KR20200005130A - Method And System for Updating Sensor Profile - Google Patents

Abstract

A method and system for updating a sensor protocol are disclosed. According to an embodiment of the present invention, provided are a method and system for updating a sensor protocol, which can interoperate with various sensors by integrating a legacy interface and a non-legacy interface into one, converts sensing data received from each of the various sensors according to different protocols, and can communicate with each of the various sensors by reading the protocols as a profile from an external device and loading the profile into an internal memory without the need for a separate program to update the protocol corresponding to each of the various sensors.

Description

Method and System for Updating Sensor Profile

This embodiment relates to a method and system for updating a sensor protocol to collectively update a protocol of a remotely located sensor.

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

In general, firmware is a microprogram that is stored in a repository such as a read only memory (ROM) to control hardware. Many equipments with mobile characteristics, such as construction equipment, civil equipment, ships and aircraft, which are widely used around the world, are driven and controlled by firmware.

There is a case that the malfunction of the equipment is caused by the failure of the firmware, in general, when a malfunction occurs, the firmware update is required even in the process of updating the firmware or the hardware of the equipment is upgraded. Updating the firmware of the devices is time consuming and expensive. For example, construction equipment such as excavators, wheel loaders, combos and port lanes, which are deployed in many parts of the world, are mostly located in areas with poor traffic and global communication. In order to update the firmware of construction equipment, the manager had to go to the site and perform the update.

In consideration of the difficulty in the field update, there is a demand for a technology for updating firmware using a communication network. Recently, a technology for updating firmware using a communication network has been introduced, but only a simple firmware update is introduced, but it does not guarantee reliability or stability of the update.

In general, when a sensor used in an industrial site tries to interwork with a network, it is necessary to set the configuration for various sensor types. In other words, there are various sensors such as simple switch-type sensors, wired sensors, wireless sensors, analog sensors, and digital sensors.

Even if the same sensor is changed, 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) and the like that cannot be simply digitized, and cannot arbitrarily change the equipment related to the sensor or change settings (hardware and software) in the industrial field. In accordance with the information change of the sensor described above, it takes a lot of time and money to change the environmental information of the network.

Therefore, there is a need for a kind of adapter technology capable of integrating and managing information related to sensors, 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 linked with various sensors, convert sensing data received from each of the various sensors according to different protocols, and correspond to each of the various sensors. It is an object of the present invention to provide a method and system for updating a sensor protocol that can communicate with each of a variety of sensors by reading a protocol from an external device in profile form and loading it into internal memory without a separate program for updating the data. have.

According to an aspect of the present embodiment, a plurality of sensors for generating and transmitting the sensing data sensing the surrounding environment; USA interworking with each of the plurality of sensors using a plurality of interfaces provided, converting the sensing data received from the plurality of interfaces based on a plurality of pre-stored protocols and transmitting them to the outside (USA) 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 are communication protocols, and controlling the USA based on a verification result; And a local server transmitting 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, the step of generating and transmitting the sensing data of the sensing environment in the plurality of sensors; Receiving the sensing data in association with each of the plurality of sensors using a plurality of interfaces provided in the USA; Converting the sensing data in the USA based on a plurality of stored protocols and transmitting the converted data to the outside; Confirming whether a plurality of the protocols stored in the USA are communicated with the USA based on a network at a host server; It provides a sensor protocol update method comprising the step of controlling the USA on the basis of the verification result 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 linked with various sensors. The sensing data received from each of the various sensors is converted according to different protocols, There is an effect that can communicate with each of the various sensors by reading the protocol in the form of a profile (profile) from the external device and loading it into the internal memory without a separate program for updating the protocol corresponding to each of the various sensors.

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

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

1 is a block diagram schematically illustrating a sensor protocol update system according to an exemplary embodiment.

The sensor protocol update system according to the present embodiment includes the sensors 101, 102, 103, 104, 105, and 106, a universal sensor adapter (USA) 110-1, 110-2, and 110 -N, a local server 120, and a network 130. ), And a 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 through wired or wireless. The sensors 101, 102, 103, 104, 105, and 106 are a first sensor 101, a second sensor 102, a third sensor 103, and a fourth sensor that sense various field conditions used in an industrial site. 104, a fifth sensor 105, and a sixth sensor 106. The sensors 101, 102, 103, 104, 105, and 106 transmit sensing data that senses various field conditions to the USA 110-1, 110-2, and 110 -N.

