Wide voltage power supply outdoor temperature, humidity and air pressure sensor

Abstract

The utility model discloses a wide voltage power supply outdoor humiture baroceptor, which relates to the technical field of meteorological monitoring and comprises a circuit board, a power supply chip, a main control module, a humiture detection module and a barometric pressure detection module are integrated on the circuit board, the main control module is electrically connected with the power supply chip, and the humiture detection module is electrically connected with the barometric pressure detection module. The temperature and humidity detection module and the air pressure detection module are both electrically connected with the main control module, a hollow hole is formed in the middle of the upper surface of the circuit board, the temperature and humidity detection module and the air pressure detection module are located in the middle of the hollow hole, a patch sensing chip is utilized, multiple parameters are integrated, the integration degree is higher, the wide voltage power supply design is adopted, and the power supply efficiency is improved. The outdoor temperature, humidity and barometric sensor can adapt to direct-current power supply with wide voltage of 5-40V, wide-voltage power supply is achieved, the outdoor temperature, humidity and barometric sensor is convenient to use, meanwhile, the PCB is designed and arranged in a hollowed-out mode, air circulation is good, and monitoring accuracy is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to meteorological monitoring technical field, concretely is a kind of wide voltage power supply outdoor temperature and humidity barometric pressure sensor. BACKGROUND

[0002] With the development of science and technology, the monitoring technology of temperature and humidity barometric pressure is also progressing, the existing outdoor temperature and humidity is detected by PT100 temperature sensor (reaction not sensitive) or NTC temperature sensor (error is larger) generally, and the volume is large and is not conducive to production and installation, power supply is common 5V, 12V, 24V multiple power supply mode, not adapt to wide voltage power supply, and the existing is mostly single temperature, humidity sensor, single barometric pressure sensor single sensor, to measure multiple air parameters, need to use multiple sensor external connection.

[0003] Multiple sensors are dispersedly arranged with different power supply voltages, and then the convenience is poor, there are also integrated together, but the layout of sensitive components on circuit board is unreasonable, cannot form rapid air passage, can cause sensor reaction not rapid, and then affect the sensitivity of detection, for this purpose, we propose a kind of wide voltage power supply outdoor temperature and humidity barometric pressure sensor. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a kind of wide voltage power supply outdoor temperature and humidity barometric pressure sensor, utilize patch sensor chip, multiple parameters are integrated, and the integration level is higher, and wide voltage power supply design is adopted, can adapt to wide voltage 5-40V direct current power supply, wide voltage power supply, outdoor temperature and humidity barometric pressure sensor is convenient to use, while PCB is adopted hollow design layout, air flow is good, and monitoring accuracy is high, can effectively solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of wide voltage power supply outdoor temperature and humidity barometric pressure sensor, including circuit board, power supply chip, main control module, temperature and humidity detection module and barometric pressure detection module are integrated on the circuit board, the main control module is electrically connected with power supply chip, the temperature and humidity detection module and barometric pressure detection module are electrically connected with main control module, the middle part of the upper surface of the circuit board is provided with hollow hole, the temperature and humidity detection module and barometric pressure detection module are located in the middle part of hollow hole.

[0006] Further, it further includes communication module, and the communication module is electrically connected with main control module.

[0007] Further, the communication module is RS485 serial communication, and it uses GM3085E as serial communication chip.

[0008] Further, the main control module is main control chip, and it uses STC8G1K17.

[0009] Further, the temperature and humidity detection module adopts GXHT30C as a temperature and humidity collection sensor.

[0010] Further, the air pressure detection module is an air pressure chip, which adopts LQBP001MB.

[0011] Further, the external port is further included, and the pins of the power supply chip and the communication module are welded with the pins of the external port.

[0012] Compared with the prior art, the wide-voltage power supply outdoor temperature and humidity air pressure sensor has the following advantages:

[0013] 1. The patch sensing chip is used to realize the integration of air temperature, air humidity and atmospheric pressure, and the multiple parameters are integrated together, the integration degree is higher, and the wide-voltage power supply design is adopted, so that the wide-voltage power supply outdoor temperature and humidity air pressure sensor can be adapted to wide-voltage 5-40V direct current power supply, and the use convenience of the wide-voltage power supply outdoor temperature and humidity air pressure sensor is good.

[0014] 2. The PCB plate adopts a hollow design layout, optimizes the air inlet duct, and the rapid air circulation can make the sensor respond quickly, so that the wide-voltage power supply outdoor temperature and humidity air pressure sensor has good monitoring sensitivity and accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is an electrical connection principle diagram of the utility model;

[0017] Figure 3 It is an external port structural schematic view of the utility model;

[0018] Figure 4 It is a power supply chip peripheral circuit structural schematic view of the utility model;

[0019] Figure 5 It is a main control chip circuit structural schematic view of the main control module of the utility model;

[0020] Figure 6 It is a temperature and humidity detection module peripheral circuit structural schematic view of the utility model;

[0021] Figure 7 It is an air pressure detection module peripheral circuit structural schematic view of the utility model;

[0022] Figure 8 It is an RS485 communication circuit structural schematic view of the communication module of the utility model;

[0023] Figure 9The utility model discloses a main control chip's download port circuit structure schematic diagram.

[0024] In the drawing: 1 circuit board, 2 external port, 3 power supply chip, 4 main control module, 5 temperature and humidity detection module, 6 air pressure detection module, 7 communication module, 8 hollow hole. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-9 The embodiment provides a technical scheme:

[0027] Embodiment one:

[0028] A wide voltage power supply outdoor temperature and humidity air pressure sensor, including circuit board 1, the power supply chip 3, main control module 4, temperature and humidity detection module 5 and air pressure detection module 6 are integrated on circuit board 1, main control module 4 is electrically connected with power supply chip 3, temperature and humidity detection module 5 and air pressure detection module 6 all are electrically connected with main control module 4, the middle part of the upper surface of circuit board 1 is provided with hollow hole 8, and temperature and humidity detection module 5 and air pressure detection module 6 are located in the middle part of hollow hole 8.

[0029] Still include communication module 7, communication module 7 is electrically connected with main control module 4, and communication module 7 is RS485 serial communication, and it uses GM3085E as serial communication chip, and main control module 4 is main control chip, and it uses STC8G1K17, and temperature and humidity detection module 5 uses GXHT30C as the sensor of temperature and humidity acquisition, and air pressure detection module 6 is air pressure chip, and it uses LQBP001MB.

[0030] External air passes through hollow hole 8, and temperature and humidity detection module 5 and air pressure detection module 6 transmit the data detected to main control module 4, and main control module 4 exports monitoring structure through communication module 7 after information processing.

[0031] The external power supply is input into the system through D2 (diode anti-reverse connection), the power supply can accept 5-40V, the power supply is stably supplied to the power supply chip U1 through capacitors C1 and C2, is changed into 3.3V direct current power supply through the chip, is stably output to the whole system through inductor L1 and capacitor C4, and the 3.3V power supply is finally supplied to the domestic chip STC8G1K17 after being filtered and decoupled through capacitor C5. The chip serves as a device master control chip, R7 and LED1 are connected with the first pin of the multi-pin chip, serve as a state lamp indication, LED1 is located at the middle part of the circuit board 1, R8 and R9 are IIC circuit pull-up resistors, necessary current is provided, and the integrity of a signal is enhanced. The master control chip controls the RS485 chip GM3085E through P3.0 and P3.1 ports to realize data output to an external sensor, communicates with the outside to send state data of air temperature, humidity and air pressure, the master control chip collects the data of the temperature and humidity chip and the air pressure chip through P3.2 and P3.3 ports, utilizes an IIC interface, and collects the data of the two detection chips simultaneously through a parallel circuit. The second pin of the temperature and humidity chip GXHT30C is an address pin and is connected to the ground, the address is set as 0x44, is used for collecting a frame header required by a program, the fifth pin of the GXHT30C is a power supply pin, C6 is connected in parallel thereto, a stable power supply and decoupling effect are provided, the domestic chip LQBP001MB is an air pressure chip, the fifth pin thereof is an address pin and is connected to the ground, the address is set as 0x76, and is used for collecting a frame header required by a program, the eighth pin of the LQBP001MB is a power supply pin, C7 is connected in parallel thereto, a stable power supply and decoupling effect are provided, the middle part of the PCB layout is hollowed out, air can flow, air parameter changes can be captured in time, the accuracy of monitoring is improved, and the TTL port connected with the master control chip can be used for programming.

[0032] Embodiment two: the different technical points of the embodiment and embodiment one are as follows:

[0033] The pins of the power supply chip 3 and the communication module 7 are welded with the pins of the external port 2.

[0034] The first pin of the external port 2 CN1 is input, the power supply is input from the first pin of the CN1, the fourth pin is negative, the second and third pins of the external port 2 CN1 are welded with the output pins of the RS485 chip, and R3 is connected to the second and third pins of the CN1.

[0035] The working principle of the wide-voltage power supply outdoor temperature and humidity air pressure sensor is as follows: the circuit board 1 is installed into the ventilated shell, the power supply and the communication cable are plugged with the external port 2, air in the environment passes through the shell and then enters the inside, meanwhile, the hollow hole 8 facilitates the flow of the internal air, and the detected data is output through the communication cable.

[0036] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A wide voltage powered outdoor temperature and humidity barometric pressure sensor, characterized by: Including circuit board (1), integrated with power supply chip (3), main control module (4), temperature and humidity detection module (5) and air pressure detection module (6) on the circuit board (1), the main control module (4) is electrically connected with power supply chip (3), temperature and humidity detection module (5) and air pressure detection module (6) are electrically connected with main control module (4), the middle part of the upper surface of the circuit board (1) is provided with a hollow hole (8), temperature and humidity detection module (5) and air pressure detection module (6) are located in the middle part of the hollow hole (8).

2. The wide voltage powered outdoor temperature and humidity barometric pressure sensor according to claim 1, wherein: It also includes communication module (7), the communication module (7) is electrically connected with main control module (4).

3. The wide voltage powered outdoor temperature and humidity barometric pressure sensor according to claim 2, wherein: The communication module (7) is RS485 serial communication, which uses GM3085E as serial communication chip.

4. The wide voltage powered outdoor temperature and humidity barometric pressure sensor according to claim 1, wherein: The main control module (4) is a main control chip, which uses STC8G1K17.

5. The wide voltage powered outdoor temperature and humidity barometric pressure sensor according to claim 1, wherein: The temperature and humidity detection module (5) uses GXHT30C as temperature and humidity acquisition sensor.

6. The wide voltage powered outdoor temperature and humidity barometric pressure sensor according to claim 1, wherein: The air pressure detection module (6) is an air pressure chip, which uses LQBP001MB.

7. The wide voltage powered outdoor temperature and humidity barometric pressure sensor according to claim 2, wherein: It also includes external port (2), the pins of power supply chip (3) and communication module (7) are welded with the pins of external port (2).

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