CN107503399A - A kind of antitheft water monitoring system of outdoor fire hydrant - Google Patents
A kind of antitheft water monitoring system of outdoor fire hydrant Download PDFInfo
- Publication number
- CN107503399A CN107503399A CN201710635551.9A CN201710635551A CN107503399A CN 107503399 A CN107503399 A CN 107503399A CN 201710635551 A CN201710635551 A CN 201710635551A CN 107503399 A CN107503399 A CN 107503399A
- Authority
- CN
- China
- Prior art keywords
- microprocessor
- fire hydrant
- microswitch
- rfid identification
- outdoor fire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
Abstract
The invention discloses a kind of antitheft water monitoring system of outdoor fire hydrant, including monitoring device, and the electronic tag on the boring cover of fire hydrant with the interface of fire hose is installed in respectively；Monitoring device includes microprocessor, radio transmitting device, microswitch and the RFID identification device for data in reading electronic labels；Microswitch is sheathed on outside the valve rod of the flap for opening and closing fire hydrant, and RFID identification device is installed on the valve body of fire hydrant；The output end of the input electrical connection RFID identification device of microprocessor, microswitch electrically connects the input of microprocessor, microprocessor is connected by radio transmitting device with monitor supervision platform, and the result and the state of microswitch that microprocessor is read by RFID identification device act accordingly.Be monitored by microswitch and RFID identification device alternative sensor, can distinguish exactly fire hydrant be in just conventional water state and it is improper use water state, it is and simple in construction.
Description
Technical field
The present invention relates to fire-fighting domain, more specifically to a kind of antitheft water monitoring system of outdoor fire hydrant.
Background technology
It is public outdoor to be largely distributed in street, cell etc. as the important fire fighting device to fight a fire for outdoor fire hydrant
Place, it is difficult that this results in outdoor fire hydrant protection, it is easy to which, by stolen water, the phenomenon of such stolen water not only causes to public resource
Infringement, the efficiency of fire fighting truck fire extinguishing is can also affect on what is more, therefore, outdoor fire hydrant has anti-stealing water function is necessary
's.However, the antitheft water monitoring system of existing outdoor fire hydrant, more there is electronic unit, the higher and overall system of cost
Unite the problem of complex, electronic unit is more to mean that system overall power dissipation is larger, and so, battery can not supply for a long time
Answer each part continuous firing.And make it that monitoring system is complex because electronic unit is more, it is not easy to installation, maintenance.This
Outside, the antitheft water monitoring system of outdoor fire hydrant can normally only judge the streamflow regime of fire hydrant, i.e. outdoor fire hydrant at present
Whether used, and can not differentiate fire hydrant is illegally used by fire fighting truck normal use, or by criminal, is thus existed
The situation of false alarm occurs, and reliability is relatively low.In addition, current antitheft water monitoring system is wirelessly connected with corresponding platform
Connect, then artificially determine whether just to commonly use water, so consume manpower and time.
The content of the invention
It is an object of the invention to provide a kind of antitheft water monitoring system of outdoor fire hydrant, and it has the function of safety water,
And false alarm can be avoided, and low cost, low-power consumption.
To reach above-mentioned purpose, solution of the invention is：
A kind of antitheft water monitoring system of outdoor fire hydrant, including monitoring device, and outdoor fire hydrant is installed in respectively
Boring cover on and fire hose interface electronic tag, the monitoring device includes microprocessor, radio transmitting device, micro-
Dynamic switch and for reading in the electronic tag on the outdoor fire hydrant RFID identification device of data, described micro-
Dynamic switch sleeve is located at outside the valve rod for the flap for being used for opening and closing the outdoor fire hydrant, and the RFID identification device is installed in
On the valve body of the outdoor fire hydrant；
The respective input of the microprocessor electrically connects the output end of the RFID identification device, the microswitch electricity
The respective input of the microprocessor is connected, the microprocessor is carried out by the radio transmitting device and a monitor supervision platform
Communication connection, and the result that is read by the RFID identification device of the microprocessor and the state of the microswitch are made
Corresponding actions.
