，幼苗生长整齐，叶形与茎秆特征清晰可辨；开放环境对照组则因昼夜室温波动较大，萌发时间参差不齐且部分种子发生霉腐。鉴定人在幼苗生长至第三对真叶展开时，对光照培养箱组的全部植株进行了系统的形态学观察与特征拍照，依据叶形、叶序、叶缘锯齿形状及幼茎绒毛分布等关键鉴定特征，出具了该批种子为大麻科植物的认定鉴定意见。光照培养箱提供的稳定培养条件确保了植物物证培育实验的一次成功率与鉴定结论的客观性，全部培育过程与标本照片作为鉴定技术档案的重要组成部分存档。

核心技术参数

型号规格方面，本智能光照培养箱产品型号为150C，有效内容积为150升，工作室采用不锈钢内胆、外壳采用优质碳素钢板喷塑，夹层填充聚氨酯发泡隔热材料，箱门为中空玻璃结构，支持不开启箱门的连续目视观察与拍照记录。控制系统方面，采用微电脑LED数字显示控制面板，参数设定直观便捷，具备断电参数自动记忆与压缩机延时启动保护功能。电源规格为交流220V±10%，50Hz±2%。温度控制方面，全光照模式下控温范围为10℃至50℃，无光照模式下控温范围为5℃至50℃，控温精度±1℃，温度波动度±1℃。光照控制方面，采用多级可调LED全光谱灯组，最大光照强度≥2800LX，支持连续可调设定，并可配合定时功能实现光周期模拟。设备自身工作环境要求为环境温度0℃至40℃，相对湿度≤85%。保护功能方面，具备断电保护与压缩机延时启动保护双重安全保障机制。

厂家信息：北京毕思特联合科技有限公司
网址：https://www.bestlh.com
地址：北京市亦庄开发区经海六路一号院尖子班 C9 独栋
电话：010-56526048

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150L Intelligent Light Incubator — Microcomputer Constant Temperature Control · Full-Spectrum Adjustable Illumination · Biological Evidence Development Observation & Postmortem Interval Estimation Environmental Simulation System (Forensic Laboratory Entomological Examination / Criminal Technical Scientific Research Equipment)

Global site URL：https://xilankeji.en.alibaba.com

〖Important Compliance Precaution〗 This product is a specialized equipment for criminal technical scientific research and forensic biological evidence examination, which is solely supplied to authorized entities such as criminal technical departments of public security organs at all levels, technical departments of people's procuratorates, forensic identification institutions, forensic medicine departments of medical schools, and authorized criminal technical science laboratories with statutory identification qualifications and criminal technical research permits. Any sale or supply to individuals, non-qualified enterprises and unauthorized units is strictly prohibited. The procurement, installation, use and management of this equipment must strictly comply with the Criminal Procedure Law of the People's Republic of China, the General Rules for Judicial Authentication Procedures, the Administrative Measures for the Registration of Authentication Institutions of Public Security Organs, and national laws, regulations and industrial technical standards regarding laboratory biosafety management and safe operation of environmental control equipment. Operation must be carried out exclusively by examination and identification personnel with a professional background in forensic medicine or criminal technical science, or those with statutory authorization. Unauthorized units and individuals are strictly forbidden from acquiring or using this equipment. Any use of this equipment for sample cultivation in non-statutory physical evidence examination and identification activities, or any contamination of biological evidence, distortion of identification conclusions, or laboratory biosafety incidents caused by improper operation, is strictly prohibited.

Product Overview

The 150L Intelligent Light Incubator — Microcomputer Constant Temperature Control, Full-Spectrum Adjustable Illumination, Biological Evidence Development Observation & Postmortem Interval Estimation Environmental Simulation System (also referred to as the 150L Intelligent Light Incubator or Forensic Entomological Light Incubator) is a specialized constant temperature and illumination environment simulation equipment designed for criminal technical science and forensic science research. It constitutes a foundational environmental control equipment in the fields of forensic laboratory biological evidence examination, physical evidence environmental simulation and criminal technical scientific research. This product is deeply customized for professional tasks such as forensic entomological postmortem interval estimation, soil microbial evidence enrichment cultivation, trace plant evidence cultivation and comparison, and research on the influence of environmental factors on the stability of biological evidence. These tasks include: standardized photoperiod rearing and precise developmental duration recording of insect eggs, larvae, pupae and adults collected from cadavers or crime scenes; constant temperature targeted enrichment of microbial communities in soil samples; laboratory controlled-condition cultivation of plant seeds, fruit fragments or aquatic algae involved in cases; and studying the aging and morphological change patterns of physical evidence such as paint, fibers and tool marks under set temperature and light conditions. It is perfectly adapted to professional work scenarios including forensic pathological postmortem interval estimation, biological evidence traceability comparison, environmental evidence chain construction, and foundational criminal technical scientific research. The system adopts microcomputer precision closed-loop control technology, integrating the intelligent coordinated regulation capability of two key environmental factors—temperature and light intensity. It can accurately reproduce a wide temperature range from a low of 5℃ to a high of 50℃ and a highly adjustable illumination environment. This fundamentally resolves operational pain points that affect the scientific validity of forensic identification, such as the significant influence of seasonal and weather variations on traditional open-air rearing, unreliable insect developmental data due to fluctuations in temperature and light conditions, and the difficulty in standardizing examination conditions across different laboratories. It provides forensic practitioners and researchers with a highly controllable, uniformly stable, repeatable and controlled environment that meets standardized examination requirements, serving as a foundational forensic laboratory criminal technical scientific equipment for conducting forensic identification and scientific research involving biological and environmental physical evidence.

