CN217763847U - Indoor environment detection device - Google Patents
Indoor environment detection device Download PDFInfo
- Publication number
- CN217763847U CN217763847U CN202221742570.4U CN202221742570U CN217763847U CN 217763847 U CN217763847 U CN 217763847U CN 202221742570 U CN202221742570 U CN 202221742570U CN 217763847 U CN217763847 U CN 217763847U
- Authority
- CN
- China
- Prior art keywords
- unit
- indoor environment
- module
- pin
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an indoor environment detection device, which comprises an MCU unit, and a power supply unit, a communication unit, a storage unit, a gas sensor and a temperature and humidity sensor which are connected with the MCU unit; the power supply unit comprises an AC-DC module and a MicroUSB module A; the AC-DC module and the MicroUSB module A are respectively used for being connected with different types of external power supplies; the communication unit comprises an RS-485 module, a WiFi module, an RJ-45 module and a MicroUSB module B; the RS-485 module, the WiFi module, the RJ-45 module and the MicroUSB module B are respectively used for establishing communication connection with different types of external equipment; the utility model can adopt an indoor AC power supply or a MicroUSB charger to provide power supply, and is flexible and reliable; the system has multiple communication modes, and reduces the requirements of the equipment on indoor power supply and data transmission.
Description
Technical Field
The utility model belongs to the technical field of building thing networking check out test set, in particular to indoor environment detection device.
Background
Along with social development, people gradually attach importance to indoor working environment, and poor indoor environment not only affects working efficiency and comfort, but also can cause harm to physical and psychological health; the temperature and the humidity are two important parameters for representing the indoor environment quality, influence the perception of human body on radiation and heat and cold exchange, and directly influence the thermal comfort of the indoor human body; CO 2 2 TVOC is also used as two important parameters for representing indoor environment quality, influences human breathing feeling and is in CO for a long time 2 And the TVOC in an over-standard environment easily causes low attention, induces respiratory diseases and the like.
With the development of the digital intelligent technology, a plurality of temperature and humidity control theories and indoor air quality control theories are continuously applied to a building control system and are used for linking systems such as an air conditioner, fresh air and the like to provide a comfortable and energy-saving indoor environment; so as to detect indoor temperature, humidity and CO 2 The TVOC is further linked with equipment such as an indoor fan coil and a fresh air fan, so that the TVOC has great significance in improving indoor human comfort level and building energy conservation and emission reduction, and has wide application scenes.
The existing indoor environment detection device has the following defects: (1) The power supply and communication modes of the equipment are single, only one power supply and communication mode is provided frequently, and high requirements are placed on the installation position and data transmission of the detection device indoors; (2) The detection device can not be linked with other indoor equipment according to the detection result.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model provides an indoor environment detection device to the equipment power supply and the communication mode that solve current indoor environment detection device are single, require higher technical problem to detection device's installation.
In order to achieve the purpose, the utility model adopts the technical proposal that:
the utility model provides an indoor environment detection device, which comprises an MCU unit, a power supply unit, a communication unit, a storage unit, a gas sensor and a temperature and humidity sensor, wherein the power supply unit, the communication unit, the storage unit, the gas sensor and the temperature and humidity sensor are connected with the MCU unit;
the gas sensor is used for collecting gas concentration data of an indoor environment and sending the gas concentration data of the indoor environment to the MCU; wherein the gas concentration data of the indoor environment comprises CO 2 Concentration data and TVOC concentration data;
the temperature and humidity sensor is used for collecting temperature and humidity data of an indoor environment and sending the temperature and humidity data of the indoor environment to the MCU;
the MCU is used for sending the gas concentration data of the indoor environment and the temperature and humidity data of the indoor environment to the storage unit;
the storage unit is used for receiving and storing gas concentration data of the indoor environment and temperature and humidity data of the indoor environment;
the power supply unit is used for providing a unit for the MCU unit, the communication unit, the storage unit, the gas sensor and the temperature and humidity sensor; the power supply unit comprises an AC-DC module and a MicroUSB module A; the AC-DC module and the MicroUSB module A are respectively used for selectively connecting with different types of external power supplies;
the communication unit is used for being connected with external equipment to realize data transmission between the MCU unit and the external equipment; the communication unit comprises an RS-485 module, a WiFi module, an RJ-45 module and a MicroUSB module B; and the RS-485 module, the WiFi module, the RJ-45 module and the MicroUSB module B are used for establishing communication connection with different types of external equipment.
