CN216081585U - Wireless humiture monitoring recorder - Google Patents
Wireless humiture monitoring recorder Download PDFInfo
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- CN216081585U CN216081585U CN202122361505.9U CN202122361505U CN216081585U CN 216081585 U CN216081585 U CN 216081585U CN 202122361505 U CN202122361505 U CN 202122361505U CN 216081585 U CN216081585 U CN 216081585U
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Abstract
The utility model discloses a wireless temperature and humidity monitoring recorder which comprises a main control computer and a plurality of sensing terminals, wherein the sensing terminals are in wireless communication connection with the main control computer respectively, the sensing terminals are used for obtaining temperature and humidity information of each arrangement point respectively, the temperature and humidity information is displayed on each sensing terminal and is wirelessly sent to the main control computer, the main control computer is used for receiving the temperature and humidity information sent by the sensing terminals and displaying and storing the temperature and humidity information, the main control computer comprises a first shell, a first central processing unit, a first LORA wireless module, a first alarm module, a first liquid crystal display screen, an SD card storage module and a first power module, and the sensing terminals respectively comprise a second shell, a second central processing unit, a second LORA wireless module, a second alarm module, a second liquid crystal display screen, a second power module and a temperature and humidity sensor. The utility model can solve the technical problems of large temperature and humidity monitoring and recording system and high price at present.
Description
Technical Field
The utility model belongs to the technical field of environmental temperature and humidity monitoring, and particularly relates to a wireless temperature and humidity monitoring recorder.
Background
At present, an RS485 bus is generally arranged on the site, a plurality of temperature and humidity sensors are connected with an acquisition circuit in a control room through cables, data are resolved by a central processing unit, and the resolved result is displayed on a display screen and stored in a memory. Although the technology can realize multipoint temperature monitoring, the technology needs site construction, is complex to operate and expensive, and has long construction period and inconvenient maintenance and troubleshooting.
At present, a digital thermometer adopting an LORA technology is available, although the digital thermometer adopts a wireless internet of things technology, cables do not need to be laid, in order to solve the problem of multipoint temperature and humidity monitoring and recording, a plurality of digital temperature and humidity meters need to be laid on site, temperature and humidity signals are transmitted through a gateway, and then a computer is used for processing data and sending instructions, so that the digital thermometer has the technical defects of large system and high price.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a wireless temperature and humidity monitoring recorder.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a wireless temperature and humidity monitoring recorder comprises a main control computer and a plurality of sensing terminals, wherein the sensing terminals are in wireless communication connection with the main control computer respectively;
the plurality of sensing terminals are respectively used for obtaining temperature and humidity information of each distribution point, displaying the temperature and humidity information at each sensing terminal and wirelessly transmitting the obtained temperature and humidity information to the main control computer;
the main control computer is used for receiving the temperature and humidity information sent by the plurality of sensing terminals, and displaying and storing the temperature and humidity information.
Preferably, the main control computer contains first casing, first central processing unit, first LORA wireless module, first alarm module, first liquid crystal display, SD card storage module and first power module, first central processing unit, first LORA wireless module, first alarm module, SD card storage module and first power module all set up in the inside of first casing, first liquid crystal display sets up in the upper surface of first casing, first LORA wireless module, first alarm module, SD card storage module, first power module and first liquid crystal display all are connected with first central processing unit.
Preferably, first central processing unit is the STM32F407 module, and first central processing unit's USART serial port is connected with a LORA wireless module, and first central processing unit's I/O interface is connected with first alarm module, first liquid crystal display, SD card storage module respectively.
Preferably, the main control computer further includes a USB data interface, and the USB data interface is disposed on the first housing and connected to the first central processing unit.
Preferably, it is a plurality of the perception terminal all contains second casing, second central processing unit, second LORA wireless module, second alarm module, second liquid crystal display, second power module and temperature and humidity sensor, second central processing unit, second LORA wireless module, second alarm module, second power module and temperature and humidity sensor all set up in the inside of second casing, and second liquid crystal display sets up in the upper surface of second casing, and second LORA wireless module, second alarm module, second power module, second liquid crystal display and temperature and humidity sensor are connected with second central processing unit respectively.
Preferably, the second central processing unit is an STM32F103C8T6 module, an IIC interface of the second central processing unit is connected with the temperature and humidity sensor, a USART serial port of the second central processing unit is connected with the second LORA wireless module, and an I/O interface of the second central processing unit is respectively connected with the second alarm module and the second liquid crystal display screen.
Preferably, the second power module is provided with three electronic switches, and the three electronic switches are respectively arranged on a circuit for supplying power to the second liquid crystal display screen, the temperature and humidity sensor and the second alarm module.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the wireless temperature and humidity monitoring recorder provided by the utility model adopts an LORA wireless internet of things communication technology, can realize point-to-point data transmission, not only ensures the coverage area, but also does not increase redundant equipment, and has simple structure, low cost, economy and practicability;
(2) according to the utility model, through the design of connection of a plurality of sensing terminals and a main control computer, a wireless Internet of things can be automatically formed after electrification, the plurality of sensing terminals sense temperature and humidity information, the temperature and humidity information is displayed on a display screen of the sensing terminals and is wirelessly sent to the main control computer through a second LORA module, the portable main control computer obtains data of each sensor through a first LORA module in a polling mode and intensively displays the data on a liquid crystal display of the portable main control computer, meanwhile, the data is stored on a local SD card, the post-processing of the temperature and humidity data and the setting of an alarm threshold are also completed on the portable main control computer, and the system is simple and portable and has low cost;
(3) the utility model does not need field wiring, gateway and computer participation, and only downloads data to the computer through the USB data port of the main control computer when needed, thus having simple operation;
(4) the wireless temperature and humidity monitoring recorder provided by the utility model can effectively work in a factory building below 2 ten thousand square meters, the arrangement is very convenient, the sensing terminal is arranged at a position to be monitored in a field as required, and the wireless temperature and humidity monitoring recorder can work after being connected with a 5V direct-current power supply; the master control computer can be deployed at a distance of 200 meters from the farthest sensing terminal, and the working power supply is also 5V direct-current safe voltage and can be directly connected to a USB port of the computer for use.
Drawings
Fig. 1 is a block diagram of a wireless temperature and humidity monitoring recorder according to an embodiment of the present invention;
FIG. 2 is an electrical schematic diagram of a master controller according to an embodiment of the present invention;
FIG. 3 is an electrical schematic diagram of a sensing terminal according to an embodiment of the present invention;
in the figure: 1. a main control machine; 101. a first housing; 102. a first liquid crystal display; 2. a perception terminal; 201. a second housing; 202. and a second liquid crystal display.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The wireless temperature and humidity monitoring recorder provided by the embodiment of the utility model can be suitable for occasions such as a factory composite workshop, an assembly workshop, a numerical control workshop, a storehouse, a laboratory, an air conditioner room, a file room and the like, and is composed of a main control computer 1 and a plurality of sensing terminals 2, the main control computer 1 and the sensing terminals 2 carry out self-networking through LORA wireless communication technology, temperature and humidity information of a plurality of position points is monitored and recorded at time intervals of one minute, a temperature and humidity report and a long-term temperature and humidity recording report can be formed, the information capacity can reach one year, and the information can be downloaded to a computer at any time. And a temperature and humidity threshold value can be set in the main control computer 1, and when the environmental temperature and humidity exceed the standard, the terminal and the main control computer 1 can give an alarm. The product has simple operation and stable and reliable performance, and can expand and control the functions of the actuator according to the requirements of customers.