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

The USA 110-1, 110-2, and 110 -N are universal sensor adapters and convert interoperability based on the sensors 101, 102, 103, 104, 105, and 106 and the network 130. The USA 110-1, 110-2, and 110 -N may convert various sensing information received from the sensors 101, 102, 103, 104, 105, and 106 and simultaneously transmit them to the outside. USA 110-1, 110-2, and 110-N primarily process sensor information, which formats (eg, digitizes) unstructured data (eg, images).

USA 110-1, 110-2, and 110-N platform software and hardware to support various protocols. USA 110-1, 110-2, 110 -N can freely update sensor protocols over network 130 (eg, the Internet). For example, the USA 110-1, 110-2, and 110-N can interoperate with TCP / IP organically if the hardware platform is universally implemented using TCP / IP, and update the protocol wirelessly. It is possible.

USA 110-1 may also communicate with other USA 110-2 and 110 -N. When an industrial worker at a remote site changes the order of Sensor A, Sensor B, and Sensor C or adds a new sensor D, the industrial agent visits the site in person and registers a protocol for the new sensor D, and the host server 140 Also directly upload the protocol for the sensor D in the USA, since the USA (110-1, 110-2, 110-N), the host server 140 read the protocol from the local server 120 at every boot The protocol is updated even if sensor D is added.

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

The USA 110-1, 110-2, 110 -N is one local server platform of the 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, and 110-N includes a communication handler, a message generator, and a self organizer. USA (110-1, 110-2, 110-N) provides a communication interface to communicate by wire or wireless using a communication handler. The USA 110-1, 110-2, and 110 -N parses and converts messages transmitted and received using the message generator. USA (110-1, 110-2, 110-N) uses a self-organizer to communicate over Wi-Fi, and when the Senho Century weakens, it changes to a blue pitcher.

The USA 110-1, 110-2, 110 -N may interface with various sensors 101, 102, 103, 104, 105, 106. USA (110-1, 110-2, 110-N) refers to the adapter for integrating the legacy (legacy) interface and non-legacy interface into one and internally converted to each different protocol to transmit to the outside.

USA 110-1, 110-2 and 110-N automatically update protocol table 212a. The USA 110-1, 110-2, and 110 -N do not need a separate program for updating the protocol table 212a, and can update the protocol only with a profile stored in the local server 120. have.

When the USA 110-1, 110-2, or 110 -N communicates with another USA, when a profile of a specific USA of a plurality of USAs is changed, the other USA devices boot to receive the profile.

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

USA (110-1, 110-2, 110-N) is given a new sensor code (for example, sensor code Xi) from the new sensor 107 when the new sensor 107 is connected. USA (110-1, 110-2, 110-N) checks whether a new sensor code (for example, sensor code Xi) is already registered in the protocol table 212a. The USA 110-1, 110-2, and 110 -N checks the new sensor code (eg, sensor code Xi) to the host server 140 when a new sensor code (eg, sensor code Xi) is not registered. Send a protocol request signal corresponding to the.

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

The local server 120 stores a protocol corresponding to each sensor 101, 102, 103, 104, 105, 106. The protocol stored in the local server 120 is stored in one document form. The local server 120 refers to an embedded web server.

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

The local server 120 changes the profile by combining the interfaces matched with the respective sensors 101, 102, 103, 104, 105, 106 and USA 110-1, 110-2, 110-N. The local server 120 sets a reboot path between USA 110-1, 110-2, and 110 -N in advance. In other words, industrial sites use a linear network in which data is transmitted and received 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 the pre-stored protocol in association 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, 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 capable of searching (extracting), deleting, editing, and adding data.

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 identifying 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 an open network such as a local area network (LAN), a wide area network (WAN), an open network such as the Internet, but also code division multiple access (CDMA) and wide code division multiple access (WCDMA). ), Global System for Mobile Communications (GSM), Long Term Evolution (LTE), Evolved Packet Core (EPC), 5G, and the like, as well as next-generation networks and cloud computing networks.

