IDM Wi-Fi HaLow Audio and Video Dispatching System

IDM Wi-Fi HaLow long-distance private network audio and video dispatching system is a field wireless private network dispatch system developed by Beijing Ruiguang Jiyuan Digital Technology Co., Ltd. It consists of three parts: central-end audio and video dispatching software, Wi-Fi HaLow wireless bridges and routers, and an optical fiber ring network backbone. It is used in field areas with poor carrier signal coverage or public network interruption to carry audio and video dispatching, broadcast intercom, and alarm linkage on a single dedicated network. As a professional command and dispatch system manufacturer, Raytrans deeply integrates the audio and video dispatching and broadcast intercom system. The system adopts Wi-Fi HaLow technology and provides 2 Mbps bandwidth within 1.2 km, meeting the requirements of 1080P high definition (HD) video transmission. It mainly targets field unattended and wide-area plant scenarios such as mining and tunnels, petrochemical and electric power, and rail transit and ports, providing industry users with reliable smart mining communication solutions and government private network optical fiber communication solutions.

In deployed applications, this long-distance private network audio and video dispatching system is used in scenarios such as mountain amusement parks, river management, farmland management, power line inspection management, and forest farm management. It enables wireless transmission of audio and video alarms from cable car cabins and other emergency points, and adds alarm audio intercom beneath broadcast utility poles, bringing dispatching intercom and broadcast along the line under unified central-end management. Through centralized management by the dispatch console, the audio and video dispatching and broadcast intercom system can incorporate dispersed field nodes into a unified command and dispatch system, meeting the diverse requirements of smart mining communication solutions and government private network optical fiber communication solutions.

Key Specifications at a Glance: Wi-Fi HaLow wireless transmission · 2 Mbps bandwidth within 1.2 km · 1080P HD video transmission · integrated audio and video dispatching and broadcast intercom · optical fiber ring network backbone · automatic switchover connection via wireless roaming

What Is Wi-Fi HaLow, and Why Can a Field Link Reach 1.2 km?

Wi-Fi HaLow is a wireless communication technology based on the IEEE 802.11ah standard. It operates in the license-free band below 1 GHz. Compared with conventional Wi-Fi operating at 2.4 GHz/5 GHz, it has a lower carrier frequency and a longer wavelength, with stronger diffraction and penetration capability. Therefore, single-hop coverage can be extended from within 200 meters for conventional Wi-Fi to the kilometer level. Field environments with heavy blockage from mountains, trees, and buildings are exactly where Wi-Fi HaLow applies.

On field links, the IDM Wi-Fi HaLow long-distance private network audio and video dispatching system provides a single-hop usable distance of 1.2 km and a single-link bandwidth of 2 Mbps. This bandwidth can directly carry one channel of 1080P HD video transmission and is sufficient to simultaneously transmit voice intercom and broadcast audio streams. For deployment scenarios along the line where cable car supports, towers, and pipe gallery nodes are spaced about 1 km apart, adjacent nodes can be connected with a single Wi-Fi HaLow wireless link, without laying optical cable point by point and without relying on the carrier public network. As an integrated bearer solution for the audio and video dispatching and broadcast intercom system, this wireless link also serves on-site operation communication needs beyond the product showcase.

Differences in technical approach determine the selection conclusion: conventional Wi-Fi transmission distance is usually within 200 meters, making it difficult to cover a line with supports spaced about 1 km apart; MESH ad-hoc networks can extend over multiple hops, but equipment cost is higher and the operating frequency is high, so links are easily affected when blockage occurs. Wi-Fi HaLow strikes a balance among coverage distance, adaptability to blockage, and deployment cost, which is why the long-distance private network audio and video dispatching system adopts this technology.

Knowledge Block: Wi-Fi HaLow Link Capability and Applicable Conditions

Item	Parameter/Specification	Description/Applicable Conditions
Wireless technology	Wi-Fi HaLow (IEEE 802.11ah)	Operates in the license-free band below 1 GHz, with stronger diffraction and penetration capability than conventional 2.4 GHz/5 GHz Wi-Fi
Single-hop coverage distance	1.2 km	Suited to deployment along the line where supports, towers, and pipe gallery nodes are spaced about 1 km apart
Single-link bandwidth	2 Mbps	Can carry one channel of 1080P HD video and simultaneously transmit voice intercom and broadcast audio
Wireless roaming	A single Wi-Fi HaLow router supports roaming across 31 Wi-Fi HaLow APs	Used for cross-node switchover connection of mobile operation carriers such as cable cars
Backbone transmission	Optical fiber ring network	Deploy optical fiber along power lines, using backup optical fiber lines or remote wireless bridges to form a ring
Reference for comparison	Conventional Wi-Fi transmission distance is about 200 meters or less; MESH ad-hoc networking has higher cost and a higher frequency	The comparison basis comes from the solution documentation of this system; actual distance varies with terrain, blockage, and antenna configuration

