Heat pump centralized control system and control method thereof

Abstract

The invention relates to the technical field of heat pumps, in particular to a heat pump centralized control system and a control method thereof.The heat pump centralized control system comprises a plurality of heat pump assemblies and an upper computer, the upper computer is in communication connection with the heat pump assemblies through an RS-485 bus, and each heat pump assembly comprises a touch screen controller and a plurality of heat pump hosts; tail end temperature controllers are installed on tail end equipment of the heat pump main machines, the touch screen controller is in communication connection with the multiple heat pump main machines and the multiple tail end temperature controllers through RS-485 buses, and the on-off state, the operation mode and the temperature parameters of each heat pump assembly are set and controlled through the touch screen controller. The operation states of all the heat pump assemblies are monitored through the upper computer, decentralized processing and centralized control are achieved, operation is convenient, coordination control over the multiple heat pump hosts is facilitated, applicability is improved, the control effect is improved, remote program upgrading is conducted on each heat pump host through the upper computer, and remote maintenance, management and automatic upgrading are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pumps, and in particular to a heat pump centralized control system and a control method thereof. Background Art

[0002] The control scheme of traditional heat pump main engine generally adopts a one-to-one control method, that is, an independent control system controls an independent heat pump. In this way, controlling a heat pump main engine usually requires the corresponding wire controller to operate separately, and it is impossible to simultaneously meet the synchronous control of multiple heat pumps. However, in actual use, when multiple heat pumps need to be used at the same time, the traditional one-to-one control method is adopted. It is necessary to configure or control the relevant parameters through multiple wire controllers separately, which complicates the operation of controlling multiple heat pumps, makes it difficult to coordinate the control of multiple heat pumps, reduces applicability, and affects the control effect of the heat pump. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a heat pump centralized control system and a control method thereof that can realize remote maintenance, management and automatic upgrading, realize centralized control and decentralized processing, is easy to operate, facilitates coordinated control of multiple heat pumps, improves applicability, and improves control effects.

[0004] The technical solution adopted by the present invention is:

[0005] A heat pump centralized control system includes a heat pump component and a host computer. The heat pump component is provided with a plurality of groups. The host computer is communicatively connected with the plurality of heat pump components via an RS-485 bus. Each group of heat pump components includes a touch screen controller and a plurality of heat pump hosts. A terminal thermostat is installed on the terminal device of the heat pump host. The touch screen controller is communicatively connected with the plurality of heat pump hosts and the plurality of terminal thermostats via the RS-485 bus.

[0006] Preferably, each heat pump host is provided with a 4G-DTU wireless data transmission module, and is wirelessly connected to the host computer via the 4G-DTU wireless data transmission module.

[0007] Preferably, the plurality of heat pump hosts are composed of a master processor and fifteen slave processors connected in sequence, and the host computer is connected to the master processor via an RS-485 bus.

[0008] Preferably, the terminal device includes at least one of a fan coil unit, a radiation panel and a radiator.

[0009] Preferably, the touch screen controller is a 700IE-V3smart touch screen.

[0010] Preferably, the touch screen controller is connected to an audible and visual alarm.

[0011] Preferably, the host computer is a computer, and the computer is equipped with a USB interface.

[0012] The present invention also provides a control method for a heat pump centralized control system, comprising the following steps:

[0013] S1. Use a touch screen controller to set and control the on / off status, operation mode and temperature parameters of the sixteen heat pump hosts on each heat pump assembly;

[0014] S2, using the terminal thermostat to identify the real-time temperature information of the terminal device corresponding to the heat pump host, and feeding back the real-time temperature information to the touch screen controller through the RS-485 bus, and the touch screen controller controls the corresponding heat pump host to adjust the operating state according to the real-time temperature information;

[0015] S3, using the host computer to monitor the operating status of all heat pump hosts on the sixteen heat pump assemblies;

[0016] S4. Use the host computer to remotely upgrade the program of each heat pump host through the 4G-DTU wireless data transmission module.

[0017] The beneficial effects of the present invention are:

[0018] The heat pump centralized control system sets and controls the on / off status, operation mode and temperature parameters of each group of heat pump components through a touch screen controller, monitors the operation status of all heat pump components through a host computer, realizes decentralized processing and centralized control, is easy to operate, facilitates coordinated control of multiple heat pump hosts, improves applicability, and improves control effects. The host computer remotely upgrades the program of each heat pump host, thereby realizing remote maintenance, management and automatic upgrades. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the communication connection of the heat pump centralized control system. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1The present invention provides a technical solution: a heat pump centralized control system, including a heat pump component and a host computer, wherein the heat pump component is provided with a plurality of groups, the host computer and the plurality of groups of heat pump components are communicatively connected via an RS-485 bus, each group of heat pump components includes a touch screen controller and a plurality of heat pump hosts, a terminal thermostat is installed on the terminal device of the heat pump host, and the touch screen controller is communicatively connected with the plurality of heat pump hosts and the plurality of terminal thermostats via an RS-485 bus;

[0022] Each heat pump component operates independently, and the on / off status, operation mode and temperature parameters of each heat pump component are set and controlled through the touch screen controller. The data of each heat pump component is reported to the host computer, and the operation status of all heat pump components is monitored through the host computer, realizing decentralized processing and centralized control, which is easy to operate. When the heat pump host fails, it can be processed through the corresponding touch screen controller or the host computer, which is convenient for coordinated control of multiple heat pump hosts, improving applicability and control effect;

[0023] The terminal thermostat can realize precise control of each terminal device. Specifically, the terminal thermostat identifies the real-time temperature information of the terminal device corresponding to the heat pump host, and feeds back the real-time temperature information to the touch screen controller through the RS-485 bus. The touch screen controller controls the corresponding heat pump host to adjust the operating status according to the real-time temperature information.

[0024] In order to facilitate the program upgrade of each heat pump host, in the present embodiment, preferably, each heat pump host is provided with a 4G-DTU wireless data transmission module, and it is wirelessly connected to the host computer through the 4G-DTU wireless data transmission module, so that the host computer can send the software program to each heat pump host separately through the 4G-DTU wireless data transmission module, and then remotely upgrade the program of each heat pump host separately, so as to realize remote maintenance, management and automatic upgrade.

[0025] In order to facilitate improving the flexibility and scalability of the system, in this embodiment, preferably, several heat pump hosts are composed of a main processor and fifteen slave processors connected in sequence, and the upper computer and the main processor are connected through an RS-485 bus. The purpose is that the upper computer can effectively manage and monitor multiple slave processors through the main processor. The RS-485 bus allows long-distance transmission and multi-point communication, which enhances the reliability and anti-interference ability of the system, thereby optimizing energy efficiency and maintenance convenience.

[0026] In order to facilitate the selection and configuration of terminal devices according to different needs and spatial layouts, in this embodiment, preferably, the terminal device includes at least one of a fan coil unit, a radiation panel and a radiator. The purpose is to be able to select and configure according to different needs and spatial layouts, and at least one terminal device among the fan coil unit, the radiation panel and the radiator is set indoors, and the real-time temperature information of the terminal device is identified by the terminal thermostat.

[0027] In order to facilitate the provision of an intuitive interface that is easy to operate and navigate, in this embodiment, the touch screen controller is preferably a 700IE-V3smart touch screen. The purpose is that the 700IE-V3smart touch screen can quickly respond to touch operations, improve user experience, support personalized interface design, meet different application requirements, have strong anti-interference capabilities, and can monitor and display device status in real time, thereby improving the controllability of the system.

[0028] In order to quickly remind the operator when an abnormality or failure occurs in the system and ensure timely response, in this embodiment, preferably, the touch screen controller is connected to an audible and visual alarm. The purpose is that when an abnormality or failure occurs in the system, the touch screen controller controls the audible and visual alarm to send out an audible and visual alarm. The dual prompts of sound and light signals increase the alertness to potential dangers, can quickly remind the operator, ensure timely response, help to quickly locate the problem, and let the operator know which group of heat pump components has failed.

[0029] In order to facilitate the connection of USB devices and improve the flexibility of system management, in this embodiment, preferably, the host computer is a computer, and the computer is configured with a USB interface, the purpose is to facilitate the connection of USB devices, and then facilitate the computer to pull program upgrade software from the USB device, thereby improving the flexibility of system management.

[0030] The present invention also provides a control method for a heat pump centralized control system, comprising the following steps:

[0031] S1. Use a touch screen controller to set and control the on / off status, operation mode and temperature parameters of the sixteen heat pump hosts on each heat pump assembly;

[0032] S2, using the terminal thermostat to identify the real-time temperature information of the terminal device corresponding to the heat pump host, and feeding back the real-time temperature information to the touch screen controller through the RS-485 bus, and the touch screen controller controls the corresponding heat pump host to adjust the operating state according to the real-time temperature information;

[0033] S3, using the host computer to monitor the operating status of all heat pump hosts on the sixteen heat pump assemblies;

[0034] S4. Use the host computer to remotely upgrade the program of each heat pump host through the 4G-DTU wireless data transmission module to achieve remote maintenance, management and automatic upgrade.

