CN205405824U - Detection alarm system of leaking based on wireless network - Google Patents

Abstract

The utility model discloses a water leakage detection and alarm system based on a wireless network, which comprises a flow meter, a wireless communication node and an intelligent detection alarm. The meter and the wireless communication node transmit the water flow signal in the water pipe to the intelligent detection alarm through wireless signals; The water flow signal of the intelligent detection alarm communicates with the user's mobile terminal through the wireless communication module. When the utility model works, the intelligent detection alarm collects, analyzes and stores the water flow signals from each flow meter and wireless communication node, and the information processing module judges in real time whether there is water leakage by comparing the flow changes of each flow meter under normal conditions Situation happens.

Description

Water leakage detection and alarm system based on wireless network

technical field

The utility model belongs to the technical field of pipeline water leakage monitoring, in particular to a water leakage detection and alarm system based on a wireless network.

Background technique

Due to economic development and population increase, my country's water consumption is also increasing. my country's per capita water resources are 2,173 cubic meters, which is only 1/4 of the world's average per capita. It is a country short of water. Therefore, if we can find water leakage in the water pipe system in time and deal with it in our daily life, it will be of great significance for saving water resources.

At present, there are mainly three types of methods for water leakage detection in water supply pipe networks:

1. Flow analysis method: By collecting the flow data of the main pipe and branch pipes, and comparing the difference between the sum of the main pipe flow and the branch pipe flow, it is judged whether there is a water leakage phenomenon, and if there is, further investigation of the leakage point. This method can be used not only in large pipe network systems, but also in building water supply systems, but it cannot judge the water leakage of pipes after installing branch pipe flowmeters.

2. Listening detection method: When the water supply pipeline leaks, the water escapes under pressure to produce a noise, which will spread along the pipeline to both sides, or spread to the ground along the medium, and the water leakage detection instrument is to pick up The sound of water leakage is converted into an electrical signal, which is amplified accordingly and digitally filtered to determine the exact location of the water leakage point. This method is mainly used by water supply companies to inspect large water supply pipe network systems and find water leakage points, but for water leakage in user units or households, water supply companies usually do not intervene in the investigation.

3. Humidity-sensitive detection method: If the faucet is forgotten to be turned off or the water pipe bursts, the water level on the floor of the room will be detected when the moisture-sensitive detector placed on the floor is below. If it is used together with a networked alarm host, the alarm host can automatically Make an emergency call, send a text message or sound the alarm on the spot. This method is mainly used in the water supply system in the building, but it cannot identify water leakage in the pool such as the valve is not closed.

Among the above three types of methods, the detection of water leakage such as the tap water valve of the terminal not being closed or the tap water valve malfunctioning (because the water all flows into the pool) is not involved, and this type of water leakage occurs frequently.

Contents of the invention

The purpose of this utility model is to solve the above problems and provide a wireless network-based water leakage detection and alarm system suitable for detecting water leakage in small-scale pipe networks, which can accurately determine the location of water leakage and issue an alarm.

For this reason, the technical solution of the utility model is: a water leakage detection and alarm system based on a wireless network, which is characterized in that: it includes a flow meter, a wireless communication node and an intelligent detection alarm, and the flow meter and the wireless communication node are installed in the water supply pipe network On the main pipe and each branch pipe, the flow meter and the wireless communication node transmit the water flow signal in the water pipe to the intelligent detection alarm through wireless signals; the intelligent detection alarm includes an information processing module, an audible and visual alarm module and a wireless communication module. The information processing module is used to process the received water flow signal, and the intelligent detection alarm communicates with the user's mobile terminal through the wireless communication module.

When the utility model works, the intelligent detection alarm collects, analyzes and stores the water flow signals from each flow meter and wireless communication node, and the information processing module judges in real time whether there is water leakage by comparing the flow changes of each flow meter under normal conditions Situation happens. When the system judges that the pipe network is leaking, the sound and light alarm module can send out sound and light alarms on the spot, and at the same time, the signal can be sent to the mobile terminal of the user through the wireless communication module, that is, the mobile phone of the monitoring personnel, so that the monitoring personnel can understand the pipe network in time water supply flow and water leakage.

Description of drawings

Below in conjunction with accompanying drawing and embodiment of the present utility model will be described in further detail

Fig. 1 is the flow meter installation schematic diagram of the present utility model;

Fig. 2 is a structural block diagram of the utility model.

The marks in the figure are: flow meter 1, wireless communication node 2, main pipe 31, branch pipe 32, and water valve 4.

detailed description

See attached picture. This embodiment includes a flowmeter 1, a wireless communication node 2 and an intelligent detection alarm. The flowmeter 1 and the wireless communication node 2 are installed on the main pipe 31 and each branch pipe 32 of the water supply network. The water flow signal in the water pipe is transmitted to the intelligent detection alarm through wireless signals; the intelligent detection alarm is placed within the range of the wireless line number, and the intelligent detection alarm includes an information processing module, an acousto-optic alarm module and a wireless communication module. The processing module is used to process the received water flow signal, and the intelligent detection alarm performs information interaction with the user's mobile terminal through the wireless communication module. The power supply of the flowmeter 1 and the wireless communication module can be powered by wired mode if it is indoors, or it can be powered by wired or solar energy if it is outdoors.

The wireless communication node of this embodiment can select different communication modes according to the transmission distance, and the Zigbee transmission distance is used as a boundary: within the Zigbee transmission distance, the wireless communication node can adopt the Zigbee communication module; beyond the Zigbee transmission distance, the wireless communication node can adopt Wireless communication (3G, 4G) module.

When this embodiment is working, the intelligent detection alarm collects, analyzes and stores the water flow signals from each flow meter 1, and the information processing module judges in real time whether there is any water leakage by comparing the flow changes of each flow meter 1 under normal conditions , based on:

1. If the flow rate of the main pipe 31 is greater than the sum of the flow rates of the branch pipes 32, it is judged that there is water leakage in the pipe network between the total flow meter and each sub-flow meter;

2. Compared with the data in the normal working state, when the flow value of a sub-flowmeter does not return to zero within a certain period of time, it is judged that the pipeline behind the sub-flowmeter is leaking, because in normal operation, the terminal water valve 4 will not always be open.

When the system judges that the pipe network is leaking, the sound and light alarm module of the intelligent detection alarm can send out sound and light alarms on the spot, and at the same time, the signal can be sent to the mobile terminal of the user through the wireless communication module, that is, the mobile phone of the monitoring personnel, so that the monitoring The personnel can keep abreast of the water supply flow and water leakage of the pipe network through the mobile APP.

Claims (1)

1. based on the water leakage detection warning system of wireless network, it is characterized in that: include effusion meter, wireless communication node and Intelligent detection alarming device, described effusion meter and wireless communication node are arranged on house steward and each arm of water supply network, effusion meter and wireless communication node by the water flow signal in water pipe by transmission of wireless signals to Intelligent detection alarming device；Described Intelligent detection alarming device comprises message processing module, sound and light alarm module and wireless communication module, and message processing module is for processing the water flow signal received, and it is mutual that Intelligent detection alarming device carries out information by wireless communication module and user mobile terminal.