As shown in fig. 1 to 3, the wireless temperature and humidity monitoring recorder provided in the embodiment of the present invention includes a main control computer 1 and a plurality of sensing terminals 2, where the plurality of sensing terminals 2 are respectively in wireless communication connection with the main control computer 1;
the plurality of sensing terminals 2 are respectively used for obtaining temperature and humidity information of each distribution point, displaying the temperature and humidity information at each sensing terminal 2 and wirelessly transmitting the obtained temperature and humidity information to the main control machine 1;
the main control machine 1 is used for receiving, displaying and storing the temperature and humidity information sent by the plurality of sensing terminals 2. The number of sensing terminals 2 may be set to 4 in particular.
Main control computer 1 contains first casing 101, first central processing unit, first LORA wireless module, first alarm module, first liquid crystal display 102, SD card storage module and first power module, first central processing unit, first LORA wireless module, first alarm module, SD card storage module and first power module all set up in the inside of first casing 101, first liquid crystal display 102 sets up in the upper surface of first casing 101, first LORA wireless module, first alarm module, SD card storage module, first power module and first liquid crystal display 102 all are connected with first central processing unit.
A first central processing unit is an STM32F407 module, a USART serial port of the first central processing unit is connected with a first LORA wireless module, and an I/O interface of the first central processing unit is respectively connected with a first alarm module, a first liquid crystal display screen 102 and an SD card storage module. The SD card storage module adopts a 16G TF card, the first liquid crystal display screen 102 is a 3.5-inch TFT touch screen, time can be displayed, a main interface can be operated, the main interface is controlled by a first central processing unit, and the main interface is provided with three soft keys: temperature and humidity monitoring, data uploading, parameter setting, pressing a temperature and humidity monitoring key, entering a monitoring interface, monitoring and recording temperature and humidity parameters of each point, and setting an exit monitoring soft key on the monitoring interface to return to a main interface through the exit monitoring soft key; pressing the data uploading soft key can upload the recorded data to the computer through the USB interface of the main control computer. And a 'parameter setting' soft key is pressed, and a time and temperature and humidity threshold setting interface can be accessed to set time and temperature and humidity thresholds. The first LORA wireless module and the second LORA wireless module both adopt an SX1278 chip of the liter company, the working frequency is 410-; first alarm module specifically adopts bee calling organ, when the humiture surpassed the threshold value, sends the alarm sound, and first power module contains the lithium cell, voltage conversion circuit and charging and discharging circuit, and the effect is to convert 5V voltage into 3.3V voltage, for first central processing unit, first wireless LORA module, the power supply of first alarm module, first power module still can be for a lesson 4.5V's lithium cell charging to the commercial power is lithium cell as stand-by power supply when disconnected.
The main control machine 1 further comprises a USB data interface, and the USB data interface is disposed on the first casing and connected to the first central processing unit. The USB data interface is used for uploading data of the main control computer 1 to a computer.
It is a plurality of perception terminal 2 all contains second casing 201, second central processing unit, second LORA wireless module, second alarm module, second liquid crystal display 202, second power module and temperature and humidity sensor, second central processing unit, second LORA wireless module, second alarm module, second power module and temperature and humidity sensor all set up in the inside of second casing 201, and second liquid crystal display 202 sets up in the upper surface of second casing 201, and second LORA wireless module, second alarm module, second power module, second liquid crystal display 202 and temperature and humidity sensor are connected with second central processing unit respectively.
The second central processing unit is STM32F103C8T6 module, and the IIC interface and the temperature and humidity sensor of second central processing unit are connected, and the USART serial ports and the wireless module of second LORA of second central processing unit are connected, and the I/O interface of second central processing unit is connected with second alarm module and second liquid crystal display 202 respectively. The model of the temperature and humidity sensor is SHT30, the temperature and humidity sensor is an integrated temperature and humidity sensor, the sensor adopts a Sension temperature and humidity chip originally installed in Sweden, signal output is carried out through an IIC interface, the second LORA wireless module adopts an SX1278 chip of the liter company, the working frequency is 410-441MHz, and the power is 100 mW; the second power module contains lithium cell, charge-discharge circuit and voltage conversion circuit, and its effect is to convert 5V voltage into 3.3V voltage, for second central processing unit, temperature and humidity sensor, second alarm module, the power supply of second LORA module, and the second module still can be for a lesson 4.5V's lithium cell charging to the commercial power is disconnected occasionally the lithium cell and is regarded as stand-by power supply. The multiple sensing terminals 2 and the main control machine 1 are internally provided with lithium batteries, the operation can be continued for about 10 hours under the power-off condition, the second liquid crystal display screen 202 adopts a 0.96IPS LCD display screen and is controlled by the second central processing unit to display the machine number and the temperature and humidity values of the machine.
And the second power supply module is provided with three electronic switches which are respectively arranged on a circuit which is used for supplying power to the second liquid crystal display screen 202, the temperature and humidity sensor and the second alarm module. The three electronic switches are used for controlling the on-off of a power supply line power supply, the three electronic switches are controlled by an I/O interface of a first central processing unit of the sensing terminal, when the sensing terminal receives an instruction of a main control computer, the three electronic switches are controlled to be closed, the whole line works and sends data to the main control computer, when the data are sent, a second central processing unit of the sensing terminal controls the electronic switches to be disconnected, only a second LORA module and the second central processing unit work partially at the moment, other devices all enter dormancy, and the power consumption of the whole machine is greatly reduced. The utility model controls the working and sleeping time of the sensing terminal by adopting a mode of combining software and an electronic switch, can not only obtain multipoint temperature and humidity parameters according to the requirements of users and display and record in a centralized manner, but also saves energy and prolongs the working time of the lithium battery.
When the wireless temperature and humidity monitoring recorder provided by the embodiment of the utility model is used, firstly, N sensing terminals and 1 main control machine are respectively arranged at positions to be monitored in a field according to requirements, 5V direct current power supplies are respectively connected, then the main control machine sequentially sends out instructions to the sensing terminals 2 every 1 minute (or set according to user requirements) through a first LORA module to request the sensing terminals to report temperature and humidity parameters, a second LORA module of the sensing terminals 2 immediately transmits the instructions to a second central processing unit after receiving the instructions, the second central processing unit compares temperature and humidity data transmitted by a temperature and humidity sensor through an IIC interface with a set alarm threshold value, if the temperature and humidity data exceed the standard, a high level is sent to the second alarm module to trigger alarm, and if the temperature and humidity data do not exceed the standard, a low level is sent to the second alarm module, and no alarm is sent; then the temperature and humidity data are conditioned by the second central processing unit, then the temperature and humidity data are uploaded to the first LORA module of the main control machine 1 through the second LORA module, if the data are normal, the data enter a dormant state after uploading is completed, the electronic switch is switched off, only the second LORA module and the second central processing unit work partially, if the data are abnormal, the sensing terminal 2 does not sleep after the data uploading is completed, the second alarm module sends out alarm sound to remind, until the alarm is relieved, the first LORA module of the main control machine 1 obtains parameters of the sensing terminal and sends the parameters to the first central processing unit of the main control machine 1, the first central processing unit firstly demodulates the data, compares the data with a set temperature and humidity threshold value to judge whether the data exceed the standard, and if the first central processing unit exceeds the standard, the first central processing unit sends out a high level to the first alarm module to trigger the first alarm module to send out the alarm sound to remind.
