China is an ancient civilization with a history of 5000 years, and its long history has created a large number of cultural relics. Museums are places to collect, protect, research, display and publicize relevant cultural relics. They condense the essence of history, and are important places for people to talk with history, inherit and carry forward fine traditions, and accept the baptism of civilization. The cultural relics collected and protected in the museum are non renewable, and many of them are isolated items. The special quantity left behind and their historical, cultural, artistic and other characteristics determine their immeasurable value. Therefore, the safety protection of museum cultural relics is particularly important.

The theft of cultural relics is mostly related to loopholes in protection measures, and the security requirements of museums are different from other fields. How to develop a practical and effective security system based on the specific needs of cultural and museum security has become one of the key factors in cultural relic protection. With the continuous deepening of the market economy, the theft and anti theft struggle of cultural relics are becoming increasingly fierce. On the other hand, once cultural relics are stolen or damaged, it is easy to cause significant social reactions and value losses. This also urgently requires the establishment of an effective museum security alarm system, combined with "civil defense", "physical defense", and "technical defense", to conduct comprehensive and real-time monitoring of the prevention area, effectively create a good visiting environment, protect the legitimate rights and interests of tourists, and promote the healthy development of museums.

1、 Design principles

The following principles were mainly followed in the design of this project:

Safety and reliability: In the design of system defense, it is necessary to adapt to local conditions and try to achieve deep protection as much as possible to achieve a tight and flawless defense effect. Design strictly in accordance with relevant national regulations and the requirements of standards such as GTA/T75-94 for safety and prevention engineering procedures.

Progressiveness: In the process of system design, fully consider the development of modern electronic technology, the current development level and advanced experience at home and abroad, and ensure that the system is at the leading level in China.

Economy: When configuring the system, fully utilize the user's investment and the performance price ratio of the equipment. When expanding the system, fully utilize the existing equipment of the bank to effectively protect the user's investment.

Redundancy: Regardless of any project, we always take a long-term perspective to make the system scalable and capacity expandable

Charge. The software and hardware in this system are designed with modularity, and the system is flexibly organized according to specific needs, so it has excellent scalability, ensuring that when user requirements change, the original system structure can be met by adding relevant equipment.

Openness: Designed based on existing mature products, while also considering the current situation of the surrounding information and communication environment and the development trend of technology, it can achieve linkage between fire protection, monitoring, and spotlight systems.

2、 Working principle

ShunAnju Senior Technical Engineer said:

The anti-theft alarm signals in this project are all transmitted using RVVS twisted pair cables, which can more accurately and quickly transmit alarm information and interact with other security subsystems; When an alarm occurs, it can automatically link electronic maps and video pop ups, and the alarm information can be directly uploaded to superiors.

Adopting a combination of "human defense", "physical defense", and "technical defense" to achieve perfect indoor prevention.

The front-end detector transmits information back to the monitoring center through a 485 twisted pair signal line, and then combines the linkage module with the bus host to respond to the alarm. When setting up defenses, if a suspect steals by disguising themselves, an alarm will be triggered as soon as they enter the detection area. In the event of the dismantling of the internal and external cooperation host and illegal intrusion by external personnel, service personnel can detect illegal behavior through infrared detectors (which can be set as emergency zones), and infrared alarm information will also be uploaded to the center.

At the same time, when the displacement vibration detector detects that the position of the displayed cultural relics has been moved, it can also pop up corresponding alarm information through the host reporting to the central platform.

When the host receives an alarm message, the backend will link the corresponding video information, and the management software will also record the location of the alarm and pop up a bitmap on the software. Service personnel can quickly handle police incidents through video linkage and pop-up software map points, effectively preventing incidents from happening.

3、 Service Center Alarm Reception Process

1. When receiving an alarm message and verifying it with the front-end user, and confirming it as a false alarm, register the processing result.

2. If it cannot be determined whether there is a false alarm, the alarm information will be preprocessed first, and the alarm will be notified. After the police arrive at the scene for investigation, if it is confirmed to be a false alarm, it will be reported back to the receiving police officer for false alarm registration, and the alarm record will be filled out.

3. When the emergency personnel confirm that there is indeed an alarm situation at the front end of the scene, they will notify the user to arrive at the scene, report to the public security, insurance and other departments based on the user's opinions and loss situation, and the public security will intervene to handle it, investigate the property loss situation, fill out the emergency record, and register the true occurrence of this alarm situation in the alarm center; Inspect the set position and working status of intrusion detectors according to the prescribed time program every day to ensure they are functioning properly.

　　

System composition:

This system mainly consists of front-end detectors, back-end alarm hosts, and bus expansion devices.

The following is an example equipment list:

Front end devices:

Indoor alarm:

AS-910DT dual detector:

The dual infrared+microwave human body induction detector and the triple detector are installed in the entrance and exit area. Once an illegal intruder is detected, an alarm message will be immediately issued to inform of the alarm situation.

AS-909 Infrared Curtain Detector:

Install an infrared curtain detector at a 90 degree angle to the left/right corner above the curtain, and output an alarm signal when illegal personnel are detected.

AS-456 Glass Shatter Detector:

Install a glass breakage detector at a 90 degree angle to the left/right corner above the glass, and output an alarm signal when a high-frequency sound signal is detected when glass breakage is detected.

AS-603PC+Smoke Detector:

By monitoring the concentration of smoke to trigger an alarm, fires can be avoided in a timely manner.

AS-971 V2 vibration detector:

When the position of the displayed cultural relic is vibrated by tapping, the corresponding point can also pop up an alarm message through the reporting center platform on the host.

AS-28 emergency button:

In emergency situations, it can better notify relevant personnel, thereby better protecting its own safety and enabling rapid information transmission and resolution of emergency situations.

Backend devices:

AS-9000IP Large Bus Network Alarm Host:

The host is the core of the system. It is used to receive alarm signals from detectors and provide timely feedback; After receiving the alarm signal, the host will generate a 110 decibel alarm sound, which can be set to dial the alarm number set by the owner.

AS-90 Control Keyboard:

ShunAnju alarm host dedicated keyboard, used for various programming operations and displays, allowing users to perform operations such as arming and disarming, emergency assistance, etc.

AS-103 Indoor Sound and Light Alarm Number:

A warning signal device that sends warning signals to people through sound and various lights.

Bus expansion device:

AS-208 Eight Defense Zone Address Module (used for connecting detectors and hosts at long distances)

AS-08C eight channel linkage module (used for linking electronic maps and surrounding video pop ups)

AS-1202 1/2 485 repeater (for bus branching and distance extension)