CN210570889U - Reservoir downstream distributed water level monitoring and early warning device - Google Patents
Reservoir downstream distributed water level monitoring and early warning device Download PDFInfo
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Abstract
The utility model relates to a reservoir low reaches distributing type water level monitoring early warning device, the device includes: a convergence gateway and an early warning node; the convergence gateway and the early warning node respectively comprise wireless multi-hop network signal transceiving chips, and the convergence gateway and the early warning node communicate based on the wireless multi-hop network; the early warning nodes are arranged at each water level monitoring point at the downstream of the reservoir, the early warning nodes further comprise sensors, the sensors acquire water level information of each monitoring point and send the water level information to the wireless multi-hop network signal transceiver chip, and the wireless multi-hop network signal transceiver chip sends the water level information to the next-hop early warning nodes or the convergence gateway; and the convergence gateway sends the water level information of each monitoring point acquired by each early warning node to the outside through a mobile network. Each early warning node and the convergence gateway are in communication based on a wireless multi-hop network, so that the early warning nodes and the convergence gateway can complete switching by increasing and decreasing modules, and distributed multipoint acquisition and alarming are facilitated.
Description
Technical Field
The utility model relates to a water level monitoring field, concretely relates to reservoir low reaches distributing type water level monitoring early warning device.
Background
The hydropower station has obvious comprehensive benefits of power generation, flood control, water supply and the like, but because some hydropower station reservoir management systems are not perfect, reservoir scheduling and flood control measures are not scientific, early warning facilities are incomplete, and great potential safety hazards still exist in the safe operation process of the hydropower station reservoir. Especially, hydropower stations or small-sized power stations in remote areas generally have the phenomena of non-early warning of water discharge in the non-flood season, non-timely early warning of flood season water prevention, traditional broadcasting adopted for early warning of dangerous cases in downstream riverways and the like.
Because the early warning information is not issued in time or the early warning mode is not intelligent, the lives and properties of the masses in the downstream area are greatly threatened. Although the water conservancy management department adopts various channels to release the early warning information, due to the reasons of incomplete facilities, single early warning mode, low intelligent degree and the like, the water conservation management department still has the problems that downstream masses are trapped and people drown caused by the fact that the upstream is opened and the water is discharged.
In the prior art, one monitoring device adopted for monitoring the downstream river water level of a plurality of reservoirs is an isolated monitoring point, as shown in fig. 1, a schematic structural diagram of a river water level monitoring device in the prior art is shown, as shown in fig. 2, a structural block diagram of a water level acquisition system constructed by a star-shaped network structure in the prior art is shown, as can be seen from fig. 1 and 2, the water level monitoring device in fig. 1 comprises: the sensor comprises a sensor, a data processing module, a power supply module, a GPRS communication module, an upper computer and the like, wherein the sensor generally adopts an ultrasonic sensor, a hydraulic sensor, an infrared sensor, a laser sensor, a buoy type sensor and the like. Data in the process of carrying out water level monitoring by the water level monitoring device are communicated in a one-way mode from a sensor of a collecting point to an upper computer. In the embodiment shown in fig. 2, all the terminal nodes of the system directly communicate with the coordinator, the communication range of the star network is a circle with the maximum communication distance as the radius and the communication distance is very limited in the topology structure, which is not suitable for the river channel with the linear structure. In summary, the prior art may have the following problems:
1. the number of water level monitoring points is small, the distribution and installation are easily limited by field conditions, multi-point acquisition as required cannot be realized, and the hardware structure is not easy to expand;
2. the number of alarm points is insufficient, the distribution is very easy to be limited by field installation conditions, alarm blind areas exist, the alarm mode depends on manual work, and the intelligent degree is low;
3. the working states of the water level monitoring points and the alarm points of the downstream riverway of the reservoir cannot be accurately monitored, the installation and networking modes are single, the flexible expansion cannot be realized, the system cannot adapt to the geographical environment of a changeable and complex riverway, and the operation and maintenance of the system have difficulty.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem who exists among the prior art, provide a reservoir low reaches distributing type water level monitoring early warning device.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a reservoir downstream distributed water level monitoring and early warning system is characterized by comprising a convergence gateway 1, early warning nodes 2 and a remote monitoring center server management system 3, wherein the convergence gateway 1 and the early warning nodes respectively comprise a wireless multi-hop network signal transceiver chip 22, and the convergence gateway 1 and the early warning nodes 2 are communicated based on a wireless multi-hop network;
the early warning node 2 is arranged at each water level monitoring point at the downstream of the reservoir, the early warning node further comprises a sensor 21, the sensor 21 collects water level information of each monitoring point and sends the water level information to a wireless multi-hop network signal transceiver chip 22, and the wireless multi-hop network signal transceiver chip 22 sends the water level information to the early warning node 2 of the next hop or the convergence gateway 1;
and the convergence gateway 1 sends the water level information of each monitoring point acquired by each early warning node 2 to a remote monitoring center server management system 3 through a mobile network.
