双光谱无感多人通过式测温系统刑侦与司法鉴定应用介绍
作者：毕思特科技 来源：毕思特科技 浏览数：12 发布时间：2026/3/17 13:43:17
双光谱无感多人通过式测温系统刑侦与司法鉴定应用介绍
双光谱无感多人通过式测温系统，是集成高精度红外热成像与高清可见光成像技术的智能安全监测核心装备，也是刑事技术领域辅助现场勘查、痕迹观测与过程记录的专用辅助设备。系统专为公共安全防控、大型活动安保、重要场所出入口管控设计，可在人员自然通行状态下，实现中远距离、非接触、多目标同步的实时体温筛查与异常预警，同时凭借双光谱热成像的技术特性，为刑事现场勘查、物证鉴定提供超越可见光的观测维度，是公共安全智能化防控与刑事技术辅助勘查体系中的重要装备。
系统基于红外热辐射探测与多光谱图像融合核心技术，通过高灵敏度热敏感传感器捕捉物体红外辐射信号，经专有算法与辐射模型精准转换为温度数据，经黑体校准后测温误差可控制在 0.2℃以内，有效测温距离覆盖 1-10 米。系统同步捕获高清可见光影像，通过图像配准与叠加技术，将温度数据精准映射到可见光视频流中，形成直观的双光谱融合画面；内置 AI 算法可实现环境温度、测量距离的实时智能补偿，支持画面内多目标同步测温，具备异常体温声光报警、自动抓拍存档、历史温度回溯功能，支持 ONVIF、GB28181 等主流安防协议，可无缝接入现有安防平台实现多系统联动，7×24 小时不间断稳定运行，解决了传统测温设备接触式感染风险高、单人检测效率低、多目标同步监测能力弱、画面与温度数据溯源脱节的行业痛点。
在公共安全、刑事侦查与司法鉴定实战中，系统核心应用覆盖两大维度、六大场景：一是公共安全常态化防控核心应用，包括交通枢纽、医疗机构、商超园区等人员密集场所的群体性无感体温筛查，快速识别体温异常人员并预警，筑牢公共卫生安全防线；重要党政机关、涉密场所、涉外场馆的出入口智能管控，实现人员通行与体温监测一体化管理；重大国际赛事、国家级会议等大型活动安保，完成大规模人员快速无感测温与异常情况快速处置，保障活动安全有序开展。二是刑事技术与司法鉴定辅助应用，包括犯罪现场痕迹辅助观测，通过探测物体表面细微温差区域，为寻找近期接触痕迹、化学残留物、电气故障过热点提供线索；复杂环境物证发现与记录，在黑暗、烟雾、强光遮蔽等可见光观测受限的场景下，利用热成像扩展观测维度，辅助搜索定位涉案物证、隐匿人员；司法鉴定过程记录与重建，对物证理化实验、痕迹显现过程进行长时间连续温度监测与记录，为司法鉴定提供可追溯的连续温度变化数据；案件事后回溯与线索挖掘，通过系统存储的双光谱录像与温度数据，回溯案件相关时段人员通行轨迹、异常行为与体温特征，为案件侦查提供辅助线索。
实战应用案例：1. 某国家级大型国际会议安保工作中，在主会场、分会场、媒体中心等核心区域出入口部署多套本系统，实现参会人员无感快速通行与同步体温筛查，会议期间累计完成数十万人次的体温监测，快速识别并规范处置多起体温异常情况，全程无拥堵、无漏检，为会议安全顺利举办提供了坚实的技术保障；2. 某厂房起火案现场勘查中，现场浓烟残留、光线昏暗，可见光勘查难以精准定位起火点，技术人员使用本系统的双光谱热成像功能，探测到配电箱区域的细微温差过热点，结合现场痕迹锁定电气故障起火原因，同时在黑暗环境中快速搜索到涉案关键物证，为案件定性与事故责任认定提供了核心依据。
本系统将高精度无感测温与智能视频监控深度融合，既实现了公共安全领域大规模人员体温筛查的智能化、高效化升级，同时凭借双光谱热成像的技术特性，为刑事现场勘查、物证鉴定提供了超越可见光的全新观测维度，是公共安全防控与刑事技术辅助体系中兼具实用性与扩展性的重要装备。
Application Introduction of the Dual-Spectrum Non-Perceptual Multi-Person Walk-Through Temperature Measurement System in Criminal Investigation and Forensic Identification
The Dual-Spectrum Non-Perceptual Multi-Person Walk-Through Temperature Measurement System is core intelligent safety monitoring equipment integrating high-precision infrared thermal imaging and high-definition visible light imaging technology, as well as special auxiliary equipment for on-site investigation, trace observation and process recording in the field of criminal technology. Specially developed for public safety prevention and control, large-scale event security, and entrance and exit control of important premises, the system can realize real-time body temperature screening and abnormal warning with medium and long-distance, non-contact, multi-target simultaneous monitoring when personnel pass through naturally. At the same time, relying on the technical characteristics of dual-spectrum thermal imaging, it provides an observation dimension beyond visible light for criminal scene investigation and forensic identification, making it an important equipment in the system of intelligent public safety prevention and control and auxiliary criminal technology investigation.