[0035] The present invention also provides a second control method for a heat pump centralized control system, comprising the following steps:

[0036] S1. Use the host computer to set and control the on / off status, operation mode and temperature parameters of the sixteen heat pump hosts on each heat pump assembly;

[0037] S2, using the terminal thermostat to identify the real-time temperature information of the terminal device corresponding to the heat pump host, and feeding back the real-time temperature information to the touch screen controller through the RS-485 bus, and the touch screen controller controls the corresponding heat pump host to adjust the operating state according to the real-time temperature information;

[0038] S3, using the host computer to monitor the operating status of all heat pump hosts on the sixteen heat pump assemblies;

[0039] S4. Use the host computer to remotely upgrade the program of each heat pump host through the 4G-DTU wireless data transmission module to achieve remote maintenance, management and automatic upgrade.

[0040] The present invention also provides a third control method for a heat pump centralized control system, comprising the following steps:

[0041] S1. Use the host computer to set and control the on / off status, operation mode and temperature parameters of the sixteen heat pump hosts on each heat pump assembly;

[0042] S2, using the terminal thermostat to identify the real-time temperature information of the terminal device corresponding to the heat pump host, and feeding back the real-time temperature information to the touch screen controller through the RS-485 bus, and the touch screen controller controls the corresponding heat pump host to adjust the operating state according to the real-time temperature information;

[0043] S3. Use the host computer to monitor the operating status of all heat pump hosts on the sixteen heat pump components.

[0044] The present invention also provides a fourth control method for a heat pump centralized control system, comprising the following steps:

[0045] S1. Use a touch screen controller to set and control the on / off status, operation mode and temperature parameters of the sixteen heat pump hosts on each heat pump assembly;

[0046] S2, using the terminal thermostat to identify the real-time temperature information of the terminal device corresponding to the heat pump host, and feeding back the real-time temperature information to the touch screen controller through the RS-485 bus, and the touch screen controller controls the corresponding heat pump host to adjust the operating state according to the real-time temperature information;

[0047] S3. Use the host computer to monitor the operating status of all heat pump hosts on the sixteen heat pump components.

[0048] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat pump centralized control system, comprising a heat pump assembly, characterized in that: It also includes a host computer, and the heat pump components are provided with several groups. The host computer is communicatively connected with the several groups of the heat pump components via an RS-485 bus. Each group of the heat pump components includes a touch screen controller and several heat pump hosts. A terminal thermostat is installed on the terminal device of the heat pump host. The touch screen controller is communicatively connected with the several heat pump hosts and the several terminal thermostats via the RS-485 bus.

2. A heat pump centralized control system according to claim 1, characterized in that: Each of the heat pump hosts is provided with a 4G-DTU wireless data transmission module, and is wirelessly connected to a host computer via the 4G-DTU wireless data transmission module.

3. A heat pump centralized control system according to claim 1, characterized in that: The heat pump hosts are composed of a main processor and fifteen slave processors connected in sequence, and the host computer is connected to the main processor via an RS-485 bus.

4. A heat pump centralized control system according to claim 1, characterized in that: The terminal device includes at least one of a fan coil unit, a radiation panel and a radiator.

5. A heat pump centralized control system according to claim 1, characterized in that: The touch screen controller is a 700IE-V3smart touch screen.

6. A heat pump centralized control system according to claim 1, characterized in that: The touch screen controller is connected with an audible and visual alarm.

7. A heat pump centralized control system according to claim 1, characterized in that: The host computer is a computer, and the computer is equipped with a USB interface.

8. A control method for a heat pump centralized control system based on any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Use a touch screen controller to set and control the on / off status, operation mode and temperature parameters of the sixteen heat pump hosts on each heat pump assembly; S2, using the terminal thermostat to identify the real-time temperature information of the terminal device corresponding to the heat pump host, and feeding back the real-time temperature information to the touch screen controller through the RS-485 bus, and the touch screen controller controls the corresponding heat pump host to adjust the operating state according to the real-time temperature information; S3, using the host computer to monitor the operating status of all heat pump hosts on the sixteen heat pump assemblies; S4. Use the host computer to remotely upgrade the program of each heat pump host through the 4G-DTU wireless data transmission module.

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