Technical Principle

This incubator operates on the technical principles of microcomputer closed-loop feedback control and photo-thermal coordinated regulation. Its core control center is a microprocessor with built-in firmware. Through high-precision temperature sensors and light intensity sensors distributed at key positions within the working chamber, it continuously collects real-time environmental parameter data inside the chamber at a sampling frequency measured in seconds. The microprocessor performs instantaneous comparison calculations between each set of collected data and the target temperature and target light intensity preset by the operator via the LED digital panel, and outputs separate regulation commands based on the differences. In the temperature control loop, PTC ceramic heating elements and a fully enclosed compressor refrigeration system work in coordination to perform heating and cooling operations. Assisted by a three-dimensional circulating air supply system, rapid response and precise stability of the internal temperature are achieved, with a temperature control accuracy of ±1℃ and temperature fluctuation controlled within ±1℃. In the light control loop, a built-in multi-level adjustable LED full-spectrum light array provides uniform illumination that can simulate the spectrum of natural sunlight. The light intensity can be continuously set according to experimental requirements, with a maximum intensity of no less than 2800LX, meeting diverse experimental needs ranging from dark cultivation to the cultivation of light-dependent biological samples.

Regarding environmental uniformity, the interior of the chamber adopts an optimized three-dimensional circulating air duct design. Air, after being treated for temperature and humidity, forms a uniformly flowing air distribution within the working chamber through multi-point arranged duct openings, ensuring that no significant temperature gradient exists between the upper and lower shelves, thus providing spatially consistent environmental conditions for batch sample parallel comparison experiments. In terms of structural stability, the inner liner of the chamber is made of mirror-finished stainless steel, which is corrosion-resistant and easy to clean and disinfect; the outer shell is made of high-quality carbon steel plate with spray coating, which is sturdy and durable; the interlayer is filled with high-density polyurethane foam insulation material, effectively insulating against external ambient temperature fluctuations and reducing energy consumption. The control system incorporates multiple safety protection logics: a power-failure protection circuit automatically memorizes all current operating parameters upon an external power supply interruption and resumes operation according to the original programmed settings without manual intervention after power is restored; a compressor delayed-start protection function forcibly delays the compressor start-up time upon power restoration after an outage or initial power-on, preventing damage to the refrigeration system from frequent short-cycle starts and stops. The entire system is designed to ensure that during insect continuous rearing, microbial enrichment cultivation or material stability experiments lasting several weeks, the cultivation conditions remain continuously stable and the equipment operates with high reliability, meeting the high standards of criminal technical laboratories for examination condition consistency and data traceability.

Core Functions and Compliance Operational Value

Intelligent Coordinated Temperature and Light Control, Providing Precise and Reproducible Standardized Cultivation Conditions for Forensic Postmortem Interval Estimation
The device supports independent numerical setting and automatic closed-loop regulation of temperature and light intensity. Temperature control accuracy reaches ±1℃, with temperature fluctuation controlled within ±1℃. Light intensity supports continuous adjustment with a maximum of no less than 2800LX. Based on the specific requirements of entomological evidence examination, the forensic expert can precisely set cultivation parameters matching the meteorological conditions of the location where the body was found under full illumination mode (10℃ to 50℃) or no illumination mode (5℃ to 50℃). Additionally, the timing function for light can be used to simulate the natural photoperiod of the crime scene. For example, for a body found on a summer greenbelt, the expert can set the incubator to a constant temperature of 26℃ and simulate the local photoperiod with a 12-hour light / 12-hour dark cycle. Fly larvae collected from the cadaver are placed in the incubator for standardized rearing, with precise daily recordings of the timing of molting, pupation, and adult emergence. This intelligent coordinated control capability provides rigorous laboratory-controlled evidence for entomological postmortem interval estimation—closed-loop comparative experimental data possess complete repeatable verifiability, and different identification institutions using the same model of equipment can obtain comparable developmental data. This supports the scientific reliability of entomological postmortem interval estimation conclusions during court cross-examination, satisfying the normative requirements of the General Rules for Judicial Authentication Procedures regarding the scientific validity of examination methods and the repeatability of examination results.

