CN202679417U - Monitoring system for carrying out monitoring alarm on carbon monoxide gas, wireless carbon monoxide sensor node and monitoring alarm - Google Patents
Monitoring system for carrying out monitoring alarm on carbon monoxide gas, wireless carbon monoxide sensor node and monitoring alarm Download PDFInfo
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- CN202679417U CN202679417U CN 201120541381 CN201120541381U CN202679417U CN 202679417 U CN202679417 U CN 202679417U CN 201120541381 CN201120541381 CN 201120541381 CN 201120541381 U CN201120541381 U CN 201120541381U CN 202679417 U CN202679417 U CN 202679417U
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Abstract
The utility model discloses a monitoring system for carrying out monitoring alarm on carbon monoxide gas. The monitoring system comprises a wireless carbon monoxide sensor node, a monitoring alarm, a relay node, a gateway node and a monitoring center. The carbon monoxide detection sensor node is used for monitoring the carbon monoxide gas at an installation spot, carrying out local audible and visual alarm when the carbon monoxide concentration exceeds a standard, and sending an alarm signal to the monitoring alarm. The monitoring alarm is used for carrying out local audible and visual alarm after receiving the alarm signal of the wireless carbon monoxide sensor node, and sending the alarm signal to the monitoring center through a relay node and a gateway node. The carbon monoxide monitoring system based on a wireless sensor network possesses a plurality of functions such as wireless ad hoc networks, information processing, wireless transmission, carbon monoxide gas concentration measurement, and carbon monoxide gas concentration excess alarm. The wireless sensor network can be formed and reliable data transmission can be realized.
Description
Technical field
The utility model relates to a kind of gas-monitoring alarm technique field, relates in particular to a kind of CO (carbon monoxide converter) gas to be carried out the supervisory control system of monitoring alarm, wireless carbon monoxide transducer node and monitoring alarmer.
Background technology
Along with the develop rapidly of the communication technology, embedded computing technique and sensor technology and increasingly mature, has the wireless sensor network of perception, computing capability and communication capacity as an important directions of information technology research and development, become gradually field most active in the computer science research, have broad application prospects.Wireless sensor network combines sensor technology, embedded computing technique, distributed information processing and the communication technology, the collaboratively various environment in Real-Time Monitoring, perception and the collection network distributed areas or the information of monitoring target, and these information are processed, obtain detailed and information accurately, be sent to the user who needs these information.Therefore wireless sensor network can make people obtain a large amount of accurate and reliable information at any time and place with under any environmental condition, and this network system can be widely used in national defense and military, national security, environmental monitoring, traffic administration, health care, manufacturing industry, anti-terrorism and the field such as combat a natural disaster.
Because the huge applications of wireless sensor network is worth, the very big concern of its oneself military service, industrial quarters and academia through having caused world many countries.Information industries circle such as Intel, MS giant has also begun the work of sensor network aspect, sets up one after another or starts corresponding action plan.The countries such as Japan, Britain, Italy, Brazil have also shown great interest to sensor network, have launched one after another the research work in this field.Sensor network is a revolution of information Perception and collection.Can predict, in the near future, wireless sensor network will change the interactive mode of man and nature circle, bring revolutionary variation for our life style.Therefore, wireless sensor network is considered to one of most important technology of 21 century.
Particularly, wireless sensor network refers to that the information spreading network that adopts communications to form by a large amount of sensor nodes, purpose are the information of perceptive object in the geographic area of collaboratively perception, the acquisition and processing network coverage, and is distributed to the observer.But but the many merits such as the monitoring high accuracy that the characteristics that wireless-sensor network distribution type is processed are brought, high fault tolerance, large overlay area remote monitoring rapid build, deployment convenience, be not vulnerable to the restriction of targeted environment, be particularly suitable for being arranged in power supply and supply with the zone of difficulty or the zone that personnel are difficult for arriving (ruthless area, hostile position etc.), these advantages can be widely used in military affairs, environment, health care, space exploration and various commercial the application.
Wireless sensor network is a kind of special Adhoc network, and its node is the promoter of packets of information, also is the forwarding person of packets of information.Node sends data in the Adhoc mode to gateway, again with external network communication, such as Internet, satellite or mobile communications network etc.Communicate in the AdHoc mode between node, each node can serve as the role of router, and each node possesses the ability that News Search, location and recovery are connected.
At present, along with the acceleration of urbanization process, increasing people begins to enter the city, but urban infrastructure obviously lags behind, for example, in the zone and part villages within the city of the combination area of city and country of a large amount of population collections, still adopt and burn the coal mode and cook or carry out warming.The inhabitation structure of villages within the city mainly be a landlord will have by oneself the house rent to many families other, the heating mode in these other winters is mainly and burns the coal heating, as easy as rolling off a log generation anthracemia causes irremediable life and property loss.In the rural area, also still to burn the coal warming ﹠ cooking as main, also there is the risk of anthracemia in the warming mode in the man of peasant household.
Therefore, how monitor in the CO (carbon monoxide converter) gas in the villages within the city that do not have central heating or village winter, in time send alarm signal when carbon monoxide gas concentration is too high, the generation of prevention anthracemia injures and deaths event becomes a realistic problem that needs solution.
Because the carbon monoxide monitoring can adopt corresponding carbon monoxide transducer to detect, therefore, how based on carbon monoxide transducer and utilize wireless sensor network technology to realize CO (carbon monoxide converter) gas is carried out monitoring alarm, become the technical problem that solves the anthracemia problem.
The utility model content
Technical problem to be solved in the utility model is, CO (carbon monoxide converter) gas is carried out the supervisory control system of monitoring alarm, wireless carbon monoxide transducer node and monitoring alarmer, be used for solving technical problem how to utilize wireless sensor network technology to realize CO (carbon monoxide converter) gas is carried out monitoring alarm, avoid anthracemia.
In order to address the above problem, the utility model proposes a kind of supervisory control system of CO (carbon monoxide converter) gas being carried out monitoring alarm, comprising: wireless carbon monoxide transducer node, monitoring alarmer, via node, gateway node, Surveillance center, wherein:
Wireless carbon monoxide transducer node for the CO (carbon monoxide converter) gas of monitoring mounting points, carries out local sound and light alarm when carbonomonoxide concentration exceeds standard, send alarm signal to monitoring alarmer;
Monitoring alarmer is used for carrying out local sound and light alarm after the alarm signal of receiving wireless carbon monoxide transducer node, also alarm signal is sent to Surveillance center through via node, gateway node.
Wherein, described wireless carbon monoxide transducer node also is used for alarm signal is sent to Surveillance center through via node, gateway node; Described Surveillance center is used for issuing alarm signal by gateway node, via node to monitoring alarmer; Monitoring alarmer is reported to the police according to the alarm signal of receiving.
Wherein, described wireless carbon monoxide transducer node, monitoring alarmer, via node, gateway node, Surveillance center adopt the wireless self-organization network networking, form the MESH network between the via node, gateway node reports to Surveillance center by the GPRS mode.
Wherein, a monitoring alarmer can monitor a plurality of wireless carbon monoxide transducer nodes, and a plurality of monitoring alarmers and via node form star-network; A plurality of wireless carbon monoxide transducer nodes and via node form star-network.
Wherein, described wireless carbon monoxide transducer node, monitoring alarmer, via node, gateway node utilize the Xbee module to carry out ad hoc network communication; Described monitoring alarmer, via node also utilize the CC1100 module to communicate.
The present invention also provides a kind of wireless carbon monoxide transducer node, and this is wireless, and the carbon monoxide transducer node comprises: power module, sensor for detecting carbon monoxide module, communication module and alarm device module, wherein:
Described power module is sensor for detecting carbon monoxide module, communication module and alarm device module for power supply;
The sensor for detecting carbon monoxide module, for detection of the carbonomonoxide concentration in the space environment, after carbonomonoxide concentration exceeds standard, send alarm signal and carry out local audible alarm or optics warning or the same alarm of acousto-optic to the alarm device module, be used for sending alarm signal to communication module, by communication module this alarm signal be sent to outside monitoring alarmer.Described communication module comprises the Xbee module; It is individual to via node that described communication module utilizes the Xbee module that alarm signal is sent.
The present invention also provides a kind of monitoring alarmer, and this monitoring alarmer comprises: power module, processor module, communication module, alarm device module and LCD MODULE, wherein:
Described power module is used to processor module, communication module, alarm device module and LCD MODULE power supply;
Described communication module is used for communicating with wireless carbon monoxide transducer node and via node, receives the alarm signal of wireless carbon monoxide transducer node, after alarm signal is issued processor module and processed, sends alarm signal to via node;
Processor module, for the treatment of received alarm signal, control alarm device module is sent alarm signal, controls described LCD MODULE warning message is shown, perhaps the information that issues from via node is shown.
