CN220020141U - Control integrated circuit for environment monitoring equipment - Google Patents

Abstract

The utility model discloses a control integrated circuit for environment monitoring equipment, which comprises: the device comprises a power supply module, a main control module, an interface conversion module, an environment monitoring module and a box body. The environment monitoring module collects environment parameters of the current monitoring environment, the environment parameters are transmitted to the Air724UG-NFM control chip by the interface conversion module, the Air724UG-NFM control chip receives the environment parameters, processes the environment parameters, and remotely transmits the environment parameters to external equipment. Compared with the prior art, the utility model only adopts the Air724UG-NFM control chip to complete the functions required by environment monitoring, reduces the cost of manufacturing materials, lightens circuit design, can process a large number of environment parameters, reduces the volume of environment monitoring equipment, can be used for fixed environment monitoring stations, can be used for portable environment monitoring equipment or mobile environment monitoring equipment and other scenes requiring small volume and low power consumption, and realizes remote wireless transmission.

Description

Control integrated circuit for environment monitoring equipment

Technical Field

The utility model relates to the technical field of environmental monitoring, in particular to a control integrated circuit for environmental monitoring equipment.

Background

In recent years, environmental monitoring has become a popular application as people pay more and more attention to environmental quality. Commonly, environmental monitoring equipment is mostly set up in the equipment box in the environmental collection website, can reduce the damage of bad weather to environmental monitoring equipment through setting up the equipment box.

In the prior art, the environment monitoring equipment is provided with a peripheral sensor which is communicated with a main control chip, so that the collected data is processed, and the collected data is transmitted remotely through a wireless transmission module, so that the basic function of the environment monitoring equipment is realized. However, the space in the equipment box is limited, and according to the basic function of the environment monitoring equipment, stable communication between the main control chip and the wireless transmission module is required, so that the environment monitoring equipment has the problems of high cost, large volume, low stability and difficult later maintenance.

For this reason, an apparatus capable of solving the above-mentioned problems and realizing environmental monitoring is demanded.

Disclosure of Invention

It is an object of the present utility model to provide a control integrated circuit for an environmental monitoring device that solves one or more of the technical problems of the prior art, and at least provides a beneficial choice or creation.

The utility model solves the technical problems as follows: there is provided a control integrated circuit for an environmental monitoring device, comprising: the device comprises a power supply module, a main control module, an interface conversion module, an environment monitoring module and a box body;

the main control module and the interface conversion module are arranged in the box body, the output end of the environment monitoring module is connected with the input end of the interface conversion module, the output end of the interface conversion module is connected with the main control module, the power supply module provides corresponding power supply voltages for the main control module, the interface conversion module and the environment monitoring module, the main control module comprises a control chip and an antenna, the control chip is connected with the antenna, and the control chip is an Air724UG-NFM control chip;

the environment monitoring module is used for collecting environment parameters and sending the environment parameters to the main control module through the interface conversion module, and the main control module receives the environment parameters and wirelessly transmits the environment parameters to the external equipment.

Further, the interface conversion module includes: the device comprises a plug interface, a first conversion unit and a second conversion unit;

the output end of the first conversion unit is connected with the IIC port of the control chip, the output end of the second conversion unit is connected with the serial port of the control chip, and the input end of the first conversion unit and the input end of the second conversion unit are connected with the output end of the environment monitoring module through the plug interface.

Further, a control integrated circuit for an environmental monitoring device, further comprising: the device comprises a driving module and a wireless indication module;

the input end of the driving module is connected with the output end of the main control module, the output end of the driving module is connected with the external regulation and control device, the main control module receives the environmental parameters and sends a regulation and control signal to the driving module, and the driving module is used for receiving the regulation and control signal and sending the driving signal to the external regulation and control device;

the input end of the wireless indication module is connected with the output end of the main control module, and the wireless indication module is used for displaying the network connection state of the main control module.

Further, the environmental monitoring module includes: an air quality detector;

the air quality detector is arranged outside the box body and is connected with the input end of the second conversion unit through the plug interface.

Further, the environmental monitoring module further includes: an equivalent carbon dioxide detector;

the equivalent carbon dioxide detector is arranged outside the box body and is connected with the input end of the first conversion unit through the plugging interface.

Further, the environmental monitoring module further includes: an illuminance detector;

the illuminance detector is arranged outside the box body and is connected with the input end of the first conversion unit through the plugging interface.

Further, the environmental monitoring module further includes: a wind speed and direction detector;

the wind speed and direction detector is arranged outside the box body and is connected with the input end of the second conversion unit through the plugging interface.

Further, the environmental monitoring module further includes: an atmospheric pressure detector;

the atmospheric pressure detector is arranged in the box body and is connected with the input end of the first conversion unit through the plugging interface.

Further, the power module includes: a first step-down unit and a second step-down unit;

the external power supply is respectively connected with the input end of the first voltage reduction unit and the input end of the second voltage reduction unit, the output end of the first voltage reduction unit is connected with the main control module, and the first voltage reduction unit is used for providing corresponding power supply voltage for the main control module;

the output end of the second voltage reduction unit is respectively connected with the interface conversion module and the environment monitoring module, and the second voltage reduction unit is used for providing corresponding power supply voltage for the interface conversion module and the environment monitoring module.

Further, the main control module further comprises: a SIM card slot;

the SIM card slot is connected with the control chip and is used for fixing the Internet of things card.

The beneficial effects of the utility model are as follows: the environment monitoring module is used for collecting environment parameters of the current monitoring environment, transmitting the environment parameters to the Air724UG-NFM control chip by utilizing the interface conversion module, receiving the environment parameters by the Air724UG-NFM control chip, processing the environment parameters and remotely transmitting the environment parameters to external equipment. Compared with the prior art, the utility model only adopts the Air724UG-NFM control chip to complete the functions required by environment monitoring, reduces the cost of manufacturing materials, lightens circuit design, can process a large amount of environment parameters, reduces the volume of environment monitoring equipment, not only can be used for fixed environment monitoring sites, but also can be used for portable environment monitoring equipment or mobile environment monitoring equipment and other scenes requiring small volume and low power consumption, and realizes remote wireless transmission.

Drawings

FIG. 1 is a schematic circuit diagram of a master control module of a control integrated circuit for an environmental monitoring device according to an embodiment of the present utility model;

FIG. 2 is a schematic circuit diagram of an interface conversion module and an environmental monitoring module of a control integrated circuit for an environmental monitoring device according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a power module of a control integrated circuit for an environmental monitoring device according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of an environmental monitoring device for a control integrated circuit of the environmental monitoring device according to an embodiment of the present utility model.

Reference numerals: the device comprises a main control module 100, an interface conversion module 200, a first conversion unit 210, a second conversion unit 220, a power supply module 300, a first voltage reduction unit 310, a second voltage reduction unit 320, a wireless indication module 400, a box body 500, a detection station upright rod 600, a first louver box 610, a second louver box 620, a wind speed and direction detector 630 and a solar power supply panel 640.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be determined reasonably by a person skilled in the art in combination with the specific contents of the technical solution.

It should be noted that, although the functional block division is performed in the system schematic, in some cases, the block division may be different from that in the system. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Thus, features defining "first" and "second" may explicitly or implicitly include one or more features.

Referring to fig. 1 to 4, in some embodiments of the present utility model, a control integrated circuit for an environmental monitoring device includes: the device comprises a main control module 100, a box 500, a power module 300, an environment monitoring module and an interface conversion module 200.

The main control module 100 is installed inside the case 500, and the main control module 100 includes: the antenna comprises a control chip U1, a SIM card slot U2 and an antenna RF, wherein the control chip U1 is an Air724UG-NFM control chip. The antenna RF is electrically connected with the antenna pin of the control chip U1, and the electrical wiring impedance between the antenna RF and the antenna pin of the control chip U1 is less than 50Ω. Air724UG-NFM control chip U1 supports a 4G Cat.1 communication protocol.

The SIM card slot U2 is electrically connected with the control chip U1, and the SIM card slot U2 is used for inserting an Internet of things card and fixing the Internet of things card, so that wireless communication is realized.

Because the voltage domain of most pins of the Air724UG-NFM control chip U1 in the main control module 100 is about 1.8V, the levels of the led-out serial ports and IIC communication pins are about 1.8V, and normal communication with an environment monitoring module of 5V or 3.3V can not be performed.

Therefore, the main control module 100 is electrically connected with the environment monitoring module by the interface conversion module 200. The interface conversion module 200 is installed inside the box 500, the input end of the interface conversion module 200 is electrically connected with the output end of the environment monitoring module, and the output end of the interface conversion module 200 is electrically connected with the main control module 100.

The environment monitoring module is used for collecting environment parameters of the current monitoring environment, transmitting the environment parameters to the control chip U1 by using the interface conversion module 200, receiving the environment parameters by the control chip U1, processing the environment parameters, and remotely transmitting the environment parameters to the external equipment.

The input end of the power module 300 is electrically connected with an external power supply, and the output end of the power module 300 is respectively electrically connected with the main control module 100, the interface conversion module 200 and the environment monitoring module, and respectively outputs corresponding power supply voltages to the environment monitoring module, the main control module 100 and the interface conversion module 200.

Compared with the prior art, the utility model only adopts the Air724UG-NFM control chip U1 to complete the required functions, reduces the cost of manufacturing materials, lightens circuit design, can process a large amount of environmental parameters, reduces the volume of environmental monitoring equipment, can be used for fixed environmental monitoring stations, can also be used for portable environmental monitoring equipment or mobile environmental monitoring equipment and other scenes requiring small volume and low power consumption, and realizes remote wireless transmission.

Referring to fig. 1 to 4, in some embodiments of the present utility model, a control integrated circuit for an environmental monitoring device further includes: the driving module and the wireless indication module 400.

The input end of the driving module is electrically connected with the output end of the main control module 100, and the output end of the driving module is electrically connected with an external regulating device. Wherein, the drive module includes: a PWM unit and a relay unit. The driving module is used for receiving the regulation and control signal sent by the main control module 100, and transmitting the driving signal to external regulation and control equipment according to the regulation and control signal. After the environmental parameters are changed, the current environment can be automatically interfered through the regulation and control of the external regulation and control equipment.

The input end of the wireless indication module 400 is electrically connected with the output end of the main control module 100, and the wireless indication module 400 is used for displaying the network connection state of the control chip U1. The wireless indication module 400 includes: the voltage amplifying unit 410 and the network connection status indicator lamp.

Referring to fig. 1, the voltage amplifying unit 410 includes: triode and current limiting resistor. Wherein, triode includes: the first triode Q1 and the second triode Q2 are MMBT3904 triodes, and the current limiting resistor comprises: current limiting resistor R1, current limiting resistor R2, current limiting resistor R3, current limiting resistor R4, current limiting resistor R5, and current limiting resistor R6. The voltage domain of 1.8V of the GPIO port of the control chip U1 is enlarged by regulating and amplifying the triode and the current limiting resistor, and the driving capability of the GPIO port is enhanced.

The network connection status indicator lamp includes: a first LED lamp LED1 and a first LED lamp LED2.

For example: when the main control module 100 is wirelessly connected to an LTE network or a 4G network, a high-level signal is output, and the high-level signal is amplified by the voltage amplifying unit 410 to drive the network connection status indicator lamp LED1 to be on; when the connection between the main control module 100 and the LTE network or the 4G network fails, a low level signal is output, and the low level signal is amplified by the voltage amplifying unit 410, so that the network connection status indicator LED1 is turned off.

Referring to fig. 1 to 4, in some embodiments of the present utility model, an interface conversion module 200 includes: the plug interface, the first conversion unit 210 and the second conversion unit 220.

The plug interface is connected with the input end of the environmental monitoring module, is electrically connected with the output end of the first conversion unit 210, is electrically connected with the output end of the second conversion unit 220, and is used for fixing the environmental monitoring module. The plug-in interface can greatly lighten the difficulty of replacing, debugging or checking the environment monitoring module on the premise of ensuring stable connection.

In this embodiment, an XH2.54 plug-in type straight socket and a row bus bar with a pitch of 2.54mm are mainly used as main peripheral connectors.

