Indoor fan coil control system

Abstract

The utility model provides an indoor fan coil control system which comprises a controller, a temperature acquisition module, a human body detection module, a temperature regulation and control module and a temperature execution module, the output end of the temperature acquisition module is electrically connected with the input end of the controller, and the temperature acquisition module is used for detecting the indoor temperature; whether there is no person in the room is detected through the human body detection module, if there is no person in the room, the temperature collection module detects the real-time temperature in the room, the temperature of the fan coil is set through the temperature regulation and control module, and when the detected temperature does not reach the set temperature, the controller controls the temperature execution module to control the water valve or the fan to be started. The indoor temperature reaches the set temperature, after the set temperature is reached, the controller stops operation of the water valve or the fan through the temperature execution module, and when the human body detection module detects that no one is in the room, the controller controls the fan coil to stop operation, so that energy consumption is reduced, and the purpose of saving energy is achieved.

Description

Technical Field

[0001] The utility model relates to the field of fan coil unit control, in particular to an indoor fan coil unit control system. Background Art

[0002] Indoor fan coil is a device used for indoor air conditioning, mainly composed of a small fan, an electric motor and a coil. Chilled water or hot water flows inside the coil, and the indoor temperature and humidity are adjusted by heat exchange with the outside air. The fan is responsible for sucking indoor air into the coil for heat exchange, and then sending the treated air back to the room to achieve the purpose of regulating the indoor environment.

[0003] A network temperature control system based on Zigbee technology with publication number CN105259945A includes a plurality of monitoring nodes for monitoring fan coils installed in a plurality of floors, a gateway node for bidirectional communication with the plurality of monitoring nodes, and a host computer for bidirectional communication with the gateway node. The monitoring node includes a data processing module 1 and a parameter setting unit, a display unit, a room temperature detection unit, a relay and a wireless communication module 1 respectively connected to the data processing module 1. The relay is connected to the fan coil, and the relay is a control component for controlling the operation of the fan coil. The gateway node includes a data processing module 2 and a wireless communication module 2 connected to the data processing module 2, and the data processing module 2 is connected to the host computer; the data processing module 1 and the data processing module 2 communicate bidirectionally through the wireless communication module 1 and the wireless communication module 2, and the wireless communication module 1 and the wireless communication module 2 are both ZigBee short-range communication modules. The existing fan coil control system will continue to move when no one is around, thereby increasing energy consumption, and thus failing to achieve the purpose of energy saving. Utility Model Content

[0004] In view of this, the utility model proposes an indoor fan coil control system, which can monitor whether the room is unmanned while detecting the indoor temperature, and control the fan coil to stop moving when no one is there, thereby reducing energy consumption and achieving the purpose of energy saving.

[0005] The technical solution of the utility model is implemented as follows: the utility model provides an indoor fan coil control system, including a controller, a temperature acquisition module, a human body detection module, a temperature control module and a temperature execution module, wherein the output end of the temperature acquisition module is electrically connected to the input end of the controller for detecting the indoor temperature; the output end of the human body detection module is electrically connected to the input end of the controller for judging whether there is human activity in the room; the output end of the temperature control module is electrically connected to the input end of the controller for setting the temperature of the fan coil; the input end of the temperature execution module is electrically connected to the output end of the controller for respectively controlling the opening and closing of the water valve and the fan to make the indoor temperature reach the set temperature.

[0006] On the basis of the above technical solution, preferably, the temperature acquisition module includes a resistor R10 and a temperature detection chip U6, the grounding end of the temperature detection chip U6 is grounded, the output end of the temperature detection chip U6 is electrically connected to the resistor R10 and the input end of the controller respectively, the other end of the resistor R10 is electrically connected to the power input end of the temperature detection chip U6, and the two are connected to the power supply in common.

