CN210579252U

CN210579252U - Multifunctional signal collector based on NB-IOT technology

Info

Publication number: CN210579252U
Application number: CN201922238079.2U
Authority: CN
Inventors: 薛明刚
Original assignee: Suzhou Mangchong Wulian Technology Co Ltd
Current assignee: Suzhou Mangchong Wulian Technology Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-05-19
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses a multi-functional signal collection station based on NB-IOT technique, including multi-functional signal collection station, multi-functional signal collection station includes power module, data acquisition module, NB-IOT wireless communication module and MCU treater, the MCU treater is connected with NB-IOT wireless communication module, power module and data acquisition module, data acquisition module and 4-20mA collection module, 0-10V collection module and IO signal acquisition module are connected. The utility model discloses a newest NB-IoT technique compares in traditional signal collector, has great promotion in cost, use are convenient.

Description

Multifunctional signal collector based on NB-IOT technology

Technical Field

The utility model relates to an acquisition of analog quantity, digital quantity signal especially relates to a multi-functional signal collection ware based on NB-IOT technique.

Background

With the development of the technology of the internet of things, the internet of things is applied to various products more and more. In the field of industrial fields, the internet of things technology is applied to realize low-cost remote data acquisition, monitoring and transmission, and the monitoring and transmission become one of the problems of common attention.

NB-IoT is an emerging technology in the IoT realm that supports cellular data connectivity for devices over wide area networks. Only occupies about 180KHz bandwidth, repeated transmission, simplified network protocol and the like. Compared with other narrowband internet of things technologies, the NB-IoT has significant advantages in coverage, power consumption, cost, connection number and the like.

In the domestic market, the signal collector mostly adopts traditional communication modes such as RS485/RS232, and the data of gathering can only be realized if need transmit to the server and need pass through loaded down with trivial details agreement butt joint.

The existing signal collector generally has a single function, such as only 4-20mA or 0-10V, IO control, and the expansibility is poor. In the aspect of data transmission, serial port data transmission is adopted, and remote data docking can be realized only by wiring and adding equipment on an application field. The installation and debugging are complex, and the use cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the above problem that prior art exists, provide one set of low cost, high reliable, extensible thing networking signal detection solution, can realize the direct teletransmission of monitoring data, the utility model discloses a newest NB-IoT technique compares in traditional signal collection station, has great promotion in cost, use are convenient.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

the multifunctional signal collector comprises a power module, a data acquisition module, an NB-IOT wireless communication module and an MCU processor, wherein the MCU processor is connected with the NB-IOT wireless communication module, the power module and the data acquisition module, and the data acquisition module is connected with a 4-20mA acquisition module, a 0-10V acquisition module and an IO signal acquisition module.

Preferably, the power supply module comprises a TPS5430 and AMS1117-3.3V power management chip.

Preferably, the NB-IOT wireless communication module is configured as a BC35G module manufactured by a remote company. By adopting the technical scheme, the method has the advantages of low power consumption and high stability, and can be compatible with three operator networks of mobile, Unicom and telecom. The NB-IoT can directly adopt an LTE network, and by utilizing the prior art and a base station, the network deployment cost is low, and the equipment cost is low.

Preferably, the MCU processor adopts an STM32F103RCT6 32-bit singlechip manufactured by Italian semiconductor corporation. By adopting the technical scheme, the running speed is 72MHz, the FLASH program memory space is 256KB, and the RAM capacity is 48K.

Wherein: hardware characteristics of STM32F103RCT 6:

(1) supply voltage: 2V-3.6V;

(2) peripheral interface: CAN, I2C, IrDA, LIN, SPI, UART/USART, USB;

(3) peripheral equipment: DMA, motor control PWM, PDR, POR, PVD, PWM;

(4) input/output (I/O): 51;

(5) working temperature: -40 ℃ to 85 ℃;

(6) packaging/housing: 64-LQFP.

Preferably, the data acquisition module adopts an LM358 integrated operational amplifier to support voltage, current and IO signal acquisition.

Preferably, the multifunctional signal collector based on the NB-IoT technology has the technical characteristics of low cost, low power consumption, easy use and the like, and data collected by the collector can be directly transmitted to the background server.

The utility model discloses multi-functional signal collector of thing networking based on NB-IoT technique adopts NB-IoT technique, has technical characterstic such as low cost, low-power consumption, strong link, high cover. NB-IoT has great advantages in small data volume, low rate scenarios. NB-IoT requires no re-networking and both radio frequency and antenna are essentially multiplexed. The NB-IoT indoor coverage capability is strong, can be applied to most industrial fields, and improves the gain by 20dB compared with the LTE, namely improves the coverage area capability by 100 times. With the same base station, NB-IoT can provide 50-100 times more access than existing wireless technologies. The equipment can simultaneously support 4-20mA/0-10V/IO port signal acquisition, and simultaneously can expand equipment protocol butt joint to really realize multifunctional acquisition.

The utility model discloses a NB-IoT (Narrow Band Internet of Things, NB-IoT) technique, NB-IoT are based on operator's network, can directly deploy in GSM network, UMTS network or LTE network to reduce the deployment cost. Data collected by the temperature and humidity sensor can be directly transmitted to the cloud server through an NB-IOT technology. The multifunctional signal collector is designed based on an STM8 processor, has 12-bit AD quantization capacity and realizes digital quantization of analog quantity. The utility model discloses mainly include 8 passageway 4-20mA acquisition units, 8 passageway 0-10V acquisition units, 8 passageway 24V signal acquisition units, NB-IOT wireless communication unit. The utility model discloses mainly used has the occasion of higher requirement to cost, installation application, for example industrial application scene, automation equipment etc.. And wirelessly transmitting the data acquired by the acquisition unit to the platform through the NB-IoT network, so as to realize centralized management of the acquired equipment. Therefore, remote data monitoring is realized, problems can be found conveniently and timely, and the timeliness of solving the problems is improved.

The utility model has the advantages that:

1. the utility model adopts the latest NB-IoT technology, and has the advantages of low power consumption, low cost, strong link, high coverage and the like;

2. the utility model discloses a modular design, scalability can satisfy voltage, electric current, IO signal and equipment agreement butt joint by force.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented according to the content of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a block diagram of a system according to the present invention;

fig. 2 is a schematic circuit diagram of a power module according to the present invention;

fig. 3 is a schematic circuit diagram of an NB-IOT wireless communication module according to the present invention;

FIG. 4 is a schematic circuit diagram of an MCU processor according to the present invention;

fig. 5 is a schematic diagram of an 8-way voltage acquisition circuit according to the present invention;

fig. 6 is a schematic diagram of an 8-way current collecting circuit according to the present invention.

Detailed Description

The invention is further described with reference to the accompanying drawings:

referring to fig. 1 to 6, a multifunctional signal collector based on NB-IOT technology includes a multifunctional signal collector, which includes a power module, a data acquisition module, an NB-IOT wireless communication module, and an MCU processor, where the MCU processor is connected to the NB-IOT wireless communication module, the power module, and the data acquisition module is connected to the 4-20mA acquisition module, the 0-10V acquisition module, and the IO signal acquisition module.

Wherein: hardware characteristics of STM32F103RCT 6:

(1) supply voltage: 2V-3.6V;

(2) peripheral interface: CAN, I2C, IrDA, LIN, SPI, UART/USART, USB;

(3) peripheral equipment: DMA, motor control PWM, PDR, POR, PVD, PWM;

(4) input/output (I/O): 51;

(5) working temperature: -40 ℃ to 85 ℃;

(6) packaging/housing: 64-LQFP.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a multi-functional signal collector based on NB-IOT technique, includes multi-functional signal collector, its characterized in that: the multifunctional signal collector comprises a power supply module, a data acquisition module, an NB-IOT wireless communication module and an MCU processor, wherein the MCU processor is connected with the NB-IOT wireless communication module, the power supply module and the data acquisition module, and the data acquisition module is connected with a 4-20mA acquisition module, a 0-10V acquisition module and an IO signal acquisition module.

2. The multifunctional signal collector based on the NB-IOT technology of claim 1, wherein: the power supply module comprises a TPS5430 and AMS1117-3.3V power supply management chip.

3. The multifunctional signal collector based on the NB-IOT technology of claim 1, wherein: the NB-IOT wireless communication module is set as a BC35G module produced by a remote company.

4. The multifunctional signal collector based on the NB-IOT technology of claim 1, wherein: the MCU processor adopts STM32F103RCT6 as a 32-bit singlechip manufactured by Italian semiconductor corporation.

5. The multifunctional signal collector based on the NB-IOT technology of claim 1, wherein: the data acquisition module adopts LM358 integrated operational amplifier to support voltage, current and IO signal acquisition.