KR102159875B1 - Integrated Sensor Profile Update System - Google Patents

Abstract

A method and system for updating a sensor protocol is disclosed.
This embodiment is a form in which a legacy interface and a non-legacy interface are integrated into one, and can be interlocked with various sensors, and the sensing data received from each of the various sensors is converted according to different protocols, and the protocol corresponding to each of the various sensors. Provides a method and system for updating a sensor protocol that can communicate with each of various sensors by reading a protocol in the form of a profile from an external device and loading it into an internal memory without a separate program for updating the device.

Description

Integrated Sensor Profile Update System {Integrated Sensor Profile Update System}

The present embodiment relates to an integrated sensor protocol update system for collectively updating protocols of remotely located sensors.

The contents described below merely provide background information related to the present embodiment and do not constitute the prior art.

In general, firmware is a microprogram that controls hardware by being written to a storage device such as a ROM (Read Only Memory). Many equipment having mobile characteristics such as construction equipment, civil engineering equipment, ships and aircraft, which are widely spread around the world, are driven and controlled by firmware.

Malfunctions of equipment may be caused due to defective firmware. In general, when malfunction occurs, firmware update is required, or firmware update is required even in the process of upgrading hardware of equipment. It takes a lot of time and money to update the firmware of devices. For example, construction equipment such as excavators, wheel loaders, combos and port lanes used from around the world are mostly located in areas where traffic and global communication are poor. In order to update the firmware of construction equipment, the manager had to go to the site and perform the update.

Considering the difficulty of updating the field, a technology for updating firmware using a communication network is required. Recently, a technology for updating firmware using a communication network has been introduced, but only a simple firmware update is introduced, and reliability or stability of the update is not guaranteed.

In general, when a sensor used in an industrial site wants to interwork with a network, environment settings must be made according to various types of sensors. In other words, various sensors such as simple switch-type sensors, wired sensors, wireless sensors, analog sensors, and digital sensors exist as sensors used in industrial sites.

Even with the same sensor, if the model name is changed, all programs, protocols, and interfaces related to the sensor must be changed to interwork with the network. In addition, there are sensors (eg, LED sensors) that cannot be simply numbered, and equipment related to sensors cannot be arbitrarily changed or settings (hardware, software) in industrial sites. It takes a lot of cost and time to change all the environmental information of the network according to the above-described sensor information change.

Accordingly, there is a need for an adapter technology capable of integrating and managing sensor-related information such as communication and protocol.

This embodiment is a form in which a legacy interface and a non-legacy interface are integrated into one, and can be interlocked with various sensors, and the sensing data received from each of the various sensors is converted according to different protocols, and the protocol corresponding to each of the various sensors. An object of the present invention is to provide an integrated sensor protocol update system capable of communicating with each of various sensors by reading a protocol in the form of a profile from an external device and loading it into an internal memory without a separate program for updating the device.

According to an aspect of this embodiment, a plurality of sensors (Sensor) for generating and transmitting the sensing data sensed the surrounding environment; USA (USA) interlocks with each of the plurality of sensors using a plurality of interfaces provided, and converts the sensing data received from the plurality of interfaces based on a plurality of pre-stored protocols and transmits it to the outside. Universal Sensor Adapter); A host server interworking with the USA based on a network, checking whether the plurality of protocols stored in the plurality of USA is a communication capable protocol, and controlling the USA based on a result of the check; And a local server that transmits the protocol for the sensor to the USA and the host server in the form of a profile.

According to another aspect of the present embodiment, a process of generating and transmitting sensing data obtained by sensing a surrounding environment by a plurality of sensors; Receiving the sensing data by interlocking with each of the plurality of sensors using a plurality of interfaces provided in the USA; Transmitting the sensing data to the outside by converting the sensing data in the USA based on a plurality of pre-stored protocols; A process in which a host server interworks with the USA based on a network and checks whether the plurality of protocols stored in the plurality of USA is a communication capable protocol; It provides a method for updating a sensor protocol, comprising the process of controlling the USA based on a result of the confirmation in the host server.

As described above, according to the present embodiment, a legacy interface and a non-legacy interface are integrated into one, and can be interlocked with various sensors, and sensing data received from each of the various sensors is converted according to different protocols, Without a separate program for updating a protocol corresponding to each of various sensors, a protocol can be read from an external device in the form of a profile and loaded into an internal memory to communicate with each of various sensors.

1 is a block diagram schematically showing a sensor protocol update system according to the present embodiment.
2 is a block diagram schematically showing the USA according to the present embodiment.
3 is a diagram for explaining an operation when a protocol previously registered in a local server is updated according to the present embodiment.
4 is a diagram illustrating a method of downloading a protocol when a new sensor connects in the USA according to the present embodiment.
5 is a diagram for explaining a protocol update operation between a host server and a local server according to the present embodiment.
6 is a diagram for explaining a method of downloading a protocol when a new sensor between a host server and a local server connects according to the present embodiment.
7 is a diagram for describing a case where the USA according to the present embodiment includes a local server.
8 is a diagram for explaining a case where the USA according to the present embodiment is connected to another USA.