Uniform and Stable 150L Cultivation Environment, Ensuring Spatial Consistency for Batch Evidence Parallel Comparison Experiments and Large-Scale Evidence Simulation
The chamber provides an effective internal volume of 150 liters, with a stainless steel inner liner that is clean, corrosion-resistant, and easy to disinfect and sterilize. It is equipped with multiple adjustable shelves, capable of simultaneously accommodating multiple groups of insect rearing containers, soil Petri dishes, or plant cultivation pots from different sampling points or developmental stages, meeting the needs of batch synchronous cultivation in scenarios involving multiple concurrent cases or multiple sampling points in a single case. The optimized three-dimensional circulating air duct design ensures high uniformity of temperature and airflow across all shelf levels within the working chamber, eliminating systematic errors caused by variations in sample development rates due to localized micro-environmental differences, thus providing spatially consistent environmental assurance for the scientific validity of parallel comparison experiments. The door adopts a hollow glass structure in coordinated design with internal chamber illumination. The forensic expert can conduct clear, continuous visual observation and photographic documentation of all samples in the chamber without opening the door, avoiding environmental disturbances caused by door opening while enabling precise time capture of critical developmental milestones such as insect molting, pupation, and seed germination. This provides an uninterrupted and accurate data foundation for subsequent construction of growth and development curves, calculation of accumulated degree-days, or assessment of environmental impacts.

High-Reliability Safety Design and System Protection Mechanisms, Ensuring Uninterrupted Stable Operation of Long-Duration Continuous Cultivation Experiments
The outer shell is made of high-quality carbon steel plate with spray coating, the inner liner is stainless steel, and the interlayer is insulated with polyurethane foam. The overall structure is robust and durable, meeting the reliability requirements of long-term, high-load continuous operation of laboratory equipment. The control system incorporates dual safety functions: automatic memory of parameters upon power failure and compressor delayed-start protection. The former automatically reloads all operating parameters from before the power interruption and continues executing the original cultivation program upon restoration of power after an unexpected outage, preventing the interruption of experimental conditions or data invalidation due to power fluctuations during long-duration experiments. The latter forcibly delays the compressor start-up time upon initial power-on or power restoration, preventing damage to core components of the refrigeration system from frequent short-cycle starts and stops. These two protection mechanisms enable the equipment to undertake insect developmental cycle observation, microbial enrichment cultivation, or material stability experiments requiring continuous operation for several weeks. It maintains uninterrupted precise temperature and light environment control during unattended nighttime or holiday periods, ensuring the continuity and schedulability of physical evidence examination work in criminal technical laboratories. This meets the assessment requirements for the operational stability and management standardization of instruments and equipment in forensic identification institution qualification accreditation.

Intuitive Operation and Transparent Monitoring, Supporting the Recordability of the Entire Examination Process and Data Integrity for Court Presentation
The equipment's operating parameters are intuitively displayed on an LED digital screen. The operator can complete the setting and modification of temperature, light intensity, and photoperiod through a simple control panel with clear operational logic and a low learning curve. The interior illumination, combined with the large-area hollow glass door design, allows the forensic expert to conduct full-process continuous observation of the samples without disturbing the internal temperature and light environment. Key data recorded during each observation—such as insect molting time, pupation quantity, and adult emergence moment—can be precisely correlated one-to-one with the temperature curve and light cycle in the equipment's operational log, forming a complete chain of examination records. This transparent monitoring and traceable data management approach provides comprehensive evidence support, from cultivation conditions to observational records, for the technical appendices of the expert opinion. During court cross-examination, it allows every question regarding the examination environment, operational procedures, and data sources to be addressed item by item, effectively enhancing the judicial credibility of forensic entomological and biological evidence identification conclusions.

Compliant Application Scenarios

Forensic Entomological Postmortem Interval Estimation Scenario
In the forensic examination of a homicide case, the forensic expert collected fly larvae and eggs at different developmental stages from the oral and nasal cavities, wounds, and clothing surface of the deceased. To estimate the postmortem interval, the expert morphologically classified all insect samples and placed them into this intelligent light incubator. Based on the meteorological records of the location where the body was found, the incubator was set to a cultivation temperature of 25℃ and a photoperiod of 12 hours light / 12 hours dark. The samples were placed in labeled rearing containers with standard rearing medium and subjected to standardized rearing on multiple shelves. Daily timed observations through the glass door recorded the time points at which larvae entered each instar, ceased feeding and pupated, and adult flies emerged from the pupal cases. Using the accumulated degree-day developmental model for the target fly species, the oviposition time window of the first generation of eggs was back-calculated. Based on this, combined with scene investigation information, meteorological data, and insect species characteristics, the expert comprehensively estimated the postmortem interval to be approximately 70 to 80 hours before the discovery of the body. This conclusion was highly consistent with the victim's last known activity time captured by surveillance footage. During court cross-examination, the expert fully presented the entire data generation process based on the complete examination records, insect developmental duration charts, and the incubator's operational temperature curve, strongly supporting the indictment's charge regarding the time of the crime.