Further, the device also comprises an alarm unit; the alarm unit is connected with the MCU unit;
the MCU unit is also used for comparing the gas concentration data of the indoor environment or the temperature and humidity data of the indoor environment with a preset threshold value and outputting an alarm instruction according to a comparison result;
and the alarm unit is used for receiving and responding to the alarm instruction to generate alarm information.
Further, the LCD display unit is also included; the LCD display unit is connected with the MCU unit;
the MCU unit is also used for sending the gas concentration data of the indoor environment and the temperature and humidity data of the indoor environment to the LCD display unit;
and the LCD display unit is used for displaying the gas concentration data of the indoor environment and the temperature and humidity data of the indoor environment.
Further, the MCU unit comprises a main control chip; the model of the main control chip is STM32F107RBT6.
Furthermore, two AN interfaces are reserved on the main control chip; the two AN interfaces are respectively connected with external equipment; the first AN interface is used for the main control chip to send AN analog signal or a digital signal to the external equipment; and the second AN interface is used for receiving the analog signal or the digital signal sent by the external equipment by the main control chip.
Further, the gas sensor adopts an SGP30 sensor; the temperature and humidity sensor is a DHT20 sensor.
Further, the memory unit includes a memory chip; the memory chip is a W25Q chip, and the W25Q chip is connected with the MCU unit in a standard SPI mode.
Furthermore, the WiFi module is connected with a serial port of the MCU.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an indoor environment detection device realizes the CO to indoor environment through setting up gas sensor and temperature and humidity sensor 2 The method comprises the steps of collecting concentration data, TVOC concentration data and temperature and humidity data in real time, and storing the data by using a storage unit; the power supply unit comprises an AC-DC module and a MicroUSB module A, and can supply power by adopting an indoor alternating current power supply or a MicroUSB charger, and the power supply mode is flexible, reliable, convenient and safe; the communication unit comprises an RS-485 module, a WiFi module, an RJ-45 module and a MicroUSB module B, has multiple communication modes, meets the requirement of selecting a convenient and stable communication mode according to indoor actual conditions, and greatly reduces the requirement of the equipment on indoor power supply and data transmission.
Furthermore, by arranging the alarm unit, the real-time alarm can be carried out on the gas concentration and the temperature and humidity of the indoor environment.
Furthermore, the display of gas concentration data of the indoor environment and temperature and humidity data of the indoor environment is realized by arranging the LCD display unit.
Furthermore, two AN interfaces are reserved on the main control chip and used for sending analog/digital signals outwards and receiving external analog/digital signals, and the start and stop of indoor fan coils, fresh air fans and other equipment can be controlled according to indoor environment detection results, so that the comfort level is improved, and energy is saved.
Drawings
Fig. 1 is a block diagram of an indoor environment detection device according to the present invention;
fig. 2 is a circuit diagram of a microsusb module according to the present invention;
fig. 3 is a circuit diagram of a linear regulator module according to the present invention;
FIG. 4 is a circuit diagram of the MCU unit in the present invention;
fig. 5 is a circuit diagram of an RS-485 module of the present invention;
fig. 6 is a circuit diagram of an RJ-45 module according to the present invention;
fig. 7 is a circuit diagram of a memory cell according to the present invention;
fig. 8 is a circuit diagram of an alarm unit in the present invention;
fig. 9 is a circuit diagram of a gas sensor according to the present invention;
fig. 10 is a circuit diagram of the temperature and humidity sensor of the present invention;
fig. 11 is a driving circuit diagram of the LCD display unit according to the present invention.
The device comprises a MCU unit 1, a power supply unit 2, a communication unit 3, a storage unit 4, an alarm unit 5, a gas sensor 6, a temperature and humidity sensor 7 and an LCD display unit 8.
Detailed Description
In order to make the technical problem solved by the present invention, technical solution and beneficial effect are more clearly understood, and the following specific embodiments are right for the present invention to proceed further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in the attached drawing 1, the utility model provides an indoor environment detection device, including MCU unit 1, and with power supply unit 2, communication unit 3, memory cell 4, alarm unit 5, gas sensor 6, temperature and humidity sensor 7 and LCD display element 8 that MCU unit 1 links to each other.