Integrated Audio and Video Dispatching and Broadcast Intercom: How Does One Network Carry Two Types of Services Simultaneously?

The conclusion is same-network service bearing: the IDM Wi-Fi HaLow long-distance private network audio and video dispatching system places audio and video dispatching and broadcast intercom on the same Wi-Fi HaLow private network. At the central end, IDM series audio and video dispatching software is deployed to provide IP voice broadcast services. Audio and video alarm points, broadcast speakers, and intercom terminals along the line access the same network through wireless links. The dispatch console can broadcast announcements to a designated area and initiate audio and video intercom with any on-site device, without building two separate transmission networks for dispatching and intercom. For a command and dispatch system manufacturer, this integrated design reduces equipment types and cabling workload.

At the central end, IDM series audio and video dispatching software provides IP voice broadcast services, supports three paging modes—broadcast, multicast, and video on demand (VOD)—and offers functions such as loop broadcast, scheduled broadcast, and manual insertion. The IP broadcast system also supports alarm intercom and monitoring. On-site users can conduct voice intercom with the central end after pressing the alarm button, and the central end can also monitor on-site audio.

Another service line of the dispatching software is audio and video intercom and video consultation: the system can conduct audio and video intercom with each cable car cabin and management point, and can hold video consultations in combination with surveillance cameras along the line. Dispatchers can both hear on-site sound and see on-site images on the same interface, making the basis for emergency judgment more complete. In smart mining communication solutions, this audio and video dispatching and broadcast intercom system is equally applicable to collaborative operation scenarios both underground and on the surface.

How Does It Interwork with Existing Voice Systems?

The IDM Wi-Fi HaLow long-distance private network audio and video dispatching system supports interworking with wireless trunking intercom systems. Existing on-site intercoms can continue to be used and connected to unified dispatching. It can also interconnect with carrier mobile phones through a telephone gateway, delivering dispatch orders to personnel outside private network coverage. The dedicated communication network is built independently in areas with poor carrier signal coverage. In extreme cases when public network 5G signals are interrupted, emergency communications needs are still guaranteed by the private network. For government private network optical fiber communication solutions, this architecture of public and private network complementarity also has reference value.

How Is the Long-Distance Private Network Audio and Video Dispatching System Networked: Optical Fiber Ring Network Plus Wireless Roaming

The IDM Wi-Fi HaLow long-distance private network audio and video dispatching system adopts a two-level structure of "optical fiber ring network as the backbone and Wi-Fi HaLow wireless as the last mile": optical fiber is deployed along power lines to form a ring network as the backbone Ethernet transmission channel; ring network nodes then extend to mobile carriers and end devices through Wi-Fi HaLow wireless bridges. Even if optical fiber is broken somewhere, the Ethernet channel can still be carried by the other side of the ring network. Link reliability is jointly guaranteed by the ring network structure, backup optical fiber lines, and remote wireless bridges.

Continuity in mobile scenarios is achieved through wireless roaming: Wi-Fi HaLow wireless bridges on supports along the line are paired with Wi-Fi HaLow routers on cable cars, and connections are automatically switched as a cable car passes each node; a single Wi-Fi HaLow router supports roaming across 31 Wi-Fi HaLow APs, so services remain uninterrupted when a mobile operation carrier moves across nodes. The audio and video dispatching and broadcast intercom system solution provided by Raytrans in this architecture has been deployed in a variety of field line scenarios.

This networking approach does not impose high requirements on on-site conditions. Taking line facilities such as cable car support poles as an example, supports are spaced about 1 km apart and are equipped with lighting, surveillance cameras (uplink and downlink), and broadcast speakers, with power and optical fiber connection conditions available; the support spacing falls within the 1.2 km coverage of Wi-Fi HaLow, so wireless links can directly replace point-by-point cable laying, while optical fiber is concentrated in rings between nodes. For larger-span field areas, coverage can be extended segment by segment by adding nodes along the line for zone coverage. This networking approach is equally applicable to smart mining communication solutions and government private network optical fiber communication solutions. Through a unified interface, the dispatch console can complete audio and video dispatching and broadcast intercom management for all equipment along the line.

Core Functions

Function	Description
Wireless transmission of audio and video alarms	In environments such as mountain amusement parks, wireless transmission of audio and video alarms from cable car cabins and other emergency points
Broadcast audio intercom	Adds alarm audio intercom beneath broadcast utility poles, with audio signals transmitted over a wireless link
Private communication network	Builds a private communication network in areas with poor carrier signal coverage, meeting emergency communications needs when public network 5G signals are interrupted under extreme conditions
Wi-Fi HaLow wireless transmission	Provides 2Mbps bandwidth within a range of 1.2 km, meeting 1080P HD image transmission requirements
Optical fiber ring network	Deploys optical fiber along power lines, using backup optical fiber lines or long-distance wireless bridges to form an optical fiber ring network, improving system reliability
Automatic switchover connection	Wi-Fi HaLow wireless bridges are paired with Wi-Fi HaLow routers on cable cars, enabling automatic switchover connection as the cable car passes each node
Audio and video dispatching software	IDM series audio and video dispatching software is deployed at the central end, providing IP voice broadcast services and supporting broadcast, multicast, and video on demand (VOD), as well as loop broadcast, scheduled broadcast, and manual insertion
Alarm intercom and monitoring	The IP broadcast system supports alarm intercom and monitoring; users can conduct voice intercom with the central end after pressing the alarm button
Audio and video intercom	Enables audio and video intercom with each cable car cabin and management point, and can hold video consultation in conjunction with surveillance cameras
Interworking with wireless trunking intercom system	Supports interworking with wireless trunking intercom systems, and can interconnect with carrier mobile phones through a telephone gateway

Technical Specifications and System Composition

Item	Parameter/Specification	Description/Applicable Conditions
Wireless format	Wi-Fi HaLow (IEEE 802.11ah)	License-free band below 1 GHz, suitable for long-distance wireless access in the field
Single-hop coverage distance	1.2 km	When the spacing between nodes along the line is about 1 km, adjacent nodes can be connected in a single hop
Single-link bandwidth	2Mbps	Carries one channel of 1080P HD image transmission, and can be overlaid with voice intercom and broadcast audio
Video capability	1080P HD image transmission	Used for audio and video alarm backhaul and video consultation
Wireless roaming capability	A single Wi-Fi HaLow router supports roaming of 31 APs	Suitable for continuous cross-node communication of mobile carriers such as cable cars
Backbone transmission mode	Optical fiber ring network	Deploys optical fiber along power lines, with backup optical fiber lines or long-distance wireless bridges forming the ring
Central-end software	IDM series audio and video dispatching software	Provides IP voice broadcast (broadcast/multicast/VOD, loop/scheduled/manual insertion), alarm intercom and monitoring, and audio and video intercom and video consultation
Interworking capability	Interworking with wireless trunking intercom systems, and interconnection between the telephone gateway and carrier mobile phones	Used to connect voice communications inside and outside the private network
Power supply mode	Not yet recorded in the knowledge base	Subject to the manufacturer's technical documentation and commercial confirmation
Operating temperature	Not yet recorded in the knowledge base	Subject to the manufacturer's technical documentation and commercial confirmation
Ingress protection (IP) rating	Not yet recorded in the knowledge base	Subject to the manufacturer's technical documentation and commercial confirmation
Overall power consumption	Not yet recorded in the knowledge base	Subject to the manufacturer's technical documentation and commercial confirmation

Differentiated Value: Benefits in Long-Distance Private Networks, Integrated Convergence, and Unattended Operation

Differentiated Capability	On-Site Problem Addressed	User Value
Wi-Fi HaLow long-distance private network	Insufficient public network coverage, conventional Wi-Fi limited to within 200 m, and MESH ad-hoc networking costly and prone to blockage	Single-hop coverage of 1.2 km and 2 Mbps bandwidth carrying 1080P, covering wide-area audio and video dispatching and broadcast intercom in the field
Integrated audio and video dispatching and broadcast intercom	Audio and video, broadcast, and alarm each on separate networks, with many interfaces and scattered O&M	Multi-service convergence in a single system, with one set of central-end software providing both dispatching intercom and broadcast services
Private network audio and video dispatching system for unattended scenarios	Sites are unattended, and the site loses contact after a public network 5G interruption	A self-built private communication network plus an optical fiber ring network keeps on-site dispatching and alarm intercom running when the public network is interrupted