The output end of the first conversion unit 210 is electrically connected with the IIC port of the control chip U1, the input end of the first conversion unit 210 is electrically connected with the plug interface, and the environment monitoring module is fixedly connected to the plug interface, so that the output end of the environment monitoring module is electrically connected with the input end of the first conversion unit 210 through the plug interface. The first conversion unit 210 is used for performing level conversion on the IIC port of 1.8V.

The first conversion unit 210 includes: a field effect transistor Q3, a seventh resistor R7, an eighth resistor R8, and a ninth resistor R9. The grid electrode of the field effect tube Q3 is electrically connected with a power supply pin of the control chip U1 through an eighth resistor R8, the source electrode of the field effect tube Q3 is electrically connected with an IIC_SCL port of the control chip U1, the source electrode of the field effect tube Q3 is electrically connected with the power supply pin of the control chip U1 through a seventh resistor R7, the drain electrode of the field effect tube Q3 is electrically connected with a plug interface, and the drain electrode of the field effect tube Q3 is connected with 3.3V power supply voltage through a ninth resistor R9.

In the first converting unit 210, the iic_sda port and the iic_scl port of the control chip U1 are electrically connected in unison, and therefore, in this embodiment, the description is omitted.

The output end of the second conversion unit 220 is electrically connected with the serial port of the control chip U1, the input end of the second conversion unit 220 is electrically connected with the plug interface, and the environment monitoring module is fixedly connected to the plug interface so as to realize that the output end of the environment monitoring module is electrically connected with the input end of the second conversion unit 220 through the plug interface. The second conversion unit 220 is configured to perform level conversion on the serial port of 1.8V.

The second conversion unit 220 includes: a fifth transistor Q5, a second diode D2, a thirteenth resistor R13, a fourteenth resistor R14, and a fifteenth resistor R15. The base of the fifth triode Q5 is electrically connected with a power supply pin of the control chip U1 through a fourteenth resistor R14, the emitter of the fifth triode Q5 is electrically connected with a UART1 TXD port of the control chip U1, the collector of the fifth triode Q5 is connected with a 3.3V power supply voltage through a thirteenth resistor R13, and the collector of the fifth triode Q5 is electrically connected with a plug interface.

The anode of the second diode D2 is electrically connected with the fifteenth resistor R15 and the UART 1-RXD port of the control chip U1 respectively, and the cathode of the second diode D2 is electrically connected with the plug interface. The fifteenth resistor R15 is electrically connected to the power supply pin of the control chip U1.

Referring to fig. 1 to 4, in some embodiments of the present utility model, an environmental monitoring apparatus includes: a monitor box, a detection site pole 600, a first louver box 610, and a second louver box 620. A cross arm is arranged on the upright post 600 of the detection station, and a monitoring box is arranged at the upper end of the upright post 600 of the detection station. The first louver box 610 is disposed on one side of the cross arm, and the second louver box 620 is disposed on the other side of the cross arm.

Referring to fig. 1-4, in some embodiments of the utility model, an environmental monitoring module includes: an air quality detector U4, an equivalent carbon dioxide detector, an illuminance detector, a wind speed and direction detector 630, and an atmospheric pressure detector U3.

The air quality detector U4 is disposed outside the box body 500 of the monitoring box, and is mounted on the first louver box 610, and the air quality detector U4 is plugged on the plugging interface, so as to be electrically connected with the input end of the second conversion unit 220, and electrically connected with the serial port of the control chip U1. The air quality detector U4 is used for monitoring the air quality of the current environment to obtain air quality parameters. Wherein the air quality detector U4 is an M701 detector.

The equivalent carbon dioxide detector is disposed outside the box body 500 of the monitoring box, and is mounted on the second shutter box 620, and the equivalent carbon dioxide detector is plugged on the plugging interface, so as to be electrically connected with the input end of the first conversion unit 210 and the IIC port of the control chip U1. The equivalent carbon dioxide detector is used for monitoring carbon dioxide in the current environment to obtain carbon dioxide parameters. Wherein the equivalent carbon dioxide detector is a CCS811B detector.

