Intelligent Control system of Air Source Heat pump

　　I. description of requirements

There are many series of air energy and heat pump products, a wide range of users, and a high failure rate in the process of operation; all kinds of problems need timely and comprehensive feedback from the users, but the users are not professional maintenance personnel of the heat pump. unable to clearly describe the failure of the equipment in the process of operation, the heat pump company needs to send engineers to the site to solve, long processing time and high operating costs. 

In view of the above problems, our company has developed a distributed heat pump unit remote control system based on the Internet of things, which realizes group monitoring and management of heat pump units, automatic operation, energy consumption operation monitoring, remote unattended and real-time monitoring. achieve commercial operation, improve service efficiency and after-sales protection for consumers.

　　II. Function description

Water temperature and water level control of heat storage tank. 

Water temperature and water level control of constant temperature water tank. 

Pipeline circulation / backwater control. 

Anti-freezing / defrosting control of pipeline. 

Air energy heat pump / circulation pump / feed water solenoid valve control. 

Manual heating / circulation / heat preservation / heating. 

Query of temperature curve record. 

Statistics of power consumption of the system. 

Fault display / alarm. 

Remote temperature parameter settin

III. Description of communication architecture. 

The system combines the air energy heat pump unit, Internet of things communication technology (4G/5G/ network) and Juying remote intelligent monitoring cabinet to realize the remote centralized monitoring and management of the working status of the heat pump unit.

　　IV. Description of process realization

The main engine controller of the heat pump realizes the control and operation of its own business logic, and the intelligent control cabinet is independent of the main engine of the heat pump, realizing multi-host and regional remote monitoring and management, without affecting the operation of the control logic of the main engine of the heat pump. it can also realize remote manual control of host start and stop, remote control of related circulating pumps, make-up pumps, intake valves, check valves, return valves and other equipment and related working modes. 

The regional multi-host linkage working mode can adjust the parameters remotely through mobile phone APP and computer monitoring center at any time.

V, hardware control cabinet configuration

2.Sensor

VI. Cloud platform description

The application of intelligent air energy hot water system enables users to monitor the equipment in real time and adjust it in real time according to their actual needs. 

For example, the temporary demand is small and do not need so much water, so the water level can be a little higher, so we should not burn so much hot water, that is, save electricity and reduce the loss of equipment. 

After all, too much hot water dissipates too much heat. 

When there is something wrong with the operation of the equipment, you can check and deal with it on the mobile phone as soon as possible, if the software problem can be repaired immediately. 

In addition, when the user does not know how to use the device, he can assist the user to manage it on the remote mobile phone. 

Of course, hardware failures still need to be dealt with door-to-door, but it can also be done as early as possible. 

1. 

Configuration monitoring interface. 

Through the configuration function of Juying Cloud platform, the running scene of air energy host group is built with zero programming and zero cost, and the running status of each host, water pump and valve can be viewed intuitively through the configuration scene. dynamic data monitoring function of water tank temperature, water level, pipe temperature and so on.

2

Data monitoring interface. 

The system monitoring function displays the use status of the control terminal through the list (air energy, heat pump unit supply and return water temperature monitoring and related parameter setting). It can also alarm when a fault occurs somewhere in the system, and the sound alarm function can be added if necessary.

　　3.智能逻辑控制

The intelligent automatic control function is used to adjust the modes of group linkage, task reservation, energy saving and temperature protection in the multi-host project, and the automatic operation parameters in various modes are set and adjusted remotely through the mobile phone APP/ computer monitoring platform, which takes effect in real time. 

Group permission control: that is, you can add any number of units to the same group, and use rules for different groups, and set multiple control functions for different periods of time according to daily, weekly or specific time, so as to realize the unified control plan of [group thermostat]. 

(such as different classes between school grades, dormitory buildings, teaching buildings, teachers' offices, classrooms and other places with the same rules), set up a group control plan. 

Reservation task planning: with the task planning function, the automatic timing control function can be realized, and the intelligent control can be realized according to the specified time system. 

Energy-saving mode: the system can realize automatic energy-saving operation according to user habits and setting requirements. 

High and low temperature protection: the monitoring system real-time monitors all the control points in the system, intelligently analyzes the ambient temperature of each control point, and realizes the protection of too high or too low temperature.

4. 

Centralized monitoring of equipment. 

Property managers can directly control the use of the terminal in the software system management center (air energy, heat pump unit supply and return water temperature monitoring and related parameter setting). 

That is, in the control center of the system, you can directly control the use of the terminal, such as: turn on, turn off, adjust the temperature of supply and return water, or set energy-saving mode or other functions regularly. 

The real-time monitoring of the system can timely understand the running status of the system, and immediately find problems and solve them in time, so as to ensure the normal operation of the system.

5. 

Monitoring data alarm. 

Through Juyingyun platform mobile phone APP or WEB monitoring platform to set water temperature and water tank water level sensor upper and lower limit numerical alarm, valve / pump switch signal alarm mode, real-time effective response. 

Alarm methods include APP message push, Wechat official account message notification, active call, SMS content alarm and other four ways to ensure that when the data is abnormal, users will be notified through multiple channels.

6. 

User rights management. 

Have different permissions on the specified device for different users: 

Management permissions: device information management permissions, delete device permissions, control permissions, sharing permissions, device internal parameter configuration permissions, cloud policy control configuration permissions. 

Z. edit permissions: device information management rights. 

Z operation permission: the operation right to remotely control the device. 

Read-only permissions: view the real-time status of the device, view the historical data, curves, and statistical reports of the device.

7. 

Data curve monitoring

The platform automatically records the sensor data and control data monitored by the equipment, once a minute, which can be displayed by curve query, or viewed by downloading and exporting EXCEL table data. It also supports automatic sending and receiving mailboxes of backup data every day.

　　8.视频监控

　　平台支持接入海康威视/萤石云等网络摄像头，支持视频监控和数据界面通步展示，当远程控制水泵，阀门时，通过视频监控获取实时动作反馈。

　　7. Use effect

　The focus is on the monitoring effect of the automatic control system of the control cabinet.

　　VIII. Application cases