CN201623860U - Wireless sensor network and water quality monitoring system based on sensor network - Google Patents
Wireless sensor network and water quality monitoring system based on sensor network Download PDFInfo
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- CN201623860U CN201623860U CN2009202456615U CN200920245661U CN201623860U CN 201623860 U CN201623860 U CN 201623860U CN 2009202456615 U CN2009202456615 U CN 2009202456615U CN 200920245661 U CN200920245661 U CN 200920245661U CN 201623860 U CN201623860 U CN 201623860U
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Abstract
The utility model provides a wireless sensor network and a water quality monitoring system based on the sensor network, wherein the wireless sensor network comprises a plurality of nodes of a wireless sensor and a sink node, which are used for measuring environmental parameters; and the nodes of the wireless sensor and the sink node are connected in a wireless mode. The wireless sensor network effectively combines the modern wireless communication technology and the wire communication technology to form a complete set of environmental monitoring system, and thereby overcoming the defect in the traditional monitoring scheme, and having the advantages of practicability and advancement.
Description
Technical field
The utility model relates to a kind of wireless sensor network, and based on the water quality monitoring system of this sensor network.
Background technology
Wireless sensor network (wireless sensor network) is the research field of a focus, and it has a wide range of applications in environmental monitorings such as forest fire protection, monitoring water quality and military affairs, medical treatment ﹠ health, family intelligent monitoring and other commercial fields.Wireless sensor network has sensor node density height, and network organizing is convenient, and the characteristics such as low in energy consumption of node.The ZigBee technology be a kind of closely, low complex degree, low-power consumption, low data rate, two-way wireless communication technology cheaply, its network standard is based on IEEE 802.15.4.Mainly be suitable for control and remote control field automatically, can embed in the various device, support geographic positioning functionality simultaneously.ZigBee remainder, view external member are made up of higher layer applications standard, application convergence layer, network layer, data link layer and physical layer, wherein physical layer is followed IEEE 802.15.4 agreement, and spread spectrum communication is adopted in the work of control RF transceiver, signal transmission distance is indoor 50m, outdoor 150m.The MAC layer: follow IEEE 802.15.4 agreement, be responsible for the equipment room wireless data link, support various network topologies, each equipment is 16 bit address addressing in the network.Network layer is set up new network, and the entering and deviated from network of processing node distributed the address to node, guarantee between the node synchronously, the route of network is provided, guarantee the integrality of data, use optional AES-128 to communication encryption.Application layer: application support layer is kept the functional attributes of device, makes between a plurality of devices and communicates according to service and demand.Wireless sensing network system is as the technology of up-to-date release, though be widely used in fields such as industry, national defence.
At present, the Zigbee technology has had certain application in fields such as home network, Control Network, mobile terminal of mobile telephone abroad, but each access point of network that existing Zigbee technology constitutes the node number of receptive transducer well below 255 of agreement institute nominal, in order to reach the purpose of the intensive covering of sensor network, just must carry out complicated networking, this has not only increased the complexity of network, has also increased the power consumption of network integral body, the life-span of having reduced sensor node.
Water quality monitoring is water resource environment management and the important foundation of protecting, and is the important means of protection water environment.For the monitoring of water quality and governance relation to the production of all trades and professions and the people's life.Still there are a lot of problems in the water quality detection of China at present, and the one, the sampling scarce capacity at water quality monitorings at different levels center, monitoring frequency is low, the breadboard monitoring instrument ageing equipment of water quality monitoring, large-sized analytic instrument is equipped with uneven.The 2nd, motor-driven monitoring capability deficiency, mobile water quality analysis monitoring experiment chamber is equipped with quantity very little, and the field monitoring ability is low.The 3rd, Automatic Water Quality Monitoring Stations quantity very little.Lack the automatic telemetry ability, the real-time wireless sensing device network (wireless sensor network) that is difficult to obtain the main water quality monitoring in emphasis water function district is the network that adopts the wireless Ad Hoc mode to constitute by a large amount of sensor nodes, and it has a wide range of applications at environmental monitoring, military affairs, medical treatment ﹠ health, family intelligent monitoring and other commercial field.
