CN202362662U - Remote intelligent monitoring system of fire hydrant - Google Patents
Remote intelligent monitoring system of fire hydrant Download PDFInfo
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- CN202362662U CN202362662U CN2011205050808U CN201120505080U CN202362662U CN 202362662 U CN202362662 U CN 202362662U CN 2011205050808 U CN2011205050808 U CN 2011205050808U CN 201120505080 U CN201120505080 U CN 201120505080U CN 202362662 U CN202362662 U CN 202362662U
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Abstract
The utility model relates to a fire hydrant, in particular to a remote intelligent monitoring system of a fire hydrant. A controller bracket is arranged inside a top end cover of the fire hydrant; a rotating shaft of the fire hydrant is arranged in the center of the controller bracket; the rotating shaft of the fire hydrant is provided with a valve position sensor coordinately; one side of the rotating shaft of the fire hydrant is provided with a PCB (Printed Circuit Board); the PCB is provided with a vibration sensor and a knockdown sensor; one side of the PCB is also provided with an MCU (Microprogrammed Control Unit) controller and a transmitting antenna; the vibration sensor, the knockdown sensor and the valve position sensor are respectively connected with the MCU controller via a low-pass filter circuit; each sensor respectively detects the information of the fire hydrant and transmits the information to the MCU controller; and the MCU controller transmits the obtained information to a remote communication server via a GPRS (General Packet Radio Service);communication module. According to the remote intelligent monitoring system of the fire hydrant, provided by the utility model, an intelligent control module and relevant sensors are additionally arranged on the basis of the traditional fire hydrant, so as to realize unified monitoring, management and deployment in a certain area and improve the normal utilization rate of fire fighting facilities.
Description
Technical field
The utility model relates to a kind of hydrant, is specially a kind of hydrant long-distance intelligent monitoring system.
Background technology
Hydrant plays key effect as the infrastructure of urban fire control in fire extinguishing.China's hydrant mainly comprises following three types: town road is joined and is built hydrant; Unit joins and builds hydrant; Residential building is joined and is built hydrant.
Because the administrative situation of hydrant is complicated, exists following serious problems: the municipal hydrant degree that goes to pot is big, and municipal hydrant daily servicing and maintenance are implemented not in place, and the interim service routine of hydrant is lack of standardization.
Because the installation of hydrant disperses very much, want to grasp in real time a kind of brand-new mode of duty needs of hydrant.Along with the development of computer networking technology, a kind of foundation technology of Internet of things on the internet through various wired and wireless network and internet converged, passes the information real-time of object exactly.Sensor timing acquiring relevant information on Internet of Things just can realize the real-time and effective management of hydrant state through wireless network and internet converged.
The utility model content
To the problem that exists in the prior art, the purpose of the utility model is to provide a kind of technical scheme of hydrant long-distance intelligent monitoring system.
Described hydrant long-distance intelligent monitoring system is characterized in that: in the hydrant top end cover, be provided with the controller support, the controller carriage center is the hydrant rotating shaft, in the hydrant rotating shaft, is equipped with valve position sensor; Hydrant rotating shaft one side is provided with pcb board, vibration transducer is set on the pcb board and knocks sensor down, also is provided with MCU controller and emitting antenna in pcb board one side; Described vibration transducer, knock sensor, valve position sensor down and link to each other with the MCU controller through low-pass filter circuit respectively; Vibration transducer, knock sensor, valve position sensor down and detect each information of hydrant respectively and deliver to the MCU controller; The detection information that the MCU controller will obtain is sent to the telecommunication server through the GPRS communication module, and sends alerting signal by hummer.
Described hydrant long-distance intelligent monitoring system; It is characterized in that also comprising temperature detecting module and top cover anti-open device; Temperature detecting module is made up of temperature sensor; The top cover anti-open device is made up of photoresistance and peripheral circuit thereof, and temperature detecting module links to each other with the MCU controller respectively with the top cover anti-open device.
