CN103529776A - Intelligent house microenvironment detection control system - Google Patents

Abstract

A smart home micro-environment detection and control system, including: a host, slaves and electrical appliance controllers that communicate wirelessly with the host respectively, wherein the host detects indoor temperature, humidity, and gas conditions, and according to the detected indoor Temperature, humidity, gas, control electrical appliances The control machine starts the indoor electrical appliances to work, and displays and alarms the indoor temperature, humidity, and gas, and sends an alarm message to the preset mobile phone. The slave machine is used to detect the internal gas condition, and Wirelessly transmit to the host, and the electrical appliance control machine wirelessly receives the signal from the host to start the indoor electrical appliances to start the corresponding electrical appliances to work. The invention can comprehensively detect and adjust the indoor environment, has high integration, small volume, convenient use, low cost and extremely low power consumption.

Description

Smart home micro-environment detection and control system

technical field

The invention relates to an environment detection and adjustment device. In particular, it relates to a smart home micro-environment detection and control system based on a C8051F020 single-chip microcomputer as the main control chip.

Background technique

Surveys show that modern people spend an average of 90% of their time living and working indoors, and 65% of their time at home. However, the indoor air pollution level of many civil and commercial buildings is 4-10 times that of outdoor air pollution, and some even exceed 100 times. Indoor environmental pollution has caused the increase of global population morbidity and mortality, and has been listed as one of the five most harmful environmental factors to public health. In addition to indoor air pollution, factors such as indoor temperature, humidity, and light will not cause direct damage to the human body, but they also affect living comfort. People hope that the environment of their work, study and life has sufficient light, fresh air and suitable temperature. Therefore, strengthening the maintenance of the indoor environment is also very important to ensure good health.

At the same time, with the continuous improvement of living standards and people's health awareness, the state pays more and more attention to indoor environmental pollution, making indoor environmental monitoring and governance gradually develop into a new national economic industry. At the same time, the relevant standards issued by the state It provides a good criterion for us to measure the indoor environment.

However, people usually do not notice the pollution clearly indoors, and professional monitoring is not friendly to the people in all aspects. The threshold for indoor environmental monitoring and adjustment is very high, and it is not widely used. Adjustment equipment is extremely lacking on the market.

Contents of the invention

The technical problem to be solved by the present invention is to provide a smart home micro-environment detection and control system that can automatically detect and adjust the indoor living environment, realize real-time detection, adjustment, and recording, and create a healthy and comfortable living environment for people.

The technical solution adopted in the present invention is: a smart home micro-environment detection and control system, including: a host, slaves and electrical appliance controllers that communicate wirelessly with the host respectively, wherein the host detects indoor temperature, humidity, Gas conditions, according to the detected indoor temperature, humidity, gas, control the electrical control machine to start the indoor electrical appliances to work, and display and alarm the indoor temperature, humidity, gas and send alarm messages to the preset mobile phone. The machine is used to detect the condition of the gas in the interior, and wirelessly transmits the signal to the host, and the electrical control unit wirelessly receives the signal from the host to start the indoor electrical appliances, and starts the corresponding electrical appliances to work.

The host includes: a host control circuit, a gas sensor module, a human body sensing module, an alarm buzzer, a liquid crystal display, a voice recognition/synthesis module, a temperature and humidity sensor module and a Bluetooth sensor module respectively connected to the host control circuit. integrated circuit, host wireless transmission module and antenna, GSM/GPRS mobile data sending and receiving antenna and buttons, and are also provided with the host control circuit, gas sensor module, human body sensing module, alarm buzzer, liquid crystal display, Speech recognition/synthesis module, temperature and humidity sensor and bluetooth integrated circuit, host wireless transmission module and antenna, GSM/GPRS mobile data sending and receiving antenna and buttons are connected to host power module for providing power, and the host power module is connected through the host The main switch is respectively connected to the usb power supply interface and the mains power supply interface.

An SD card storage module is also connected to the host control circuit.

The host power supply module, host control circuit, SD card storage module, temperature and humidity sensor module and bluetooth integrated circuit are arranged in the host housing, and the usb power supply interface, mains power supply interface, alarm buzzer, liquid crystal display , host main switch, host wireless transmission module and antenna, GSM/GPRS mobile data sending and receiving antenna, gas sensor module, voice recognition/synthesis module, buttons, liquid crystal display and human body induction module are respectively arranged on the surface of the host housing.

The gas sensor module includes MQ-2 smoke sensor and MQ-135 gas pollution sensor.

