CN208844664U - A kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things - Google Patents
A kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things Download PDFInfo
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- CN208844664U CN208844664U CN201821055247.3U CN201821055247U CN208844664U CN 208844664 U CN208844664 U CN 208844664U CN 201821055247 U CN201821055247 U CN 201821055247U CN 208844664 U CN208844664 U CN 208844664U
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Abstract
The utility model discloses a kind of low power-consumption intelligent fire hydrants based on the communication of NB-IoT Internet of Things, its key points of the technical solution are that including fire hydrant, valve rod, hydraulic pressure sensor, water flow sensor, control circuit, detection circuit, wireless transmission circuit, locating module and power supply, valve rod is mounted on the water inlet of fire hydrant, hydraulic pressure sensor is arranged on valve rod, water flow sensor is arranged on the water stream channel in fire hydrant, wireless transmission circuit and locating module are each provided in fire hydrant, control circuit is arranged on fire hydrant, power supply connection driving hydraulic pressure sensor, water flow sensor, control circuit, detection circuit, wireless transmission circuit and locating module.A kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things of the utility model can carry out Internet of Things monitoring positioning to fire hydrant, the monitor and alarm in time with water of fire hydrant, the water of fire hydrant are remained alarm, fire hydrant is knocked or is damaged down early warning, hydraulic pressure real-time monitoring and alarm in fire hydrant pipeline.
Description
Technical field
The utility model relates to a kind of fire hydrants, more specifically, it be related to it is a kind of based on NB-IoT Internet of Things communication
Low power-consumption intelligent fire hydrant.
Background technique
Fire hydrant, a kind of fixed fire fighting device, fire hydrant are the important tool for ensureing fire brigade's fire extinguishing, main function
It is control combustible, isolation oxidizer, eliminates ignition source, is divided into indoor fire hydrant and outdoor fire hydrant.Outdoor fire hydrant is to set
The water facilities outside the building on fire water-supply pipe network is set, is given mainly for fire fighting truck from municipal water supply pipe network or outdoor fire fighting
Fire extinguishing is implemented in pipe network water intaking, can also be directly connected to water band, hydraulic giant goes out above-water method.Some fire fighting vehicles deliver water because of itself
Measure it is limited, fire extinguishing when also be badly in need of seek sources of water.At this moment, fire hydrant just plays huge water supply function.
Fire hydrant is mainly used for fire extinguishing water intaking and is used, therefore for using department as fire hydrant, how quickly to search out
Fire hydrant, fetch water it is quick and easy, be easy be fire department hope and requirement.But in actual life be usually carwash, greening,
Environmental sanitation, site construction etc. largely use water, often waste water, fire hydrant it is impaired multifarious, it is some to be located at by arterial street
Fire hydrant enclosed, bury by architectural engineering；Some fire hydrants are so closely besieged that not a drop of water could trickle through by vehicle, stand etc., can not connect at all,
Some has even been interrupted water supply, seriously threatens the smooth development of fire-fighting work, once fire occurs, these fire hydrants are by nothing
Method plays its due effect.Its deficiency and damage, constitutes a serious threat to the security of the lives and property of the common people.
As one of pipe network affiliated facility, maintenance management requires to establish special management team fire hydrant, carries out special
Management, once discovery fire hydrant failure should be treated as robbing in pipe network and quick-fried be handled in time.In addition to this it should also draft and offset fire
Regularly maintenance is implemented in the period repair and maintenance plan of bolt.But current outdoor fire hydrant quantity is relatively more, in real time
Supervision needs a large amount of manpower, and supervision is inconvenient, patrols with high costs.It needs to improve the means to fire hydrant management, effectively grasps
The problem of fire hydrant distribution and " fire hydrant failure ".
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide one kind to carry out object to fire hydrant
Connection monitoring positioning is monitored and is alarmed in time with water to fire hydrant, the water of fire hydrant residual is alarmed, fire hydrant is knocked down or damaged
The low power-consumption intelligent based on the communication of NB-IoT Internet of Things of hydraulic pressure real-time monitoring and alarm in early warning, fire hydrant pipeline disappears fire
Bolt.