Described hydrant long-distance intelligent monitoring system; It is characterized in that described vibration transducer is arranged on the pcb board in the hydrant top end cover; Pcb board and ground are 90 degree, and vibration transducer and ground also are 90 degree, and vibration transducer adopts spring vibration switch SW-18015P.
Described hydrant long-distance intelligent monitoring system; It is characterized in that the described sensor that knocks down is arranged on the pcb board in the hydrant top end cover; Knocking sensor down is processed by mercury cut-off; Mercury cut-off and pcb board are 45 degree angles, and a mercury cut-off is all installed in the pcb board both sides, and mercury cut-off is made up of the glass shell that is equipped with, electrode, lead-in wire and mercury.
Described hydrant long-distance intelligent monitoring system; It is characterized in that described valve position sensor is set to three; Constitute by the tongue tube sensor; Three magnet that constitute the tongue tube sensor vertically are arranged in the hydrant rotating shaft from top to bottom uniformly, and three corresponding tongue tubes are equipped with in the hydrant rotating shaft outside and are on the dry reed-pipe bracket of 120 degree setting from top to bottom.
Described hydrant long-distance intelligent monitoring system is characterized in that the PIC16F1938 chip that described MCU controller adopts Microchip Technology to produce, configuration 16K flash memory program storage, 256 byte data E
2PROM, 1K internal memory SRAM.
Described hydrant long-distance intelligent monitoring system is characterized in that the GPRS chip that described GPRS communication module adopts is the EM310 of Huawei.
Described hydrant long-distance intelligent monitoring system is characterized in that this monitoring system adopts the inferior powered battery of capacity type lithium, and supply voltage is 3.6 volts, and 1 joint capacity is 19000mAH, and single-unit size 26mm * 65mm adopts two joints, altogether 38AH.
The utility model is set up intelligent control module and related sensor on traditional hydrant basis; Real time remote detected in 24 hours; And be implemented in unified monitoring, management, allotment in a certain zone; Improved the normal function rate of fire fighting device, established good facility guarantee basis, fire department, water undertaking and social safety have all been had great realistic meaning for favourable development of rescue work of extinguishing fire.
Whether the utility model is removed the task of daily on-site hydrant supervision and management from, only need according to system suggestion make regular check on hydrant valve and can normally open; The utility model can find and definite available hydrant according to the GIS map when fire takes place apace;, the condition of a fire can locate hydrant fast when taking place; In order to avoid affect fire fighting adversely, improve the success ratio of fire brigade's fire fighting, the rationality of aid decision making city hydrant layout; In time fast hydrant is safeguarded, reduced and steal the water phenomenon; Avoided damaging the loss of the people's lives and properties that cause, improved the effective way of public fire protection service level and socialization level, reduced hydrant management, maintenance cost greatly because of hydrant.
Description of drawings
Fig. 1 is the mounting structure synoptic diagram of the utility model;
Fig. 2 is the signal processing flow figure of the utility model;
Fig. 3 is the valve position sensor plan structure synoptic diagram of the utility model;
Fig. 4 is the valve position sensor master TV structure synoptic diagram of the utility model;
Fig. 5 is the electrical block diagram of the utility model;
Fig. 6 is the testing process figure of the utility model vibration transducer;
Fig. 7 knocks the testing process figure of sensor down for the utility model;
Fig. 8 interrupts initialized process flow diagram for the utility model valve position sensor;
Fig. 9 is the testing process figure of the utility model valve position sensor;
Among the figure: 1-hydrant top end cover, the 2-PCB plate, the 3-MCU controller, the 4-emitting antenna, 5-knocks sensor down; The 6-vibration transducer, 7-controller support, 8-tongue tube, 9-magnet, 10-dry reed-pipe bracket; The 11-temperature detecting module, 12-hummer, 13-valve position sensor, 14-battery, 15-top cover anti-open device; The rotating shaft of 16-hydrant, the 17-GPRS communication module, 18-knocks sensor assembly down, 19-valve position sensor module, 20-vibration transducer module.
