ITES China Shenzhen International Industrial Manufacturing Technology and Equipment Exhibition
Countdown24days
2026.3.31-4.3 Shenzhen World Exhibition & Convention Center
Company Introduce
Founded in 2003, Shenzhen Langsong Security Technology Co., Ltd. is a high-tech enterprise specializing in R & D, production and sales of intelligent security products, with a strong R & D, production and quality management team. With years of experience in the security industry, the company serves its customers with high-quality and reliable solutions, and is committed to becoming a technology-based enterprise serving China's security industry. It mainly produces security alarm systems, perimeter infrared detectors, indoor and outdoor infrared detectors, industrial machine tool security gratings, infrared photoelectric switches, reflective sensors, laser radiation, network monitoring equipment and other security equipment. The products of Shenzhen Langsong Company have won a good market in the world, such as the United States, Australia, Turkey and many other countries have been well recognized and sold. The company will continue to provide our sincere service for the needs of customers.
Exhibit brands
Exhibits
Perimeter protection acousto-optic and phonetic infrared wall
Perimeter protection acousto-optic voice infrared wall is an intelligent security product integrating infrared detection, acousto-optic deterrence and voice warning. On the basis of the traditional infrared radiation fence, it integrates the field loudspeaker, which can synchronously send out high-decibel siren and preset warning voice when detecting intrusion, so as to realize the active protection of "detection is alarm, alarm is deterrence". Core technology: The products are installed in pairs (transmitting end and receiving end) to form one or more invisible infrared beam protection walls. By adopting double-beam identification or multi-beam identification technology, only when two or more adjacent infrared rays are blocked at the same time, the alarm will be triggered, which can effectively prevent false alarms caused by small objects such as birds and leaves. Core features: · Sound, light and voice integrated alarm: when the alarm is given, the high-light alarm light of the equipment flashes, and at the same time, the horn will send out a sharp siren sound of more than 90dB and a human voice warning such as "Do not approach", which has a strong deterrent force on the spot. · Strong environmental adaptability: The shell is usually made of waterproof aluminum alloy, which can work stably in the outdoor environment from -30 ℃ to + 70 ℃. · Intelligent anti-false alarm and anti-damage: In addition to double-beam identification, it also has anti-damage functions such as anti-disassembly and anti-cutting of power lines. Once it is maliciously damaged, it will also trigger an alarm. · Convenient installation and debugging: The base often supports 180 ° to 360 ° rotation, which is convenient for fast and accurate alignment of the beam; some models adopt pull-out motherboard design, which is more convenient for maintenance. This mode of "detection + on-site deterrence" is very suitable for scenarios that need to stop intrusion immediately, warn the boundary clearly or make up for the dead corner of surveillance: 1. Civil and commercial perimeter · Scenes: walls of residential quarters, villas, courtyards, schools and warehouses. · Function: When the intruder tries to climb over, the sound and light warning will be issued immediately, which can not only deter his behavior, but also remind the security personnel. 2. Building doors, windows and balconies · Scene: Lower floor windows, balconies, outdoor corridors. · Function: replace the traditional anti-theft net, maintain the beauty of the building, realize invisible protection, and alarm immediately when someone climbs illegally or breaks the window. 3. Special area alert · Scenario: temporary or permanent warning lines in substations, oil fields, dangerous areas in the plant area, etc. · Function: "Power danger, keep away" is clearly warned by voice to realize safety warning. 4. Transport and public safety · Scenario: road intersection, queuing area. · Function: Infrared detection of pedestrians or non-motor vehicles crossing the border, and voice persuasion to reduce the risk of accidents.
Duplex frequency modulation digital pulse infrared barrier
"Duplex FM Digital Pulse Infrared Barrier" is a composite technical term, which integrates many advanced technologies in the current active infrared perimeter protection. Simply put, it is a high-end infrared fence that uses "duplex" communication protocol and "digital FM" technology to modulate infrared beams, thus forming an invisible protective wall. In order to give you a clear understanding of its core, we can break down this compound noun into several key technologies to analyze: 1." Duplex " A "conversation" between a transmitter and a receiver using a duplex communication protocol. This real-time two-way communication enables the system to work continuously and synchronously, which greatly improves the overall stability, reliability and anti-interference ability. 2. "FM Digital" · FM digital: The frequency of the infrared beam emitted by the transmitter can be changed according to the coding law. The receiver only identifies the signal of the corresponding frequency, which can effectively shield the stray light such as sunlight, car lights and the beam crosstalk of adjacent equipment. 3. "Infrared fence" This is the physical form of the device. It consists of a pair of transmitting and receiving rods, each of which has multiple infrared transceivers (such as 4, 6, 8, or 10 beams), forming a parallel, invisible beam protection wall in the air. Advantage · Extremely low false alarm rate: double protection ensures reliability. One is dual-beam recognition (the alarm will be given only when two adjacent beams of light are blocked at the same time) to prevent small objects such as birds and leaves from triggering; the other is advanced modulation technology to resist complex light interference. · Strong environmental adaptability: aluminum alloy shell, with anti-disassembly and anti-shear functions. The protection grade can reach IP55, and it can work all day in the temperature of -30 ℃ to + 70 ℃ and in bad weather such as rain, fog, frost and snow. · Smart and Convenient: · Adaptive synchronization: multiple beams can be automatically synchronized and aligned to simplify debugging. · Multiple alarm modes: supporting synchronous/asynchronous working mode, adjustable alarm trigger time and output mode (normally open/normally closed). · Auxiliary commissioning: LED indicator and buzzer are provided to facilitate field installation and alignment. It is suitable for perimeter protection sites with high requirements for false alarm rate and reliability, such as: · High-end civil and commercial: walls of villas, high-end residential areas, schools and factories. · Critical infrastructure: perimeters of airports, prisons, military facilities, substations. · Special terrain area: alert of open or irregular boundary areas such as river, fish pond, golf course and farm.
Opposite-ray sensor special for ATM protective cabin
The core design goal of the special correlation sensor for ATM protection cabin is to achieve highly concealed, accurate and reliable detection in extremely limited space, mainly used to prevent following, peeping and illegal intrusion, and to ensure user operation safety and privacy. Characteristic · Miniature concealment design: The diameter of the sensor head can be as small as 15 mm, which can be embedded in the protective cabin or ATM frame, and can hardly be detected. · High-precision detection: Most of them are opposite-type, forming one or more invisible light walls on both sides of the protective cabin or inside and outside the window. Some products adopt multi-beam design, which needs to block multiple beams of light at the same time to trigger, effectively preventing false alarms. · Strong environmental adaptability: The working temperature range is usually -25 ℃ to + 55 ℃, which can adapt to indoor and semi-outdoor environment. · Easy to install and integrate: The sensor cable can be cut as required, and the output is the relay dry contact signal, which is easy to link with the door lock, lighting, alarm host and other equipment. · Detection distance: 4-6m, meeting the width of ATM protection cabin or window. · Response time: After the light beam is blocked, the alarm response time is at the level of 50 milliseconds to 0.1 seconds to achieve rapid response. · Working voltage: DC safety voltage, DC9V to DC12V. It is mainly used in two key links: · Anti-tailgating in the ATM protection cabin: it is installed on both sides of the cabin. When more than one person is detected to enter the cabin at the same time, the linkage system can give a voice warning or lock the cabin door to prevent illegal elements from tailgating. · Anti-prying operation window: It is installed around the protective window or screen to form an invisible protection area. Once someone puts his hand or tool into it, it can trigger an alarm or a strong light and sound wave dispersal device. It does not work independently, but as the "perception nerve" of ATM intelligent protection system. When the intrusion signal is detected, it will send instructions to the controller immediately, and then trigger a series of linkage responses: · Linkage door lock, automatic locking or unlocking. · Activate voice prompts (such as "Please wait outside the one-meter line"). · Turn on the lighting or activate the flash for deterrence. · Activate the exhaust system or video surveillance.
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Infrared correlation sensor special for wing gate
The special infrared correlation sensor for wing gate is a core safety component integrated inside the wing gate (commonly known as "swing gate") to realize accurate personnel passage detection, anti-pinch and anti-collision protection and passage logic control. It ensures the safe, orderly and efficient operation of the wing gate through the invisible detection network composed of multiple groups of light beams. The core function of the wing gate sensor is based on its unique installation layout, which usually consists of multiple groups of opposed sensors to form a cooperative detection network: The entry detection and anti-following detection outside the entrance detect whether there is a person approaching, and are linked with the subsequent sensors to determine whether it is a single person entering or a multi-person following. Passage detection and anti-pinch in the middle (key) passage of the gate Multiple groups of light beams monitor the precise position of personnel/objects in the passage in real time to ensure that the wing of the wing gate will not be closed before the personnel pass completely, so as to realize active anti-pinch. Exit outside detection and reverse intrusion prevention Confirm that people have completely left the passage and prevent people from entering from the exit in the reverse direction. Core working mechanism: The sensor continuously transmits and receives the modulated infrared beam. Once the beam is blocked, it immediately outputs a signal to the main controller of the gate. The controller judges the passing state of personnel (such as normal passing, following, overtime staying, reverse intrusion, etc.) according to the sequence and logical relationship triggered by different position sensors, and commands the gate action and sound and light alarm. In order to realize the above functions, the special sensor for wing brake has the following outstanding features in design: 1. High resolution and fast response: It adopts a thin beam design with a resolution of millimeter level (such as 10 mm beam spacing), which can accurately detect small occlusions such as arms and legs. The response time is at the millisecond level to ensure real-time protection. 2. Strong anti-interference capability: It uses modulated infrared light with specific frequency and is equipped with optical filters, which can effectively resist the interference of ambient light (such as sunlight and light) and ensure stable operation under various indoor and outdoor lighting conditions. 3. High reliability and durability: The protection grade is usually IP54 or higher, which can prevent dust and moisture, and adapt to high-frequency use in public places. Its core photoelectric components are designed in industrial grade, with long service life and low failure rate. 4. Compact and easy integration design: The shape structure is specially designed for the narrow chassis embedded in the wing gate, and the installation is compact. Standard electrical interfaces (such as NPN/PNP switching value output) are convenient for rapid docking with various gate controllers. 5. Intelligent logic judgment: Through the combination and logic programming of multiple pairs of sensors (for example, "more than two pairs of sensors are blocked at the same time" is judged as a valid object), it can effectively filter the non-dangerous blocking of handbags and suitcases, and reduce false triggering.
Main products
Security alarm system, perimeter infrared detector, indoor and outdoor infrared detector, industrial machine tool safety grating, infrared photoelectric switch, correlation reflection sensor, laser correlation, network monitoring equipment