The illuminance detector is disposed outside the box 500 of the monitoring box, and is mounted on the second shutter box 620, and the illuminance detector is plugged on the plugging interface, so as to be electrically connected to the input end of the first conversion unit 210 and the IIC port of the control chip U1. The illumination detector is used for monitoring the illumination intensity of the current environment to obtain illumination intensity parameters. Wherein the illuminance detector is a BH1750 detector.

The wind speed and direction detector 630 is arranged outside the box body 500 of the monitoring box and is installed on a cross arm of the upright 600 at the detection station, and the wind speed and direction detector 630 is inserted into the plugging interface so as to be electrically connected with the input end of the second conversion unit 220 and the serial port of the control chip U1, and the wind speed and direction detector 630 is used for acquiring the wind direction and the wind speed of the current environment to obtain wind direction parameters and wind speed parameters. Wherein wind speed and direction detector 630 is an SM5388B detector.

The atmospheric pressure detector U3 is disposed inside the box 500 of the monitoring box, and the atmospheric pressure detector U3 is plugged on the plugging interface, so as to be electrically connected with the input end of the first conversion unit 210 and the IIC port of the control chip U1. The atmospheric pressure detector U3 is used for monitoring the atmospheric pressure of the current environment to obtain an atmospheric pressure parameter, wherein the atmospheric pressure detector U3 is a BMP280 detector.

Referring to fig. 1 to 4, in some embodiments of the present utility model, a power module 300 includes: the first step-down unit 310 and the second step-down unit 320.

The first voltage reducing unit 310 provides a corresponding power voltage to the main control module 100, an output end of the first voltage reducing unit 310 is electrically connected with the control chip U1, and an input end of the first voltage reducing unit 310 is connected with an external power supply. Wherein, external power supply is 5V DC power supply.

According to the power supply voltage of the control chip U1, when the burst module type voltage is lower than 3.3V, the radio frequency index is deteriorated, so as to meet the wireless transmission function of the environmental monitoring device, the circuit of the first step-down unit 310 is specifically designed.

The first step-down unit 310 includes: the first buck regulator chip U5, the zener diode D3, the tenth capacitor C10, the eleventh capacitor C11, the seventeenth resistor R17 and the sixteenth resistor R16.

The first pin and the second pin of first step-down steady voltage chip U5 connect external power supply 5V, and the third pin of first step-down steady voltage chip U5 ground connection, and the fourth pin of first step-down steady voltage chip U5 is connected with zener diode D3's negative pole, tenth electric capacity C10's positive pole and eleventh electric capacity C11 electricity respectively, and zener diode D3 is parallelly connected with tenth electric capacity C10 and eleventh electric capacity C11 respectively, and zener diode D3's negative pole and control chip U1 electricity are connected. The fourth pin of the first buck regulator chip U5 is electrically connected with a seventeenth resistor R17, one end of a sixteenth resistor R16 is grounded, and the other end of the sixteenth resistor R16 is electrically connected with the fifth pin of the first buck regulator chip U5 and the seventeenth resistor R17 respectively. The sixth pin of the first buck voltage stabilizing chip U5 is suspended. The first voltage-reducing and voltage-stabilizing chip U5 is a MIC29302WU low-dropout linear voltage-stabilizing chip.

The power supply to the main control module 100 is realized through the first voltage reduction unit 310, and the anti-surge function is realized through the connection mode of correspondingly arranging the zener diode D3, the capacitor and the resistor.

The external power supply of the environmental monitoring device is subjected to a step-down process by the second step-down unit 320, so as to supply a corresponding power supply voltage to the environmental monitoring module. The input end of the second voltage reduction unit 320 is electrically connected with an external power supply, and the output end of the second voltage reduction unit is electrically connected with an equivalent carbon dioxide detector, an atmospheric pressure detector U3 and an illuminance detector in the environment monitoring module.

In addition, the output end of the second voltage drop unit is electrically connected to the first conversion unit 210 and the second conversion unit 220, respectively, and supplies the corresponding power voltage to the first conversion unit 210 and the second conversion unit 220. Wherein the second pressure drop unit comprises: AMS1117 low dropout linear regulator chip U6.