Wherein, described communication module comprises Xbee module and CC1100 module.Wherein, described communication module also is used for receiving the alarm signal from via node.
Employing wireless sensor network technique of the present utility model carries out monitoring alarmer, wireless carbon monoxide transducer node and the supervisory control system of CO (carbon monoxide converter) gas monitoring, combine computer, radio communication and information dissemination technology, wanting monitored zone installation carbon monoxide transducer node, the carbon monoxide gas concentration of the measurement certain area that each sensor node can be real-time; Sensor node has convenient the installation, the convenient transfer, the characteristics such as convenient use; Carbon monoxide transducer node and relaying form star network, can automatically form the mesh network between the relaying, transfer data to gateway by wireless sensor network; In certain guarded region, gateway node is installed, is can be used for receiving the measurement data of transmitting out by wireless sensor network, carry out local reception and monitoring; Gateway node links to each other with Internet by GPRS, and to Surveillance center, Surveillance center carries out long-range reception and monitoring to the data of guarded region with transfer of data.
Description of drawings
Fig. 1 is the supervisory control system structural representation that CO (carbon monoxide converter) gas is carried out monitoring alarm;
Fig. 2 carries out wireless sensor for detecting carbon monoxide node schematic diagram in the supervisory control system of monitoring alarm to CO (carbon monoxide converter) gas;
Fig. 3 carries out monitoring alarm module diagram in the supervisory control system of monitoring alarm to CO (carbon monoxide converter) gas;
Fig. 4 is the concrete application example schematic diagram of monitoring alarm;
Fig. 5 carries out via node schematic diagram in the supervisory control system of monitoring alarm to CO (carbon monoxide converter) gas;
Fig. 6 is the concrete application example schematic diagram of via node;
Fig. 7 carries out gateway node schematic diagram in the supervisory control system of monitoring alarm to CO (carbon monoxide converter) gas;
Fig. 8 is the concrete application example schematic diagram of gateway node.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, a kind of supervisory control system of CO (carbon monoxide converter) gas being carried out monitoring alarm of the present utility model comprises: wireless carbon monoxide transducer node, monitoring alarmer, via node, gateway node, Surveillance center, wherein:
Wireless carbon monoxide transducer node, the CO (carbon monoxide converter) gas that is used for the monitoring mounting points, when carbonomonoxide concentration exceeds standard, carry out local sound and light alarm, send alarm signal to monitoring alarmer, also alarm signal is sent to Surveillance center through via node, gateway node;
Monitoring alarmer is used for carrying out local sound and light alarm after the alarm signal of receiving wireless carbon monoxide transducer node, also alarm signal is sent to Surveillance center through via node, gateway node.
A monitoring alarmer can monitor a plurality of wireless carbon monoxide transducer nodes, and monitoring alarmer and via node form star-network, and a via node can be served a plurality of monitoring alarmers and a plurality of wireless carbon monoxide transducer node; And forming the mesh network between the via node, the alarm signal of transmitting by two-level network finally converges to gateway node; Be reported to again the Surveillance center of networking by the GPRS mode by gateway node.
Wireless carbon monoxide transducer node generally can be installed in the man of resident family, also can be installed in the place that other need to carry out the carbon monoxide monitoring.When carbonomonoxide concentration exceeded standard, the event that carbonomonoxide concentration exceeds standard that occured also can be known in Surveillance center.Further, if the identification information of combining geographic location information and wireless carbon monoxide transducer etc. can be known the particular location that warning occurs, Surveillance center is after receiving alarm signal, also can be according to the identification information of wireless carbon monoxide transducer and/or identification information or the register information of monitoring alarmer, warning message is notified the supervision personnel of monitoring alarmer, for example notify the landlord that alert event occurs by the mobile phone or the landline telephone that warning message are sent to landlord's mobile phone or dial the landlord, perhaps with alarm signal by the monitoring alarmer of network-feedback to the landlord place.
This supervisory control system, the carbonomonoxide concentration that monitors for the wireless carbon monoxide transducer event that exceeds standard, can realize the local warning of concentration over-standard, three grades of warnings that report to the police in the guarder location, Surveillance center reports to the police, unmanned situation about disposing occurs after can fully avoiding the event of exceeding standard, and has increased system reliability.
