System profile

The smart campus environment monitoring system solution is a comprehensive campus environment management solution, through high-tech means to improve the comfort and security of the campus environment. The solution covers multiple key areas to ensure that school teachers and students can learn and live in a healthier, smarter environment.

l  The dormitory noise monitoring system is an important part of the scheme. By installing advanced noise sensors, the system is able to monitor the noise level in the dormitory area in real time, ensuring that students have a quiet rest environment. Once the noise level exceeds the preset standard value, the system will automatically alarm, and the manager can take timely measures to reduce the noise and ensure the sleep quality of students.

l  The campus directional broadcasting system is designed to improve the efficiency and accuracy of information transmission within the campus. Through this system, audio can be played in specific areas, such as the playground and outdoor activity areas, without disturbing other ongoing teaching activities and nearby residential areas.

l  The classroom balanced sound field system is specially designed specifically to optimize the teaching environment. Using the latest array wave surface sound beam directional sound technology, let the sound evenly cover every orientation of the classroom, to realize the balanced transmission of sound.

l  The construction of campus science meteorological station enables students to have a more intuitive understanding of meteorological knowledge and provide accurate meteorological data for the school. The weather station can not only monitor basic weather information such as temperature, humidity and wind speed, but also provide weather forecast, so that teachers and students can better plan their daily activities.

l  The design of the environmental noise monitoring system is around the campus to monitor the noise pollution around the school, protect the school from external noise interference, and at the same time can provide scientific data support for the school, so as to take corresponding sound insulation measures.

l  The core feature of the campus anti-bullying intelligent audio monitoring system is to capture sound through a microphone array installed in key areas of the campus and to transmit these audio signals to the central processing unit. Audio data were analysed in real-time to identify potential conflict or bullying behaviors. The system can identify insulting language, intimidation or other forms of verbal aggression and be able to distinguish between normal communication and underlying bullying. Once the system detects a suspicious audio mode, it immediately notifies campus security personnel or designated faculty and staff, enabling them to act quickly.

l  The establishment of the campus air quality monitoring system is an important means of real-time monitoring of the air quality inside the school. Through accurate sensors, the system can detect the concentration of harmful substances in the air, such as PM2.5, PM10, CO2, etc., to ensure that the air quality inside the school meets the health standards and protect the health of teachers and students.

l  The campus map guide function is another highlight of the scheme. With this feature, students and faculty can easily navigate the campus, both freshmen and visitors are able to quickly familiarize themselves with the campus environment and find where they want to go. The campus map guide system integrates detailed campus map information, provides clear path guidance, and at the same time can recommend the best route according to the user?s real-time location, which greatly improves the traffic efficiency within the campus.

Through these high-tech environmental monitoring and management methods, the Smart Campus environmental monitoring system has created a more intelligent and healthy learning and living environment for the school, which is helpful to improve the quality of education and the learning efficiency of students.

Construction significance

The construction of smart campus monitoring system is of great significance. It can not only improve the management efficiency of school management, but also provide a safer, more convenient and intelligent learning and living environment for teachers and students.

l  Safety management: Through the installation of anti-bullying monitoring and alarm equipment, the smart campus monitoring system can monitor the safety situation inside and outside the campus in real time, timely find and deal with potential safety risks, effectively prevent and reduce the occurrence of campus safety accidents, and ensure the personal safety of teachers and students.

l  Environmental monitoring: the system can monitor the temperature and humidity, air quality, noise and so on, adjust environmental parameters in time, to ensure the comfort and health of the campus environment, and provide a good learning and living environment for teachers and students.

l  Reduce pollution: through the installation of campus directional broadcasting system, improve the efficiency and accuracy of campus information transmission. Through this system, audio can be played in specific areas, such as the playground and outdoor activity areas, without disturbing other ongoing teaching activities and nearby residential areas.

l  Data analysis: By collecting and analyzing all kinds of data on campus, the smart campus monitoring system can help managers understand all aspects of campus operation, so as to make more scientific and reasonable decisions, and promote the modernization and informatization of campus management.

l  Emergency response: In case of an emergency, the smart campus monitoring system can quickly start the emergency plan, coordinate the response actions of various departments, effectively control and deal with the emergency situation, and reduce the impact of the event on the normal order of the campus.

The construction of smart campus monitoring system can not only improve the management efficiency of campus, but also create a safer, more convenient and intelligent learning and living environment for teachers and students. It is an important embodiment of the development of modern educational technology, and has important strategic significance for promoting the construction of campus information and improving the quality of education.

