Temperature and humidity data acquisition terminal for textile storage warehouse

Abstract

A textile storage warehouse temperature and humidity data acquisition terminal comprises a single-chip microcomputer module, a GPRS module, a telescopic pipe, a short message module and a shell. The system also comprises a humidity acquisition device, a temperature acquisition device and a comparison circuit. One side of one telescopic pipe is installed on the outer side of the shell, the telescopic pipes are movably connected in a sleeved mode, the humidity collecting device is provided with a hygristor in a matched mode, the temperature collecting device is provided with a thermistor in a matched mode, and the hygristor and the thermistor are installed on the outer side of the other telescopic pipe; the single-chip microcomputer module, the GPRS module, the short message module, the humidity acquisition device, the temperature acquisition device and the comparison circuit are installed in the shell and electrically connected. According to the utility model, the interior of the textile can be detected, the acquisition and transmission modes are more flexible, and the use is more convenient; when temperature and humidity data of a detection area are abnormal, related personnel can be prompted in a short message active mode, so that the problem that the quality of textiles is adversely affected due to the fact that the related personnel do not watch the data actively in time when on-site temperature and humidity are abnormal is prevented.

Description

Technical Field

[0001] The utility model relates to the field of data acquisition equipment, in particular to a temperature and humidity data acquisition terminal for a textile storage warehouse. Background Art

[0002] In order to prevent textiles from being affected by adverse environmental factors and causing their performance to deteriorate during storage, high requirements are placed on the temperature and humidity of the environment. In the prior art, humidity and temperature detection equipment is generally installed in the warehouse. The staff uses the corresponding temperature data detected by the temperature and humidity detection equipment to cool or heat, dehumidify or humidify through other equipment when the temperature and humidity in the warehouse are abnormal, so that the textiles can be stored under appropriate temperature and humidity environmental conditions.

[0003] my country's patent number "201820656770.5" and patent name "Temperature and humidity detection device" record that "the temperature and humidity detection device of the utility model can effectively reduce the probability of corrosion and interference of the temperature and humidity sensor chip, has high reliability, and is conducive to maintaining accuracy in harsh external environments. The structure is simple and easy to mass produce." Although the comparative patent has achieved the technical effect of the invention described in it, it is limited by the structure and has the following technical shortcomings like other temperature and humidity detection devices in the field. First: When the temperature is abnormal, it is impossible to actively remind the relevant management personnel. When the relevant management personnel are not aware of the abnormal temperature and humidity in the warehouse (for example, they do not actively watch the temperature and humidity data received and displayed by the wireless receiving end PC or smart phone), they cannot go to the site in time for targeted processing, which will have an adverse impact on the normal and safe storage of textiles. Second, the existing temperature and humidity detection equipment is generally fixedly installed in the warehouse for detection, which is not convenient for detecting the inside of the textiles (for example, it is not convenient to detect the temperature and humidity inside the stacked cloth piles). Therefore, especially when the height of the stacked textiles is higher, the temperature and humidity data collected based on the temperature and humidity data detection in the warehouse cannot truly reflect the temperature and humidity data of the textiles. Utility Model Content

[0004] In order to overcome the drawbacks of the temperature and humidity detection equipment used in existing warehouses due to structural limitations as described in the background, the utility model provides a temperature and humidity data collection terminal for textile storage warehouses that can not only collect and display temperature and humidity data in the warehouse on-site, but also collect temperature and humidity data at corresponding positions in the textiles. The method of collecting and transmitting temperature and humidity data is more flexible and more convenient to use. In addition, when the temperature and humidity are abnormal, the terminal can actively remind relevant personnel by SMS, thereby preventing the relevant personnel from failing to actively view the data in time when the temperature and humidity are abnormal on site, which may adversely affect the quality of textiles in the warehouse.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A temperature and humidity data acquisition terminal for a textile storage warehouse comprises a single-chip microcomputer module, a GPRS module, a telescopic tube, a text message module, and a shell; the terminal is characterized in that it also comprises a humidity acquisition device, a temperature acquisition device, and a comparison circuit; there are multiple telescopic tubes, one side of which is installed on the outside of the shell, and the multiple telescopic tubes are movably connected, the humidity acquisition device is equipped with a humidity-sensitive resistor, and the temperature acquisition device is equipped with a thermistor, and the humidity-sensitive resistor and the thermistor are installed on the outside of another telescopic tube; the single-chip microcomputer module, the GPRS module, the text message module, the humidity acquisition device, the temperature acquisition device, and the comparison circuit are installed in the shell; the two-way signal input end of the single-chip microcomputer module is electrically connected to the comparison circuit and the signal input end of the temperature acquisition device, and the signal output end of the humidity acquisition device is electrically connected to the signal input end of the comparison circuit; the control signal end of the temperature acquisition device and the comparison circuit is electrically connected to the two-way signal input end of the text message module.

[0007] Preferably, the front end of the other telescopic tube is an oblique cone structure.

[0008] Preferably, the humidity collection device includes an operational amplifier and a diode, a resistor, and an adjustable resistor that are electrically connected, and is connected to a humidistat; the positive power supply input terminal of the operational amplifier is connected to one end of the humidistat; the other end of the humidistat is connected to one end of the first resistor and the non-inverting input terminal of the operational amplifier; the inverting input terminal of the operational amplifier is connected to one end of the second resistor and one end of the third resistor; the other end of the second resistor is connected to the other end of the first resistor and one end of the fourth resistor; the output terminal of the operational amplifier is connected to the positive electrode of the diode and the other end of the third resistor; the negative electrode of the diode is connected to one end of the adjustable resistor; and the other end of the adjustable resistor is connected to the other end of the fourth resistor.

[0009] Preferably, the comparison circuit includes an operational amplifier, a resistor, and a transistor that are electrically connected, the positive power supply input terminal of the operational amplifier is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the second resistor and the inverting input terminal of the operational amplifier, the output terminal of the operational amplifier is connected to one end of the third resistor, the other end of the third resistor is connected to the base of the transistor, and the emitter of the transistor is connected to the negative power supply input terminal of the operational amplifier.

[0010] Preferably, the temperature acquisition device includes an electrically connected resistor, an adjustable resistor, and a transistor, and is connected to a thermistor wire, one end of the thermistor is connected to one end of the adjustable resistor and one end of the resistor, the other end of the resistor is connected to the base of the transistor, and the emitter of the transistor is connected to the other end of the adjustable resistor.

[0011] Compared with the prior art, the utility model has the following beneficial effects: (1) the utility model can not only collect and wirelessly transmit the temperature and humidity data on site, but also, after the three telescopic tubes are lengthened and fixed, extend the length of the detection head composed of thermistor and hygrometer, thereby detecting the temperature and humidity inside the textile (for example, inserting it into multiple pieces of textiles stacked in a warehouse), and the method of collecting and transmitting temperature and humidity data is more flexible and more convenient to use; (2) through the joint action of the temperature collection device, the humidity collection device and the comparison circuit, when the temperature and humidity data in the detection area are abnormal, the relevant personnel can be promptly notified by SMS, thereby preventing the relevant personnel from failing to actively view the data in time when the temperature and humidity on site are abnormal, resulting in adverse effects on the quality of the textiles in the warehouse. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the overall structure of the telescopic tube of the utility model in an extended state.

[0014] Figure 2 Circuit diagram of the utility model. DETAILED DESCRIPTION

[0015] Figure 1 , 2 As shown in the figure, the temperature and humidity data acquisition terminal for a textile storage warehouse includes a battery G1 (12V / 5Ah), a charging socket CZ1, a power switch S1, a single-chip microcomputer module A3, a GPRS module A4, a telescopic tube, a text message module A2, and a shell 1; it also has a humidity acquisition device 2, a temperature acquisition device 3, and a comparison circuit 4; there are three telescopic tubes, the rear side end of the first telescopic tube 51 is welded to the middle of the front outer side end of the shell 1 and the interior is interconnected with the shell 1, the front inner side ends of the first telescopic tube 51 and the second telescopic tube 52 have internal threads, the rear outer sides of the second telescopic tube 52 and the third telescopic rod 53 have external threads, the rear outer side of the second telescopic tube 52 and the front inner side of the third telescopic tube 53 are connected together by threads, and the rear outer side of the first telescopic tube 51 is connected to the outer side of the third telescopic tube 53. The side and the front inner side of the second telescopic tube 52 are connected together by threads; the upper end of the front side of the third telescopic tube 53 has a groove 531, the humidity collection device is equipped with a humidity-sensitive resistor RP, and the temperature collection device is equipped with a thermistor WT. The humidity-sensitive resistor RP and the thermistor WT are installed on a small circuit board with a distance on the left and right. The lower end of the circuit board is glued in the groove 531 and the detection surfaces of the humidity-sensitive resistor RP and the thermistor WT are located at the upper part of the groove and are in the same plane as the upper end of the third telescopic tube 53; the battery G1, the charging socket CZ1, the power switch, the single-chip microcomputer module A3, the GPRS module A4, the SMS module A2, the humidity collection device 2, the temperature collection device 3, and the comparison circuit 4 are installed on the circuit board in the shell 1.

[0016] Figure 1 、 2As shown in the figure, the inner diameter of the first telescopic tube 51 is larger than the outer diameter of the second telescopic tube 52, the inner diameter of the second telescopic tube 52 is larger than the outer diameter of the third telescopic tube 53, the inner diameter of the front end internal thread of the first telescopic tube 51 matches the rear end external thread of the second telescopic tube 52, the inner diameter of the front end internal thread of the second telescopic tube 52 matches the rear end external thread of the third telescopic tube 53, and the front side end of the third telescopic tube 53 is an oblique cone structure (facilitating insertion into the detection area); the wires connected to the humidity resistor RP and the thermistor WT enter the housing 1 through the three hollow telescopic tubes. The humidity collection device includes an operational amplifier A and a diode VD, resistors R1, R2, R3, and R4, and an adjustable resistor RP1 connected via circuit board wiring, and is connected to the humidity-sensitive resistor RP via a wire. The positive power input terminal 4 of the operational amplifier A is connected to one end of the humidity-sensitive resistor RP, the other end of the humidity-sensitive resistor RP is connected to one end of the first resistor R1 and the in-phase input terminal 3 of the operational amplifier A, the inverting input terminal 2 of the operational amplifier A is connected to one end of the second resistor R2 and one end of the third resistor R3, the other end of the second resistor R2 is connected to the other end of the first resistor R1 and one end of the fourth resistor R4, the output terminal 1 of the operational amplifier A is connected to the positive electrode of the diode VD and the other end of the third resistor R3, the negative electrode of the diode VD is connected to one end of the adjustable resistor RP1, and the other end of the adjustable resistor RP1 is connected to the other end of the fourth resistor R4. The comparison circuit includes an operational amplifier A1 and resistors R, R5, R6, and transistor Q1 connected via circuit board wiring. Pin 7 of the positive power input terminal of the operational amplifier A1 is connected to one end of the first resistor R5, the other end of the first resistor R5 is connected to one end of the second resistor R6 and pin 2 of the inverting input terminal of the operational amplifier A1, pin 6 of the output terminal of the operational amplifier A1 is connected to one end of the third resistor R, the other end of the third resistor R is connected to the base of the transistor Q1, and the emitter of the transistor Q1 is connected to pin 4 of the negative power input terminal of the operational amplifier A1. The temperature acquisition device includes a resistor R7, an adjustable resistor RP1, and a transistor Q2 connected via circuit board wiring, and is connected to a thermistor WT via a wire. One end of the thermistor WT is connected to one end of the adjustable resistor RP1 and one end of the resistor R7, the other end of the resistor R7 is connected to the base of the transistor Q2, and the emitter of the transistor Q2 is connected to the other end of the adjustable resistor RP1. The two poles of the battery G1 and the two poles of the charging socket CZ1 are connected by wires (when the battery G1 is out of power, the external 12V power charger is inserted into the charging socket CZ1 to charge the battery G1), and are connected in series through the power switch S1 to the power input terminals 1 and 2 of the single-chip module A3, the power input terminals 1 and 2 of the GPRS module A4, the power input terminals 1 and 2 of the SMS module A2, the power input terminals 4 and 11 of the humidity acquisition device, the power input terminals of thermistor WT and the other end of the adjustable resistor RP1 of the temperature acquisition device, and the power input terminals 7 and 4 of the comparison circuit amplifier A1.The signal output end of the single-chip module A3 and the signal input end of the GPRS module A4 are connected via wires, the two-way signal input end pins 3 and 4 of the single-chip module A3 and one end of the signal output end resistor R4 of the humidity acquisition device and one end of the signal input end adjustable resistor RP1 of the temperature acquisition device are respectively connected via wires, and the other end of the signal output end adjustable resistor RP1 of the humidity acquisition device and the in-phase input end pin 3 of the signal input end op amp A1 of the comparison circuit are connected via wires. The collector of the control signal end transistor Q2 of the temperature acquisition device, the control signal end of the comparison circuit and the collector of the transistor Q1 are respectively connected to the two-way signal input end pins 4 and 3 of the SMS module A2 via wires.

[0017] Figure 1 , 2As shown in , the utility model can not only directly retract the three telescopic tubes to collect and display the temperature and humidity data in the warehouse on site; after the three telescopic tubes are stretched and fixed, the rear end of the telescopic tube 52 and the front end of the telescopic tube 53 are connected together through threaded extension, and the rear end of the telescopic tube 53 and the front end of the telescopic tube 52 are connected together through threaded extension, so that the length of the detection head composed of thermistors and humidity resistors can be extended (unscrewing between the telescopic tubes 52 and 53, unscrewing between the telescopic rods 51 and 52, the length of the three telescopic tubes can be shortened, which is convenient for collecting data in the warehouse), and then the temperature and humidity inside the textiles can be detected (for example, inserted into the inside of multiple textiles stacked and palletized in the warehouse), and the method of collecting and transmitting temperature and humidity data is more flexible and more convenient to use. After turning on the power switch S1, the single-chip microcomputer module A3, the GPRS module A4, the SMS module A2, the humidity collection device 2, the temperature collection device 3, and the comparison circuit 4 are powered on and work. After the humidity acquisition device is powered, when the humidity in the detected area is high, the resistance value of the humidity-sensitive resistor RP is relatively small, and the voltage divided between it and the resistor R1 is small. The voltage signal of the 12V power supply entering the 2nd foot of the op amp A1 through the humidity-sensitive resistor RP and the resistor R1 is relatively large. When the humidity in the detected area is low, the resistance value of the humidity-sensitive resistor RP is relatively large, and the voltage divided between it and the resistor R1 is large. The voltage signal of the 12V power supply entering the 2nd foot of the op amp A through the humidity-sensitive resistor RP and the resistor R1 is relatively small. As the humidity in the detected area changes, the signal voltage entering the 3rd foot of the op amp A is amplified by the op amp A (1001 times). After amplification, the signal is output through the 1st foot of the op amp A, and then fed back into the 2nd foot of the op amp A after the voltage is divided by the resistors R2 and R3, which can improve the stability of the circuit (prevent the circuit from self-excitation due to uncontrolled amplification). The voltage signal output by the op amp A is unidirectionally conducted by the diode VD and then divided by the adjustable resistor RP1 and the resistor R4, and enters the 3rd foot of the in-phase input terminal of the op amp A1 and the 3rd foot of the microcontroller module A3. When the humidity in the detection area is relatively low, the signal voltage at pin 3 of op amp A1 is lower than (for example, lower than 6V) the signal voltage at pin 2 of op amp A1 after voltage division by resistors R5 and R6 (about 6V), and pin 6 of op amp A1 outputs a low level. Then, pin 4 of SMS module A2 will not input a low level signal, and SMS module A2 will not send out SMS. When the humidity in the detection area is relatively high, the signal voltage at pin 3 of op amp A1 (for example, higher than 6V) is higher than the signal voltage at pin 2 of op amp A1 after voltage division by resistors R5 and R6. Pin 6 of op amp A1 outputs a high level. The high level is limited by resistor R and then reduced to the base of transistor Q1. Transistor Q1 conducts and the collector outputs a low level to pin 3 of SMS module A2. Then, pin 3 of SMS module A2 inputs a low level signal, and SMS module A2 will send out the first SMS stored internally.