Also include the battery of powering load, the microprocessor, the radio transmitting device and the battery are equal
It is installed on the valve body；Or also including the solar components of powering load, the solar components include solar-electricity
Pond plate, charge-discharge control circuit and rechargeable battery, the solar panel are installed in the upper surface of the valve body, micro- place
Reason device, the radio transmitting device, the charge-discharge control circuit and the rechargeable battery are installed on the valve body, it is described too
Positive energy cell panel electrically connects the input of the charge-discharge control circuit, and the charge-discharge control circuit is double with the rechargeable battery
To connection, the power output end of the charge-discharge control circuit electrically connects the load.
The load includes the microprocessor, the radio transmitting device and the microswitch.
The interface of the outdoor fire hydrant and city planting ductwork is equiped with valve, described in the drive end electrical connection of the valve
The control terminal of microprocessor.
Buzzer is installed, the corresponding output end of the microprocessor electrically connects the buzzer on the valve body.
The valve body has the water side stretched along one epitaxial lateral overgrowth, and the water side detachably connects with the fire hose
Connect, the water side can be also detachably connected with the boring cover.
After said structure, the present invention has the advantages that：The present invention is filled by microswitch and RFID identification
Put alternative sensor and carry out antitheft water monitoring, and from synthesis of both microswitch and RFID identification device, can be exactly
Difference outdoor fire hydrant be in just conventional water state or it is improper use water state, to avoid false alarm, and antitheft water monitoring
System has the characteristics of simple in construction, number of devices is few low with cost.
Brief description of the drawings
Fig. 1 is the structure sectional view of the present invention.
Fig. 2 is the structural representation of fire hose.
The circuit that Fig. 3 is the present invention connects block diagram.
Another circuit that Fig. 4 is the present invention connects block diagram.
Fig. 5 is that the circuit of solar components connects block diagram.
In figure：
11- valve body 12- valve rods
13- water sides 14- boring covers
15- open-close on-offs the first electronic tags of 21-
22- the second electronic tag 3- fire hoses
31- hose coupling 41- microswitches
42-RFID identification devices
Embodiment
In order to which technical scheme is explained further, the present invention is explained in detail below by specific embodiment
State.
A kind of antitheft water monitoring system of outdoor fire hydrant, as Figure 1-5, the present invention are the outdoor fire hydrants in routine
On the basis of the improvement made, this antitheft water monitoring system includes monitoring device and electronic tag.
As Figure 1-3, outdoor fire hydrant includes valve body 11, flap, valve rod 12, boring cover 14 and open-close on-off 15, valve body
11 have the water side 13 to stretch out along the side of its lateral wall, and boring cover 14 is installed at water side 13, and open-close on-off 15 is pressed
Usual manner is arranged at the top of valve body 11, and is connected with the upper end of valve rod 12, the lower end of valve rod 12 in the usual way with flap
It is connected.Routinely, outdoor fire hydrant from valve body 11 in use, artificially disassemble boring cover 14, then by fire hose 3
It is attached with water side 13.
Electronic tag includes the first electronic tag 21 and the second electronic tag 22, and the first electronic tag 21 is installed in boring cover 14
On, the second electronic tag 22 is installed at the hose coupling 31 of fire hose 3.In the present invention, the fire hose 3 of fire house
The second electronic tag 22 can be equipped.
Monitoring device includes microprocessor, radio transmitting device, microswitch 41 and RFID identification device 42.Microswitch
41 are placed on outside the upper end of valve rod 12, for judging whether outdoor fire hydrant is opened.In the present embodiment, when outdoor fire hydrant is closed
When, i.e., valve rod 12 is in not operating state, and now microswitch 41 is in opening；When outdoor fire hydrant is opened, i.e. valve
Bar 12 acts, and now microswitch 41 senses the action of valve rod 12 and switches to closure state.RFID identification device 42 and
One electronic tag 21 and the second electronic tag 22 match, for reading the number in first, second electronic tag 21,22
According to, also, RFID identification device is installed on valve body 11.Specifically, conventional boring cover 14 is connected by cover plate with annular gusset
Form, the annular gusset of boring cover 14 is placed on outside foregoing water side 13, and the annular gusset of boring cover 14 and the outside of water side 13
Wall is bonded to each other fixing and linked together, and cover plate is sealed the delivery port of water side 13, the first above-mentioned electronic tag 21
It is installed on the lateral wall of annular gusset of boring cover 14, it is preferred that the annular of boring cover 14 is stretched out in the part of the first electronic tag 21
The end of gusset；RFID identification device be installed on water side 13 corresponding to valve body 11 lateral wall between boring cover 14, also,
After boring cover 14 is installed, RFID identification device is corresponding with the first electronic tag 21.In addition, the second foregoing electronic tag 22 is installed in
On lateral wall at the hose coupling 31 of fire hose 3, after fire hose 3 is installed on water side 13 in the usual way, water band connects
The second electronic tag 22 on mouth 31 is corresponding with RFID identification device.Because RFID identification device is in 14 annular gusset of boring cover
Rear, and difference in height between the two be present, therefore RFID identification device can avoid being exposed to the sun for the sun to a certain extent, improve
The service life of RFID identification device.
Microprocessor is communicatively coupled by radio transmitting device and a monitor supervision platform, the respective input of microprocessor
Microswitch 41 is electrically connected, microswitch 41 transmits current state into microprocessor, the respective input electricity of microprocessor
The output end of RFID identification device 42 is connected, RFID identification device 42 is transmitted result is read into microprocessor, wherein, read
As a result it is：1) data, are not read；2) data of the first electronic tag 21 or the second electronic tag 22, are read；If
A kind of situation, then mean that boring cover 14 disassembles from valve body 11, moreover, not connecting fire hose 3 at water side 13；
If the second situation, then mean that boring cover 14 disassembles from valve body 11, but fire hose 3 be connected with water side 13,
Or boring cover 14 is still arranged on valve body 11 and corresponded at water side 14.Moreover, microprocessor according to the state of microswitch 41 and
The reading result of RFID identification device 42 is acted accordingly.In the present embodiment, monitor supervision platform is the unit of related fire-fighting.
Specifically, under normal condition, microswitch 41 is in opening, and now flap is closed, fire-fighting
Water does not flow out, and RFID identification device 42 can read the data in the first label 21, i.e. RFID identification device 42 detects
First electronic tag 21 is still on outdoor fire hydrant；In other words, microprocessor is in opening and according to microswitch 41
The presence of one electronic tag 21 judges that outdoor fire hydrant is under normal condition, therefore microprocessor is without subsequent action.Just
Under conventional water state, flap is opened by conventional methods, makes fire water flow out, outdoor fire hydrant is in opening, now micro-
Dynamic switch 41 senses that valve rod 12 acts and switches to closure state, meanwhile, the boring cover 14 with the first electronic tag 21 is from valve
Disassembled on body 11, and the fire hose 3 of the second electronic tag 22 is installed and water side 13 is connected, RFID identification device 42
The data in the second electronic tag 22 are read, i.e. RFID identification device 42 detects that the second electronic tag 22 is present in outdoor and disappeared
On fiery bolt；In other words, microprocessor is in closure state according to microswitch 41 and the second electronic tag 22 is present in outdoor and disappeared
On fiery bolt, judge that outdoor fire hydrant is under just conventional water state, therefore microprocessor no longer carries out subsequent action；It is improper to use water
When, flap is opened by conventional methods, makes fire water flow out, and outdoor fire hydrant is opened, and now microswitch 41 senses valve rod
12 act and close, meanwhile, the boring cover 14 with the first label 21 also disassembles from valve body 11, therefore RFID identification device 42 does not have
There are the data read in the first electronic tag 21 and the second electronic tag 22, i.e. RFID identification device 42 can't detect the first electricity
The presence of the electronic tag 22 of subtab 21 and second；In other words, microprocessor does not read the first electricity according to RFID identification device
The presence of the electronic tag 22 of subtab 21 and second, and microswitch 41 are in closure state and judge that outdoor fire hydrant is in non-
Normal water state, i.e. outdoor fire hydrant are in stolen water state, now microprocessor by radio transmitting device by alarm signal
Monitor supervision platform is transferred to, reminds related fire units someone just in stolen water.
Preferably, as shown in figure 4, the interface of outdoor fire hydrant and city planting ductwork is equiped with valve in the usual way, this
The control terminal of the drive end electrical connection microprocessor of valve, to be controlled by microprocessor to valve, also, normal condition
When, this electric control valve is in opening, when microprocessor judge outdoor fire hydrant for example it is foregoing in it is improper with water when, micro- place
Reason device closes control valve, makes fire water not flow out, can be in the very first time automatically when stolen water situation occurs to realize
Close outdoor fire hydrant.Wherein, valve can be conventional electromagnetic valve or electric control valve.
Preferably, buzzer is installed on the valve body 11 of outdoor fire hydrant, the corresponding output end electrical connection of this microprocessor
Buzzer, when microprocessor judge outdoor fire hydrant for example it is foregoing in it is improper with water when, microprocessor by control buzzer open
Open, send sound, play a part of warning water-robbery person, remind surrounding population.
Further, as shown in Figure 1 and as shown in figure 5, present invention additionally comprises the battery for having powering load, and load
Including microprocessor, radio transmitting device, RFID identification device 42 and microswitch 41, and valve and buzzer.Or this
Invention can also be powered by solar components to load, and solar components include solar panel, charge and discharge control
Circuit and rechargeable battery, solar panel is installed at the top surface of valve body 11, in order to make solar panel is maximum
Sunshine is received, solar panel electrically connects the input of charge-discharge control circuit, charge-discharge control circuit and rechargeable battery
It is bi-directionally connected, and the power output end of charge-discharge control circuit electrically connects above-mentioned load, in the present embodiment, loads as microprocessor
Device, radio transmitting device, RFID identification device 42, microswitch 41, buzzer and valve.
Further, microprocessor, radio transmitting device, charge-discharge control circuit and rechargeable battery are mounted on valve body 11
Close at boring cover 14.
It is preferred that microprocessor, radio transmitting device, charge-discharge control circuit and rechargeable battery are integrated in same pcb board
On.It is preferred that this pcb board is installed on valve body 11 by a seal box.
In the present invention, radio transmitting device carries out communications by GPRS or GSM, microprocessor use using ARM as
The STM32 single-chip microcomputers of core.
It the foregoing is only the preferred embodiment of the present embodiment, all equivalent changes done with scope of the invention as claimed
And modification, scope of the presently claimed invention all should be belonged to.
Claims (6)
- A kind of 1. antitheft water monitoring system of outdoor fire hydrant, it is characterised in that：Including monitoring device, and room is installed in respectively Include microprocessor, wireless biography with the electronic tag of the interface of fire hose, the monitoring device on the boring cover of outer fire hydrant Defeated device, microswitch and the RFID identification dress for reading the data in the electronic tag on the outdoor fire hydrant Put, the microswitch is sheathed on outside the valve rod of the flap for opening and closing the outdoor fire hydrant, the RFID identification Device is installed on the valve body of the outdoor fire hydrant；The respective input of the microprocessor electrically connects the output end of the RFID identification device, the microswitch electrical connection The respective input of the microprocessor, the microprocessor are communicated by the radio transmitting device with a monitor supervision platform Connection, and the result that is read by the RFID identification device of the microprocessor and the state of the microswitch are made accordingly Action.
- A kind of 2. antitheft water monitoring system of outdoor fire hydrant according to claim 1, it is characterised in that：Also include to negative The battery of power supply is carried, the microprocessor, the radio transmitting device and the battery are assembled on the valve body；Or Person also includes the solar components of powering load, and the solar components include solar panel, charge-discharge control circuit And rechargeable battery, the solar panel are installed in the top surface of the valve body, the microprocessor, described dress is wirelessly transferred Put, the charge-discharge control circuit and the rechargeable battery are installed on the valve body, the solar panel electrical connection institute The input of charge-discharge control circuit is stated, the charge-discharge control circuit is bi-directionally connected with the rechargeable battery, the discharge and recharge The power output end of control circuit electrically connects the load.