The slave machine includes a slave machine control circuit, a slave machine wireless transmission module and an antenna and a gas sensor module respectively connected to the slave machine control circuit, and the slave machine main switch is respectively connected to the slave machine control circuit, and the slave machine wireless transmission module is connected to the slave machine control circuit. Lithium battery and power module for power supply of module and antenna and gas sensor module.

The lithium battery, the power module and the slave control circuit are arranged in the slave casing, and the slave main switch, the slave wireless transmission module, the antenna and the gas sensor module are arranged on the surface of the slave casing.

The electrical control machine includes: an electrical switch control circuit, a relay control module connected to the electrical switch control circuit, a control machine wireless transmission module, an antenna and a work indicator light, and a wireless switch control circuit connected to the control machine respectively. The power supply module of the transmission module and the antenna, the relay control module is connected to the control electrical interface, and the power input terminal of the power supply module and the power supply input terminal of the relay control module are connected to the working power supply interface.

The electrical switch control circuit, the relay control module and the power supply module are set in the electrical control machine housing, and the control machine wireless transmission module and antenna, the working indicator light, the working power interface and the control electrical interface are respectively set in the electrical control machine on the surface of the shell.

The smart home micro-environment detection and control system of the present invention has the following beneficial effects:

1. Full-featured. The invention can comprehensively detect and adjust the indoor environment, filling the gaps in related fields, and is a rare device on the market that integrates air quality detection, alarm and automatic targeted adjustment. Only one set of equipment is needed to meet the livable environment needs.

2. Portable and easy to use. The host and slave of the present invention have a high degree of integration, small size, and the weight after packaging is only 300 grams, and there is still a lot of room for reducing the weight after further improving the integration; the invention is easy to use, and only needs to put the slave The machine is placed indoors where it will not be disturbed, and it can be used after a simple initialization of the host.

3. Inexpensive and low power consumption. Most professional testing equipment on the market is expensive and consumes a lot of power, making it difficult for ordinary families to use. The invention has high integration, low cost, extremely low power consumption, can be driven by a lithium battery, and greatly reduces the threshold for use.

Description of drawings

Fig. 1 is the overall structure block diagram of the present invention;

Fig. 2 is a structural schematic diagram of the host housing of the present invention;

Fig. 3 is a block diagram of the host circuit of the present invention;

Fig. 4 is a schematic diagram of the structure of the slave machine housing of the present invention;

Fig. 5 is a block diagram of the slave circuit of the present invention;

Fig. 6 is a schematic diagram of the housing structure of the electrical control machine of the present invention;

Fig. 7 is a block diagram of the circuit structure of the electrical appliance control machine of the present invention.

in the picture

1: host power module 2: usb power supply interface

3: Mains power supply interface 4: Alarm buzzer

5: Host main switch 6: Host wireless transmission module and antenna

7: GSM/GPRS mobile data sending and receiving antenna

8: Gas sensor module 9: Speech recognition/synthesis module

10: Button 11: LCD screen

12: Temperature and humidity sensor module and Bluetooth integrated circuit

13: Human body sensing module 14: Host control circuit

15: Lithium battery and power module 16: Master switch of slave machine

17: Slave wireless transmission module and antenna 18: Gas sensor module

19: Slave control circuit 20: Electrical switch control circuit

21: Relay control module 22: Control machine wireless transmission module and antenna

23: Working indicator light 24: Working power interface

25: Control electrical interface 26: Power module

27: SD card storage module 28: Host housing

29: slave machine housing 30: electrical control machine housing

Detailed ways

The smart home micro-environment detection and control system of the present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings.

As shown in Figure 1, the smart home micro-environment detection and control system of the present invention includes: a host A, a slave B and an electrical appliance controller C that communicate wirelessly with the host A respectively, wherein the host A detects the indoor temperature , humidity, and gas conditions, according to the detected indoor temperature, humidity, and gas, control the electrical appliance controller C to start the indoor electrical appliances to work, and display and alarm the indoor temperature, humidity, and gas, and send an alarm message to the preset mobile phone, The slave machine B is used to detect the gas condition in the room, and wirelessly transmits it to the host A, and the electrical appliance control unit C wirelessly receives the signal from the host A to start the indoor electrical appliances, and starts the corresponding electrical appliances to work.

As shown in Figure 3, the host A includes: a host control circuit 14 composed of a C8051F020 single-chip microcomputer, a gas sensor module 8 connected to the host control circuit 14, a human body sensing module 13, and an alarm buzzer 4 , liquid crystal display screen 11, voice recognition/synthesis module 9, temperature and humidity sensor module and bluetooth integrated circuit 12, host computer wireless transmission module and antenna 6, GSM/GPRS mobile data sending and receiving antenna 7 and button 10, also be provided with respectively and all The host control circuit 14, gas sensor module 8, human body sensing module 13, alarm buzzer 4, liquid crystal display 11, speech recognition/synthesis module 9, DHT11 temperature and humidity sensor and Bluetooth integrated circuit 12, host wireless transmission module and Antenna 6, GSM/GPRS mobile data sending and receiving antenna 7 and button 10 are connected to host power module 1 for providing power, and said host power module 1 is connected to usb power supply interface 2 and mains power supply interface respectively through host master switch 5 3. An SD card storage module 27 is also connected to the host control circuit 14 .

As shown in Figure 2, the host power supply module 1, the host control circuit 14, the SD card storage module 27, the temperature and humidity sensor module and the bluetooth integrated circuit 12 are arranged in the host housing 28, and the usb power supply interface 2, Mains power supply interface 3, alarm buzzer 4, liquid crystal display 11, host main switch 5, host wireless transmission module and antenna 6, GSM/GPRS mobile data sending and receiving antenna 7, gas sensor module 8, voice recognition/synthesis module 9. The buttons 10 , the liquid crystal display 11 and the human body sensing module 13 are respectively arranged on the surface of the host housing 28 . The gas sensor module 8 includes MQ-2 smoke sensor and MQ-135 gas pollution sensor.

As shown in Figure 5, described slave machine B comprises slave machine control circuit 19, the slave machine wireless transmission module and antenna 17 and gas sensor module 18 that are connected with slave machine control circuit 19 respectively, and through slave machine main switch 16 respectively connects the lithium battery and the power supply module 15 for power supply of the slave control circuit 19, the slave wireless transmission module and the antenna 17 and the gas sensor module 18.

As shown in Figure 4, described lithium battery and power supply module 15 and slave control circuit 19 are arranged in slave housing 29, and described slave main switch 16, slave wireless transmission module and antenna 17 and gas sensor The module 18 is arranged on the surface of the slave housing 29 .

As shown in Figure 7, the electrical appliance control machine C includes: an electrical switch control circuit 20, a relay control module 21 connected to the electrical switch control circuit 20, a control machine wireless transmission module, an antenna 22 and a working indicator light 23 , and the power supply module 26 respectively connected to the electrical switch control circuit 20 and the control machine wireless transmission module and the antenna 22, the relay control module 21 is connected to the control electrical interface 25, the power input terminal of the power supply module 26 and the relay control module 21 The power input end is connected to the working power interface 24 .

As shown in Figure 6, the electrical switch control circuit 20, the relay control module 21 and the power supply module 26 are arranged in the electrical appliance control machine housing 30, the wireless transmission module of the control machine and the antenna 22, the working indicator light 23, The working power interface 24 and the control electrical interface 25 are respectively arranged on the surface of the electrical control machine housing 30 .

The smart home micro-environment detection and control system of the present invention uses a C8051F020 single-chip microcomputer as a host control circuit to control the display of recorded data on the liquid crystal display, the opening of the SD card storage module, the alarm buzzer and the control of the keyboard. Among them, the liquid crystal display adopts 12864 liquid crystal, which has 8-bit parallel interface mode, and contains a dot-matrix graphic liquid crystal display module of the national standard first-level and second-level simplified Chinese character library; its display resolution is 128×64, and 8192 16* built-in 16-point Chinese characters, and 128 16*8-point ASCII character sets. With the flexible interface mode and simple and convenient operation instructions of this module, it can form an all-Chinese human-computer interaction graphic interface. It can display Chinese characters in 8×4 lines and 16×16 dot matrix. Graphic display can also be completed, and its notable features are low voltage and low power consumption.

The DHT11 temperature and humidity sensor, MQ-2 smoke sensor, and MQ-135 gas pollution sensor installed in the present invention can comprehensively detect indoor basic temperature and humidity, concentrations of combustible gases, toxic gases, etc., and indoor dust, etc. Let’s take an example of the MQ-135 gas sensor to illustrate its working principle. When there is polluted gas in the environment where the sensor is located, the conductivity of the sensor will increase with the increase of the concentration of polluted gas in the air. Use a simple analog-to-digital conversion circuit to convert the change in conductivity into an output signal corresponding to the gas concentration, and the slave will transmit the signal to the host for analysis. The rest of the sensors work the same way.