The utility model has the advantages that: considering that the geographical environment of a river channel at the downstream of a reservoir is complex, some places are steep and multi-bent, some remote mobile internet signals in river sections are weak, some places have mountains which easily block wireless signal transmission, the width and the gradient of a riverbed are variable, and a lot of difficulties are brought to accurate water level acquisition. Each early warning node is based on wireless multi-hop network communication, so that the early warning nodes and the convergence gateway can complete switching by increasing and decreasing modules, and distributed multi-point acquisition and alarming are conveniently realized.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the chip model of the wireless multi-hop network signal transceiver chip 22 is CC 2530.
Further, the sensor 21 includes one or more of an ultrasonic sensor, a laser sensor, and a hydraulic sensor.
Further, the early warning node 2 further comprises an alarm module 23 connected with the wireless multi-hop network signal transceiver chip 22;
the alarm module 23 comprises a control circuit, an LED flashing light and a loudspeaker, wherein the control circuit generates an alarm instruction according to the water level information received by the wireless multi-hop network signal transceiver chip 22 to control whether the LED flashing light flashes and whether the loudspeaker gives an alarm.
Further, the aggregation gateway 1 and the early warning node 2 further include a power supply unit 24 respectively; the power supply unit 24 includes: the solar energy battery comprises a solar cell panel, a power management module, a lithium battery and a voltage stabilizing circuit;
the power management module is connected with the lithium battery, the alarm module 23, the solar cell panel and the voltage stabilizing circuit.
Further, the convergence gateway 1 and the early warning node 2 each include a signal processing module 25 connected to the wireless multi-hop network signal transceiver chip 22;
the signal processing module 25 sends the data sent by the wireless multi-hop network signal transceiver chip 22 to the outside through the mobile network.
Further, the model of the signal processing module 25 is ARM-11.
Further, a connection network between the convergence gateway 1 and the early warning node 2 is a sub-network segment chain line type multi-hop network structure;
the aggregation gateway 1 and at least two early warning nodes 2 arranged on two sides of the aggregation gateway 1 form a network segment, and the aggregation gateway 1 and each early warning node 2 in the network segment are connected in a chain line type.
The beneficial effect of adopting the further scheme is that: a wireless sensor network for multi-point water level acquisition is built by adopting a network-dividing segment chain type linear network structure, each node is used as a relay, the monitoring range can be effectively expanded, and the networking flexibility is enhanced.
Drawings
FIG. 1 is a block diagram of a water level collection system according to an embodiment of the prior art;
FIG. 2 is a block diagram of a water level acquisition system constructed by a star network structure in the prior art;
fig. 3 is a structural block diagram of a hardware circuit modular design of the reservoir downstream distributed water level monitoring and early warning device provided by the utility model;
fig. 4 is a block diagram of a hardware circuit modular design of a downstream distributed water level monitoring and early warning device for a reservoir according to the present invention;
fig. 5 is a block diagram of a system for a reservoir downstream distributed water level monitoring and early warning device according to the present invention;
fig. 6 is a schematic diagram of an embodiment of a segment chain line type multi-hop network structure provided by the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the system comprises a convergence gateway, 2, an early warning node, 21, a sensor, 22, a wireless multi-hop network signal transceiving chip, 23, an alarm module, 24, a power supply unit, 25, a signal processing module, 3, a remote monitoring center server management system, 4 and a monitoring client.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 3, the utility model provides a pair of the structure block diagram of the hardware circuit modular design of reservoir downstream distributed water level monitoring and early warning device, can know from fig. 3, the device includes: a convergence gateway 1 and an early warning node 2; the convergence gateway 1 and the early warning node respectively comprise a wireless multi-hop network signal transceiver chip 22, and the convergence gateway 1 and the early warning node 2 communicate based on a wireless multi-hop network.
The early warning node 2 is arranged at each water level monitoring point at the downstream of the reservoir and further comprises a sensor 21, the sensor 21 collects water level information of each monitoring point and sends the water level information to a wireless multi-hop network signal transceiver chip 22, and the wireless multi-hop network signal transceiver chip 22 sends parameters to the next-hop early warning node 2 or the convergence gateway 1.
The convergence gateway 1 sends the water level information of each monitoring point collected by each early warning node 2 to the outside through a mobile network.
In a wireless multi-hop network, any wireless device node can act as both an AP and a router, each node in the network can send and receive signals, and each node can communicate directly with one or more peer nodes.
The utility model provides a pair of reservoir low reaches distributing type water level monitoring early warning system, the geographical environment of considering reservoir low reaches river course is complicated, local precipitous many bends some, some river reach remote mobile internet signal is faint, some places have the massif to easily block wireless signal transmission, the width and the slope of riverbed are changeable, a lot of difficulties have been brought for accurate collection water level, the line type many hops network model that the adoption is applicable to river course geographical structure transmission characteristics builds wireless many hops network, realize being convenient for expand, the multiple spot collection mode of easy nimble network deployment, can accomplish the nimble and engineering network deployment of wireless sensor network according to geographical environment, carry out the collection of information such as multiple spot water level as required.
Each early warning node is based on wireless multi-hop network communication, so that the early warning nodes and the convergence gateway can complete switching by increasing and decreasing modules, and distributed multi-point acquisition and alarming are conveniently realized.
Example 1
The utility model provides an embodiment one does the utility model provides a pair of reservoir low reaches distributing type water level monitoring early warning device's embodiment, as shown in fig. 4 do the utility model provides a pair of reservoir low reaches distributing type water level monitoring early warning device's the structural diagram of the embodiment of hardware circuit modular design.
As can be seen from fig. 4, in the embodiment of the distributed water level monitoring and early warning device downstream of the reservoir, the embodiment of the early warning node 2 includes: the wireless multi-hop network monitoring system comprises a sensor 21, a wireless multi-hop network signal transceiving chip 22, an alarm module 23, a power supply unit 24 and a signal processing module 25.
The sensor 21 includes one or more of an ultrasonic sensor, a laser sensor, and a hydraulic sensor. Fig. 4 shows an embodiment in which the three sensors all include, collect water level information such as water level, temperature, and voltage at a monitoring point in real time, send the collected water level information to the next-hop early warning node 2 or the aggregation gateway 1 through the wireless multi-hop network signal transceiver chip 22, and finally forward the collected water level information to the aggregation gateway 1 through a multi-hop route.
The wireless multi-hop network signal transceiver chip 22 may adopt a CC2530 chip of the TI company, and based on the wireless radio frequency communication function and the Zigbee protocol of the CC2530 chip, a set of wireless multi-hop network composed of multi-terminal early warning nodes is constructed, and the water level information of the monitoring point collected by the local sensor 21 and the previous-hop early warning node 2 is received. The wireless multi-hop network signal transceiver chip 22 provides 6 standard interfaces to be respectively connected with the signal processing module 25, the power supply unit 24, the alarm module 23, the hydraulic sensor, the laser sensor and the ultrasonic sensor.
