CN214174845U

CN214174845U - Heat supply measurement acquisition terminal with PID regulatory function

Info

Publication number: CN214174845U
Application number: CN202120412956.8U
Authority: CN
Inventors: 陈嗣栋; 江强
Original assignee: Xiamen Silian Information Technology Co ltd
Current assignee: Xiamen Silian Information Technology Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-09-10
Anticipated expiration: 2031-02-24

Abstract

The utility model provides a heat supply measurement acquisition terminal with PID regulatory function which characterized in that: the system comprises a PID controller, an M-BUS communication unit, an RS485 BUS communication unit, a Lora gateway, a real-time clock, a memory, a Bluetooth module, a power module, a 2G/3G/4G network module and an Ethernet module; the M-BUS communication unit, the RS485 BUS communication unit, the Lora gateway, the real-time clock, the memory, the Bluetooth module, the power module, the 2G/3G/4G network module and the Ethernet module are respectively connected with the PID controller; the utility model has various types of buses, can be connected with terminal devices with different protocols, and is very convenient to use; and a PID controller is configured, a PID control algorithm is adopted, temperature can be controlled quickly and accurately, and meanwhile, personnel are not required to participate in the whole process.

Description

Heat supply measurement acquisition terminal with PID regulatory function

Technical Field

The utility model relates to an acquisition terminal especially relates to a heat supply measurement acquisition terminal with PID regulatory function.

Background

The traditional heating control mode mainly has three modes, one mode is manual control, and a heating unit sends a person to control the opening degree of a main valve after manually acquiring or remotely and automatically acquiring the indoor temperature of a user. The second mode is to remotely issue an instruction to adjust the opening value of the main valve according to the remotely acquired indoor temperature value. Both of these approaches, due to the large hysteresis of the temperature response, often require multiple attempts to set the total valve opening value back and forth, which is not only inconvenient to use, but also ineffective. The third way is to use a main valve with PID control function to automatically control the temperature. In this way, although the main valve has a PID algorithm, the main valve does not modify the control coefficient according to the indoor temperature of the user, and therefore, the effect satisfactory to the user cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve prior art's problem, provide a heat supply measurement acquisition terminal who possesses the PID regulatory function, possesses multiple communication protocol interface for connect main valve and heating temperature controller, control the main valve and reach the purpose of accuse temperature.

The technical scheme of the utility model: the utility model provides a heat supply measurement acquisition terminal with PID regulatory function which characterized in that: the system comprises a PID controller, an M-BUS communication unit, an RS485 BUS communication unit, a Lora gateway, a real-time clock, a memory, a Bluetooth module, a power module, a 2G/3G/4G network module and an Ethernet module; the M-BUS communication unit, the RS485 BUS communication unit, the Lora gateway, the real-time clock, the memory, the Bluetooth module, the power module, the 2G/3G/4G network module and the Ethernet module are respectively connected with the PID controller; the power supply module provides a power supply for the whole acquisition terminal; the M-Bus communication unit is a two-path high-power M-Bus master station driving circuit, the data volume which can be accessed to various M-Bus slave terminals reaches 512, and the distance of Bus lines can reach 1000 meters; the RS-485 bus communication unit is two RS-485 driving circuits, and the data volume which can be accessed to various RS-485 slave terminals reaches 512; the Lora gateway provides support for access of the Lora terminal and can access 512 terminals.

The utility model has the advantages that: (1) the utility model has various types of buses, can be connected with terminal devices with different protocols, and is very convenient to use; (2) the utility model is provided with the PID controller, adopts the PID control algorithm, can quickly and accurately control the temperature, and simultaneously does not need personnel to participate in the whole process; (3) the utility model discloses dispose 2G 3G 4G network module, ethernet module, give the cloud ware through 2G 3G 4G network module, ethernet module with the signal transmission who gathers, the control of being convenient for.

Drawings

FIG. 1 is a schematic block diagram of the present invention; figure 2 is adopting the utility model discloses the heat supply control system at collection terminal.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 1: the utility model provides a heat supply measurement acquisition terminal with PID regulatory function which characterized in that: the system comprises a PID controller 1, an M-BUS communication unit 2, an RS485 BUS communication unit 3, a Lora gateway 4, a real-time clock 5, a memory 6, a Bluetooth module 7, a power module 8, a 2G/3G/4G network module 9 and an Ethernet module 10; the M-BUS communication unit 2, the RS485 BUS communication unit 3, the Lora gateway 4, the real-time clock 5, the memory 6, the Bluetooth module 7, the power module 8, the 2G/3G/4G network module 9 and the Ethernet module 10 are respectively connected with the PID controller 1; the power supply module 8 provides a power supply for the whole acquisition terminal; the M-Bus communication unit 2 is a two-path high-power M-Bus master station driving circuit, the data volume which can be accessed to various M-Bus slave terminals reaches up to 512, and the distance of Bus lines can reach 1000 meters; the RS-485 bus communication unit 3 is two RS-485 driving circuits, and the data volume which can be accessed to various RS-485 slave terminals is up to 512; the Lora gateway 4 provides support for access of the Lora terminals, and 512 terminals can be accessed.

As shown in fig. 2: the heat supply control system adopting the acquisition terminal of the utility model comprises a heat supply metering acquisition terminal 11, an electric flange ball valve 12 and a heating temperature controller 13; an electric flange ball valve 12 is arranged on a hot water supply pipeline, and a heating temperature controller 13 is arranged indoors; the heat supply metering acquisition terminal 11 is respectively connected with the electric flange ball valve 12 and the heating temperature controller 13; the heating temperature controller 13 collects room temperature signals and sends the room temperature signals to the heat supply metering collection terminal 11, the heat supply metering collection terminal 11 calculates a new valve opening value by taking the difference value between the collected room temperature value and the expected temperature as a basis and adjusting a proportion, an integral or a differential coefficient, then automatically sends an instruction to correct the opening value of the electric flange ball valve 12, then the heating temperature controller 13 collects room temperature signals again and sends the room temperature signals to the heat supply metering collection terminal 11, the heat supply metering collection terminal 11 calculates a new valve opening value by taking the difference value between the newly collected room temperature value and the expected temperature as a basis and adjusting the proportion, the integral or the differential coefficient, then automatically sends an instruction to correct the opening value of the electric flange ball valve 12, and the opening value of the valve is calculated and adjusted by continuous temperature collection, so that the room temperature is infinitely close to the expected value. In the operation process, the heat supply metering acquisition terminal 11 continuously transmits acquired data to the cloud server 14 through the built-in 2G/3G/4G network module 9 and the Ethernet module 10, so that monitoring is facilitated.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a heat supply measurement acquisition terminal with PID regulatory function which characterized in that: the system comprises a PID controller, an M-BUS communication unit, an RS485 BUS communication unit, a Lora gateway, a real-time clock, a memory, a Bluetooth module, a power module, a 2G/3G/4G network module and an Ethernet module; the M-BUS communication unit, the RS485 BUS communication unit, the Lora gateway, the real-time clock, the memory, the Bluetooth module, the power module, the 2G/3G/4G network module and the Ethernet module are respectively connected with the PID controller; the power supply module provides a power supply for the whole acquisition terminal; the M-Bus communication unit is two paths of high-power M-Bus master station driving circuits, the data volume which can be accessed to the M-Bus slave terminal reaches 512, and the distance of Bus lines can reach 1000 meters; the RS-485 bus communication unit is two RS-485 driving circuits, and the number of data which can be accessed to the RS-485 slave terminal is up to 512; the Lora gateway provides support for access of the Lora terminal and can access 512 terminals.