Hereinafter, this embodiment will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing a sensor protocol update system according to the present embodiment.

The sensor protocol update system according to the present embodiment includes sensors 101, 102, 103, 104, 105, 106, Universal Sensor Adapter (USA) (110-1,110-2,110-N), local server 120, network 130 ), including the host server 140. Components included in the sensor protocol update system are not necessarily limited thereto.

The sensors 101, 102, 103, 104, 105, and 106 refer to various sensors capable of transmitting sensing data via wired or wireless. The sensors 101, 102, 103, 104, 105, and 106 are the first sensor 101, the second sensor 102, the third sensor 103, and the fourth sensor that sense various field conditions used in industrial sites. 104, a fifth sensor 105, and a sixth sensor 106. The sensors 101, 102, 103, 104, 105, and 106 transmit sensing data that sensed various field conditions to the USA (110-1, 110-2, 110-N).

The plurality of sensors 101, 102, 103, 104, 105, and 106 generate sensing data by sensing the surrounding environment, respectively, and transmit them to the USA (110-1, 110-2, 110-N).

USA (110-1, 110-2, 110-N) is a universal sensor adapter, and converts interoperability based on the sensors 101, 102, 103, 104, 105, 106 and the network 130. The USA (110-1, 110-2, 110-N) can convert various sensing information received from the sensors 101, 102, 103, 104, 105, and 106 and simultaneously transmit it to the outside. USA (110-1, 110-2, 110-N) primarily processes sensor information, and forms (eg, digitizes) unstructured data (eg, images).

USA (110-1, 110-2, 110-N) platforms software and hardware to cope with various protocols. The USA 110-1, 110-2, 110-N can freely update the sensor protocol on the network 130 (eg, the Internet). For example, USA (110-1, 110-2, 110-N), if the hardware platform is universally implemented using TCP/IP, it can organically interwork with TCP/IP, and the protocol can be updated wirelessly. It is possible.

The USA 110-1 may also communicate with other USA 110-2 and 110-N. When an industrial worker in a remote location changes the order of Sensor A, Sensor B, and Sensor C or adds a new Sensor D, the industrial worker directly visits the site and registers the protocol for the new Sensor D, and the host server 140 The protocol for the sensor D is also directly uploaded, because the USA (110-1, 110-2, 110-N) according to this embodiment and the host server 140 reads the protocol from the local server 120 every booting time. Even if sensor D is added, the protocol is updated.

The USA (110-1, 110-2, 110-N) or the host server 140 can download protocols for each sensor (101, 102, 103, 104, 105, 106) device from a separate protocol server. . Protocols for each sensor model are constructed as a separate local server 120, downloaded to a user terminal (e.g., notebook, PC), and entered into USA (110-1, 110-2, 110-N) or to the host server 140. Can be transmitted. The USA (110-1, 110-2, 110-N) can selectively communicate among long-distance wireless communication, Wi-Fi, Ethernet (wired), serial bus, and Bluetooth.

USA (110-1, 110-2, 110-N) is a single local server platform of a device concept for interworking with various sensors (101, 102, 103, 104, 105, 106). USA (110-1, 110-2, 110-N) includes a software block containing some sort of algorithm for interfacing various sensors (101, 102, 103, 104, 105, 106).

USA (110-1, 110-2, 110-N) includes a communication handler, a message generator, and a self organizer. USA (110-1, 110-2, 110-N) provides a communication interface for wired or wireless communication using a communication handler. USA (110-1, 110-2, 110-N) parses and converts messages transmitted and received using a message generator. USA (110-1, 110-2, 110-N) uses the self-organizer to communicate via Wi-Fi, and when the signal strength decreases, it performs a function of changing to Bluetooth.

USA (110-1, 110-2, 110-N) can interface various sensors (101, 102, 103, 104, 105, 106). USA (110-1, 110-2, 110-N) refers to an adapter that integrates a legacy interface and a non-legacy interface into one, converts it according to each different protocol internally, and transmits it to the outside.

USA (110-1, 110-2, 110-N) automatically updates the protocol table (212a) automatically. USA (110-1, 110-2, 110-N) does not require a separate program to update the protocol table 212a, and can update the protocol only with the profile stored in the local server 120. have.

When the USA (110-1, 110-2, 110-N) communicates with another USA, when a profile of a specific USA among a plurality of USA is changed, the remaining USA devices also boot to receive the profile.

The USA (110-1, 110-2, 110-N) interlocks with each of the plurality of sensors 101, 102, 103, 104, 105, and 106 using a plurality of interfaces provided. The USA (110-1, 110-2, 110-N) converts sensing data received from a plurality of interfaces based on a plurality of previously stored protocols, and transmits it to the outside.