To achieve the above object, the utility model provides following technical solution: one kind is communicated based on NB-IoT Internet of Things
Low power-consumption intelligent fire hydrant, including fire hydrant, valve rod, hydraulic pressure sensor, water flow sensor, control circuit, detection circuit,
Wireless transmission circuit, locating module and power supply, the valve rod are mounted on the water inlet of fire hydrant, are used to open or close the fire that disappears
The water inlet of bolt, the hydraulic pressure sensor is arranged on valve rod, for detecting the water pressures of nozzle outlet at valve rod, institute
It states on the water stream channel that water flow sensor is arranged in fire hydrant, for monitoring the water flow in fire hydrant, the detection electricity
Road is arranged in fire hydrant, and for detecting the real-time status of fire hydrant, the wireless transmission circuit and locating module, which are each provided at, to disappear
In fiery bolt, wireless transmission circuit is used to emit detection signal and receives the control signal of external Cloud Server, and locating module is used for
Fire hydrant is accurately positioned, the control circuit is arranged on fire hydrant, for receiving hydraulic pressure sensor, water flow sensing
The signal of device, detection circuit and locating module, and external cloud service is sent to by wireless transmission circuit after exporting processing signal
Device, the power supply connection drive hydraulic pressure sensor, water flow sensor, control circuit, detection circuit, wireless transmission circuit and determine
Position module.
The utility model is further arranged to: the control circuit is MCU microcontroller.
The utility model is further arranged to: the detection circuit includes falling sensor and buoyancy sensor, described to incline
Sensor and buoyancy sensor are electrically connected the input terminal of control circuit, detect toppling over for fire hydrant by falling sensor
Situation is able to detect streamflow regime in fire hydrant by buoyancy sensor.
The utility model is further arranged to: the falling sensor is ball dumping switch, and the buoyancy sensor is
Switch.
The utility model is further arranged to: the wireless transmission circuit includes NB-IoT chip module and bluetooth module,
The NB-IoT chip module and bluetooth module are electrically connected with the end I/O of control circuit.
The utility model is further arranged to: the locating module includes Beidou positioning chip and GPS positioning chip, north
Bucket positioning chip and GPS positioning chip are electrically connected with the end I/O of control circuit.
The utility model is further arranged to: the power supply includes lithium Asia battery and power management chip, the sub- electricity of the lithium
Pond is electrically connected the input terminal of power management chip, and the output end of the power management chip is separately connected hydraulic pressure sensor, water
Flow sensor, control circuit, detection circuit, wireless transmission circuit and locating module power end.
The utility model is further arranged to: the ball dumping switch is that 15 ° -45 ° of inclination angle range of adjustable ball is opened
It closes.
The utility model has an advantage that Intelligent hardware through the invention designs, and can carry out Internet of Things to fire hydrant
Monitoring positioning is monitored and is alarmed in time with water to fire hydrant, the water of fire hydrant residual is alarmed, fire hydrant is knocked down or damaged in advance
Alert, hydraulic pressure real-time monitoring and alarm in fire hydrant pipeline, can auxiliary water supply enterprise can quickly to fire hydrant into
Row maintenance, repairing；The reasonability of aid decision city fire hydrant layout；Reduce management, the maintenance cost of fire hydrant；It is sent out in fire behavior
Fire hydrant is quickly positioned when raw for fire brigade, support, the reasonability of aid decision city fire hydrant layout are provided, and had following
Function: 1) the position positioning of fire hydrant；2) fire hydrant with water is monitored and is alarmed in time；3) water of fire hydrant remains alarm；4)
Fire hydrant is knocked or is damaged down early warning；5) the hydraulic pressure real-time monitoring and alarm in fire hydrant pipeline.
Detailed description of the invention
Fig. 1 is the system principle diagram of the utility model；
Fig. 2 is the fire hydrant cross-sectional view of the utility model.