The utility model content
In order to solve existing technical problem in the background technology, the utility model provides a kind of radio sensing network, Modern wireless communication technology and cable communicating technology are carried out effective combination, form a whole set of environmental monitoring system, overcome the deficiency of traditional monitoring scheme, have practicality and advanced advantage.
Technical solution of the present utility model is: a kind of wireless sensor network is characterized in that: this system comprises and is used for measurement environment parameter wireless sensor node and sink nodes; Described wireless sensor node is a plurality of, and described wireless sensing node is connected by wireless mode with sink nodes.
Above-mentioned sink nodes are a plurality of, described sink nodes and wireless sensor node be one to one or the mode of one-to-many be connected.
Above-mentioned wireless sensor node comprises Zigbee unit, hardware detection unit and processor, and described hardware detection unit, processor and Zigbee unit are connected successively; The environment at described hardware detection unit detecting sensor node place sends information to the Zigbee unit, after the control chip of described Zigbee unit by using self is handled information, sends sink nodes wirelessly to.
Above-mentioned sink nodes comprise Zigbee unit, 16 8-digit microcontrollers and data storage cell; Connect by asynchronous serial port between described Zigbee unit and 16 8-digit microcontrollers; Described data storage cell is connected in 16 8-digit microcontrollers.
Above-mentioned this wireless sensor network also comprises the central site network telegon, and described central site network telegon is connected with sink nodes by wireless mode.
Above-mentioned central site network telegon comprises monitoring unit, dispensing unit and Data Management Unit, and described dispensing unit, monitoring unit and Data Management Unit link to each other successively, and described monitoring unit is communicated by letter with sink nodes by communication serial port.
A kind of water quality monitoring system based on above-mentioned radio sensing network is characterized in that: described water quality monitoring system comprises water quality monitoring base station and control centre's site server; Described water quality monitoring base station is uploaded to control centre's site server with Monitoring Data; Described control centre site server comprises wireless sensor network and water monitoring data processing unit, and described water quality monitoring base station is connected with the water monitoring data processing unit by wireless sensor network.
Above-mentioned monitoring system is a hierarchy, and sink nodes are connected with a plurality of sensor nodes respectively in the described wireless sensor network, and described sensor node transmission data are given sink nodes, pass to data transmission unit after the data fusion.
The communication modes of above-mentioned water quality monitoring base station and control centre's site server is Ethernet, GPRS or PSTN modem dialing.
The radio sensing network technology that the utility model adopts is a kind of emerging short distance, low rate, low power consumption wireless network technology, and it combines sensor technology, embedded computing technique, modern network and wireless communication technology, distributed information processing or the like.By all kinds of integrated microsensors, radio sensing network node is the information of the various environment of monitoring in real time, perception and collection or monitoring target collaboratively, by embedded system information is handled again, pass through the cordless communication network of self-organizing at random at last, institute's perception information is sent to user terminal in the multi-hop relay mode.
Owing to adopt wireless transmission, radio sensing network has overcome the disadvantage of many traditional cable network transmission information.On the one hand, under some physical obstacles and particular surroundings, cable network is impossible realize.On the other hand, compare with traditional artificial antenna communication, the digital radio communication is the huge advantage by fact proved that it had.
In addition, this wireless technology has been carried out standardization to its network layer protocol and API.Complete agreement be used for once can being directly connected to an equipment fundamental node the 4K byte or as the 32K byte of the telegon of Hub or router.Each telegon can connect nearly 255 nodes, several telegons then can form a network, to the number of route transmission then without limits, also developed the link safety layer simultaneously, with guarantee this portable equipment can accidental release its sign, and this long-distance transmissions of network of utilizing can not obtained by other node.