- A kind of 3. antitheft water monitoring system of outdoor fire hydrant according to claim 2, it is characterised in that：The load bag Include the microprocessor, the radio transmitting device and the microswitch.
- A kind of 4. antitheft water monitoring system of outdoor fire hydrant according to claim 1, it is characterised in that：The outdoor disappears The interface of fiery bolt and city planting ductwork is equiped with valve, and the drive end of the valve electrically connects the control terminal of the microprocessor.
- A kind of 5. antitheft water monitoring system of outdoor fire hydrant according to claim 1, it is characterised in that：On the valve body Buzzer is installed, the corresponding output end of the microprocessor electrically connects the buzzer.
- A kind of 6. antitheft water monitoring system of outdoor fire hydrant according to claim 1, it is characterised in that：The valve body tool There is the water side stretched along one epitaxial lateral overgrowth, the water side is detachably connected with the fire hose, and the water side also can It is enough to be detachably connected with the boring cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710635551.9A CN107503399A (en) | 2017-07-28 | 2017-07-28 | A kind of antitheft water monitoring system of outdoor fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710635551.9A CN107503399A (en) | 2017-07-28 | 2017-07-28 | A kind of antitheft water monitoring system of outdoor fire hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107503399A true CN107503399A (en) | 2017-12-22 |
Family
ID=60690179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710635551.9A Pending CN107503399A (en) | 2017-07-28 | 2017-07-28 | A kind of antitheft water monitoring system of outdoor fire hydrant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107503399A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512899A (en) * | 2018-02-09 | 2018-09-07 | 深圳日海物联技术有限公司 | The tamper monitoring system and gas heater tamper monitoring method of gas heater |
| CN109200523A (en) * | 2018-09-14 | 2019-01-15 | 湖北悟空智联电子科技有限公司 | A kind of remote monitoring system for fire hydrant |
| CN110519279A (en) * | 2019-08-30 | 2019-11-29 | 南安昌晟消防科技有限公司 | The system for monitoring Outdoor Fire Hydrant water exception |
| WO2021228990A1 (en) * | 2020-05-13 | 2021-11-18 | Schneiders, Servatius | Actuating device for a shutoff device, more particularly for a hydrant, hydrant system and water withdrawal fitting |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030107485A1 (en) * | 2001-12-07 | 2003-06-12 | Michael Zoratti | Fire hydrant anti-tamper device |
| US20060037224A1 (en) * | 2004-08-19 | 2006-02-23 | Lienau William A | System and method of displaying a notice tag for out-of-service equipment |
| CN203849822U (en) * | 2014-03-10 | 2014-09-24 | 张湧 | Fire hydrant antitheft alarm system |
| CN104240417A (en) * | 2014-08-26 | 2014-12-24 | 苏州市职业大学 | Fire hydrant water anti-theft warning device based on passive wireless Internet of Things |
| CN105288923A (en) * | 2015-11-13 | 2016-02-03 | 深圳市开天源自动化工程有限公司 | Monitoring system for intelligent fire hydrant and intelligent fire hydrant |
| CN205163995U (en) * | 2015-11-13 | 2016-04-20 | 深圳市开天源自动化工程有限公司 | Intelligence fire hydrant |
| CN205399560U (en) * | 2016-03-09 | 2016-07-27 | 广州市云剑电子技术有限公司 | Intelligence fire hydrant |
| KR101685079B1 (en) * | 2016-05-30 | 2016-12-09 | (주)케이앤엘정보시스템 | RFID-based management system of fire hydrants |
| CN207260246U (en) * | 2017-07-28 | 2018-04-20 | 福建天广消防有限公司 | A kind of antitheft water monitoring system of outdoor fire hydrant |
-
2017
- 2017-07-28 CN CN201710635551.9A patent/CN107503399A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030107485A1 (en) * | 2001-12-07 | 2003-06-12 | Michael Zoratti | Fire hydrant anti-tamper device |
| US20060037224A1 (en) * | 2004-08-19 | 2006-02-23 | Lienau William A | System and method of displaying a notice tag for out-of-service equipment |
| CN203849822U (en) * | 2014-03-10 | 2014-09-24 | 张湧 | Fire hydrant antitheft alarm system |
| CN104240417A (en) * | 2014-08-26 | 2014-12-24 | 苏州市职业大学 | Fire hydrant water anti-theft warning device based on passive wireless Internet of Things |
| CN105288923A (en) * | 2015-11-13 | 2016-02-03 | 深圳市开天源自动化工程有限公司 | Monitoring system for intelligent fire hydrant and intelligent fire hydrant |
| CN205163995U (en) * | 2015-11-13 | 2016-04-20 | 深圳市开天源自动化工程有限公司 | Intelligence fire hydrant |
| CN205399560U (en) * | 2016-03-09 | 2016-07-27 | 广州市云剑电子技术有限公司 | Intelligence fire hydrant |
| KR101685079B1 (en) * | 2016-05-30 | 2016-12-09 | (주)케이앤엘정보시스템 | RFID-based management system of fire hydrants |
| CN207260246U (en) * | 2017-07-28 | 2018-04-20 | 福建天广消防有限公司 | A kind of antitheft water monitoring system of outdoor fire hydrant |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512899A (en) * | 2018-02-09 | 2018-09-07 | 深圳日海物联技术有限公司 | The tamper monitoring system and gas heater tamper monitoring method of gas heater |
| CN109200523A (en) * | 2018-09-14 | 2019-01-15 | 湖北悟空智联电子科技有限公司 | A kind of remote monitoring system for fire hydrant |
| CN110519279A (en) * | 2019-08-30 | 2019-11-29 | 南安昌晟消防科技有限公司 | The system for monitoring Outdoor Fire Hydrant water exception |
| WO2021228990A1 (en) * | 2020-05-13 | 2021-11-18 | Schneiders, Servatius | Actuating device for a shutoff device, more particularly for a hydrant, hydrant system and water withdrawal fitting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107503399A (en) | A kind of antitheft water monitoring system of outdoor fire hydrant | |
| CN105649143B (en) | The intelligent fire hydrant of automatic charging | |
| CN106226474A (en) | Sf6 online monitoring alarm device | |
| CN110398312A (en) | A kind of intelligence outdoor fire hydrant remote water pressure monitoring terminal and intelligent outdoor fire hydrant | |
| CN205259220U (en) | Novel light current well | |
| CN207260246U (en) | A kind of antitheft water monitoring system of outdoor fire hydrant | |
| CN105625513B (en) | It is a kind of can preventing water burglary, the fire hydrant of leak | |
| CN104655192A (en) | Gas volume and gas leakage intelligent remote monitoring system for liquid gas storage tank | |
| CN104460435B (en) | Intelligent remote monitoring system of liquid gas storage tank | |
| CN205751133U (en) | A kind of household safe controls device | |
| CN208137027U (en) | A kind of intelligent outdoor fire hydrant | |
| CN112121349A (en) | Outdoor fire hydrant internet of things monitoring system and method | |
| CN202303955U (en) | Gas water heater with function of monitoring and alarming harmful gas and temperature | |
| CN207852033U (en) | A kind of Household security system | |
| CN206790657U (en) | A kind of base station storage batteries temperature control anti-theft monitoring system | |
| CN210804664U (en) | Fire hydrant water theft prevention monitoring device | |
| CN209400930U (en) | Substation's contour extraction | |
| KR20100054199A (en) | Wireless manhole monitoring apparatus using directional antenna | |
| CN201945847U (en) | Remote wireless monitoring device for oil well | |
| CN208765889U (en) | A kind of outdoor fire hydrant hydraulic pressure real-time monitoring device | |
| CN207318469U (en) | A kind of methane detection warning device based on NB-IoT technologies | |
| CN205907722U (en) | Automatic monitoring device is opened to city utility tunnel well lid | |
| CN205850061U (en) | A kind of intelligent fire bolt by wechat client real-time informing | |
| CN207319412U (en) | Sensing linkage intelligent gas leakage protective system | |
| CN206370140U (en) | A kind of engineering power equipment burglar alarm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |