CN211234535U - Temperature and humidity sensing device - Google Patents
Temperature and humidity sensing device Download PDFInfo
- Publication number
- CN211234535U CN211234535U CN201922245341.6U CN201922245341U CN211234535U CN 211234535 U CN211234535 U CN 211234535U CN 201922245341 U CN201922245341 U CN 201922245341U CN 211234535 U CN211234535 U CN 211234535U
- Authority
- CN
- China
- Prior art keywords
- voltage
- resistor
- temperature
- voltage conversion
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 119
- 238000012544 monitoring process Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims description 95
- 239000003990 capacitor Substances 0.000 claims description 51
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 238000007600 charging Methods 0.000 claims description 7
- 238000010277 constant-current charging Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model provides a temperature and humidity sensing device, which comprises a shell, wherein a main circuit board is arranged in the shell, a control module is arranged on the main circuit board, and the control module is connected with a power module, a temperature and humidity acquisition module, a data transmission module and a voltage monitoring module; the data transmission module is connected with a remote control module; the power module comprises a battery; the data transmission module comprises a wireless transmission module and a wired transmission module. The temperature and humidity sensing device provided by the utility model integrates temperature data processing and can transmit the temperature data to the remote control module; the integrated power supply is used for processing, the power is supplied by a battery, the battery can be charged by an external power supply, the use is convenient, and the integrated power supply is suitable for quick access application of warehouses, greenhouses, machine rooms and family scenes.
Description
Technical Field
The utility model belongs to the technical field of the environment measuring, concretely relates to humiture sensing device.
Background
The temperature and humidity detection is urgently needed in various environments of warehouses, greenhouses, machine rooms and families, and becomes the most common environment detection. Most of existing temperature and humidity detection products are temperature and humidity sensors with single functions, secondary development is usually needed during use, a user is required to process collected temperature and humidity data, a power supply is processed, data transmission is processed, time and labor are wasted, and the requirements of common people cannot be met.
Therefore, it is very necessary to provide a temperature and humidity sensing device for overcoming the above drawbacks in the prior art.
Disclosure of Invention
Most be function singleness to current temperature and humidity measurement product, need the secondary development during the use, defect that wastes time and energy, the utility model provides a temperature and humidity sensing device to solve above-mentioned technical problem.
The utility model provides a temperature and humidity sensing device, which comprises a shell, wherein a main circuit board is arranged in the shell, a control module is arranged on the main circuit board, and the control module is connected with a power module, a temperature and humidity acquisition module, a data transmission module and a voltage monitoring module; the data transmission module is connected with a remote control module;
the power module comprises a battery;
the data transmission module comprises a wireless transmission module and a wired transmission module.
Further, the temperature and humidity acquisition module comprises a temperature and humidity sensor which is arranged inside the shell;
the control module comprises a temperature and humidity acquisition end, and the temperature and humidity acquisition end is connected with the temperature and humidity sensor;
the temperature and humidity sensor adopts SHT20 model. The control module collects temperature and humidity data from the temperature and humidity sensor through the temperature and humidity collection end.
Furthermore, the power module also comprises a first voltage conversion unit, a battery management unit, a second voltage conversion unit and a transmission voltage conversion unit;
the first voltage conversion unit is connected with an external power interface, and the battery management unit is connected with the first voltage conversion unit, the second voltage conversion unit and the battery; the second voltage conversion unit is connected with the transmission voltage conversion unit. The utility model discloses a humiture sensing device is from taking each way power conversion to provide different module application.