[0007] On the basis of the above technical scheme, preferably, the human body detection module includes a human body detection sensor, an end row J1, a capacitor C7, a capacitor C8, a resistor R9 and a resistor R10, the output end of the human body detection sensor is electrically connected to the input end of the end row J1, the third pin of the end row J1 is electrically connected to the positive electrode of the capacitor C7, the capacitor C8 and the resistor R9, respectively, the second pin of the end row J1 is electrically connected to the negative electrode of the capacitor C7 and the other end of the capacitor C8, respectively, and are commonly grounded, the first pin of the end row J1 is electrically connected to the input end of the controller and the resistor R10, the other end of the resistor R10 is electrically connected to the other end of the resistor R9, and are commonly connected to the power supply.

[0008] On the basis of the above technical scheme, preferably, the temperature control module 4 includes a key switch SW1, a key switch SW2, a key switch SW3, a key switch SW4 and a resistor R8, wherein one end of the key switch SW1, the key switch SW2, the key switch SW3 and the key switch SW4 are electrically connected to the input end of the controller, the other ends of the key switch SW1, the key switch SW2, the key switch SW3 and the key switch SW4 are electrically connected and electrically connected to one end of the resistor R8, and the other end of the resistor R8 is grounded.

[0009] On the basis of the above technical solution, preferably, the temperature execution module includes two intermediate relays K1, one end of the coils of the two intermediate relays K1 are electrically connected to the output end of the controller, the other ends of the coils of the two intermediate relays K1 are electrically connected and commonly connected to the power supply, and the two ends of the contacts of the two intermediate relays K1 are respectively electrically connected to the external water valve and fan, and the controller controls the coils of the intermediate relays K1 to power on, so that the contacts are closed, and the external water valve and fan work.

[0010] On the basis of the above technical scheme, preferably, it also includes a display module, wherein the display module includes a power chip U3 and a display chip U2, wherein the power chip U3 is bidirectionally connected to the controller for communication, the power chip U3 is bidirectionally connected to the display chip U2 for communication, and the power input terminal of the power chip U3 and the display chip U2 are electrically connected and commonly connected to the power supply, the power chip U3 and the ground terminal of the display chip U2 are electrically connected and commonly grounded, and the display module is used to display the temperature detected by the temperature acquisition module.

[0011] On the basis of the above technical solution, preferably, a reset module is further included, wherein an output end of the reset module is electrically connected to an input end of the controller for resetting an output signal of the controller.

[0012] On the basis of the above technical solution, preferably, the reset module includes a resistor R1, a resistor R2, a reset switch SW5 and a capacitor C3, wherein the input end of the controller is electrically connected to the negative poles of the resistor R1, the resistor R2 and the capacitor C3, respectively, the other end of the resistor R2 is grounded, the other end of the resistor R1 is electrically connected to one end of the reset switch SW5, the other end of the reset switch SW5 is electrically connected to the positive pole of the capacitor C3, and are commonly connected to the power supply.

[0013] On the basis of the above technical solution, preferably, a Bluetooth communication module is further included, and the output end of the Bluetooth communication module is electrically connected to the input end of the controller to enable multiple controllers in the room to communicate.

[0014] On the basis of the above technical scheme, preferably, the Bluetooth communication module includes a chip U1, a capacitor C6, a resistor R4, a resistor R3, a capacitor C5, a capacitor C4, a crystal oscillator Y2 and an antenna AE1, wherein the power input end of the chip U1 is electrically connected to the capacitor C6 and the power supply respectively, the other end of the capacitor C6 is grounded, the power output end of the chip U1 is grounded, the pin 28 of the chip U1 is electrically connected to the crystal oscillator Y2, the capacitor C4 and the resistor R3 respectively, the other end of the capacitor C4 is grounded, the other end of the crystal oscillator Y2 is electrically connected to the other end of the resistor R3 and the pin 27 of the chip U1, and are electrically connected to one end of the capacitor C5, the other end of the capacitor C5 is grounded, the pin 25 of the chip U1 is electrically connected to the resistor R4, the other end of the resistor R4 is grounded, and the pin 22 and pin 21 of the chip U1 are electrically connected to the two ends of the antenna AE1 respectively.

[0015] The indoor fan coil control system of the utility model has the following beneficial effects compared with the prior art:

[0016] (1) The human body detection module detects whether the room is empty. If not, the temperature acquisition module detects the real-time temperature in the room, and the temperature control module sets the temperature of the fan coil unit. When the detected temperature does not reach the set temperature, the controller controls the temperature execution module to control the water valve and fan to open, so that the indoor temperature reaches the set temperature. When the set temperature is reached, the controller stops the water valve and fan through the temperature execution module. When the human body detection module detects that the room is empty, the controller stops the fan coil unit. The controller can monitor whether the room is empty while detecting the indoor temperature. If there is no one, the fan coil unit can be stopped to reduce energy consumption, thereby achieving energy saving.

[0017] (2) Communication between multiple indoor controllers is achieved through the Bluetooth communication module, so that multiple fan coil units can be turned on and off synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a system block diagram of the indoor fan coil control system of the utility model;

[0020] Figure 2 This is a circuit schematic diagram of the temperature acquisition module of the indoor fan coil control system of the utility model;

[0021] Figure 3 This is a circuit schematic diagram of a human body detection module of an indoor fan coil control system of the utility model;

[0022] Figure 4 It is a circuit schematic diagram of the controller, temperature control module and display module of the indoor fan coil control system of the utility model;

[0023] Figure 5 It is a circuit schematic diagram of the temperature execution module of the indoor fan coil control system of the utility model;

[0024] Figure 6 This is a circuit schematic diagram of a reset module of an indoor fan coil control system of the utility model;

[0025] Figure 7 This is a circuit schematic diagram of the Bluetooth communication module of the indoor fan coil control system of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1 As shown, an indoor fan coil control system of the utility model includes a controller 1, a temperature acquisition module 2, a human body detection module 3, a temperature control module 4 and a temperature execution module 5, wherein the output end of the temperature acquisition module 2 is electrically connected to the input end of the controller 1 for detecting the indoor temperature; the output end of the human body detection module 3 is electrically connected to the input end of the controller 1 for judging whether there is human activity in the room; the output end of the temperature control module 4 is electrically connected to the input end of the controller 1 for setting the mode and temperature of the fan coil; the input end of the temperature execution module 5 is electrically connected to the output end of the controller 1 for controlling the opening and closing of the water valve and the fan respectively, so that the indoor temperature reaches the set temperature.

[0028] It should be noted that the human body detection module 3 detects whether the room is empty. If not, the temperature acquisition module 2 detects the real-time temperature in the room, and the temperature control module 4 sets the mode and temperature of the fan coil unit. When the detected temperature does not reach the set temperature, the controller 1 controls the temperature execution module 5 to control the water valve and the fan to open, so that the indoor temperature reaches the set temperature. When the set temperature is reached, the controller 1 stops the water valve and the fan through the temperature execution module 5. When the human body detection module 3 detects that the room is empty, the controller 1 controls the fan coil unit to stop running. While detecting the indoor temperature, the controller 1 monitors whether the room is empty. When there is no one, the fan coil unit is controlled to stop moving, thereby reducing energy consumption and achieving energy saving.

[0029] like Figure 2 As shown, as a preferred implementation, the temperature acquisition module 2 in this embodiment includes a resistor R10 and a temperature detection chip U6, the grounding end of the temperature detection chip U6 is grounded, the output end of the temperature detection chip U6 is electrically connected to the resistor R10 and the input end of the controller 1 respectively, the other end of the resistor R10 is electrically connected to the power input end of the temperature detection chip U6, and they are commonly connected to the power supply.

[0030] It should be noted that the real-time indoor temperature is detected by the temperature detection chip U6, and the real-time signal after monitoring is transmitted to the controller 1 for processing to obtain the real-time indoor temperature. Specifically, the model of the temperature detection chip U6 can be DS18B20.

[0031] like Figure 3 As shown, as a preferred implementation, the human body detection module 3 in this embodiment includes a human body detection sensor, an end row J1, a capacitor C7, a capacitor C8, a resistor R9 and a resistor R10, the output end of the human body detection sensor is electrically connected to the input end of the end row J1, the third pin of the end row J1 is electrically connected to the positive electrode of the capacitor C7, the capacitor C8 and the resistor R9, respectively, the second pin of the end row J1 is electrically connected to the negative electrode of the capacitor C7 and the other end of the capacitor C8, respectively, and are commonly grounded, the first pin of the end row J1 is electrically connected to the input end of the controller 1 and the resistor R10, the other end of the resistor R10 is electrically connected to the other end of the resistor R9, and are commonly connected to the power supply.

[0032] It should be noted that the human body detection sensor and the controller 1 cooperate to detect whether there is a person in the room. Specifically, the model of the human body detection sensor in this embodiment is LD2410B.

[0033] like Figure 4As shown, as a preferred implementation, the temperature control module 4 in this embodiment includes a key switch SW1, a key switch SW2, a key switch SW3, a key switch SW4 and a resistor R8, wherein one end of the key switch SW1, the key switch SW2, the key switch SW3 and the key switch SW4 are all electrically connected to the input end of the controller 1, the other ends of the key switch SW1, the key switch SW2, the key switch SW3 and the key switch SW4 are electrically connected and electrically connected to one end of the resistor R8, and the other end of the resistor R8 is grounded.

[0034] It should be noted that the controller 1 is connected via a plurality of button switches, and people can directly set the mode and temperature of the indoor fan coil unit via the button switches.

[0035] like Figure 5 As shown, as a preferred embodiment, the temperature execution module 5 in this embodiment includes two intermediate relays K1, one end of the coils of the two intermediate relays K1 is electrically connected to the output end of the controller 1, the other end of the coils of the two intermediate relays K1 is electrically connected, and the power supply is commonly connected, and the two ends of the contacts of the two intermediate relays K1 are electrically connected to the external water valve and fan respectively, and the controller 1 controls the coils of the intermediate relays K1 to power on, so that the contacts are closed, and the external water valve and fan work. When the port of the controller 1 is pulled up, the contacts of the two intermediate relays K1 do not act; when the port of the controller 1 is pulled down, the contacts of the two intermediate relays K1 act, and the water valve and fan act.

[0036] It should be noted that the controller 1 controls the coil of the intermediate relay K1 to energize, close the contacts, connect the external water valve and fan, and make them work. The water valve and fan of the fan coil control the water flow and air flow respectively, and work together to adjust the indoor temperature to reach the set temperature.

[0037] like Figure 4 As shown, as a preferred implementation, this embodiment also includes a display module 6, and the display module 6 includes a power chip U3 and a display chip U2, wherein the power chip U3 is bidirectionally connected to the controller 1 for communication, the power chip U3 is bidirectionally connected to the display chip U2 for communication, and the power input terminal of the power chip U3 and the display chip U2 are electrically connected and commonly connected to the power supply, the power chip U3 and the ground terminal of the display chip U2 are electrically connected and commonly grounded, and the display module 6 is used to display the temperature detected by the temperature acquisition module 2.

[0038] It should be noted that the temperature acquisition module 2 detects the real-time indoor temperature and displays it through the display chip U2 through the controller 1. At the same time, when the mode and temperature of the fan coil are adjusted, the adjusted temperature will also be displayed on the display chip U2. Specifically, the model of the power chip U3 is MAX232, and the model of the display chip U2 is EA_eDIP128W-6LW.

[0039] like Figure 1 As shown, this embodiment further includes a reset module 7 , wherein the output end of the reset module 7 is electrically connected to the input end of the controller 1 , so as to reset the output signal of the controller 1 .

[0040] like Figure 6 As shown, as a preferred implementation, the reset module 7 in this embodiment includes a resistor R1, a resistor R2, a reset switch SW5 and a capacitor C3, wherein the input end of the controller 1 is electrically connected to the negative poles of the resistor R1, the resistor R2 and the capacitor C3, respectively, the other end of the resistor R2 is grounded, the other end of the resistor R1 is electrically connected to one end of the reset switch SW5, the other end of the reset switch SW5 is electrically connected to the positive pole of the capacitor C3, and are commonly connected to the power supply.

[0041] It should be noted that by pressing the reset switch SW5 , the setting data and output data of the controller 1 are restored to the initial values.

[0042] like Figure 1 As shown, since multiple fan coil units will be installed indoors when the indoor space is large, in order to allow the controllers 1 of multiple fan coil units to communicate with each other, this embodiment also includes a Bluetooth communication module 8, and the output end of the Bluetooth communication module 8 is electrically connected to the input end of the controller 1, so as to enable multiple controllers 1 in the room to communicate.

[0043] like Figure 7 As shown, as a preferred implementation, the Bluetooth communication module 8 in this embodiment includes a chip U1, a capacitor C6, a resistor R4, a resistor R3, a capacitor C5, a capacitor C4, a crystal oscillator Y2 and an antenna AE1, wherein the power input end of the chip U1 is electrically connected to the capacitor C6 and the power supply respectively, the other end of the capacitor C6 is grounded, the power output end of the chip U1 is grounded, the pin 28 of the chip U1 is electrically connected to the crystal oscillator Y2, the capacitor C4 and the resistor R3 respectively, the other end of the capacitor C4 is grounded, the other end of the crystal oscillator Y2 is electrically connected to the other end of the resistor R3 and the pin 27 of the chip U1, and is electrically connected to one end of the capacitor C5 in common, the other end of the capacitor C5 is grounded, the pin 25 of the chip U1 is electrically connected to the resistor R4, the other end of the resistor R4 is grounded, and the pins 22 and 21 of the chip U1 are electrically connected to the two ends of the antenna AE1 respectively.

[0044] It should be noted that the Bluetooth communication module 8 is used to realize communication between multiple indoor controllers 1, so that multiple fan coil units can be turned on and off synchronously.

[0045] Working principle:

[0046] The human body detection module 3 is used to detect whether there is no one in the room. If not, the temperature acquisition module 2 detects the real-time temperature in the room, and the temperature control module 4 sets the mode and temperature of the fan coil unit. When the detected temperature does not reach the set temperature, the controller 1 controls the temperature execution module 5 to control the water valve and the fan to open, so that the indoor temperature reaches the set temperature. When the set temperature is reached, the controller 1 stops the water valve or the fan through the temperature execution module 5. When the human body detection module 3 detects that there is no one in the room, the controller 1 controls the fan coil unit to stop running.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An indoor fan coil control system, characterized in that: The invention comprises a controller (1), a temperature acquisition module (2), a human body detection module (3), a temperature control module (4) and a temperature execution module (5), wherein the output end of the temperature acquisition module (2) is electrically connected to the input end of the controller (1) for detecting the indoor temperature; the output end of the human body detection module (3) is electrically connected to the input end of the controller (1) for judging whether there is human activity in the room; the output end of the temperature control module (4) is electrically connected to the input end of the controller (1) for setting the temperature of the fan coil unit; the input end of the temperature execution module (5) is electrically connected to the output end of the controller (1) for controlling the opening and closing of the water valve and the fan respectively, so that the indoor temperature reaches the set temperature.

2. The indoor fan coil control system according to claim 1, characterized in that: The temperature acquisition module (2) comprises a resistor R10 and a temperature detection chip U6, wherein the grounding terminal of the temperature detection chip U6 is grounded, the output terminal of the temperature detection chip U6 is electrically connected to the resistor R10 and the input terminal of the controller (1) respectively, and the other end of the resistor R10 is electrically connected to the power input terminal of the temperature detection chip U6 and is commonly connected to the power supply.

3. The indoor fan coil control system according to claim 1, characterized in that: The human body detection module (3) comprises a human body detection sensor, an end row J1, a capacitor C7, a capacitor C8, a resistor R9 and a resistor R10, wherein the output end of the human body detection sensor is electrically connected to the input end of the end row J1, the third pin of the end row J1 is electrically connected to the positive electrode of the capacitor C7, the capacitor C8 and the resistor R9 respectively, the second pin of the end row J1 is electrically connected to the negative electrode of the capacitor C7 and the other end of the capacitor C8 respectively, and are commonly grounded, the first pin of the end row J1 is electrically connected to the input end of the controller (1) and the resistor R10 respectively, the other end of the resistor R10 is electrically connected to the other end of the resistor R9, and are commonly connected to a power supply.