Wireless sensor network of the present utility model has following advantage:
1, the utility model is based on traffic features of smaller between each sensor node and the sink nodes, a kind of hub-and-spoke network topology pattern of waking up during based on demand has been proposed, sensor node is at the environment of monitoring when changing, and can wake up automatically and sink nodes communicate and report relevant information; Otherwise work in sleep state and adopt the low-power supervisory channel,, greatly reduce the probability of message collision when inserting sink nodes, greatly increased the sensor network capacity to save sensor node power consumption and the illegal connected reference request of refusal acceptance.
2, the Zigbee equipment of the utility model application is low power consuming devices, its emission output 0-10dbm, communication distance is 50-100m, has the indication of energy measuring and link-quality, according to these testing results, but the transmitting power of equipment automatic adjustment equipment, under the condition that guarantees communication link quality, minimum ground consumer device energy.
2, time delay is short: time delay is all between 15 milliseconds to 30 milliseconds usually.
3, safe: data integrity inspection and authentication functions are provided, and cryptographic algorithm adopts AES-128, can determine its security attribute flexibly simultaneously.
4, network capacity is big: each network can be supported 255 equipment at most, that is to say, each equipment can be connected with other 254 equipment, and simultaneously, the highly redundant of network has guaranteed that whole network still can run well under the out-of-work situation of individual nodes.
5, good network topology ability: wireless sensing node can be formed with tissue automatically, structure is arranged, self-forming, self-healing network.The loaded down with trivial details layoutprocedure of legacy network has been exempted in the establishment of radio sensing network.As long as the node device in any new adding network is in the wireless communication range, can add existing network automatically, and form the information routed path automatically, information is passed to effective recipient.Under the enough low situation of node device hardware cost, these nodes can be set up into the network of a highly redundant simultaneously, thereby guarantee the powerful self-healing ability of makeing mistakes of network.
6, networking and maintenance cost are low: the characteristic of comprehensive above sensor network, as can be seen, the needed labour cost of networking is very low.As long as any one is placed in the wireless signal coverage of network through the sensing equipment of authorizing, just can add network work automatically, need not any installation configuration.Highly intelligent the reduction to the full extent required manpower and the time of network operation, it is cheap to add upper network node itself, makes that the maintenance cost of intelligent wireless sensing network is extremely low.
The monitoring system that the utility model proposes following advantage arranged:
1, the diversity of monitoring parameter, professional: the water quality monitoring base station mainly be responsible for to be gathered water sample and by various water quality monitoring instruments the various parameters of water sample is monitored, and comprises that pH value, DO, turbidity, water temperature, electricity are led, ammonia nitrogen, basic parameters such as TOC, COD.
2, real-time, intellectuality: the utility model combines the real-time monitoring that advanced embedded computing technique, modern network and wireless communication technology can realize the parameter of water quality microenvironment, and can collect various parameter sensings automatically, realize the real-time, intelligent of environmental monitoring.
3, the Zigbee network is the wireless sensor network of low-power consumption, low cost, high reliability, and the water quality monitoring system of using this network is more effective, convenient, realized the collection and the processing of the various data of water quality reliably.
4, powerful Database Systems: the utility model has utilized technology such as computer, database, realizes the data parsing of a collection, data management, aggregation of data be shown as one multi-functional, highly integrated, towards water quality environment data monitored service system.Simultaneity factor also has powerful history data store, query function, for the user provides comprehensively data, services reliably.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of wireless sensor node of the present utility model;
Fig. 3 is the structural representation of sink nodes of the present utility model;
Fig. 4 is the structural representation of central site network telegon of the present utility model.