In summary, the line temperature and humidity monitoring recorder provided by the embodiment of the utility model adopts the LORA wireless internet of things communication technology, can realize point-to-point data transmission, not only ensures the coverage area, but also does not increase redundant equipment, and has simple structure, low cost, economy and practicality; the portable main control machine obtains sensor data from the first LORA module in a polling mode and displays the sensor data on a liquid crystal display screen of the portable main control machine in a centralized manner, and simultaneously stores the data on an SD card of the portable main control machine, and the post-processing of the temperature and humidity data and the setting of an alarm threshold are also finished on the portable main control machine; in addition, the utility model does not need field wiring, a gateway and computer participation, only downloads data to the computer through the USB data port of the main control computer when needed, and has simple operation.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A wireless temperature and humidity monitoring recorder is characterized by comprising a main control machine (1) and a plurality of sensing terminals (2), wherein the sensing terminals (2) are in wireless communication connection with the main control machine (1) respectively;
the plurality of sensing terminals (2) are respectively used for obtaining temperature and humidity information of each distribution point, displaying the temperature and humidity information at each sensing terminal (2) and wirelessly transmitting the obtained temperature and humidity information to the main control computer (1);
the main control machine (1) is used for receiving, displaying and storing the temperature and humidity information sent by the plurality of sensing terminals (2).
2. The wireless temperature and humidity monitoring recorder according to claim 1, wherein the main control computer (1) comprises a first casing (101), a first central processing unit (cpu), a first LORA wireless module, a first alarm module, a first liquid crystal display (102), a SD card storage module and a first power supply module, the first cpu, the first LORA wireless module, the first alarm module, the SD card storage module and the first power supply module are all disposed inside the first casing (101), the first liquid crystal display (102) is disposed on an upper surface of the first casing (101), and the first LORA wireless module, the first alarm module, the SD card storage module, the first power supply module and the first liquid crystal display (102) are all connected to the first cpu.
3. The wireless temperature and humidity monitoring recorder of claim 2, wherein the first central processing unit is an STM32F407 module, a USART serial port of the first central processing unit is connected with the first LORA wireless module, and an I/O interface of the first central processing unit is connected with the first alarm module, the first liquid crystal display (102), and the SD card storage module, respectively.
4. The wireless temperature and humidity monitoring recorder according to claim 2, wherein the main control computer (1) further comprises a USB data interface, and the USB data interface is disposed on the first housing (101) and connected to the first central processing unit.
5. The wireless temperature and humidity monitoring recorder according to claim 1, wherein the plurality of sensing terminals (2) each include a second housing (201), a second central processing unit (cpu), a second LORA wireless module, a second alarm module, a second liquid crystal display (202), a second power module and a temperature and humidity sensor, the second cpu, the second LORA wireless module, the second alarm module, the second power module and the temperature and humidity sensor are all disposed inside the second housing (201), the second liquid crystal display (202) is disposed on an upper surface of the second housing (201), and the second LORA wireless module, the second alarm module, the second power module, the second liquid crystal display (202) and the temperature and humidity sensor are respectively connected to the second cpu.
6. The wireless temperature and humidity monitoring recorder of claim 5, wherein the second central processing unit is an STM32F103C8T6 module, an IIC interface of the second central processing unit is connected with the temperature and humidity sensor, a USART serial port of the second central processing unit is connected with the second LORA wireless module, and an I/O interface of the second central processing unit is respectively connected with the second alarm module and the second liquid crystal display (202).
7. The wireless temperature and humidity monitoring recorder of claim 5, wherein the second power module is provided with three electronic switches, and the three electronic switches are respectively arranged on a circuit of the second power module for supplying power to the second liquid crystal display (202), the temperature and humidity sensor and the second alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122361505.9U CN216081585U (en) | 2021-09-28 | 2021-09-28 | Wireless humiture monitoring recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122361505.9U CN216081585U (en) | 2021-09-28 | 2021-09-28 | Wireless humiture monitoring recorder |
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| Publication Number | Publication Date |
|---|---|
| CN216081585U true CN216081585U (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122361505.9U Active CN216081585U (en) | 2021-09-28 | 2021-09-28 | Wireless humiture monitoring recorder |
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|---|---|
| CN (1) | CN216081585U (en) |
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2021
- 2021-09-28 CN CN202122361505.9U patent/CN216081585U/en active Active
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