USA (110-1, 110-2, 110-N) receives a new sensor code (eg, sensor code Xi) from the new sensor 107 when a new sensor 107 is connected. The USA (110-1, 110-2, 110-N) checks whether a new sensor code (eg, sensor code Xi) has been previously registered in the protocol table 212a. USA (110-1, 110-2, 110-N) is a result of the confirmation, if a new sensor code (eg, sensor code Xi) is not registered, a new sensor code (eg, sensor code Xi) to the host server 140 Transmits a protocol request signal corresponding to.

USA (110-1, 110-2, 110-N) downloads the protocol response signal from the host server (140). USA (110-1, 110-2, 110-N) extracts a protocol (eg, protocol Yi) corresponding to a new sensor code (eg, sensor code Xi) from the protocol response signal and registers it in the protocol table 212a. .

The local server 120 stores protocols corresponding to each of the sensors 101, 102, 103, 104, 105, and 106. The protocol stored in the local server 120 is stored in the form of a single document. The local server 120 means an embedded web server.

In the local server 120, protocols of sensors used in each of the USA (110-1, 110-2, 110-N) are registered in the form of a profile. The local server 120 is profiled with protocol information used by the sensors 101, 102, 103, 104, 105, and 106, respectively, interlocked in the USA (110-1, 110-2, 110-N). .

The local server 120 changes the profile by combining the interfaces matching each of the sensors 101, 102, 103, 104, 105, 106 and the USA (110-1, 110-2, 110-N). The local server 120 presets a reboot path between USA (110-1, 110-2, 110-N). That is, in industrial sites, a linear network in which a path through which data is transmitted and received is set is used for stability.

The local server 120 transmits the protocol for the sensors 101, 102, 103, 104, 105, and 106 to the USA (110-1, 110-2, 110-N) and the host server in the form of a profile. . The local server 120 continuously updates a previously stored protocol in connection with the sensor manufacturer server.

The local server 120 includes a local DB 122 that stores protocols corresponding to various sensors 101, 102, 103, 104, 105, and 106. The local DB 122 refers to a general data structure implemented in a storage space (hard disk or memory) of a computer system using a database management program (DBMS). The local DB 122 refers to a data storage type in which data can be searched (extracted), deleted, edited, and added.

The local DB 122 may be implemented using a relational database management system (RDBMS), or may be implemented using an object-oriented database management system (OODBMS). The local DB 122 has fields or elements for classifying protocols.

The network 130 refers to a network capable of transmitting and receiving data through an Internet protocol using various wired and wireless communication technologies such as an Internet network, an intranet network, a mobile communication network, and a satellite communication network.

The network 130 is not only a closed network such as a local area network (LAN), a wide area network (WAN), an open network such as the Internet, but also a code division multiple access (CDMA), wideband code division multiple access (WCDMA). ), Global System for Mobile Communications (GSM), Long Term Evolution (LTE), Evolved Packet Core (EPC), 5G, etc., as well as next-generation networks and cloud computing networks to be implemented in the future.

The host server 140 includes hardware modules identical to those of a typical web server or network server. The host server 140 refers to a computer system or computer software (web server program) that derives and provides a work result corresponding to a request for performing work from a client or another web server.

The host server 140 includes a series of application programs running on the web server or various databases built in the device. The host server 140 communicates with the local server 120 and the USA 110-1, 110-2, and 110-N via the network 130.

A protocol for the sensor is stored in the host server 140 and the USA 110-1, 110-2, and 110-N, respectively. The host server 140 and the USA (110-1, 110-2, 110-N) refer to the local server 120 (meaning to first review the local server 120 before communicating). The host server 140 and the USA (110-1, 110-2, 110-N) refer to the local server 120 to receive a new protocol.

When the host server 140 first checks for a new protocol, all protocols stored in other USA are updated with the new protocol. The host server 140 and the USA (110-1, 110-2, 110-N) first examine the local server 120 before communicating. Since protocols are also stored in the host server 140 and the USA (110-1, 110-2, 110-N), communication can be performed according to the protocol, but to check whether the new protocol has been updated, the host server 140 ) And USA (110-1, 110-2, 110-N) refer to the local server 120 first.

In general, when replacing a sensor installed in an industrial site, first turn off the power of the facility interlocking with the sensor. Thereafter, the facility (eg, USA) refers to the local server 120 every time it boots. The local server 120 registers a protocol transmitted from the host server 140 and a profile pair matching the protocol in the local DB 122 in the local memory 314. The host server 140 continuously updates the protocol registered in the local server 120 through communication with the local server 120. Through this, when the host server 140 has a plurality of USA (110-1, 110-2, 110-N) to be managed, for example, even if there are hundreds of USA, the USA is referred without needing to control all of the hundreds of USA. It is possible to update and manage all protocols of the USA communicating with the protocol management in the local server 120 at once.

