Grid type step sound intelligent monitoring system in public security system

Abstract

The invention discloses a grid type step sound intelligent monitoring system in a public security system, which is characterized in that hardware consists of a step sound sensor, a data collector, a step sound controller, a data communication device, a monitoring server and the like, and software has online step sound information processing, analysis and visual display functions. The soft part and the hard part jointly form a digital, intelligent and high-resolution grid type step sound intelligent monitoring network. According to the system, recording, tracking and positioning of action tracks of suspicious persons or objects are realized, the persons or objects are prevented from invading a forbidden area, all action tracks before and after invasion are played back, and effective technical support is provided for arresting criminals. When an abnormal sound is detected by a step sound monitoring system placed in an internet access format in a monitoring area, the system automatically outputs a position control instruction of a related camera, so that a real-time video of the position where the abnormal sound is located is obtained in time, and various audio and video information is provided for event judgment. Due to the adoption of a micro-vibration monitoring technology, a step sound intelligent monitoring network in a public security system can provide digital, intelligent and high-resolution step sound monitoring; after software expansion, the system is also suitable for various object state monitoring services such as underground pipe network operation state monitoring, geological disaster early warning, building and structure safety evaluation and the like which can be realized by micro-vibration detection in a monitoring area.

Description

Technical Field

[0001] The invention belongs to the field of public security technology, in particular to a grid-type footstep sound intelligent monitoring system in a public security system. Background Art

[0002] Video security monitoring system (VSCS, video surveillance & control system) is an electronic system or network that uses video technology to detect, monitor the defense area and display and record the scene image in real time. It has been widely used in the field of public security. Due to the limitations of camera lenses and installation angles, traditional video monitoring systems are difficult to achieve full coverage of the monitoring area. Even if the camera is installed at multiple angles, full coverage cannot be guaranteed. The camera image acquisition is affected by many environmental factors (such as on-site lighting, strong light source interference, etc.), and it is impossible to effectively collect on-site images.

[0003] Microseismic monitoring is a new geophysical technology developed in the 1990s. It is used in many fields such as geological disaster monitoring, mine pressure monitoring, and coal mine two-zone monitoring. Vibration waves have a series of unique characteristics, such as being unaffected by day and night, not easily blocked, and directional. Footstep monitoring uses the propagation characteristics of sound waves themselves. There are basically no blind spots in the monitoring area, and it can more effectively control the real-time situation on the scene. Footstep monitoring technology can not only make up for the shortcomings of video monitoring technology, but also add a grid-type footstep intelligent monitoring network to the existing security system, which can be linked with the original video monitoring to provide a variety of audio and video information for judging the situation. Summary of the invention

[0004] In view of the above problems, the present invention proposes a grid-type footstep sound intelligent monitoring system in a public security system. The technical means adopted by the present invention are as follows:

[0005] The grid-type footstep sound intelligent monitoring system in the public safety system of the present invention has hardware composed of footstep sound sensors, data collectors, footstep sound controllers, data communication devices and monitoring servers, and software with online footstep sound information processing, analysis and visualization display functions. The hardware and software together constitute a digital, intelligent, high-resolution grid-type footstep sound intelligent monitoring network.

[0006] The grid-type footstep sound intelligent monitoring system in the public security system of the present invention realizes the recording, tracking and positioning of the action trajectory of suspicious persons or objects, prevents the above-mentioned persons from invading restricted areas and replays the action trajectory before and after the invasion, and provides effective technical support for arresting criminals. When the grid-type footstep sound intelligent monitoring system placed on the monitoring area detects abnormal sound, the system can automatically output the position control instruction of the relevant camera, which is convenient for timely obtaining the real-time video of the position of the abnormal sound, and provides a variety of audio and video information for determining the state of affairs. Due to the adoption of micro-vibration monitoring technology, the footstep sound intelligent monitoring network in the public security system not only provides digital, intelligent, and high-resolution footstep sound monitoring, but also is applicable to various object status monitoring services such as underground pipe network operation status monitoring, geological disaster early warning, building and structure safety assessment, etc. in the monitoring area after its software expansion, which can be realized by micro-vibration detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The present invention is further described in detail below with reference to the accompanying drawings and embodiments:

[0008] Figure 1 It is the overall architecture diagram of the grid-type footstep sound intelligent monitoring system in the public security system of the present invention.