[0018] Figure 1 , 2As shown, after the temperature acquisition device is powered, when the temperature of the detected area is high, the resistance value of the thermistor WT is relatively small, and the voltage between the thermistor WT and the resistor R1 is small. The 12V power supply enters the transistor Q2 and the 4-pin signal voltage of the single-chip module A3 through the thermistor RT and the adjustable resistor RP1, and the voltage is relatively high. Otherwise, it is relatively low. When the temperature of the detected area is relatively low, the thermistor WT has a high resistance value and a large voltage. The 12V power supply enters the transistor Q2 base through the thermistor RT and the adjustable resistor RP1, and the resistor R7 reduces the voltage and limits the current to less than 0.7V. The transistor Q2 will not be turned on, and then the 4-pin of the SMS module A2 will not input a low-level signal, and the SMS module A2 will not send out SMS. When the temperature in the detection area is relatively high, the resistance value of thermistor WT is small and the voltage is small. The 12V power supply is divided by thermistor RT and adjustable resistor RP1, and resistor R7 steps down and limits the current to enter the base of transistor Q2, which is higher than 0.7V. Transistor Q2 will conduct the collector and output a low level to the 4th pin of SMS module A2. Then, due to the low level signal input to the 4th pin of SMS module A2, SMS module A2 will send out the second SMS stored internally. Through the above, when the temperature and humidity in the detection area exceed the threshold, the new type can timely push SMS to the mobile phones of relevant remote personnel.

[0019] Figure 1 , 2 As shown, as the humidity changes on site, the temperature changes and the analog voltage signals entering the 3rd and 4th pins of the single-chip module A3 are converted into digital signals under the action of the internal circuit of the single-chip module A3 and enter the signal input end of the GPRS module A4. The GPRS module A4 transmits the two digital signals remotely by wireless means. After the application in the remote PC or smart phone receives the two data, the relevant personnel can visually understand the temperature and humidity data on site through visual observation. The new type, through the combined action of all the above technical solutions, can not only collect and wirelessly transmit the temperature and humidity data on site, but also extend the length of the detection head composed of thermistors and humidity resistors, and then detect the temperature and humidity inside the textiles (such as inserting into the multiple textiles stacked and stacked in the warehouse). The method of collecting and transmitting temperature and humidity data is more flexible and more convenient to use; when the temperature and humidity data in the detection area are abnormal, the relevant personnel can be prompted in time by SMS, which prevents the relevant personnel from not actively viewing the data in time when the temperature and humidity on site are abnormal, resulting in adverse effects on the quality of textiles in the warehouse. It should be noted that the single-chip microcomputer module A3 converts the input analog voltage signal (such as the water pressure data input by the water pressure sensor) into a digital signal, and then transmits it remotely via the GPRS module. The remote PC or smart phone receives and displays the data. This is an extremely mature Internet of Things data collection, transmission, reception and display technology. This application does not provide any protection for the above technology. This application protects the single-chip microcomputer module to collect on-site temperature and humidity data, the GPRS module to transmit the data, and the remote mobile phone to display the data.

[0020] Figure 2 As shown in the figure, the resistance values ​​of resistors R1, R2, R3, R4, R5, R6, R7, R are 10K, 5.1K, 5.1K, 10K, 10K, 10.1K, 47K, 47K; the models of transistors Q1 and Q2 are 9013 (NPN transistors); the resistance values ​​of adjustable resistors RP1 and RP2 are 470K (adjusted to 8.9K and 9.3K respectively); the model of op amp A1 is UA741; the model of op amp A is LM324N; the diode V Model D is 1N4007 (unidirectional conduction); thermistor WT is a negative temperature coefficient thermistor of model NTC-MF52AT; humidity-sensitive resistor RP is a finished humidity sensor of model HR202L; model GPRS module A4 is ZLAN8100; model of the main control chip of single-chip module A3 is STC12C5A60S2; models of transistors Q1 and Q2 are 9013 (NPN model); SMS module A2 is a SMS alarm module of model GSM 800, and the finished SMS alarm module has two power input terminals 1 and 2, and signal input ports 3-8. After a low-level signal is input to each signal input port, the finished SMS alarm module will send a SMS via the wireless mobile network. The SMS alarm module stores SMS messages. In this embodiment, two SMS messages of "overly high humidity" and "overly high temperature" are stored respectively. After a low-level signal is input to the signal input ports 3 and 4 of the SMS alarm module, the SMS alarm module can send a SMS message respectively.

[0021] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A temperature and humidity data acquisition terminal for a textile storage warehouse, comprising a single-chip microcomputer module, a GPRS module, a telescopic tube, a text message module, and a housing; characterized in that: It also has a humidity collection device, a temperature collection device, and a comparison circuit; there are multiple telescopic tubes, one side of which is installed on the outside of the shell, and the multiple telescopic tubes are movably connected, the humidity collection device is equipped with a humidity-sensitive resistor, and the temperature collection device is equipped with a thermistor, and the humidity-sensitive resistor and the thermistor are installed on the outside of another telescopic tube; the single-chip computer module, GPRS module, SMS module, humidity collection device, temperature collection device, and comparison circuit are installed in the shell; the two signal input ends of the single-chip computer module are electrically connected to the comparison circuit and the signal input end of the temperature collection device, respectively, and the signal output end of the humidity collection device is electrically connected to the signal input end of the comparison circuit; the control signal end of the temperature collection device and the comparison circuit is electrically connected to the two signal input ends of the SMS module.

2. The temperature and humidity data acquisition terminal for textile storage warehouse according to claim 1 is characterized in that: The front side end of the other telescopic tube is an oblique cone structure.

3. The temperature and humidity data acquisition terminal for textile storage warehouse according to claim 1 is characterized in that: The humidity collection device includes an operational amplifier and a diode, a resistor, and an adjustable resistor that are electrically connected, and is connected to a humidity-sensitive resistor. The positive power input terminal of the operational amplifier is connected to one end of the humidity-sensitive resistor, the other end of the humidity-sensitive resistor is connected to one end of the first resistor and the in-phase input terminal of the operational amplifier, the inverting input terminal of the operational amplifier is connected to one end of the second resistor and one end of the third resistor, the other end of the second resistor is connected to the other end of the first resistor and one end of the fourth resistor, the output terminal of the operational amplifier is connected to the positive electrode of the diode and the other end of the third resistor, the negative electrode of the diode is connected to one end of the adjustable resistor, and the other end of the adjustable resistor is connected to the other end of the fourth resistor.

4. The temperature and humidity data acquisition terminal for textile storage warehouse according to claim 1 is characterized in that: The comparison circuit includes an operational amplifier, a resistor, and a transistor that are electrically connected. The positive power supply input terminal of the operational amplifier is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the second resistor and the inverting input terminal of the operational amplifier, the output terminal of the operational amplifier is connected to one end of the third resistor, the other end of the third resistor is connected to the base of the transistor, and the emitter of the transistor is connected to the negative power supply input terminal of the operational amplifier.

5. The temperature and humidity data acquisition terminal for textile storage warehouse according to claim 1, characterized in that: The temperature acquisition device includes an electrically connected resistor, an adjustable resistor, and a transistor, and is connected to a thermistor wire. One end of the thermistor is connected to one end of the adjustable resistor and one end of the resistor, the other end of the resistor is connected to the transistor base, and the transistor emitter is connected to the other end of the adjustable resistor.

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