In other words, the host server 140 is required for communication between the host server 140 and the USA 110 through one or more local servers 120 arranged for each site without the need to individually control a plurality of USA to be managed. Multiple protocols can be integratedly updated and distributed, and even when a new USA 110 is added on the network, a new communication protocol for this is applied to the local server 120 and all USA connected through the local server 120 (110) This can be reflected in each protocol. When the host server 140 or the USA 110-1, 110-2, 110-N refer to the local server 120, the update can be performed without fear of the protocol being twisted during the update process without the signal being cut off.

On the other hand, between the host server 140 and the USA (110 (110-1, 110-2, 110-N)) or the host server 140 and a specific USA (110-1, 110-2, 110-N) In the process of communicating with a specific sensor connected through a network, both the host server 140 and the USA (110-1, 110-2, 110-N) are configured to refer to the local server 120 for communication.

From the perspective of the host server 140, the device of a specific USA (110-1, 110-2, 110-N) among a plurality of USA (110-1, 110-2, 110-N) and sensor information that communicates with a specific sensor In order to receive, the local server 120 must be referred for communication. When the host server 140 boots, protocol information is read from the local DB 122 of the local server 120 and is retrieved to the host memory 514 of the host server 140.

The host server 140 stores protocol information in the host DB 142, but does not primarily use the information stored in the host DB 142 in the process of communicating with the USA 110 or sensors connected thereto, When booting, first, it is read from the local server 120 and stored in the host server memory 514, and communicates with the USA (110-1, 110-2, 110-N) based on the stored protocol.

In general, since the server stores the protocol for communication in the flash memory area, the protocol cannot be changed. In other words, in a general server, the protocol is fixed and used. In the case of communication by fixing a protocol in a general server, a new sensor or hardware is poor in interoperability, but the host server 140 according to the present embodiment cannot freely utilize the protocol.

The host server 140 reflects this to the local server 120 periodically or when some stored protocols need to be updated. The host server 140 updates the protocol in the local server memory 314, which is an internal memory of the local server 120, using the UI in order to update the protocol stored in the local DB 122 of the local server 120.

The host server 140 interworks with the USA (110-1, 110-2, 110-N) based on the network 130. The host server 140 checks whether a plurality of protocols stored in the plurality of USA (110-1, 110-2, 110-N) is a communication capable protocol, and based on the confirmation result, the USA (110-1, 110-) 2, 110-N).

When the host server 140 receives a protocol request signal from the USA (110-1, 110-2, 110-N), it searches the host DB 142 and provides a protocol corresponding to a new sensor code (eg, sensor code Xi). It is checked whether or not (e.g., protocol Yi) exists. As a result of the confirmation, when a protocol (eg, protocol Yi) corresponding to a new sensor code (eg, sensor code Xi) exists, the host server 140 controls the local server 120 to provide a new sensor from the host DB 142. After storing the protocol (eg, protocol Yi) corresponding to the code (eg, sensor code Xi) in the local server memory 314, the USA (110-1, 110-2, 110) is used as a protocol response signal corresponding to the protocol request signal. -N).

Field managers can install new sensor devices on industrial sites. In some cases, the field manager may upload a protocol used by the sensor device newly installed in the local server 120 located in a specific industrial site instead of the host server 140. In this case, the host server 140 needs to distribute the newly registered protocol to all local servers other than the corresponding local server 120 and all USA 110 connected thereto.

When the host server 140 receives a protocol request signal from the USA 110 to which a newly installed sensor device is connected, the host DB 142 is searched for a protocol corresponding to a new sensor code (eg, sensor code Xi). Check whether Yi) exists.

When the protocol (eg, protocol Yi) corresponding to the new sensor code (eg, sensor code Xi) does not exist, the host server 140 sends a new sensor code (eg, sensor code Xi) from the local server 120. A corresponding protocol (eg, protocol Yi) is received and read into the host server memory 514, and then reflected in the host DB 142. Thereafter, the host server 140 controls the updated protocol in the host DB 142 to be distributed to the remaining local servers 120 and USA 110. In addition, the host server 140 transmits a protocol response signal corresponding to the protocol request signal to the USA (110-1, 110-2, 110-N) through the corresponding local server 120.

When a protocol update is required, the local server 120 may transmit a protocol update signal to the host server 140. When the host server 140 receives a protocol update signal from the local server 120, the host server 140 updates a protocol that needs to be updated among the protocols previously registered in the host DB 142 based on the protocol update signal, and then divides the protocol into an update protocol.

The host server 140 communicates with the USA (110-1, 110-2, 110-N) to determine whether an update-required protocol exists among the protocols stored in the USA (110-1, 110-2, 110-N). Confirm. As a result of the confirmation, the host server 140 transmits the update protocol to the USA (110-1, 110-2, 110-N) and transmits the update protocol to the USA (110-1, 110-2, 110-) if there is an update required protocol. The protocol stored in the protocol table 212a of N) is updated.

Whenever the USA (110-1, 110-2, 110-N) and the host server 140 reboot or periodically, the profile is re-read from the local server 120 to update the profile.