As shown in Figure 2, provided the structural representation of wireless carbon monoxide transducer node, sensor node comprises: power module, sensor for detecting carbon monoxide module, communication module and alarm device module.Described power module, sensor for detecting carbon monoxide module, communication module and alarm device module can be installed on the carbon monoxide transducer base plate, are sensor for detecting carbon monoxide module, communication module and alarm device module for power supply by power module.Wherein:
The sensor for detecting carbon monoxide module is for detection of the carbonomonoxide concentration in the space environment, after carbonomonoxide concentration exceeds standard, send alarm signal and carry out local audible alarm or optics warning or the same alarm of acousto-optic to the alarm device module, send simultaneously alarm signal to communication module, by communication module this alarm signal is sent to monitoring alarmer.
Perhaps, wireless carbon monoxide transducer node can be installed in the man of resident family, when exceeding standard, carbonomonoxide concentration can carry out local sound and light alarm, when reporting to the police in this locality, alarm signal is sent to via node, by self-organizing network warning message is uploaded to Surveillance center, Surveillance center is according to warning message, can issue relief information to landlord's alarm, remind the landlord in time to rescue the people.
Particularly, wireless communication module comprises antenna, radio circuit and radio frequency chip.Wireless communication module is used for wireless networking and radio communication, can organize themselves into WLAN (wireless local area network), sends data to terminal by network.Comprise in the described wireless communication module that the CC1100 submodule is used for communicating with monitoring alarmer and via node.
Carbon monoxide monitoring system based on wireless sensor network of the present utility model has the several functions such as wireless self-networking, information processing, wireless transmission, carbon monoxide gas concentration measurement, the excessive warning of carbon monoxide gas concentration, can form wireless sensor network and realize reliable transfer of data.
Wireless carbon monoxide transducer node of the present utility model adopts modularized design, with radio-frequency module, power module, processor module and data acquisition module separately, by the standard interface independent assortment, carries out transfer of data.Because energy consumption, sample rate, response time and data-handling capacity to node in different applied environments have different requirements, node should split into a plurality of assemblies according to function, can pass through the standard interface independent assortment between the assembly.Like this, under different application scenarios, select the different free configuration-systems of assembly just can meet the demands, also help to control cost.Simultaneously, modularized design has also effectively reduced the volume of node.
Further, based on the system of the carbon monoxide of Figure 1 and Figure 2 monitoring and the structure of detection node, with the sensor for detecting carbon monoxide module, be replaced by other hazardous gas detecting sensor module, monitor and alarm system of the present utility model also can be used for the monitoring, alarming of corresponding gas realization based on wireless self-organization network.For example in the chemical plant, ammonia or chlorine are monitored, only need be replaced by the ammonia detecting sensor, or the chlorine detecting sensor of corresponding chlorine; For example in semiconductor factory, can adopt the silane detecting sensor to silane, borine is adopted the borine detecting sensor, phosphine is adopted the phosphine detecting sensor; For example in mine, utilize the gas detecting sensor to detect to gas density.
As shown in Figure 3, provided the structural representation of monitoring alarm.Monitoring alarm comprises: power module, processor module, communication module, alarm device module and LCD MODULE.Described power module is processor module, communication module, alarm device module and LCD MODULE power supply.
Communication module is used for communicating with wireless carbon monoxide transducer node and via node, receives the alarm signal of wireless carbon monoxide transducer node, after alarm signal is issued processor module and processed, sends alarm signal to via node.
Processor module, for the treatment of received alarm signal, control alarm device module is sent alarm signal, described alarm signal comprises sound alarm signal and optics alarm signal, control described LCD MODULE warning message is shown, perhaps the information that issues from network monitoring center is shown.
Communication module can comprise CC1100 submodule and Xbee submodule, as shown in Figure 4, and the schematic diagram when having provided a kind of implementation of monitoring alarm.Processor module adopts MCU MEGA128, and the alarm device module adopts buzzer siren.Power module utilizes 1117 submodules output 3.3V power voltage supply by LM2576 submodule input 12V voltage.
As shown in Figure 5, provided the structural representation of via node, via node comprises power module, communication module, processor module.The function that relaying is realized is mainly the transmission range of extension sensor node, forms wireless mesh network, the transmission of data.
Described power module is processor module, communication module power supply.
Communication module, be used for communicating with wireless carbon monoxide transducer node, monitoring alarm and gateway node, up direction, receive the alarm signal of wireless carbon monoxide transducer node and/or monitoring alarm, after alarm signal issued processor module and process, send alarm signal, down direction to gateway node, receive the lower photos and sending messages of Surveillance center, lower photos and sending messages is handed down to monitoring alarm.
Processor module, for the treatment of received alarm signal and described lower photos and sending messages, the control communication module is carried out uplink and downlink communication.
As shown in Figure 6, provided a kind of embodiment schematic diagram of via node, communication module can comprise CC1100 submodule and Xbee submodule, processor module adopts MCU MEGA128, power module input 220V voltage, output 5V voltage is changed output 3.3V power voltage supply again to 1117 submodules.
As shown in Figure 7, provided the structural representation of gateway node, gateway comprises power module, processor module, communication module.
Described power module is processor module, communication module power supply.
Communication module, be used for communicating with via node and Surveillance center, up direction, receive the alarm signal of via node, after alarm signal issued processor module and process, send alarm signal, down direction to Surveillance center, receive the lower photos and sending messages of Surveillance center, lower photos and sending messages is handed down to via node.
Processor module, for the treatment of received alarm signal and described lower photos and sending messages, the control communication module is carried out uplink and downlink communication.
As shown in Figure 8, provided the instance graph of a kind of embodiment of gateway node.Communication module can comprise GPRS submodule and Xbee submodule, and processor module adopts MCU MEGA128.The major function of gateway is the aggregation networks data, uploads to the ipc monitor center.Data communication device is crossed the Xbee module that is set to gateway and is converged to gateway, and the serial port pin of process mega128 is transferred to the mega128 chip and processes, and the data communication device after the processing is crossed the GPRS module and is transferred to the Internet, and is ultimately delivered to the data monitoring processing center.
Based on above-mentioned supervisory control system and each node and the module that carbon monoxide is monitored, of the present utility modelly CO (carbon monoxide converter) gas is carried out monitoring alarm can adopt various ways to report to the police.
Monitoring alarm mode 1:
Sensor for detecting carbon monoxide node monitoring carbonomonoxide concentration sends alarm signal to monitoring alarm when carbonomonoxide concentration exceeds standard, monitoring alarm receives that alarm signal carries out well local sound and light alarm.
Monitoring alarm mode 2:
Sensor for detecting carbon monoxide node monitoring carbonomonoxide concentration sends alarm signal to monitoring alarm when carbonomonoxide concentration exceeds standard, monitoring alarm receives that alarm signal carries out well local sound and light alarm; Simultaneously alarm signal is sent to via node, via node sends to Surveillance center by gateway node with alarm signal.
Monitoring alarm mode 3:
Sensor for detecting carbon monoxide node monitoring carbonomonoxide concentration sends to via node with alarm signal when carbonomonoxide concentration exceeds standard, via node sends to Surveillance center by gateway node with alarm signal.
Monitoring alarm mode 4:
Sensor for detecting carbon monoxide node monitoring carbonomonoxide concentration sends to via node with alarm signal when carbonomonoxide concentration exceeds standard, via node sends to Surveillance center by gateway node with alarm signal.
Monitoring alarm mode 5:
Sensor for detecting carbon monoxide node monitoring carbonomonoxide concentration sends to via node with alarm signal when carbonomonoxide concentration exceeds standard, via node sends to Surveillance center by gateway node with alarm signal;
Surveillance center issues warning message by gateway node, via node to monitoring alarm, and monitoring alarm carries out local sound and light alarm according to warning message.
The system that CO (carbon monoxide converter) gas is carried out monitoring alarm of the present utility model can adopt above-mentioned any mode independently to realize reporting to the police, and also can adopt the compound mode of aforesaid way to report to the police.
The above is embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.
Claims (10)
1. supervisory control system of CO (carbon monoxide converter) gas being carried out monitoring alarm comprises: wireless carbon monoxide transducer node, monitoring alarmer, via node, gateway node, Surveillance center, wherein:
Wireless carbon monoxide transducer node for the CO (carbon monoxide converter) gas of monitoring mounting points, carries out local sound and light alarm when carbonomonoxide concentration exceeds standard, send alarm signal to monitoring alarmer;
Monitoring alarmer is used for carrying out local sound and light alarm after the alarm signal of receiving wireless carbon monoxide transducer node, also alarm signal is sent to Surveillance center through via node, gateway node.
2. supervisory control system as claimed in claim 1 is characterized in that,
Wireless carbon monoxide transducer node also is used for alarm signal is sent to Surveillance center through via node, gateway node;
Surveillance center is used for issuing alarm signal by gateway node, via node to monitoring alarmer; Monitoring alarmer is reported to the police according to the alarm signal of receiving.
3. supervisory control system as claimed in claim 1 or 2 is characterized in that,
Described wireless carbon monoxide transducer node, monitoring alarmer, via node, gateway node, Surveillance center adopt the wireless self-organization network networking, form the MESH network between the via node, and gateway node reports to Surveillance center by the GPRS mode.
4. supervisory control system as claimed in claim 3 is characterized in that,
A monitoring alarmer can monitor a plurality of wireless carbon monoxide transducer nodes,
A plurality of monitoring alarmers and via node form star-network;
A plurality of wireless carbon monoxide transducer nodes and via node form star-network.
5. supervisory control system as claimed in claim 1 is characterized in that,
Described wireless carbon monoxide transducer node, monitoring alarmer, via node, gateway node utilize the Xbee module to carry out ad hoc network communication;
Described monitoring alarmer, via node also utilize the CC1100 module to communicate.
6. a wireless carbon monoxide transducer node is characterized in that, this is wireless, and the carbon monoxide transducer node comprises: power module, sensor for detecting carbon monoxide module, communication module and alarm device module, wherein:
Described power module is sensor for detecting carbon monoxide module, communication module and alarm device module for power supply;
The sensor for detecting carbon monoxide module, for detection of the carbonomonoxide concentration in the space environment, after carbonomonoxide concentration exceeds standard, send alarm signal and carry out local audible alarm or optics warning or the same alarm of acousto-optic to the alarm device module, be used for sending alarm signal to communication module, by communication module this alarm signal be sent to outside monitoring alarmer.
7. a kind of wireless carbon monoxide transducer node as claimed in claim 6 is characterized in that,
Described communication module comprises the Xbee module; It is individual to via node that described communication module utilizes the Xbee module that alarm signal is sent.
8. a monitoring alarmer is characterized in that, this monitoring alarmer comprises: power module, processor module, communication module, alarm device module and LCD MODULE, wherein:
Described power module is used to processor module, communication module, alarm device module and LCD MODULE power supply;
Described communication module is used for communicating with wireless carbon monoxide transducer node and via node, receives the alarm signal of wireless carbon monoxide transducer node, after alarm signal is issued processor module and processed, sends alarm signal to via node;
Processor module, for the treatment of received alarm signal, control alarm device module is sent alarm signal, controls described LCD MODULE warning message is shown, perhaps the information that issues from via node is shown.
9. monitoring alarmer as claimed in claim 8 is characterized in that,
Described communication module comprises Xbee module and CC1100 module.
10. monitoring alarmer as claimed in claim 8 is characterized in that,
Described communication module also is used for receiving the alarm signal from via node.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722963A (en) * | 2011-12-21 | 2012-10-10 | 北京时代凌宇科技有限公司 | System, apparatus and method for carrying out monitoring alarm on carbon monoxide gas |
| CN103426273A (en) * | 2013-08-21 | 2013-12-04 | 深圳市戴维莱实业有限责任公司 | Wireless gas alarm ad-hoc network |
| CN105203722A (en) * | 2015-11-13 | 2015-12-30 | 上海斐讯数据通信技术有限公司 | Distributed formaldehyde concentration monitoring device and method based on CAN (Controller Area Network) bus |
| CN105243795A (en) * | 2015-11-05 | 2016-01-13 | 河海大学 | Self-adaptive wireless relay gas detection alarm system and laying method thereof |
-
2011
- 2011-12-21 CN CN 201120541381 patent/CN202679417U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722963A (en) * | 2011-12-21 | 2012-10-10 | 北京时代凌宇科技有限公司 | System, apparatus and method for carrying out monitoring alarm on carbon monoxide gas |
| CN103426273A (en) * | 2013-08-21 | 2013-12-04 | 深圳市戴维莱实业有限责任公司 | Wireless gas alarm ad-hoc network |
| CN105243795A (en) * | 2015-11-05 | 2016-01-13 | 河海大学 | Self-adaptive wireless relay gas detection alarm system and laying method thereof |
| CN105203722A (en) * | 2015-11-13 | 2015-12-30 | 上海斐讯数据通信技术有限公司 | Distributed formaldehyde concentration monitoring device and method based on CAN (Controller Area Network) bus |
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Address after: 100096 Beijing City, Haidian District Xisanqi building materials City Road No. 18 building 4 layer Bestpower Patentee after: Beijing times Polytron Technologies Inc Address before: 100096 Beijing City, Haidian District Xisanqi building materials City Road No. 18 building 4 layer Bestpower Patentee before: Beijing LOIT Technology Co., Ltd. |
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