Central air conditioner centralized control system based on LoRa wireless communication

Abstract

The utility model discloses a central air conditioner centralized control system based on LoRa wireless communication, which comprises a mobile terminal used for remotely controlling the operation of a central air conditioner, a central air conditioner controller used for controlling the operation of the central air conditioner, and an auxiliary control board used for independently controlling the operation of the air conditioner in each room, the mobile terminal is in wireless communication with the central air conditioner controller through LoRa, and the central air conditioner controller is electrically connected with the auxiliary control board; and the auxiliary control board is electrically connected with the air conditioning unit, the fresh air unit and the sensor group in the room. According to the central air conditioner centralized control system based on LoRa wireless communication, communication between the mobile terminal and the central air conditioner controller is achieved through LoRa wireless communication, remote control can be achieved without connecting a communication cable, system cost is reduced, and system stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of central air-conditioning control, and more specifically to a central air-conditioning centralized control system based on LoRa wireless communication. Background Art

[0002] Previously, most central air conditioning control systems were deployed based on the RS485 bus. All temperature control panels were connected in series via the 485 bus and then connected to the server via a gateway. This approach would bring a lot of work to the early construction, and a large number of communication cables would also increase the cost of the system. Moreover, if a bus connection is used, as long as a node has a problem, it is likely to cause the entire bus to fail, causing system instability. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a central air-conditioning centralized control system based on LoRa wireless communication, which adopts LoRa wireless communication technology to reduce system costs.

[0004] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0005] A central air-conditioning centralized control system based on LoRa wireless communication comprises a mobile terminal for remotely controlling the operation of a central air-conditioning, a central air-conditioning controller for controlling the operation of the central air-conditioning, and an auxiliary control board for individually controlling the operation of the air-conditioning in each room. The mobile terminal and the central air-conditioning controller perform wireless communication via LoRa, and the central air-conditioning controller is electrically connected to the auxiliary control board; the auxiliary control board is electrically connected to the air-conditioning unit, the fresh air unit and the sensor group in the room.

[0006] To further optimize the technical solution, the mobile terminal is provided with a LoRa gateway for performing LoRa wireless communication with the central air-conditioning controller.

[0007] To further optimize the technical solution, the central air-conditioning controller includes a LoRa communication module for wirelessly communicating with a LoRa gateway and a main control board for receiving control instructions from a mobile terminal and issuing control instructions to an auxiliary control board. The LoRa communication module and the LoRa gateway communicate wirelessly via LoRa, and the main control board is electrically connected to the LoRa communication module and the auxiliary control board, respectively.

[0008] To further optimize the technical solution, the central air-conditioning controller also includes an air-conditioning status memory for storing control status information, and the input end of the air-conditioning status memory is connected to the output end of the main control board.

[0009] To further optimize the technical solution, the sensor group includes a temperature sensor arranged in the room for collecting indoor temperature information and a humidity sensor for collecting indoor humidity information, and the output ends of the temperature sensor and the humidity sensor are respectively connected to the input end of the auxiliary control board.

[0010] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0011] The utility model provides a central air-conditioning centralized control system based on LoRa wireless communication, which adopts LoRa wireless communication to realize the communication between the mobile terminal and the central air-conditioning controller. Remote control can be realized without connecting communication cables, thereby reducing system costs and improving system stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural block diagram of the utility model. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] A central air conditioning centralized control system based on LoRa wireless communication, combined with Figure 1 As shown, it includes a mobile terminal, a central air conditioning controller and an auxiliary control board. The mobile terminal is used to remotely control the central air conditioning, the central air conditioning controller is used to control the central air conditioning, and the auxiliary control board is used to individually control the control work in each room. The mobile terminal and the central air conditioning controller communicate wirelessly via LoRa, and the central air conditioning controller is electrically connected to the auxiliary control board.

[0015] The mobile terminal is equipped with a LoRa gateway for performing LoRa wireless communication with the central air-conditioning controller.

[0016] The central air-conditioning controller includes a LoRa communication module, a main control board and an air-conditioning status memory. The LoRa communication module is used to perform LoRa wireless communication with the LoRa gateway. The main control board is used to receive control instructions from the mobile terminal and send control instructions to the auxiliary control board. The air-conditioning status memory is used to store the status information of the central air-conditioning. The LoRa communication module and the LoRa gateway perform wireless communication through LoRa. The main control board is electrically connected to the LoRa communication module and the auxiliary control board respectively, and the output end of the main control board is connected to the input end of the air-conditioning status memory.

[0017] The auxiliary control board is arranged in a separate room, and is electrically connected to the air conditioning unit, the fresh air unit and the sensor group in the room, so as to control the operation of the air conditioning system in the room.

[0018] The sensor group is arranged in the room, including a temperature sensor and a humidity sensor. The temperature sensor is used to collect indoor temperature information, and the humidity sensor is used to collect humidity information in the room. The output ends of the temperature sensor and the humidity sensor are respectively connected to the input end of the PLC controller.

[0019] When the utility model is working, the temperature sensor and the humidity sensor respectively collect the temperature and humidity information in the room, and send the temperature and humidity information to the main control board through the auxiliary control board, and upload it to the mobile terminal through the LoRa communication module. The user can view the temperature and humidity information of each room in real time on the mobile terminal, and control the air conditioning of each room according to the real-time monitored temperature and humidity information. The staff sends a control instruction from the mobile terminal, which is transmitted to the main control board of the central air-conditioning controller via the LoRa gateway. The main control board sends a control instruction to the corresponding auxiliary control board according to the control instruction, and the auxiliary control board controls the air-conditioning unit and the fresh air unit in the room according to the control instruction, thereby realizing remote control of the central air-conditioning.

Claims

1. A central air conditioning centralized control system based on LoRa wireless communication, characterized in that: It includes a mobile terminal for remotely controlling the operation of a central air conditioner, a central air conditioner controller for controlling the operation of the central air conditioner, and an auxiliary control board for individually controlling the operation of the air conditioner in each room. The mobile terminal and the central air conditioner controller communicate wirelessly via LoRa, and the central air conditioner controller is electrically connected to the auxiliary control board; the auxiliary control board is electrically connected to the air conditioning unit, fresh air unit and sensor group in the room.

2. A central air conditioning centralized control system based on LoRa wireless communication according to claim 1, characterized in that: The mobile terminal is provided with a LoRa gateway for performing LoRa wireless communication with the central air-conditioning controller.

3. A central air conditioning centralized control system based on LoRa wireless communication according to claim 2, characterized in that: The central air conditioning controller includes a LoRa communication module for wirelessly communicating with a LoRa gateway and a main control board for receiving control instructions from a mobile terminal and sending control instructions to an auxiliary control board. The LoRa communication module and the LoRa gateway communicate wirelessly via LoRa, and the main control board is electrically connected to the LoRa communication module and the auxiliary control board, respectively.

4. A central air conditioning centralized control system based on LoRa wireless communication according to claim 3, characterized in that: The central air-conditioning controller also includes an air-conditioning state memory for storing control state information, and an input end of the air-conditioning state memory is connected to an output end of the main control board.

5. A central air conditioning centralized control system based on LoRa wireless communication according to claim 1, characterized in that: The sensor group includes a temperature sensor arranged in the room for collecting indoor temperature information and a humidity sensor for collecting indoor humidity information. The output ends of the temperature sensor and the humidity sensor are respectively connected to the input ends of the auxiliary control board.

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