When the host server 140 and the USA (110-1, 110-2, 110-N) recognize that the profile has been updated when booting, they retrieve the profile from the local server 120 to the internal memory and check the communication target. Communicate with the target of communication.

The host server 140 and the USA (110-1, 110-2, 110-N) continuously copy the profile from the local server 120 and move, creating the same timetable (reference table). The host server 140 and the USA (110-1, 110-2, 110-N) update the protocol from the local server 120 in a reference manner. The host server 140 and USA (110-1, 110-2, 110-N) change configuration information using profile information.

The USA (110-1, 110-2, 110-N) and the host server 140 do not first check the protocol stored in the internally at a preset cycle or every booting time, and connect to the local server 120 first and then local The protocol stored in the server 120 is read and loaded into the internal memory, and the protocol is updated each time.

USA (110-1, 110-2, 110-N) and host server 140 receive the protocol stored in the local server 120 in the form of a profile and load it into the internal memory, based on the protocol loaded into the internal memory. It communicates with the sensors 101, 102, 103, 104, 105, and 106.

When the USA (110-1) communicates with other USA (110-2, 110-N), any one USA (eg, 110-2) among a plurality of USA (110-1, 110-2, 110-N) If the protocol stored in) is changed, the remaining USA (110-1, 110-N) reads the profile stored in the local server 120 at a preset cycle or when booting, and updates the protocol in the form of loading it into the internal memory.

2 is a block diagram schematically showing the USA according to the present embodiment.

USA (110-1, 110-2, 110-N) according to this embodiment is a sensor interface unit 202, adapter control unit 211, adapter memory 212, power supply controller 213, connector 221 , An output unit 222, and a communication interface 204. Components included in USA (110-1, 110-2, 110-N) are not necessarily limited thereto.

Each component included in the USA (110-1, 110-2, 110-N) is connected to a communication path connecting a software module or a hardware module inside the device so that they can operate organically with each other. These components communicate using one or more communication buses or signal lines.

Each component of USA (110-1, 110-2, 110-N) shown in FIG. 2 refers to a unit that processes at least one function or operation, and is a software module, a hardware module, or a software and hardware component. It can be implemented in combination.

Each component included in the USA (110-1, 110-2, 110-N) is connected by a data bus.

The sensor interface unit 202 includes a digital input 216, a digital interface 217, an analog sensor 218, and a camera interface 219 for interworking with various sensors 101, 102, 103, 104, 105, and 106. Include. The sensor interface unit 202 includes a plurality of interfaces 216, 217, 218 and 219 for interworking with the plurality of sensors 101, 102, 103, 104, 105, and 106, respectively. The sensor interface unit 202 receives specific sensing data from a specific interface among the plurality of interfaces 216, 217, 218, and 219.

Adapter control unit 211 is a control means for controlling the overall functions of USA (110-1, 110-2, 110-N), each component included in USA (110-1, 110-2, 110-N) Control. The adapter control unit 211 may be configured by including a microprocessor or the like. The adapter control unit 211 extracts a specific protocol corresponding to specific sensing data from the protocol table 212a. The adapter controller 211 converts specific sensing data to be transmitted to the outside based on a specific protocol.

The adapter control unit 211 selects a sensor protocol corresponding to a sensor connected to the sensor interface 202 from among a plurality of sensor protocols stored in the adapter memory 212, and communicates with the connected sensor using the selected sensor protocol. .

The adapter control unit 211 outputs the sensor signal acquired from the connected sensor to the local network with the communication interface 204 therebetween.

The adapter control unit 211 acquires the update sensor protocol corresponding to any one of a plurality of types of sensor protocols stored in the adapter memory 212 from the local network through the communication interface 204, and updates the memory contents as the sensor protocol. Update.

The adapter control unit 211 acquires a new sensor protocol corresponding to the new sensor through a communication interface in the local network, and registers the new sensor protocol in the adapter memory 212.

During the sensor protocol update process, the adapter control unit 211 searches for an updated sensor protocol on the local network and, when an updated sensor protocol exists on the local network, acquires the updated sensor protocol from the local network.

The adapter control unit 211 executes a sensor protocol update process upon booting. The adapter control unit 211 executes sensor protocol update processing according to the set update schedule.

When a sensor code specifying a new sensor is set, the adapter control unit 211 registers a new sensor protocol in the adapter memory 212 to search for a sensor protocol related to the sensor code on the local network, and retrieves the sensor code obtained through the search. Acquired from the local network as a protocol.

The adapter memory 212 is a storage means for storing various data required for driving the USA, and stores a protocol table 212a. The adapter memory 212 stores a plurality of protocols for communicating with each of the plurality of sensors 101, 102, 103, 104, 105, and 106 in the form of a protocol table 212a.

The power supply controller 213 performs a function of supplying power to each component included in the USA 110-1, 110-2, and 110-N. The power supply controller 213 supplies power to the sensor interface unit 202, the adapter memory 212, the adapter control unit 211, and the communication interface unit 204.

