CN215264454U

CN215264454U - Data acquisition device

Info

Publication number: CN215264454U
Application number: CN202121728454.2U
Authority: CN
Inventors: 童玲; 何涵; 陈欢; 沈通桥
Original assignee: Shenzhen Digital Power Grid Research Institute of China Southern Power Grid Co Ltd
Current assignee: China Southern Power Grid Digital Platform Technology Guangdong Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-12-21
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a data acquisition device, which comprises a main controller; the wireless communication module is connected to the main controller and used for establishing wireless communication between the main controller and the intelligent gateway; the temperature and humidity sensor is connected to the main controller and used for collecting temperature and humidity data; and the vibration sensor is connected to the main controller and used for collecting vibration data. Compared with the prior art, the data acquisition device can improve the stability of sensor data acquisition and the network interaction capacity of data, and further realize the convenient and large-scale deployment of the data acquisition device.

Description

Data acquisition device

Technical Field

The utility model relates to a thing networking communication technology field especially relates to a data acquisition device.

Background

Present sensor acquisition device is mostly the disconnect-type, and collection module and sensor pass through the cable connection, and it is extremely inconvenient to deploy, and the data acquisition stability of sensor is relatively poor, and the collection device who uses commonly does not have the network access ability, and sensor data gathers the unable scale that forms, the interaction of the sensor data acquisition information of being not convenient for. Therefore, it is very important to provide a data acquisition device to improve the stability of sensor data acquisition and the network interaction capability of data, and further to implement the convenient and large-scale deployment of the data acquisition device.

Disclosure of Invention

An object of the utility model is to the above-mentioned problem, provide a data acquisition device to improve sensor data acquisition's stability and the network interaction ability of data, and then realize data acquisition device's portable and scale deployment.

In order to solve the technical problem, the utility model discloses implement based on following technical scheme:

a data acquisition device comprising: a main controller; the wireless communication module is connected to the main controller and used for establishing wireless communication between the main controller and the intelligent gateway; the temperature and humidity sensor is connected to the main controller and used for collecting temperature and humidity data; a vibration sensor connected to the master controller for collecting vibration data.

Further, the main controller comprises a microprocessor, a key unit connected to the microprocessor, and a power supply.

Further, the apparatus further comprises: the UART-to-RS 232 conversion circuit is used for establishing communication between the microprocessor and the PC end; one end of the UART-to-RS 232 conversion circuit is connected to the microprocessor, and the other end of the UART-to-RS 232 conversion circuit is connected to the PC end.

Further, the apparatus further comprises: and the input end of the sensing signal circuit is connected to the output end of the vibration sensor, and the output end of the sensing signal circuit is connected to the microprocessor.

Further, the sensing signal circuit includes: the input end of the UART-to-RS 485 conversion circuit is connected to the output end of the vibration sensor; the RS 485-UART conversion circuit comprises an RS 485-UART conversion circuit, wherein the input end of the RS 485-UART conversion circuit is connected to the output end of the UART-RS 485-UART conversion circuit, and the output end of the RS 485-UART conversion circuit is connected to the microprocessor.

Further, the apparatus further comprises: an I/O interface for establishing communication between the microprocessor and an external sensor; the I/O interface includes a high speed CMOS chip connected to the microprocessor and an optocoupler connected to the high speed CMOS chip.

Furthermore, the number of input interfaces connected with the optical coupler in the high-speed CMOS chip is equal to the number of output interfaces connected with the microprocessor in the high-speed CMOS chip.

Further, each of the photo-couplers is connected in one-to-one correspondence with each of the data input circuits connected to the external sensor.

Further, the wireless communication module includes a Zigbee wireless module with a model xbe 3.

Further, the vibration sensor is a nine-axis sensor.

Compared with the prior art, the beneficial effects of the utility model are that:

It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (e.g. in the examples) can be combined with each other to constitute new or preferred technical solutions. Not to be reiterated herein, but to the extent of space.

Drawings

Fig. 1 is a schematic diagram of functional modules of a data acquisition device according to an embodiment of the present invention.

Fig. 2 is a schematic circuit diagram of a data acquisition device according to an embodiment of the present invention.

Fig. 3 is another specific circuit diagram of the data acquisition device in the embodiment of the present invention.

Fig. 4 is a schematic circuit diagram of another specific circuit of the data acquisition device in the embodiment of the present invention.

Fig. 5 is a schematic circuit diagram of another specific circuit of the data acquisition device in the embodiment of the present invention.

Fig. 6 is a schematic circuit diagram of another specific circuit of the data acquisition device in the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to explain the technical scheme in the application more clearly, a data acquisition device of the machine internet of things is simply introduced: the data acquisition device of the machine Internet of things integrates a sensor technology, a microcomputer technology, a computer technology, a communication technology and an Internet technology, a sensor data acquisition network is constructed by taking a 2.4GHz wireless communication technology of an IEEE 802.15.4 standard as a core, and flexible expansion and deployment of the acquisition device terminal are realized. The 2.4GHz wireless communication technology, namely the Zigbee communication technology, developed by taking IEEE 802.15.4 as a standard has mature application in the fields of sensor networks, Internet of things and the like, such as smart homes, smart kitchens, smart buildings and the like.

As shown in fig. 1, the present embodiment discloses a data acquisition apparatus, which includes a main controller; the wireless communication module is connected to the main controller and used for establishing wireless communication between the main controller and the intelligent gateway; the temperature and humidity sensor is connected to the main controller and used for collecting temperature and humidity data; and the vibration sensor is connected to the main controller and used for collecting vibration data.

It is thus clear that, implement the embodiment of the utility model provides a described data acquisition device can improve sensor data acquisition's stability and the network interaction ability of data, and then realizes data acquisition device's portable and scale deployment.

As shown in fig. 2, in the present embodiment, the main controller includes a microprocessor, a key unit connected to the microprocessor, and a power supply. The main controller is used for realizing the control of the wireless communication module and the Ethernet interface, mounting a temperature and humidity sensor, a vibration sensor and the like and providing a reserved bus interface. The microprocessor is of the model STM32F405RGT6 and is used for processing sensor data and transmitting and receiving data of the wireless communication module. The key unit comprises an SW1 key and an SW2 key, one end of the key unit is connected to the microprocessor, and the other end of the key unit is connected to the MCU system and used for waking up or resetting the MCU system. The power supply comprises a filter circuit, and can convert external input voltage into 3.3V voltage so as to ensure the reliable work of the main controller. The filter circuit comprises a plurality of resistors with the capacitance of 1K @100MHz and a plurality of capacitors with the capacitance of 0.1 uF.

As shown in fig. 3 and fig. 4, in this embodiment, the data acquisition device further includes an interface module, where the interface module includes a UART-to-RS 232 conversion circuit, a sensing signal circuit, and an I/O interface, and is used to configure the communication module and obtain the multiple status data acquired by the monitored device.

The UART-to-RS 232 conversion circuit is used for establishing communication between the microprocessor and the PC end; one end of the UART-to-RS 232 conversion circuit is connected to the microprocessor, and the other end of the UART-to-RS 232 conversion circuit is connected to the PC end. The chip type of the UART-to-RS 232 conversion circuit is SIT3232E, and the UART-to-RS 232 conversion circuit is used for connecting a PC end to acquire state data. The external input voltage of the UART-to-RS 232 conversion circuit is 3.3V, and the external input voltage of 3.3V obtains the VDD-232 internal voltage through a resistor.

Specifically, in the present embodiment, an input terminal of the sensing signal circuit is connected to an output terminal of the vibration sensor, and an output terminal of the sensing signal circuit is connected to the microprocessor.

Specifically, in the embodiment, the input end of the UART-to-RS 485 conversion circuit is connected to the output end of the vibration sensor, the UART-to-RS 485 conversion circuit is used for connecting the vibration sensor and reserving an external RS485 interface, and comprises chips with models of MAX3485 and U-SOT235-SN74LVC1G14 DBVR; the circuit comprises an RS 485-to-UART conversion circuit, wherein the input end of the RS 485-to-UART conversion circuit is connected to the output end of the UART-to-RS 485 conversion circuit, the output end of the RS 485-to-UART conversion circuit is connected to a microprocessor, and the UART-to-RS 485 conversion circuit is used for being externally connected with a sensor to collect data and comprises a chip with the model of MAX 3485.

Specifically, in this embodiment, the I/O interface is used to establish communication between the microprocessor and the external sensor; the I/O interface includes a high speed CMOS chip connected to the microprocessor and an optocoupler connected to the high speed CMOS chip. The I/O interface collects data of an external sensor and transmits the data to the microprocessor. The optical coupler is of the type LTV356T and is used for increasing the anti-interference capability. The model of the high-speed CMOS chip is SN74HC 14. The I/O interface can convert the external input voltage into 3.3V voltage through a resistor of 100R/2A. The external sensor is an external sensor for sensing the performance of the application scene.

Specifically, in this embodiment, the number of input interfaces connected to the optical coupler in the high-speed CMOS chip is equal to the number of output interfaces connected to the microprocessor in the high-speed CMOS chip. Each optical coupler is connected to an input interface of one high-speed CMOS chip, and the input interface of each high-speed CMOS chip corresponds to an output interface of one high-speed CMOS chip.

Specifically, in the present embodiment, each of the photo-couplers is connected in one-to-one correspondence with each of the data input circuits connected to the external sensor. Each optical coupler is connected with the external sensor through a data input circuit and is used for receiving data collected by the external sensor.

Specifically, in the present embodiment, the vibration sensor is a nine-axis sensor and is integrated in the data acquisition device. The model number of the chip of the nine-axis sensor is U-LCC12-JY 901.

As shown in fig. 5, in this embodiment, specifically, the wireless communication module includes a Zigbee wireless module with a model of XBee3, and is configured to send all sensor data collected by the collection device to the intelligent gateway.

As shown in fig. 6, in this embodiment, the temperature and humidity sensor is integrated in the data acquisition device, and senses temperature and humidity data through the air hole. The external input voltage of the temperature and humidity sensor is 3.3V. The temperature and humidity sensor is internally provided with a chip with the model number of U-SHT3X-SHT 31-DIS-B2.5KS. Specific circuit diagrams of the above circuit of the present embodiment can refer to fig. 2 to 6.

While the preferred embodiments of the present invention have been described in detail, it should be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and in light of the above teachings. Therefore, the technical solutions according to the present invention, which can be obtained by logical analysis, reasoning or limited experiments based on the prior art, should be within the scope of protection defined by the claims.

Claims

1. A data acquisition device, comprising:

a main controller;

the wireless communication module is connected to the main controller and used for establishing wireless communication between the main controller and the intelligent gateway;

the temperature and humidity sensor is connected to the main controller and used for collecting temperature and humidity data;

a vibration sensor connected to the master controller for collecting vibration data.

2. The data acquisition device of claim 1, wherein the master controller comprises a microprocessor, a key unit connected to the microprocessor, and a power source.

3. The data acquisition device of claim 2, further comprising:

the UART-to-RS 232 conversion circuit is used for establishing communication between the microprocessor and the PC end; one end of the UART-to-RS 232 conversion circuit is connected to the microprocessor, and the other end of the UART-to-RS 232 conversion circuit is connected to the PC end.

4. The data acquisition device of claim 2, further comprising:

and the input end of the sensing signal circuit is connected to the output end of the vibration sensor, and the output end of the sensing signal circuit is connected to the microprocessor.

5. The data acquisition device of claim 4, wherein the sensing signal circuit comprises:

the input end of the UART-to-RS 485 conversion circuit is connected to the output end of the vibration sensor;

the RS 485-UART conversion circuit comprises an RS 485-UART conversion circuit, wherein the input end of the RS 485-UART conversion circuit is connected to the output end of the UART-RS 485-UART conversion circuit, and the output end of the RS 485-UART conversion circuit is connected to the microprocessor.

6. The data acquisition device of claim 2, further comprising:

an I/O interface for establishing communication between the microprocessor and an external sensor; the I/O interface includes a high speed CMOS chip connected to the microprocessor and an optocoupler connected to the high speed CMOS chip.

7. The data acquisition device according to claim 6, wherein the number of input interfaces connected to the optical coupler in the high-speed CMOS chip is equal to the number of output interfaces connected to the microprocessor in the high-speed CMOS chip.

8. The data acquisition device of claim 6, wherein each of the optical couplers is connected in a one-to-one correspondence with each of the data input circuits connected to the external sensor.

9. The data acquisition device of claim 1, wherein the wireless communication module comprises a Zigbee wireless module of model XBee 3.

10. The data acquisition device of any one of claims 1-9, wherein the vibration sensor is a nine-axis sensor.