The top end of the detection station upright post 600 is provided with a solar power supply panel 640, the solar power supply panel 640 is electrically connected with the power module 300, and the solar power supply panel 640 can convert solar energy into electric energy, so as to supply power for the power module 300.

While the preferred embodiment of the present utility model has been described in detail, the utility model is not limited to the embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the utility model, and these modifications and substitutions are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. A control integrated circuit for an environmental monitoring device, comprising: the device comprises a power supply module, a main control module, an interface conversion module, an environment monitoring module and a box body;

the main control module and the interface conversion module are arranged in the box body, the output end of the environment monitoring module is connected with the input end of the interface conversion module, the output end of the interface conversion module is connected with the main control module, the power supply module provides corresponding power supply voltages for the main control module, the interface conversion module and the environment monitoring module, the main control module comprises a control chip and an antenna, the control chip is connected with the antenna, and the control chip is an Air724UG-NFM control chip;

the environment monitoring module is used for collecting environment parameters and sending the environment parameters to the main control module through the interface conversion module, and the main control module receives the environment parameters and wirelessly transmits the environment parameters to the external equipment.

2. The control integrated circuit for an environmental monitoring device of claim 1, wherein the interface conversion module comprises: the device comprises a plug interface, a first conversion unit and a second conversion unit;

the output end of the first conversion unit is connected with the IIC port of the control chip, the output end of the second conversion unit is connected with the serial port of the control chip, and the input end of the first conversion unit and the input end of the second conversion unit are connected with the output end of the environment monitoring module through the plug interface.

3. A control integrated circuit for an environmental monitoring device as defined in claim 1, further comprising: the device comprises a driving module and a wireless indication module;

the input end of the driving module is connected with the output end of the main control module, the output end of the driving module is connected with the external regulation and control device, the main control module receives the environmental parameters and sends a regulation and control signal to the driving module, and the driving module is used for receiving the regulation and control signal and sending the driving signal to the external regulation and control device;

the input end of the wireless indication module is connected with the output end of the main control module, and the wireless indication module is used for displaying the network connection state of the main control module.

4. A control integrated circuit for an environmental monitoring device according to claim 2, wherein the environmental monitoring module comprises: an air quality detector;

the air quality detector is arranged outside the box body and is connected with the input end of the second conversion unit through the plug interface.

5. The control integrated circuit for an environmental monitoring device of claim 2, wherein the environmental monitoring module further comprises: an equivalent carbon dioxide detector;

the equivalent carbon dioxide detector is arranged outside the box body and is connected with the input end of the first conversion unit through the plugging interface.

6. The control integrated circuit for an environmental monitoring device of claim 2, wherein the environmental monitoring module further comprises: an illuminance detector;

the illuminance detector is arranged outside the box body and is connected with the input end of the first conversion unit through the plugging interface.

7. The control integrated circuit for an environmental monitoring device of claim 2, wherein the environmental monitoring module further comprises: a wind speed and direction detector;

the wind speed and direction detector is arranged outside the box body and is connected with the input end of the second conversion unit through the plugging interface.

8. The control integrated circuit for an environmental monitoring device of claim 2, wherein the environmental monitoring module further comprises: an atmospheric pressure detector;

the atmospheric pressure detector is arranged in the box body and is connected with the input end of the first conversion unit through the plugging interface.

9. A control integrated circuit for an environmental monitoring device according to claim 1, wherein the power module comprises: a first step-down unit and a second step-down unit;

the external power supply is respectively connected with the input end of the first voltage reduction unit and the input end of the second voltage reduction unit, the output end of the first voltage reduction unit is connected with the main control module, and the first voltage reduction unit is used for providing corresponding power supply voltage for the main control module;

the output end of the second voltage reduction unit is respectively connected with the interface conversion module and the environment monitoring module, and the second voltage reduction unit is used for providing corresponding power supply voltage for the interface conversion module and the environment monitoring module.

10. The control integrated circuit for an environmental monitoring device of claim 1, wherein the master control module further comprises: a SIM card slot;

the SIM card slot is connected with the control chip and is used for fixing the Internet of things card.