The connector 221 is connected to another USA and receives data from another USA. The output unit 222 outputs data to another USA. The communication interface 204 includes a wired unit 214 and a wireless unit 215. The communication interface unit 204 transmits sensing data to an external device by wire or wireless under the control of the adapter controller 211.

3 is a diagram for explaining an operation when a protocol previously registered in a local server is updated according to the present embodiment.

As shown in FIG. 3, the operation when the protocol registered in the local DB 122 of the local server 120 is updated.

An operation of updating the protocol registered in the local DB 122 by the local server 120 is as follows.

① The local server 120 receives a protocol update signal from the outside. The local server 120 updates a protocol that needs to be updated among protocols previously registered in the local DB 122 based on the protocol update signal. The local server 120 classifies an updated protocol among the previously registered protocols as an update protocol.

② The local control unit 312 of the local server 120 communicates with the adapter control unit 211 of the USA (110-1, 110-2, 110-N) to check whether an update-required protocol exists.

③ When an update-needed protocol exists in the adapter memory 212 in the USA (110-1, 110-2, 110-N), the local control unit 312 of the local server 120 sets the update protocol to USA (110-1). , 110-2, 110-N).

④ The adapter control unit 211 of the USA (110-1, 110-2, 110-N) updates a previously stored protocol based on the update protocol received from the local server 120.

USA (110-1, 110-2, 110-N) performs free communication between a plurality of different sensor nodes. USA (110-1, 110-2, 110-N) has a structure to store and update the protocol of each sensor node performing communication in the protocol table (212a).

Each sensor node communicates with the USA (110-1, 110-2, 110-N) at every boot, and refers to the protocol table 212a in the USA (110-1, 110-2, 110-N). Most of the communication protocols are stored in each sensor node and are not variable. However, the sensor node according to the present embodiment stores the local DB 122 in the local server 120 at every boot (and at a predetermined time interval) as a protocol table 212a. It is called and referred to to perform communication.

The USA (110-1, 110-2, 110-N) acquires at least one of the updated sensor protocol and the new sensor protocol from the local server 120. The local server 120 has a local database 122 configured on a common local network with the USA 110-1, 110-2, and 110-N to store protocols in which a plurality of types of sensor protocols are registered.

USA (110-1, 110-2, 110-N) refers to the local DB 122 when booting, and when an updated sensor protocol exists in the local DB 122, the local server 140 acquires the updated sensor protocol. do.

The USA (110-1, 110-2, 110-N) refers to the local DB 122 according to the set update schedule, and if an update sensor protocol exists in the local DB 122, the update sensor in the local server 120 Acquire the protocol.

4 is a diagram illustrating a method of downloading a protocol when a new sensor connects in the USA according to the present embodiment.

As shown in Figure 4, the USA (110-1, 110-2, 110-N), when a new sensor 107 is connected, download a protocol corresponding to the new sensor 107 from the local server 120 do.

The operation of downloading the protocol from the local server 120 by the USA (110-1, 110-2, 110-N) is as follows.

① The USA (110-1, 110-2, 110-N) receives a'sensor code Xi' from the new sensor 107 when a new sensor 107 is connected.

② Adapter control unit 211 in USA (110-1, 110-2, 110-N) searches protocol table 212a (sensor code, protocol) of adapter memory 212 and'sensor code Xi' is pre-registered. Check whether or not.

③ If the'sensor code Xi' in the protocol table 212a is not already registered in the table, the adapter control unit 211 in the USA (110-1, 110-2, 110-N) is sent to the local server 120. Transmits a protocol request signal corresponding to sensor code Xi'.

④ The local control unit 312 in the local server 120 searches the local DB 122 and checks whether a protocol corresponding to the'sensor code Xi' is registered. If the corresponding protocol'protocol Yi' is registered in the local DB 122, the local control unit 312 uses the'protocol Yi' as a protocol response signal corresponding to the protocol request signal. , 110-N). If the corresponding protocol'Protocol Yi' is not registered in the local DB 122, the local control unit 312 requests the host server 140 to search the host DB 142 to correspond to the'sensor code Xi'. Read'Protocol Yi'. The local control unit 312 in the local server 120 transmits'protocol Yi' as a protocol response signal corresponding to the protocol request signal to the USA (110-1, 110-2, 110-N).

⑤ The adapter control unit 211 in the USA (110-1, 110-2, 110-N) downloads a protocol response signal including'protocol Yi' from the local server 120. In other words, the adapter control unit 211 in the USA (110-1, 110-2, 110-N) downloads the'protocol Yi' extracted from the local DB 122 in the local server 120, and the adapter memory 212 It is registered in the internal protocol table 212a.

The USA (110-1, 110-2, 110-N) acquires at least one of the updated sensor protocol and the new sensor protocol from the local server 120. The local server 140 has a local database 122 configured on a common local network with the USA 110-1, 110-2, and 110-N to store protocols in which a plurality of types of sensor protocols are registered.