Embodiment
Below in conjunction with Figure of description the utility model is further specified:
Hydrant long-distance intelligent monitoring system; Involving vibrations sensor assembly 20, knock sensor assembly 18, valve position sensor module 19, temperature detecting module 11, top cover anti-open device 15, hummer 12 and battery 14 down, be provided with corresponding sensor and peripheral circuit thereof in each module.Particularly, in hydrant top end cover 1, be provided with controller support 7, controller support 7 centers are hydrant rotating shaft 16, in hydrant rotating shaft 16, are equipped with valve position sensor 13; Hydrant rotating shaft 16 1 sides are provided with pcb board 2, vibration transducer 6 is set on the pcb board 2 and knocks sensor 5 down, also are provided with MCU controller 3 and emitting antenna 4 in pcb board 2 one sides; Described vibration transducer 6, knock sensor 5, valve position sensor 13 down and link to each other with MCU controller 3 through low-pass filter circuit respectively; Vibration transducer 6, knock each information that sensor 5, valve position sensor 13 detect hydrant respectively down; The detection information that MCU controller 3 will obtain is sent to the telecommunication server through GPRS communication module 17, and sends alerting signal by hummer 12.
The utility model also comprises temperature detecting module 11 and top cover anti-open device 15; Temperature detecting module 11 is made up of temperature sensor; Top cover anti-open device 15 is made up of photoresistance and peripheral circuit thereof, and temperature detecting module 11 links to each other with MCU controller 3 respectively with top cover anti-open device 15.
The monitoring flow process of this monitoring system is following: system's power-up initializing, wake up unusually or by turns, promptly inquire about the poll time whether to and whether have sensor states unusual; If not then continue to change over to dormancy, time is up if abnormal signal or poll are arranged, and GPRS can open in system; And reading the signal of each sensor, access network connects the telecommunication server simultaneously; Then each sets of signals bag, and send to the telecommunication server through GPRS and get on, receive packet on the telecommunication server after; Can be toward the Hui Bao of system, returning the bag content is the parameter of some settings, system unpacks the analysis data after receiving back bag; After extracting useful data, get into dormancy again, according to this circulation.
The principle of work of vibration transducer: when outer mechanical force conducts to vibration transducer through the hydrant housing; Masterpiece is used for power spring; When power spring is displaced to critical point, produce snap action, make the moving contact of power spring body and fixedly conductive connecting pin collision generation connection fast; After the acting force on the vibration transducer was removed, simultaneously power spring produced counteragent power, reach the action critical point of reed when the vibration transducer reverse stroke after, breaking off fast promptly appears in instantaneous completion counteragent.The contact spacing of vibroswitch is little, and actuating length is short, and it is little to press power; Break-make is rapid, and the responsiveness of its moving contact and vibration transducer responsiveness are irrelevant, after vibration signal produces; Sensor is through filtering circuit, high-frequency interferencing signal is shielded a part after, be connected to the external interrupt mouth of MCU controller; Avoid appearing at MCU and frequent false triggering phenomenon occurs, improve the reliability of single-chip microcomputer work because of interference.
During lower stress, vibration transducer is not shaken or small shake on having big external impacts or vertical impact, is can trigger pip; When receiving big external impacts or by the side when stressed, as pound, hit, sled etc., the particularly copper sleeve of hydrant receive the thief when beaing; Can produce strong vibration signal, pass to MCU, the timing that then can start MCU detects vibration signal number of times program; Whether in the time (as: giving tacit consent at present 30 seconds) that limits, reach the vibration number (as: giving tacit consent at present 80 times) that sets by detecting vibration signal; Can prevent that like this erroneous judgement that some non-artificial pilferages etc. cause is disconnected,, then produce vibration fault status signal sign if reached the number of times of setting at official hour; Set the fault steady state flag; Through steady state flag, write the current data formation, send data through GPRS to the telecommunication server then; If reach setting-up time, and do not reach vibration number, then the vibration number accumulator register is automatically clear 0, gets into sleep state then; For saving battery electric power consumption, the time can not trigger less than 5 minutes once more after setting the steady state flag position.After host computer receives vibration signal; The vibration real-time animation state that can on man-machine interface, show the reference numeral hydrant; And record historical data base and Mishap Database, and send the malfunction that note is informed managerial personnel's hydrant simultaneously, repairing is arranged in prompting as early as possible.
This knocks sensor 5 down and adopts the high-quality mercury cut-off of import to process, and compares with common vibroswitch, has many-sided advantage; For example, can comparatively use under the severe environmental conditions, the required external force of break-make is little; And volume is little, and is hermetically sealed, and work that can be permanently effective.Its principle of work is: the installation of mercury cut-off becomes 45 degree under the normal condition with ground; The pcb board pros and cons is respectively adorned a mercury cut-off; Can realize that 360 spend the comprehensive detection that knocks down, when hydrant was knocked down the angle that reaches more than 45 degree, mercury cut-off was in on-state.
Knock the principle of work of sensor down: knock the sensor generation down and knock signal down,, behind the filtering high-frequency signal, again signal is passed to the IO port of MCU through the RC low-pass filter circuit; MCU whenever can retouch row to the IO port at a distance from 1 second in real time, found to have to produce to knock trigger pip down, can get into the timing detection and knock signal down, in the cycle of agreement; If the signal that detects reaches continuously 4 times and be above all is to knock signal down, represent that then hydrant is knocked down, set and knock sign down; Setting simultaneously knocks steady state flag down and comes into force, if in the signal that detects, there is interference the centre; In the time rating that knocks down, do not reach 4 times, then return to original state, do not produce any action.Set when knocking steady state flag down and being 1 when detecting in the program; Then get into the whole states of current hydrant are write data queue, send data through GPRS to the telecommunication server then, after transmission finishes; Judge current data lines up whether data are arranged; Then do not get into the sleep power down mode, otherwise continue to send, finish until the data of current data formation are sent.If within 5 minutes, knock down once more, can not trigger for the second time.After host computer receives and knocks signal down; Can on man-machine interface, show the real-time animation state that the reference numeral hose saddle knocks down; And record historical data base and Mishap Database, and send the malfunction that note is informed managerial personnel's hose saddle simultaneously, repairing is arranged in prompting as early as possible.
The tongue tube sensor that this valve position sensor 13 adopts; Be a kind of special key of magnetosensitive, also claim dry-reed relay, usually by two or three reed contacts that magnetic material is made; Be encapsulated in and be filled with inert gas (like nitrogen; And leave certain interval or be in contact with one another helium etc.) or in the glass tube of vacuum, the leaf end of parallel encapsulation is overlapping in the glass tube, to constitute often opening or normally closed contact of switch.Be characterized in simpler than common mechanical construction of switch, volume is little, speed is high, long working life; And compare with electronic switch, it has characteristics such as anti-load shock ability is strong again, and functional reliability is very high.Its principle of work is: make the reed magnetization when permanent magnet perhaps has around the magnetic field that the coil electricity of tongue tube forms near tongue tube, the contact portions of reed just induces opposite polarity magnetic pole.There is a natural attraction between the sexes, and when attractive force during greater than the elastic force of reed, contact will adhesive; When magnetic force was reduced to a certain degree, contact was opened by the elastic force of reed.
It is 120 degree that three mutual angles of valve position sensor are overlooked, side view presents, in, evenly distribute down, be furnished with three pieces of magnet 9 on the intermediate rotary shaft; Corresponding on the height with tongue tube 8, when forwarding certain angle to, can trigger a signal; Standard-sized sheet is 5 circles altogether, and every circle triggers three signals, can produce 15 pulse triggering signals during standard-sized sheet; Controller is counted the aperture that writes down hydrant; In addition, can judge that through the sequencing of identification triggering sensor valve is to change counterclockwise or change clockwise, promptly opens or closes.When valve position had action, valve position sensor produced pulse signal, the RC filtering circuit that ventilating controller I/O mouth place connects, and the filtering high-frequency signal is connected to the external interrupt I/O mouth of MCU.
During new the installation, for confirming to be in the complete shut-down position, the MCU controller occurs when detecting the complete shut-down state, and promptly the switch counting becomes at 0 o'clock by 1, and buzzer call informs that the installation personnel valve has been in the complete shut-down state for five times.When the intermediate rotary shaft rotation is spent above 120, can trigger a valve position sensor, after the response of MCU controller, the state when judging whether with original the triggering is identical, if identical, does not then handle; If different, then leave in the up-to-date data queue of valve position; Whether simultaneously every have new data adding in the data queue of judging valve position in 1 second, as do not have, and then withdraws from, if having; Judge that then valve position is that inverse clock changes, then increase progressively (opening), otherwise successively decrease (closing), judge simultaneously in valve position 5 seconds after action is arranged; Whether there is new valve state to change,, then continues to wait for if having; If no, then get into stable state, set the stable sign of valve position.When detecting in the program when setting the valve position steady state flag and being 1; Then get into the whole states of current hydrant are write data queue, send data through GPRS to the telecommunication server immediately then, after transmission finishes; Judge current data lines up whether data are arranged; Then do not get into the sleep power down mode, otherwise continue to send, finish until the data of current data formation are sent.
The MCU controller of the utility model is accomplished functions such as data acquisition to the hydrant node, control, communication.The high-performance RISC CPU PIC16F1938 that MCU adopts Microchip Technology to produce, configuration 16K flash memory program storage, 256 byte data EEPROM, 1K internal memory SRAM.Have following technical advantage: anti-interference by force, configure dedicated low-power consumption 32K enhancement mode Timer1 oscillator is realized low-power consumption, adopts the high precision internal oscillator, and frequency of operation is 10 MHz～20MHz; Wide voltage power supply scope (1.8-5.5V), standby voltage typical electrical flow valuve when 2.0V is 100nA, and the exemplary operation current value is 50 μ A when 1MHz, 2.0V; The A/D converter that has 8 bit resolutions and 14 paths; Can under energy-conservation park mode, carry out sampling work; Technical grade is fit to exposure in sunshine work down with expansion level temperature range; Carry out online serial programming through two pins; Selectable 1.024/2.048/4.096V reference voltage.
Native system realize hydrant water supply pressure, valve open (passs) state, valve opening size, comprehensive when knocking detection, pilferage copper sleeve down vibration detection, drive valve and steal functions such as the state-detection of water, cell voltage and operating ambient temperature sampling.The MCU controller sends a signal to the telecommunication server through serial ports control GPRS communication module.
The signal that the sensor of native system hardware circuit produces owing to itself characteristic, can produce the oscillator signal of high frequency, after RC filtering, signal is passed to middle fracture or the common I/O mouth of MCU again; The man-machine interaction part, is driven hummer through amplifying circuit by the common I/O mouth of MCU, embedded 232 serial ports of GPRS communication module, and it is mutual that MCU can realize intersecting communication through serial port.
Structure for the hydrant that cooperates the utility model; Hydrant structure to original is improved, and originally the hydrant height overall is 1208mm, is external thread below the sleeve design; Be connected with original hydrant body; Be designed to internal thread above and be connected with original top cover, countershaft improves, rising 15cm.
Because the installation of hydrant disperses very much, exist circumstance complication, landform abominable, be exposed to the sun for a long time again in the urban district or open-air, very strict to the requirement of controller.Guarantee the operate as normal of controller, hydrant controller architecture degree of protection is pressed the IP67 design, when waterlogging appears in the city, can avoid the damage of controller like this, enables permanently effective work.
Because of installation site decision hydrant is difficult to adopt ac-powered, must adopt powered battery, and the hydrant enormous amount; If do not adopt the super low-power consumption energy-saving design; Cause the battery life cycle of use to shorten greatly, can produce huge replacing battery, top cover dismounting, traffic and labour cost, so just consider to adopt powered battery during product design; Disposable normal use, the life-span reaches 5 years.
The energy-saving design of native system during to the hardware super low-power consumption of the type selecting of battery and performance, circuit, work requires very strict.Through a series of optimal design, various low power consumption control below system realizes:
During the system operate as normal; Running current is 3mA, as unusual (as knock down, vibration and aperture) occur and need the extra current value, after GPRS work; The electric current of 250mA need be provided, and whole working time basic controlling (contains start, communication link, transmission, entering dormancy) in 35S.After the information transmission finishes, get into dormancy, controller promptly gets into dormant state, and (perhaps abnormal conditions triggering) just wakes up until the time that reaches the information of sending next time, and after the dormancy, the static current of lcd of entire circuit plate is controlled in 90 microamperes.
Consider that volume and factors of limit life adopt the inferior battery of capacity lithium, supply voltage is 3.6 volts, and 1 joint capacity is 19000mAH, and single-unit size 26mm * 65mm adopts two joints, altogether 38AH.The controller battery used design by 5 years, adopted the inferior battery of the unmoon of Wuhan Voltec Engrgy Sources Co., Ltd. life board capacity type lithium, and model is D/ER34615; Battery design serviceable life is 10 years, and open-circuit voltage is the 3.66-3.69 volt, and single-unit is 19000mAH; Maximum continuous discharge current: 200mA; Working temperature :-55 to 85 degrees centigrade, single-unit size (D x H): 34.0 x 61.5mm, weight: 108g.
Through selecting the low-power consumption main control chip, type selecting considers that function satisfies under the prerequisite of using, and number of pin is the least possible, flash and ram needn't be excessive.The controller electricity-saving function is realized: adopt PIC16F series with nanowatt technology for energy-conservation remarkable advantages to be arranged.The nanowatt technology is that the overall power under park mode is in the scope of nanowatt level, and available software is selected Hardware configuration, allows to be applied in run duration and changes its power consumption on demand.Mode of operation: according to application demand, normal condition following every day of active upload is once being launched before coming into force once in a week, and sends information to Surveillance center; Under special circumstances, change, have vibration signal constantly, through external interrupt MCU is waken up and change normal process over to if any water meter pulse switch amount, hose valve door opening and closing state.When being in dormancy at ordinary times, chip power-consumption is controlled at below the 100nA.The controller overall power is in 90 uA.
GPRS adopts the EM310 of Huawei, power consumption analysis: shutdown, 40uA; Standby, 4mA; Voice, 240mA; The quiescent current control that controller is in when enlivening stopped status is single-chip microcomputer 10uA, GPRS 40uA.The quiescent current that controller is in when enlivening stopped status consists of the following components: single-chip microcomputer 10uA, and GPRS 40uA, consideration is peripheral uses the signal electric weight to be 50uA, altogether 100uA.Electric current was 200mA when signal sent, and time span is 60 seconds (containing start, communication link, transmission, dormancy).
Claims (8)
1. hydrant long-distance intelligent monitoring system, it is characterized in that: in the hydrant top end cover, be provided with the controller support, the controller carriage center is the hydrant rotating shaft, in the hydrant rotating shaft, is equipped with valve position sensor; Hydrant rotating shaft one side is provided with pcb board, vibration transducer is set on the pcb board and knocks sensor down, also is provided with MCU controller and emitting antenna in pcb board one side; Described vibration transducer, knock sensor, valve position sensor down and link to each other with the MCU controller through low-pass filter circuit respectively; Vibration transducer, knock sensor, valve position sensor down and detect each information of hydrant respectively and deliver to the MCU controller; The detection information that the MCU controller will obtain is sent to the telecommunication server through the GPRS communication module, and sends alerting signal by hummer.
2. hydrant long-distance intelligent monitoring system according to claim 1; It is characterized in that also comprising temperature detecting module and top cover anti-open device; Temperature detecting module is made up of temperature sensor; The top cover anti-open device is made up of photoresistance and peripheral circuit thereof, and temperature detecting module links to each other with the MCU controller respectively with the top cover anti-open device.
