阅读说明：本技术 一种基于无线传感器的传输下水道管道数据的系统 (System for transmitting sewer pipeline data based on wireless sensor ) 是由 汤铁卉 钟锋 于 2019-09-24 设计创作，主要内容包括：本发明公开一种基于无线传感器的传输下水道管道数据的系统,所述无线传感器系统包括输送管道、设置在下水管道上的多个无线传感器节点和汇聚节点,所述无线传感器节点包括传感器模块、处理器模块、电源管理模块,所述无线传感器节点的传感器模块集成有温度传感器的通讯接口、湿度传感器的通讯接口、分布式光纤传感器的通讯接口、测力应变计的通讯接口、压力传感器的通讯接口、流量传感器的通讯接口、超声波传感器的通讯接口。本发明实施例通过对管道水质监测提供相应的监控手段,实现自动化采集,方便终端监控用户实现数据采集和故障排除等。(The invention discloses a sewer pipeline data transmission system based on a wireless sensor, which comprises a conveying pipeline, a plurality of wireless sensor nodes and a sink node, wherein the wireless sensor nodes and the sink node are arranged on the sewer pipeline, each wireless sensor node comprises a sensor module, a processor module and a power supply management module, and the sensor modules of the wireless sensor nodes are integrated with a communication interface of a temperature sensor, a communication interface of a humidity sensor, a communication interface of a distributed optical fiber sensor, a communication interface of a force measuring strain gauge, a communication interface of a pressure sensor, a communication interface of a flow sensor and a communication interface of an ultrasonic sensor. The embodiment of the invention provides a corresponding monitoring means for monitoring the water quality of the pipeline, realizes automatic acquisition, and is convenient for a terminal monitoring user to realize data acquisition, fault removal and the like.)

1. The utility model provides a system for transmission sewer pipeline data based on wireless sensor, a serial communication port, wireless sensor system includes pipeline, a plurality of wireless sensor nodes and the convergent node of setting on the sewer pipeline, wireless sensor node includes sensor module, processor module, power management module, wireless sensor node's sensor module integration has temperature sensor's communication interface, humidity transducer's communication interface, distributed optical fiber sensor's communication interface, dynamometry strain gauge's communication interface, pressure sensor's communication interface, flow sensor's communication interface, wherein: the processor module of the wireless sensor node consists of a micro-processing unit and a wireless communication unit, information acquired by the wireless sensor node is processed by the micro-processing unit and then is sent by the wireless communication unit, an additional cavity for installing the wireless sensor node is arranged on the conveying pipeline, the additional cavity provides a necessary mechanical protection and installation platform for the wireless sensor node, and the wireless sensor node is installed in the additional cavity on the conveying pipeline; the sink node and the sensor nodes form a wireless sensor network for collecting and transmitting sewer pipeline data in a self-organizing manner, the sensor nodes transmit the collected sewer pipeline data to the communication equipment, and the communication equipment transmits the received sewer pipeline data to the remote monitoring center for centralized processing and stores and displays the sewer pipeline data to the monitoring terminal; the wireless sensor node is connected with a temperature sensor, a humidity sensor, a distributed optical fiber sensor, a force and strain gauge, a pressure sensor and a flow sensor based on a sensor module.

2. The wireless sensor-based system for transmitting sewer pipe data of claim 1, wherein wireless of said plurality of wireless sensor nodesThe distance between the sensor node and the sink node does not exceed a preset lower distance limit S_minWhen the data is transmitted to the sink node, the wireless sensor nodes in the plurality of wireless sensor nodes directly transmit the acquired sewer pipeline data to the sink node; the distance between the wireless sensor nodes of the plurality of wireless sensor nodes and the sink node exceeds a preset lower distance limit S_minAnd when the wireless sensor nodes in the plurality of wireless sensor nodes transmit the acquired sewer pipeline data to the sink node in a multi-hop mode.

3. The wireless-sensor-based system for transmitting sewer pipe data according to claim 2, wherein the wireless sensor nodes in the plurality of wireless sensor nodes acquire neighbor node identifiers and position information by exchanging information, two adjacent wireless sensor nodes on the unified pipe line are set as neighbor nodes, and the sewer pipe data is transmitted between the two adjacent wireless sensors in a multi-hop manner.

4. The wireless sensor-based system for transmitting sewer pipe data of claim 3, wherein a total number of hops transmitted from a source node to the sink node, x, of the plurality of wireless sensor nodes is:

wherein S is_i,oIs the distance from the source node i to the sink node, S_a，oThe distance from the a-th sensor node to the sink node in the network, H is the number of the sensor nodes in the network,for the rounding function, represent pairsInteger taking is carried out.

5. The wireless sensor-based system for transmitting sewer pipe data according to claim 4, wherein the source node generates a transmission data packet after acquiring sewer pipe data, the transmission data packet includes an identification of the source node, sewer pipe data and a hop counter, an initial value of the hop counter is a total number of hops for transmission determined by the source node, the sewer pipe data includes data acquired by the sensor module; the source node selects a neighbor node from neighbor nodes of the source node as a destination node and sends the transmission data packet to the destination node; after receiving the transmission data packet, the destination node updates the transmission data packet, subtracts one from the value of a hop counter in the transmission data packet, and writes the sewer pipeline data collected by the destination node into the transmission data packet; taking the destination node as a source node of the next hop until the value of a hop counter in the data packet received by the destination node is 1; and after the destination node with the value of 1 of the hop counter in the received data packet writes the sewer pipeline data acquired by the destination node into the transmission data packet, the whole transmission data packet is sent to the sink node.

6. The wireless sensor-based system for transmitting sewer pipe data according to any of claims 1 to 5, wherein said flow sensor comprises a wireless passive flow sensor comprising a sensing unit, a power management module and a communication module, wherein: the sensitive unit is used for sensing fluid in a sewer pipeline, generating a corresponding voltage signal and sending the voltage signal to the power management module and the communication module; the power supply management module carries out rectification filtering processing on the voltage signal and generates an enabling signal based on the voltage signal to provide power supply for the communication module; the communication module converts the voltage signal into a pulse signal through an analog-to-digital conversion circuit under the power supply generated by the power supply management module, modulates the pulse signal into a sinusoidal signal generated by an oscillation circuit, and sends the voltage signal carrying flow information to the sensor module of the wireless sensor node through an amplification circuit.

Technical Field

The invention relates to the technical field of smart cities, in particular to a system for transmitting sewer pipeline data based on a wireless sensor.

Background

Pipeline transportation is an important mode of liquid transportation, and in the laying of pipeline network, the demands of gathering and collecting various data can exist, and the pipeline monitoring system is relatively lagged behind due to the problem of layout lines in the existing transmission pipeline, and most of the existing transmission pipeline stays on the basis of manual patrol. The existing monitoring system has the problems of poor system stability, low sensitivity, easiness in false report and missing report, incapability of accurately positioning fault points, low informatization degree and the like.

Disclosure of Invention

The invention aims to solve the technical problem that a system for transmitting sewer pipeline data based on a wireless sensor is provided for monitoring various data in a water supply and drainage pipeline, automatic acquisition is realized by providing a corresponding monitoring means for pipeline water quality monitoring, and a terminal monitoring user can conveniently realize data acquisition, fault removal and the like.