The host server 140 includes the same hardware module as a web server or a network server which is conventionally hardware. The host server 140 refers to a computer system or a computer software (web server program) that derives and provides a work result corresponding to a work execution request of a client or another web server.

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

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

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

In general, when replacing the sensor installed in the industrial site, first power off the equipment interlocking with the sensor. The facility (eg, USA) then references the local server 120 each time it boots. The protocol is constantly updated on the local server 120, and the host server 140 has hundreds of USAs 110-1, 110-2, and 110-N, without having to control all of the hundreds of USAs. 140), all USA protocols can be changed at once.

When the host server 140 or the USA 110-1, 110-2, 110 -N refers to the local server 120, the signal can be updated without disconnecting the signal and without twisting the protocol during the update process.

In the host server 140, the sensor information communicating with the device of a specific USA 110-1, 110-2, 110 -N, and a specific sensor is communicated among the plurality of USA 110-1, 110-2, 110 -N. To receive it, the local server 120 must be referenced for communication. When the host server 140 boots, the local server 120 is read and read into the server memory 314.

The host server 140 stores the protocol information in the host DB 142, but does not use the information stored in the host DB 142 first, and at the time of booting, the host server 140 first reads from the local server 120 to store the server memory 314. ) And communicate with 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. That is, in a general server, the protocol is fixed and used. When communicating by fixing a protocol in a general server, the new sensor or hardware is less interoperable, but the host server 140 according to the present embodiment is not free to utilize the protocol.

The host server 140 updates the protocol from the local server 120 to the server memory 314, which is internal memory, using the UI to update the protocol.

The host server 140 interworks with USA 110-1, 110-2, and 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, and 110 -N are communicable protocols, and based on the confirmation result, the host server 140 checks 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, and 110 -N, the host server 140 searches for the host DB 142 and a protocol corresponding to a new sensor code (eg, sensor code Xi). (E.g., protocol Yi) is checked. The host server 140 checks a new sensor code (eg, sensor code Xi) from the host DB 142 when a check result indicates that a protocol (eg, protocol Yi) corresponding to the new sensor code (eg, sensor code Xi) exists. The protocol corresponding to the protocol (for example, protocol Yi) is read into the server memory 314 and transmitted to the USA 110-1, 110-2, 110-N as a protocol response signal corresponding to the protocol request signal.

The host server 140 corresponds to a new sensor code (eg, sensor code Xi) from the local server 120 when there is no protocol (eg, protocol Yi) corresponding to the new sensor code (eg, sensor code Xi). A protocol (eg, protocol Yi) is received, read into the server memory 314, and then transmitted to the USA 110-1, 110-2, and 110 -N as a protocol response signal corresponding to the protocol request signal.

When the host server 140 receives the 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, and 110 -N to determine whether an update required protocol exists among protocols stored in the USA 110-1, 110-2, and 110 -N. Check it. The host server 140 transmits the update protocol to the USA 110-1, 110-2, 110-N, if there is an update-required protocol as a result of the check, and the USA 110-1, 110-2, 110-. The protocol stored in the protocol table 212a of N) is updated.

Each time the USA 110-1, 110-2, 110 -N and the host server 140 reboot or periodically read the profile from the local server 120 to update the profile.

When the host server 140 and the USA 110-1, 110-2, and 110-N recognize that the profile has been updated at boot time, the host server 140 checks the communication target by importing the profile from the local server 120 into the internal memory. Communicate with the communication target.

The host server 140 and the USA 110-1, 110-2, and 110 -N continue to copy and move the profile from the local server 120 to create 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 the USA 110-1, 110-2, and 110-N change configuration information by using profile information.

USA (110-1, 110-2, 110-N) and the host server 140 is connected to the local server 120 first without first checking the protocol stored internally at each preset cycle or boot and then local The protocol stored in the server 120 is read and loaded into the internal memory, and the protocol is newly updated each time.

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

When the USA 110-1 communicates with another USA 110-2, 110 -N, the USA (eg, 110-2) of any one of the plurality of USA 110-1, 110-2, 110 -N. If the protocol stored in the) is changed, the rest of the USA (110-1, 110-N) is updated to read the profile stored in the local server 120 and load into the internal memory at a predetermined period or boot.