Further, the first voltage conversion unit includes a first voltage conversion chip U9, and U9 includes an input terminal, an enable terminal, a self-boosting terminal, a switch control terminal, and a feedback terminal;
the input end of the first voltage conversion chip U9 is connected with a first capacitor C31, a second capacitor C32 and a first resistor R32, and the input end of the first voltage conversion chip U9 is also connected with an external power interface; the other end of the first capacitor C31 is grounded, and the other end of the second capacitor C32 is grounded; the other end of the first resistor R32 is connected with the enable end of the first voltage conversion chip U9, the enable end of the first voltage conversion chip U9 is also connected with a second resistor R46, and the other end of the second resistor R46 is connected with the ground end and is grounded;
the self-boosting end of the first voltage conversion chip U9 is connected with a third capacitor C33, and the other end of the third capacitor C33 is connected with the switch control end of the first voltage conversion chip U9;
a switch control end of the first voltage conversion chip U9 is connected with a zener diode D11 and an inductor L4, and the other end of the inductor L4 is connected with a fourth capacitor C35, a fifth capacitor C36, a third resistor R33 and a first output voltage end VIN;
the negative electrode of the voltage stabilizing diode D11 is connected with the switch control end of the first voltage conversion chip U9, and the positive electrode of the voltage stabilizing diode D11 is grounded;
the other end of the fourth capacitor C35 is connected with the other end of the fifth capacitor C36 and is grounded;
the other end of the third resistor R33 is connected with the feedback end of the first voltage conversion chip U9, the other end of the third resistor R33 is also connected with a fourth resistor R38, and the other end of the fourth resistor R38 is grounded. The first voltage conversion unit converts the 12V input of the external power interface into the output of 4V through the first voltage conversion chip U9 and provides the output to the battery management unit.
Further, the battery management unit comprises a battery management chip U4, and the battery management chip U4 comprises a battery temperature detection input end, a constant current charging current setting end, a grounding end, an input end, an enabling end, a charging state indicating end, a battery fault state indicating end and a battery connecting end; the constant-current charging current setting end of the battery management chip U4 is connected with a fifth resistor R8, and the other end of the fifth resistor R8 is connected with the battery temperature detection input end and the grounding end of the battery management chip U4 and is grounded;
the input end of the battery management chip U4 is connected with a sixth capacitor C12, and the other end of the sixth capacitor C12 is grounded; the input end of the battery management chip U4 is further connected to the first output voltage end VIN of the first voltage conversion unit;
the enable terminal of the battery management chip U4 is also connected to the first output voltage terminal VIN of the first voltage conversion unit;
a charging state indicating end of the battery management chip U4 is connected with a sixth resistor R10, the other end of the sixth resistor R10 is connected with an indicating diode LED1, the cathode of the indicating diode LED1 is connected with a sixth resistor R10, and the anode of the indicating diode LED1 is connected with the anode of the battery;
the battery fault state indicating end of the battery management chip U4 is grounded;
the battery connecting end of the battery management chip U4 is connected with a seventh capacitor C13 and a first MOS tube Q1, the battery connecting end of the battery management chip U4 is further connected with the anode of the battery, the drain electrode of the first MOS tube Q1 is connected with the battery connecting end of the battery management chip U4, the grid electrode of the first MOS tube Q1 is connected with a seventh resistor R40, the grid electrode of the first MOS tube Q1 is further connected with a first output voltage end VIN of the first voltage conversion unit, and the other end of the seventh resistor R40 is grounded;
the source electrode of the first MOS transistor Q1 is connected with a second voltage stabilizing diode D13 and a second voltage output end VCC;
the cathode of the second zener diode D13 is connected to the source of the first MOS transistor Q1, and the anode of the second zener diode D13 is connected to the first output voltage terminal VIN of the first voltage converting unit. The battery management unit realizes charging and discharging of the battery through the battery management chip U4, and the output voltage VCC is provided to the second voltage conversion unit.
Further, the second voltage conversion unit includes a second voltage conversion chip U3, and the second voltage conversion chip U3 includes an input terminal, an output terminal, and a ground terminal;
the input end of the second voltage conversion chip U3 is connected with an eighth capacitor C2, the input end of the second voltage conversion chip U3 is further connected with a second voltage output end VCC of the battery management unit, and the output end of the second voltage conversion chip U3 is connected with a ninth capacitor C3 and a third voltage output end VCC3V 3;
the other end of the eighth capacitor C2 is connected to the other end of the ninth capacitor C3 and the ground terminal of the second voltage converting chip U3, and is grounded. The second voltage conversion unit converts VCC to 3.3V output through the second voltage conversion chip U3, and provides it to the transmission voltage conversion unit.
