Airport voice broadcast: How to connect the 30W smart park voice terminal sound column to the project_解决方案

CATALOG

1. Written in front: Why choose this sound column?

Let’s talk about the background first. In our airport project, voice broadcast is a necessity - flight status, boarding reminders, emergency evacuation, everything is inseparable from it. Traditional broadcast systems either have complicated wiring, or have to copy the USB flash drive on-site to change the broadcast content, which is so inefficient that it is a headache.

The biggest advantage of Thingboot’s 30W smart sound column (smart voice column series, 20W/30W/60W interfaces are the same) isOpen HTTP interface for direct remote control. You don’t need to buy a special broadcast server or understand complex audio protocols. As long as your business system can send HTTP requests, you can let it speak..

To put it bluntly, it is to use a sound column as an "API terminal that can produce sounds".

2. Overall structure: explain clearly in one sentence

Airport business system (flight system/security system/emergency command)
        ↓ HTTP/HTTPS request
  Thingboot open platform (or privately deployed message server)
        ↓ WiFi/4G/wired network
  30W smart sound column (installed in the departure hall/boarding gate/baggage claim area)
        ↓ 
  Passengers hear clear voice announcements

The benefits of this architecture are:Your original flight scheduling system and security check reminder program can directly make the sound column sound by adding a few lines of code.. No need to change the system or drastically change the process.

3. Access steps: step by step

Step 1: Power on the equipment and distribute the network

Get the sound column and power it on first. This 30W version supports two networking methods: WiFi 2.4G and wired network port..

WiFi method: Use the mobile app or the network distribution mode that comes with the device to connect the sound column to the airport’s wireless network (remember to be able to connect to the external network, unless you are doing a privatized deployment)
Wired method: Directly plug in the network cable and assign a fixed IP, which is more stable and recommended for use in key scenarios such as airports.

After the network configuration is successful, you can see the device in the Thingboot console and get the two most critical things:Device ID (device)andAppID. These two are your "ID cards" for subsequent calls to the interface..

Step 2: Interface call - let the sound column speak

This is the core part. Thingboot's interface is designed to be very simple. You don't need to understand what SIP protocol or RTP stream is, just use it as an interface for sending text messages.

interface address(HTTP mode):

http://api.thingboot.com/{AppID}/device/control/?sign={sign}&ts={ts}

The most commonly used scenario: broadcasting a piece of text

For example, you need to shout at the boarding gate: "Passengers heading to Beijing, please note that your flight CA1234 is now boarding."

Your system only needs to send a POST request with the device ID and the message:

It's that simple. After receiving the sound column, it will use the built-in TTS chip to synthesize speech, and the real person will speak. You do not need to record anything in advance..

A little more advanced: adjust volume and timbre

The environment of a large airport is noisy, and the default volume may not be enough. You can send several parameters at the same time:

volume: Level 0-9, the bigger the number, the louder it is
voice:Support male/female voice
speed:Speech speed, level 0-9

Step Three: Handle Special Situations

1. What if the broadcast content is very long?

For example, you want to broadcast a long list of flight information. The interface itself does not limit the length, but you can break sentences or add punctuation to make the TTS more natural. Thingboot's chip supports digital reading (automatic optimization of amount and mobile phone number), and also supports multi-phonetic character annotation..

2. How do you know whether the device is broadcasting?

HTTP return 200 only means that the platform has received the instruction, but does not mean that the device has actually broadcasted (for example, the device happened to be offline). If you need to confirm the broadcast results, you can turn onAsynchronous message push——If the device execution succeeds or fails, the platform will send a notification to the server you specify..

3. What should I do if a server wants to control dozens of sound columns?

The interface supports batch delivery, up to 100 devices at a time. You can speak to all the loudspeakers in Area A of the terminal at the same time, or you can announce individually to a single loudspeaker at a certain boarding gate..

4. Specific configuration of the airport scene

Based on the actual environment of the airport, here are some configuration experiences:

Scenario 1: Reverberation problem in the waiting hall

The departure hall has many glass curtain walls and high space, so it is prone to echo. Although this is a problem of architectural acoustics, we can optimize it from the sound column configuration:

Slow down the speaking speed appropriately (set speed to 3-4) so that each word can be spoken clearly
Don’t turn the volume up to full (around 7 is enough). Too loud will increase the reverberation.
If it is an adjustable line array sound column like Shibang, it can also perform beam control., although this 30W model of Thingboot is not that high-end, it can also alleviate the problem by placing a few more points and controlling the coverage of a single sound column.

Scene 2: Outdoor apron/shuttle area

Waterproof and dustproof are a must. Thingboot’s aluminum alloy shell + IP level protection is no problem. However, the background noise in the outdoor environment is loud (aircraft engines, shuttle buses):

Turn the volume up to 8-9
Choose a tone with strong penetration (male voices are slightly more discernible than female voices in low-frequency noise)
If conditions permit, place a dot every 50-70 meters

Scene 3: Baggage claim hall

The environmental noise in this place is complex (the sound of suitcase wheels, noisy voices), and it is also the time when passengers are most distracted. :

Add a prompt sound (such as "ding dong") before broadcasting to grab attention first
Thingboot sound column has 5 built-in prompt sounds and 5 warning sounds, which can be used like this

5. Privatization Deployment: If the airport does not allow access to the public network

Some airports have high data security requirements and equipment can only run on the intranet. Thingboot product supportPure LAN private deployment, you set up your own message server, and the sound column is only connected to the intranet, without going through any cloud..

This means:

Change the control interface address to your own server IP
No need to go through public network signature verification, internal calls are simpler
Suitable for critical infrastructure such as airports

6. Several possible pitfalls

Don’t get the device ID wrong: The device ID of the console is purely numeric and should not be confused with the product model. Before issuing the command, ping or adjust the status interface to confirm that it is online..
Network latency problem: In a WiFi environment, there is a delay of about 0.5-2 seconds from the time the command is sent to the sound column. If the real-time requirement is relatively high (such as emergency evacuation), the wired version or privately deployed LAN can be used to reduce the time to less than 200ms.
Concurrent reporting conflicts: If the same sound column receives two broadcast instructions at the same time, the latter will interrupt the former. You can do queue management at the business layer yourself - for example, high-priority announcements of the flight system are queued, background music and other low-priority queues are queued.
Don’t ignore the power supply: This 30W sound column uses DC 12V 2A DC power supply. For outdoor installation, you must consider the waterproof power box and power supply issues. Don't just pull out the power strip.

7. Summarize

Connecting Thingboot 30W smart sound column to the airport project is essentiallyAbstract physical devices into a programmable API. You don’t need to understand audio hardware or broadcast protocols. Just like adjusting a text message interface, you can make the sound column speak in every corner of the airport.

Suitable scenarios include:

✅ Automatic broadcast of flight status (connected to flight database)
✅ Security check queue length reminder (connected to the security check queue system)
✅ Emergency evacuation instructions (one-click trigger for the entire area)
✅ Baggage carousel status notification (docking baggage system)

Of course, if the project scale is particularly large (such as a hub airport with an annual passenger throughput of more than 50 million), it may be necessary to consider a more professional broadcast matrix and fire protection linkage., but if you only need the ability to "let the remote speaker speak human language", Thingboot's solution is simple and efficient enough.

If you don’t understand anything, just read the interface documentation of Thingboot Open Platform, it’s very clear. Good luck with the connection!