KR102638372B1 - The monitoring camera system - Google Patents

Abstract

In an automatic control system using a multi-spontaneous polarization sensor,
The multi-spontaneous polarization sensor consists of a moving body detection PIR sensor that detects a moving body, one or more human body detection PIR sensors that detect a stationary body, a main control unit composed of a microprocessor, and a power supply unit.
The main control unit detects a moving body by supplying driving power to the moving body detection PIR sensor through the power supply unit, and detects a stationary body by sequentially supplying square wave driving power at a time difference to one or more human body detection PIR sensors through the power supply unit. Do it as

Description

The monitoring camera system for crime prevention

This technology is a technology related to CCTV surveillance cameras for crime prevention that detects and automatically controls moving or stationary human bodies through multi-spontaneous polarization sensors.

Currently, as a human body detection sensor, a pyroelectric infrared (PIR) sensor is widely used.

A pyroelectric infrared sensor (PIR) detects the human body using the principle that it normally maintains a state of spontaneous polarization, but when infrared rays are absorbed from the human body, the temperature rises and the intensity of spontaneous polarization decreases. .

However, even if infrared rays are absorbed, after a certain period of time, the spontaneous polarization state reaches equilibrium again, making it impossible to detect the human body.

In order to detect a stationary human body to solve the above problems, a shutter-type shutter and motor vibration were used to give the same effect as if the human body was moving.

However, mechanical contacts and mechanical movements are more prone to failures and have lower energy efficiency than electronic contacts.

A surveillance camera system for crime prevention is typically an appropriate combination of a wide-area surveillance camera that monitors a wide area through a fixed surveillance camera or fisheye camera, and a centralized surveillance camera to intensively monitor the event area using a dome camera with an integrated rotary motor or a pan-tilt combination box camera. This creates a crime prevention system.

The present invention is a crime prevention system combined with a super-directional broadcasting system capable of broadcasting warnings only for the intensive surveillance area along with intensive monitoring of events by a control agent or an intelligent surveillance system at an integrated crime prevention center.

In general, surveillance camera systems for crime prevention use 20~40W omni-directional speakers (four low-directional speakers with a directivity angle of 90 degrees or three low-directional speakers with a directivity angle of 120 degrees are combined to form a 360-degree omni-directional speaker, as follows: Since broadcasts are made through non-directional speakers, the audible range is limited, and if the output of a power amplifier exceeds 40W is applied to increase the audible range, noise complaints will occur.

The present invention aims to solve the problems of non-directional (or low-directional) speakers and enable effective ultra-long-distance super-directional warning broadcasting.

As a differentiated feature of the present invention, it is characterized by linking the system with an intensive surveillance camera for the purpose of super-directional broadcasting at the shooting point of the intensive surveillance camera, rather than a general super-directional speaker.

In other words, a distinctive feature is that optimal super-directional broadcasting is possible according to the dynamic change in the distance between the broadcasting device and the broadcasting target point.

The present invention uses ultrasonic waves to implement the above-mentioned differentiated features, including a sound wave conversion technology that improves conversion efficiency and intelligibility when ultrasonic frequencies are converted to audible frequencies at the broadcast target point and the target point of the broadcast target point and the intensive surveillance camera. It applies a very precise, cutting-edge technology that varies the ultrasonic frequency and output according to changes in the target distance.

The test and performance certification test method for this technology is to install a microphone at a point that matches the center focal length of the intensive surveillance camera shooting area and install the same microphone at a point that has the same focal distance as the measured sound pressure value P1 but is beyond the shooting range of the surveillance camera. Test and performance is certified through P1/P2 (dB) for the sound pressure value P2 measured by setting and clarity (%) above the target setting value measured at the center focal distance of the intensive surveillance camera shooting area.

The comparative test is performed by conducting the same test as above using non-directional speakers of 20W, 40W, and 40W or more.

It is related to the Public Procurement Service’s National Marketplace detailed product number 4617162201 (video surveillance device).

This is an electronic display board that displays “Civil Defense Alert Propagation Guidelines Using the Ministry of the Interior and Safety Electronic Signboard” operated by the control of the emergency bell integrated box.

It is a crime prevention CCTV system that includes an integrated emergency bell enclosure for civil defense/disaster forecasting and broadcasting performance improvement.

This is a broadcasting method using an internal network of security cameras for crime prevention.

The present invention is related to the following laws and regulations.

1. Article 33, Paragraph 3 of the Framework Act on Civil Defense, Article 55-2 of the Enforcement Decree of the same Act (Dissemination of Civil Defense Alerts) Includes “buildings subject to alarm dissemination,” and additionally includes warning data (disaster warning) for inside and outside public buildings such as schools and government offices Based on Article 48 (1) of the Personal Information Protection Guidelines for CCTV systems for crime prevention, including multi-use facility alarm terminals and emergency bells and broadcasting devices that broadcast disaster risks, air raids, chemical and biological broadcasting, TTS (Text To Speech) data, etc.) This is a project to improve the performance of the “emergency bell integrated enclosure” for CCTV registered in the personal information protection comprehensive support system installed and operated in public places.

2. Persons pursuant to Article 38-2 (3) 2 and 3 of the Framework Act on Disaster and Safety Management, Article 46-2 (3) and 47 of the Enforcement Decree of the same Act, and Article 11-4 (3) of the Enforcement Regulations of the same Act. This is a technology related to disaster text broadcasting that is requested from telecommunication service providers and broadcasting service providers in order to prevent or reduce damage to life, body, and property when damage is expected.

3. This is related to the Ministry of Public Administration and Security's 'Notice of guidelines for disseminating civil defense warnings using electronic display boards (June 5, 2019)'.

In configuring a network,

It consists of one or more of a quantum communication channel (QUANTUM CHannel), a hybrid-QUANTUM CHannel, and a non-QUANTUM CHannel, and the following embodiment configuration is possible.

The Alice QUANTUM SERVER inside the Korea Aerospace Operation Center (KAOC) and the Bob QUANTUM SERVER inside the 1st Civil Defense Warning and Control Center are the quantum entanglement of Alice QKD (Quantum Key Distribution) and Bob QKD (Quantum Key Distribution) QUANTUM KEY A quantum communication channel (QUANTUM CHannel) is formed through exchange.

The 1st Civil Defense Warning Control Center and the city/provincial civil defense warning control center are connected to the civil defense dedicated network through the civil defense control system to transmit warning data, and between the city/provincial civil defense warning control center and the crime prevention CCTV system or premises broadcasting device (PA) The network consists of a hybrid quantum communication channel (Hybrid-QUANTUM CHannel) with QRNG (Quantum Random Number Generator) SoC applied.

The classical communication network of local governments below the city/provincial civil defense warning and control center is composed of non-quantum communication channels (non-QUANTUM CHannel), but applies the best enhanced security technologies such as PUF Chip, eFUSE Chip, TRNG Chip, and FIDO authentication.

FIDO is an abbreviation for ‘Fast IDentity Online’ (fast online authentication), and is a technology that performs personal authentication more conveniently and safely by using biometric technology without ID and password in an online environment. Physical characteristics such as fingerprints and iris are mainly used, and biometric information authentication of behavioral characteristics such as movements is also used.

In December 2014, more than 200 global companies, including Samsung Electronics, Google, and Microsoft, announced the 'international authentication technology standard FIDO 1.0', which enables safe authentication using biometric technology. Since then, biometric authentication has been implemented at Samsung Pay and various financial institutions. We are actively providing basic financial services.

The present invention is a BB84 or COW quantum communication network using quantum entanglement, a physically unclonable PUF generated during the semiconductor chip production process, or a PIN (Personal Identification Number) DATA of eFUSE first developed by IBM and IDQuantiqe-SK Telecom. It is related to a hybrid quantum communication network or classical communication network that combines a quantum communication network and a non-quantum communication network using the developed QRNG (Quantum Random Number Generator) QUANTUM KEY using random numbers.

In addition, it is related to a hybrid quantum communication network network that combines QUANTUM KEY and FIDO (Fast IDentity Online) authentication.

It is a quantum security system based on quantum communication (QUANTUM Communication). It is related to quantum communication that communicates over dedicated optical cable lines and a quantum security system that operates a hybrid rental network of ISP (Internet Service Provider) operators (static IP, dynamic IP).

IoT (Internet) connected to networks such as LoRA, SigFOX, and NB-IoT based on LPWAN (Low Power Wide Area Network) using local government crime prevention CCTV self-network (dedicated line, fixed IP, dynamic IP using CC-certified VPN) of Things) is a security-related technology to provide services to terminals.

A True Random Number Generator (TRNG) using an ultra-small PUF (Phisically Unclonable Function) Chip and a TRNG (True Random Number Generator) Chip. In relation to the generation and distribution of security keys, the PUF Chip or A PRIVATE KEY is generated by extracting PIN (Personal Identification Number) data from the eFUSE Chip, and a random number is generated through a True Random Number Generator (TRNG) using QRNG (Quantum Random Number Generator), etc. Create a public key (PUBLIC KEY).

Unlike the conventional technology that performs Log-IN user authentication with OTP QUANTUM KEY using QRNG (Quantum Random Number Generator), the present invention uses 'Fast IDentity Online' (fast online authentication) FIDO2 technology and a physical network partition server. Through this, security is strengthened by physically separating different networks and transmitting data in one direction to different networks.

The OTP (One Time Password) authentication security generated through the physical object authentication PUF (Phisically Unclonable Function) Chip of the present invention and the QRNG (Quantum Random Number Generator) that generates natural random numbers has the highest security.

In relation to the creation and distribution of security keys using an ultra-small PUF (Phisically Unclonable Function) Chip or eFUSE and QRNG (Quantum Random Number Generator) Chip, a PIN (Personal Identification Number) is attached to the eFUSE/PUF Chip through process deviations that occur during the semiconductor manufacturing process. Data is extracted to generate a private key (PRIVATE KEY), and the private key is encrypted using a quantum random number generated through QRNG to generate a public key (PUBLIC KEY).

According to one embodiment, the PUF generates a PIN that can be used as an authentication key for knowledge-based authentication. This PIN may be a random digital value generated by process deviations that occur during the PUF manufacturing process.

Additionally, this PIN may be a time-invariant digital value whose value does not change depending on the surrounding environment once the PIN DATA is extracted and generated through eFUSE, first developed by IBM. Since this PIN is not exposed to the outside, according to one embodiment, it is possible to prevent security threats to the device's authentication system.

Among the terms currently in common use, the abbreviated word for the original word is expressed as follows.

Program Random Number Generator (PRNG), System On Chip (SoC), Quantum Random Number Generator (QRNG), Transport Layer Security (TLS), Physically Unclonable Function (PUF), Main Control Unit (MCU), Fast IDentity Online 2 (FIDO2) ), TRNG (True Random Number Generator), QKD (Quantum Key Distribution), O/S (Operating Systems)

The recommended measuring range of an ultrasonic range finder is about 15m, and a laser range finder is used when the error range must be stable even at long distances of 100m or more.

In the present invention, a laser range finder is additionally used to improve the precision of use or measurement by converting the focal length (f) of the intensive surveillance camera into a target distance.

An infrared human body detection sensor (PIR sensor, Passive Infrared Sensor) is sometimes used to detect a moving human body using the spontaneous polarization effect, but on the other hand, it is used by additionally applying a motor and shutter to detect a still human body.

In the present invention, mechanical contact or mechanical movement improves the conventional problem of high failure rate.

In addition, when installing a separate infrared camera for night photography or applying an infrared filter by driving a motor at night, expensive software that adds color is applied to solve the problem of black and white images being displayed. Rather than using a common low-cost visible light camera and an eye-level camera that combines dimming control lighting, a hybrid black box-type surveillance camera with low cost and high cost-effectiveness compared to functionality is implemented.

This is a technology that additionally disseminates civil defense alerts from multi-use facility alarm terminals or civil defense alert linked servers that disseminate civil defense alerts for multi-use facilities by improving the performance of emergency bells using the internal CCTV network for crime prevention.

Cameras using infrared rays include thermo-graphic cameras, optical gas imaging (OGI) cameras, and vision cameras equipped with IR (InfRared) vision filters.

A server is a computer that stores commonly used information on a single computer or collects programs that use a lot of computer resources such as memory in a communication network that connects multiple computers through communication lines. Other computers connected to the communication network search for and receive necessary information from the server, or send data to be processed by a program on the server and receive the results back. These are called clients. In some cases, rather than concentrating information and programs on just one computer, each computer holds information and programs distributed. In this case, all computers establish a server/client relationship with each other. On the Internet, a computer that provides information is called a web server, and a computer that connects to the web server and searches for information becomes a client.

A microprocessor is a TTL or CMOS IC that operates only according to specified characteristics, but a microprocessor allows an administrator to implement desired operating characteristics by injecting a program into the processor. Like a computer's CPU, it can issue commands and receive specific commands. It is automatically controlled according to a processor map determined to be present, and is manufactured in the form of a USB (Universal Serial Bus) or PCI Board (Peripheral Component Interconnect Board) equipped with a microprocessor (or MCU (Micro Control Unit)), so it can replace a server. .

Pyrotypical infrared sensor (PIR sensor; Passive InfraRed Sensor) is a representative moving body detection sensor that detects a moving human body using the spontaneous polarization effect. For precise detection, a dual or quad type pyrotypical infrared sensor (hereinafter referred to as There have been a number of prior arts that used an additional PIR sensor to detect different detection areas, but in the present invention, more than one PIR sensor detects the same detection space, so that the detection purpose, detection method, and utilization method of the PIR sensor are different. It is differentiated from prior art.

In addition, due to the nature of the PIR sensor, which only detects moving bodies, there has been prior technology to detect a stationary human body by additionally applying a motor and a shutter to detect a stationary human body. However, because it is based on mechanical movement, it has low efficiency and failure rate. There has been this growing problem.

Using electronic contacts, which have a lower failure rate than mechanical contacts, two or more PIR sensors, which are currently mass-produced at low cost and generally costing less than $1, are used to generate non-human body detection, moving body detection, and stationary human body detection events and use them as automatic control event data. do.

Do not use expensive cameras that use the infrared range, such as infrared (IR) cameras, infrared (IR) transmitters, or thermal imaging cameras.

In particular, rather than applying a color image using expensive software to a black-and-white image captured by an infrared (IR) camera, it is characterized by applying an ultra-low-intensity visible light range camera that shoots using visible light lighting with a PIR sensor.

The present invention aims to provide a crime prevention system capable of super-directional warning broadcasting combined with a super-directional broadcasting system capable of broadcasting warnings only in the area under the intensive surveillance of control personnel in an integrated crime prevention center, and to control a super-directional ultrasonic speaker according to the focal length of a surveillance camera. make it a task.

In particular, sound wave conversion technology improves conversion efficiency and intelligibility when the ultrasonic frequency is converted to audible frequency at the broadcast target point through an ultrasonic speaker, and technology that matches the broadcast target point with the target point of the intensive surveillance camera to respond to changes in target distance. The key task is to vary the ultrasonic frequency and output accordingly.

CCTV surveillance cameras for crime prevention generally monitor images captured by a main camera consisting of a pan/tilt camera and a fixed camera at a height of 4 to 6 meters.

Although the video emergency bell has a micro-sized camera, when the emergency bell push button is activated, power is supplied and a two-way video call is made, so it does not have a surveillance function for crime prevention.

If a camera on the top of the enclosure that can accurately capture the face of a human object at the height of a person's face is applied, it will be very effective in preventing blind spots and facial recognition.

However, while transmitting video from one pan/tilt camera and one fixed fisheye camera or one pan/tilt camera and 4 to 6 fixed 360-degree cameras from one IP location, 4 to 9 additional video images are captured from the top of the hull. There is a problem with transmitting camera footage to the CCTV control center (integrated crime prevention center) and storing it in memory for 30 days due to the high cost burden.

In particular, the expansion of storage devices in the CCTV control center (integrated crime prevention center) due to the expansion of security cameras raises not only the cost problem of the storage devices, but also the problem of requiring an increase in the total floor area of the building, which cannot be solved by simply increasing the cost. .

In particular, the fisheye camera has severe distortion, especially in the center, so it cannot be expected to have a crime prevention function. Since it shoots from the top down, it is impossible to recognize a person's face, and as it moves toward the center, only the person's head is captured, so it has no crime prevention function. I couldn't expect it.

In the present invention, the camera on the top of the enclosure at an eye level of 1.5 ~ 3M from the ground can capture a person's face through eye-level camera photography without distortion like a fisheye camera.

Integrated crime prevention center monitors monitor about 50 surveillance camera videos, but in reality, they can only focus on monitoring one or two videos.

Normally, the video is stored in a black box, and only when an emergency bell is activated or an abnormal sound source is detected, it is transmitted to the control center through the wireless carrier network. However, after the basic data is exhausted, the data is collected from the low-speed unlimited data plan or the integrated data of all subscribed terminals. Data is received through the integrated rate plan wireless carrier network.

The task is to secure the QUANTUM PUBLIC KEY, QUANTUM PRIVATE KEY through the QRNG (Quantum Random Number Generator) SoC in a classical communication network, and the unique PRIVATE KEY through the PUF (Phisically Unclonable Function) Chip, which is a physically unique chip that cannot be cloned, or the eFUSE first developed by IBM. .

In the field of machine intelligence communication, a new technology called eFUSE/PUF allows devices to generate their own passwords and use them for authentication, thereby performing security authentication at a trustworthy level to identify each other between devices and confirm whether they are legitimate entities. An apparatus and method are provided.

In particular, quantum coherence and pulse arrival time are randomly selected and measured on a dedicated line connected by IDQuantiqe S.A.'s optical cable, qubits are composed of non-empty pulse positions, and quantum communication and quantum have the feature of defending against coherence attacks with decoy pulses (decoi-PULSE DEBUGGER). It is a quantum communication system that strengthens security through quantum authentication of data in an ISP (Internet Service Provider) leased (dedicated/private) network that does not form a communication channel.

When applying secure communication using encryption and decryption to a device or system that performs machine intelligence communication, a security authentication device and method that is robust against physical attacks or unauthorized access to the security authentication system of the device is provided.

Despite high security such as quantum cryptography security, there is no comparable technology and there is no certification standard such as National Intelligence Service CC certification, so technologies such as National Intelligence Service CC certification SSL-VPN are added, but the more security there is, the more there will be no shortage. .

By detecting the same detection area through a multi-pyroelectric infrared sensor (PIR; Pyroelectric InfraRed), the first state (no human body detected), the second state (dynamic human body), the third state (human body stopped, passing), and the fourth state ( As the human body is detected, the lighting is dimmed and the original color video is captured with an ultra-low-intensity general camera (visible light) and stored in a black box.

Calculation formula: (Single/Dual ultrasonic speaker + Quad ultrasonic speaker + Matrix ultrasonic speaker)*(39kHz + 41kHz)*(Surveillance camera focal length variable + Laser range finder variable)*(Power amplifier variable)

Function equation 1: F(x) = QKD Key(QRNG)

Function equation 2: F(x) = DATA RECORDER Key(QRNG+PRNG)

Function equation 3: F(x) = DATA STORAGE Key(QRNG+PRNG)

In one embodiment,

Numbers 1 (39kHz), 2 (41kHz), 3 (39.5kHz), and 4 ( In the quad ultrasonic speaker consisting of 40.5kHz) ultrasonic speakers,

When performing super-directional broadcasting to a short-distance target point at the first distance (within 10M), the first applied (odd-numbered) ultrasonic speakers are applied no. 1 and 2, and then the 3rd and 4th ultrasonic speakers (even-numbered/sensor module) are applied. Apply in rotation (prevent intensive use of only one ultrasonic speaker)

When performing super-directional broadcasting at a mid-range target point at the second distance (within 10~50M), quad ultrasonic speakers No. 1~4 are applied.

When performing super-directional broadcasting at a long-distance target point of the third distance (50M or more), increase the volume by increasing the power amplifier output of the quad ultrasonic speaker, or use 3×3 or more parallel (matrix) ultrasonic speakers. Apply.

By applying a single ultrasonic speaker or a dual ultrasonic module, a quad ultrasonic speaker with a frequency difference of 1kHz to 2kHz is applied.

In one embodiment,

As shown in equation 1 above, encryption/decryption is performed using the QRNG (Quantum Random Number Generator) quantum random number seed quantum key in the quantum communication QKD (Quantum Key Distribution) section.

As shown in equation 2 above, the captured video is encrypted/decrypted and stored using PRNG (Program Random Number Generator) and QRNG (Quantum Random Number Generator) Hybrid-Random Number Seed Key (Hybrid-QUANTUM Key).

As shown in Function Equation 3 above, data is encrypted/decrypted and stored using PRNG (Program Random Number Generator) and QRNG (Quantum Random Number Generator) Hybrid-QUANTUM Key.

FIDO2 (Fast IDentity Online 2) is applied to Log IN/OUT when connecting to servers and storage devices.

In one embodiment,

When generating a cancer/decryption key using only a random positive random number seed, cancer/decryption is not possible unless the cancer/decryption key is known.

When generating an encryption/decryption key using a pseudorandom number seed generated by a program random number generator (PRNG) using an operator or various known key generation methods, the greater the number of terminals or key generation methods, the more important it is to identify program regularity. It becomes easy and becomes vulnerable to hacking attacks.

When generating an encryption/decryption key using a random positive random number seed and a pseudorandom number seed operator or various known key generation methods, when the pseudorandom number seed and key generation method are known. Encryption/decryption keys can be created.

In the case above, security is high because the key is generated using a random quantum random number seed without regularity each time the terminal and key are generated.

Function equation 1: F(x) = QKD Key(QRNG)

Function equation 2: F(x) = DATA RECORDER Key(QRNG+PRNG)

Function equation 3: F(x) = DATA STORAGE Key(QRNG+PRNG)

As shown in equation 1 above, a quantum key is generated using a QRNG (Quantum Random Number Generator) quantum random number seed in the quantum communication QKD (Quantum Key Distribution) section.

As shown in equation 2 above, the captured video from the surveillance camera is encrypted/decrypted and stored using a hybrid-QUANTUM key that combines a PRNG (Program Random Number Generator) and QRNG (Quantum Random Number Generator).

As shown in equation 3 above, the data is encrypted/decrypted and stored by generating a hybrid-QUANTUM key using PRNG (Program Random Number Generator) and QRNG (Quantum Random Number Generator) operators or a known key generation method. .

FIDO2 (Fast IDentity Online 2) is applied to Log IN/OUT when connecting to servers and storage devices.

As an example,

The MCU (Main Control Unit) inside the edge server, which includes a security module equipped with a QRNG (Quantum Random Number Generator) Chip, generates a pseudorandom number seed (PRNG) through a PRNG (Program Random Number Generator) program that generates the same pseudorandom number seed. Seed) PRN (Program Random Number) is generated and quantum random number seed QRN (Quantum Random Number) is generated and received through the QRNG Chip inside the security module.

The MCU inside the edge server generates an encryption/decryption key by calculating the PRN seed key and QRN seed key using the function F(x) = DATA RECORDER Key(QRNG+PRNG).

For example, there have been classical methods such as EX-OR and EX-AND for calculating PRN seed key random numbers and QRN seed key random numbers.

In the case above, if you know the PRN seed key random number and operators such as EX-AND, you can know the QRN seed key random number and generate a decryption key, and different keys can be generated through random irregular QRN seed key random numbers.

This is why conventional encryption programs can be hacked by interpreting the regularity of PRNG.

The operator applies various known encryption methods such as conventional hash functions and AES.

The MCU inside the edge server encrypts the video data captured by the surveillance camera with an encryption/decryption key and stores it in the storage device.

Crime prevention CCTV or security light integrated black box type CCTV has a support of 4m, 5m, and 6m, and a crime prevention camera is attached to each upper floor.

In the case of streetlight arms, a security camera is attached at a height of about 5.7m.

The video emergency bell is a combination of a small camera and an emergency bell and is installed between 1.5m and 3m.

Although the Integrated Crime Prevention Center recommends that one control agent monitor video footage from surveillance cameras of 50 or fewer cameras, it is easy to find cases where more cameras are being monitored in the field.

Therefore, it is possible to intensively monitor event videos through various intelligent analyzes such as abnormal sound sources such as "Please help me" and recorded videos, such as collapse, merger/collection, weapon object recognition, and abnormal unexpected behavior analysis.

As a minimum, the video footage from surveillance cameras captured in accordance with the present invention must be processed from at least 6 surveillance cameras, including 1 pan/tilt camera, 4 fixed cameras, and 1 to 4 fisheye cameras.

Rather than processing individual images from IP cameras at the integrated crime prevention center, it is more efficient to transmit the integrated images pre-processed by the local edge server to the integrated crime prevention center and store them in large capacity storage for 30 days or less, and as in the present invention, high-definition 6 ~ The technical task of the present invention is to store 9 individual videos on a local edge server for 30 days and transmit the integrated video without disruption to monitoring to the integrated crime prevention center, or to transmit one integrated video and the main camera video. .

The present invention applies a conventionally known method in which an event image selected by various known methods such as abnormal sound source and object behavior analysis pops up on a monitor and is monitored by a monitor.

However, with the specialized technology of the present invention, 1 to 2 compressed images are normally transmitted, but when selected as an event video, augmented reality includes images captured with an eye-level camera through the monitor's individual monitor under the control of the monitor. It is characterized by display through video.

Through OTP QUANTUM KEY authentication, the local edge server receives air raid/disaster risk/disaster alert/nurturing/TTS broadcast data issued from the civil defense alarm control center or disaster situation room, and uses its own 20W or more amplifier-integrated speaker. broadcast through

In the present invention, in addition to the video captured from a height of 4 to 6 m, 360-degree shooting is performed from a height of 1.5 m to 3 m to prevent blind spots around the CCTV pole.

As described above, structural stability is increased because the arm is not required or can be short to prevent blind spots around the support.

Create a physically unclonable private key (PRIVATE KEY) using a PUF (Physically Unclonable Function) Chip or eFUSE System On Chip.

It is characterized by encrypting unique biometric information with a public key generated through an unpredictable QRNG (Quantum Random Number Generator) Chip through an easy-to-carry, small USB fingerprint recognition device.

A unique PRIVATE KEY through the PUF (Physically Unclonable Function) Chip, which is a physically unique chip that cannot be copied, or eFUSE, first developed by IBM, and the ultra-small quantum random number generator QRNG (Quantum Random Number Generator) developed by SK Telecom and ID Quantique SA. FIDO authentication based on QUANTUM public key (PUBLIC KEY) that encrypts biometric information such as fingerprint using OTP QUANTUM KEY (One Time Password QUANTUM Key) generated through SSL VPN-based such as AES 256, AES 512, SHA-256, ARIA, etc. A quantum communication network is applied through a quantum security platform (Quantum-Platform) using hybrid quantum communication section encryption or quantum key distribution QKD (Quantum Key Distribution).

This will be explained through an example.

As an example, to briefly explain, the first PIR sensor and the second PIR sensor are ordinary PIR sensors, but the first PIR sensor supplies a positive voltage of a square wave, and the second PIR sensor supplies a negative voltage of a square wave. (In reality, Depending on the application of the sensor's response time, an overlap of square waves occurs as shown in Figure 1.)

The following applies to night mode.

First state: In the case of the first state (no human body detected) that is in a spontaneous polarization state through the first PIR sensor (pyroelectric infrared (PIR) sensor), the lighting is turned off.

Second state: When the first PIR sensor detects a moving human body in the second state (dynamic human body) in a state of despontaneous polarization, the lighting is turned on. (At this time, the driving power of the second PIR sensor is turned off).

Third state: In the third state (human body stops or passes) that returns to the spontaneous polarization state of the first PIR sensor, the lighting remains ON for the administrator input time (sensor response time of about 10 seconds or more) and the second PIR sensor The driving power is supplied by turning the driving power ON.

Fourth state: When the 1st PIR sensor is in spontaneous polarization state and the 2nd PIR sensor is in a despontaneous polarization state, the lighting is kept ON in the 4th state (human body stopped) or when the 1st PIR sensor and the 2nd PIR sensor are in a spontaneous polarization state. Turn off the lighting in the first state (no human body detection).

As an example, the second PIR sensor can be replaced with an interrupt register ON/OFF control using a shutter-type chopper. (In the present invention, it is a known technology and is excluded from the scope of the claims.)

It is a crime prevention CCTV surveillance camera system capable of super-directional broadcasting that minimizes noise complaints. It improves clarity by controlling the ultrasonic speaker module according to target settings through surveillance cameras and changes in target distance.

It has the effect of improved performance with enhanced security for surveillance without blind spots and distortion and effective dissemination of civil defense/disaster warnings.

Installation is simple thanks to the smart emergency bell, which has all the equipment, functions and additional features required for a conventional crime prevention CCTV system, excluding security cameras and arms, integrated into the emergency bell box.

The top camera (eye-level camera) installed on the top of the enclosure is an ultra-low-level surveillance camera that takes color photos of the general visible light area. It controls lighting dimming through the first and second PIR sensors to prevent color distortion of the original captured image. Save it as a black box without any data.

1 is an explanatory diagram for understanding the invention

It consists of an edge server, sensor unit (multi-spontaneous polarization sensor), surveillance camera, and broadcasting device.

The sensor unit (multi-spontaneous polarization sensor), unlike the dual or quad pyroelectric infrared sensor (PIR sensor; Passive InfraRed Sensor) that detects different spaces, is a power supply module on a single board inside a single housing. A first pyrotypical infrared sensor detection module and a second pyrotypical infrared sensor detection module are disposed to detect a human body within the same space. Two or more PIR sensor modules are installed on one board to detect the same space.

The edge server supplies initial driving power to the first pyroelectric infrared sensor through the power supply unit, and is initialized in the equilibrium stage where the spontaneous polarization equilibrium state is maintained.

After the initialized equilibrium stage, the edge server detects a moving body when the first pyrotypical infrared sensor switches from a spontaneous polarization equilibrium state to an unbalanced state, and when a human body detection event signal occurs, the edge server transmits the second pyrotypical infrared ray through the power supply unit. Supply driving power to the sensor.

Since the PIR sensor receives driving power and requires time for stabilization, it is a moving body detection stage that recognizes the spontaneous polarization unbalanced state even if it switches from the spontaneous polarization unbalanced state to the balanced state during the stabilization time of the administrator input value programmed into the edge server. is needed.

As an example,

If the stabilization time of the administrator input value programmed into the edge server is set to 60 seconds, even if the first pyroelectric infrared sensor switches from the spontaneous polarization unbalanced state to the balanced state within 60 seconds, spontaneous polarization occurs within 60 seconds. This is the moving body detection stage where an imbalance is recognized.

For example, the time of 60 seconds varies depending on the administrator input time (stabilization time) entered into the program on the edge server.

In addition, if the above 60 seconds is divided between the 2-1 PIR sensor and the 2-2 PIR sensor instead of just one 2nd PIR sensor to reduce the error, it can be divided into 30 seconds + 30 seconds.

That is, the first PIR sensor is used for the purpose of detecting a moving body, and the 2-1 PIR sensor and the 2-2 PIR sensor are used for the purpose of detecting a stationary human body and reducing the stabilization time error.

In the moving body detection step, moving body detection event data is generated and provided to terminal devices (operation devices such as surveillance cameras, broadcasting devices, automatic control devices, lighting, and distribution boards).

After the moving body detection step, the edge server maintains the spontaneous polarization equilibrium state of the first PIR sensor and the second PIR sensor by cutting off the driving power to the second PIR sensor in a state where there is no moving body or stationary human body inside the detection area. and returns to the initial equilibrium stage to generate event data that is judged to be moving the body, or when the edge server switches from the spontaneous polarization equilibrium state to the unbalance state when the second PIR sensor is driven and a human body detection event signal is received, the human body is stationary. This is an analysis stage in which the driving power to the second PIR sensor is cut off and switched to the moving body detection stage.

That is, a stationary human body is detected using the driving time difference between the first PIR sensor and the second PIR sensor.

As shown in Figure 1, when power is supplied in a square wave with overlapping stabilization times, or when an imbalance occurs in the PIR sensor, it is recognized as an unbalanced state even if it returns to the equilibrium state, and during the stabilization time, power is supplied in the form of an overlapped square wave with overlapping power supply times. supply.

The edge server is a multi-automation system applied to crime prevention surveillance cameras and broadcasting devices, characterized by turning on lights and storing images with event masking tags inserted through surveillance cameras during the moving body detection step and broadcasting event messages stored inside the broadcasting devices. It is a crime prevention and disaster prevention technology using a polarization sensor.

In one embodiment,

It consists of an edge server, sensor unit, power supply unit, surveillance camera, and broadcasting device.

The sensor unit is characterized in that the first PIR sensor that detects a moving human body and the second PIR sensor that detects a stationary human body are arranged in succession to detect the moving or stationary state of the human body within the same space.

The edge server supplies driving power to the first PIR sensor through the power supply unit and is in the equilibrium stage to maintain the spontaneous polarization equilibrium state.

After the balancing step, when the first PIR sensor switches from the spontaneous polarization balanced state to the unbalanced state and a human body detection event signal occurs, the edge server receives the spontaneous polarization unbalanced human body detection event signal and drives the second PIR sensor through the power supply unit. This is the human body detection stage that supplies power.

After the human body detection step, the edge server is in a maintenance phase to maintain the human body detection step.

After the maintenance step, if the first and second PIR sensors are driven and maintain the spontaneous polarization equilibrium state for more than the administrator input time, the edge server cuts off the driving power to the second PIR sensor and switches to the balance step or the edge server When the second PIR sensor is driven and switched from the spontaneous polarization balanced state to the unbalanced state and a human body detection event signal is received, the system switches to the maintenance phase or human body detection phase using the driving time difference of the first and second PIR sensors. This is a stationary human body detection step characterized by detecting moving objects and stationary human bodies.

After the stationary human body detection step, crime prevention through a multi-spontaneous polarization sensor applied to a crime prevention surveillance camera and broadcasting device, characterized in that event video is captured through a surveillance camera and broadcasting an event message stored inside the broadcasting device during the maintaining step. ·It is a disaster prevention technology method.

In one embodiment,

It consists of a surveillance camera or broadcasting device that operates according to human body detection event data through a multi-spontaneous polarization sensor that detects both moving and stationary human bodies.

The multi-spontaneous polarization sensor consists of a moving body detection PIR sensor that detects a moving body, one or more human body detection PIR sensors that detect a stationary body, a main control unit composed of a microprocessor, and a power supply unit.

The main control unit continuously supplies driving power to the moving body detection PIR sensor through the power supply unit to provide moving object event data that detects a moving body, and the main control unit supplies square wave driving power as shown in Figure 1 to one or more human body detection PIR sensors through the power supply unit. This generates stationary human body event data that detects a stationary human body.

The main control unit supplies the moving body event data and stationary body event data to a surveillance camera or broadcasting device.

The surveillance camera stores event shooting images according to receipt of moving body event data or stationary body event data; or

The broadcasting device is a crime prevention and disaster prevention technology method through a multi-spontaneous polarization sensor applied to surveillance cameras and broadcasting devices, which is characterized by broadcasting stored broadcasting data according to the reception of moving body event data or stationary body event data.

In one embodiment,

It consists of a surveillance camera, broadcasting device, or automatic control device that receives human body detection event data through a multi-spontaneous polarization sensor that detects even a stationary human body.

The multi-spontaneous polarization sensor consists of a moving body detection PIR sensor that detects a moving body, one or more human body detection PIR sensors that detect a stationary body, a main control unit composed of a microprocessor, and a power supply unit.

The main control unit supplies driving power to the moving object detection PIR sensor through the power supply unit to detect moving objects and generate moving object event data.

The main control unit supplies square wave driving power to one or more human body detection PIR sensors through the power supply unit to detect a stationary human body and generate stationary human body event data.

The main control unit supplies moving body event data and stationary body event data to a surveillance camera, broadcasting device, or automatic control device.

Surveillance cameras store event shooting images according to the reception of moving body event data or stationary body event data, or broadcasting devices automatically control stored broadcast data through broadcasting or automatic control devices according to reception of moving body event data or stationary body event data. This is a crime prevention and disaster prevention technology method using multi-spontaneous polarization sensors applied to surveillance cameras, broadcasting devices, and automatic control devices.

In one embodiment,

The automatic control device is an automatic control of smart building lighting and access control, which is characterized by automatically controlling smart building lighting and access control according to the reception of moving body event data or stationary body event data.

In one embodiment,

Security surveillance cameras, thermal imaging cameras, and super-directional ultrasonic speakers are mounted on a pan-tilt unit and are installed on the top of a pole or connected to an arm.

The smart emergency bell consists of a broadcasting device, a push button, an eye-level or top camera, an edge server, a directional audible frequency speaker, and a multi-spontaneous polarization sensor inside the enclosure and is connected to the middle of the pole.

The smart emergency bell is equipped with one or more eye-level cameras that monitor 90 to 360 degrees at the top of the box, allowing accurate capture of a person's face.

The smart emergency bell is installed by inserting it into the front of the enclosure, connected to the outside with a control line, or has a push button installed on one or more of them by using unlicensed frequency wireless, etc. When the push button is activated, the internal edge server makes a voice or video call with the control center server. Connect the furnace.

The edge server is composed of a civil defense/disaster warning security module and video storage memory, and the civil defense/disaster warning security module is composed of a security CPU and a physical ON/OFF switch dedicated to security access.

After authenticating with the control center server and OTP (One-Time Programmable), the security CPU switches the physical ON/OFF switch dedicated to security access to the ON switch connection and broadcasts data such as MMS text received from the control center server inside the integrated crime prevention center to the broadcasting device. It broadcasts TTS (text-to-speech) through a directional audible frequency speaker.

Alternatively, when the security CPU receives broadcast data such as air raid/disaster risk siren MMS data received from the control center server inside the integrated crime prevention center, it turns on the physical ON/OFF switch dedicated to security access after OTP (One-Time Programmable) authentication. Through connection switching control, siren data is broadcast to a directional audible frequency speaker through a broadcasting device.

Directional audible frequency speakers are the most commonly used speakers that use regular permanent magnets and coil vibrations to convert broadcast data into the audible frequency band.

The edge server detects a moving or stationary body through a multi-spontaneous polarization sensor and stores the event data by masking it in the image captured by the eye-level camera according to the reception of the moving or stationary body event data.

Masked captured images are stored in the image storage memory, allowing quick retrieval and recording only when a human body is detected.

Through the control center server inside the integrated crime prevention center, monitors monitor and monitor with crime prevention surveillance cameras and thermal imaging cameras.

The control center server sets the broadcast target through pan-tilt control, and broadcasts to the target only through a super-directional ultrasonic speaker through a smart emergency bell internal broadcasting device. A broadcasting device capable of converting to a long-distance super-directional ultrasonic warning broadcast. It is an integrated crime prevention system with a surveillance camera for setting warning broadcast targets.

In one embodiment,

Calculation formula "(Single/Dual ultrasonic speaker + Quad ultrasonic speaker + Matrix ultrasonic speaker)*(39kHz + 41kHz)*(Surveillance camera focal length variable + Laser rangefinder variable)*(Power amplifier variable)" Apply.

Numbers 1 (39kHz), 2 (41kHz), 3 (39.5kHz), and 4 ( In the quad ultrasonic speaker consisting of 40.5kHz) ultrasonic speakers,

When performing super-directional broadcasting to a short-distance target point at the first distance (within 10M), the first applied (odd-numbered) ultrasonic speakers are applied no. 1 and 2, and then the 3rd and 4th ultrasonic speakers (even-numbered/sensor module) are applied. Apply in rotation (prevent intensive use of only one ultrasonic speaker)

When performing super-directional broadcasting at a mid-range target point at the second distance (within 10~50M), quad ultrasonic speakers No. 1~4 are applied.

When performing super-directional broadcasting at a long-distance target point of the third distance (50M or more), increase the volume by increasing the power amplifier output of the quad ultrasonic speaker, or use a 3×3 to N×N parallel (matrix) ) Apply an ultrasonic speaker.

By applying a single ultrasonic speaker or a dual ultrasonic module, a quad ultrasonic speaker with a frequency difference of 1kHz to 2kHz is applied.

In other words, (Single/Dual ultrasonic speaker + Quad ultrasonic speaker + Matrix ultrasonic speaker) variable is applied according to the target distance according to the (surveillance camera focal length + laser range finder) variable and (39kHz ~ 41kHz) A variable is selected and the final (power amplifier variable) output variable is applied.

In one embodiment,

Function equation 1: F(x) = QKD Key(QRNG)

Function equation 2: F(x) = DATA RECORDER Key(QRNG+PRNG)

Function equation 3: F(x) = DATA STORAGE Key(QRNG+PRNG)

As shown in equation 1 above, encryption/decryption is performed using the QRNG (Quantum Random Number Generator) quantum random number seed quantum key in the quantum communication QKD (Quantum Key Distribution) section.

As shown in equation 2 above, the captured video is encrypted/decrypted and stored using PRNG (Program Random Number Generator) and QRNG (Quantum Random Number Generator) Hybrid-Random Number Seed Key (Hybrid-QUANTUM Key).

As shown in Function Equation 3 above, data is encrypted/decrypted and stored using PRNG (Program Random Number Generator) and QRNG (Quantum Random Number Generator) Hybrid-QUANTUM Key.

FIDO2 (Fast IDentity Online 2) is applied to Log IN/OUT when connecting to servers and storage devices.

In one embodiment,

When generating a cancer/decryption key using only a random positive random number seed, cancer/decryption is not possible unless the cancer/decryption key is known.

When generating an encryption/decryption key using a pseudorandom number seed generated by a program random number generator (PRNG) using an operator or various known key generation methods, the greater the number of terminals or key generation methods, the more important it is to identify program regularity. It becomes easy and becomes vulnerable to hacking attacks.

When generating an encryption/decryption key using a random positive random number seed and a pseudorandom number seed operator or various known key generation methods, when the pseudorandom number seed and key generation method are known. Encryption/decryption keys can be created.

In the case above, security is high because the key is generated using a random quantum random number seed without regularity each time the terminal and key are generated.

As shown in equation 1 above, a quantum key is generated using a QRNG (Quantum Random Number Generator) quantum random number seed in the quantum communication QKD (Quantum Key Distribution) section.

As shown in equation 2 above, the captured video from the surveillance camera is encrypted/decrypted and stored using a hybrid-QUANTUM key that combines a PRNG (Program Random Number Generator) and QRNG (Quantum Random Number Generator).

As shown in equation 3 above, the data is encrypted/decrypted and stored by generating a hybrid-QUANTUM key using PRNG (Program Random Number Generator) and QRNG (Quantum Random Number Generator) operators or a known key generation method. .

FIDO2 (Fast IDentity Online 2) is applied to Log IN/OUT when connecting to servers and storage devices.

As an example,

The MCU (Main Control Unit) inside the edge server, which includes a security module equipped with a QRNG (Quantum Random Number Generator) Chip, generates a pseudorandom number seed (PRNG) through a PRNG (Program Random Number Generator) program that generates the same pseudorandom number seed. Seed) PRN (Program Random Number) is generated and quantum random number seed QRN (Quantum Random Number) is generated and received through the QRNG Chip inside the security module.

The MCU inside the edge server generates an encryption/decryption key by calculating the PRN seed key and QRN seed key using the function F(x) = DATA RECORDER Key(QRNG+PRNG).

For example, there have been classical methods such as EX-OR and EX-AND for calculating PRN seed key random numbers and QRN seed key random numbers.

In the case above, if you know the PRN seed key random number and operators such as EX-AND, you can know the QRN seed key random number and generate a decryption key, and different keys can be generated through random irregular QRN seed key random numbers.

This is why conventional encryption programs can be hacked by interpreting the regularity of PRNG.

The operator applies various known encryption methods such as conventional hash functions and AES.

The MCU inside the edge server encrypts the video data captured by the surveillance camera with an encryption/decryption key and stores it in the storage device.

In one embodiment,

The main control unit composed of a microprocessor program controls the power supply unit to control the power supplied to the first PIR sensor and the second PIR sensor, and controls lighting by detecting a moving human body and a stationary human body.

The main control unit always supplies driving power to the first PIR sensor at all times.

The main control unit supplies driving power to the second PIR sensor according to the program control of the main control unit when a spontaneous polarization unbalanced human body detection event signal occurs, which changes the spontaneous polarization balance state of the first PIR sensor into an unbalanced state due to detection of a moving body.

When the first PIR sensor switches from the spontaneous polarization balanced state to the unbalanced state and receives a human body detection event signal, the main control unit turns on 100% full lighting for the first administrator input time (for example, 100 seconds).

With the full lighting turned on, the main control unit turns on the dimming lighting (for example, 70% of the rated current) after the first manager input time (for example, 100 seconds) ends for the second manager input time (for example, 60 seconds). The basic control is to turn the light on and then turn it off, as shown below, but spontaneous polarization occurs from one or more of the first PIR sensor or the second PIR sensor within the second administrator input time (for example, 60 seconds) while the dimming light is turned on. When a spontaneous polarization imbalance human body detection event signal that switches from a balanced state to an unbalanced state is received, 100% full lighting is returned to the state of turning on for the first administrator input time (for example, 100 seconds).

As an example,

(And/and) The main control unit supplies driving power to the second PIR sensor immediately after the first manager input time (for example, 100 seconds) ends.

(And/and) Switching from the spontaneous polarization equilibrium state to the unbalanced state from any one or more of the first PIR sensor or the second PIR sensor within the second administrator input time (for example, 60 seconds) while the dimming light is turned on. When a spontaneous polarization unbalanced human body detection event signal is received, the full lighting is turned on at 100%, but the first PIR sensor and the second PIR sensor are in spontaneous polarization balance until the second administrator input time (for example, 60 seconds) has elapsed. It is an automatic smart building lighting control that turns off the lights when in a certain state.

As an example,

(And/and) The main control unit supplies driving power to the second PIR sensor (for example, at -60 seconds/40 seconds) before the end of the first manager input time (for example, 100 seconds).

(And/and) In the spontaneous polarization equilibrium state from any one or more of the first PIR sensor or the second PIR sensor within the second administrator input time (for example, between 40 seconds and 160 seconds) while the dimming light is turned on. When receiving a spontaneous polarization unbalanced human body detection event signal that switches to an unbalanced state, the full lighting, which is turned on at 100%, is turned on, but the first PIR sensor and the second PIR sensor are turned on until the second administrator input time (for example, 160 seconds) has elapsed. This is an automatic smart building lighting control that turns off the lights when the PIR sensor is in the spontaneous polarization equilibrium state.

In one embodiment,

The main control unit controls the power supply unit to supply driving power to the first PIR sensor, and when the spontaneous polarization imbalance of the first PIR sensor occurs, it supplies driving power to the second PIR sensor.

When the first PIR sensor switches from the spontaneous polarization equilibrium state to the unbalanced state (for example, at 0 seconds), the main control unit turns on the full lighting for the first manager input time (for example, 0 seconds to 60 seconds). .

The main control unit turns on the full lighting after the first administrator input time (for example, 0 seconds to 60 seconds) and turns on the dimming lights for the second administrator input time (for example, 60 seconds to 100 seconds) and then turns them off. .

The main control unit supplies driving power to the second PIR sensor (at 60 seconds) after the first administrator input time (at 60 seconds) (or supplies driving power at 10 seconds).

If a spontaneous polarization imbalance occurs from one or more of the first PIR sensor or the second PIR sensor while the dimming light is turned on (for example, at 60 to 100 seconds), the first administrator input time (60 seconds) , that is, full lighting is turned on for 100 seconds to 160 seconds), but if the first PIR sensor and the second PIR sensor are in spontaneous polarization equilibrium until the second administrator input time (e.g., 60 seconds to 100 seconds) It is an automatic smart building lighting control that turns off dimming lights (for example, at 100 seconds).

In one embodiment,

The main control unit constantly supplies driving power to the first PIR sensor through the power supply unit and supplies driving power to the second PIR sensor according to the spontaneous polarization state of the first PIR sensor,

When the first PIR sensor switches from a spontaneous polarization equilibrium state to an unbalanced state (for example, at 500 seconds from the first 0 seconds) and receives a human body detection event signal (for example, at 500 seconds), the main control unit detects 100% The full lighting is turned on for the administrator input time (for example, 100 seconds).

With the full lighting turned on, the main control unit turns on the full lighting and simultaneously applies driving power to the second PIR sensor before the end of the administrator input time (for example, 500 to 600 seconds). Time) If the first PIR sensor and the second PIR sensor are in spontaneous polarization equilibrium even after the administrator input time ends (for example, at 600 seconds) after supply, the lights are turned off, but the lights are turned off after the administrator input time ends (for example, at 500 seconds to 600 seconds). ) If a spontaneous polarization imbalance human body detection event signal is received from any one or more of the first PIR sensor or the second PIR sensor while the driving power is supplied to the second PIR sensor, full lighting is turned on for an additional 100 seconds. This is an automatic control of smart building lighting that performs automatic control that is fed back to the control of the above state (eg, 500 seconds) to keep the light on or to turn it back on when the administrator's input time expires (eg, 600 seconds) and the light is turned off.

Claims (3)

A crime prevention surveillance camera and a super-directional ultrasonic speaker are mounted on a pan-tilt unit and installed on the top of the pole;
The smart emergency bell consists of a broadcasting device, a push button, a top camera, an edge server, a directional audible frequency speaker, and a multi-spontaneous polarization sensor inside the enclosure and is connected to the middle of the pole;
The smart emergency bell is equipped with one or more top cameras that monitor 90 to 360 degrees at the top of the hull;
When the smart emergency bell's push button is activated, the edge server connects to the control center server and a call path;
The edge server broadcasts the broadcast data received from the control center server inside the integrated crime prevention center to a directional audible frequency speaker through a broadcasting device; or
When the edge server receives air raid/disaster risk siren data from the control center server inside the integrated crime prevention center, it broadcasts the siren data to a directional audible frequency speaker through a broadcasting device;
The multi-spontaneous polarization sensor is a multi-spontaneous polarization sensor that detects the human body within the same space by placing a power supply module, a first pyroelectric infrared sensor detection module, and a second pyroelectric infrared sensor detection module on a single board inside a single housing. ;
The edge server supplies the initial driving power to the first pyroelectric infrared sensor through the power supply unit, initializes it to an equilibrium stage in which the spontaneous polarization equilibrium state is maintained, and after the initialized equilibrium stage, the edge server moves the moving body of the first pyroelectric infrared sensor. When the spontaneous polarization is switched from the balanced state to the unbalanced state by detecting and a human body detection event signal is generated, the edge server supplies driving power to the second pyroelectric infrared sensor through the power supply unit, Using the driving time difference of the pyroelectric infrared sensor, as a stationary human body is detected, the event capture image of the upper camera is classified according to the occurrence of moving body event data or stationary human event data, and the moving body event is masked and stored in the moving body event data;
The control center server inside the integrated crime prevention center monitors crime prevention surveillance cameras in real time;
The super-directional ultrasonic speaker consists of a quad ultrasonic speaker consisting of 1st (39kHz), 2nd (41kHz), 3rd (39.5kHz), and 4th (40.5kHz) ultrasonic speakers.
When performing super-directional broadcasting to a short-distance target point within 10m, the first ultrasonic speakers are applied no. 1 and 2, and then the ultrasonic speakers no. 3 and 4 are applied in rotation;
When performing super-directional broadcasting to a mid-distance target point within 10~50M, quad ultrasonic speakers No. 1~4 are applied;
When performing super-directional broadcasting to a long-distance target point over 50m, the power amplifier output of the quad ultrasonic speaker is increased and applied;
The control center server is a crime prevention surveillance camera system that sets a broadcast target through pan-tilt control and then broadcasts it to a super-directional ultrasonic speaker through a smart emergency bell internal broadcasting device. delete delete