Multi-communication intelligent scheduling constant-pressure water supply terminal

Abstract

The utility model relates to a multi-communication intelligent scheduling constant-pressure water supply terminal which comprises a PLC core controller, an expansion serial port communication module, a state acquisition module, an analog quantity acquisition module, a data transmission module and a data acquisition module. The PLC core controller is respectively in communication connection with the expansion serial port communication module, the state acquisition module and the analog quantity acquisition module through a bus, the PLC core controller is in wired access to the network switch through a network port, and the network switch is in wired connection with the upper monitoring platform. One serial port of the PLC core controller is in wireless communication with an upper monitoring platform through a data transmission module, and the other serial port of the PLC core controller is in wired connection with a plurality of water pump frequency converters; the expansion serial port communication module is electrically connected with the data acquisition module, and the data acquisition module is connected with a pressure meter, a flow meter and a liquid level meter. The working state of the water pump can be automatically adjusted, constant water pressure is kept, and the water supply capacity is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water supply of drainage pump stations, and in particular relates to a multi-communication intelligent scheduling constant pressure water supply terminal. Background Art

[0002] With the rapid development of economy and society, urban construction is advancing rapidly, and people's requirements for water supply quality, water supply pressure and water supply reliability are becoming increasingly higher. Traditional water supply methods have the problem of unstable water pressure, which has long plagued the development of water supply systems. Utility Model Content

[0003] In order to solve the problems of the existing technology, the utility model proposes a multi-communication intelligent scheduling constant pressure water supply terminal to solve the current problem of unstable water supply pressure.

[0004] The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. According to a multi-communication intelligent scheduling constant pressure water supply terminal proposed in the present invention, it includes a PLC core controller, a serial communication module, a status acquisition module, an analog acquisition module, a wireless communication module, and a data acquisition module; the PLC core controller is respectively connected to the serial communication module, the status acquisition module, and the analog acquisition module through a bus, the PLC core controller is wired to the network switch through the network port, the network switch is wired to the upper monitoring platform, and the PLC core controller is wirelessly connected to the upper monitoring platform through the wireless communication module, the serial communication module is electrically connected to the data acquisition module, and the data acquisition module is electrically connected to the pressure gauge, flow meter, and liquid level gauge respectively; the PLC controller is also wired to several water pump frequency converters.

[0005] Furthermore, the PLC core controller is connected to the display screen via a network switch.

[0006] The beneficial effect is that the display screen can display various data collected by the terminal in real time, and can directly control the start and stop of the water pump.

[0007] Furthermore, it also includes a power module, which is electrically connected to the PLC core controller.

[0008] Furthermore, the PLC core controller is connected to the temperature acquisition module via a network switch, and the temperature acquisition module is connected to a plurality of water pump temperature sensors.

[0009] The beneficial effect is: it is used to collect the temperature of the water pump in real time. When it exceeds the set threshold, the water pump is stopped to avoid overheating and damage to the water pump.

[0010] Furthermore, the serial communication module and the data acquisition module are connected via RS485 twisted pair shielded cable. At the same time, the serial communication module and the data acquisition module can also be connected to the Lora wireless communication module. The two Lora wireless communication modules are wireless communication connections, and one of them is selected based on the difficulty of on-site wiring.

[0011] Furthermore, the PLC core controller is connected to the DTU data transmission module via a RS485 serial port and is connected to several water pump inverters via another RS485 serial port.

[0012] In summary, the utility model analyzes and processes various data collected on-site through different devices, connects to the upper monitoring platform through multiple communication methods, and collects various sensor data downward, supporting wired or wireless communication. The data is transmitted remotely, and the information is centrally managed while the current results can be monitored in real time on the display screen. The speed can be directly controlled through the water pump inverter, and the water supply pressure and water supply volume can be automatically adjusted according to demand, thereby avoiding water waste and achieving the purpose of water saving and environmental protection. It also makes the water supply process more comfortable and energy-saving, reducing energy waste.

[0013] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model. DETAILED DESCRIPTION

[0015] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0016] An embodiment of a multi-communication intelligent scheduling constant pressure water supply terminal:

[0017] like Figure 1 As shown, a multi-communication intelligent scheduling constant pressure water supply terminal includes a PLC core controller 2, a serial communication module 3, a status acquisition module 4, an analog acquisition module 5, a wireless communication module, and a data acquisition module. The serial communication module 3 is an extended RS485 serial communication module, and the wireless communication module is a DTU data transmission module 6.

[0018] The PLC core controller 2 is connected to the serial communication module 3, the state acquisition module 4 and the analog acquisition module 5 through the bus. The state acquisition module 4 and the analog acquisition module 5 are used to collect the status of the on-site relay and the current and voltage values of the equipment.

[0019] The serial communication module 3 supports the collection of various instrument data (485 signals or 4-20mA signals), including pressure gauges, flow meters, liquid level gauges, etc. The serial communication module 3 can be connected to the data acquisition module via a 485 twisted pair shielded cable to collect data using wired communication. At the same time, when the site does not have wiring conditions, it can be connected to the Lora wireless communication module 7 via a 485 twisted pair shielded cable, and the Lora wireless communication module with the same frequency band can be connected to the data acquisition module by wire, and the data of the on-site instrument equipment can be collected by wireless communication, so as to achieve the effect of eliminating wiring and saving construction costs. The use of wireless communication or wired communication can be decided based on the difficulty of on-site wiring.

[0020] The data acquisition module is connected to a pressure gauge, a flow meter and a liquid level gauge. The start and stop of the pump are determined by the collected liquid level data. When the liquid level is lower than the threshold, the pump is stopped; when the liquid level is higher than the threshold, the pump is started.

[0021] The PLC core controller 2 is wired to a network switch via a network port. The network switch is also wired to the upper-level monitoring platform, uploading data to the upper-level monitoring platform via the wired network. Simultaneously, the PLC core controller 2 is wired to the DTU data transmission module 6 via an RS485 serial port. The DTU data transmission module 6 is wirelessly connected to the upper-level monitoring platform. If the wired network is disconnected due to factors such as fiber breakage, it automatically switches to wireless communication. Multiple communication methods ensure that the device is always online, improving the reliability of the terminal system.

[0022] The PLC core controller 2 is connected to several water pump inverters through another RS485 serial port. The water pump inverter adjusts the speed according to the real-time water pressure control and feeds the pressure signal detected by the sensor back to the PLC core controller, thereby adjusting the water pump operating frequency to maintain a constant water supply pressure.

[0023] The PLC core controller 2 is connected to the display screen through a network switch. The display screen is used to display the various data collected by the terminal in real time. It can also directly control the start and stop of the water pump. The network switch is also connected to the temperature acquisition module. The temperature acquisition module is connected to several water pump temperature sensors for collecting the temperature of the water pump. When the water pump temperature exceeds the set threshold, the PLC outputs a control signal to stop the water pump.

[0024] In this embodiment, the constant pressure parameters of the water pump, and the parameters of the main pump and auxiliary pump involved in constant pressure regulation can all be configured and modified through the platform or the display screen.

[0025] In this embodiment, a power supply module 1 is further included. The power supply module 1 is electrically connected to the PLC core controller 2 and is used to power the device.

[0026] The above is only a preferred embodiment of the present invention. Any simple modification, equivalent change and modification made to the above embodiment by any technician familiar with the profession based on the technical essence of the present invention without departing from the scope of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A multi-communication intelligent scheduling constant pressure water supply terminal, characterized by: It includes a PLC core controller (2), a serial communication module (3), a state acquisition module (4), an analog quantity acquisition module (5), a wireless communication module and a data acquisition module; The PLC core controller (2) is connected to the serial communication module (3), the state acquisition module (4) and the analog acquisition module (5) through the bus, the PLC core controller (2) is connected to the network switch through the network port, the network switch is connected to the upper monitoring platform through the wired connection, and the PLC core controller (2) is also in wireless communication with the upper monitoring platform through the wireless communication module; The serial communication module (3) is electrically connected to the data acquisition module, and the data acquisition module is electrically connected to the pressure gauge, flow meter and liquid level meter respectively; the PLC core controller is also connected to several water pump frequency converters by wire.

2. A multi-communication intelligent scheduling constant pressure water supply terminal according to claim 1, characterized in that: The PLC core controller (2) is connected to the display screen via a network switch.

3. The multi-communication intelligent scheduling constant pressure water supply terminal according to claim 1 is characterized by: It also includes a power supply module (1), which is electrically connected to the PLC core controller (2).

4. The multi-communication intelligent scheduling constant pressure water supply terminal according to claim 1 is characterized by: The PLC core controller (2) is connected to the temperature acquisition module via a network switch, and the temperature acquisition module is connected to a plurality of water pump temperature sensors.

5. The multi-communication intelligent scheduling constant pressure water supply terminal according to claim 1 is characterized by: The serial communication module (3) and the data acquisition module are connected via a RS485 twisted pair shielded cable.

6. The multi-communication intelligent scheduling constant pressure water supply terminal according to claim 1 is characterized by: The serial communication module (3) and the data acquisition module are both connected to the Lora wireless communication module (7) via wires, and the two Lora wireless communication modules (7) are connected for wireless communication.

7. The multi-communication intelligent scheduling constant pressure water supply terminal according to claim 1 is characterized by: The PLC core controller (2) is connected to the DTU data transmission module via a RS485 serial port.

8. The multi-communication intelligent scheduling constant pressure water supply terminal according to claim 1, characterized in that: The PLC core controller (2) is connected to several water pump inverters via an RS485 serial port.

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