The host wireless transmission module and antenna and the slave wireless transmission module and antenna of the present invention adopt CC1101 low-power wireless communication chip, the slave can be placed in any position in the room, and the harmful gas information collected at any place can be transmitted wirelessly through the host The module and antenna and the slave wireless transmission module and antenna are sent back to the host for processing in time. The power is appropriate to avoid data loss, the digital quantity is used to avoid distortion, and the separation of master and slave expands the detection range. A 16-bit communication mode is adopted between the master and the slave, the first 8 bits are address bits, and the last 8 bits are data bits. The default address bit is 0xFF when the master is turned on, and the default address is 0x00 when the slave is turned on. After the slave is turned on, it will send the address assignment request data word 0x00AA to the master, and the master will send the assigned address to the slave after receiving it. Using this assigned address, the master can control multiple slaves. The slave will also store the assigned address in the EEPROM, and when restarted again, the slave address will still be the assigned address.

The present invention consists of a voice recognition/synthesis module 9 and a GSM/GPRS mobile data transmitting and receiving antenna 7 to form a human-computer interaction module, and a control command is issued by a host control circuit. GSM/GPRS mobile data sending and receiving antenna adopts SIM900A module. When the received data exceeds the preset value, the host control circuit will automatically control the GSM/GPRS mobile data sending and receiving antenna to send a text message to the preset mobile phone number to inform the user that the indoor environmental pollution has exceeded the limit, and at the same time make an alarm call to the community property. The speech recognition/synthesis module uses LD3320 speech recognition dedicated chip and SYN6288 speech synthesis chip, which integrates speech recognition, speech synthesis functions and some external circuits. The recognized information is received by the host control circuit, and the user can actively adjust it through the speech control system. indoor environment. The system also integrates an Android client. Install the "360 Environmental Guard" Android software developed by us on the mobile phone, and you can receive the detection data of the host's indoor environment at any time, and display it on the user's mobile phone interface, which is convenient for users to consult. The host can be controlled within a certain distance through the client.

Household appliances include various environmental conditioning equipment and control circuits in the home. The core part of the electrical appliance control machine C is the electrical switch control circuit. The host sends control commands to the electrical switch control circuit through the wireless transmission module and antenna of the control machine. The electrical switch control circuit will complete the control of the relay control module, thereby achieving the control of household appliances switch control. The relay control module we adopt works at low level.

Some technical indicators of the present invention are as follows: temperature detection accuracy: 1°C; humidity detection accuracy: 5%; gas detection accuracy: 0.1%; cycle detection cycle: 500ms; data storage cycle: normal 5min, abnormal 30s; system storage capacity: maximum Can be extended to 1G; master-slave communication distance: open >50m.

The working principle of the smart home micro-environment detection and control system of the present invention is that after the mains power supply interface 3 or the usb power supply interface 2 of the host is connected, the power supply module 1 will obtain a stable voltage and supply power to the remaining modules. When the user moves the main switch of the host After 5, the host starts to work, and the liquid crystal display 11 begins to display information such as temperature and humidity measured. The user controls the host through the speech recognition/synthesis module 9 to realize the control work. When the main frame detects that the harmful gas exceeds the standard, the buzzer will sound, and will send an alarm message to the preset mobile phone to remind the user through the GSM/GPRS mobile data sending and receiving antenna 7 . There is a bluetooth module in the temperature-humidity sensor module and the bluetooth integrated circuit 12 in the host computer, and the detected environmental data can be sent to the mobile phone that corresponding Android software is installed through the bluetooth module, so that the user can check the indoor environmental quality at any time by the mobile phone.

The slave machine is very small in size and can be placed in any undisturbed place in the room, and the power consumption is extremely small. It can be powered by the lithium battery power module 15. When the slave machine detects that the gas parameters exceed the standard, it will pass through the wireless transmission module and The antenna 17 sends detection information to the host, and the host wireless transmission module and antenna 6 will receive the corresponding information.

When the master receives the data sent by the slave, it will send control information to the electrical appliance control machine through the host wireless transmission module and antenna, such as turning on the humidifier, fan, etc., and the electrical switch control circuit in the electrical appliance control The relay control module 21 is controlled to turn on or off the use of the electric appliance.

The host computer, slave computer, and electrical control computer of the entire system coordinate and work at the same time to realize the function of intelligent detection, adjustment and control.

All the combinations disclosed and disclosed in the present invention can be produced by referring to the disclosure herein. Although the combination of the present invention has been described in detail, those skilled in the art can clearly understand the present invention without departing from the content, spirit and scope of the present invention. The described device is spliced or changed, or some parts are added or subtracted, more specifically, all similar replacements and changes are obvious to those skilled in the art, and they are all considered to be included in the spirit and scope of the present invention and content.