The MCU unit 1 is used for receiving and transmitting gas concentration data of an indoor environment and temperature and humidity data of the indoor environment; wherein the gas concentration data of the indoor environment comprises CO 2 Concentration data and TVOC concentration data; the indoor environment monitoring system is also used for comparing the gas concentration data of the indoor environment or the temperature and humidity data of the indoor environment with a preset threshold value and outputting an alarm instruction according to the comparison result; the power supply unit 2 is used for providing power for the MCU unit 1, the communication unit 3, the storage unit 4, the alarm unit 5, the gas sensor 6, the temperature and humidity sensor 7 and the LCD display unit 8; the power supply unit 2 comprises an AC-DC module and a MicroUSB module A; the AC-DC module and the MicroUSB module A are respectively used for selectively connecting with different types of external power supplies; the power supply unit 2 further comprises a voltage stabilizing module; the voltage stabilizing module is used for providing stable direct current output voltage; the communication unit 3 is used for connecting with external equipment to realize the MCU unit 1Data transmission with an external device; the communication unit 3 comprises an RS-485 module, a WiFi module, an RJ-45 module and a MicroUSB module B; the RS-485 module, the WiFi module, the RJ-45 module and the MicroUSB module B are used for establishing communication connection with different types of external equipment; the RS-485 module, the WiFi module, the RJ-45 module and the MicroUSB module B are selectively connected with different types of external equipment; the storage unit 4 is used for receiving and storing the gas concentration data of the indoor environment and the temperature and humidity data of the indoor environment; the alarm unit 5 is used for receiving and responding to the alarm instruction and generating alarm information; the gas sensor 6 is used for collecting gas concentration data of an indoor environment and sending the gas concentration data of the indoor environment to the MCU unit 1; the temperature and humidity sensor 7 is used for collecting temperature and humidity data of an indoor environment and sending the temperature and humidity data of the indoor environment to the MCU unit 1; and the LCD display unit 8 is used for receiving and displaying the gas concentration data of the indoor environment and the temperature and humidity data of the indoor environment.
The utility model discloses in, microUSB module A with MicroUSB module B adopts a MicroUSB interface to realize, the MicroUSB interface can realize data communication and power supply function simultaneously.
The utility model discloses in, gas sensor 6 and temperature and humidity sensor 7 all are connected with MCU unit 1 for the humiture data, the CO of the indoor environment that will gather 2 The concentration data and the TVOC concentration data are transmitted to the MCU unit 1 in real time; the temperature and humidity sensor is a DHT20 sensor and is used for acquiring the temperature and humidity in the indoor environment in real time, performing analog-to-digital conversion on the acquired analog signals and then transmitting the analog signals to the MCU unit 1; the gas sensor is an SPG30 sensor and is used for collecting CO in indoor air in real time 2 The concentration data and the TVOC concentration data send the collected data to the MCU unit 1; the DHT20 sensor and the SGP30 sensor are communicated with the MCU unit 1 in an I2C communication mode, and the DHT and SGP sensor is high in acquisition precision, rapid in response and strong in anti-interference capability.
The main control chip of the MCU unit 1 adopts an STM32F107RBT6 chip, and the periphery of the STM32F107RBT6 chip is builtA circuit, as shown in FIG. 2; the main control chip can acquire temperature and humidity data of the indoor environment acquired by the temperature and humidity sensor 7 and CO acquired by the gas sensor 6 2 The concentration data and the TVOC concentration data are sent to the storage unit 4 for storage, the collected data are compared with a set threshold value, and an alarm instruction is output according to the comparison result; specifically, when the continuous multiple sampling exceeds a set threshold value, the MCU unit 1 sends an alarm instruction to the alarm unit 5 to alarm; the alarm is released when the next detection of the value within the threshold value; meanwhile, the MCU unit 1 can process currently collected indoor environment data and give a human body comfort evaluation result; the human body comfort evaluation result comprises excellent comfort, good comfort, moderate comfort and poor comfort; the collected data and the human body comfort evaluation result are sent to an LCD display unit 8 for display; the main control chip reserves two AN interfaces and can be linked with other control systems according to the acquired indoor environment data condition; the other control systems comprise a fresh air fan and an indoor fan coil; for example: when the gas sensor detects CO 2 When the concentration data and the TVOC concentration data exceed the standard, the main control chip sends out an instruction signal to control the new fan to be opened, and when the temperature and humidity sensor detects that the temperature and humidity are not in a set value interval, the main control chip sends out an instruction signal to control the indoor fan coil to be opened or closed.