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

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

Each component included in the USA 110-1, 110-2, and 110 -N may be connected to a communication path connecting a software module or a hardware module inside the device to operate organically with each other. These components communicate using one or more communication buses or signal lines.

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

Each component included in the USA 110-1, 110-2, and 110 -N is connected to a data bus.

The sensor interface unit 202 provides 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 each of the plurality of sensors 101, 102, 103, 104, 105, and 106. The sensor interface unit 202 receives specific sensing data from a specific interface among the plurality of interfaces 216, 217, 218, and 219.

The adapter control unit 211 is a control means for controlling the overall functions of the USA (110-1, 110-2, 110-N), each component included in the USA (110-1, 110-2, 110-N) To control. The adapter controller 211 may be configured to include a microprocessor. The adapter controller 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 controller 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 controller 211 outputs the sensor signal acquired from the connected sensor to the local network with the communication interface 204 interposed therebetween.

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

The adapter controller 211 acquires a new sensor protocol corresponding to the new sensor with the communication interface in the local network and registers the new sensor protocol in the adapter memory 212.

The adapter controller 211 searches for the updated sensor protocol on the local network during the sensor protocol update process, and acquires the updated sensor protocol from the local network when the updated sensor protocol exists on the local network.

The adapter control unit 211 executes sensor protocol update processing at boot time. The adapter control unit 211 executes sensor protocol update processing according to the set update schedule.

When the sensor code for 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 by the search. Obtained from the local network as a protocol.

The adapter memory 212 stores a protocol table 212a as a storage means for storing various data required for driving the USA. The adapter memory 212 stores a plurality of protocols for communicating with each of the plurality of sensors 101, 102, 103, 104, 105, 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 portion 214 and a wireless portion 215. The communication interface unit 204 transmits the sensing data to the external device via wired or wireless under the control of the adapter controller 211.

FIG. 3 is a diagram for describing an operation when a pre-registered protocol is updated in the local server 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.

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

① The local server 120 receives a protocol update signal from the outside. The local server 120 updates a protocol requiring updating among the protocols previously registered in the local DB 122 based on the protocol update signal. The local server 120 divides the updated protocol among the registered protocols into the 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, and 110-N to check whether an update required protocol exists.

If there is an update required protocol in the adapter memory 212 in the USA 110-1, 110-2, and 110 -N, the local control unit 312 of the local server 120 sends the update protocol to the USA 110-1. , 110-2, 110-N).

④ The adapter control unit 211 of the USA (110-1, 110-2, 110-N) updates the pre-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 for storing and updating the protocol of each sensor node that communicates in the protocol table (212a).

Each sensor node communicates with the USA 110-1, 110-2, 110-N at every boot and references the protocol table 212a in the USA 110-1, 110-2, 110-N. Most communication protocols remain unchanged stored at each sensor node. The sensor node according to the present embodiment is configured to convert the local DB 122 in the local server 120 into the protocol table 212a at every boot (and at regular intervals). Call it and perform communication with reference.

USA (110-1, 110-2, 110-N) obtains 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 that is set up on a common local network with USA 110-1, 110-2, 110-N and stores a protocol in which a plurality of types of sensor protocols are registered.

USA (110-1, 110-2, 110-N) refers to the local DB 122 at the time of booting, if there is an update sensor protocol in the local DB 122, obtains the update sensor protocol from the local server 140 do.

USA (110-1, 110-2, 110-N) refers to the local DB 122 according to the set update schedule, if there is an update sensor protocol in the local DB 122, the update sensor in the local server 120 Get the protocol.

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

As shown in FIG. 4, the USA 110-1, 110-2, 110 -N downloads a protocol corresponding to the new sensor 107 from the local server 120 when the new sensor 107 connects. do.

The operations of the USA 110-1, 110-2, and 110 -N downloading the protocol from the local server 120 are as follows.

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

② The adapter control unit 211 in the USA (110-1, 110-2, 110-N) searches the protocol table 212a (sensor code, protocol) of the adapter memory 212, 'Sensor code Xi' is pre-registered Check if it is.