Construction benefits

l One-stop solution: one-stop wireless solution, easy to facilitate unified management;

l Real-time monitoring: real-time monitoring of the campus environment, forming the intelligent construction of the campus environment;

l Cost saving: save the cost of human and physical resources to achieve efficient management;

l Improve quality: to provide students with a better campus environment, improve teaching quality and school visibility;

l Reduce safety accidents: significantly reduce campus safety accidents;

l Improve regulatory efficiency: greatly improve security and management efficiency;

l Quick emergency response: to comprehensively improve the emergency response capacity of special events;

l Leadership inspection has highlights: the comprehensive management platform reviews the information of the whole school at any time to reflect the management level;

l  Parents experience more assured: for students? campus life, learning to increase the safety guarantee, parents are more assured;

l The teacher more worry: to the teacher, security added hundreds of 24 hours not good eye assistant, work more worry.

Dormitory noise monitoring system

Osn dormitory noise supervision system (with voice print identification), is based on the ordinary upgrade, for the dormitory noise source and development, monitoring range (30-130dB), can analyze the excessive noise source and screening, to conform to the excessive noise type to push, the invalid noise (such as snoring physiological noise) do not do alarm processing.

Voice print identiVoice print recognition, also known as speaker recognition, is a biometric technology that performs feature extraction and authentication with a computer by converting sound signals to electrical signals. Its biological basis is that biological speech signals carry a unique acoustic frequency spectrum, as unique and stable as fingerprints. Can identify different types of sound sources in the dormitory, such as snoring.

l Feature extraction: pre-aggravation- -> sub-window- -> Discrete Fourier transform- -> Mayer filter set- -> Inverse discrete Fourier transform- -> image

l Model training set:> 10,000 training samples

l Voice print recognition accuracy rate: 85%

l Identification of the response rate:> 3s

l Call method: support cloud call or local terminal call

l Technical protocol: Support the HTTP protocol

Main control call

The design of the master paging system allows for rapid and efficient point-to-point, multipoint communication, which is particularly important for situations requiring real-time monitoring and rapid response. It can send alarms to the dormitory with exceeding the noise in time to reduce the impact of the continuous pollution of noise.

l Using Linux system, stable performance, fast operation;

l Using DSP software audio decoding scheme, high fidelity;

l 7-inch true color screen, touch operation, humanized human-machine operation interface, simple and fast;

l With the two-way intercom function with the remote call station of each terminal and digital network;

l Built-in high-fidelity 3W / 8 Ω full-frequency listening horn, to achieve network monitoring;

l With the one-key start of the whole area broadcast function, support multiple quick partition broadcast one-key start function;

l  With the touch screen to realize the whole area, partition, grouping, fixed point of each terminal broadcast and operation;

l It has the function of broadcasting the local U disk MP3, line, microphone and other sound sources to the designated terminal.

Network sound column

l Using IP network module, stable performance, fast operation;

l Using PCM audio decoding scheme, high fidelity;

l Receive the platform instructions and audio signals, and support the platform to remotely control the volume;

l Support the platform to set and manage the own rights;

l Support state return, can be the local play, working state back to the platform;

l Support the platform to set and manage the own rights;

l Support the local remote upgrade function of the platform;

l Support the platform to the partition, group broadcast function;

l Built-in 450W stereo class D digital power amplifier;

l The equipment power supply adopts the switch power supply design, and the AC220240V voltage can work normally;

l Support 4G wireless network access of Mobile, Unicom and Telecom;

l  Support DHCP, compatible with router, switch, network bridge gateway, Intemet, multicast, unicast and other arbitrary network structure;

Built-in network isolation and lightning protection processing circuit.

Monitor the large screen

The dormitory noise monitoring large screen is specially designed for real-time equipment to monitor and display the noise level inside the dormitory area. The large screen is usually installed in the manager?s office to effectively monitor and manage the environmental noise inside the dormitory.

Through this noise monitoring screen, the manager can intuitively understand the noise situation in each area of the dormitory. The screen usually shows the noise level of different rooms or floors of the dormitory, which is quantified by decibel (dB). Once the noise in a certain area exceeds the preset standard value, the monitoring screen will issue a warning through color change, number change or flashing, reminding the management personnel to take timely measures.

Dormitory noise monitoring and management platform

Dormitory noise monitoring management platform mainly includes the computer web and mobile terminal management system, using advanced acoustic sensors and data analysis technology, real-time monitoring of noise inside and outside the dormitory, historical data view, excessive voice print recognition type, remote broadcast, and other functions, to ensure that students can rest and study in a quiet and comfortable environment.

Features and Advantages

l With the voice print intelligent analysis function, effectively identify different types of noise sources;

l Using the high sensitivity of the capacitive microphone, stable signal, high accuracy;

l The 24-hour automatic monitoring, without manual intervention, is stable and reliable;

l Built-in peak sound alarm function, can set the upper and lower limits and return difference of each individual parameter;

l Wide measurement range, good linear, easy to use, easy to install, transmission distance;

l  The monitoring factor is the sound decibel level, which not only achieves the purpose of noise supervision, but also respects the privacy of students;

l The transmitter uses unpolar DC24V to prevent the possibility of wiring error damage to the equipment.