Based on the core technologies of infrared thermal radiation detection and multi-spectral image fusion, the system captures the infrared radiation signal of objects through a high-sensitivity thermal sensor, and accurately converts it into temperature data through a proprietary algorithm and radiation model. The temperature measurement error can be controlled within 0.2℃ after black body calibration, with an effective temperature measurement distance covering 1 to 10 meters. The system simultaneously captures high-definition visible light images, and accurately maps temperature data to the visible light video stream through image registration and overlay technology, forming an intuitive dual-spectrum fused image. The built-in AI algorithm can realize real-time intelligent compensation of ambient temperature and measurement distance, support simultaneous temperature measurement of multiple targets in the frame, and is equipped with sound and light alarm for abnormal body temperature, automatic capture and archiving, and historical temperature traceability functions. It supports mainstream security protocols such as ONVIF and GB28181, can be seamlessly connected to existing security platforms to realize multi-system linkage, and runs stably 7×24 hours without interruption. It addresses the industry pain points of traditional temperature measurement equipment, such as high risk of contact infection, low single-person detection efficiency, weak multi-target simultaneous monitoring capability, and disconnection between image and temperature data traceability.
In the practical operation of public safety, criminal investigation and forensic identification, the core applications of the system cover two dimensions and six scenarios:
1. Core application of normalized public safety prevention and control: including group non-perceptual body temperature screening in densely populated places such as transportation hubs, medical institutions, supermarkets and parks, to quickly identify personnel with abnormal body temperature and issue warnings, and build a solid public health safety defense line; intelligent entrance and exit control of important party and government organs, confidential premises, and foreign-related venues, to realize integrated management of personnel passage and body temperature monitoring; security of large-scale events such as major international sports events and national conferences, to complete rapid non-perceptual temperature measurement of large-scale personnel and rapid disposal of abnormal conditions, and ensure the safe and orderly conduct of events.
2. Auxiliary application of criminal technology and forensic identification: including auxiliary observation of traces at crime scenes, to provide clues for finding recent contact traces, chemical residues, and overheating points of electrical faults by detecting micro temperature difference areas on the surface of objects; discovery and recording of physical evidence in complex environments, to expand the observation dimension by thermal imaging in scenes with limited visible light observation such as darkness, smoke, and strong light shielding, and assist in searching and locating case-related physical evidence and hidden personnel; process recording and reconstruction of forensic identification, to carry out long-term continuous temperature monitoring and recording of the physical and chemical experiments of physical evidence and the process of trace development, and provide traceable continuous temperature change data for forensic identification; post-case traceability and clue mining, to trace the personnel passage track, abnormal behavior and body temperature characteristics in the relevant period of the case through the dual-spectrum video and temperature data stored by the system, and provide auxiliary clues for case investigation.
Practical Forensic Application Cases:
1. In the security work of a national large-scale international conference, multiple sets of this system were deployed at the entrances and exits of core areas such as the main venue, branch venues and media center, to realize non-perceptual rapid passage of participants and simultaneous body temperature screening. During the conference, it completed the temperature monitoring of hundreds of thousands of person-times, quickly identified and standardized the disposal of multiple abnormal body temperature cases, with no congestion or missed detection throughout the process, providing a solid technical guarantee for the safe and smooth holding of the conference.
2. In the on-site investigation of a factory fire case, the scene had residual thick smoke and dim light, making it difficult to accurately locate the ignition point through visible light investigation. Technicians used the dual-spectrum thermal imaging function of this system to detect the micro temperature difference overheating point in the distribution box area, locked the cause of the fire caused by electrical failure combined with on-site traces, and quickly searched for key physical evidence involved in the case in the dark environment, providing a core basis for the case characterization and accident liability identification.
This system deeply integrates high-precision non-perceptual temperature measurement with intelligent video monitoring. It not only realizes the intelligent and efficient upgrading of large-scale personnel body temperature screening in the field of public safety, but also provides a new observation dimension beyond visible light for criminal scene investigation and forensic identification by virtue of the technical characteristics of dual-spectrum thermal imaging. It is an important equipment with both practicability and scalability in the public safety prevention and control and criminal technology auxiliary system.