CN100492430C - Intelligent hydrogen leakage detecting system based on wireless sensing network - Google Patents
Intelligent hydrogen leakage detecting system based on wireless sensing network Download PDFInfo
- Publication number
- CN100492430C CN100492430C CNB2007100360952A CN200710036095A CN100492430C CN 100492430 C CN100492430 C CN 100492430C CN B2007100360952 A CNB2007100360952 A CN B2007100360952A CN 200710036095 A CN200710036095 A CN 200710036095A CN 100492430 C CN100492430 C CN 100492430C
- Authority
- CN
- China
- Prior art keywords
- module
- hydrogen
- signal
- circuit unit
- network
- 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.)
- Expired - Fee Related
Links
- 0 O*1=CCCC1 Chemical compound O*1=CCCC1 0.000 description 1
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a hydrogen leakage intelligent detection system based on a wireless sensing network, which comprises a hydrogen sensitive probe module, a wireless communication network module and a signal analysis processing module. The hydrogen sensitive probe module is connected with the signal analysis processing module through the wireless communication network module, after completing calibration, the hydrogen sensitive probe module makes filtering and modulation to a data signal, the wireless communication network module acquires and converses the analog data signal, makes processing according to the calibration result, makes judgment according to the processing result, transmits the processing result to a concourse center in a wireless way, and then transmits to a information analysis processing module. The hydrogen leakage intelligent detection system based on a wireless sensing network has the advantages of small size, low cost, convenient installation, strong anti-interference capability, quick response speed, and high safety.
Description
Technical field
The present invention is mainly concerned with hydrogen energy source Leak Detection field, refers in particular to a kind of intelligent hydrogen leakage detecting system based on radio sensing network.
Background technology
At the many decades in future, hydrogen will be played an important role at world's energy field as emerging energy carrier, be widely used in fields such as Aero-Space power, communications and transportation, Chemical Manufacture.Yet hydrogen is the extremely strong gas of penetrability, leaks especially easily.Scientist estimates, will reach 10～20% of hydrogen total amount in the leakage of producing, store, transporting and distributing hydrogen in the overall process.Because hydrogen/air mixture burns volume ratio scope is big, catching fire can be low, easily blast, so, along with exploitation of hydrogen project and hydrogen expanding economy, concern, urgent need that hydrogen Leak Detection problem will inevitably be subjected to more and more widely are safe and reliable, low, the easy-to-install hydrogen leak detection of wiring cost means.
Present stage, the mode based on bus transfer is all used in domestic signal transmission in the quick detection of hydrogen, though this mode has the information reliability advantage of higher, but because the environmental field of general hydrogen storage and transmission is all bigger and easy leak is more, this has caused difficulty just for wired communication mode in wiring, and based on wired mode big difficulty is arranged on system extension, in a lot of occasions or even impossible.
Summary of the invention
The problem to be solved in the present invention just is: the technical matters at prior art exists the invention provides the intelligent hydrogen leakage detecting system based on radio sensing network that a kind of volume is little, with low cost, easy for installation, antijamming capability is strong, response speed is fast, safe.
For solving the problems of the technologies described above, the solution that the present invention proposes is: a kind of intelligent hydrogen leakage detecting system based on radio sensing network, it is characterized in that: it comprises the hydrogen quick probe module, cordless communication network module and signal analysis and processing module, the hydrogen quick probe module, link to each other with the signal analysis and processing module by the cordless communication network module, the hydrogen quick probe module is carried out filtering and conditioning to data-signal after finishing demarcation, by the cordless communication network module analog data signal is gathered and changed, and handle according to calibration result, make judgement according to result, and result is transferred to the signal analysis and processing module by wireless mode.
Described hydrogen quick probe module comprises hydrogen-sensitive element, heater circuit unit, modulate circuit unit, power supply conditioning module and electric connector, be used for the heater circuit unit of hydrogen-sensitive element heating is linked to each other with the modulate circuit unit, the power supply that inserts by electric connector is each parts power supply after the power supply conditioning module.
Described modulate circuit unit comprises exciting circuit unit, anti-aliasing filter unit and impedance inverter circuit, and three parts are connected in series in proper order according to front and back.The exciting circuit unit excites the chemical signal of hydrogen-sensitive element, and the chemical signal of hydrogen-sensitive element is changed into electric signal, and the anti-aliasing filter unit carries out filtering to the electric signal of exciting circuit unit output, weakens high-frequency signal.Impedance inverter circuit and anti-aliasing filter units in series improve the carrying load ability of system by the output impedance that improves the anti-aliasing filter unit.
Described cordless communication network module adopts the CC2430 wireless sensor network node, the CC2430 wireless sensor network node comprises the AD modular converter, processor module, radio-frequency communication module, memory module, power module and interface module, the interface module that is used for linking to each other with the hydrogen quick probe module is passed through the AD modular converter or is directly linked to each other with the input end of processor module, processor module is used for finishing the system group network agreement and data-signal is handled, data after the output terminal of this processor module will be handled by radio-frequency communication module export the center of converging to wireless mode, transfer to the signal analysis and processing module then.Being used for the memory module of stored programme and related data links to each other with processor module, and power module is above-mentioned each parts power supply.
Described hydrogen quick probe module is installed in the shell, this shell comprises housing, tightening conveyor screw and adapter, adapter links to each other with an end of housing, the tightening conveyor screw be sheathed in the other end of housing and and housing between form the shaft shoulder, the circuit board of hydrogen quick probe module is fixed on the shaft shoulder.
Compared with prior art, advantage of the present invention just is:
1, the present invention is based on the intelligent hydrogen leakage detecting system of radio sensing network, one by having designed complete hydrogen Leak Detection probe, and sensing range is wide, and antijamming capability is strong, is difficult for poisoning, and release time is short, and response speed is fast; Two have designed a kind of general wireless sensor network node, and cost is low, and volume is little, and function is strong, and is easy for installation; Three have realized the combination of hydrogen Leak Detection probe with wireless sensor network, possess the ability of distributed treatment and Centralized Monitoring.This pick-up unit can be applied to each link of hydrogen production, transportation, storage and use.Before disaster takes place, can carry out timely early warning to leakage, when taking place, disaster can in time position accident point, shortened servicing time, reduced maintenance cost, improve security performance, the loss of reduction accident.
2, the present invention is based on the intelligent hydrogen leakage detecting system of radio sensing network, wireless sensor network is applied to hydrogen storage and transmission environment, the problems such as difficult wiring of having avoided wire transmission to run into, and the minimizing of charging space can reduce security risk, reduces the probability that electric spark causes catastrophic effect.
3, the present invention is based on the intelligent hydrogen leakage detecting system of radio sensing network, to higher temperature, therefore, sonde response speed is fast with the constant DC voltage heating sensor.Use the reference voltage chip to power, isolated the influence of external power source and heater circuit noise, the output signal-to-noise ratio height the quick signal of hydrogen to signal circuit.Output area is 0-3.3V, is convenient to the acquisition process of portable energy-saving equipment.Select the crucial original paper parameter of appropriate modulate circuit, the sensitivity that has improved probe.Circuit uses sticking-element and printed circuit board (PCB), is convenient to large-scale production.Use the shaft shoulder to install and fix circuit board, use between metal parts to be threaded, make electric connector with the air standard part between detection probe and external power source, both improved the security and the anti-vibration ability of probe, be convenient to again pop one's head in no instrument assembling and module are changed.
4, the present invention is based on the intelligent hydrogen leakage detecting system of radio sensing network, the processor of node has data is carried out pretreated ability, makes whole network form a distributed processing system(DPS), has strengthened the calculation process ability of system.
5, the present invention is based on the intelligent hydrogen leakage detecting system of radio sensing network, reusable charging power-supply unit can make the life-span of system prolong significantly, meets sustainable development and requirements of green environmental protection.
6, the present invention is based on the intelligent hydrogen leakage detecting system of radio sensing network, network coordination person, router are identical with the end equipment hardware setting, and unitarity is strong, are convenient to replace and development and maintenance.
7, the present invention is based on the intelligent hydrogen leakage detecting system of radio sensing network, the sensor network cost is low, the principle of design of highly redundant provides stronger fault-tolerant ability for total system, the influence of neighbourhood noise to system performance eliminated in the close contact of the sensor node and the detection of a target greatly, self-organizing network, can improve the reliability that measurement and information are obtained, the dynamic reconfigurable network reduces maintenance cost and manual intervention.
Description of drawings
Fig. 1 is a framed structure synoptic diagram of the present invention;
Fig. 2 is a workflow synoptic diagram of the present invention;
Fig. 3 is the circuit theory synoptic diagram of heater circuit unit among the present invention;
Fig. 4 is the circuit theory synoptic diagram of exciting circuit unit among the present invention;
Fig. 5 is the calibration curve synoptic diagram of probe output/input among the present invention;
Fig. 6 is the curve synoptic diagram of probe actual measurement 100ppm hydrogen among the present invention;
Fig. 7 is the circuit theory synoptic diagram of anti-aliasing filter unit and impedance inverter circuit among the present invention;
Fig. 8 is the circuit theory synoptic diagram of signal condition ring current module among the present invention;
Fig. 9 is the structural representation of electric connector among the present invention;
Figure 10 is the structural representation of shell among the present invention;
Figure 11 is the framed structure synoptic diagram of cordless communication network module node among the present invention;
Figure 12 is the circuit theory synoptic diagram of node interface module in the cordless communication network module node;
Figure 13 is the circuit theory synoptic diagram of antenna and impedance matching circuit in the cordless communication network module node;
Figure 14 is reusable charging feed circuit synoptic diagram;
Figure 15 is the circuit theory synoptic diagram of CC2430 and peripheral circuit thereof;
Figure 16 is the topological structure synoptic diagram of network support in the cordless communication network of the present invention;
Figure 17 is a wireless communication network node self-organizing network schematic flow sheet among the present invention.
Marginal data
1, hydrogen quick probe module 11, hydrogen-sensitive element
12, heater circuit unit 13, modulate circuit unit
14, power supply conditioning module 15, electric connector
131, exciting circuit unit 132, anti-aliasing filter unit
133, impedance inverter circuit 2, cordless communication network module
21, CC2430 chip 211, AD modular converter
212, processor module 213, radio-frequency communication module
214, memory module 22, interface module
23, power module 24, antenna matching module
25, converge center 3, signal analysis and processing module
4, shell 41, housing
42, tightening conveyor screw 43, adapter
44, the shaft shoulder
Embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
As depicted in figs. 1 and 2, the present invention is based on the intelligent hydrogen leakage detecting system of radio sensing network, it comprises hydrogen quick probe module 1, cordless communication network module 2 and signal analysis and processing module 3, hydrogen quick probe module 1, link to each other with signal analysis and processing module 3 by cordless communication network module 2, hydrogen quick probe module 1 is carried out filtering and conditioning to data-signal after finishing demarcation, gather and change by 2 pairs of analog data signals of cordless communication network module, and handle according to calibration result, make judgement according to result, and result transferred to the center of converging 25 by wireless mode, transfer to signal analysis and processing module 3 then.Signal analysis and processing module 3 will converge the processing of classifying of data that center 25 transmits, so that the state of all nodes in netting is carried out real-time monitoring and analysis; In addition, this signal analysis and processing module 3 also provides a personal-machine interface, can as required control command be returned the node of giving in the network by the center of converging 25.
In the present embodiment, hydrogen quick probe module 1 comprises hydrogen-sensitive element 11, heater circuit unit 12, modulate circuit unit 13, power supply conditioning module 14 and electric connector 15, be used for the heater circuit unit 12 of hydrogen-sensitive element 11 heating is linked to each other with modulate circuit unit 13, the power supply that inserts by electric connector 15 is each parts power supply after power supply conditioning module 14.For shortening the reaction time, reduce system cost, in the present embodiment, hydrogen-sensitive element 11 adopts the TGS series hydrogen sensor of FIGARO company, and the sensing range of this sensor is 100-5000ppm, is difficult for poisoning favorable repeatability.Referring to shown in Figure 3, the heating circuit of modulate circuit unit 13 directly uses external power source, does the requirement of both having satisfied the sensor heating power like this, is convenient to the type of heating of wireless sensor network node from external control hydrogen Leak Detection probe simultaneously.In the present embodiment, exciting circuit unit 131, anti-aliasing filter unit 132 and 133 3 parts of impedance inverter circuit are according to being connected in series in proper order according to front and back.
As shown in Figure 4, the sensor sensing element is connected with the dividing potential drop mode with pull-up resistor RL in the exciting circuit unit 131, and output with the pass of input is:
Fig. 5 has described the calibration curve of probe output/input.The sensitivity of sensor is:
A is the positive constant relevant with sensor with α in the formula, V
REFThe output voltage of expression voltage chip, R
LThe expression divider resistance, c represents gas concentration to be measured.According to the actual conditions of formula (2) and resistance product, select R
LResistance be 1K Ω, make the sensitivity maximization of probe.
Fig. 6 is the curve of probe actual measurement 100ppm hydrogen, and from figure as can be seen, the output pace of change is 20mV/s.
As shown in Figure 7, be anti-aliasing filter unit 132 in the present embodiment and impedance inverter circuit 133, in view of measured signal low frequency variations generally speaking, consider energy-conservation needs, the wireless sensor network node frequency acquisition is set in below the 100Hz, in order to prevent frequency alias and to eliminate the high-frequency percussion noise, in modulate circuit, designed frequency overlapped-resistable filter.Simultaneously, for improving the output performance of sensing probe, insert the one-level follower circuit with reducing output impedance.Impedance inverter circuit has reduced the load effect of node AD modular converter to circuit, thereby more flexibility is provided for the type selecting of AD modular converter.
As shown in Figure 8, in the present embodiment, power supply conditioning module 14 comprises two parts, (1) signal condition ring current module, the signal condition loop uses the integrated voltage stabilizing chip REF196 of ADI company as power supply, and this power supply chip output maximum absolute error is 2mV only.The 1# of chip, 5# pin are for keeping pin, and the user does not need to connect.The 2# pin is a power input, and the 3# pin is a chip operation State Control terminal, when inserting high level, and the chip operate as normal, when inserting low level, chip enters park mode.The 4# pin is a ground wire terminal.The 6# pin is a reference voltage output terminal.Meet C2, C3, C4, C6 are filter capacitor.(2) heating power supply module, the standard for manual sampling power module is input as 170～264VAC, is output as 5V, relative error ± 2%.
As shown in Figure 9, in the present embodiment, being connected and using 4 core air standard electric connectors 15 between power supply and the probe is defined as power supply, ground wire, dormancy and signal respectively.Reduced the electromagnetic interference (EMI) of coupled outside, reduced the electromagnetic interference (EMI) of hydrogen leak detection system simultaneously the hydrogen site of deployment.
As shown in figure 10, hydrogen quick probe module 1 is installed in the shell 4, this shell 4 comprises housing 41, tightening conveyor screw 42 and adapter 43, adapter 43 links to each other with an end of housing 41, tightening conveyor screw 42 be sheathed in the other end of housing 41 and and housing 41 between form the shaft shoulder 44, the circuit board of hydrogen quick probe module 1 is fixed on the shaft shoulder 44.Therefore, just can fixing circuit board without any need for instrument.The shaft shoulder 44 places are provided with rubber ring, have not only isolated the influence of metal shell to circuit, and have cushioned the influence that circuit board is given in shell 4 vibrations.For improving the security and the Electro Magnetic Compatibility of probe, the shell 4 of probe has used stainless steel material, and probing shell 4 is cylindric, has reduced the volume of probe.All with being threaded, promptly can assemble without any need for instrument between three parts, wherein adapter uses at timing signal.
