CN110631632A - Paperless temperature and humidity display system capable of recording continuously - Google Patents
Paperless temperature and humidity display system capable of recording continuously Download PDFInfo
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- CN110631632A CN110631632A CN201910837215.1A CN201910837215A CN110631632A CN 110631632 A CN110631632 A CN 110631632A CN 201910837215 A CN201910837215 A CN 201910837215A CN 110631632 A CN110631632 A CN 110631632A
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- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a paperless temperature and humidity display system capable of continuously recording, which comprises a processing unit, a display unit, a temperature and humidity sensor and a memory unit, wherein the display unit, the temperature and humidity sensor and the memory unit are all connected with the processor unit; the ink pen has the advantages that the ink pen is not required to be maintained by personnel in real time, paper is effectively saved, and recording broken caused by insufficient paper is avoided. The processor unit and the temperature and humidity sensor can realize real-time detection of temperature and humidity in the environment, and received temperature and humidity information can be stored in the expansion memory through the processor unit, so that the upper computer can read and query conveniently.
Description
Technical Field
The invention relates to the field of temperature and humidity recorders, in particular to a paperless temperature and humidity display system capable of continuously recording.
Background
In some fields, the temperature and humidity need to be recorded for a long time, for example, in the field of meteorological monitoring, not only the meteorological condition needs to be detected, but also the temperature and humidity at that time need to be recorded in real time for a long time and stored as the climate data of the area; or when the medicine is detected and stored, the temperature and the humidity of the environment need to be detected and recorded in real time. The traditional temperature and humidity recording adopts papery recording, such as a SEKONIC ST-50A temperature and humidity recorder in Japan, records temperature and humidity data through a computer and describes a temperature curve through the papery recorder. The humiture curve graph that this mode was carved needs personnel in time to maintain the ink pen when, consequently leads to this mode of this use can only record the humiture for the short time, and adopts the waste that has the paper record can lead to the paper, and the humiture curve graph through the ink pen is difficult for preserving, can lead to the humiture record of this moment losing when lacking black or lacking the paper. The existing humiture recorder adopts a paperless recording mode, but cannot record humiture information in real time. The existing temperature and humidity recorder adopts an intermittent reading mode, namely, a temperature and humidity sensor is read and recorded at a certain moment, and the moment of reading the temperature and humidity value is not natural time, namely Beijing time.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the temperature and humidity display system can continuously record the environment temperature and humidity in real time and can store environment temperature and humidity information in a paperless and continuous mode.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a humiture display system that paperless can take notes in succession, includes processing system ware unit, display unit, temperature and humidity sensor and memory cell, display unit, temperature and humidity sensor, memory cell all with processor unit be connected, temperature and humidity sensor be used for the humiture information of real-time detection environment and transmit the humiture information that detects for processor unit, processor unit receive the humiture signal that temperature and humidity sensor transmitted and with humiture electric signal storage arrive in the memory, display unit be used for showing the humiture signal that processor unit received.
Preferably, the processor unit includes an a/D conversion module and an MCU processor, and the a/D conversion module is configured to convert an analog temperature and humidity signal detected by the temperature and humidity sensor into a digital temperature and humidity signal and transmit the digital temperature and humidity signal to the MCU processor.
Preferably, the display unit is an LED dot matrix display screen, and the LED dot matrix display screen is connected to the processor unit through a display driver.
Preferably, the LED dot matrix screen is connected to a processor unit, and the processor unit controls the brightness of the LED dot matrix screen by controlling a duty ratio of the PWM wave.
Preferably, the memory unit comprises a main control memory and an expansion memory, both the main control memory and the expansion memory are connected with the processor unit, and a TTL communication protocol is adopted for data transmission.
Preferably, the processor unit is further connected with a wireless communication module, the wireless communication module is connected with the processor unit, and the wireless communication module is used for receiving an instruction of the user terminal and transmitting the instruction to the processor unit.
Preferably, the processor unit is further connected with an upper computer, and the upper computer is communicated with the processor unit through TTL serial communication, 485 communication or wireless communication.
Preferably, the processor unit is further connected with a plurality of control buttons, and the control buttons are used for controlling the working state of the processor unit.
Preferably, the invention further comprises an uninterruptible power supply, wherein the uninterruptible power supply provides electric energy for the processing unit, the display unit and the temperature and humidity sensor.
Compared with the traditional temperature and humidity recorder, the temperature and humidity recorder has the advantages that personnel do not need to pay attention to maintain the ink pen in real time, meanwhile, paper and manpower resources can be effectively saved, and meanwhile, recording broken files caused by insufficient paper or insufficient ink pen are avoided. The processor unit provided by the invention can be matched with the temperature and humidity sensor to realize real-time detection of temperature and humidity in the environment, and the received temperature and humidity information can be stored in the expansion memory through the processor unit for subsequent retrieval and query of the system and the upper computer; and the temperature and humidity detected by the temperature and humidity sensor can be displayed in real time through the display unit. The processor unit is also connected with a control button, and the state of the processor unit can be controlled through the control button, such as setting an alarm signal and time setting of the processor unit. The wireless communication module connected with the processor unit can also realize remote control, and the processor unit is controlled by a remote controller of the user terminal, so that the information displayed by the LED dot matrix screen is controlled. The processor unit, the display unit and the temperature and humidity sensor are also connected with an Uninterruptible Power Supply (UPS), so that the processor unit, the display unit and the temperature and humidity sensor can be powered on in a power-off state, the normal work of the temperature and humidity sensor is guaranteed, and the accuracy of the natural time and the reliability of the temperature and humidity sensor are further guaranteed.
Drawings
Fig. 1 is a circuit connection block diagram of the temperature and humidity display system of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The utility model provides a humiture display system that paperless can take notes in succession, including handling system unit, the display unit, temperature and humidity sensor and memory cell, the display unit, temperature and humidity sensor, the memory cell all is connected with the processor unit, temperature and humidity sensor is used for the humiture information of real-time detection environment and gives the processor unit with the humiture information transfer that detects, the processor unit receives the humiture signal that temperature and humidity sensor transmitted and with humiture electrical signal storage to the memory in, the display unit is used for showing the humiture signal that the processor unit received. The processor unit comprises an A/D conversion module and an MCU processor, wherein the A/D conversion module is used for converting temperature and humidity signals of analog quantity detected by the temperature and humidity sensor into temperature and humidity signals of digital quantity and transmitting the temperature and humidity signals to the MCU processor.
The display unit is an LED dot matrix display screen, the LED dot matrix display screen is connected with the processor unit through a display driver, and the processor unit controls the driving current of the display driver to control the brightness of the LED dot matrix display screen by controlling the duty ratio of the PWM wave; when the duty ratio is increased, the driving current of the display driver flowing through the LED dot matrix screen is increased, so that the brightness of the LED dot matrix screen is increased, and when the duty ratio of the PWM wave output by the processor unit is reduced, the driving current of the display driver flowing through the LED dot matrix screen is reduced, so that the brightness of the LED dot matrix screen is reduced; the brightness of the LED dot matrix screen can be controlled through the processor unit, if the processor unit is connected with the photoresistor, the resistance value of the photoresistor detected by the processor unit is lower when the external brightness is higher, and the brightness of the LED dot matrix screen is controlled by the processor unit to increase or decrease so that the LED dot matrix screen can be still clearly visible in the light; when the external brightness is low, the resistance value of the photosensitive resistor is larger at the moment, and the brightness of the LED dot matrix screen is controlled to be reduced by the processor unit. Because people pay attention to the luminous things in the dark environment, the brightness of the LED dot matrix screen is reduced in the dark environment, the display of the LED dot matrix screen cannot be influenced, and the energy consumption can be effectively reduced and the electric energy can be saved by adjusting the brightness of the LED dot matrix screen along with the external brightness.
The memory unit comprises a main control memory and an expansion memory, the main control memory and the expansion memory are both connected with the processor unit, and a TTL communication protocol is adopted for data transmission; the processor unit is also connected with an upper computer, and the upper computer is communicated with the processor unit through TTL serial communication, 485 communication or wireless communication; the upper computer can access the memory unit constantly through the processor unit, so that a user can conveniently inquire the stored temperature and humidity information; meanwhile, the processor unit can also access the upper computer through the network to update the natural time, so that the time displayed by the system is more accurate.
The processor unit is also connected with a wireless communication module, the wireless communication module is connected with the processor unit, and the wireless communication module is used for receiving the instruction of the user terminal and transmitting the instruction to the processor unit; the wireless communication module comprises an infrared transmitter and an infrared receiver, the infrared receiver is connected with the MCU processor of the processor unit through a remote control driving circuit, and the infrared transmitter is arranged on a remote controller of a user side; the remote control can be realized without manual control, and the convenience is improved.
The processor unit is also connected with 4 control buttons, which comprise a function key, an increase key, a decrease key and a reset key, wherein the function key, the increase key, the decrease key and the reset key are all connected with the MCU processor of the processor unit through a button driving circuit; the internal parameters of the processor unit, such as the displayed time, the upper temperature limit, the lower temperature limit, the upper humidity limit and the lower humidity limit, and the retrieval function, which need to be modified can be selected through the function keys.
The invention is provided with an uninterruptible power supply, and the uninterruptible power supply provides electric energy for the processing unit, the display unit and the temperature and humidity sensor; when the external power supply of the system is powered off, the uninterrupted power supply connected with the system can supply power to the system, so that the system can still be in a working state to detect and record the temperature and humidity information of the environment when the external power supply is powered off, and the stability and the reliability of the temperature and humidity display system are improved.
The working process of the invention is as follows: the system starts to work normally after the external power supply is switched on, and meanwhile, the uninterrupted power supply is connected with the processor unit, the display unit and the temperature and humidity sensor in the system to be used as a standby power supply. After normal work, firstly setting parameters of the processor unit through the control button, selecting time setting through the function key, manually setting a clock circuit of the processor unit to be natural time through an increase key and a decrease key, and transmitting a real-time clock signal to the display driving module through the processor unit to enable the LED dot matrix screen to display time information; then, selecting a temperature upper limit option through a function key, manually setting a temperature upper limit through an increase key and a decrease key, selecting a temperature lower limit option through the function key, manually setting a temperature lower limit through the increase key and the decrease key, selecting a humidity upper limit option through the function key, manually setting a humidity upper limit through the increase key and the decrease key, selecting a humidity lower limit option through the function key, manually setting a humidity lower limit through the increase key and the decrease key, after the setting is finished, placing a temperature and humidity sensor in an environment needing to detect temperature and humidity, collecting temperature and humidity information in the environment, transmitting the collected temperature and humidity information to a processor unit, controlling an A/D conversion module in the processor unit to convert analog signals of the temperature and humidity into recognizable temperature and humidity digital signals, and simultaneously sending the recognizable temperature and humidity digital signals to a display driving module by the processor unit, the display driving module controls the LED dot matrix screen to continuously display the temperature and humidity information in real time; at the moment, the processor unit corresponds the received temperature and humidity information and time one by one and stores the temperature and humidity information and the time into the memory unit; after the storage is finished, the upper computer can access and read the temperature and humidity information in the memory unit through the processor unit, and paperless continuous recording and searching are achieved.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. The paperless temperature and humidity display system capable of recording continuously is characterized by comprising a processing unit, a display unit, a temperature and humidity sensor and a memory unit, wherein the display unit, the temperature and humidity sensor and the memory unit are all connected with the processor unit, the temperature and humidity sensor is used for detecting temperature and humidity information of an environment in real time and transmitting the detected temperature and humidity information to the processor unit, the processor unit receives temperature and humidity signals transmitted by the temperature and humidity sensor and continuously stores the temperature and humidity electrical signals in the memory in real time, and the display unit is used for displaying the temperature and humidity signals received by the processor unit in real time.
2. The paperless continuous-recording humiture display system according to claim 1, wherein the processor unit comprises an a/D conversion module and an MCU processor, and the a/D conversion module is configured to convert analog humiture signals detected by the humiture sensor into digital humiture signals and transmit the digital humiture signals to the MCU processor.
3. The paperless continuous recordable temperature and humidity display system of claim 1, wherein the display unit is an LED dot matrix display screen, and the LED dot matrix display screen is connected to the processor unit through a display driver.
4. The paperless continuous recordable temperature and humidity display system of claim 3, wherein the LED dot matrix screen is connected to a processor unit, and the processor unit controls the brightness of the LED dot matrix screen by controlling the duty ratio of the PWM wave.
5. The paperless continuous recordable temperature and humidity display system as claimed in claim 1, wherein the memory unit comprises a main control memory and an expansion memory, and the main control memory and the expansion memory are both connected to the processor unit and perform data transmission using TTL communication protocol.
6. The paperless continuous recording humiture display system as claimed in claim 1, wherein the processor unit is further connected with a wireless communication module, the wireless communication module is connected with the processor unit, and the wireless communication module is configured to receive an instruction from a user terminal and transmit the instruction to the processor unit.
7. The paperless continuous temperature and humidity display module as claimed in claim 1, wherein the processor unit is further connected to a host computer, and the host computer communicates with the processor unit through TTL serial communication, 485 communication or wireless communication.
8. The paperless continuous recordable temperature and humidity display module as claimed in claim 1, wherein the processor unit is further connected with a plurality of control buttons, and the control buttons are used for controlling the working state of the processor unit.
9. The paperless continuous recordable humiture display system of claim 1, further comprising an uninterruptible power supply, wherein the uninterruptible power supply provides power to the processing unit, the display unit, and the humiture sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837215.1A CN110631632A (en) | 2019-09-05 | 2019-09-05 | Paperless temperature and humidity display system capable of recording continuously |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837215.1A CN110631632A (en) | 2019-09-05 | 2019-09-05 | Paperless temperature and humidity display system capable of recording continuously |
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| CN110631632A true CN110631632A (en) | 2019-12-31 |
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| CN201910837215.1A Pending CN110631632A (en) | 2019-09-05 | 2019-09-05 | Paperless temperature and humidity display system capable of recording continuously |
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