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Manufacturer of integrated audio and video solutions

High-speed public address system solutions

Highway Public Address System-Scheme Construction

System Overview
Highway broadcasting system plays a very important role in traffic operation, passenger service, disaster prevention and rescue, equipment maintenance and so on. When the subway passenger flow surges caused by major events and festivals, as an important means of implementing emergency passenger transport organization, it provides guarantee for the operation organization of large passenger flow. When encountering emergencies such as accidents and disasters, it is an important tool for emergency guidance and disaster relief. The broadcasting system can broadcast the voice prompt of the selected content for different areas, and convey the intimate prompt to every corner. In case of special weather, remind passengers to pay attention to safety; and in case of emergency, the station staff can use the radio to guide the evacuation of passengers.


demand analysis
Demand 1: Service areas, high-speed driving roads, toll stations, ramps, tunnels and other areas need to have broadcast information notifications and reminders such as weather conditions, road information, and road conditions ahead; in the rhythm of high-speed driving, it is beneficial for drivers to receive in time Information brings efficient traffic order.
Requirement 2: To avoid failure to give information in time when other emergency situations such as fire occur, it can be linked with the fire fighting system. When fire or other emergency situations occur, the broadcasting system can automatically trigger the alarm emergency broadcast.
Requirement 3: Each terminal site can conduct two-way intercom and multi-party calls; when an emergency occurs at other sites, it can be notified and discussed as soon as possible to take corresponding measures.
Requirement 4: The highway general control center is required to broadcast independent calls to each station.
Demand 5: Due to the poor wireless signal and long road length of expressway road sections, communication equipment such as mobile phones cannot meet the actual environmental requirements and there are problems of difficult wiring and high consumption. It is required to design emergency help terminals and broadcast terminals on roads and ramps, and contact the subway control center in case of emergency.
Requirement 6: In view of the complex environmental conditions such as tunnels, ice, snow, rainstorm and bad weather, it is required to maintain clear sound quality and the service life of the equipment, and it is necessary to prevent dust, sun, rain and corrosion.


Design Ideas
Implementation 1: IP network decoding terminals are used in service areas and other areas. The combined broadcast power amplifier ceiling speaker sound column can independently broadcast different voice information in each area.
Implementation 2: The high-speed command building is equipped with an IP network alarm host, which can be linked and docked with the fire protection system of the expressway itself. When the fire protection system receives an emergency signal, it will instantly activate the IP network alarm host. The network alarm host will carry out alarm in zones, whole regions and adjacent floors according to corresponding settings, and cooperate with linkage output to trigger other equipment to carry out emergency actions, such as triggering alarm lights to flash, trigger fire sprinkler to spray water for fire fighting, etc.
Implementation 3: Each site is equipped with touch-type two-way intercom call microphone, and cooperate with the corresponding mode of the system: the system has its own conference mode, and the conference personnel are selected to form conference groups, thus long-distance audio conference can be realized. During the meeting, any person can speak, others can listen through the IP unit microphone with its own sound reinforcement unit, and can also be answered through headphones.
Implementation 4: Set up through the two-way intercom call microphone interface, set up each virtual key to correspond to different areas and different partitions, set up a unique call code for each device to make an independent dial call, and realize the independent call of the highway total control center to each site.
Implementation 5: The tunnel is equipped with a one-button help terminal. In any case, you can press the button of the one-button help terminal and tell the corresponding situation in the tunnel. The management center can make the most accurate response to the situation, and the driver can quickly get the most correct rescue.


Functional advantages
(1) graphical interface, easy to learn; touch screen operation, easy to use.
(2) Mobile phone APP remote control playback function: supports uploading files to the server, instantly playing the internal audio files of the mobile phone, and can be broadcast at any time through the paging function.
(3) Text broadcasting function, the system can directly convert text into audio files, and install the corresponding voice package to customize the sound on demand.
(4) File playback function, centralized control room and each sub-control area can be played through software selection files.
(5) Real-time acquisition and broadcasting function, which can set up traffic information, alarm and emergency notification, service area and exit navigation, safe driving promotion, music and entertainment content broadcasting and multi-language support for daily acquisition and broadcasting.


Application Effect of Public Broadcasting on Daily Expressway
Provide real-time train information: the station broadcasting system can update the arrival time, departure time and delay of the train in time, providing accurate train information for passengers, so as to facilitate them to arrange the journey and waiting time reasonably.
Transfer guidance and traffic scheduling: The broadcast system can provide passengers with transfer guidance and traffic scheduling information. When a line fails or is adjusted, the broadcasting system can notify passengers in time and provide alternative transportation plans to help passengers plan their journey.
Safety warning: The station broadcasting system can also be used to issue safety warnings and reminders to remind passengers to comply with the regulations and pay attention to safety. For example, passengers are required not to approach the edge of the platform, not to stand while the vehicle is driving, etc., in order to improve the safety awareness and behavior of passengers.
Public service notification: The broadcasting system can also be used to issue public service notifications, such as shop activities around the station, tourist information, community announcements, etc. Such applications can provide passengers with practical information and provide better service and shopping experience.
Emergency notification in case of emergency: In case of emergency, the station broadcasting system can quickly issue an emergency notification to inform passengers to take necessary safety measures. For example, in the event of a fire, bad weather, or other emergency, the broadcast system can communicate evacuation instructions and safety reminders to passengers in a timely manner.


Successful Cases