Embodiment
Referring to Fig. 1, the utility model provides a kind of wireless sensor network, comprises Zigbee central site network telegon 1, sink nodes 2, Zigbee wireless sensor node 3; Sink nodes 2 are a plurality of radio nodes with routing function; Wireless bridge connects Zigbee wireless network and Ethernet, is inspection center's server part, is responsible for the management of wireless sensor network node and device node.The utility model is based on traffic features of smaller between each sensor node 3 and the sink nodes 2, a kind of hub-and-spoke network topology pattern of waking up during based on demand has been proposed, the basic thought that wakes up during demand is exactly that sensor node 3 is when the environment of monitoring changes, sensor node 3 can be waken up automatically and sink nodes communicate, and report relevant information: otherwise work in sleep state and adopt the low-power supervisory channel, to save sensor node 3 power consumptions and the illegal connected reference request of refusal acceptance, greatly reduce the probability of message collision when inserting sink nodes 2, greatly increased the sensor network capacity.
For a complete wireless sensor node 3, need have small size, low-power consumption, adaptable characteristics, Zigbee equipment is low power consuming devices, its emission output 0～3.6dbm, communication distance is 50-100m, has the indication of energy measuring and link-quality, according to these testing results, can adjust transmitting power automatically, under the condition that guarantees communication link quality, minimum ground consumer device energy, the node of the wireless sensor network that the utility model proposes is when sleep state, and static current of lcd is about 30uA.When sensor network data was communicated by letter, the time that Zigbee sets up once connection was about 20ms, and Duan connect hours can significantly reduce the probability that sensor node reports the sink nodes data collision like this.Aspect network security, the wireless sensor network that the utility model proposes is technical at Zigbee, and having adopted key length is 128 cryptographic algorithm, and the data message that is transmitted is carried out encryption.
Referring to Fig. 2, the hardware configuration of the wireless sensor node 3 of the wireless sensor network that the utility model provides is made up of Zigbee unit 33 (MC13192 and MC9S08 two parts are formed), hardware detection unit 31 and processor 32.Hardware detection unit 31, processor 32 and Zigbee unit 33 are connected successively; Zigbee unit 33 sends sink nodes 2 to after utilizing the control chip of self that information is handled wirelessly.The environment at hardware detection unit 31 detecting sensor nodes 3 places, when environment changes, the I/O that triggers Zigbee unit 33 interrupts sending information to Zigbee unit 33, the unit wakes up from sleep state, after the control chip of unit by using self is handled information, send sink nodes 2 more wirelessly to.
Referring to Fig. 3, being distributed in the data that sink nodes 2 in the sensor network are mainly used in receiving sensor node 3 reports, and it is carried out fusion treatment, pass to data transmission unit 21, give the central site network telegon by the internet network delivery, the hardware of the sink nodes 2 in the Zigbee wireless sensor network is made up of Zigbee unit 33,16 8-digit microcontrollers 22, data transmission unit 21 etc.Connection between Zigbee unit 33 and 16 8-digit microcontrollers 22 realizes by asynchronous serial port, communication speed between them is 38.4kBaud, a plurality of sink nodes 2 owing to distributing in the sensor network, therefore 16 8-digit microcontrollers 22 will utilize software interrupt to realize different I D sink nodes 2 are uploaded data polling scanning, spread out of after the data of sink nodes 2 can in order, intactly be handled by microcontroller.Data transmission unit 21 is the wireless communication units that meet IEEE802.15.4/Zigbee, the wireless transmission that this element is used for data with communicate by letter.Sink nodes 2 serve as in this sensor network is gateway between sensor node and the internet network.
Referring to Fig. 4, the central site network telegon is made up of monitoring unit 42, dispensing unit 41, Data Management Unit 43 these three parts.It links together indirectly by internet network and a plurality of sink nodes 2, monitoring unit 42 is by the real-time monitoring to communication serial port, realize to distributed sink nodes 2 reporting informations timely reception, parsing, handle and send control signaling to different sink nodes 2 realize to sensor node 3 indirectly, the supervisory control and data acquisition (SCADA) of real-time.