③ If 'sensor code Xi' is not pre-registered in the table in the protocol table 212a, the adapter control unit 211 in the USA 110-1, 110-2, 110-N returns to the local server 120. The protocol request signal corresponding to the sensor code Xi 'is transmitted.

④ The local controller 312 in the local server 120 searches for the host DB 142 and reads a 'protocol Yi' corresponding to 'sensor code Xi'. The local controller 312 in the local server 120 transmits "protocol Yi" to the USA 110-1, 110-2, and 110-N as a protocol response signal corresponding to the protocol request signal.

⑤ The adapter control unit 211 in the USA 110-1, 110-2, and 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, adapter adapter 212 It registers in the protocol table 212a.

USA (110-1, 110-2, 110-N) obtains 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 that is set on a common local network with the USA 110-1, 110-2, 110-N, and stores a protocol in which a plurality of types of sensor protocols are registered.

The USA 110-1, 110-2, and 110-N refer to the local DB 122 when the sensor code for specifying a new sensor is set, and converts the sensor protocol related to the sensor code into the new sensor protocol as the local server 120. Obtain from

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

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

The operation of updating the protocol registered in the host DB 142 by the host server 140 is as follows.

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 divides the updated protocol among the registered protocols into an update protocol.

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

③ When there is an update required protocol in the local memory 314 in the local server 120, the host controller 512 of the host server 140 transmits the update protocol to the local server 120.

④ The local controller 312 of the local server 120 updates a pre-stored protocol based on the update protocol received from the host server 140.

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

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

The operation of downloading the protocol from the host server 140 by the local server 120 is as follows.

① When the new sensor 107 is connected, the local server 120 receives a 'sensor code Xi' from the new sensor 107.

② The local controller 312 in the local server 120 searches the local DB 122 (sensor code, protocol) of the local memory 314 to check whether the 'sensor code Xi' is pre-registered.

③ If 'sensor code Xi' is not registered in the table in the local DB 122, the local controller 312 in the local server 120 requests a protocol corresponding to 'sensor code Xi' to the host server 140. Send a signal.

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

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 controller 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 set in the network 130 and registered with a plurality of types of sensor protocols.

When the update sensor protocol exists in the host DB 142 with reference to the host DB 142 at a predetermined timing, the local server 140 obtains the update 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 obtains from the host server 140 a sensor protocol that is not registered in the local DB 122.

7 is a diagram for explaining 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 a local server 120 or in a form including only a local DB 122.

The USA 110A including the local DB 122 performs free communication with a plurality of different USA 110-1 and 110-2. USA 110A has a structure for storing and updating the protocol of each sensor node communicating with 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) of the plurality of USA (110-1, 110-2, 110-N) is a local server Operation 140.

A plurality of different USA 110-1 and 110-2 communicates with the USA 110A at every boot and references the local DB 122 in the USA 110A. A plurality of different USA 110-1 and 110-2 loads the local DB 122 in the local server 120 into the internal protocol table 212a at each boot (and at regular time intervals), and then references them. Perform communication.

The USA 110A and a plurality of USA 110-1 and 110-2 that are different from each other can communicate with a LAN within the same industrial site.

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

The local server 120 including the local DB 122 and the plurality of USA 110-1 and 110-2 may communicate with each other through a local area network.

As shown in FIG. 8, one of the plurality of USA 110-1 and 110-2 USA 110-2 may communicate with a USA 110B having a lower concept. The USA 110-2 of any one of the plurality of USA 110-1 and 110-2 performs free communication.

The USA 110-1, 110-2, and 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 general purpose sensor adapter, interworking with the sensors 101, 102, 103, 104. The USA 110B may convert various sensing information received from the sensors 101, 102, 103, and 104 and simultaneously transmit them to the USA 110-2. USA 110B primarily processes sensor information, which formats the unstructured data.

The USA 110B also communicates by referencing the local DB 122 in the local server 120 into the internal protocol table 212a at every boot (and at certain time intervals).