3. hydrant long-distance intelligent monitoring system according to claim 1; It is characterized in that described vibration transducer is arranged on the pcb board in the hydrant top end cover; Pcb board and ground are 90 degree; Vibration transducer and ground also are 90 degree, and vibration transducer adopts spring vibration switch SW-18015P.
4. hydrant long-distance intelligent monitoring system according to claim 1; It is characterized in that the described sensor that knocks down is arranged on the pcb board in the hydrant top end cover; Knocking sensor down is processed by mercury cut-off; Mercury cut-off and pcb board are 45 degree angles, and a mercury cut-off is all installed in the pcb board both sides, and mercury cut-off is made up of the glass shell that is equipped with, electrode, lead-in wire and mercury.
5. hydrant long-distance intelligent monitoring system according to claim 1; It is characterized in that described valve position sensor is set to three; Constitute by the tongue tube sensor; Three magnet that constitute the tongue tube sensor vertically are arranged in the hydrant rotating shaft from top to bottom uniformly, and three corresponding tongue tubes are equipped with in the hydrant rotating shaft outside and are on the dry reed-pipe bracket of 120 degree setting from top to bottom.
6. hydrant long-distance intelligent monitoring system according to claim 1 is characterized in that the PIC16F1938 chip that described MCU controller adopts Microchip Technology to produce, configuration 16K flash memory program storage, 256 byte data E
2PROM, 1K internal memory SRAM.
7. hydrant long-distance intelligent monitoring system according to claim 1 is characterized in that the GPRS chip that described GPRS communication module adopts is the EM310 of Huawei.
8. hydrant long-distance intelligent monitoring system according to claim 1 is characterized in that this monitoring system adopts the inferior powered battery of capacity type lithium, and supply voltage is 3.6 volts, and 1 joint capacity is 19000mAH, and single-unit size 26mm * 65mm adopts two joints, altogether 38AH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205050808U CN202362662U (en) | 2011-12-07 | 2011-12-07 | Remote intelligent monitoring system of fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205050808U CN202362662U (en) | 2011-12-07 | 2011-12-07 | Remote intelligent monitoring system of fire hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362662U true CN202362662U (en) | 2012-08-01 |
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ID=46573834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205050808U Withdrawn - After Issue CN202362662U (en) | 2011-12-07 | 2011-12-07 | Remote intelligent monitoring system of fire hydrant |
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| Country | Link |
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| CN (1) | CN202362662U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426448A (en) * | 2011-12-07 | 2012-04-25 | 浙江科龙消防智能开发有限公司 | Remote intelligent monitoring system of fire hydrant |
| CN109200518A (en) * | 2018-10-18 | 2019-01-15 | 中旭昊智能科技发展股份有限公司 | Fire hydrant intelligent online monitoring device |
| CN110057459A (en) * | 2019-05-05 | 2019-07-26 | 劭行（苏州）智能科技有限公司 | The temperature detection structure of temperature wireless passive sensor and ring network cabinet |
-
2011
- 2011-12-07 CN CN2011205050808U patent/CN202362662U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426448A (en) * | 2011-12-07 | 2012-04-25 | 浙江科龙消防智能开发有限公司 | Remote intelligent monitoring system of fire hydrant |
| CN102426448B (en) * | 2011-12-07 | 2013-04-10 | 浙江科龙消防智能开发有限公司 | Remote intelligent monitoring system of fire hydrant |
| CN109200518A (en) * | 2018-10-18 | 2019-01-15 | 中旭昊智能科技发展股份有限公司 | Fire hydrant intelligent online monitoring device |
| CN110057459A (en) * | 2019-05-05 | 2019-07-26 | 劭行（苏州）智能科技有限公司 | The temperature detection structure of temperature wireless passive sensor and ring network cabinet |
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Granted publication date: 20120801 Effective date of abandoning: 20130410 |
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