The wireless sensor network system software configuration that the utility model proposes is as described below: the Zigbee protocol stack is made up of a series of hierarchies, and each layer provides service for last layer.Data entity provides data transport service, and management entity provides other function service.Every kind of service entities provides interface by Service Access Point (SAP) for the upper strata.PHY layer and MAC layer are formulated by IEEE 802.15.4 standard group.Physical layer has defined the interface between physical radio channel and the media access control sublayer.Physical layer data service and physical layer management service are provided.Physical layer data service transceive data from the wireless channel.Physical management layer is safeguarded a database of being made up of the physical layer related data.The Zigbee agreement provides network layer and application support layer and application layer framework based on the 802.15.4 standard.The Zigbee network layer provides and adds and deviated from network mechanism, data are encrypted and function such as frame route.Routing Protocol is responsible for packet from source node by forwarded mainly finishing two functions: 1. seek the optimization path between source node and destination node to destination node; 2. packet is transmitted along optimizing the path.In order efficiently to utilize energy, reduce the traffic, the Zigbee network allows tree-like Route Selection, i.e. tree structure addressing.Tree-like Route Selection has been arranged, and equipment needn't be preserved the routing table of occupying huge internal memory or carry out extra aerial down operation and find the path, thereby has reduced network traffics.For the transition route of avoiding error message to surpass certain-length produces extra flow, the Zigbee route allows router to remove to find shortcut.Routing algorithm adopts AODV (Ad Hoe On demand distance veaor) algorithm.Each router is safeguarded a routing table, and regular and its neighbor router exchanging routing information, is upgraded the routing table of oneself by vector according to minimal path.Application layer framework definition monitoring network node agreement.Radio network gateway connects internal wireless network and outside wired ethernet, and gateway adopts microprocessor of 16 bit series to realize.On the basis of Zigbee protocol frame, set up the communication protocol of radio network gateway, comprise device numbering, data flow direction, data message etc.After start powers on. System self-test, hardware initialization and enters the data flow relay services after the long distance monitoring server is connected, the functions such as conversion of realization data protocol.After remote server is accepted to connect, receive the data of transmission at any time.And classification is saved in database server as required.
The utility model proposes a kind of water quality monitoring system based on this radio sensing network, this system is based on the Zigbee agreement, the layer-stepping system that is made up of a large amount of wireless sensor node 3, sink nodes 2 and data transmission unit 21.Has natural distributed treatment ability based on bunch hierarchy of (Cluster), bunch head be exactly the distributed treatment center be sink nodes 2 of the utility model wireless sensor network, each bunch member (sensor node 3) passes to a bunch head to data, directly passes to data transmission unit 21 after the data fusion.Realize wireless information exchange by the Zigbee technology between sink nodes 2 and the sensor node 3, the wireless sensor node 3 that has a radio-frequency (RF) transceiver is responsible for the perception and the processing of data and is sent sink nodes 2 to; Control centre obtains the relevant information that collects by the internet network, realizes effective control and management to the scene.
The implementation of water quality monitoring system:
1, water quality monitoring base station: the water quality monitoring base station mainly be responsible for to be gathered water sample and by various water quality monitoring instruments the various parameters of water sample is monitored, and comprises that pH value, DO, turbidity, water temperature, electricity are led, ammonia nitrogen, basic parameters such as TOC, COD.And these basic parameter data are carried out buffer memory.Upload to control centre's site server according to the certain hour setting by various communication modes.Can accept simultaneously the control of control centre's site server.With the communication modes of central server on adopt Ethernet as main communication channel, adopt GPRS or PSTN modem dialing as the spare communication passage, controller can adopt standby communication channel to upload data by dial mode in the time of can not uploading data in case main communication channel breaks down, and so just can guarantee that data can upload butterfly timely and accurately.In the communication of same parameter collecting device, Flex3500 has 5 RS232 serial ports and 2 RS485 serial ports, and the collection of water quality parameter is finished in the communication that has the I/O of multi-analog and digital quantity, user can dispose collecting device flexibly.
2, control centre's site server: control centre's site server is the higher PC server of configuration, wireless sensor network that the utility model proposed and water monitoring data process software have been installed, be responsible for uploading the storage and the analysis of data, and being provided with corresponding service, the client computer of other networking can be browsed the Monitoring Data and the operating state at each water quality monitoring station of monitoring.The software systems of control centre's site server can adopt configuration net or the exploitation of other configuration software.