As shown in figure 11, in the present embodiment, the wireless sensor network node that cordless communication network module 2 adopts based on the CC2430 chip, the CC2430 wireless sensor network node comprises AD modular converter 211, processor module 212, radio-frequency communication module 213, memory module 214, power module 23 and interface module 22, AD modular converter 211 is mainly used to finish the conversion that the hydrogen quick probe simulating signal outputs to digital signal, the interface module 22 that is used for linking to each other with hydrogen quick probe module 1 is passed through AD modular converter 211 or is directly linked to each other with the input end of processor module 212, processor module 212 is used for finishing the system group network agreement and data-signal is handled, data output after the output terminal of this processor module 212 will be handled by radio-frequency communication module 213, being used for the memory module 214 of stored programme and related data links to each other with processor module 212, and power module 23 is above-mentioned each parts power supply.Wherein, interface module 22 realizes the communication interface of node miscellaneous equipment.Wherein AD modular converter 211, processor module 212, radio-frequency communication module 213, memory module 214 several sections all have been integrated in CC2430 chip 21 inside, selected necessary filtering according to environmental demand, antenna matching 24 circuit such as grade use the 2.4GHz special-purpose omnidirectional antenna of communicating by letter.CC2430 chip 21 be TI (chipcon) company produce first meet the 2.4GHz radio system single-chip of ZigBee technology.Be applicable to various radio sensing network nodes, comprise tuner, router and terminal device.It has RF receiver and the RAM of the 8051MCU that strengthens the property, 8kB and the Flash of as many as 128kB etc. of CC2420, also possess direct memory addressing (DMA) function, programmable watchdog timer, AES-128 security coprocessor in addition and reach 8 8-14 position ADC, the USART that import, sleep pattern timing, electrification reset, senior under-voltage detection, 21 programmable I/O pins etc., two programmable USART are used for master/slave SPI or UART operation.Because integrated level is high, peripheral circuit is simple, and the node volume is little, is convenient to install and place.Mainly comprise the node interface part in the concrete hardware design, antenna and impedance matching part, charging power pack and CC2430 and peripheral circuit part thereof.
Provide interface as Figure 12 interface module, 8 tunnel simulating signal input can be provided at most hydrogen quick probe; The connection of the Digital I interface of processor can be used for the function expansion; Also provide simultaneously the connection of emulator, so that analysis operation change nodal operation and function.
Shown in Figure 13, antenna and impedance matching circuit part is made up of resistance and electric capacity and inductance, and accurate 50ohm impedance matching is provided, and satisfies the requirement of the radio communication of CC2430 under the 2.4GHz frequency.
As shown in figure 14, this circuit provides energy for whole node, simultaneously, considers principle recyclable, sustainable use, has designed the charging system that re-uses, and when charging and power supply system is effectively isolated, and reduces the influence that environment is caused to greatest extent.
As shown in figure 15,19 pin and 21 pin by CC2430 provide the high frequency crystal oscillator of 32MHz for it, the low frequency association oscillator of 32.768K is provided by 44 pin and 42 pin simultaneously, system requirements when satisfying the node high-speed cruising provide low-frequency clock signal to reduce system capacity consumption when being node dormancy simultaneously, prolong the node mission life, and provide a manual button reset function by 10, make enforceable the restarting of node enter workflow once more under special circumstances.32 pin are connected with external antenna by the Antenna Impedance Matching module with 34 pin, to receive and to send data.The P0 mouth is the input end of analog signal mouth, is connected with interface module.
As shown in figure 16, network is based on the ZigBee agreement, and this protocol and requirement is simplified, to reduce system maintenance and to reduce the joint behavior demand.In network, defined 3 kinds of roles: first is network coordination person (Coordinator), is responsible for the foundation of network, and the distribution of network site; Second is router (Router), mainly is responsible for looking for, the routed path of foundation and restoration information bag, and is responsible for passing on packets of information; The 3rd is end equipment (RFD), can only select to add the network that other people have formed, can receive and send messages, but can not forwarding information, do not possess routing function.Figure below is a canonical topology structure of its support.Netted and the String structure of this network support can be supported the network of 65536 nodes at most in a zone; The transmission of support multi-hop, such framework is not only the expansion to transmission range, also can keep the operation of system under the situation that part of nodes lost efficacy to greatest extent, improves resistance to overturning; Simultaneously, network also has the strong characteristics of transmission directivity, is convenient to the data centralization management.Wireless sensor network has the ability of self-organizing network, when node finds that route is obstructed, can seek suitable route automatically and reorganize network, prolong network life to greatest extent, and network topology can be carried out corresponding conversion according to the duty of each node.
As shown in figure 17, node is sought route after finishing initialization action, add network, then the data of gathering is sent after handling; If route is not smooth, searches for route adding network again and repeat this process.
Workflow:
(1), probe is demarcated
It is important preliminary work before probe uses that probe is demarcated.The process of demarcating is the process that a standard is transmitted, and just can correctly represent gas concentration to be measured through the probe of demarcating.The step of demarcating is as follows:
1. use N
2Purge probe;
2. the sensing probe preheating is more than 15 minutes;
3. in probe, pour calibrating gas;
4. the output signal of measuring sonde is until stable;
5. the concentration of record standard gas and probe are exported stationary value.
(2), signal Processing
Integrated 51 nuclears of an enhancement mode in the CC2430 chip, after finishing networking, can handle accordingly the data of gathering, make each node all have the function of distributed treatment, simultaneously, the center of the converging data transmission that all can be received to signal analysis and processing module 3 (PC) to do further processing.
After above-mentioned probe demarcation is finished, calibrated related data is imported the radio sensing network node of interface with it, and the data of utilizing the gusset plate borne processor that probe is gathered are handled, and related data is compressed, to reduce volume of transmitted data, cut down the consumption of energy.
Claims (4)
1, a kind of intelligent hydrogen leakage detecting system based on radio sensing network, it is characterized in that: it comprises hydrogen quick probe module (1), cordless communication network module (2) and signal analysis and processing module (3), hydrogen quick probe module (1) links to each other with signal analysis and processing module (3) by cordless communication network module (2), hydrogen quick probe module (1) is carried out filtering and conditioning to data-signal after finishing demarcation, by cordless communication network module (2) analog data signal is gathered and changed, and handle according to calibration result, make judgement according to result, and result transferred to the center of converging (25) by wireless mode, transfer to signal analysis and processing module (3) then; Described hydrogen quick probe module (1) is installed in the shell (4), this shell (4) comprises housing (41), tightening conveyor screw (42) and adapter (43), adapter (43) links to each other with an end of housing (41), tightening conveyor screw (42) be sheathed in the other end of housing (41) and and housing (41) between form the shaft shoulder (44), the circuit board of hydrogen quick probe module (1) is fixed on the shaft shoulder (44).
2, the intelligent hydrogen leakage detecting system based on radio sensing network according to claim 1, it is characterized in that: described hydrogen quick probe module (1) comprises hydrogen-sensitive element (11), heater circuit unit (12), modulate circuit unit (13), power supply conditioning module (14) and electric connector (15), be used for the heater circuit unit (12) of hydrogen-sensitive element (11) heating is linked to each other with modulate circuit unit (13), the power supply that inserts by electric connector (15) is each parts power supply after power supply conditioning module (14).
3, intelligent hydrogen leakage detecting system based on radio sensing network according to claim 2, it is characterized in that: described modulate circuit unit (13) comprises exciting circuit unit (131), anti-aliasing filter unit (132) and impedance inverter circuit (133), exciting circuit unit (131), (133) three parts of anti-aliasing filter unit (132) and impedance inverter circuit are connected in series in proper order according to front and back, exciting circuit unit (131) excites the chemical signal of hydrogen-sensitive element (11), the chemical signal of hydrogen-sensitive element (11) is changed into electric signal, anti-aliasing filter unit (132) carries out filtering to the electric signal of exciting circuit unit (131) output, weaken high-frequency signal, impedance inverter circuit (133) is connected with anti-aliasing filter unit (132), improves the carrying load ability of system by the output impedance that improves anti-aliasing filter unit (132).
4, according to claim 1 or 2 or 3 described intelligent hydrogen leakage detecting systems based on radio sensing network, it is characterized in that: described cordless communication network module (2) adopts the CC2430 wireless sensor network node, the CC2430 wireless sensor network node comprises CC2430 chip (21), interface module (22), power module (23), antenna matching module (24) is formed, the inner integrated AD modular converter of CC2430 chip (21) (211) wherein, processor module (212), radio-frequency communication module (213) and memory module (214), the interface module (22) that is used for linking to each other with hydrogen quick probe module (1) links to each other with processor module (212) by AD modular converter (211) conversion back, processor module (212) is finished the system group network agreement and data-signal is handled, data after the output terminal of this processor module (212) will be handled by radio-frequency communication module (213) export the center of converging (25) to wirelessly by antenna matching module (24), transfer to signal analysis and processing module (3) then, being used for the memory module (214) of stored programme and related data links to each other with processor module (212), and power module (23) is above-mentioned each parts power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100360952A CN100492430C (en) | 2007-11-09 | 2007-11-09 | Intelligent hydrogen leakage detecting system based on wireless sensing network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100360952A CN100492430C (en) | 2007-11-09 | 2007-11-09 | Intelligent hydrogen leakage detecting system based on wireless sensing network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101174355A CN101174355A (en) | 2008-05-07 |
| CN100492430C true CN100492430C (en) | 2009-05-27 |
Family
ID=39422843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100360952A Expired - Fee Related CN100492430C (en) | 2007-11-09 | 2007-11-09 | Intelligent hydrogen leakage detecting system based on wireless sensing network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100492430C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607771B (en) * | 2012-02-23 | 2014-07-09 | 中山大学 | Simulation method and system for online detection of hydrogen leakage |
| CN106373361B (en) * | 2016-08-31 | 2019-07-23 | 北京浩坤科技有限公司 | Wireless collection transmission device and method |
| CN110555976A (en) * | 2019-07-30 | 2019-12-10 | 杭州蓝捷氢能科技有限公司 | Hydrogen leakage alarm device for hydrogen storage device |
-
2007
- 2007-11-09 CN CNB2007100360952A patent/CN100492430C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 基于ZigBee技术的射频芯片CC2430. 马永强，李静强，冯立营.单片机与嵌入式系统应用，第2006年03期. 2006 |
| 基于ZigBee技术的射频芯片CC2430. 马永强，李静强，冯立营.单片机与嵌入式系统应用，第2006年03期. 2006 * |
| 基于无线传感器网络的监控平台设计. 李春杰，刘瑞霞，王继志.传感技术学报，第19卷第1期. 2006 |
| 基于无线传感器网络的监控平台设计. 李春杰，刘瑞霞，王继志.传感技术学报，第19卷第1期. 2006 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101174355A (en) | 2008-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102693615B (en) | Gatherer device of wireless ad-hoc network meter reading system, and operation method | |
| CN206249548U (en) | Environmental detection set based on low power loss communication network Yu sensor integration technology | |
| US9869569B2 (en) | Method and device for remotely sensing and monitoring physical quantities with low power ad hoc network | |
| CN201130952Y (en) | Intelligent control system for numeralization formations furniture based on ZigBee technique | |
| CN107623389A (en) | A kind of wireless charging sensor network nodes hardware system collected based on RF energy | |
| CN206832310U (en) | A kind of wireless watermeter using LoRaWAN Class B-modes | |
| CN109375046A (en) | A kind of non-formula electric energy meter of registering one's residence of multi-frequency based on plc communication technology is visited one house after another examination device and method | |
| CN202736263U (en) | Collector device of wireless ad hoc network meter reading system | |
| CN202018435U (en) | Wireless gas sensor | |
| Dener | WiSeN: A new sensor node for smart applications with wireless sensor networks | |
| CN101784132A (en) | Wireless sensor network gateway equipment supporting Zigbee protocol and GPRS communication standard | |
| CN104882919A (en) | Wireless transmission-based battery pack of battery management system | |
| CN101917207A (en) | Sensing node circuit adapting to various sensors | |
| Gomes et al. | WECO: A wireless platform for monitoring recycling point spots | |
| CN1953378A (en) | A communication device for wireless sensor network communication base station | |
| CN100492430C (en) | Intelligent hydrogen leakage detecting system based on wireless sensing network | |
| CN102169623A (en) | Distributed geological disaster monitoring and acquiring transmission instrument | |
| CN201097457Y (en) | Railway signal monitoring network system based on ZigBee | |
| CN104994536B (en) | A kind of configuration method and portable configuration device towards WSCN nodes | |
| CN207011000U (en) | Wireless sensing network system | |
| CN1937542A (en) | Wireless sensing network node energy-consumption monitoring device and energy-consumption monitoring method | |
| CN103164941A (en) | Wireless remote monitoring system and wireless remote monitoring method | |
| CN201673594U (en) | Wireless sensing device and sensing system | |
| CN206906342U (en) | Air pollution surveillance system based on ZigBee-network | |
| CN206294351U (en) | Repeater disposes device and Internet of things system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20161109 |