Preferably, the early warning node 2 may further include an alarm module 23, the alarm module 23 is selectively connected to realize a sound-light alarm function, and after receiving an alarm instruction, the LED flashing light and the horn are driven according to the instruction requirement to remind people nearby to evacuate.
The alarm module 23 is composed of a control circuit, an LED flashing light and a horn. The control circuit generates an alarm instruction according to the water level information received by the wireless multi-hop network signal transceiver chip 22, and controls whether the LED flashing light flashes and whether the horn gives an alarm. The alarm module 23 is connected to the wireless multi-hop network signal transceiver chip 22 and the power supply unit 24 through 2 standard interfaces, respectively.
Further, the power supply unit 24 provides a power supply for the whole early warning node 1. The power supply unit 24 is composed of a solar cell panel, a power management module, a lithium battery and a voltage stabilizing circuit. The solar cell panel is connected with the power supply manager, the power supply management module is connected with the lithium battery, the alarm module, the solar cell panel and the voltage stabilizing circuit, and the solar cell panel and the alarm module have the functions of processing electric energy obtained by the solar cell panel, managing charging and discharging of the battery, providing a 12V direct current voltage source for the alarm unit and providing a 5V voltage source for the voltage stabilizing circuit. The voltage stabilizing circuit is connected with the wireless multi-hop network signal transceiver chip 22, the signal processing module 25 and the power manager, and mainly has the function of providing a 3.3V direct-current voltage source for the wireless multi-hop network signal transceiver chip 22 and the signal processing module 25. From the external view, the power supply unit provides 3 standard interfaces to connect the wireless multi-hop network signal transceiver chip 22, the signal processing module 25 and the alarm module 23, respectively.
The signal processing module 25 mainly functions to transmit data transmitted from the wireless multi-hop network signal transceiver chip 22 to the remote monitoring center server management system 3 through the mobile network, and to transmit data and instructions from the remote monitoring center server management system 3 to the wireless multi-hop network signal transceiver chip 22. The ARM-11 is adopted as a core board for development, and comprises a signal processing circuit (with functions of gathering wireless sensor network data, unpacking data, recombining data packets and the like) and a GPRS module (communicated with a data center). From the external view, the signal processing module 25 provides 2 standard interfaces to connect the wireless multi-hop network signal transceiver chip 22 and the power supply unit 24, respectively.
The structures of the aggregation gateway 1 and the early warning node 2 may be the same or different. The convergence gateway 1 comprises a wireless multi-hop network signal transceiver chip 22, a power supply unit 24 and a signal processing module 25, and if the convergence gateway needs to have the functions of signal acquisition and alarm at the same time, the alarm module 23 and the external corresponding sensor 21 are selectively added. The convergence gateway 1 is a communication junction for connecting the wireless multi-hop network communication network and the remote monitoring center server management system 3, and has the functions of converging wireless multi-hop network communication network data, unpacking the data, recombining the data packet according to a 3G/4G protocol, communicating with the remote monitoring center server management system 3 and the like. The convergence gateway 1 is developed by adopting ARM-11 as a core board and is responsible for data transmission between the early warning node 2 and the remote monitoring center server management system 3 in the whole system, and interconnection between a wireless multi-hop network and a mobile internet is realized.
The hardware circuits of different types of nodes of the wireless multi-hop network are designed in a modularized and unified manner, each module is connected with other modules through well-defined interfaces, the switching between the early warning nodes and the convergence gateway is realized by increasing and decreasing the modules, and a foundation is laid for the distribution and networking of multi-point water level acquisition.
A wireless sensor network for multi-point water level acquisition is built by adopting a network-dividing segment chain type linear network structure, each node is used as a relay, the monitoring range can be effectively expanded, and the networking flexibility is enhanced.
Example 2
The utility model provides an embodiment 2 does the utility model provides a pair of embodiment of system that reservoir low reaches distributing type water level monitoring early warning device used, as shown in fig. 5 does the utility model provides a pair of system's that reservoir low reaches distributing type water level monitoring early warning device used structural block diagram.
The system comprises: the system comprises a convergence gateway 1, an early warning node 2, a remote monitoring center server management system 3 and a monitoring client 4.
In a wireless sensor network, a signal transmission process is easily affected by factors such as terrain and vegetation, and reflection, scattering, absorption and the like occur, so that signal attenuation is caused. In the face of a complex application environment of a reservoir downstream watershed, the distributed water level monitoring and early warning system adopts a sub-network segment chain type linear multi-hop network structure to realize information transmission in a wireless sensor network, and a convergence gateway 1 is deployed at a key position to establish the linear wireless sensor network with different node numbers in a sub-network segment.
And the information is transmitted from the source node of each network segment through the next adjacent hop node step by step until the information is sent to the convergence gateway 1. The more nodes that are closer to the convergence gateway 1 need to forward the larger amount of data, the more energy is consumed. In order to meet the requirement of low-energy-consumption operation of a wireless sensor network, a segmented chain type topological structure is adopted in the online multi-hop network, the node attribution area is divided into network segments according to the position of a convergence gateway, and the problem of unbalanced information quantity of the linear network is solved. Meanwhile, in order to avoid unreliable transmission caused by too large data volume, the early warning node 2 does not perform data fusion; meanwhile, the time jitter resistance and the fault tolerance are enhanced through a power adjustment mechanism and an ACK and retransmission mechanism, and the reliability of data forwarding is ensured.
Fig. 6 is a schematic diagram of an embodiment of the present invention, wherein the aggregation gateways 1 and the number of the nodes in the network segment chain line type multi-hop network structure are not unique. The wireless sensor network in the schematic diagram is divided into 2 network segments, the node 4 in the network segment I and the node 5 in the network segment II are aggregation gateways 1 of the network segment I and the network segment II respectively, and the number of the aggregation gateways 1 and the number of the early warning nodes 2 are determined according to specific environments. The aggregation gateway 1 is responsible for managing monitoring areas of network segments to which the left side and the right side of the aggregation gateway belong, information collected by nodes in the network segments is transmitted from far to near, and the early warning node 2 closest to the aggregation gateway 1 forwards data of the early warning nodes 2 to the aggregation gateway 1. The external module is selectively connected through the interface, the function of each early warning node 2 in the wireless sensor network can be customized, for example, effective water level collection can be realized by selecting and connecting a proper sensor, and the warning point of each network segment can be selected by selecting and connecting the warning module 23. In addition, the wireless sensor network has the characteristics of ad hoc network, each early warning node 2 is a relay node in a data transmission link, the wireless sensor network can effectively increase the monitoring area in a relay mode, and the problem of limited monitoring distance in the existing scheme is solved. In addition, each node monitors own data, and if the data is abnormal, the data is immediately forwarded to the next hop node so as to ensure that an information transmission link is not influenced.
Specifically, in order to plan the information transmission path quickly and accurately, each early warning node 2 maintains a neighbor list of one adjacent hop, and each node has a specific address coding format for identification and positioning. In the embodiment provided by the utility model, the node address is represented by a 15-bit binary number, and the node address comprises three parts, namely a network segment position, a node address and a node type mark. The network segment position is expressed by 6-bit binary code, and the network can be expanded into 64 relatively independent linear multi-hop subnets (network segments); the node address is represented by 6-bit binary codes, each network segment can hold no more than 128 early warning nodes, and the network segment position and the node address can represent the position of a monitoring point. The node type flag bit is represented by a 3-bit binary code "× × ×", and the first flag bit represents whether the data acquisition function is available: "0 xxx" indicates that the node cannot collect the water level, and "1 xxx" indicates that the node can collect the water level; the second flag bit represents whether the alarm function is available: "x 0 x" indicates that the node cannot alarm, and "x 1 x" indicates that the node can alarm; the third bit flag bit represents the node type: "xx 0" represents an early warning node, and "xx 1" represents a convergence gateway.
Preferably, in order to solve the problems of network instability and time delay in the deep multi-hop mode, the early warning node 2 adopts a non-uniform deployment mode, so that the closer the node to the convergence gateway 1, the higher the density, the shorter the transmission distance, the smaller the energy consumption, and the energy consumption balance is realized. Meanwhile, high-density coverage is realized in a region with complex terrain, so that the nodes are positioned under various routes, and reliable transmission of data is ensured.
The initialization of the network is initiated by the convergence gateway 1, the convergence gateway 1 firstly sends a synchronizing signal to the monitoring center, and simultaneously broadcasts an initialization command containing a sequence number of the convergence gateway 1, so that the transmission power can be adjusted to control the coverage area. Each node receives the response signals of other nodes, registers neighbor information, and sorts the neighbor list according to the Received Signal Strength Indication (RSSI). The convergence gateway 1 receives the response signals of the early warning nodes 2 respectively, confirms the nearest nodes in sequence according to the RSSI value, and requires to upload the ordered neighbor list, and if the neighbor list has no overlapped neighbor nodes except the convergence gateway 1, the corresponding early warning nodes 2 are respectively arranged at the left side and the right side of the convergence gateway 1. The convergence gateway 1 establishes an address table and sends a numbering command containing synchronization time, Sink number, network segment position, node address and a special mark to the early warning node 2. And then continuously broadcasting by the corresponding node, analyzing the answer signal, updating the neighbor node table according to the number, determining the nearest node according to the RSSI value, and sending a numbering command containing the synchronization time, the Sink number, the network segment position, the node address and a special mark, and repeating the steps until all the nodes finish registration, time synchronization and node address labeling. In addition, the multi-hop wireless sensor network of line type has the characteristics that the route is single, the route is jumped more, the utility model discloses an embodiment is through chain double slot control strategy, makes the receive time of node and send time carry out staggered arrangement and reaches the purpose of energy saving.
In the specific working process, the early warning node 2 has the functions of water level acquisition, signal forwarding (ZigBee), sound and light alarm and the like. The process is as follows: after the wireless multi-hop network signal transceiver chip 22 receives the water level information transmitted by the interface or the water level information forwarded by the previous hop node during uplink, the water level information is transmitted to the next hop node through a micro-grid communication circuit (ZigBee protocol); during downlink, if the wireless multi-hop network signal transceiver chip 22 receives an alarm command, the alarm command is notified to the alarm module 23 through an interface or forwarded to the next-hop node according to a planned route through a micro-grid communication circuit (ZigBee protocol).
The convergence gateway 1 is responsible for convergence and forwarding of signals of all nodes in the network segment, and can also optionally have functions of water level acquisition, sound and light alarm and the like. The process is as follows: during uplink, after receiving water level acquisition information transmitted by an interface or water level information forwarded by a preorder node, the wireless multi-hop network signal transceiver chip 22 transmits the water level information to the signal processing module 25 through the interface, and the signal processing module 25 unpacks the gathered data and transmits the information to the remote monitoring center server management system 3 through GPRS according to a data format of a 3G/4G protocol; during downlink, the remote monitoring center server management system 3 sends an alarm instruction of a network segment node to the convergence gateway, the signal processing module 25 transmits the alarm instruction to the wireless multi-hop network signal transceiver chip 22 through an interface, and the wireless multi-hop network signal transceiver chip 22 forwards the alarm instruction to a next-hop node according to a target node address.
The remote monitoring center server management system 3 is responsible for processing and storing the collected data of the early warning node 1 forwarded by the convergence gateway 1. And the remote monitoring center server management system 3 stores the monitoring data into a database according to the address of the early warning node 1 and starts real-time monitoring and analysis of various abnormal data. The remote monitoring center server management system 3 provides data query functions in various forms such as graphs, live-action graphs and lists. Through the abnormal point detection algorithm, the working states of all the nodes can be monitored. Meanwhile, the remote monitoring center server management system 3 can provide an interface to access a monitoring platform matched with a regimen management department and can also access a self-developed monitoring program.
According to the view of fig. 5, the utility model provides an in the embodiment of a reservoir downstream distributed water level monitoring and early warning system, can also include: the client 4 is monitored. The monitoring client 4 may be an application program of a master console of a management department, or an APP application on a mobile terminal of a manager. Through the client application program, a user can not only know water level information and node early warning states of a downstream basin of the reservoir in real time, but also can query historical data of all nodes in a multi-mode.
Example 3
The utility model provides an embodiment 2 does the utility model provides a pair of based on reservoir low reaches distributed water level monitoring early warning device uses the embodiment of the early warning method of system. An embodiment of the early warning method is based on the utility model provides a pair of reservoir low reaches distributed water level monitoring early warning system. The utility model provides a pair of reservoir low reaches distributing type water level monitoring early warning system is based on wireless sensor network node's address location and multiple spot water level real-time supervision data, through the law analysis, can predict the rising trend of water level that has the alarming function node, realizes the early warning forecast that can quantify.
Parameters such as water level, temperature, voltage and the like of each node can be monitored and positioned in real time based on the sub-network segment chain type multi-hop wireless sensor network, and the type of each node can be marked and judged through node address coding. And early warning and forecasting are carried out through the water level data and the historical data of each point monitored in real time, so that quantitative early warning and forecasting are realized. Specifically, the following are:
the monitored river reach is divided into N network segments through N convergence gateways, and the early warning node 2 and the convergence gateway 1 of each network segment sequentially perform address coding according to the direction from the upstream to the downstream of river water.
And using the water level rising speed of each early warning node 2 as a basis for judging whether the water head reaches the early warning node 2. If it is not
When it is time, it indicates that the head has reached node i, where HiWater level, M, measured for node iiIs a threshold value of the rising speed of the water level of node I, delta HiAnd the water level variation measured for the node i, and the delta t is the time variation.
Suppose section i +1The point is an alarm node. Firstly, the water level rising speed of the preorder node is monitored, and if the water level rising speed of the i-1 number early warning node (2) meets the requirement
The early warning node (2) indicates that the water head reaches the number i-1, and the system records the time Ti-1, actual measurement(ii) a If the water level rising speed of the I-shaped early warning node (2) meets the requirement
The early warning node (2) indicates that the water head reaches the number i, and the system records the time Ti, actual measurement。
Therefore, the speed of the water outlet head at the early warning node (2) I can be estimated:
wherein L isi-1,iThe distance between the early warning node I-1 (2) and the early warning node I (2).
According to the speed of the water head at the early warning node (2) I, estimating the time of the water head reaching the alarm node I + 1:
wherein L isi,i+1Is the distance between node i and node i +1, DjThe difference value between the estimated time of the water head arrival and the measured time of the last alarm node (2), namely Dj＝Tj, actual measurement-Tj, pre-estimate。
And setting an early warning level according to the defined early warning time lead to achieve a plurality of times of warning modes in different levels. The following table 1 shows a corresponding table of the alarm level, the judgment condition and the description of the i-node multi-frequency and level alarm provided by the embodiment of the present invention.
TABLE 1I NODE MULTI-FREQUENCY, CLASSIFIED ALARM
The alarm state (voltage, temperature, power and other parameters) of the No. i early warning point is fed back to the data center through the wireless sensor network and the convergence gateway, and a user can check the alarm state in real time through the client.
The system has the functions of automatic monitoring, automatic early warning, signal forwarding and data analysis, can realize reliable, timely and controllable information transmission, and can flexibly realize the acquisition and monitoring of multi-point water level data; meanwhile, according to the result of multipoint water level acquisition, the water level change of the subsequent monitoring nodes is predicted by analyzing the water level change condition of the preorder monitoring points, so that a quantifiable automatic early warning function is realized.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The utility model provides a reservoir downstream distributed water level monitoring early warning device which characterized in that, the device includes: the system comprises a convergence gateway (1) and an early warning node (2); the convergence gateway (1) and the early warning node respectively comprise a wireless multi-hop network signal transceiver chip (22), and the convergence gateway (1) and the early warning node (2) are communicated based on a wireless multi-hop network;
the early warning nodes (2) are arranged at each water level monitoring point at the downstream of the reservoir, the early warning nodes further comprise sensors (21), the sensors (21) collect water level information of each monitoring point and send the water level information to a wireless multi-hop network signal transceiver chip (22), and the wireless multi-hop network signal transceiver chip (22) sends the water level information to the early warning node (2) of the next hop or the convergence gateway (1);
and the convergence gateway (1) sends the water level information of each monitoring point acquired by each early warning node (2) to the outside through a mobile network.
2. An apparatus according to claim 1, wherein the wireless multi-hop network signal transceiver chip (22) has a chip model number CC 2530.
3. A device according to claim 1, characterized in that the sensor (21) comprises one or more of an ultrasonic sensor, a laser sensor and a hydraulic sensor.
4. The device according to claim 1, characterized in that the early warning node (2) further comprises an alarm module (23) connected with the wireless multi-hop network signal transceiver chip (22);
alarm module (23) including control circuit, LED explode flashing light and loudspeaker, control circuit is according to water level information generation alarm command that wireless many hops network signal transceiver chip (22) received controls whether LED explodes flashing light and whether loudspeaker send the police dispatch newspaper.
5. An arrangement according to claim 4, characterized in that the convergence gateway (1) and the early warning node (2) further comprise a power supply unit (24), respectively; the power supply unit (24) includes: the solar energy battery comprises a solar cell panel, a power management module, a lithium battery and a voltage stabilizing circuit;
the power management module is connected with the lithium battery, the alarm module (23), the solar cell panel and the voltage stabilizing circuit.
6. The device according to claim 1, wherein the convergence gateway (1) and the early warning node (2) each comprise a signal processing module (25) connected to the wireless multi-hop network signal transceiver chip (22);
and the signal processing module (25) transmits the data transmitted by the wireless multi-hop network signal transceiver chip (22) to the outside through a mobile network.
7. An arrangement according to claim 6, characterized in that the signal processing module (25) is of the type ARM-11.
8. An arrangement according to claim 1, characterized in that the connection network between the aggregation gateway (1) and the early warning node (2) is a sub-network segment chain line type multi-hop network structure;
the convergence gateway (1) and at least two early warning nodes (2) arranged on two sides of the convergence gateway (1) form a network segment, and the convergence gateway (1) and the early warning nodes (2) in the network segment are connected in a chain line type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111629382A (en) * | 2020-06-12 | 2020-09-04 | 国网上海市电力公司 | Wireless local area network system for underground power station |
| RU2784822C1 (en) * | 2022-02-01 | 2022-11-29 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тульский государственный университет" (ТулГУ) | Device for monitoring the water level in open reservoirs |
| CN115938075A (en) * | 2022-11-03 | 2023-04-07 | 深圳市赛柏特通信技术有限公司 | Intelligent alarm control system with mobile phone communication function |
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2019
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111629382A (en) * | 2020-06-12 | 2020-09-04 | 国网上海市电力公司 | Wireless local area network system for underground power station |
| CN111629382B (en) * | 2020-06-12 | 2023-08-25 | 国网上海市电力公司 | Wireless local area network system for underground power station |
| RU2784822C1 (en) * | 2022-02-01 | 2022-11-29 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тульский государственный университет" (ТулГУ) | Device for monitoring the water level in open reservoirs |
| CN115938075A (en) * | 2022-11-03 | 2023-04-07 | 深圳市赛柏特通信技术有限公司 | Intelligent alarm control system with mobile phone communication function |
| CN115938075B (en) * | 2022-11-03 | 2024-05-03 | 深圳市南和移动通信科技股份有限公司 | Intelligent alarm control system with mobile phone communication function |
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