The utility model has proposed the wireless senser water quality monitoring network system based on the Zigbee agreement on the basis of Zigbee wireless sensor network, and has carried out water quality parameter and detect the Collection and analysis test on wireless network platform.Experimental verification the feasibility of carrying out the long distance wireless water quality monitoring by this system.The water quality monitoring system that the utility model proposes comprises station system of control centre, the two large divisions of monitoring base station system.Central station system is made up of front-end computer, application software and is formed local area network (LAN) with N platform computer.Front-end computer sends instruction from central station by receiving from the data of base station system with to base station system.Base station system is communicated by letter with central station, and accepts the data-signal from the isomery water quality sensor.In native system, a central station system can be monitored several base station systems, thereby forms a huge automatic monitor network of water quality wireless computer.According to the wireless water quality monitoring network platform of zigbee of design, the water quality parameter under the various remote environments is carried out continuous acquisition, and on monitoring central server, show in real time.The Zigbee network is the wireless sensor network of low-power consumption, low cost, high reliability, and it has wide application prospect in wireless remote environment detects.
Claims (9)
1. wireless sensor network is characterized in that: this network comprises and is used for measurement environment parameter wireless sensor node and sink nodes; Described wireless sensor node is a plurality of, and described wireless sensor node is connected by wireless mode with sink nodes.
2. wireless sensor network according to claim 1 is characterized in that: described sink nodes are a plurality of, described sink nodes and wireless sensor node be one to one or the mode of one-to-many be connected.
3. wireless sensor network according to claim 1 is characterized in that: described wireless sensor node comprises Zigbee unit, hardware detection unit and processor, and described hardware detection unit, processor and Zigbee unit are connected successively; The environment at described hardware detection unit detecting sensor node place sends information to the Zigbee unit, after the control chip of described Zigbee unit by using self is handled information, sends sink nodes wirelessly to.
4. wireless sensor network according to claim 1 is characterized in that: described sink nodes comprise Zigbee unit, 16 8-digit microcontrollers and data storage cell; Connect by asynchronous serial port between described Zigbee unit and 16 8-digit microcontrollers; Described data storage cell is connected in 16 8-digit microcontrollers.
5. according to claim 1 or 2 or 3 or 4 described wireless sensor networks, it is characterized in that: this wireless sensor network also comprises the central site network telegon, and described central site network telegon is connected with sink nodes by wireless mode.
6. wireless sensor network according to claim 5, it is characterized in that: described central site network telegon comprises monitoring unit, dispensing unit and Data Management Unit, described dispensing unit, monitoring unit and Data Management Unit link to each other successively, and described monitoring unit is communicated by letter with sink nodes by communication serial port.
7. one kind requires the water quality monitoring system of 1 described wireless sensor network based on aforesaid right, and it is characterized in that: described water quality monitoring system comprises water quality monitoring base station and control centre's site server; Described water quality monitoring base station is uploaded to control centre's site server with Monitoring Data; Described control centre site server comprises wireless sensor network and water monitoring data processing unit, and described water quality monitoring base station is connected with the water monitoring data processing unit by wireless sensor network.
8. the water quality monitoring system based on the described wireless sensor network of claim 1 according to claim 7, it is characterized in that: described monitoring system is a hierarchy, sink nodes are connected with a plurality of sensor nodes respectively in the described wireless sensor network, described sensor node transmission data are given sink nodes, pass to data transmission unit after the data fusion.
9. the water quality monitoring system based on the described wireless sensor network of claim 1 according to claim 8 is characterized in that: the communication modes of described water quality monitoring base station and control centre's site server is Ethernet, GPRS or PSTN modem dialing.
