阅读说明：本技术 一种基于以太网供电和数据传输的传感器系统 (Sensor system based on power over Ethernet and data transmission ) 是由 迟颂 张黎 陆华峰 顾崇云 邵琪 于 2020-12-02 设计创作，主要内容包括：一种基于以太网供电和数据传输的传感器系统,包括：传感器,所述传感器中设有振动检测模块、温度检测模块、声音检测模块中的一种或多种；所述传感器上连接有高防护等级的屏蔽电缆,并通过该屏蔽电缆连接至数据/电源转接器；所述数据/电源转接器上设有电缆插口；所述数据/电源转接器中还设有电源变换电路模块,所述电源变换电路模块的连接至电源端口和电缆插口；所述电源端口通过标准以太网电缆连接至上位机和PoE电源。本申请中,采用屏蔽电缆进行数据传输和供电,保证电力传输,因此可以支撑传感器进行高速和高频率的数据采集和传输,并且数据传输过程中的信号无损失,受外界影响小,保真度高,可以进行高性能的设备在线监测和故障诊断。(A power over ethernet and data transfer based sensor system comprising: the sensor is provided with one or more of a vibration detection module, a temperature detection module and a sound detection module; the sensor is connected with a shielding cable with high protection grade and is connected to the data/power adapter through the shielding cable; the data/power adapter is provided with a cable socket; the data/power adapter is also internally provided with a power conversion circuit module, and the power conversion circuit module is connected to a power port and a cable socket; the power supply port is connected to the upper computer and the PoE power supply through a standard Ethernet cable. In this application, adopt shielded cable to carry out data transmission and power supply, guarantee power transmission, consequently can support the sensor and carry out high-speed and high-frequency data acquisition and transmission to signal lossless in the data transmission process, it is little influenced by the external world, and the fidelity is high, can carry out equipment on-line monitoring and the fault diagnosis of high performance.)

1. A power over ethernet and data transfer based sensor system, comprising:

the sensor comprises a sensor (1), wherein one or more of a vibration detection module, a temperature detection module and a sound detection module are arranged in the sensor (1); the sensor (1) is connected with a shielded cable (7) and is connected to the data/power adapter (2) through the shielded cable (7); the shielded cable (7) adopts a twisted pair signal shielded cable with a shielding function or adopts a signal shielded cable with high waterproof and anti-corrosion grades; the sensor (1) and the data/power adapter (2) adopt an Ethernet protocol for data transmission; the sensor (1) and the data/power adapter (2) adopt an SPI protocol for data transmission;

a cable socket (22) is arranged on the data/power adapter (2); the cable socket (22) adopts a socket with a locking device with high waterproof and anti-corrosion grades; a power conversion circuit module (25) is arranged in the data/power adapter (2), and the power conversion circuit module (25) is connected to a power port (24) and a cable socket (22); the power supply port (24) is connected to the upper computer (3) and the power over Ethernet (PoE) power supply (4) through a standard Ethernet cable (77);

the sensor (1) and the shielding cable (7) thereon are of an integrated packaging structure; the length of the shielded cable (7) has a plurality of different length specifications.

2. A power over ethernet and data transmission based sensor system according to claim 1, wherein said data/power adapter (2) is further provided with a data interface (23), and said cable socket (22) and data interface (23) are connected through a signal conversion module (21).

3. An ethernet connection based sensor system according to claim 2, characterized in that the data interface (23) is connected to a router (8), the router (8) being connected to the upper computer (3).

4. A power over ethernet and data transmission sensor system according to claim 3, wherein the data transmission between the router (8) and the upper computer (3) is performed by wireless communication or wired communication.

5. A power over ethernet and data transmission based sensor system according to claim 3, wherein said data interface (23) is an RJ45 network interface.

6. A power over ethernet and data transmission based sensor system according to claim 1, wherein said sensor (1) is provided with an interface circuit (14) matching said shielded cable (7), said sensor (1) is provided with a vibration detection chip and/or a temperature detection chip, said vibration detection chip and/or temperature detection chip is connected to a conversion circuit (12), said conversion circuit (12) is connected to said interface circuit (14).

7. A power over Ethernet and data transmission based sensor system according to claim 6, characterized in that a power supply voltage regulator circuit module (13) is provided in the sensor (1), and the power supply voltage regulator circuit module (13) is connected to the interface circuit (14) and the vibration detection chip and/or the temperature detection chip, the conversion circuit (12).

8. An Ethernet connection based sensor system according to claim 7, characterised in that the sensor (1) is provided with an indicator light (15) for indicating the status of communication and power supply.

9. An Ethernet connection based sensor system according to claim 6, characterized in that the vibration detection chip (11) is a three-dimensional vibration MEMS chip or ADXL362/363 chip, and the conversion circuit (12) can be composed of one or more processor chips and a communication signal conversion chip.

Technical Field

The invention belongs to the field of sensor systems, and particularly relates to a sensor system based on power over Ethernet and data transmission.

Background

In the industrial field, in the operation process of the electromechanical device, the sensor is required to be used for collecting data such as vibration, temperature and sound of the electromechanical device, and the data is transmitted to the upper computer for analysis and monitoring, so that the functions of state detection, asset management, full life cycle maintenance and the like of the electromechanical device and a system are realized, for example: the sensor is applied to pump room unit equipment, can obtain data such as vibration, temperature in the pump body operation process, and the sensor can help the enterprise master equipment running state, avoid taking place the accident simultaneously, carries out on-line monitoring and fault diagnosis to the key unit in the production, has guaranteed the normal operating of equipment.

In the system disclosed at present, the sensor and the upper computer are communicated in a wireless mode basically, the sensor is generally an independent device and is fixed at a position to be detected, the sensor is powered by a built-in battery mostly, the service life is short, and the service life is generally within three years. Moreover, the frequency of data acquisition and transmission of such sensors is limited due to the constraint of battery power, and the transmission time interval is typically ten minutes to tens of minutes. In addition, the data transmission is performed in a wireless communication manner, and is very susceptible to interference in a strong noise industrial environment, so that the quality and efficiency of the transmitted data are reduced, and the application of most existing sensors is limited.

Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and the present invention has been made to study and improve sensors and applications thereof.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a sensor system based on Ethernet power supply and data transmission, which changes the connection mode of battery power supply and wireless communication in the prior art, adopts a shielding cable with high protection level to carry out high-speed data transmission and stable and reliable uninterrupted power supply, can realize high-speed and high-frequency data acquisition and transmission, provides technical support for a high-performance state detection algorithm, is connected with an upper computer or a cloud server through a standard Ethernet cable, and has the advantages of high universality, strong expandability, practicability and convenience.

In order to solve the above technical problems, the present invention is solved by the following technical solutions.

A power over ethernet and data transfer based sensor system comprising: the sensor is provided with one or more of a vibration detection module, a temperature detection module and a sound detection module; the sensor is connected with a shielded cable and is connected to the data/power adapter through the shielded cable; the data/power adapter is provided with a cable socket; the data/power adapter is also internally provided with a power conversion circuit module, and the power conversion circuit module is connected to a power port and a cable socket; the power supply port is connected to the upper computer and the PoE power supply through a shielding cable, and the length of the shielding cable has various different length specifications.

In this application, the sensor adopts shielded cable to carry out data transmission and mains operated, consequently can support the sensor and carry out high-speed and high-frequency data acquisition and transmission to signal loss among the data transmission process is not had, and it is little influenced by the external world, and the fidelity is high, can carry out accurate equipment on-line monitoring and fault diagnosis.

In a preferred embodiment, the data/power adapter is further provided with a data interface, and the cable socket and the data interface are connected through a signal conversion module.

In a preferred embodiment, the data interface is connected to a router, and the router can be connected to an upper computer or a cloud server in a wireless communication manner.

In a preferred embodiment, the data interface is connected to a PoE router, which may be connected to a PoE power source and a host computer or cloud server using standard ethernet cables.

In a preferred embodiment, the data interface is an RJ45 network interface, and a standard ethernet cable can be plugged in for data transmission, so that the expandability is high.

In a preferred embodiment, the sensor and the shielding cable thereon are of an integrated packaging structure, and the sensor has the advantages of good sealing performance, strong waterproof, dustproof and anticorrosion functions and high structural strength.

In a preferred embodiment, an interface circuit matched with the shielded cable is arranged on the sensor, a vibration detection chip and/or a temperature detection chip are arranged in the sensor, the vibration detection chip and/or the temperature detection chip are connected to a data conversion circuit, and the data conversion circuit is connected to the interface circuit. In the structure, the vibration detection chip is used for detecting the vibration state of the equipment, and the temperature detection chip is used for detecting the temperature state of the equipment.

In a preferred embodiment, a power supply voltage stabilizing circuit module is arranged in the sensor, and the power supply voltage stabilizing circuit module is connected to the shielded cable interface circuit and provides working power supply for the vibration detection chip and/or the temperature detection chip and the conversion chip; the operating supply voltage may be 5V/or 3.3V, or other customized voltage levels.

In a preferred embodiment, the sensor is provided with an indicator light for indicating the power supply and/or communication state.

In a preferred embodiment, the vibration detection chip is a three-dimensional vibration MEMS chip, and the model of the vibration detection chip can be selected from ADXL362/363 chips.

In a preferred embodiment, the conversion circuit converts between SPI or I2C and the ethernet communication protocol.

Compared with the prior art, the invention has the following beneficial effects: 1) in the application, a shielding cable with a high protection level is adopted for high-speed data transmission and stable and reliable uninterrupted power supply; 2) the standard internet power supply technology can be applied, a mature product power supply module is adopted to provide a working power supply, and the selection is flexible; 3) the high-speed and high-frequency data acquisition and transmission (such as 1k-10k Hz sampling frequency) can be realized, and technical support is provided for a high-performance state detection algorithm; 4) the data and power adapter is connected with the upper computer (such as a cloud/edge controller) through a standard Ethernet cable, so that the universal power adapter is high in universality, strong in expandability, practical and convenient.

Drawings

Fig. 1 is a schematic block diagram of a sensor system according to the present application.

Fig. 2 is a block diagram of a sensor according to an embodiment of the present disclosure.

Fig. 3 is an external view of a sensor according to an embodiment of the present application.

Fig. 4 is a block diagram of a data/power adapter according to an embodiment of the present application.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The embodiments described below by referring to the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout, are exemplary only for explaining the present invention, and are not construed as limiting the present invention.

The application relates to a sensor system based on power over ethernet and data transmission, including: the sensor comprises a sensor 1, wherein one or more of a vibration detection module, a temperature detection module and a sound detection module are arranged in the sensor 1 and can be respectively used for detecting data of vibration, temperature, noise and the like of equipment; the sensor 1 is connected with a shielded cable 7 and is connected to the data/power adapter 2 through the shielded cable 7; the data/power adapter 2 is provided with a cable socket 22; the data/power adapter 2 is further provided with a power conversion circuit module 25, and the power conversion circuit module 25 is connected to the power port 24 and the cable socket 22.

In the present application, the shielded cable 7 may be a twisted pair signal shielded cable with shielding function, or a signal shielded cable with high waterproof and anti-corrosion grades, and the length of the shielded cable 7 has a plurality of different length specifications; the sensor 1 and the data/power adapter 2 can adopt an Ethernet protocol for data transmission; the sensor 1 and the data/power adapter 2 can adopt SPI protocol for data transmission.

In this application, data transmission can be carried out between router 8 and host computer 3 to adopt wireless communication or wired communication mode, for example: and a WIFI wireless communication mode can be adopted between the router and the upper computer. The details are as follows.

In one embodiment of the present application, the power port 24 of the data/power adapter 2 is connected to the upper computer 3 and the PoE power source 4 via a standard ethernet cable 77 for data transmission and power supply.

In another embodiment of the application, the data/power adapter 2 is further provided with a data interface 23, the cable socket 22 and the data interface 23 are connected through a signal conversion module 21, the data interface 23 is connected to the router 8, and the router 8 is connected to an upper computer or a cloud server in a wireless communication manner to perform data transmission; or, the data interface 23 is an RJ45 network interface, the data interface is connected to a PoE router, the router may be connected to a PoE power supply and an upper computer or a cloud server through a standard ethernet cable, and a standard ethernet cable may be plugged for data transmission, so that the expandability is high.

In the application, the data collected by the sensor 1 is connected to the data/power adapter 2 through the shielded cable 7 by applying a standard high-speed serial communication protocol, and specifically, the data collected by the sensor 1 can be connected to the data/power adapter 2 by applying a standard/universal ethernet protocol; or to the data/power adapter 2 using standard/universal SPI/I2C protocols; or to the data/power adapter 2 using standard/universal MODBUS protocols.

In the present application, the data/power adapter 2 can be connected to one or more sensors, preferably 5 sensors, via a cable socket 22 (terminal or plug connector). The data of each sensor 1 can be connected with an upper computer or a router through an output RJ45 port 23 or 24 of a data/power adapter 2; or after data management by the microprocessor of the data/power adapter 2, the data/power adapter is connected with the upper computer through a unified RJ45 port 24. Further, the sensor may also be integrated with the data/power adapter 2 as a unitary structure.

In this application, be equipped with on the sensor 1 with shielded cable interface 14 that shielded cable 7 matches, be equipped with vibration detection chip and/or temperature detection chip in the sensor 1, this vibration detection chip and/or temperature detection chip are connected to conversion chip 12, conversion chip 12 is connected to shielded cable interface 14. In the structure, a vibration detection chip is used for detecting the vibration state of the equipment, a temperature detection chip is used for detecting the temperature state of the equipment, specifically, the vibration detection chip 11 is a three-dimensional vibration MEMS chip or an ADXL362/363 chip, and the conversion circuit 12 can be composed of one or more processor chips and a communication signal conversion chip. The sensor 1 is provided with a power supply voltage stabilizing circuit module 13, and the power supply voltage stabilizing circuit module 13 is connected to a shielded cable interface 14, a conversion circuit 12 and a vibration detection chip and/or a temperature detection chip. And an indicator light LED15 for indicating the power supply state and the communication connection state is arranged on the sensor 1.

In one embodiment of the present application, the sensor 1 and the shielding cable 7 thereon are an integrated package structure, as shown in fig. 3, which has good sealing performance, strong waterproof, dustproof, anti-corrosion, anti-electromagnetic interference functions, and high structural strength.

In this application, adopt shielded cable 7 to carry out data transmission and power supply, have following advantage: 1) in the application, a shielding cable with a high protection level is adopted for high-speed data transmission and stable and reliable uninterrupted power supply; 2) the standard Internet power supply technology can be applied, a standard Ethernet cable and a mature PoE power supply module are adopted to provide a working power supply for the sensor system, the selection is flexible, an alternating current power supply device and an industrial control low-voltage power supply module are prevented from being installed in an application field, and the trouble of finding a power supply socket in the application field is eliminated; 3) the high-speed and high-frequency data acquisition and transmission (such as 1k-10k Hz sampling frequency) can be realized, and technical support is provided for a high-performance state detection algorithm; 4) the data and power adapter is connected with the upper computer (such as a cloud/edge controller) through a standard Ethernet cable, so that the universal power adapter is high in universality, strong in expandability, practical and convenient.

The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that may occur to those skilled in the art are all within the scope of the present invention.