Claims (9)

1. A smart home micro-environment detection and control system, characterized in that it includes: a host (A), a slave (B) and an electrical appliance controller (C) that communicate wirelessly with the host (A), respectively, wherein the The host (A) detects the indoor temperature, humidity, and gas conditions, and controls the electrical appliance controller (C) to start the indoor electrical appliances to work according to the detected indoor temperature, humidity, and gas, and displays the indoor temperature, humidity, and gas And alarm and send alarm text messages to the preset mobile phone, the slave (B) is used to detect the internal gas condition, and wirelessly transmit to the host (A), the electrical control machine (C) wirelessly receives the host (A) The signal to start the indoor electrical appliances is sent, and the corresponding electrical appliances are started to work. 2. The smart home micro-environment detection and control system according to claim 1, characterized in that, the host (A) includes: a host control circuit (14), respectively connected to the host control circuit (14) Gas sensor module (8), human body sensing module (13), alarm buzzer (4), liquid crystal display (11), speech recognition/synthesis module (9), temperature and humidity sensor module and Bluetooth integrated circuit (12) , host wireless transmission module and antenna (6), GSM/GPRS mobile data sending and receiving antenna (7) and buttons (10), also provided with the host control circuit (14), gas sensor module (8), Human body sensing module (13), alarm buzzer (4), liquid crystal display (11), speech recognition/synthesis module (9), temperature and humidity sensor and Bluetooth integrated circuit (12), host wireless transmission module and antenna (6 ), the GSM/GPRS mobile data sending and receiving antenna (7) and the button (10) are connected to the host power module (1) for supplying power, and the host power module (1) is connected respectively through the main switch (5) of the host USB power supply interface (2) and mains power supply interface (3). 3. The smart home micro-environment detection and control system according to claim 2, characterized in that an SD card storage module (27) is also connected to the host control circuit (14). 4. The smart home micro-environment detection and control system according to claim 2, characterized in that the host power module (1), host control circuit (14), SD card storage module (27) and temperature and humidity sensor module and the bluetooth integrated circuit (12) are set in the host housing (28), the usb power supply interface (2), the mains power supply interface (3), the alarm buzzer (4), the liquid crystal display (11), Host main switch (5), host wireless transmission module and antenna (6), GSM/GPRS mobile data sending and receiving antenna (7), gas sensor module (8), voice recognition/synthesis module (9), buttons (10), The liquid crystal display screen (11) and the human body induction module (13) are respectively arranged on the surface of the host casing (28). 5. The smart home micro-environment detection and control system according to claim 2, wherein the gas sensor module (8) includes an MQ-2 smoke sensor and an MQ-135 gas pollution sensor. 6. The smart home micro-environment detection and control system according to claim 1, characterized in that, the slave (B) includes a slave control circuit (19), which is connected to the slave control circuit (19) respectively The slave wireless transmission module and antenna (17) and gas sensor module (18), and the slave control circuit (19), slave wireless transmission module and antenna (17) and gas sensor module (18) are respectively connected through the slave master switch (16) The lithium battery and the power module (15) used for power supply of the sensor module (18). 7. The smart home micro-environment detection and control system according to claim 6, characterized in that, the lithium battery, the power module (15) and the slave control circuit (19) are arranged in the slave housing (29) , the slave master switch (16), slave wireless transmission module and antenna (17) and gas sensor module (18) are arranged on the surface of the slave housing (29). 8. The smart home micro-environment detection and control system according to claim 1, characterized in that, the electrical appliance control machine (C) includes: an electrical switch control circuit (20), respectively connected to the electrical switch control circuit (20) The connected relay control module (21), the control machine wireless transmission module and antenna (22) and the working indicator light (23), and the electrical switch control circuit (20) and the control machine wireless transmission module and antenna (22) are connected respectively. The power supply module (26), the relay control module (21) is connected to the control electrical interface (25), the power input terminal of the power supply module (26) and the power supply input terminal of the relay control module (21) are connected to the working power supply interface (24 ). 9. The smart home micro-environment detection and control system according to claim 8, characterized in that the electrical switch control circuit (20), the relay control module (21) and the power module (26) are arranged in the electrical control cabinet In the body (30), the wireless transmission module of the control machine, the antenna (22), the working indicator light (23), the working power supply interface (24) and the control electrical interface (25) are respectively arranged in the electrical control machine casing (30 )on the surface.

Images