Further, the transmission voltage conversion unit comprises a triode Q1 and a second MOS transistor Q3; the base electrode of the triode Q1 is connected with an eighth resistor R25 and a ninth resistor R26, the other end of the eighth resistor R25 is connected with a transmission control end, and the other end of the ninth resistor is connected with the emitting electrode of the triode Q1 and is grounded; the transmission control end is connected with the control module;
the fifth collector of the triode Q1 is connected to the gate of the second MOS transistor Q3, the gate of the second MOS transistor Q3 is further connected to a tenth resistor R24, the source of the second MOS transistor Q3 is connected to the other end of the tenth resistor R24 and the third voltage output terminal VCC3V3 of the second voltage conversion unit, and the drain of the second MOS transistor Q3 is further connected to a transmission voltage output terminal 485 VCC. The control module controls the transmission conversion unit to convert 3.3V into 485VCC required by 485 transmission through controlling the transmission control end, and is used for providing a power supply for remote 485 transmission.
Further, the wired transmission module comprises a 485 transmission unit;
the wireless transmission module comprises a narrow band NB-IOT transmission unit, a GPRS transmission unit and an LORA transmission unit;
the 485 transmission unit, the narrowband NB-IOT transmission unit, the GPRS transmission unit and the LORA transmission unit are all connected with the control module;
the 485 transmission unit is connected with the remote control module through a 485 transmission interface;
the narrow-band NB-IOT transmission unit, the GPRS transmission unit and the LORA transmission unit are all in wireless connection with the remote control module through the antenna. The temperature data and the monitoring data can be transmitted to the remote control module in various wired and wireless modes.
Further, the voltage monitoring module comprises a battery voltage monitoring unit and a transmission voltage monitoring unit; the control module comprises a battery voltage sampling end ADC and a transmission voltage sampling end ADJ;
the battery voltage monitoring unit comprises an eleventh resistor R5 and a twelfth resistor R6, one end of the eleventh resistor R5 is connected with the positive electrode of the battery, the other end of the eleventh resistor R3526 is connected with the twelfth resistor R6 and the battery voltage sampling end ADC, and the other end of the twelfth resistor R6 is grounded;
the transmission voltage monitoring unit comprises a thirteenth resistor R31 and a fourteenth resistor R23, one end of the thirteenth resistor R31 is connected with the transmission voltage output end 485VCC, the other end of the thirteenth resistor R3526 is connected with the fourteenth resistor R23 and the transmission voltage sampling end ADJ, and the other end of the fourteenth resistor R23 is grounded. The battery voltage and the transmission voltage are monitored through the control module, the working condition of the battery is mastered, the 485 remote data transmission condition is mastered, and problems are found in time.
Furthermore, ear hooks are uniformly arranged outside the shell; the antenna and the 485 transmission interface are arranged at the lower part of the shell; the external power interface is arranged on the upper part of the shell. The ear-hang is used for realizing the quick installation of the temperature and humidity sensing device.
Further, the control module includes an STM32 chip.
The utility model has the advantages that,
the temperature and humidity sensing device provided by the utility model integrates temperature data processing and can transmit the temperature data to the remote control module; the integrated power supply is used for processing, the power is supplied by a battery, the battery can be charged by an external power supply, the use is convenient, and the integrated power supply is suitable for quick access application of warehouses, greenhouses, machine rooms and family scenes.
Furthermore, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.
Therefore, compared with the prior art, the utility model has the substantive characteristics and the progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the system connection of the present invention;
FIG. 2 is a schematic diagram of the connection of a power supply module;
fig. 3 is a circuit schematic of the first voltage converting unit;
FIG. 4 is a circuit schematic of a battery management unit;
fig. 5 is a circuit schematic of a second voltage converting unit;
fig. 6 is a circuit schematic diagram of a transmission voltage conversion unit;
FIG. 7 is a schematic circuit diagram of a battery voltage monitoring unit;
FIG. 8 is a circuit schematic of a transmission voltage monitoring unit;
fig. 9 is an external structural view of the present invention;
wherein, 1-a control module; 2-a power supply module; 2.1-battery; 2.2-a first voltage conversion unit; 2.3-battery management unit; 2.4-a second voltage conversion unit; 2.5-transmission voltage conversion unit; 3, a temperature and humidity acquisition module; 4-a data transmission module; 5-a voltage monitoring module; 6-remote control module; 7-an antenna; 8, hanging the ears; 9-a housing; 10-an external power interface; 11-485 transmission interface.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1, the utility model provides a temperature and humidity sensing device, which comprises a shell 9, wherein a main circuit board is arranged in the shell 9, a control module 1 is arranged on the main circuit board, and the control module 1 is connected with a power module 2, a temperature and humidity acquisition module 3, a data transmission module 4 and a voltage monitoring module 5; the data transmission module 4 is connected with a remote control module 6;
the power module 2 comprises a battery 2.1;
the data transmission module 4 comprises a wireless transmission module and a wired transmission module;
the temperature and humidity acquisition module 3 comprises a temperature and humidity sensor which is arranged inside the shell 9;
the control module 1 comprises a temperature and humidity acquisition end, and the temperature and humidity acquisition end is connected with a temperature and humidity sensor;
the temperature and humidity sensor adopts SHT20 model.
Example 2:
as shown in fig. 1, the utility model provides a temperature and humidity sensing device, which comprises a shell 9, wherein a main circuit board is arranged in the shell 9, a control module 1 is arranged on the main circuit board, and the control module 1 is connected with a power module 2, a temperature and humidity acquisition module 3, a data transmission module 4 and a voltage monitoring module 5; the data transmission module 4 is connected with a remote control module 6;
the power module 2 comprises a battery 2.1;
the data transmission module 4 comprises a wireless transmission module and a wired transmission module;
the temperature and humidity acquisition module 3 comprises a temperature and humidity sensor which is arranged inside the shell 9;
the control module 1 comprises a temperature and humidity acquisition end, and the temperature and humidity acquisition end is connected with a temperature and humidity sensor;
the temperature and humidity sensor adopts an SHT20 model;
as shown in fig. 2, the power module 2 further includes a first voltage conversion unit 2.2, a battery management unit 2.3, a second voltage conversion unit 2.4, and a transmission voltage conversion unit 2.5;
the first voltage conversion unit 2.2 is connected with an external power interface 10, and the battery management unit 2.3 is connected with the first voltage conversion unit 2.2, the second voltage conversion unit 2.4 and the battery 2.1; the second voltage conversion unit 2.4 is connected to the transmission voltage conversion unit 2.5;
as shown in fig. 3, the first voltage conversion unit 2.2 includes a first voltage conversion chip U9, and the U9 includes an input terminal, an enable terminal, a self-boosting terminal, a switch control terminal, and a feedback terminal;
the input end of the first voltage conversion chip U9 is connected with a first capacitor C31, a second capacitor C32 and a first resistor R32, and the input end of the first voltage conversion chip U9 is also connected with the external power interface 10; the other end of the first capacitor C31 is grounded, and the other end of the second capacitor C32 is grounded; the other end of the first resistor R32 is connected with the enable end of the first voltage conversion chip U9, the enable end of the first voltage conversion chip U9 is also connected with a second resistor R46, and the other end of the second resistor R46 is connected with the ground end and is grounded;
the self-boosting end of the first voltage conversion chip U9 is connected with a third capacitor C33, and the other end of the third capacitor C33 is connected with the switch control end of the first voltage conversion chip U9;
a switch control end of the first voltage conversion chip U9 is connected with a zener diode D11 and an inductor L4, and the other end of the inductor L4 is connected with a fourth capacitor C35, a fifth capacitor C36, a third resistor R33 and a first output voltage end VIN;
the negative electrode of the voltage stabilizing diode D11 is connected with the switch control end of the first voltage conversion chip U9, and the positive electrode of the voltage stabilizing diode D11 is grounded;
the other end of the fourth capacitor C35 is connected with the other end of the fifth capacitor C36 and is grounded;
the other end of the third resistor R33 is connected with the feedback end of the first voltage conversion chip U9, the other end of the third resistor R33 is also connected with a fourth resistor R38, and the other end of the fourth resistor R38 is grounded;
as shown in fig. 4, the battery management unit 2.3 includes a battery management chip U4, and the battery management chip U4 includes a battery temperature detection input terminal, a constant current charging current setting terminal, a ground terminal, an input terminal, an enable terminal, a charging state indicating terminal, a battery fault state indicating terminal, and a battery connection terminal;