An LCD display unit 8 including an LCD driving circuit and an LCD screen; the LCD display unit 8 is used for receiving data collected by the gas sensor and the temperature and humidity sensor; the LCD display unit 8 is designed with a backlight circuit, so that data can be conveniently checked at night or in case of insufficient light, and the device shell is provided with keys, so that an operator can press the control keys to select and display temperature and humidity data and CO of the current indoor environment 2 And the concentration data, the TVOC concentration data and the human comfort level evaluation are used for realizing friendly human-computer interaction.
The storage unit 4 is connected with the MCU unit 1 and used for storing data; the data collected by the gas sensor 6 and the temperature and humidity sensor 7 are stored in the storage unit 4 after being processed by the main control chip; the storage unit 4 comprises a storage chip, and the storage chip is a W25Q chip; the W25Q chip is connected with the main control chip in a standard SPI mode, and data cannot be lost after power failure.
In the indoor environment detection device of the present invention, the power supply unit includes an AC-DC module, a micro usb module a and a voltage stabilizing module, i.e. the power supply unit provides two different power supply modes; the AC-DC module is used for filtering and rectifying alternating current 220V into direct current 5V; the MicroUSB module A is used for providing direct current 5V through a USB charger; and the voltage stabilizing module is used for stabilizing the direct current 5V output by the AC-DC module and the MicroUSB module A into direct current 3.3V, and further supplying power to the MCU unit 1, the communication unit 3, the storage unit 4, the alarm unit 5, the gas sensor 6, the temperature and humidity sensor 7 and the LCD display unit 8, so that convenience and reliability in power supply are ensured.
In the present invention, the communication unit 3 is used for transmitting data stored in the storage chip to the outside and sending an instruction to the main control chip for debugging and the like; the communication unit 3 comprises an RS-485 module, a WiFi module, an RJ-45 module and a MicroUSB module B; the WiFi module is connected with a serial port of a main control chip of the MCU unit 1, and guarantees follow-up cloud service and APP terminal service; the detection device has various communication modes, and is convenient for remotely checking data, sending detection commands and the like.
As shown in fig. 2, the microsusb module a includes a chip U1, a resistor R2, a resistor R3, a diode D1, and a diode D2; pin 1 and pin 3 of the chip U1 are respectively connected with a data negative line and a data positive line of the MicroUSB female socket, pin 2 of the chip U1 is grounded, pin 4 and pin 6 of the chip U1 are respectively connected with pin 45 and pin 44 of a main control chip U5, and pin 5 of the chip U1 is connected with a power supply positive electrode of the MicroUSB female socket; one end of the resistor R1 is connected with a pin 5 of the chip U1, the other end of the resistor R1 is connected with one end of the resistor R2 and a pin 53 of the main control chip U5, and the other end of the resistor R2 is grounded; one end of the resistor R3 is connected with a pin 4 of the chip U1, and the other end of the resistor R3 is connected with a pin 39 of the main control chip U5; the anode of the diode D1 is connected with the anode of a power supply of the MicroUSB female socket, and the cathode of the diode D1 is connected with a pin 1 of the linear voltage stabilizing chip U2; the anode of the diode D2 is connected with DC5V output by the AC-DC module, and the cathode of the diode D2 is connected with a pin 1 of the linear voltage stabilizing chip U2.
As shown in fig. 3, the voltage stabilizing module includes a voltage stabilizing chip U2, a capacitor C1, a capacitor C2, and a capacitor C3; a pin 3 of the voltage stabilizing chip U2 is connected with a pin 1, the pin 2 of the voltage stabilizing chip U2 is grounded, and a pin 4 of the voltage stabilizing chip U2 is grounded through a capacitor C2; a pin 5 of the voltage stabilizing chip U2 supplies power to the storage unit 4, the MCU unit 1, the communication unit 3, the LCD display unit 8, the temperature and humidity sensor 7 and the gas sensor 6; one end of the capacitor C1 is connected with a pin 1 of the voltage stabilizing chip U2, and the other end of the capacitor C1 is grounded; one end of the capacitor C3 is connected with a pin 5 of the voltage stabilizing chip U2, and the other end of the capacitor C3 is grounded.
As shown in fig. 4, the MCU unit includes a main control chip U5, a crystal oscillator Y1, a resistor R7, a capacitor C10, and a capacitor C11, and the pin 12, the pin 18, the pin 31, the pin 47, the pin 60, and the pin 63 of the main control chip U5 are grounded; two ends of the resistor R7 are respectively connected with a pin 5 and a pin 6 of the main control chip U5; two ends of the crystal oscillator Y1 are respectively connected with a pin 5 and a pin 6 of a main control chip U5; a pin 6 of the main control chip U5, one end of a resistor R7 and one end of a crystal oscillator Y1 are grounded through a capacitor C10; the pin 6 of the main control chip U5, the other end of the resistor R7 and the other end of the crystal oscillator Y1 are grounded through a capacitor C11; pins 26 and 27 of the main control chip U5 are designed AN interfaces.
As shown in fig. 5, the RS-485 module includes a chip U6, a resistor R24, a resistor R25, a resistor R26, and a capacitor C13; pin 1, pin 2 and pin 4 of the chip U6 are connected to pin 52, pin 50 and pin 51 of the main control chip U5, respectively; pin 2 of chip U6 is connected with pin 3, and pin 5 of chip U6 is grounded; a pin 8 of the chip U6 is connected with DC5V output by the AC-DC module; a pin 6 and a pin 7 of the chip U6 are connected with 485 signals; two ends of the resistor R24 are connected with a pin 7 and a pin 8 of the chip U6; two ends of the resistor R25 are respectively connected with a pin 6 and a pin 7 of the chip U6; two ends of the resistor R26 are respectively connected with a pin 5 and a pin 6 of the chip U6; one end of the capacitor C13 is connected to the pin 8 of the chip U6, and the other end of the capacitor C13 is grounded.
As shown in fig. 6, the RJ-45 module includes a chip U7, a crystal oscillator Y2, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, and a capacitor C23; pin 7, pin 20, pin 33, pin 20, and pin 47 of chip U7 are all grounded; a pin 14 of the chip U7 is connected with a pin 24 of the main control chip U5 through a resistor R12; a pin 16 of the chip U7 is connected with a pin 25 of a main control chip U5 through a resistor R13; pin 22, pin 23, pin 24, pin 27, pin 30, pin 31 and pin 36 of the chip U7 are respectively connected with pin 15, pin 33, pin 34, pin 30, pin 9, pin 16 and pin 23 of the main control chip U5; pin 29, pin 39, pin 40, pin 42, pin 43, pin 46, and pin 48 of the chip U7 are grounded via a capacitor C23, a resistor R10, a capacitor C22, a capacitor C20, a capacitor C19, a resistor R9, and a capacitor C21, respectively; a pin 29 and a pin 31 of the chip U7 are respectively connected with the voltage stabilizing module through a resistor R14 and a resistor R11; pin 1, pin 2, pin 4 and pin 5 of the chip U7 are all connected with the network port transformer; and two ends of the resistor R8 and the crystal oscillator Y2 are connected with a pin 42 and a pin 43 of the chip U7.
As shown in fig. 7, the memory unit 4 includes a memory chip U3 and a capacitor C4; a pin 7 of the chip U3 is grounded through a capacitor C4, and a pin 4 of the chip U3 is grounded; pin 1, pin 2, pin 5 and pin 6 of the chip U3 are connected to pin 54, pin 55, pin 56 and pin 57 of the main control chip U5, respectively; pin 3 and pin 8 of chip U3 are both connected to pin 5 of chip U2.
As shown in fig. 8, the alarm unit 5 includes a buzzer U10, a transistor Q1, a diode D3, a resistor R4, and a resistor R5; the positive electrode of the buzzer U10 is connected with a pin 5 of the chip U2, and the negative electrode of the buzzer U10 is connected with the collector electrode of the triode Q1; the anode of the diode D3 is connected with the cathode of the buzzer U10, and the cathode of the diode D3 is connected with the anode of the buzzer U10; one end of the resistor R5 is connected with a pin 41 of the main control chip U5, and the other end of the resistor R5 is connected with a base electrode of the triode Q1; the emitting electrode of the triode Q1 is grounded; two ends of the resistor R4 are respectively connected with the base electrode of the triode Q1 and the emitting electrode of the triode Q1; when an alarm instruction of the MCU unit 1 is received, the triode Q1 is conducted, the buzzer U10 works to give an alarm to prompt that the current indoor environment parameters exceed the standard, and when the alarm signal of the MCU unit 1 is at a low level, the buzzer U10 stops giving the alarm.