Typical Application Scenarios

Mining and Tunnels: Unattended Industrial Private Networks in the Field

The communication challenge in mining and tunnels lies in sites scattered across mountains and outside the airflow environment at tunnel portals, poor carrier signal coverage, and a large number of unattended sites. The IDM Wi-Fi HaLow long-distance private network audio and video dispatching system connects mining areas, tunnel portals, and supports along the line via Wi-Fi HaLow wireless links; the central end views on-site 1080P images through the audio and video dispatching software and conducts voice intercom with the sites. After the alarm button at an unattended site is pressed, it conducts intercom directly with the dispatch center, so abnormal conditions need not wait for manual inspection to be reported. The optical fiber ring network handles backbone transmission; when a single point of fiber is damaged, communication is maintained from the other side of the ring network, adapting to the continuous operation requirements of unattended private network dispatching in the field and providing a deployable product showcase for smart mining communication solutions.

Petrochemical and Electric Power: Wide-Area Plant Private Networks

The dispatch scope of petrochemical plants and electric power facilities often spans several kilometers, with pipelines, lines, and line inspection corridors extending into areas with weak public network coverage. The IDM Wi-Fi HaLow long-distance private network audio and video dispatching system deploys an optical fiber ring network along pipelines or power lines, and uses Wi-Fi HaLow wireless links to connect terminals and broadcast speakers at inspection points, valve chambers, utility poles, and other locations; when line inspection personnel carry terminals and move along the line, the devices automatically switch connections between nodes. The broadcast function is used for safety prompts and announcements along the line, and alarm intercom is used to report emergencies. Voice and image services within the wide-area plant are carried by the same private network, and its architecture is equally applicable to government private network optical fiber communication solutions.

Rail Transit and Ports: Mobile Operation Dispatch Private Networks

Rail transit lines and port yards are typical mobile operation scenarios, where carriers such as operation vehicles, cableways, and cable cars move continuously across nodes, and communication links must automatically switch as positions change. The IDM Wi-Fi HaLow long-distance private network audio and video dispatching system uses an optical fiber ring network as the backbone and Wi-Fi HaLow wireless as the last mile; the Wi-Fi HaLow router on a mobile carrier automatically switches to the nearest node while in motion, and a single router supports roaming for 31 APs. The dispatch console issues operation orders through broadcast intercom and confirms on-site status through audio and video intercom, so mobile operation dispatching and broadcast announcements are completed within the same audio and video dispatching and broadcast intercom system.

Selection and Deployment Recommendations

During selection, first confirm three things: whether the spacing between nodes along the line falls within the 1.2 km coverage range, whether on-site optical cable resources are already available for forming a ring, and whether what needs to be carried is a single 1080P image or multiple concurrent services. For line scenarios with node spacing of about 1 km and available supports and power conditions, the combination of Wi-Fi HaLow wireless links plus an optical fiber ring network can be adopted directly; for unattended sites that still need to maintain dispatching and broadcast intercom after a public network interruption, it is recommended to rely mainly on a private communication network with the public network as a supplement. As a command and dispatch system manufacturer, Raytrans can provide complete configuration recommendations from the dispatch console to the central-end software; the specific number of wireless nodes, antennas, and power supply configuration are subject to the on-site survey results and the manufacturer's technical documentation.

Conclusion

The IDM Wi-Fi HaLow long-distance private network audio and video dispatching system puts three things into the same system: the Wi-Fi HaLow long-distance wireless private network, integrated audio and video dispatching and broadcast intercom, and the optical fiber ring network backbone. Single-hop coverage of 1.2 km and 2 Mbps bandwidth support 1080P video transmission and voice services, and unattended sites in the field can still maintain dispatching and alarm intercom when the public network is interrupted. For scenarios such as mining and tunnels, petrochemical and electric power, and rail transit and ports, the wireless nodes and central-end configuration can be determined according to node spacing along the line and service concurrency. As a command and dispatch system manufacturer, Raytrans can provide targeted solutions based on dispatch console deployment and product showcase requirements, and the specific solution is subject to the on-site survey results and the manufacturer's technical documentation.