the constant-current charging current setting end of the battery management chip U4 is connected with a fifth resistor R8, and the other end of the fifth resistor R8 is connected with the battery temperature detection input end and the grounding end of the battery management chip U4 and is grounded;
the input end of the battery management chip U4 is connected with a sixth capacitor C12, and the other end of the sixth capacitor C12 is grounded; the input end of the battery management chip U4 is further connected to the first output voltage end VIN of the first voltage conversion unit 2.2;
the enable terminal of the battery management chip U4 is also connected to the first output voltage terminal VIN of the first voltage conversion unit 2.2;
the charging state indicating end of the battery management chip U4 is connected with a sixth resistor R10, the other end of the sixth resistor R10 is connected with an indicating diode LED1, the cathode of the indicating diode LED1 is connected with a sixth resistor R10, and the anode of the indicating diode LED1 is connected with the anode of the battery 2.1;
the battery fault state indicating end of the battery management chip U4 is grounded;
the battery connection end of the battery management chip U4 is connected with a seventh capacitor C13 and a first MOS transistor Q1, the battery connection end of the battery management chip U4 is further connected with the positive electrode of the battery 2.1, the drain electrode of the first MOS transistor Q1 is connected with the battery connection end of the battery management chip U4, the gate of the first MOS transistor Q1 is connected with a seventh resistor R40, the gate of the first MOS transistor Q1 is further connected with the first output voltage end VIN of the first voltage conversion unit 2.2, and the other end of the seventh resistor R40 is grounded;
the source electrode of the first MOS transistor Q1 is connected with a second voltage stabilizing diode D13 and a second voltage output end VCC;
the cathode of the second zener diode D13 is connected to the source of the first MOS transistor Q1, and the anode of the second zener diode D13 is connected to the first output voltage terminal VIN of the first voltage converting unit 2.2;
as shown in fig. 5, the second voltage converting unit 2.4 includes a second voltage converting chip U3, the second voltage converting chip U3 includes an input terminal, an output terminal, and a ground terminal;
the input end of the second voltage conversion chip U3 is connected with an eighth capacitor C2, the input end of the second voltage conversion chip U3 is further connected with a second voltage output end VCC of the battery management unit 2.3, and the output end of the second voltage conversion chip U3 is connected with a ninth capacitor C3 and a third voltage output end VCC3V 3;
the other end of the eighth capacitor C2 is connected to the other end of the ninth capacitor C3 and the ground terminal of the second voltage conversion chip U3, and is grounded;
as shown in fig. 6, the transmission voltage converting unit 2.5 includes a transistor Q1 and a second MOS transistor Q3;
the base electrode of the triode Q1 is connected with an eighth resistor R25 and a ninth resistor R26, the other end of the eighth resistor R25 is connected with a transmission control end LORA TX, and the other end of the ninth resistor R26 is connected with the emitter electrode of the triode Q1 and is grounded; the transmission control end is connected with the control module 1;
the fifth collector of the triode Q1 is connected to the gate of the second MOS transistor Q3, the gate of the second MOS transistor Q3 is further connected to a tenth resistor R24, the source of the second MOS transistor Q3 is connected to the other end of the tenth resistor R24 and the third voltage output terminal VCC3V3 of the second voltage conversion unit 2.4, and the drain of the second MOS transistor Q3 is further connected to a transmission voltage output terminal 485 VCC.
Example 3:
as shown in fig. 1, the utility model provides a temperature and humidity sensing device, which comprises a shell 9, wherein a main circuit board is arranged in the shell 9, a control module 1 is arranged on the main circuit board, and the control module 1 is connected with a power module 2, a temperature and humidity acquisition module 3, a data transmission module 4 and a voltage monitoring module 5; the data transmission module 4 is connected with a remote control module 6; control module 1 includes an STM32 chip;
the power module 2 comprises a battery 2.1;
the data transmission module 4 comprises a wireless transmission module and a wired transmission module;
the temperature and humidity acquisition module 3 comprises a temperature and humidity sensor which is arranged inside the shell 9;
the control module 1 comprises a temperature and humidity acquisition end, and the temperature and humidity acquisition end is connected with a temperature and humidity sensor;
the temperature and humidity sensor adopts an SHT20 model;
the wired transmission module comprises a 485 transmission unit;
the wireless transmission module comprises a narrow band NB-IOT transmission unit, a GPRS transmission unit and an LORA transmission unit;
the 485 transmission unit, the narrowband NB-IOT transmission unit, the GPRS transmission unit and the LORA transmission unit are all connected with the control module 1;
the 485 transmission unit is connected with the remote control module 6 through a 485 transmission interface 11;
the narrow-band NB-IOT transmission unit, the GPRS transmission unit and the LORA transmission unit are all in wireless connection with the remote control module 6 through an antenna 7;
as shown in fig. 7 and 8, the voltage monitoring module 5 includes a battery voltage monitoring unit and a transmission voltage monitoring unit; the control module 1 comprises a battery voltage sampling end ADC and a transmission voltage sampling end ADJ;
the battery voltage monitoring unit comprises an eleventh resistor R5 and a twelfth resistor R6, one end of the eleventh resistor R5 is connected with the positive electrode of the battery, the other end of the eleventh resistor R3526 is connected with the twelfth resistor R6 and the battery voltage sampling end ADC, and the other end of the twelfth resistor R6 is grounded;
the transmission voltage monitoring unit comprises a thirteenth resistor R31 and a fourteenth resistor R23, one end of the thirteenth resistor R31 is connected with the transmission voltage output end 485VCC, the other end of the thirteenth resistor R3526 is connected with the fourteenth resistor R23 and the transmission voltage sampling end ADJ, and the other end of the fourteenth resistor R23 is grounded;
as shown in fig. 9, ear hooks 8 are uniformly arranged outside the shell; the antenna 7 and the 485 transmission interface 11 are arranged at the lower part of the shell 9;
an external power supply interface 10 is provided at an upper portion of the housing 9.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A temperature and humidity sensing device is characterized by comprising a shell (9), wherein a main circuit board is arranged in the shell (9), a control module (1) is arranged on the main circuit board, and the control module (1) is connected with a power module (2), a temperature and humidity acquisition module (3), a data transmission module (4) and a voltage monitoring module (5); the data transmission module (4) is connected with a remote control module (6); the power module (2) comprises a battery (2.1);
the data transmission module (4) comprises a wireless transmission module and a wired transmission module.
2. The temperature and humidity sensing device according to claim 1, wherein the temperature and humidity acquisition module (3) comprises a temperature and humidity sensor, and the temperature and humidity sensor is arranged inside the housing (9); the control module (1) comprises a temperature and humidity acquisition end, and the temperature and humidity acquisition end is connected with a temperature and humidity sensor.
3. The temperature and humidity sensing device according to claim 1, wherein the power module (2) further comprises a first voltage conversion unit (2.2), a battery management unit (2.3), a second voltage conversion unit (2.4) and a transmission voltage conversion unit (2.5);
the first voltage conversion unit (2.2) is connected with an external power interface (10), and the battery management unit (2.3) is connected with the first voltage conversion unit (2.2), the second voltage conversion unit (2.4) and the battery (2.1); the second voltage conversion unit (2.4) is connected to the transmission voltage conversion unit (2.5).
4. The temperature and humidity sensing device according to claim 3, wherein the first voltage conversion unit (2.2) comprises a first voltage conversion chip U9, and the U9 comprises an input terminal, an enable terminal, a self-boosting terminal, a switch control terminal and a feedback terminal;
the input end of the first voltage conversion chip U9 is connected with a first capacitor C31, a second capacitor C32 and a first resistor R32, and the input end of the first voltage conversion chip U9 is also connected with an external power interface (10); the other end of the first capacitor C31 is grounded, and the other end of the second capacitor C32 is grounded; the other end of the first resistor R32 is connected with the enable end of the first voltage conversion chip U9, the enable end of the first voltage conversion chip U9 is also connected with a second resistor R46, and the other end of the second resistor R46 is connected with the ground end and is grounded;
the self-boosting end of the first voltage conversion chip U9 is connected with a third capacitor C33, and the other end of the third capacitor C33 is connected with the switch control end of the first voltage conversion chip U9;
a switch control end of the first voltage conversion chip U9 is connected with a zener diode D11 and an inductor L4, and the other end of the inductor L4 is connected with a fourth capacitor C35, a fifth capacitor C36, a third resistor R33 and a first output voltage end VIN;
the negative electrode of the voltage stabilizing diode D11 is connected with the switch control end of the first voltage conversion chip U9, and the positive electrode of the voltage stabilizing diode D11 is grounded;
the other end of the fourth capacitor C35 is connected with the other end of the fifth capacitor C36 and is grounded;
the other end of the third resistor R33 is connected with the feedback end of the first voltage conversion chip U9, the other end of the third resistor R33 is also connected with a fourth resistor R38, and the other end of the fourth resistor R38 is grounded.