[0009] Figure 2 for Figure 1 Software system structure diagram. DETAILED DESCRIPTION

[0010] Busheng intelligent monitoring system can be applied to public safety systems in towns and cities, and can also be used for non-invasive damage micro-vibration monitoring projects, such as underground pipe network operation status monitoring, geological disaster early warning, building and structure safety assessment, etc. The grid Busheng intelligent monitoring system is described below as an example, which is only a typical system layout. In fact, all layouts must be specifically designed according to the application environment and customer requirements.

[0011] The hardware of a typical grid-type intelligent monitoring network for footsteps consists of several parts, including footstep sensors, data acquisition devices, footstep controllers, data communication devices, and monitoring servers. The footstep detection unit can be based on any combination of detectors, accelerometers, and force-balanced accelerometers, and can be used with single-component and three-component sensors to provide more accurate footstep information. The data acquisition unit can continuously digitize and time-stamp the signals from the footstep sensors, and then send the data through the network using the low-latency waveform protocol of the footstep intelligent monitoring network. The footstep processor is an embedded computer with an integrated network switch, which is used to run the data acquisition software. The tasks performed include acquiring data from the data acquisition unit, triggering acquisition, pre-trigger filtering, buffering data, and transmitting data to the footstep server. The data communication device is selected according to the communication method requirements. For example, XDSL technology extends the Ethernet network link by using standard telephone lines. This technology can be used at work sites where telephone networks already exist and it is inconvenient to install fiber-optic networks. The footstep data will eventually be transmitted to a central computer or local disk for storage or processing. The sound software running on the central computer is used to record, process, visualize and analyze the sound data collected by the sound stations, and is responsible for the central recording of all sound data, visualization and processing of the sound data collected by the sound acquisition system. By comparing the data from the model and the sound system status, it studies related events in space and time, issues warnings when dangerous events occur, and can also display the status information of the sound monitoring system and the results of daily sound data processing services. The sound monitoring system can use a variety of data communication methods to adapt to different system environment needs; all sensors contain intelligent electronic components to provide sensor type, serial number and orientation identification. In addition, the intelligent sensor can generate internal vibrations to verify the operation of the sensor and detect whether the cable wiring is correct after installation.

[0012] The grid-type footstep intelligent monitoring system can complete the five functions of footstep detection, data transmission, operation control, information display, and record registration. When the system is operating normally, especially at night, the movement trajectory of people or moving objects in the detection area will be recorded and displayed. If there are people or objects that break into the restricted area, the system will issue an alarm message and link with the video surveillance system to provide a variety of audio and video information for judging the situation.

Claims

1. A grid-type footstep intelligent monitoring system in a public safety system, characterized in that The hardware consists of a footstep sensor, a data collector, a footstep controller, a data communication device and a monitoring server. The software has the functions of online footstep information processing, analysis and visualization display. The two parts together constitute a digital, intelligent, high-resolution grid-type footstep monitoring network.

2. The system according to claim 1, characterized in that The system uses grid computing technology to record, track and locate the movement trajectories of suspicious persons or moving objects, prevent the above-mentioned persons or objects from invading restricted areas, and can replay the entire movement trajectory before and after the invasion, providing effective technical support for the arrest of criminals.

3. The intelligent monitoring system for footstep sound according to claims 1 and 2 is characterized in that Grid positioning technology is used for the sound location. When an abnormal sound is detected, the system automatically outputs the position control instructions of the relevant cameras so as to obtain real-time video of the location of the abnormal sound in time, providing a variety of audio and video information for judging the situation.

4. The intelligent monitoring system for footstep sound according to claim 1, 2 or 3, characterized in that By adopting micro-vibration monitoring technology, the footstep sound intelligent monitoring network in the public security system can not only provide digital, intelligent, and high-resolution footstep sound monitoring, but its software expansion is also suitable for underground pipeline operation status monitoring, geological disaster early warning, building and structure structural safety assessment, and other types of object status monitoring services that can be achieved by micro-vibration detection in the monitoring area.

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