Acoustic, optical, and electrical early warning systems
1. Overview:
The acoustic-optical alarm master unit features real-time monitoring and early warning for water and rainfall conditions. It can connect to water level and rainfall sensors, collect rainfall and water level data, and immediately issue early warning alerts when rainfall exceeds the warning level or water levels exceed limits. Simultaneously, it uploads water and rainfall monitoring and early warning information to the city and county flash flood monitoring and early warning platforms.
Audio-visual alarm master unitEquipped with various alarm signal release functions. Capable of receiving local ad-hoc network alarms, phone alarms, SMS alarms, and more, and supports multi-site联动 alarms, management platform announcements, microphone local announcements, and pre-recorded message playback. Features the ability to convert received text messages into voice and can replay SMS voice messages.1-99 times.
The acoustic-optical-electrical early warning master unit features remote monitoring and maintenance capabilities. It supports the management platform in remotely monitoring and controlling flood early warning equipment, with remote monitoring including online status and device parameters, and remote control encompassing remote alarm triggering and reset. Remote maintenance functions include remote configuration and upgrades.
2. Basic Functions:
System Operation StatusLED indicator
Voice alerts supported for mobile and landline phones.
Supports local setting of alarm threshold for automatic alert triggering.
Supports short message alerts and remote management.
Supports 4G data alerts and remote management;
Supports local setting of alarm threshold for automatic alert triggering.
Supports local microphone alarm, walkie-talkie alarm (optional);
Supports audio line input alarm.
Built-inMP3 Player, supports preset MP3 audio alarms.
Supports high-power loudspeaker broadcasting,Power Amplifier200W；
SupportFM Tuner (optional)
Supports LoRa wireless networking function, Bluetooth configuration option;
Supports monitoring function, monitoring the broadcast status of the amplifier;
Supports point-to-point, point-to-multipoint, and multipoint-to-multipoint peer-to-peer data transmission.
Supports graphical interface for remote configuration and maintenance.
Support localRS-232 serial port parameter configuration and remote parameter configuration;
Supports local Modbus 485 sensor connections;
Supports RS232 serial port connection for GPS/Beidou devices.
Supports pulse rainfall gauge connection;
Support4-20mA current-type sensor connection (optional)
Supports three-stage water level alarm connection (optional);
Integrated charging controller functionality, all-in-one design 。
3. Product Specifications:
Communication: EmployedTCP/IP protocol, 4G worldwide connectivity
Output Power:50/100/200W；
Audio Response:100—10000 Hz）±3dB；
Distortion (rated power):≤10%；
Signal-to-Noise Ratio:≥54dB；
Microphone sensitivity:5-20mV；
Line Input:0.775V；
Frequency Range:76-108MHz, 136-174MHz (optional)
Indicators: Power, Amplifier, Status, Network indicators
Interface:1 microphone interface, 1 AV audio interface, 1 USB port, 2 R485 channels, 1 232 channel, 1 rainfall pulse interface, 1 4-20mA sensor interface, 1 set of three-level water level sensor interfaces.
Standby Power Consumption:<4W；
Work Environment Temperature:-20 ～ +45℃ ；
Storage Temperature:-30 ～ +55℃；
Dimensions:370 x 177 x 55mm (excluding antenna, mounting parts, and handle).