5. The temperature and humidity sensing device according to claim 3, wherein the battery management unit (2.3) comprises a battery management chip U4, and the battery management chip U4 comprises a battery temperature detection input terminal, a constant current charging current setting terminal, a grounding terminal, an input terminal, an enabling terminal, a charging state indicating terminal, a battery fault state indicating terminal and a battery connecting terminal;
the constant-current charging current setting end of the battery management chip U4 is connected with a fifth resistor R8, and the other end of the fifth resistor R8 is connected with the battery temperature detection input end and the grounding end of the battery management chip U4 and is grounded;
the input end of the battery management chip U4 is connected with a sixth capacitor C12, and the other end of the sixth capacitor C12 is grounded; the input end of the battery management chip U4 is also connected with a first output voltage end VIN of the first voltage conversion unit (2.2);
the enabling terminal of the battery management chip U4 is also connected with the first output voltage terminal VIN of the first voltage conversion unit (2.2);
the charging state indicating end of the battery management chip U4 is connected with a sixth resistor R10, the other end of the sixth resistor R10 is connected with an indicating diode LED1, the cathode of the indicating diode LED1 is connected with a sixth resistor R10, and the anode of the indicating diode LED1 is connected with the anode of the battery (2.1); the battery fault state indicating end of the battery management chip U4 is grounded;
the battery connecting end of the battery management chip U4 is connected with a seventh capacitor C13 and a first MOS tube Q1, the battery connecting end of the battery management chip U4 is further connected with the anode of a battery (2.1), the drain electrode of the first MOS tube Q1 is connected with the battery connecting end of the battery management chip U4, the grid electrode of the first MOS tube Q1 is connected with a seventh resistor R40, the grid electrode of the first MOS tube Q1 is further connected with a first output voltage end VIN of a first voltage conversion unit (2.2), and the other end of the seventh resistor R40 is grounded;
the source electrode of the first MOS transistor Q1 is connected with a second voltage stabilizing diode D13 and a second voltage output end VCC;
the cathode of the second zener diode D13 is connected to the source of the first MOS transistor Q1, and the anode of the second zener diode D13 is connected to the first output voltage terminal VIN of the first voltage converting unit (2.2).
6. The temperature and humidity sensing device according to claim 3, wherein the second voltage converting unit (2.4) includes a second voltage converting chip U3, the second voltage converting chip U3 includes an input terminal, an output terminal and a ground terminal;
the input end of the second voltage conversion chip U3 is connected with an eighth capacitor C2, the input end of the second voltage conversion chip U3 is also connected with a second voltage output end VCC of the battery management unit (2.3), and the output end of the second voltage conversion chip U3 is connected with a ninth capacitor C3 and a third voltage output end VCC3V 3;
the other end of the eighth capacitor C2 is connected to the other end of the ninth capacitor C3 and the ground terminal of the second voltage converting chip U3, and is grounded.
7. The temperature and humidity sensing device according to claim 3, wherein the transmission voltage converting unit (2.5) comprises a triode Q1 and a second MOS transistor Q3;
the base electrode of the triode Q1 is connected with an eighth resistor R25 and a ninth resistor R26, the other end of the eighth resistor R25 is connected with a transmission control end LORA TX, and the other end of the ninth resistor R26 is connected with the emitter electrode of the triode Q1 and is grounded; the transmission control end is connected with the control module (1);
the fifth collector of the triode Q1 is connected to the gate of the second MOS transistor Q3, the gate of the second MOS transistor Q3 is further connected to a tenth resistor R24, the source of the second MOS transistor Q3 is connected to the other end of the tenth resistor R24 and the third voltage output terminal VCC3V3 of the second voltage conversion unit (2.4), and the drain of the second MOS transistor Q3 is further connected to a transmission voltage output terminal 485 VCC.