As shown in fig. 9, the gas sensor 6 includes a detection chip U8, a resistor R27, a resistor R28, a resistor R29, a resistor R30, and a capacitor C24; pin 3 and pin 6 of the detection chip U8 are connected to pin 59 and pin 58 of the main control chip U5, respectively; pin 2 and pin 4 of the chip U8 are grounded, and pin 5 and pin 1 of the chip U8 are both connected with the non-ground end of the resistor R30; the two ends of the resistor R27 are respectively connected with a pin 5 and a pin 6 of the detection chip U8; two ends of the resistor R28 are respectively connected with a pin 1 and a pin 3 of the detection chip U8; pin 5 of the voltage stabilization chip U2 is grounded through a resistor R29 and a resistor R30 in sequence.
As shown in fig. 10, the temperature and humidity sensor 7 includes a detection chip U9; a pin 1 of the detection chip U9 is connected with a pin 5 of the voltage stabilization chip U2; the pin 3 of the detection chip U9 is grounded; pin 2 and pin 4 of the detection chip U9 are connected to pin 59 and pin 58 of the main control chip U5, respectively.
As shown in fig. 11, the LCD driving circuit includes an LCD driving chip U4, a capacitor C12, and a resistor R18; pin 1, pin 3, pin 4 and pin 5 of the LCD driver chip U4 are connected to pin 10, pin 14, pin 20 and pin 22 of the main control chip U5, respectively; a pin 6 of the LCD driving chip U4 is grounded, and a pin 8 of the LCD driving chip U4 is connected with a pin 5 of the voltage stabilizing chip U2; a non-empty pin of the LCD driving chip U4 is connected with the LCD screen; two ends of the resistor R18 are respectively connected with a pin 8 and a pin 9 of the LCD driving chip U4; one end of the capacitor C12 is connected with the pin 8 of the LCD driving chip U4, and the other end of the capacitor C12 is grounded.
The utility model discloses an indoor environment detection device, a power supply unit comprises an AC-DC module and a MicroUSB module A; the communication unit comprises an RS-485 module, a WiFi module, an RJ-45 module and a MicroUSB module B; two AN interfaces are reserved on a main control chip in the MCU unit and used for receiving external input signals and sending control signals outwards; the utility model discloses can satisfy and measure temperature, humidity, CO in the room 2 The TVOC parameter is detected, when the parameter exceeds a set range, the TVOC parameter gives an alarm and is linked with other equipment, the TVOC parameter detection device is high in detection precision, good in real-time performance, flexible in layout and diverse in power supply and data communication modes, and user requirements are met.
The above embodiment is only one of the embodiments that can realize the technical solution of the present invention, and the scope of the present invention is not limited only by the embodiment, but also includes any variations, substitutions and other embodiments that can be easily conceived by those skilled in the art within the technical scope of the present invention.
Claims (8)
1. The indoor environment detection device is characterized by comprising an MCU (microprogrammed control unit) unit (1), a power supply unit (2), a communication unit (3), a storage unit (4), a gas sensor (6) and a temperature and humidity sensor (7), wherein the power supply unit (2), the communication unit (3), the storage unit (4), the gas sensor (6) and the temperature and humidity sensor are connected with the MCU unit (1);
the gas sensor (6) is used for collecting gas concentration data of an indoor environment and sending the gas concentration data of the indoor environment to the MCU (1); wherein the gas concentration data of the indoor environment comprises CO 2 Concentration data and TVOC concentration data;
the temperature and humidity sensor (7) is used for collecting temperature and humidity data of an indoor environment and sending the temperature and humidity data of the indoor environment to the MCU unit (1);
the MCU unit (1) is used for sending the gas concentration data of the indoor environment and the temperature and humidity data of the indoor environment to the storage unit (4);
the storage unit (4) is used for receiving and storing gas concentration data of the indoor environment and temperature and humidity data of the indoor environment;
the power supply unit (2) is used for providing units for the MCU unit (1), the communication unit (3), the storage unit (4), the gas sensor (6) and the temperature and humidity sensor (7); the power supply unit (2) comprises an AC-DC module and a MicroUSB module A; the AC-DC module and the MicroUSB module A are respectively used for selectively connecting with different types of external power supplies;
the communication unit (3) is used for connecting with external equipment to realize data transmission between the MCU unit (1) and the external equipment; the communication unit (3) comprises an RS-485 module, a WiFi module, an RJ-45 module and a MicroUSB module B; and the RS-485 module, the WiFi module, the RJ-45 module and the MicroUSB module B are used for establishing communication connection with different types of external equipment.
2. An indoor environment detection device according to claim 1, characterized by further comprising an alarm unit (5); the alarm unit (5) is connected with the MCU unit (1);
the MCU unit (1) is also used for comparing the gas concentration data of the indoor environment or the temperature and humidity data of the indoor environment with a preset threshold value and outputting an alarm instruction according to a comparison result;
and the alarm unit (5) is used for receiving and responding to the alarm instruction and generating alarm information.
3. An indoor environment detection apparatus according to claim 1, further comprising an LCD display unit (8); the LCD display unit (8) is connected with the MCU unit (1);
the MCU unit (1) is also used for sending the gas concentration data of the indoor environment and the temperature and humidity data of the indoor environment to the LCD display unit (8);
and the LCD display unit (8) is used for displaying the gas concentration data of the indoor environment and the temperature and humidity data of the indoor environment.
4. The indoor environment detection device according to claim 1, wherein the MCU unit (1) comprises a main control chip; the model of the main control chip is STM32F107RBT6.
5. The indoor environment detection device according to claim 4, wherein two AN interfaces are reserved on the main control chip; the two AN interfaces are respectively connected with external equipment; the first AN interface is used for the main control chip to send AN analog signal or a digital signal to the external equipment; and the second AN interface is used for receiving the analog signal or the digital signal sent by the external equipment by the main control chip.
6. An indoor environment detection device according to claim 1, wherein the gas sensor (6) is a SGP30 sensor; the temperature and humidity sensor (7) is a DHT20 sensor.
7. An indoor environment detection apparatus according to claim 1, wherein the storage unit (4) comprises a memory chip; the storage chip is a W25Q chip, and the W25Q chip is connected with the MCU unit (1) in a standard SPI mode.
8. An indoor environment detection device according to claim 1, wherein the WiFi module is connected with a serial port of the MCU unit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221742570.4U CN217763847U (en) | 2022-07-07 | 2022-07-07 | Indoor environment detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221742570.4U CN217763847U (en) | 2022-07-07 | 2022-07-07 | Indoor environment detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217763847U true CN217763847U (en) | 2022-11-08 |
Family
ID=83871715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221742570.4U Active CN217763847U (en) | 2022-07-07 | 2022-07-07 | Indoor environment detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217763847U (en) |
-
2022
- 2022-07-07 CN CN202221742570.4U patent/CN217763847U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107608318A (en) | A kind of intelligent home control system based on NB IOT | |
| CN203799031U (en) | Multifunctional environment monitoring instrument | |
| CN103760849A (en) | Home monitoring and controlling system based on wireless sensor network | |
| CN207731451U (en) | A kind of university dormitory safety monitoring system | |
| CN206757361U (en) | A kind of Indoor Environment Detection control system based on internet | |
| CN106129497B (en) | A kind of power battery intelligent monitor system | |
| CN217763847U (en) | Indoor environment detection device | |
| CN210639447U (en) | Intelligent device of remote control (window) curtain | |
| CN205924001U (en) | Solitary old man remote monitoring system | |
| CN209763424U (en) | Automatic control system for air conditioner in classroom | |
| CN210604825U (en) | Intelligent management system for safe electricity utilization of student apartment | |
| CN110572791B (en) | Information transmission system based on LoRa technology | |
| CN108803368A (en) | A kind of intelligent home control device based on WIFI module | |
| CN208861458U (en) | Data concentrator based on Internet of Things low-power consumption mechanics of communication | |
| CN208190836U (en) | A kind of image pick-up detection device based on EnOcean technology | |
| CN210038018U (en) | Intelligent electric power monitoring device based on Internet of things | |
| CN203980553U (en) | Distributed indoor humidification control system | |
| CN210573258U (en) | Intelligent home monitoring device | |
| CN109240118A (en) | A kind of SCM Based Internet of Things long-distance intelligent appliance control system | |
| CN108073083A (en) | A kind of intelligent domestic system based on wireless sensor network | |
| CN205208853U (en) | Indoor environmental security remote control system | |
| CN212256043U (en) | Voice robot of intelligence house | |
| CN213027770U (en) | Multifunctional air detection equipment | |
| CN215067769U (en) | Energy-saving intelligent control system of building | |
| CN109445295A (en) | A kind of autonomous smart home system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |