01 Dense blocks, fast spread
Tight spacing, no fire separation and connected brick-timber structures let fire reach neighbouring units within about ten minutes.
Wanlin solution briefing · Updated
Smart Fire Protection for Aging Residential Districts in Guizhou: A No-Wiring Renovation Blueprint
In one sentence: Old residential districts concentrate six known risks - dense blocks, missing equipment, aged wiring, blocked lanes, slow discovery, and absent management - delivered as a wireless sensing network, a 7x24 monitored cloud platform and a county service station that answers the alarm.
At a glance
- Why fire safety is a mandatory item in old-residential renovation
- The six recurring risks and the three capability gaps behind them
- One network, one cloud, one screen: the delivery architecture
- Five cloud solutions and the hardware list behind them
- Three funding models, a seven-step plan and a 500-household bill of quantities
Policy anchor
Guobanfa [2020] No.23 makes fire-safety improvement a mandatory renovation item for communities built before the end of 2000
Guobanfa [2020] No.23 makes fire-safety improvement a mandatory renovation item for communities built before the end of 2000
Scale of the task
About 39,000 communities started renovation in 2020, covering more than 7.5 million residents (national figures)
About 39,000 communities started renovation in 2020, covering more than 7.5 million residents (national figures)
Delivery model
Wireless sensing + Jellyfish IoT cloud + county service station; about 45 days per community including a 30-day trial
Wireless sensing + Jellyfish IoT cloud + county service station; about 45 days per community including a 30-day trial
Why fire safety is now the must-answer item
Guobanfa [2020] No.23, the national guiding opinion on old urban residential community renovation, put communities built before the end of 2000 at the front of the queue and named fire-safety improvement as basic-class renovation content. By 2022 the institutional framework was in place; by the end of the 14th Five-Year Plan period the task shifted from "renovating housing" to "renovating safety and governance". In acceptance and assessment terms, monitored fire safety has moved from bonus to requirement.
Scope disclosure: This page addresses aging-residential fire renovation projects in Guizhou. Wanlin Fire Technology Co., Ltd. manufactures in Shenzhen with an office in Beijing and delivers through the county service-station model; figures such as device counts and timelines are the published planning numbers from the Wanlin program and must be confirmed by an on-site survey. Certificate scope must be verified for the exact model before award.
Six recurring risks in aging districts
Field surveys of pre-2000 housing keep returning the same six problems.
02 Missing or dead equipment
Hydrants without water, under-pressure mains, expired extinguishers - installed once, maintained never.
03 Aged wiring and fly-leads
Overdue circuits, dangling e-bike chargers and overloaded meter boxes make electrical causes the leading ignition source.
04 Blocked lanes and exits
Parked cars, stored corridors and sealed windows keep fire engines out and residents in.
05 Residents slow to detect
Concentrated elderly population; discovery often depends on a neighbour smelling smoke, past the golden response window.
06 No management, no owner of the risk
Many districts have no property office, no control room and no duty roster, so hazards persist unexamined.
Three gaps, three answers
Fixing a district means answering three questions: what was never installed, who answers the alarm, and who maintains it.
What was never installed
Detection, call points, hydrant pressure monitoring and serviceable extinguishers are simply absent; automatic fire alarm is close to zero.
Wanlin answer: Wireless sensing network: battery devices, minutes per point, no rewiring.
What nobody answers
No property, no control room, no duty roster; alarms sound to an empty room and repairs wait a year.
Wanlin answer: 7x24 cloud duty plus a county service station that attends locally, with every step recorded.
What nobody knows how to run
No professional fire staff: no ability to judge alarm authenticity, organize evacuation or keep maintenance records.
Wanlin answer: Platform-fixed patrol, ticket and maintenance workflows, with training and optional third-party custody.
Architecture: one network, one cloud, one screen
Three layers keep total cost down and responsibility single: sense wirelessly, monitor centrally, supervise visually.
- One network. 4G Cat.1 and NB-IoT carry most points, LoRa 470 MHz covers local clusters; battery devices install in minutes with no cabling and no power taking.
- One cloud. The Jellyfish IoT platform manages devices, alarms, tickets, patrols and video in one place, with role-based access for street, property and maintenance teams, and supports private deployment with standard APIs.
- One screen. A street supervision map, a property duty wall and a grid-worker mini program share the same device and alarm records, so an alarm can be traced from resident report to closed ticket.
- Keep the old panel. A working legacy fire alarm panel is not scrapped: one WANLIN-921 transmission device networks it to the platform (GB 26875.3).
Five cloud solutions, selectable by pain point
The program can be built in one pass or phased by need. The five modules below can be taken singly, and the order on this page reflects a common phasing.
01 · Smart Home Cloud - defending the last metre inside the door
Standalone smoke in bedrooms and living rooms, combustible gas in kitchens with shutoff linkage, water-leak sensing, door contacts, SOS buttons, an AI home safety package with a single gateway for all peripherals, and "kitchen guard" reminders for unattended cooking.
What it changes: Fires that start inside a home - the majority in aging districts - are detected at the mattress and stove rather than at the corridor.
02 · Smart Elderly-Care Cloud - making sure someone notices
A safety profile for each independent or disabled elderly resident, unified SOS, smoke, gas and door signals into the community platform, anomaly prompts when a door stays unopened or utilities go quiet, and a closed loop of alarm, notify, visit and record.
What it changes: The group most likely to die in an old-district fire is the least able to raise the alarm; this layer makes their silence visible.
03 · Smart Fire Cloud - public areas stop relying on "someone smelling smoke"
Covers corridors, bike sheds, hydrant systems and fire lanes: photoelectric smoke in stairwells, heat detection over e-bike charging, call points with sounder strobes on escape routes, wireless hydrant buttons, 4G pressure and level gauges on the water system, and camera plus door-contact supervision of lanes and exits.
What it changes: Corridor fires and indoor e-bike charging are caught early; a pressed call point alerts the whole building; and the water system is proven wet before it is needed.
04 · Smart IoT Cloud - connect old buildings without touching a brick
NB-IoT and 4G Cat.1 carry the traffic wherever a base station reaches, with LoRa 470 MHz for local networking. Every terminal has a unique serial, binds by QR scan, and reports online status, signal, battery and location down to building, unit and room.
What it changes: The two largest cost items in old-district retrofit - cabling labour and wall chasing - are designed out, and every point stays visible on a live map.
05 · Smart Maintenance Cloud - from "nobody manages it" to "managed and provable"
Full lifecycle records per device, inventory ledgers for non-networked gear such as extinguishers with expiry reminders, patrol tasks with scan-and-photograph evidence, repair tickets with trackable progress, and automatic monthly reports on alarms, faults and completion rates.
What it changes: Streets, communities, property and maintenance firms work in one platform under separated permissions, so responsibility is assignable and every action leaves a record.
Hardware list behind the program
Hardware is developed in-house across detection, hosts, electricity and water-system monitoring. The models below are the published references for this program; certificate scope must be confirmed for the exact model and configuration.
| Function | Model | Deployed at | Published standard |
|---|---|---|---|
| Standalone photoelectric smoke | WANLIN-307 / 309 / 310 | Corridors, stairwells, bike sheds, homes | GB 20517 |
| Wireless heat detector | WANLIN-340 | E-bike charging areas, garages | XF 1151 |
| Manual call point (wireless) | WANLIN-222 | Corridor entrances, escape routes | - |
| Sounder strobe | WANLIN-656 | Corridors and common areas for whole-building alert | GB 26851 |
| NB-IoT door contact | WANLIN-241 | Fire doors, exits, lane monitoring | - |
| 4G pressure gauge | WANLIN-770 | Hydrant mains, outdoor hydrants | - |
| 4G level gauge | WANLIN-780 | Fire tanks and roof reservoirs | - |
| User information transmission | WANLIN-921 | Networks a legacy fire alarm panel | GB 26875.3 |
| Smart electricity set | Host 705 + breaker 710 / 711 | Distribution boxes, charging areas | - |
| Home safety kit | Gateways 260/261/262 + gas 365 + door, leak, SOS | Independent elderly and at-risk homes | - |
Camera compatibility covers mainstream brands with Wi-Fi configuration, and an alarm pops the corresponding live view on the duty screen.
Three funding models
| Model | Funder / source | Character |
|---|---|---|
| Model 1 - Government investment | Street / district renovation special funds | One-off build with yearly platform operation; funds path is clear and settles into renovation accounts. |
| Model 2 - Property / owners co-construction | Property company plus housing maintenance funds | Costs shared by point, long-term service; can be linked to property fees or parking income. |
| Model 3 - Socialized operation | Operator or service company invests; residents or property buy the service | Zero up-front build; yearly service fee; the operator holds the assets and can be replaced if service fails. |
The models mix in practice: public areas from renovation funds, in-home packages through socialized operation, and one yearly-fee duty chain across everything.