Campus outdoor directional broadcasting system

The campus outdoor directional audio series adopts full frequency parameter array technology, through the combination of multiple speakers, the main advantage of sound control and directional transmission lies in its flexibility and stability. Since it can change the phase of the sound waves, it can be adapted to a variety of different environments and goals. In addition, the working principle of the full frequency parameter array is relatively stable, not easy to be affected by environmental factors, with a wide frequency sound range, and good low frequency and good sound quality.

technical parameter

Product characteristics

l The world?s leading beam control and algorithm, multi-channel real-time audio processing technology

l It can be matched with accessories to achieve infrared induction, volume adaptive adjustment, multiple cascade and other functions

l Using professional waterproof, anti-corrosion technology and materials, through the strict high and low temperature environment test

l Precise sound coverage area control, a single sound effective distance up to 60 meters

l Production appearance is lightweight, miniaturization, easier to use in a variety of business scenarios

Classroom equalization sound field system

Using the latest array wave beam directional sound technology, let the sound uniform coverage to the classroom every orientation, realize the balance of sound transmission, the system by the array wave speakers through professional simulation sound field design and audio processing technology, realize the spread of sound equilibrium, clear nature, let sound accurate coverage to the classroom environment, not only can protect students? hearing health, protect the teacher throat health, let the teacher easily, power teaching to improve the quality of classroom teaching, improve and enhance classroom teaching order, widely applicable to the large schools across the country.

Intelligent audio monitoring system for preventing school bullying

Pain point analysis

l Campus bullying and fighting incidents affect students? physical and mental health;

l Surveillance camera only look back after the event, can not be timely warning;

l  Bullying mostly occurs in toilets, dormitory and private places, and cameras cannot be installed;

l One-key alarm emergency cannot be triggered, and it is useless.

Construction purpose

l  No dead end defense, help children "voice": for dormitories, toilets, stairs and other high incidence areas of bullying

Domain, for the students to realize the alarm for help.

l  Take the initiative to combat school bullying: to provide a safety management and early warning system for schools, and

Find and stop school bullying.

l  Response policy: to prevent and curb the occurrence of school-related and student-related safety incidents, ensure the safety of life and property of teachers and students, and contribute to maintaining the harmony and stability of the education system.

l Evidence traceability, does not involve privacy: only for 30S before and after the alarm recording storage, does not infringe on the legitimate rights and interests of students.

AI anti-bullying sound pickup terminal

l Support omnidirectional sound picking, pick up radius up to 5 meters;

l Support for SMS or telephone notification and alarm mode;

l Support the monitoring of verbal bullying incidents in schools;

l Event monitoring accuracy rate is> 90%;

l Support for two-way voice intercom;

l Event monitoring false alarm rate of 1 time / 7 day / set;

l Support for wired or 4G transmission;

l Support the external smoke alarm;

l  Support top suction, wall hanging a variety of installation methods;

l Support for POE power supply.

mnidirectional acoustic radar

l Using multi-microphone array and algorithm, support 360°range of directional sound pickup;

l Using neural network audio detection technology, it can accurately identify and distinguish urban abnormal audio events and report them;

l  Support the sound source positioning of excessive noise and abnormal audio events, and link the ball machine camera to rotate to the designated position;

l Support customized software and algorithm, support algorithm online loading and upgrade.

Intelligent analysis and alarm management server

Deployed in the school building weak current room, network room and other areas.

Intelligent audio analysis

l  Support the secondary review of the reported audio data;

l Multi-dimensional combination detection and judgment, abnormal sound events, voice keyword combination detection, combined with sound pressure level, duration to improve the early warning accuracy.

2. Data and system management

l  Support the alarm record management and the storage of the alarm audio data;

l Support the operation status monitoring and management of the terminal equipment.

Campus security management platform

1. Alarm Policy Management

l Keyword alarm; sound event alarm; custom alarm keyword; sound pressure alarm; custom combination alarm strategy;

l Support to choose the way to receive the alarm notification, the notification mode is "SMS notification" and "telephone notification", can be selected;

l  Support to choose the time to receive the early warning notification, the notification time is from Monday to Sunday, with multiple options;

l Support alarm interval time and trigger times need matching time.

2. Alarm record and equipment management

l Supports viewing all event alarm records and viewing the details of the record

l And alarm audio;

l Support the configuration of monitoring bullying event types, which can be synchronized to all settings with one click

l have;

l Support the hierarchical control of the equipment, and define the corresponding responsible person information;

l  Support the model, SN number, version information of the current equipment;

l You can view the device data and the alarm data statistics.