4. The indoor fan coil control system according to claim 1, characterized in that: The temperature control module (4) comprises a key switch SW1, a key switch SW2, a key switch SW3, a key switch SW4 and a resistor R8, wherein one end of the key switch SW1, the key switch SW2, the key switch SW3 and the key switch SW4 are all electrically connected to the input end of the controller (1), the other ends of the key switch SW1, the key switch SW2, the key switch SW3 and the key switch SW4 are electrically connected and electrically connected to one end of the resistor R8, and the other end of the resistor R8 is grounded.

5. The indoor fan coil control system according to claim 1, characterized in that: The temperature execution module (5) comprises two intermediate relays K1, one end of the coils of the two intermediate relays K1 are electrically connected to the output end of the controller (1), the other ends of the coils of the two intermediate relays K1 are electrically connected and connected to a common power supply, and the two ends of the contacts of the two intermediate relays K1 are electrically connected to an external water valve and a fan respectively. The controller (1) controls the coils of the intermediate relays K1 to be energized, so that the contacts are closed, and the external water valve and the fan are operated.

6. The indoor fan coil control system according to claim 1, characterized in that: It also includes a display module (6), the display module (6) including a power chip U3 and a display chip U2, wherein the power chip U3 is bidirectionally connected to the controller (1), the power chip U3 is bidirectionally connected to the display chip U2, and the power input terminals of the power chip U3 and the display chip U2 are electrically connected and commonly connected to the power supply, the power chip U3 and the ground terminal of the display chip U2 are electrically connected and commonly grounded, and the display module (6) is used to display the temperature detected by the temperature acquisition module (2).

7. The indoor fan coil control system according to claim 1, characterized in that: It also comprises a reset module (7), wherein an output end of the reset module (7) is electrically connected to an input end of the controller (1) and is used to reset an output signal of the controller (1).

8. The indoor fan coil control system according to claim 7, characterized in that: The reset module (7) comprises a resistor R1, a resistor R2, a reset switch SW5 and a capacitor C3, wherein the input end of the controller (1) is electrically connected to the negative electrodes of the resistor R1, the resistor R2 and the capacitor C3 respectively, the other end of the resistor R2 is grounded, the other end of the resistor R1 is electrically connected to one end of the reset switch SW5, the other end of the reset switch SW5 is electrically connected to the positive electrode of the capacitor C3, and are commonly connected to a power supply.

9. The indoor fan coil control system according to claim 1, characterized in that: It also includes a Bluetooth communication module (8), the output end of the Bluetooth communication module (8) being electrically connected to the input end of the controller (1) for enabling multiple controllers (1) in the room to communicate.

10. The indoor fan coil control system according to claim 9, characterized in that: The Bluetooth communication module (8) comprises a chip U1, a capacitor C6, a resistor R4, a resistor R3, a capacitor C5, a capacitor C4, a crystal oscillator Y2 and an antenna AE1, wherein the power input end of the chip U1 is electrically connected to the capacitor C6 and the power supply respectively, the other end of the capacitor C6 is grounded, the power output end of the chip U1 is grounded, the pin 28 of the chip U1 is electrically connected to the crystal oscillator Y2, the capacitor C4 and the resistor R3 respectively, the other end of the capacitor C4 is grounded, the other end of the crystal oscillator Y2 is electrically connected to the other end of the resistor R3 and the pin 27 of the chip U1, and is electrically connected to one end of the capacitor C5, the other end of the capacitor C5 is grounded, the pin 25 of the chip U1 is electrically connected to the resistor R4, the other end of the resistor R4 is grounded, and the pins 22 and 21 of the chip U1 are electrically connected to the two ends of the antenna AE1 respectively.

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