160results about How to "Easy to collect evidence" patented technology

The invention discloses a webpage data automatic evidence obtaining and storing method based on a block chain. A user sends a uniform resource locator of a webpage which needs evidence obtaining to all evidence obtaining nodes in a block chain network, and the evidence obtaining nodes carry out automatic evidence taking on the webpage; the evidence obtaining nodes generate a preservation certificate and a data compression package for the evidence obtaining data, and the data compression package is signed and then stored in a server, the hash value of the data compression packet is calculated,a timestamp is added, and the data compression packet is broadcast to a block chain network after being signed; the evidence obtaining nodes verify the timestamp of the hash value, and if the condition is met and the signature is not signed, the signature is signed and broadcast to the block chain network; a rule node receives the data signed by all the evidence obtaining nodes, and the signatureis verified, after verification is passed, the data are formed into blocks and broadcast to the block chain network; and the evidence obtaining nodes anchor the blocks to a public block chain. The method can be used for carrying out automatic evidence obtaining and evidence storage on webpage data, and the authenticity of the evidence taking data and the safety of the evidence storage data are ensured.

The invention discloses a high toss act evidence obtaining system based on a digital image processing technology. The system comprises a video monitoring device, a digital image processing center and a wired network. The video monitoring device is used for comprehensively and timely monitoring a district and obtaining image data. The wired network is used for performing image data transmission between the video monitoring device and the digital image processing center. The digital image processing center is used for analyzing the image data obtained by the video monitoring device and obtaining the movement track and a toss position of a thrown object. Real-time monitoring of the district is performed aiming at the high toss act. When the high toss act is detected, the moving object track tracing is performed, and the toss position of the thrown object is positioned, so that evidence obtainment for liability dispute about the high toss act is facilitated. The invention fully utilizes modern technologies of communication, digital image processing and the like, and combines monitoring videos of the high toss act of the district for providing an operable solution to high toss act evidence obtaining, so that the district security management is enhanced.

The invention discloses a cloud platform-based combined safety lock system and a control method thereof. The system comprises a cloud platform, a mobile terminal and an intelligent lock connected to cloud; an unlock APP is installed in the mobile terminal and used for receiving a locking password and transmitting it to the intelligent lock or for encrypting the unlocking password and modulating it into an acoustic signal transmitted to the intelligent lock, and the unlocking password is characteristic values of the face of an unlocking user or user information and password entered by the unlocking user; the intelligent lock comprises a control module and the following items connected with the control module: an electronic control module, a fingerprint acquirer, an IC (integrated circuit) card reader, a sound acquisition module, a Bluetooth module, a communication module, a storage and a judging module; the cloud platform comprises a comparison module, a safety level correcting module, a key management module and a storage module. The safety level herein may be adjusted in real time, the system is applicable to places with different safety level requirements or requiring frequent safety level adjustment, and the system enables real-time management for all intelligent locks connected to the cloud platform.

The invention discloses a detection system for backing a car into a store and a detection method thereof. According to the detection system and the detection method thereof, a main camera and an auxiliary camera are used for completely recording a whole dynamic process of backing the car into the store and obtaining the position and the distance of the car relative to a storage location marker line, quantitative analysis of the process of backing the car into the store can be realized through an image analysis meter, and analyzed results are reported to a server for storage, management, and comprehensive grading, and drivers and trainers inquire information or consult video videotapes through a client side of the rear end. Accordingly, the drivers are trained effectively, and study efficiency of driving personnel is improved.

The invention provides an advanced persistent threat trapping system and method. The system comprises an application-type honeypot, an application data capture module and an application client proxy module. According to the system provided by the invention, the application data capture module is deployed in a switch, a security data filtering product or a background audit system, suspicious data or flows are directed to the application client proxy module, and the application client proxy module sends the data to the application-type honeypot. The application-type honeypot is close to a real service system server, and can effectively confuse attackers. Long-term availability of the application-type honeypot in the system facilitates the analysis and evidence discovery of advanced persistent threats, and the application-type honeypot can share the threats of the normal service server system at the same time.

The invention discloses a traffic accident recorder, which comprises an embedded processor, a system interface module, a sensor, an internal storage, a memory controller, an external storage, an ATA bus, a PCI bus and a video recorder. The video recorder transmits video data recorded to the internal storage through the PCI bus; the internal storage is connected with the embedded processor, the ATA bus, the PCI bus through the memory controller respectively; the sensor is connected with the embedded processor through the system interface module to output environmental information collected to the embedded processor through the system interface module so as to judge unexpected accidents; when an accident happens, the corresponding video data in the internal storage is stored in the external storage by the embedded processor through the ATA bus. The invention can record the occurrence process of the accident timely and promptly when the traffic accident happens.

The invention discloses a navigation mark collision monitoring system based on various sensors. The navigation mark collision monitoring system based on the various sensors comprises a collision detection unit, a distance measuring pre-warning unit, an information processing and storing unit, a picture taking and evidence obtaining unit, an information transmitting unit and a power supply unit, wherein the collision detection unit is used for measuring and collecting attitude angle information and accelerated speed information of a navigation mark ship; the distance measuring pre-warning unit is used for measuring information of distance between other ships and the navigation mark ship and transmits the information to the information processing and storing unit through the information transmitting unit; the information processing and storing unit is used for receiving and processing the attitude angle information, the accelerated speed information, the distance measurement information and image information; the picture taking and evidence obtaining unit is used for obtaining real-time image information; the information transmitting unit is used for transmitting the information among the units and transmitting the real-time image information to a channel management department; the power supply unit is used for supplying power to the system. The navigation mark collision monitoring system based on the various sensors can timely warn ships entering dangerous distance, detect collision and reduces detection errors through a combined judgment method of a gyroscope and an acceleration sensor.

The invention discloses a community population security surveillance system and relates to the technical field of security and protection systems. The community population security surveillance system comprises a plurality of district security and protection nodes and a community central monitoring point respectively connected with the district security and protection nodes, wherein, the district security and protection nodes comprise district gate control nodes and cell gate access control systems, the cell gate access control systems and the district gate control nodes form a local area network, and each district gate control node comprises a switchboard receiving information of the access control systems, and a transceiver, an information reader-writer and a camera respectively connected with the switchboard. The system provided in the invention can monitor access situation of floating population in all the districts and discards the conventional management mode that considerable manpower and material resources are employed for extensive patrol, which enables manpower and material resources to be saved and targeted monitoring and arresting to be realized, thereby improving case handling efficiency.

The invention discloses a rapid retrograde detecting and tracking monitoring method under complex environment, and the method comprises the following steps of: extracting moving objective foreground from video frames through a inter-frame difference method, then calculating an optical flow field at each point from the strong corner set of future objectives to obtain the optical flow field set; judging whether a moving direction of the strong corner is within the set retrograde direction and its allowance: if so, recording these points, forming the retrograde point set, and giving a rapid detection warning, at the same time, precisely warning by tracking to judge whether retrograde events are occurred, obtaining the strong corner set required for being tracked, calculating the optical flow field set on each point, upon existence of the retrograde point set, finding out a tracking starting point corresponding to each point from the point set, and drawing up tracking paths; upon completion of tracking, when the amount of paths in a retrograde status is less than a decision threshold, judging rapid warning as a false alarm, otherwise, generating retrograde events. Tracking and precise warning are introduced into the method such that the accuracy rate of the retrograde detection is greatly improved.

A method for visualizing hidden fingerprint includes preparing CdTe fluorescent nanoparticles, using glass atomizer to spray nanoparticles solution onto fingerprint carrier surface carried with fingerprint, using cyanoacylate to stream surface of fingerprint carrier to form reinforced film of fingerprint and using ultraviolet ray fluorescent photograph means to obtain fluorescent fingerprint image. The visualizing system used for realizing said method is also disclosed.

The invention discloses an exposure system for a pedestrian running a red light. The exposure system for the pedestrian running the red light includes a vertical supporting rod and a horizontal supporting rod, wherein an omnibearing cloud platform is arranged on the horizontal supporting rod; a camera is mounted on the omnibearing cloud platform; a control box is arranged on the ground by the side of the vertical supporting rod; a main control computer, a stereo and a PCI video acquisition card both connected with the main control computer, and a cloud platform controller connected with the main control computer through a USB cable and a USB communication circuit module are arranged inside the control box; the cloud platform controller is connected with a traffic signal light controller in a traffic crossing; a signal output end of the camera is connected with a signal input end of the PCI video acquisition card; an exposure display screen is mounted in the upper middle part of the vertical supporting rod and is connected with a video port of the main control computer; gratings used for transmitting sounds are arranged on the control box. The exposure system for the pedestrian running the red light is convenient to operate, and can warn the pedestrian to obey the road traffic safety law in real time and provide convenience for evidence collection to a traffic law enforcing department.

The invention discloses a mobile phone with safety protection function and a safety protection method thereof. The mobile phone is provided with a hide menu in which two modes are provided, so that the mobile phone automatically starts safety protection measures when the mobile phone card is replaced or a third party mobile phone is not contacted according to preset time, namely, the mobile phonetimely and actively sends current mobile phone card information, contacts, call and short message records, base station geographic information and picture information sampled by the camera to the third party mobile phone. The safety protection method presets two strategies corresponding to two modes in the hide menu, which strengthens the safety protection function of the current mobile phone; even if the mobile phone is stolen, mobile phone software can be used for sending back contact information and special short messages in the original mobile phone to the third party mobile phone in the mode of short message or multimedia message so as to store stolen mobile phone information, which brings convenience for police to take the evidence and find the lost mobile phone.

The embodiment of the invention discloses a driver-vehicle association processing method and device. The method comprises the following steps that: the first positioning information of each mobile terminal on a road surface and the second positioning information of each intersection are obtained, inter-object distances between the mobile terminals are calculated; clustering analysis is carried outon the inter-object distances, so that a plurality of mobile terminal classes can be obtained, and driver terminals in the mobile terminal classes are determined; the driving tracks of vehicles are generated according to the second positioning information and the first positioning information of each driver terminal; and the license plate information of each vehicle shot at each intersection is acquired, and the vehicles with the license plate information are associated on the basis of the driving tracks, so that driver-vehicle association is completed. According to the method and device, evidence acquisition is facilitated through the first positioning information; the driver terminals are recognized through clustering analysis; the intelligent analysis of the behaviors of the vehicles is achieved; judgment on suspicious vehicles, black operation vehicles and the like is completed; and matching is performed on the license plate information of each vehicle shot at each intersection, the driving tracks of the vehicles are applied, and therefore, accurate matching can be achieved, and accurate driver-vehicle association is realized.

The invention provides a system for cracking and restoring iPhone encrypted backup files. The system comprises a graphical user interface (GUI) module, a password cracking module, a backup file restoring module and a keychain checking module. The GUI module is used for interactive operation between a user and a device; the password cracking module is connected with the GUI module and used for cracking encrypted files to obtain cracking passwords; the backup file restoring module receives the cracking passwords to restore encrypted backup files; and the keychain checking module receives the cracking passwords to check data stored in the keychain. According to the system for cracking and restoring encrypted backup files, the iPhone encrypted backup files are restored directly through the encrypted passwords, so that data in the iPhone are obtained, and the inside of existing mobile phone forensic systems can be integrated, and evidence obtaining and case detecting of office departments are facilitated.

The invention discloses a system for detecting urban road traffic flow by using high-definition video and microwave detection selectively. The system comprises a terminal acquisition unit and a control unit, wherein the terminal acquisition unit comprises a high-definition video acquisition module and a microwave data acquisition module; and the control unit comprises an interruption threshold value storage module, a traffic flow value comparison module, and an interruption control module. In the normal state of the system, only high-definition video acquisition module is started, so that the control unit processes and judges video information sent by the high-definition video acquisition module to acquire traffic flow data; and when the traffic flow data is abnormal, the microwave data acquisition module is automatically started. The system overcomes the disadvantages of the use of a single detector, can acquire accurate real-time data information of traffic flow in a severe environment of extremely low visibility, and lays a solid foundation for controlling and managing urban traffic by using modern technology.

The invention discloses an image frame retrieval, filtering and monitoring system based on the video identification technology, the operation of the system is monitored, and video sources are generated. The operation steps for each received frame of video monitoring frame according to the time sequence include: (1) performing background modeling for a current video monitoring frame, obtaining existed moving targets in the current video monitoring frame, detecting position data of each target, and continuing step (1) if the target is not detected; (2) identifying the detected targets, obtaining identification information of each target, printing the identification information on a warning box frame image, and saving the information in a configuration file; and (3) reading the configuration file when a monitoring video is played, and making the time satisfying the condition flash in a highlighted manner on the timeline according to a retrieval condition input by a user. According to the system, filtering and rapid retrieval of monitoring videos can be effectively realized, key target information in the videos is identified, key moments in the videos are rapidly located, and the pressure for video storage and transmission is reduced.

The invention discloses a monitoring method based on picture processing for detecting a behavior of a pedestrian climbing over a turnstile. The monitoring method comprises the following steps: acquiring a video frame at the opening of the turnstile; pre-treating the video frame through a matching method to obtain a matching rate of a turnstile gate image; extracting the sequential matching rate for a period as a classification feature to obtain matching rate sequence as an eigenvector X; judging whether an incident of the pedestrian climbing over the turnstile takes place or not through classification and discrimination function of Bayesian classification; giving an alarm to staff and recording the time that the incident takes place and saving the video frame when the pedestrian climbs over the turnstile if the incident takes place; repeating the first step if the incident does not take place. The monitoring method provided by the invention can detect the behavior of climbing over the turnstile at the opening of the turnstile accurately; besides, the hardware is realized easily, the algorithm is provided with a real-time performance, and the calculated amount is small; furthermore, alarming is performed while a corresponding record is preserved at a video monitoring end, so that all parties can work cooperatively, obtain evidence and playback a video when treating an emergency in a later period conveniently.

The invention discloses a marine water quality testing boat. The marine water quality testing boat comprises a monitoring base station and a transportation boat, wherein the monitoring base station isconstructed on the shore of a broad water area; the transportation boat walks in the water area administered by the monitoring base station and is controlled by the monitoring base station for cruising and water taking operation, and a water sample is fed into the monitoring base station for testing after water taking of the transportation boat is finished; the monitoring base station comprises abase station main body, a boat docking cabin, a bottle exchange cabin, a control cabin, a sampling bottle storage cabin and a water quality testing cabin; and the transportation boat comprises an upper boat body, a lower boat body, a boat body support, an antenna, a boat body control room, an image pick-up device, a water sample collection module, a sampling cabin, an electric push rod module, alighting device, a water sample collection opening and a screw propeller. The transportation boat of the marine water quality testing boat is high in wind resistance and wave resistance, a water quality testing sensor does not need to be installed on the transportation boat, the cost of the boat is reduced, and moreover, more accurate data can be obtained through a water quality testing instrumentconfigured inside the monitoring base station.

The invention discloses a multimedia digital watermark evidence taking mobile phone. The multimedia digital watermark evidence taking mobile phone is an intelligent evidence taking mobile phone whichuses the unique stability, concealment, security and fragility of a fragile digital watermark to ensure the integrity, the authenticity, the stability, the reliability and the authority of photographed and recorded multimedia data based on an image, audio and video fragile digital watermark embedding and extraction technology. When a user uses the mobile phone, imperceptible and unmodifiable fragile digital watermark information with unique identity confirmation is embedded in real time in a photographed image, audio and video. The image or the audio or the video with the fragile watermark canbe normally used and distributed but can not be modified manually. The authenticity of a file can be identified according to whether the photographed digital file contains the digital watermark information. The evidence taking process is quick, efficient, accurate, safe and convenient. The evidence taking content has the uniqueness of a digital evidence and the legal authority of evidence use, and the multimedia digital watermark evidence taking mobile phone disclosed in the invention can be used for evidence taking and recording in fields such as judicature, law enforcement and claim.

The invention discloses a method for property protection based on video image local feature matching, which comprises the sequential steps of acquiring video frames of a protected object by a security camera; setting a region of interest ROI in which the protected object is contained; extracting the number of FAST corners and coordinate information of each corner of the ROI in an initial frame, and storing the number of FAST corners and the coordinate information of each corner as X0; extracting the number of FAST corners and coordinate information of each corner of the ROI in the current frame, and storing the number of FAST corners and the coordinate information of each corner as X1; calculating a matching ratio k of the X0 and the X1, and making an alarm decision through comparing the k with a matching ratio threshold lambda and comparing the duration time t with a time threshold T. When the matching ratio k is less than the matching ratio threshold lambda and the duration time t is greater than the time threshold T, an alarm is triggered; and otherwise, the alarm is not triggered. The method disclosed by the invention well solves key problems that variations in light intensity exist under a complex background, partial and complete shielding occurs, the object is similar to the background in color, the object is small, and the like, and effective protection for properties is realized.

The invention discloses a retrieval method and retrieval system of video and audio monitoring information. The retrieval method comprises the following steps of: obtaining a time point when an event to be retrieved occurs; comparing the time point to be retrieved with the current closest absolute time point in a video and audio code stream, if the time point to be retrieved is later than the current closest absolute time point, carrying out forward positioning, and simultaneously generating an index file; if the time point to be retrieved is earlier than the current closest absolute time point, carrying out backward positioning; and obtaining the closest absolute time point earlier than the time point to be retrieved through the forward positioning and the backward positioning; and further carrying out frame-level positioning in the obtained absolute time point and the next absolute time point, thus obtaining the video and audio monitoring information at the time point to be retrieved. The retrieval method takes full advantage of the absolute time information in video and audio files, and can realize the two-way, fast and high-precision completion of the retrieval operation.

The invention discloses a method and system for identifying the behavior that a motor vehicle does not use high beam lights according to regulations, and a storage medium, and relates to the technicalfield of artificial intelligence machine vision, being able to solve the technical problem that a current investigation method is greater in the workload and has potential safety hazard. The method for identifying the behavior that a motor vehicle does not use high beam lights according to regulations includes the steps: using and installing two cameras for traffic monitoring, obtaining video streams collected by the two cameras respectively, obtaining the position of a target area by using a combination detection mode of car lights and car license plates in blaze inhibition video streams, and obtaining a ground coordinate position of the target area by means of perspective inverse transformation; obtaining a target area in common video stream by means of perspective inverse transformation; and detecting the illumination intensity of the target area in the common video streams, determining the state of opening of high beam lights, and according to the state of opening of the high beamlights, determining whether the motor vehicle corresponding to the license plate uses the high beam lights according to regulations. The method for identifying the behavior that a motor vehicle doesnot use high beam lights according to regulations can intelligently identify whether the motor vehicle uses the high beam lights according to regulations, is convenient for evidence obtaining, and issafe and reliable.

The invention provides a deleted file recovery method and device and a storage medium. The method comprises the following steps: traversing: traversing FLASH to obtain a set U of effective nodes whichare sequentially arranged on the FLASH; a classification step: dividing the set U into a set D of DIRENT nodes on FLASH and a set I of INODE nodes on FLASH according to the type of each effective node in the set U; and a recovery step: constructing a directory structure of the deleted file according to the set D and the set I, and recovering the deleted file. According to the method and the device, data recovery based on the FLASH node is realized. According to the invention, recovery or partial recovery of the deleted file under complex conditions can be realized, the success rate of file recovery is improved, evidence collection of data is facilitated, and the user experience is improved.

The invention provides a smart city rail transit engineering acceptance detection system and detection method, and relates to the technical field of rail construction. The smart city rail transit engineering acceptance detection system comprises a traction walking vehicle, a detection device, a traction rope and a line drawing assembly. The traction walking vehicle is installed on a steel rail ofan urban rail, the detection device is installed on the steel rail, the rear portion of the traction walking vehicle is connected with the traction rope, the detection device is dragged by the traction rope to move on the steel rail, and the line drawing assembly is installed on the detection device. According to the invention, the traction walking vehicle walks on the detection device; in the walking process, the distance between the two steel rails, the levelness between the two steel rails and the levelness of the top face of the single steel rail can be synchronously detected; and evidenceobtaining is facilitated through the detected multiple sets of data and the left measuring track, whether the smart city rail transit engineering is qualified or not is accurately judged, and the accuracy of acceptance detection is improved.

The invention discloses a monitoring vehicle system having the standard-exceeding snapping function. The system comprises an air monitoring device, a camera, a GPS positioning device, a data acquisition and transmission device, a computer, a monitor display and a wireless data transmission device. The invention also discloses a monitoring vehicle method having the standard-exceeding snapping function. The invention relates to the field of environmental monitoring, and provides a monitoring vehicle system having the standard-exceeding snapping function and a method thereof. According to the technical scheme of the invention, the flying dust concentration data, the road video image data and the geographic location data of the current location of a vehicle are collected in real time. The road video image data and the geographic location data are integrated and processed to obtain a geographic location image. Whether the flying dust concentration at the current location of the vehicle exceeds the standard or not is judged. According to the judgment result, the flying dust concentration data and the geographic location image are integrated and processed to obtain standard-exceeding data and standard-exceeding environment images, and then obtained data and images are stored. Therefore, the monitoring personnel can conveniently check the data and the images. The system and the method have the advantages of comprehensive collected information and wide monitoring range. Meanwhile, the quality of monitoring data is guaranteed.