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Cited By (9)
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| CN103675225A (en) * | 2013-12-02 | 2014-03-26 | 华东理工大学 | Portable water quality detection instrument and method |
| CN103792330A (en) * | 2014-01-25 | 2014-05-14 | 安徽理工大学 | Wireless sensing water quality monitoring and early warning system |
| CN104282126A (en) * | 2013-07-12 | 2015-01-14 | 高圣鑫 | Multi-parameter greenhouse environment monitoring system adopting multiple network communication technology |
| CN105320164A (en) * | 2015-06-30 | 2016-02-10 | 湖州师范学院 | Water body oxygen content dynamic constraint handling and layering control method |
| CN105761465A (en) * | 2014-12-18 | 2016-07-13 | 镇江坤泉电子科技有限公司 | Water quality environmental monitoring system based on wireless transducers |
| CN105915597A (en) * | 2016-04-12 | 2016-08-31 | 时建华 | Voltage monitoring system based on wireless sensor network |
| CN107525891A (en) * | 2017-08-22 | 2017-12-29 | 太仓市智联信息科技有限公司 | A kind of multi-faceted real-time monitoring system of outdoor environment |
| CN109195128A (en) * | 2018-08-24 | 2019-01-11 | 珠海市万顺睿通科技有限公司 | Utilize the water pollution monitoring method and system of radio detection terminal |
| CN112995943A (en) * | 2021-05-13 | 2021-06-18 | 深圳市速腾聚创科技有限公司 | Perception information fusion method of multiple sensors and related equipment |
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- 2009-12-08 CN CN2009202456615U patent/CN201623860U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104282126A (en) * | 2013-07-12 | 2015-01-14 | 高圣鑫 | Multi-parameter greenhouse environment monitoring system adopting multiple network communication technology |
| CN103675225A (en) * | 2013-12-02 | 2014-03-26 | 华东理工大学 | Portable water quality detection instrument and method |
| CN103792330A (en) * | 2014-01-25 | 2014-05-14 | 安徽理工大学 | Wireless sensing water quality monitoring and early warning system |
| CN105761465A (en) * | 2014-12-18 | 2016-07-13 | 镇江坤泉电子科技有限公司 | Water quality environmental monitoring system based on wireless transducers |
| CN105320164B (en) * | 2015-06-30 | 2018-02-27 | 湖州师范学院 | Oxygen content of water dynamic constrained handles hierarchical control method |
| CN105320164A (en) * | 2015-06-30 | 2016-02-10 | 湖州师范学院 | Water body oxygen content dynamic constraint handling and layering control method |
| CN105915597A (en) * | 2016-04-12 | 2016-08-31 | 时建华 | Voltage monitoring system based on wireless sensor network |
| CN107525891A (en) * | 2017-08-22 | 2017-12-29 | 太仓市智联信息科技有限公司 | A kind of multi-faceted real-time monitoring system of outdoor environment |
| CN109195128A (en) * | 2018-08-24 | 2019-01-11 | 珠海市万顺睿通科技有限公司 | Utilize the water pollution monitoring method and system of radio detection terminal |
| CN109195128B (en) * | 2018-08-24 | 2023-09-22 | 江西环保股份有限公司 | Water pollution monitoring method and system by using wireless detection terminal |
| CN112995943A (en) * | 2021-05-13 | 2021-06-18 | 深圳市速腾聚创科技有限公司 | Perception information fusion method of multiple sensors and related equipment |
| CN113965879A (en) * | 2021-05-13 | 2022-01-21 | 深圳市速腾聚创科技有限公司 | Perception information fusion method of multiple sensors and related equipment |
| US11533590B2 (en) | 2021-05-13 | 2022-12-20 | Suteng Innovation Technology Co., Ltd. | Method for converging sensed information of multiple sensors and device thereof |
| US11844003B2 (en) | 2021-05-13 | 2023-12-12 | Suteng Innovation Technology Co., Ltd. | Method for converging sensed information of multiple sensors and device thereof |
| CN113965879B (en) * | 2021-05-13 | 2024-02-06 | 深圳市速腾聚创科技有限公司 | Multi-sensor perception information fusion method and related equipment |
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