Seven steps, about 45 days per community
| # | Stage | Work | Duration |
|---|---|---|---|
| 1 | Survey | Building structure, existing fire facilities, network coverage, at-risk residents | 3-5 working days |
| 2 | Design | Point plan, device selection, network plan, investment estimate and quotation | 3 working days |
| 3 | Installation | Wireless terminals, duty-room devices, legacy panel integration and test | 5-10 working days |
| 4 | Platform setup | Community profile, floor plans, point mapping, alarm rules, roles | 2-3 working days |
| 5 | Training | Point-by-point and linkage tests; separate training for street, property and grid staff | 2 working days |
| 6 | Trial run | No less than 30 days: nuisance-alarm tuning, process rehearsal, response drills | 30 days |
| 7 | Acceptance | Documentation, formal acceptance, entry into operation and duty service | Per contract |
Occupied blocks must keep living normally during works. The 30-day trial exists to drive the nuisance-alarm rate down and rehearse the response chain before acceptance.
What a 500-household community looks like on a quote
Wanlin’s published reference quantities for a roughly 500-household community are below; the final list always follows an on-site survey.
| Device | Reference qty | Deployed at |
|---|---|---|
| 4G / NB standalone smoke detectors | 150-250 | Corridors, sheds, homes of independent elderly |
| Combustible gas detectors | 30-50 | Households with upgraded shared kitchens |
| Smart electricity terminals | 30-60 | Unit distribution boxes, e-bike charging areas |
| Manual call points | 10-20 | Unit entrances and escape routes |
| Sounder strobes | 20-30 | Corridors and common areas |
| Door contact / water leak / SOS kits | 50-100 | Independent and empty-nest elderly homes |
| Cameras | 8-20 channels | Entrances, sheds, fire lanes |
| 4G pressure gauges | 5-10 | Outdoor hydrants and mains |
| 4G level gauges | 1-2 | Fire tanks and high-level reservoirs |
| User information transmission device | 1 | Keeps an existing panel networked |
Frequently asked questions
Who pays for it - government, property company or residents?
Three published models: government investment from renovation special funds; property and owners co-construction through maintenance funds; or socialized operation where an operator invests and recovers cost through yearly service fees. The models can be mixed.
Will installation disturb residents?
Installation is minutes per point - no wall chasing, no power shutdown, no business interruption, which is why the program suits occupied blocks that must keep living normally during works.
Can it cover people’s homes and elderly residents?
Yes. The home layer adds smoke, gas, water-leak, door-contact and SOS devices, and the elderly-care layer keeps an activity profile so an unusual pattern prompts a welfare visit.
Can the platform be privately deployed or integrated?
The Jellyfish IoT platform supports private deployment and offers standard APIs, so government or operator platforms can integrate while keeping data inside their own domain.
Do the detectors need wiring or mains power?
No. The sensing layer is battery powered with a 3-5 year service life and installs without cabling or taking power from the building, so walls and decoration are untouched.
Can an existing fire alarm panel be kept in service?
Yes. Adding one WANLIN-921 user information transmission device networks a working legacy panel to the platform, so the original investment is preserved instead of scrapped.
Why Wanlin Fire
- Wireless-first design. No cabling, no power taking, minimal disruption - engineered specifically for occupied, aging buildings.
- Service backed. 4006-016-119 hotline with 7x24 response and a national service network; site visits to the platform and reference communities can be arranged.
- Reference projects. Published deployments include Shanghai Pudong International Airport, Shanghai Disney and Yadong Petrochemical.
- Offices in Beijing and Shenzhen. Beijing: Tongzhou District. Shenzhen: Longgang District. Manufacturing in Shenzhen.
- Platform owned end to end. The Jellyfish IoT platform is self-developed with 100+ software copyrights, so it can be customized and privately deployed.
- Hardware written in-house. From a single smoke detector to hosts, electricity and water-system monitoring - one supplier, one integration.
Request the survey and the numbers
If the existing panel still works, keep it and network it. If it does not, the wireless layer stands alone. Either way the community ends up monitored rather than merely equipped.
Next step: send the community address, building count and year of construction to wanlinfirecontrol@163.com or call 4006-016-119 / +86 132 6167 7119. A scoped point list, investment estimate and 30-day trial plan can be produced from the survey.
Evidence to request before award
Who pays for it - government, property company or residents?
Three published models: government investment from renovation special funds; property and owners co-construction through maintenance funds; or socialized operation where an operator invests and recovers cost through yearly service fees. The models can be mixed.
Will installation disturb residents?
Installation is minutes per point - no wall chasing, no power shutdown, no business interruption, which is why the program suits occupied blocks that must keep living normally during works.
Can it cover people’s homes and elderly residents?
Yes. The home layer adds smoke, gas, water-leak, door-contact and SOS devices, and the elderly-care layer keeps an activity profile so an unusual pattern prompts a welfare visit.
Also useful: the site FAQ section, the product center for current datasheets, and wanlinyun.com for the platform.