Soil Microbial Association Analysis and Location Traceability Comparison Scenario
During the investigation of a hit-and-run traffic accident, the police extracted trace amounts of soil debris from the undercarriage of a suspect vehicle, suspected to be related to the greenbelt at the incident scene. The trace evidence unit of the provincial criminal technical laboratory used this light incubator to conduct constant-temperature microbial community enrichment cultivation on the soil sample. Simultaneously, multiple comparative soil samples collected from the incident scene were processed synchronously under identical temperature and light conditions. After the prescribed cultivation period, the expert prepared smears from the enriched samples for microscopic examination, conducting systematic identification and comparison of diatom frustule morphology, fungal hyphae, and spore types. The examination results showed that the soil from the suspect vehicle's undercarriage and the soil samples from the core sampling point at the incident scene were highly consistent in terms of dominant diatom species composition and major fungal group constitution. Moreover, both contained several locally endemic microbial species. Based on this, the expert issued an opinion that the two samples were highly similar in microbiological characteristics and most likely originated from the same location. After ruling out the possibility that the suspect vehicle had traversed other areas with similar environmental characteristics, this conclusion became the crucial physical evidence for the court to identify the vehicle involved in the accident.

Trace Plant Evidence Laboratory Cultivation and Species Identification Scenario
During the investigation of a case involving the illegal cultivation of drug-related plants, a public security organ seized several suspected cannabis seeds and a small amount of plant fragments from the suspect's residence. The plant evidence examination unit of the criminal technical laboratory divided the seized seeds into two groups. One group was placed in this intelligent light incubator for germination cultivation under constant temperature of 25℃ and a 14-hour daily light period; the other group was subjected to traditional indoor pot cultivation as a control. The seeds in the incubator group began to germinate collectively on the fourth day, with seedlings growing uniformly and exhibiting clearly distinguishable leaf shapes and stem characteristics. In contrast, the open-environment control group experienced significant day-night room temperature fluctuations, resulting in uneven germination times and mold decay in some seeds. When the seedlings had grown to the third pair of true leaves, the expert conducted systematic morphological observation and characteristic photography of all plants in the light incubator group. Based on key identification features such as leaf shape, phyllotaxy, leaf margin serration shape, and the distribution of trichomes on young stems, an expert opinion was issued confirming that the batch of seeds belonged to the Cannabis plant family. The stable cultivation conditions provided by the light incubator ensured the one-time success rate of the plant evidence cultivation experiment and the objectivity of the identification conclusion. The entire cultivation process and specimen photographs were archived as an integral part of the identification technical file.

Core Technical Parameters

In terms of model specifications, the model of this intelligent light incubator is 150C, with an effective internal volume of 150 liters. The working chamber features a stainless steel inner liner, and the outer shell is made of high-quality carbon steel plate with spray coating. The interlayer is filled with polyurethane foam insulation material. The door is a hollow glass structure, supporting continuous visual observation and photographic documentation without opening the door. Regarding the control system, a microcomputer LED digital display control panel is adopted, providing intuitive and convenient parameter setting. It features automatic memory of parameters upon power failure and compressor delayed-start protection functions. The power supply specification is AC 220V ±10%, 50Hz ±2%. For temperature control, under full illumination mode, the temperature control range is 10℃ to 50℃; under no illumination mode, the range is 5℃ to 50℃, with a temperature control accuracy of ±1℃ and a temperature fluctuation of ±1℃. In terms of light control, a multi-level adjustable LED full-spectrum light array is used, with a maximum light intensity of ≥2800LX, supporting continuous adjustable setting, and capable of simulating photoperiods in coordination with a timing function. The required ambient working environment for the equipment itself is an ambient temperature of 0℃ to 40℃ and a relative humidity of ≤85%. Regarding protection functions, dual safety protection mechanisms including power failure protection and compressor delayed-start protection are provided.

Manufacturer Information: Beijing Best United Technology Co., Ltd.
Website: https://www.bestlh.com
Address: Building C9, Jianziban, No.1 Courtyard, Jinghai Sixth Road, Yizhuang Development Zone, Beijing
Tel: 010-56526048