USA (110-1, 110-2, 110-N) refers to the local DB 122 when a sensor code specifying a new sensor is set, and the sensor protocol related to the sensor code is converted into a new sensor protocol as the local server 120. Acquire from

5 is a diagram for explaining a protocol update operation between a host server and a local server according to the present embodiment.

As shown in FIG. 5, an operation when a protocol registered between the host server 140 and the local server 120 is updated.

An operation in which the host server 140 updates the protocol registered in the host DB 142 is as follows.

① The host server 140 receives a protocol update signal from the outside. The host server 140 updates a protocol that needs to be updated among protocols previously registered in the host DB 142 based on the protocol update signal. The host server 140 classifies an updated protocol among previously registered protocols as an update protocol.

② The host control unit 512 of the host server 140 communicates with the local control unit 312 of the local server 120 to check whether an update-required protocol exists.

③ When an update-needed protocol exists in the local DB 122 in the local server 120, the host control unit 512 of the host server 140 transmits the update protocol to the local server 120.

④ The local control unit 312 of the local server 120 updates the protocol previously stored in the local DB 122 based on the update protocol received from the host server 140.

6 is a diagram for explaining a method of downloading a protocol when a new sensor between a host server and a local server connects according to the present embodiment.

As illustrated in FIG. 6, when a new sensor 107 is connected, the local server 120 downloads a protocol corresponding to the new sensor 107 from the host server 140.

An operation of the local server 120 downloading a protocol from the host server 140 is as follows.

① When the new sensor 107 connects, the local server 120 receives a'sensor code Xi' corresponding to the identification code of the new sensor 107 from the new sensor 107.

② The local control unit 312 in the local server 120 searches for the local DB 122 (sensor code, protocol) in the local memory 314 and checks whether the'sensor code Xi' has already been registered.

③ When the'sensor code Xi' in the local DB 122 is not already registered in the table, the local control unit 312 in the local server 120 requests a protocol corresponding to the'sensor code Xi' to the host server 140 Transmit the signal.

④ The host control unit 512 in the host server 140 searches the host DB 142 and reads the “protocol Yi” corresponding to the “sensor code Xi”. The host controller 512 in the host server 140 transmits'protocol Yi' as a protocol response signal corresponding to the protocol request signal to the local server 120.

⑤ The local control unit 312 in the local server 120 downloads a protocol response signal including “protocol Yi” from the host server 140. In other words, the local control unit 312 in the local server 120 downloads the'protocol Yi' extracted from the host DB 142 in the host server 140, and registers it in the local DB 122 in the local memory 314. .

The host server 140 includes a host DB 142 configured in the network 130 and registered with a plurality of sensor protocols.

When the update sensor protocol exists in the host DB 142 by referring to the host DB 142 at a predetermined timing, the local server 140 acquires the updated sensor protocol from the host server 140.

The host DB 142 is set on the Internet and stores a plurality of types of sensor protocols.

The local server 140 acquires a sensor protocol not registered in the local DB 122 from the host server 140.

7 is a diagram for describing a case where the USA according to the present embodiment includes a local server.

As shown in FIG. 7, the USA 110A may be implemented in a form including the local server 120 or may be implemented in a form including only the local DB 122.

USA (110A) including the local DB (122) performs free communication with a plurality of different USA (110-1, 110-2). The USA 110A has a structure for storing and updating the protocol of each sensor node performing communication in the local DB 122.

A plurality of USA (110-1, 110-2, 110-N) is set on the local network, so that at least one USA (110A) among the plurality of USA (110-1, 110-2, 110-N) It can act as 140.

A plurality of different USA (110-1, 110-2) refer to the local DB (122) in the USA (110A) by communicating with the USA (110A) at every boot. A plurality of different USA (110-1, 110-2) calls the local DB 122 in the local server 120 to the internal protocol table (212a) at every boot (and at a certain time interval) and refer to Communication.

USA (110A) and a plurality of different USA (110-1, 110-2) can communicate with the LAN in the same industrial site.

8 is a diagram for explaining a case where the USA according to the present embodiment is connected to another USA.

The local server 120 including the local DB 122 and a plurality of USA (110-1, 110-2) can communicate through a LAN within the same industrial site.

As shown in FIG. 8, any one USA 110-2 among the plurality of USA 110-1 and 110-2 may perform communication by accessing the USA 110B of the lower concept. Any one of the plurality of USA (110-1, 110-2) USA (110-2) is a lower concept USA (110B) performs free communication.

The USA 110-1, 110-2, 110-N can connect the communication interface 204 to the sensor interface 202 of another sensor adapter.

The lower concept USA (110B) is also a universal sensor adapter, and the sensors (101, 102, 103, 104) interlock. The USA 110B can convert various sensing information received from the sensors 101, 102, 103, and 104 and transmit it to the USA 110-2 at the same time. The USA 110B primarily processes sensor information, and forms unstructured data.

The USA 110B also loads the local DB 122 in the local server 120 into the internal protocol table 212a at every booting (and at regular time intervals) and performs communication with reference.

The above description is merely illustrative of the technical idea of the present embodiment, and those of ordinary skill in the technical field to which the present embodiment belongs will be able to make various modifications and variations without departing from the essential characteristics of the present embodiment. Accordingly, the present exemplary embodiments are not intended to limit the technical idea of the present exemplary embodiment, but are illustrative, and the scope of the technical idea of the present exemplary embodiment is not limited by these exemplary embodiments. The scope of protection of this embodiment should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present embodiment.

101,102,103,104,105,106: sensor
110-1, 110-2, 110-N: USA
120: local server 130: network
140: host server 142: host DB
202: sensor interface
204: communication interface
211: adapter control unit 212: adapter memory
212a: protocol table
213: power supply controller 221: connector
222: output
312: local control unit 314: local memory
512: host control unit 514: host memory

Claims (12)

A plurality of sensors for generating and transmitting sensing data that senses the surrounding environment;
USA (USA) interlocks with each of the plurality of sensors using a plurality of interfaces provided, and converts the sensing data received from the plurality of interfaces based on a plurality of pre-stored protocols and transmits it to the outside. Universal Sensor Adapter);
A host server interworking with the USA based on a network, checking whether the plurality of protocols stored in the plurality of USA is a communication capable protocol, and controlling the USA based on a result of the check; And
Includes a local server for transmitting the protocol for the sensor to the USA and the host server in the form of a profile,
The host server transmits a protocol previously registered in the host DB to the local server to update the profile stored in the local DB of the local server, and the USA is the local DB of the local server for communication with the host server. It is characterized by searching for and reading the required protocol,
The USA is,
A sensor interface unit having a plurality of interfaces for interworking with each of the plurality of sensors, and receiving specific sensing data from a specific interface among the plurality of interfaces;
An adapter memory storing a plurality of protocols for communicating with each of the plurality of sensors in the form of a protocol table;
An adapter control unit for extracting a specific protocol corresponding to the specific sensing data from the protocol table and converting the specific sensing data to be transmitted to the outside based on the specific protocol; And
Communication interface unit that transmits the sensing data to an external device by wire or wireless under control of the adapter control unit
Sensor protocol update system comprising a. The method of claim 1,
The USA and the host server,
The protocol is updated every time in the form of reading the protocol stored in the local server and loading it into the internal memory after connecting to the local server first without first checking the protocol stored in the internal memory at a preset cycle or every booting. Sensor protocol update system. The method of claim 2,
The USA and the host server,
A sensor protocol update system, comprising: receiving the protocol stored in the local server in the form of a profile, loading it into an internal memory, and communicating with the sensor based on the protocol loaded into the internal memory. The method of claim 1,
When the USA communicates with another USA, if the protocol stored in any one of the USA is changed, the rest of the USA reads the profile stored in the local server at a preset cycle or when booting and loads it into the internal memory. Sensor protocol update system, characterized in that to update the protocol. delete The method of claim 1,
The USA is,
A connector connected to another USA and receiving data from the other USA;
An output unit outputting data to the other USA; And
Power supply controller for supplying power to the sensor interface unit, the adapter memory, the adapter control unit, and the communication interface unit
Sensor protocol update system, characterized in that it further comprises. The method of claim 1,
The USA is,
When a new sensor is connected, a new sensor code is given from the new sensor, and it is checked whether the new sensor code is already registered in the protocol table, and as a result of the check, if the new sensor code is not registered, the A sensor protocol update system, characterized in that transmitting a protocol request signal corresponding to the new sensor code to a host server. The method of claim 7,
The host server,
Upon receiving the protocol request signal from the USA, the host DB is searched to check whether a protocol corresponding to the new sensor code exists, and as a result of the confirmation, if a protocol corresponding to the new sensor code exists, the host A sensor protocol update system, comprising reading a protocol corresponding to the new sensor code from a DB into a server memory and transmitting the protocol response signal corresponding to the protocol request signal to the USA. The method of claim 8,
The host server,
If the protocol corresponding to the new sensor code does not exist, the protocol corresponding to the new sensor code is received from the local server, read into the server memory, and then sent to the USA as the protocol response signal corresponding to the protocol request signal. Sensor protocol update system, characterized in that to transmit. The method of claim 8,
The USA is,
And downloading the protocol response signal from the host server, extracting a protocol corresponding to the new sensor code from the protocol response signal, and registering it in a protocol table. The method of claim 1,
The host server,
When a protocol update signal is received from the local server, a protocol that needs to be updated among protocols previously registered in the host DB is updated based on the protocol update signal and then classified into an update protocol. The method of claim 11,
The host server,
In communication with the USA, it is checked whether or not an update-needing protocol exists among the protocols stored in the USA, and if a protocol requiring an update is present, the update protocol is transmitted to the USA, and the protocol table of the USA A sensor protocol update system, characterized in that the stored protocol is updated.

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