In figure: 1, fire hydrant；2, valve rod；3, hydraulic pressure sensor；4, water flow sensor；5, control circuit；6, detection electricity
Road；7, wireless transmission circuit；8, locating module；9, power supply；10, falling sensor；11, buoyancy sensor；12, NB-IoT chip
Module；13, bluetooth module；14, Beidou positioning chip；15, GPS positioning chip；16, lithium Asia battery；17, power management chip.
Specific embodiment
Shown in 2, a kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things of the present embodiment,
Including fire hydrant 1, valve rod 2, hydraulic pressure sensor 3, water flow sensor 4, control circuit 5, detection circuit 6, wireless transmission circuit
7, locating module 8 and power supply 9, the valve rod 2 are mounted on the water inlet of fire hydrant 1, are used to open or close fire hydrant 1
Water inlet, the hydraulic pressure sensor 3 is arranged on valve rod 2, for detecting the water pressures of 1 water outlet of fire hydrant at valve rod 2, institute
It states on the water stream channel that water flow sensor 4 is arranged in fire hydrant 1, for monitoring the water flow in fire hydrant 1, the detection
Circuit 6 is arranged in fire hydrant 1, for detecting the real-time status of fire hydrant 1, the wireless transmission circuit 7 and locating module 8
It is each provided in fire hydrant 1, wireless transmission circuit 7 is used to emit detection signal and receives the control signal of external Cloud Server, fixed
For being accurately positioned to fire hydrant 1, the control circuit 5 is arranged on fire hydrant 1 position module 8, passes for receiving hydraulic pressure
Sensor 3, water flow sensor 4, detection circuit 6 and locating module 8 signal, and export processing signal after by wireless transmission electricity
Road 7 is sent to external Cloud Server, the connection of the power supply 9 driving hydraulic pressure sensor 3, water flow sensor 4, control circuit 5, inspection
Slowdown monitoring circuit 6, wireless transmission circuit 7 and locating module 8.
The control circuit 5 is MCU microcontroller.
The detection circuit 6 includes falling sensor 10 and buoyancy sensor 11, and the falling sensor 10 and buoyancy pass
Sensor 11 is electrically connected the input terminal of control circuit 5, topples over situation by the detection fire hydrant 1 of falling sensor 10, passes through
Buoyancy sensor 11 is able to detect streamflow regime in fire hydrant 1.
The falling sensor 10 is ball dumping switch, and the buoyancy sensor 11 is switch.
The wireless transmission circuit 7 includes NB-IoT chip module 12 and bluetooth module 13, the NB-IoT chip module
12 and bluetooth module 13 with the end I/O of control circuit 5 be electrically connected.
The locating module 8 includes Beidou positioning chip 14 and GPS positioning chip 15, and Beidou positioning chip 14 and GPS are fixed
Position chip 15 is electrically connected with the end I/O of control circuit 5.
The power supply 9 includes 9 managing chip 17 of lithium Asia battery 16 and power supply, and lithium Asia battery 16 is electrically connected power supply 9
The input terminal of managing chip 17, the output end of 9 managing chip 17 of power supply are separately connected hydraulic pressure sensor 3, water flow sensing
Device 4, control circuit 5, detection circuit 6, wireless transmission circuit 7 and locating module 89 end of power supply.
The adjustable ball that the ball dumping switch is 15 ° -45 ° of inclination angle range switchs.
By using above-mentioned technical proposal, main component illustrates:
1, the present apparatus mainly includes the mechanical structure and intelligent object of fire hydrant 1.
2, intelligent object mainly includes control panel hardware circuit and software program.
3, control panel hardware circuit then specifically includes that battery 16, NB-IoT module, Bluetooth chip, MCU microcontroller, north
Struggle against positioning chip 14, ball dumping switch, the switch for detecting water outlet, hydraulic pressure sensor.
4, battery 16 using 3.6V lithium Asia battery 16, by after buck or boost chip processing to MCU and other each cores
Piece is powered on demand.
5, NB-IoT modules include NB-IoT chip, antenna, sim card slot, and the dedicated Internet of Things card insertion of NB-IoT is entered SIM card
Slot, data are sent to the base station of network provider after NB-IoT chip processing.
6, MCU microcontrollers handle chip using 32 low-power consumption, include Cortex-M4 kernel, FLASH, RAM
Equal circuits, built-in core algorithm program and network security program.
7, locating module 8 includes positioning chip and antenna, and positioning chip can receive the number of big-dipper satellite and GPS satellite simultaneously
According to preferential to select big-dipper satellite data.
8, falling sensor 10 uses 15 ° of -45 ° of adjustable ball switch of inclination angle range.
9, water present sensor uses switch, including float cavity, float, jackshaft, normally opened circuit built in jackshaft,
Circuit is just connected after float contact jackshaft.
10, hydraulic pressure sensor is powered using 5V, exports 0-5V voltage signal, range 0-1.6MPa, precision 0.5%.
11, water flow sensor 4 uses Hall water flow sensor 4, counts water flow by step-by-step counting.
Working principle:
1, which mainly realizes that positioning function, the warning function of leak stolen water, that fire hydrant 1 topples over warning function, water is residual
Stay warning function, identification legal with water function, theft tracking function, water pressure monitoring function.
2, positioning function: positioning chip receives satellite-signal by antenna, will indicate the longitude and latitude degree of geographical location information
According to sending MCU to, MCU is received after data according to protocol analysis data packet, extracts available longitude and latitude data, and the data are led to
NB-IoT is crossed to be ultimately routed to show visual geographical location in the end PC software or cell phone application.
3, leak stolen water warning function: when 1 valve of fire hydrant is opened, water can be full of entire 1 body of fire hydrant at once, while into
Enter float cavity, float floating trigger circuit switch conduction, MCU Programmable detection to chip corresponds to the corresponding state of pin, through filtering
Effective data are obtained after wave algorithm process, and the data are ultimately routed on the end PC software or cell phone application by NB-IoT
Corresponding leak stolen water is prompted to alarm.
4, fire hydrant 1 topples over alarm: 1 normal condition of fire hydrant is perpendicular to ground, when fire hydrant 1 is to any one side
To when swinging to ground, as long as inclination angle is greater than the angle of setting, it will trigger at once and topple over exploitation circuit conducting, MCU Programmable detection
The corresponding state of pin is corresponded to chip, effective data are obtained after filtering algorithm is handled, and the data are passed through into NB-
IoT is ultimately routed to prompt in the end PC software or cell phone application and topples over alarm.
5, water residual alarm: 1 pedestal of fire hydrant has a drain valve, and after 1 valve of fire hydrant is closed, water can be let out from drain valve
Complete, this is in order to avoid the water freezing under freezing weather in fire hydrant 1 supports bad fire hydrant 1.The present apparatus is the case where water remains
Under can trigger the conducting of switch circuit, MCU Programmable detection to chip corresponds to the corresponding state of pin, handles by filtering algorithm
After obtain effective data, and the data are ultimately routed to prompt water residual on the end PC software or cell phone application by NB-IoT
Alarm.
6, identification is legal to use water function: the present apparatus can be by bluetooth communication periodic broadcasting data, when legal use
When the water of family, the cell phone application of user has response data back to the device, and MCU is recognized by data, after confirmation is legitimate user
It is automatic to cancel stolen water alarm.
7, steal tracking function: when the device or entire fire hydrant 1 are stolen, after MCU detects that device is mobile, starting is real-time
Latitude and longitude information is reported, the longitude and latitude entirely on theft path so is all recorded on software, and public security organ will utilize quickly
The data find criminal.
8, water pressure monitoring function: hydraulic pressure is converted into the voltage signal of 0-5V by hydraulic pressure sensor, after filter circuit, into
One step converts analog signals into digital signal through the AD conversion of MCU, then handles through program and be converted into identifiable project amount, and
The data are ultimately routed to show the pressure value as unit of MPa on the end PC software or cell phone application by NB-IoT.
9, water metering function: water flow velocity is converted into pulse signal by Hall water flow sensor 4, by filtering processing
Afterwards, in conjunction with the size of water outlet bore, it is further converted into the size of flow with step-by-step counting, and the data are passed through into NB-IoT most
It is sent to the flow shown in the end PC software or cell phone application with water eventually.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (9)
1. it is a kind of based on NB-IoT Internet of Things communication low power-consumption intelligent fire hydrant, it is characterised in that: including fire hydrant, valve rod,
Hydraulic pressure sensor, water flow sensor, control circuit, detection circuit, wireless transmission circuit, locating module and power supply, the valve
Bar is mounted on the water inlet of fire hydrant, is used to open or closes the water inlet of fire hydrant, and the hydraulic pressure sensor is arranged in valve
On bar, for detecting the water pressures of nozzle outlet at valve rod, the water in fire hydrant is arranged in the water flow sensor
On circulation road, for monitoring the water flow in fire hydrant, the detection circuit is arranged in fire hydrant, for detecting fire hydrant
Real-time status, the wireless transmission circuit and locating module are each provided in fire hydrant, and wireless transmission circuit is for emitting detection letter
Number and receive the control signal of external Cloud Server, locating module is for being accurately positioned fire hydrant, the control circuit
It is arranged on fire hydrant, for receiving hydraulic pressure sensor, water flow sensor, detection circuit and the signal of locating module, and it is defeated
External Cloud Server, power supply connection the driving hydraulic pressure sensor, water are sent to by wireless transmission circuit after processing signal out
Flow sensor, control circuit, detection circuit, wireless transmission circuit and locating module.
2. a kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things according to claim 1, feature exist
In: the control circuit is MCU microcontroller.
3. a kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things according to claim 1, feature exist
In: the detection circuit includes falling sensor and buoyancy sensor, and the falling sensor and buoyancy sensor electrically connect
The input terminal of connection control circuit is toppled over situation by falling sensor detection fire hydrant, is able to detect by buoyancy sensor
Streamflow regime in fire hydrant.
4. a kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things according to claim 3, feature exist
In: the hydraulic pressure sensor is mounted on valve rod, and the buoyancy sensor is mounted on valve rod.
5. a kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things according to claim 3, feature exist
In: the falling sensor is ball dumping switch, and the buoyancy sensor is switch.
6. a kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things according to claim 2, feature exist
In: the wireless transmission circuit include NB-IoT chip module and bluetooth module, the NB-IoT chip module and bluetooth module
It is electrically connected with the end I/O of control circuit.
7. a kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things according to claim 2, feature exist
In: the locating module include Beidou positioning chip and GPS positioning chip, Beidou positioning chip and GPS positioning chip with control
The end I/O of circuit processed is electrically connected.
8. a kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things according to claim 1, feature exist
In: the power supply includes lithium Asia battery and power management chip, and lithium Asia battery is electrically connected the input of power management chip
End, the output end of the power management chip be separately connected hydraulic pressure sensor, water flow sensor, control circuit, detection circuit,
The power end of wireless transmission circuit and locating module.
9. a kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things according to claim 5, feature exist
In: the adjustable ball that the ball dumping switch is 15 ° -45 ° of inclination angle range switchs.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821055247.3U CN208844664U (en) | 2018-07-04 | 2018-07-04 | A kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821055247.3U CN208844664U (en) | 2018-07-04 | 2018-07-04 | A kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things |
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| CN208844664U true CN208844664U (en) | 2019-05-10 |
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| CN201821055247.3U Active CN208844664U (en) | 2018-07-04 | 2018-07-04 | A kind of low power-consumption intelligent fire hydrant based on the communication of NB-IoT Internet of Things |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295651A (en) * | 2019-07-11 | 2019-10-01 | 浙江创力电子股份有限公司 | A kind of intelligence outdoor fire hydrant |
| CN110398312A (en) * | 2019-08-16 | 2019-11-01 | 湖南启泰传感科技有限公司 | A kind of intelligence outdoor fire hydrant remote water pressure monitoring terminal and intelligent outdoor fire hydrant |
| CN111298353A (en) * | 2020-04-17 | 2020-06-19 | 应急管理部天津消防研究所 | Water pressure acquisition monitoring system and monitoring method for fire hydrant water supply device |
| CN111298347A (en) * | 2020-04-02 | 2020-06-19 | 合肥科大立安安全技术有限责任公司 | Intelligent fire hydrant |
| CN111827410A (en) * | 2020-06-30 | 2020-10-27 | 西安工程大学 | Fire hydrant system with locate function |
| CN112376647A (en) * | 2020-11-09 | 2021-02-19 | 杭州智缤科技有限公司 | Outdoor water intaking bolt device based on 5G technique |
| CN113342071A (en) * | 2021-06-01 | 2021-09-03 | 南京紫峰水务装备有限公司 | Intelligent control device for pipeline gate valve |
| CN113374033A (en) * | 2021-06-17 | 2021-09-10 | 杭州智缤科技有限公司 | Water consumption management scheme based on outdoor intelligent fire hydrant |
| CN113470292A (en) * | 2021-06-17 | 2021-10-01 | 杭州智缤科技有限公司 | Intelligent fire hydrant theft tracking scheme |
| CN113797474A (en) * | 2021-09-24 | 2021-12-17 | 上海基申智能科技有限公司 | Intelligent fire hydrant system and control method |
| CN113865651A (en) * | 2021-10-20 | 2021-12-31 | 杭州智缤科技有限公司 | Fire hydrant monitoring system and monitoring method |
| CN115463369A (en) * | 2022-09-22 | 2022-12-13 | 杭州申弘智能科技有限公司 | Fire fighting equipment |
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2018
- 2018-07-04 CN CN201821055247.3U patent/CN208844664U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295651A (en) * | 2019-07-11 | 2019-10-01 | 浙江创力电子股份有限公司 | A kind of intelligence outdoor fire hydrant |
| CN110398312B (en) * | 2019-08-16 | 2024-04-05 | 湖南启泰传感科技有限公司 | Intelligent outdoor hydrant remote water pressure monitoring terminal and intelligent outdoor hydrant |
| CN110398312A (en) * | 2019-08-16 | 2019-11-01 | 湖南启泰传感科技有限公司 | A kind of intelligence outdoor fire hydrant remote water pressure monitoring terminal and intelligent outdoor fire hydrant |
| CN111298347A (en) * | 2020-04-02 | 2020-06-19 | 合肥科大立安安全技术有限责任公司 | Intelligent fire hydrant |
| CN111298353A (en) * | 2020-04-17 | 2020-06-19 | 应急管理部天津消防研究所 | Water pressure acquisition monitoring system and monitoring method for fire hydrant water supply device |
| CN111827410A (en) * | 2020-06-30 | 2020-10-27 | 西安工程大学 | Fire hydrant system with locate function |
| CN112376647A (en) * | 2020-11-09 | 2021-02-19 | 杭州智缤科技有限公司 | Outdoor water intaking bolt device based on 5G technique |
| CN113342071A (en) * | 2021-06-01 | 2021-09-03 | 南京紫峰水务装备有限公司 | Intelligent control device for pipeline gate valve |
| CN113470292A (en) * | 2021-06-17 | 2021-10-01 | 杭州智缤科技有限公司 | Intelligent fire hydrant theft tracking scheme |
| CN113374033A (en) * | 2021-06-17 | 2021-09-10 | 杭州智缤科技有限公司 | Water consumption management scheme based on outdoor intelligent fire hydrant |
| CN113797474A (en) * | 2021-09-24 | 2021-12-17 | 上海基申智能科技有限公司 | Intelligent fire hydrant system and control method |
| CN113865651A (en) * | 2021-10-20 | 2021-12-31 | 杭州智缤科技有限公司 | Fire hydrant monitoring system and monitoring method |
| CN115463369A (en) * | 2022-09-22 | 2022-12-13 | 杭州申弘智能科技有限公司 | Fire fighting equipment |
| CN115463369B (en) * | 2022-09-22 | 2023-04-07 | 杭州申弘智能科技有限公司 | Fire fighting equipment |
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