8. The temperature and humidity sensing device according to claim 7, wherein the wired transmission module includes a 485 transmission unit;
the wireless transmission module comprises a narrow band NB-IOT transmission unit, a GPRS transmission unit and an LORA transmission unit;
the 485 transmission unit, the narrowband NB-IOT transmission unit, the GPRS transmission unit and the LORA transmission unit are all connected with a control module (1);
the 485 transmission unit is connected with the remote control module (6) through a 485 transmission interface (11); the narrow-band NB-IOT transmission unit, the GPRS transmission unit and the LORA transmission unit are all in wireless connection with the remote control module (6) through an antenna (7).
9. The temperature and humidity sensing device according to claim 1, wherein the voltage monitoring module (5) comprises a battery voltage monitoring unit and a transmission voltage monitoring unit.
10. The temperature and humidity sensing device according to claim 1, wherein ear hooks (8) are uniformly arranged outside the shell;
the antenna (7) and the 485 transmission interface (11) are arranged at the lower part of the shell;
an external power supply interface (10) is arranged on the upper part of the shell.
11. Temperature and humidity sensing device according to claim 1, characterized in that the control module (1) comprises an STM32 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922245341.6U CN211234535U (en) | 2019-12-13 | 2019-12-13 | Temperature and humidity sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922245341.6U CN211234535U (en) | 2019-12-13 | 2019-12-13 | Temperature and humidity sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211234535U true CN211234535U (en) | 2020-08-11 |
Family
ID=71917907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922245341.6U Expired - Fee Related CN211234535U (en) | 2019-12-13 | 2019-12-13 | Temperature and humidity sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211234535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110170A (en) * | 2021-04-14 | 2021-07-13 | 许昌市第二中学 | Multi-path voltage output type sensor control circuit |
-
2019
- 2019-12-13 CN CN201922245341.6U patent/CN211234535U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110170A (en) * | 2021-04-14 | 2021-07-13 | 许昌市第二中学 | Multi-path voltage output type sensor control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203502135U (en) | Temperature monitor apparatus for high-voltage electric power equipment | |
| CN205030637U (en) | Intelligence umbrella based on APP | |
| CN204154335U (en) | A kind of silo humiture remote supervision system | |
| CN201732468U (en) | Portable wireless grain condition comprehensive detection system | |
| CN211234535U (en) | Temperature and humidity sensing device | |
| CN204924455U (en) | Photovoltaic power supply temperature transmitter based on WIA -PA communication | |
| CN206583478U (en) | A kind of wireless vibration and temperature complex sensor | |
| CN204007859U (en) | A kind of portable noise automatic monitoring system | |
| CN210534228U (en) | Portable voltage monitoring wireless log recording device | |
| CN211527471U (en) | Wisdom social control system control terminal | |
| CN109142885A (en) | It is a kind of not by the electromagnetic environment monitor device of meteorological effect | |
| CN206954771U (en) | A kind of intelligence envelope caddy and detecting system | |
| CN208506012U (en) | A kind of multifunctional room inner air and outer air monitoring device | |
| CN207649639U (en) | A kind of soil moisture content monitoring device with rain-proof and moisture proof function | |
| CN208537936U (en) | A kind of acquisition of Agriculture Image and transmission control system | |
| CN208477712U (en) | A kind of micro power consumption wireless temperature, pressure integrated transmitter based on LoRa communication | |
| CN204405110U (en) | A kind of environment detector | |
| CN205426224U (en) | Air quality monitoring equipment based on indoor environment | |
| CN210038113U (en) | Wireless data transmission device for measuring leakage current with ultra-low power consumption | |
| CN206057435U (en) | A kind of electric instrument for being capable of remote control | |
| CN108594709A (en) | A kind of sensor data acquisition Transmission system applied in electric power fire protection | |
| CN214154485U (en) | Pest control device | |
| CN214434179U (en) | Novel poultry animal doctor measures with body temperature device | |
| CN215136289U (en) | Intelligent Internet of things fire-fighting sandbox of gas station | |
| CN211698734U (en) | Charging and discharging temperature monitoring system and monitoring instrument for aviation storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |