KR20100070567A - System and method for high speed real time sensor monitoring based on ethernet network using spi - Google Patents

Abstract

PURPOSE: A network-based high speed sensor monitoring system using an SPI(Serial Peripheral Interface) communication and a method thereof are provided to perform real time correction and service application about a sensor node. CONSTITUTION: A plurality of network interworking sensor nodes(20) includes a network interworking processor and a sensor node. A plurality of network interworking sensor nodes acquires and transmits sensing information sensed from a sensor through an SPI communication at high speed. A management server(10) keeps and manages a plurality of network interworking sensor nodes by using the sensing information transmitted from a plurality of network interworking sensor nodes.

Description

Network-based high speed sensor monitoring system and method using SPI communication {System and method for High speed Real time Sensor Monitoring based on Ethernet Network using SPI}

The present invention provides a network-based high-speed sensor monitoring system using SPI (Serial Peripheral Interface) communication to enable the acquisition of high-speed sensing data through the network in the wired and wireless sensor network, thereby enabling the correction of the sensor node or real-time service application; It is about a method.

The sensor network is a technology that provides users with various services such as remote meter reading, surveillance and reconnaissance, intelligent transport system (ITS), telematics, and ecosystem monitoring through a plurality of sensor nodes connected by wired or wireless.

In the sensor network system, in order to provide various services, various types of sensor modules are used in combination with sensor nodes. With recent advances in technology, high-speed sampling, such as acoustic sensors, acceleration sensors, magnetic sensors, and image sensors, There is an increasing number of services that use sensor modules that require large amounts of data.

In addition, in the wireless sensor network test bed, which is mainly used for the purpose of verifying the performance of sensor networking, in accordance with the growth and demand of services requiring high-speed sampling and large data, high-speed sensors for algorithm development support and sensor calibration Monitoring technology is required.

In order to develop and maintain a service requiring high-speed sampling and large data and to monitor high-speed sensors, a technology for transmitting sensing information at high speed through a network is required.

However, in the current sensor network system, not only high-speed data transmission of sensing information is difficult, and most test beds do not support high-speed sensing information transmission.

In addition, wired sensor networks that are connected via Ethernet over a wide area need verification of sensor failures at remote locations and periodic sensor calibration.

The present invention has been proposed to enable high-speed sensor monitoring of wired / wireless sensor networks and high-speed sensing data acquisition in a test bed of a wireless sensor network, and obtains sensing information at high speed using SPI communication to manage a remote server. It is to provide a network-based high-speed sensor monitoring method and system using SPI communication that can be transmitted in real time, thereby real-time correction and service application to the sensor node.

As a means for solving the above problems, the present invention, a plurality of network interlocking sensor nodes for obtaining and transmitting the sensing information sensed through the sensor at high speed through Serial Peripheral Interface (SPI) communication; And a management server for maintaining the plurality of network interworking sensor nodes by using the sensing information transmitted from the plurality of network interworking sensor nodes.

The plurality of network interworking sensor nodes may include a network interworking processor configured to communicate with the management server through a network to receive a command from the management server or to transmit sensing information to the management server; And a sensor node which operates according to a command received through the network interworking processor, detects information set through the sensor, and transmits the sensed sensing information to the network interworking processor through SPI communication at high speed.

The sensor node comprises a sensor module for sensing the set information; And a main module for high-speed transmission of sensing information sensed by the sensor module to the network interworking processor through SPI communication.

The sensor module and the main module may be connected to at least one interface among an SPI, an analog-digital converter (ADC), an inter-integrated circuit protocol (I2C), and a general purpose input output (GPIO).

In addition, the present invention as another means for solving the above problems, the network interworking processor receives a sensing start command from the management server, and transmitting the received sensing start command to the sensor node through the SPI communication; Interpreting, by the sensor node, the received command and performing sensing according to the interpreted command to collect sensing information; Transmitting the collected sensing information to a network interworking processor using SPI communication; And a network-based high speed sensor monitoring method using SPI communication, wherein the network interworking processor transmits the sensing information to the management server in real time.

The present invention obtains the sensing information collected by the sensor module at high speed through the SPI communication, and transmits the sensing information in real time to the management server through the network, and at the same time it is possible to obtain the high-speed sensing data from a remote location, by using the obtained data Fault monitoring and regular correction of sensor modules are possible, and service upgrade and development are possible through the high speed sensing data acquisition.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

In addition, throughout the specification, when a part is 'connected' to another part, it is not only 'directly connected' but also 'indirectly connected' with another element in between. Include. In addition, the term 'comprising' a certain component means that the component may be further included, without excluding the other component unless specifically stated otherwise.

In addition, the term 'module' refers to a unit for processing a specific function or operation, which may be implemented in hardware or software or a combination of hardware and software.

1 is an overall configuration diagram showing a network-based high speed sensor monitoring system using SPI communication according to an embodiment of the present invention. The high speed sensor monitoring system can be applied to wired and wireless sensor networks including test beds for wired sensor networks and wireless sensor networks installed over a wide area.

Referring to FIG. 1, the high speed sensor monitoring system according to the present invention includes a management server 10 and a plurality of network interworking sensor nodes 20.

The management server 10 receives real-time high-speed sensing information from a plurality of network interworking sensor nodes 20 through wired / wireless networks such as TCP / IP, UDP, and performs one or more of service management, upgrade, sensor management, and correction. do. For example, in the case of a service management server, service management and upgrade may be performed, and in the case of a sensor management server, sensor management and correction may be performed.

The network interworking sensor node 20 senses the information set through the sensor, obtains the sensing information at high speed through SPI (Serial Peripheral Interface) communication, and transmits the sensing information to the management server 10 in real time. Receives and executes the command from (10). The command transmitted from the management server 10 is a command to be performed by the sensor node 20, such as a sensing start and end command, a sensor correction command, and an upgrade command of the other sensor node 20, and the sensor node 20. Anything that can be handled by the service provider and required for service and sensor monitoring is possible.

2 is a block diagram illustrating a detailed configuration of the network interworking sensor node 20. Referring to this, the network interworking sensor node 20 is connected to the management server 10 through a wired / wireless network and is connected to TCP / IP. And a network interworking processor 21 which communicates with the management server 10 via UDP, and the like, and senses the information set through the sensor, and transmits the sensing information to the network interworking processor 21 through SPI communication. It consists of a sensor node 22.

In the above, SPI is a full-duplex synchronous serial interface that connects to peripheral devices using four wires, and includes two data lines and two control lines, and includes a master output slave device (MOSI) and a master device input. It is used for communication between master / slave devices such as Master In Slave Out (MISO).

The present invention connects the sensor node 22 and the network interworking processor 21 to the SPI, and transmits the sensing information collected by the sensor node 22 to the network interworking processor 21 at high speed.

In addition, in the present invention, the sensor node 22 and the network interworking processor 21 has a separate structure for operation only in the wireless sensor network. In this case, the sensor node 22 may use an existing sensor node as it is.

The internal configuration of the sensor node 22 includes a sensor module 222 capable of acquiring various sensing information required and a main module 221 for processing the acquired sensing information, similar to the configuration of a general sensor node. . The sensor module 222 may be, for example, an acoustic, vibration, or acceleration sensor requiring high speed sampling. The sensor module 222 and the main module 221 may be connected to various interfaces such as SPI, ADC, I2C, GPIO, etc. The main module 221 is an SPI for high-speed data communication according to the present invention. It is desirable to support communication.

In addition, the main module 221 is connected to the network interworking processor 21 by SPI, and performs high speed data transmission.

3 is a flowchart illustrating a network-based high speed sensor monitoring method using SPI communication according to the present invention.

Referring to FIG. 3, the network-based high speed sensor monitoring process implemented through the system according to the present invention will be described.

First, the remote management server 10 transmits a sensing start command to the network interworking processor 21 of each network interworking sensor node 20 through a wired or wireless network. The network interworking processor 21 transmits the received sensing start command to the corresponding sensor node 22 through SPI communication (S10).

After receiving the sensing start command, the main module 221 of the sensor node 22 analyzes the transmitted command and controls the sensor module 222 to start sensing according to the interpreted command (S20).

As described above, the sensor module 222 starts operation to collect sensing information, and the collected sensing information is quickly transmitted by the main module 221 to the network interworking processor 21 through the SPI. Subsequently, the network interworking processor 21 transmits the sensing information received from the main module 221 to the management server 10 in real time through a wired or wireless network (S30).

Therefore, the management server 10 receives the sensing information transmitted at high speed from the network interworking processor 21 in real time after transmitting the sensing start command (S40), or applies the sensing information received in real time to a service. , Analyzes and applies to the monitoring operation (S50).

According to the above, in the high speed sensor monitoring method according to the present invention, the management server 10 can obtain the sensing information collected from the plurality of sensor nodes 22 at high speed, and thus, real-time monitoring in the management server 10 And service application can be enabled.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art.

The present invention is to support high-speed communication between a plurality of sensor nodes and a management server in real time in accordance with the trend of increasing the demand for services using a sensor that requires high-speed sampling, to support algorithm development, sensor calibration, etc. using the same. Applicable to high speed sensor monitoring technology.

In addition, the present invention can be utilized for the development of a service using a sensor signal transmitted in real time and real-time correction of the sensor in a wired sensor network that is widely connected to Ethernet over a wide area.

1 is a view showing the overall configuration of a network-based high-speed sensor monitoring system using SPI communication according to the present invention.

2 is a block diagram showing a detailed configuration of a network-based sensor node in the network-based high speed sensor monitoring system according to the present invention.

3 is a flowchart illustrating a network-based high speed sensor monitoring method according to an embodiment of the present invention.

Claims (5)

A plurality of network-linked sensor nodes that acquire and transmit sensing information sensed through the sensor at high speed through SPI (Serial Peripheral Interface) communication; And Network-based high-speed sensor monitoring system using the SPI communication, characterized in that it comprises a management server for maintaining the plurality of network connection sensor nodes by using the sensing information transmitted from the plurality of network connection sensor nodes. The method of claim 1, wherein the plurality of network-linked sensor nodes, A network interworking processor communicating with the management server through a network to receive a command from the management server or to transmit sensing information to the management server; And And a sensor node which operates according to a command received through the network interworking processor, detects information set through a sensor, and transmits the sensed sensing information to the network interworking processor at high speed through SPI communication. Network-based high speed sensor monitoring device using communication. The method of claim 2, wherein the sensor node is A sensor module for sensing set information; And Network-based high-speed sensor monitoring device using the SPI communication, characterized in that it comprises a main module for high-speed transmission of the sensing information detected from the sensor module to the network interworking processor via the SPI communication. The method of claim 3, The sensor module and the main module may be connected to one or more interfaces of SPI, Analog-Digital Converter (ADC), Inter-Integrated Circuit Protocol (I2C), and General Purpose Input Output (GPIO). Network based high speed sensor monitoring device. Receiving, by a network interworking processor, a sensing start command from a management server, and transmitting the received sensing start command to a sensor node through SPI communication; Interpreting, by the sensor node, the received command and performing sensing according to the interpreted command to collect sensing information; Transmitting the collected sensing information to a network interworking processor using SPI communication; And The network-based high speed sensor monitoring method using the SPI communication comprising the step of transmitting the sensing information in real time to the management server by the network interworking processor.

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