The invention provides a sewer pipeline data transmission system based on a wireless sensor, which comprises a conveying pipeline, a plurality of wireless sensor nodes and a sink node, wherein the wireless sensor nodes are arranged on the sewer pipeline and comprise a sensor module, a processor module and a power management module, the sensor module of each wireless sensor node is integrated with a communication interface of a temperature sensor, a communication interface of a humidity sensor, a communication interface of a distributed optical fiber sensor, a communication interface of a force measuring strain gauge, a communication interface of a pressure sensor and a communication interface of a flow sensor, and the wireless sensor system comprises: the processor module of the wireless sensor node consists of a micro-processing unit and a wireless communication unit, information acquired by the wireless sensor node is processed by the micro-processing unit and then is sent by the wireless communication unit, an additional cavity for installing the wireless sensor node is arranged on the conveying pipeline, the additional cavity provides a necessary mechanical protection and installation platform for the wireless sensor node, and the wireless sensor node is installed in the additional cavity on the conveying pipeline; the sink node and the sensor nodes form a wireless sensor network for collecting and transmitting sewer pipeline data in a self-organizing manner, the sensor nodes transmit the collected sewer pipeline data to the communication equipment, and the communication equipment transmits the received sewer pipeline data to the remote monitoring center for centralized processing and stores and displays the sewer pipeline data to the monitoring terminal; the wireless sensor node is connected with a temperature sensor, a humidity sensor, a distributed optical fiber sensor, a force and strain gauge, a pressure sensor and a flow sensor based on a sensor module.

The distance between a wireless sensor node in the plurality of wireless sensor nodes and the sink node does not exceed a preset lower distance limit S_minWhen the data is transmitted to the sink node, the wireless sensor nodes in the plurality of wireless sensor nodes directly transmit the acquired sewer pipeline data to the sink node; the distance between the wireless sensor nodes of the plurality of wireless sensor nodes and the sink node exceeds a preset lower distance limit S_minAnd when the wireless sensor nodes in the plurality of wireless sensor nodes transmit the acquired sewer pipeline data to the sink node in a multi-hop mode.

The wireless sensor nodes in the wireless sensor nodes acquire neighbor node identification and position information through information exchange, two adjacent wireless sensor nodes on the unified pipeline are arranged to be neighbor nodes, and the sewer pipeline data are transmitted between the two adjacent wireless sensors in a multi-hop supporting mode.

A total number of transmission hops from a source node to the sink node in the plurality of wireless sensor nodes, x:

wherein S is_i,oIs the distance from the source node i to the sink node, S_a，oThe distance from the a-th sensor node to the sink node in the network, H is the number of the sensor nodes in the network,for the rounding function, represent pairsInteger taking is carried out.

After acquiring sewer pipeline data, the source node generates a transmission data packet, wherein the transmission data packet comprises an identifier of the source node, sewer pipeline data and a hop counter, an initial value of the hop counter is a total transmission hop determined by the source node, and the sewer pipeline data comprises data acquired by a sensor module; the source node selects a neighbor node from neighbor nodes of the source node as a destination node and sends the transmission data packet to the destination node; after receiving the transmission data packet, the destination node updates the transmission data packet, subtracts one from the value of a hop counter in the transmission data packet, and writes the sewer pipeline data collected by the destination node into the transmission data packet; taking the destination node as a source node of the next hop until the value of a hop counter in the data packet received by the destination node is 1; and after the destination node with the value of 1 of the hop counter in the received data packet writes the sewer pipeline data acquired by the destination node into the transmission data packet, the whole transmission data packet is sent to the sink node.

The flow sensor comprises a wireless passive flow sensor and a sensitive unit, a power management module and a communication module, wherein: the sensitive unit is used for sensing fluid in a sewer pipeline, generating a corresponding voltage signal and sending the voltage signal to the power management module and the communication module; the power supply management module carries out rectification filtering processing on the voltage signal and generates an enabling signal based on the voltage signal to provide power supply for the communication module; the communication module converts the voltage signal into a pulse signal through an analog-to-digital conversion circuit under the power supply generated by the power supply management module, modulates the pulse signal into a sinusoidal signal generated by an oscillation circuit, and sends the voltage signal carrying flow information to the sensor module of the wireless sensor node through an amplification circuit.

In summary, the sensor module provided by the embodiment of the invention integrates various sensors to monitor the health condition of the transmission pipeline, and the sensor node collects receipts through the wireless sensor, thereby realizing wireless transmission of signal data and realizing efficient monitoring of multiple data quantities of the transmission pipeline. Install wireless sensor node on every section pipeline line, a plurality of wireless sensor node and convergent node communication form a one-to-many formula information transfer node based on wireless communication, but the circuit condition of real-time detection multistage pipeline, because be provided with a plurality of wireless sensor again on every section pipeline, can carry out the multiple spot and detect. The pipeline data monitoring system has the advantages of simple structure, good real-time performance and the like, is low in cost, convenient and practical, can realize remote real-time monitoring of pipeline data, can send out alarm signals, and can effectively reduce negative effects brought by pipeline loss.

The embodiment of the invention combines the wireless sensor nodes distributed by the pipeline circuit, can realize a routing mechanism for transmitting the collected sewer pipeline data to the sink node in a multi-hop mode, determines the total transmission hop count for transmitting the sewer pipeline data according to the distance from the source node to the sink node, and determines the target node of the next hop in a defined neighbor node mode on the pipeline circuit. Carry out the transmission of jumping of sewer pipeline data through this routing mechanism, it is simple convenient, because what realize on the pipeline circuit is based on the circuit layout characteristic, neighbor node and pipeline circuit coincidence on the pipeline circuit that it realized have ensured that only close to the wireless sensor node of node transmits as the destination node, and its whole transmission course's route has clear and definite directionality, has guaranteed the controllability of circuit route transmission.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a system for transmitting sewer pipe data based on a wireless sensor according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a wireless sensor node in an embodiment of the invention;

fig. 3 is a schematic structural diagram of a flow sensor in an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 shows a schematic structural diagram of a system for transmitting sewer pipeline data based on a wireless sensor in an embodiment of the present invention, and fig. 2 shows a schematic structural diagram of a wireless sensor node in an embodiment of the present invention, where the wireless sensor system includes a transmission pipeline, a plurality of wireless sensor nodes and a sink node, the wireless sensor nodes include a sensor module, a processor module, and a power management module, and the sensor module of the wireless sensor node integrates a communication interface of a temperature sensor, a communication interface of a humidity sensor, a communication interface of a distributed optical fiber sensor, a communication interface of a force measuring strain gauge, a communication interface of a pressure sensor, and a communication interface of a flow sensor, where: the processor module of the wireless sensor node consists of a micro-processing unit and a wireless communication unit, information acquired by the wireless sensor node is processed by the micro-processing unit and then is sent by the wireless communication unit, a power management module in the wireless sensor node supplies power in a wired access mode, a plurality of wireless sensor nodes can be uniformly supplied with power by the same power input line, an additional cavity for installing the wireless sensor node is arranged on the conveying pipeline, the additional cavity provides a necessary mechanical protection and installation platform for the wireless sensor node, and the wireless sensor node is installed in the additional cavity on the conveying pipeline; the sink node and the sensor nodes form a wireless sensor network for collecting and transmitting sewer pipeline data in a self-organizing manner, the sensor nodes transmit the collected sewer pipeline data to the communication equipment, and the communication equipment transmits the received sewer pipeline data to the remote monitoring center for centralized processing and stores and displays the sewer pipeline data to the monitoring terminal; the wireless sensor node is connected with a temperature sensor, a humidity sensor, a distributed optical fiber sensor, a force and strain gauge, a pressure sensor and a flow sensor based on a sensor module. Namely, the sensor module of the embodiment of the invention can acquire temperature parameters, humidity parameters, pressure parameters, force-measuring strain parameters, optical fiber parameters, flow parameters and the like, which belong to sewer pipeline data.

The sensor module acquires sensor data of a sensor connected to the communication interface by adopting the interrupt mechanism priority of the microcontroller; or the sensor module responds to each communication interface in a polling mode to acquire sensor data sent to the sensor module by different sensors. When a plurality of communication interfaces on the sensor module simultaneously have data requests, the interrupt mechanism of the MCU judges the priority of the interrupt request and preferentially responds to the interrupt request with high priority. When a plurality of communication interfaces have data requests at the same time, each communication interface can be responded in a polling mode, namely the addresses of the communication interfaces respond from small to large, and finally the data of each sensor is sent to the processor module.