The above description is merely illustrative of the technical idea of the present embodiment, and those skilled in the art to which the present embodiment belongs may make various modifications and changes without departing from the essential characteristics of the present embodiment. Therefore, the present embodiments are not intended to limit the technical idea of the present embodiment but to describe the present invention, and the scope of the technical idea of the present embodiment is not limited by these embodiments. The scope of protection of the present 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: sensors
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 unit
312: local control unit 314: local memory
512: host control unit 514: host memory

Claims (14)

A plurality of sensors for generating and transmitting sensing data sensing the surrounding environment;
USA interworking with each of the plurality of sensors using a plurality of interfaces provided, converting the sensing data received from the plurality of interfaces based on a plurality of pre-stored protocols and transmitting them to the outside (USA) 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 are communication protocols, and controlling the USA based on a verification result; And
Local server for transmitting the protocol for the sensor to the USA and the host server in the form of a profile
Sensor protocol update system comprising a. The method of claim 1,
The USA and the host server,
Each time a boot or a predetermined cycle is executed, the protocol is stored in the form of a first connection to the local server without first checking the protocol stored therein, and then loaded into the internal memory by reading the protocol stored in the local server. Sensor protocol update system. The method of claim 2,
The USA and the host server,
Receiving a protocol stored in the local server in the form of a profile and load it into the internal memory, the sensor protocol update system, characterized in that for 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, when a protocol stored in any one of a plurality of USAs is changed, the remaining USAs read a profile stored in the local server and load it into internal memory at a predetermined cycle or boot. Sensor protocol update system, characterized in that for updating the protocol. The method of claim 1,
The USA,
A sensor interface unit having a plurality of interfaces for interworking with each of the plurality of sensors, for receiving specific sensing data from a specific interface among the plurality of interfaces;
An adapter memory for storing a plurality of protocols for communicating with each of the plurality of sensors in the form of a protocol table;
An adapter controller which extracts a specific protocol corresponding to the specific sensing data from the protocol table and converts the specific sensing data to be transmitted to the outside based on the specific protocol; And
Communication interface unit for transmitting the sensing data to the external device over the wired or wireless under the control of the adapter controller
Sensor protocol update system comprising a. The method of claim 5,
The USA,
A connector connected to another USA and receiving data from the other USA;
An output unit for 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,
When a new sensor is connected, a new sensor code is given from the new sensor, and it is checked whether or not the new sensor code is already registered in the protocol table. Sensor protocol update system, characterized in that for transmitting a protocol request signal corresponding to the new sensor code to the host server. The method of claim 7, wherein
The host server,
When receiving a protocol request signal from the USA, the host DB is searched to determine whether a protocol corresponding to the new sensor code exists, and if the protocol corresponding to the new sensor code exists, the host is checked. And a protocol corresponding to the new sensor code from a DB is read into a server memory and transmitted to the USA as a protocol response signal corresponding to the protocol request signal. The method of claim 8,
The host server,
If a 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 the protocol response signal corresponding to the protocol request signal is sent to the USA. Sensor protocol update system, characterized in that for transmitting. The method of claim 8,
The USA,
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 the protocol response signal in a protocol table. The method of claim 1,
The host server,
When receiving a protocol update signal from the local server, based on the protocol update signal, the sensor protocol update system, characterized in that for updating the protocol that needs to be updated among the protocols already registered in the host DB. The method of claim 11,
The host server,
Communicate with the USA to confirm whether an update required protocol exists among the protocols stored in the USA, and if it is found that an update required protocol exists, the update protocol is transmitted to the USA, and is transmitted to the protocol table of the USA. Sensor protocol update system, characterized in that the stored protocol is updated. The method of claim 1,
The local server
Sensor protocol update system, characterized in that for continuously updating the stored protocols in conjunction with the sensor manufacturer server. Generating and transmitting sensing data of sensing a surrounding environment by a plurality of sensors;
Receiving the sensing data in association with each of the plurality of sensors using a plurality of interfaces provided in the USA;
Converting the sensing data in the USA based on a plurality of stored protocols and transmitting the converted data to the outside;
Confirming whether a plurality of the protocols stored in the USA are communicated with the USA based on a network at a host server; And
Controlling the USA based on a result of the check at the host server;
Sensor protocol update method comprising a.

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