KR20180137250A - smart streetlight system and control method using broadcasting contract in closed distributed database environment - Google Patents

Abstract

According to the present invention, a smart streetlight system of a contract reference method using broadcasting in a private distributed database network environment comprises a manager terminal and a plurality of streetlight devices. The manager terminal generates a contract transaction depending on a request of a manager and broadcasts the contract transaction. The plurality of streetlight devices receive the contract transaction from the manager terminal and control a lighting device by using controlling information and state information depending on the contract transaction. The manager terminal and the plurality of streetlight devices are connected to a private distributed database network. When the contract transaction is provided, the contract transaction and partial information of a previous block are processed as a block and broadcasted, and approval is requested to the plurality of streetlight devices. When approval information is provided from the predetermined number of streetlight devices depending on a request, data synchronization is performed by recording the block in block chain information. When the block is provided from the outside, validity is determined by comparing partial information of a recorded previous block with the partial information of the previous block included in the provided block. When the block is valid, approval information is provided and approval is requested to the plurality of streetlight devices. When the approval information is provided from the predetermined number or more of streetlight devices depending on the request, the data synchronization is performed by recording the block in the block chain information. The present invention can improve stability of the system.

Description

Technical Field [0001] The present invention relates to a smart streetlight system and a control method using a contract reference method using broadcast in a private distributed database network environment.

The present invention relates to a streetlight control technology, and more particularly, to a private distributed database network in which a streetlight device and an administrator terminal participate as nodes to constitute a smart streetlight system, and each of the nodes performs a contract transaction for streetlight control Blocks to be recorded and shared as block chain information so that the street lamp devices can be independently driven according to the contract transaction even without centralized control by a centralized server or the like by using broadcasting in a distributed distributed database network environment The present invention relates to a smart streetlight control system and a control method using a contract reference method.

In general, the streetlight controller that controls the streetlight starts from a photoelectric type that is turned off by the surrounding light quantity, and is controlled by a timer that is simply turned off by the microcomputer, and a unidirectional control using VHF. Today, A bidirectional surveillance controller has emerged.

In such a streetlight supervisory controller, the conventional bidirectional supervisory controller bidirectionally monitors the state of the streetlight using power line communication (PLC) to judge whether there is an abnormality such as a stabilizer or a lamp of the streetlight, I controlled the whole.

And a system for loading various information transmitted to the streetlight surveillance controller through a power line communication from a local street light to a street light control server using a public network by mounting a public telecommunication module such as CDMA on the street light surveillance controller for each region.

However, in the above conventional technology, the state of each streetlight is grasped through a power line supplying power to the street light without installing a separate communication module in the street light. However, if the power line is disconnected due to aging of the power line or external influences, There is a problem that it is difficult to confirm the information of the streetlights continuously connected from the starting point.

In addition, in order to transmit a signal from each streetlamp monitoring controller to the streetlamp control server according to the related art, it is necessary to mount a landlord communication module in each streetlamp monitoring controller.

To solve these problems, various technologies have been proposed. One of them is Patent No. 10-0813132 registered in the Korean Intellectual Property Office. The registered patent includes a line monitoring controller for monitoring or controlling various kinds of situation information of the corresponding street lamp by mounting a ZigBee module; A streetlight surveillance controller installed with a ZigBee module and receiving various kinds of information of each streetlight by the Zigbee communication with the streetlight monitoring controller; A gateway for receiving data of the streetlight monitoring controller through a Zigbee communication with a ZigBee module and a public air communication module and transmitting the data to the outside in real time or in non-real time using a public air communication module; And a streetlight control server for receiving the data of the gateway through the airwave communication and providing the data to each user and transmitting a control command to the specific streetlight monitoring controller when necessary, wherein the data transmitted from the streetlight surveillance controller to the gateway MAX_DELAY_TIME indicating the maximum delay transmission time of the corresponding packet, TIMESTAMP indicating the actual time of the corresponding data transmitted from the streetlight monitoring controller, and PAYLOAD containing the streetlight monitoring data And a control unit for controlling the control unit.

Thus, in the related art, a plurality of street lamps are controlled through a single street lamp monitor controller. Therefore, when the street lamp monitor controller is attacked or a fault occurs, even if the street lamp itself operates normally, it is impossible to control the entire plurality of street lamps There was a problem of getting rid of it.

In addition, when the streetlight control server is hit directly, there is a problem that control for all the streetlights connected to the network controlled by the server is disabled.

In the past, in case of a single point of failure in which a node that plays an important role in a network system is not functioning, or in the case where a server is physically directly hit by a node, It has been urgently required to develop a technique that enables stable operation and control of the system.

Korean Patent Registration No. 10-0813132 Korean Patent Publication No. 10-1995-0035524 Korean Patent Publication No. 10-2004-0100481 Korean Patent Publication No. 10-2001-0110064

The present invention relates to a private distributed database network in which a streetlight device and an administrator terminal participate as nodes to constitute a smart streetlight system, and each of the nodes processes a contract transaction for streetlight control into blocks, A smart streetlight control system and a control method of a contract reference method using broadcasting in a private distributed database network environment in which the streetlight devices can be independently driven according to the contract transaction even without centralized control by a centralized server or the like And the like.

It is a further object of the present invention to provide a method and system for securing the integrity of a smart streetlight system in a private distributed database network environment, as well as ensuring the integrity of the contract transaction by requesting approval of a majority of the nodes of the block chain information for contract transactions The present invention provides a smart streetlight control system and a control method using a contract reference method using broadcasting in a private distributed database network environment.

It is a further object of the present invention to provide a method for monitoring and controlling a specific node by a participating administrator terminal as a node of a private distributed database network and a configuration of a private distributed database network A smart streetlight control system using a contract reference method using a broadcasting in a private distributed database network environment that can provide centralized management even in a private distributed database network environment and can provide ease of management, Control method.

According to another aspect of the present invention, there is provided a smart streetlight system of contract reference type using broadcasting in a private distributed database network environment, comprising: an administrator terminal for generating and broadcasting a contract transaction at a request of an administrator; And a plurality of streetlight apparatuses that receive contract transactions from the administrator terminal and control the lighting apparatus using control information and state information according to the contract transactions, Type database network, and the plurality of streetlamp apparatuses processes the contract transaction and some information of the previous block, processes the information into blocks, and broadcasts the information to the plurality of streetlamp devices, , And If approval information is provided from a predetermined number of streetlamp devices according to the request, the block is recorded in the block chain information to perform data synchronization. If a block is provided from the outside, And if the block is valid, the approval information is provided, the approval of the plurality of streetlight devices is requested, and the number of the predetermined number or more of the streetlight devices When the approval information is provided, block synchronization is performed by recording the block in the block chain information.

The present invention relates to a private distributed database network in which a streetlight device and an administrator terminal participate as nodes to constitute a smart streetlight system, and each of the nodes processes a contract transaction for streetlight control into blocks, Thereby causing the effect that the streetlight devices can be driven independently in accordance with the contract transaction even if there is no central control by a centralized server or the like.

In particular, the present invention requires the approval of more than half of the nodes to record block chain information for the contract transaction, thereby ensuring the integrity of the contract transaction, as well as enhancing the stability of the smart street lamp system in a private distributed database network environment It causes the effect.

In addition, the present invention enables a configuration of a private distributed database network such as participation in a new node as well as monitoring by an administrator terminal participating as a node of a private distributed database network and selective control for a specific node , Centralized management is possible even in a non-public distributed database network environment, and it is possible to provide ease of management.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a smart streetlight control system of contract reference method using broadcasting in a private distributed database network environment according to a preferred embodiment of the present invention; FIG.
FIG. 2 is a detailed block diagram of the streetlight device and the manager terminal of FIG. 1. FIG.
3 is a diagram illustrating a process of encrypting and authenticating data according to a preferred embodiment of the present invention.
4 is a structural view of a block according to a preferred embodiment of the present invention.
FIG. 5 is a block diagram of a smart streetlight control method of contract reference method using broadcasting in a private distributed database network environment according to a preferred embodiment of the present invention. FIG.
FIG. 6 to FIG. 11 are flowcharts of a smart streetlight control method of contract reference method using broadcasting in a private distributed database network environment according to a preferred embodiment of the present invention. FIG.

The present invention relates to a private distributed database network in which a streetlight device and an administrator terminal participate as nodes to constitute a smart streetlight system, and each of the nodes processes a contract transaction for streetlight control into blocks, Thereby causing the effect that the streetlight devices can be driven independently in accordance with the contract transaction even if there is no central control by a centralized server or the like.

In particular, the present invention requires the approval of more than half of the nodes to record block chain information for the contract transaction, thereby ensuring the integrity of the contract transaction, as well as enhancing the stability of the smart street lamp system in a private distributed database network environment It causes the effect.

In addition, the present invention enables a configuration of a private distributed database network such as participation in a new node as well as monitoring by an administrator terminal participating as a node of a private distributed database network and selective control for a specific node , Centralized management is possible even in a non-public distributed database network environment, and it is possible to provide ease of management.

<Configuration of Smart Streetlight System>

A configuration of a smart streetlight system of a contract reference method using broadcasting in a private distributed database network environment according to a preferred embodiment of the present invention will be described with reference to FIG.

In the smart streetlight system, the first to N th street lamps 1001 to 100N and the administrator terminal 200 are connected to a private distributed database network, and operate as one node. The first to Nth street lamps 1001 to 100N and the nodes that are the administrator terminal 200 perform communication by broadcasting and transmitting various transactions for smart street lamp control of the present invention.

The administrator terminal 200 provides a first block for joining a new node to a private distributed database network at the request of an administrator or performs a network configuration process for refusing participation of the new node.

In addition, the manager terminal 200 generates and broadcasts a first contract transaction for selective control of one or more of the first to N th street lamps 1001 to 100N according to a request from an administrator.

Also, the manager terminal 200 generates and broadcasts a second contract transaction for controlling the first to N th street lamps 1001 to 100N according to a request of the manager, and transmits the second contract transaction.

Also, the manager terminal 200 receives response information for the first and second contract transactions from the corresponding streetlight device, records and stores the response information.

Each of the first through N th street lamps 1001 through 100N is provided with a first block for new participation from the administrator terminal 200 when it intends to newly participate in the private DB network, The other nodes receive the remaining blocks of the contract transaction to form condition information, and control the lighting device according to the condition information. In this way, the administrator can newly participate in a private distributed database network through the manager terminal 200.

In addition, the first to Nth street lamps 1001 to 100N convert and record the blocks of the first or second contract transaction for the streetlight control into chained blocks, so that even if there is no central control by the centralized server Thereby enabling the streetlight devices to independently operate in accordance with the contract transaction. In particular, since the recording of the contract transaction is performed after the approval of a majority of the nodes is obtained, the reliability of the smart streetlight system of the private distributed database network environment is improved, as well as ensuring the integrity of the contract transaction.

Each of the first to N th street lamps 1001 to 100N constitutes condition information according to the second contract transaction when a first contract transaction for selective control is provided from the manager terminal 200, And generates response information therefrom, and returns the response information to the administrator terminal 200. In this way, the administrator can selectively control the streetlight device through the manager terminal 200. Here, the first contract transaction is for selective control, and the manager terminal 100 generates a first contract transaction using the public key and the control information for the streetlight device as a selection control object. The control information may be configured as a reference address of contract information in which drive condition information for directly inputting on / off of the streetlight device or turning on / off the streetlight device under a predetermined illumination condition is recorded, 1 to N-th street lamps 1001 to 100N. The response information may include illuminance information or streetlight driving status information.

 Each of the first to N th street lamps 1001 to 100N may be configured to construct condition information according to the second contract transaction when the second contract transaction is provided from the administrator terminal 200, Control the device. Thus, the manager can perform control over the entire streetlight device through the manager terminal 200. [ Here, the second contract transaction is for overall control, and the manager terminal 100 generates a second contract transaction using the public key and control information for the entire streetlight device. The control information may include a reference address of contract information in which drive condition information for turning on / off the streetlight device under a predetermined illumination condition is recorded. The contract information is previously recorded in the first to Nth street lamps 1001 to 100N.

<Configuration of Streetlight Device>

Since each of the first to N th street lamps 1001 to 100N according to the preferred embodiment of the present invention has the same configuration and operation, only the structure of the first street lamp device 1001 is referred to Explain.

The first streetlight device 1001 includes a communication module 102, a control device 104, a lighting device 106, a sensor device 108, and a storage device 110.

The communication module 102 is responsible for communication between the control device 104 and other nodes via the private distributed database network.

The control device 104 controls the respective parts of the first lamp unit 1001 as a whole.

In particular, when the control device 104 newly participates in a private distributed database network, the control device 104 transmits, to the nodes connected to the private distributed database network using the first block of block chain information previously provided from the administrator terminal 200, Requesting the chain information, and storing the block chain information in the storage device 110 when the block chain information is provided. The block chain information is obtained by processing the first and second contract transactions.

After being connected to the private distributed database network, the control device 104 checks whether the contract transaction is a first contract transaction signed with a private key of a particular node if a contract transaction is provided from the outside, Determining if the first contract transaction is signed with its own private key and if the first contract transaction is signed with its own public key, determining that the first contract transaction is for selective control over the first contract transaction; The condition information is configured in accordance with the control information recorded in the contract information reference address, and the condition information is generated in accordance with the contract information, the lighting device 106 is driven in accordance with the condition information, and the status information obtained through the sensor device 108 is returned Information is transmitted to the private distributed database network as information and transmitted, Return to the end (200).

After being connected to the private distributed database network, the control device 104 checks whether the contract transaction is a second contract transaction signed with a public key if an agreement transaction is provided from the outside, and when the contract transaction is provided, If it is determined that the second contract transaction is signed with the public key, it is determined that the second contract transaction is for control of the entire streetlamp apparatus, and the condition information is configured according to the control information recorded in the second contract transaction, And drives the lighting device 106 in accordance with the condition information.

When a block chain information request including the first block is generated from the outside, the control unit 104 verifies whether the first block is identical to the first block of the block chain information stored therein, and if the verification is successful And transmits the block chain information to the node requesting the block chain information.

Also, the control device 104 may be configured such that each time the first or second contract transaction is received, the first or second contract transaction is valid, and from a predetermined number or more of the nodes constituting the private distributed database network If the approval information is provided, the first or second contract transaction is processed into a block and is recorded in the block chain information.

The lighting device 106 emits light under the control of the control device 104 and operates as a light source of the streetlight.

The sensor device 108 senses external illuminance or illuminance of the illuminating device 106, a fault state of the illuminating device 106 or the like under the control of the control device 104, And provides it to the control device 104. [

The storage device 110 stores data required to execute a control program of the control device 104. [ In particular, the storage device 110 is provided with a block chain store for storing block chain information, a contract information store for storing contract information, a public key for storing individual keys assigned to the node, And a network configuration information storage for storing at least a number of nodes constituting the network.

In the contract information store, contract information composed of different streetlight control conditions for each contract information reference address is recorded in advance. This means that the contract transaction does not directly transmit the streetlight control condition, but transmits and receives only the contract information reference address, And reduce the size of the block chain information.

 <Configuration of administrator terminal>

The configuration of the administrator terminal 200 according to the preferred embodiment of the present invention will be described with reference to FIG. 2 (b).

The administrator terminal 200 includes a communication module 202, a control device 204, a storage device 206, and a user interface 208.

The communication module 202 is responsible for communication between the control device 204 and other nodes via the private distributed database network.

The control device 204 performs generation and broadcasting transmission of an initial block for implementing the configuration of the private distributed database network according to a request of the manager through the user interface 208, (1001 SIMILAR 100N), and broadcasts and transmits a first contract transaction for selective control of at least one of the first through Nth street lamps (1001 SIMILAR 100N) And broadcasts it. Also, the first or second contract transaction is generated by signing the reference address of the contract information with a private key or a public key. Here, the first contract transaction is signed with a private key of the selected node, and the second contract transaction is signed with a public key.

Also, the control device 204 records the block chain information in a chain encrypted manner for the first and second contract transactions, and maintains a contract transaction identical with other nodes.

The storage device 206 stores data required for executing the program of the control device 204. [ In particular, the storage device 204 includes a block chain store for storing block chain information, a contract information store for storing contract information, a public key for storing individual keys assigned to the nodes, A node information storage for storing node information such as status information for monitoring each of the nodes, a network configuration information storage for storing the number of nodes constituting the network or the identification information, and the like.

In the contract information store, contract information composed of different streetlight control conditions for each contract information reference address is recorded in advance. This means that the contract transaction does not directly transmit the streetlight control information but transmits only the contract information reference address, And reduce the size of the block chain information.

The user interface 208 provides an interface between the administrator and the control device 204. '

<Contract transaction and block chain>

Nodes participating in a private distributed database network according to the present invention propagate a contract transaction (TX) to other nodes in a broadcast manner.

For the security and integrity of the contract transaction, in the present invention, the sender signs and transmits a transaction, the receiver verifies and verifies the signature of the transaction, and performs the receive processing only when it is proved.

A process for transmitting and receiving such a transaction is illustrated in FIG.

FIG. 3 (a) illustrates the processing of the first contract transaction for selective control. The sender processes the hash function of the data, that is, the reference address of the contract information, encrypts the result using a separate key for selective control, generates signature data, and transmits the signature data and the data The reference address of the contract information) to generate singed data.

The sign data is delivered to the receiving side via a private distributed database network.

The receiver side receives the sign data and separates the sign data into data and signature, processes the data by a hash function, decrypts the signature with a public key, and determines whether the hash function processing result and the decrypted signature are identical And verifies that the contract transaction is a second contract transaction.

If the hash function processing result and the decrypted signature are not the same, decrypts the signature with an individual key assigned to the node, and if the hash function processing result and the decrypted signature are identical, Lt; RTI ID = 0.0 &gt; a &lt; / RTI &gt;

If the hash function processing result and the decrypted signature are the same, it is determined that the contract transaction is the first contract transaction for selective control of the contract transaction, and the control unit performs the streetlight control according to the contract transaction, To the administrator terminal 200 on the receiving side as response information.

If the hash function processing result and the decrypted signature are not the same, the contract transaction is invalidated.

FIG. 3 (b) illustrates the processing of the second contract transaction for overall control. The sender processes the hash function of the data, that is, the reference address of the contract information, encrypts the result using a public key for selective control, generates signature data, and transmits the signature data and the data The reference address of the contract information) to generate singed data.

The sign data is delivered to the receiving side via a private distributed database network.

The receiver side receives the sign data and separates the sign data into data and signature, processes the data by a hash function, decrypts the signature with a public key, and determines whether the hash function processing result and the decrypted signature are identical And verifies that the contract transaction is a second contract transaction.

If the hash function processing result and the decrypted signature are the same, it is determined that the contract transaction is the second contract transaction for controlling all the nodes, and the streetlight control according to the contract transaction is executed, And provides the response information to the administrator terminal 200 on the receiving side.

Nodes participating in a private distributed database network according to a preferred embodiment of the present invention, i.e., first through Nth street lamps 1001 through 100N and an administrator terminal, are the first and second contract transactions, State information, which is the result of the streetlight control according to the transaction, is processed and recorded as block chain information, and the block chain is transmitted and shared among the nodes by broadcasting.

The block chain information is as illustrated in FIG. The block chain information is composed of a plurality of blocks, each block is encrypted and stored by a hash function, and each block has a chain structure by partially recording a hash value of the previous block. That is, each block stores the hash value of the previous block, the proof information of the current block, the block creation time information, the contract information reference address extracted from the contract transaction, the control information recorded in the corresponding contract information reference address, And contract transaction processing information composed of status information which is a result of controlling the transaction transaction processing information. The contract transaction processing information is encrypted through the transmitting node's private key.

<Method of Driving Smart Streetlight Using Agreement-Referencing Method Using Broadcasting in a Private Distributed Database Network Environment>

Now, the operation process of the smart streetlight system according to the contract reference method using broadcasting in a private distributed database network environment configured as described above will be described with reference to the drawings.

As shown in FIG. 5, the function of the smart streetlight system using the contract reference method using broadcasting in the private distributed database network environment includes a network configuration process 300, a block generation and propagation process 400, (500).

<New node participation process>

FIG. 6 illustrates a process of joining a new node to a private distributed database network according to a preferred embodiment of the present invention. The network configuration process will be described with reference to FIG.

The new node provides the network participation request message to the administrator terminal 200 when it wishes to participate in the private distributed database network according to the preferred embodiment of the present invention (302, 304).

When receiving the network participation request message, the manager terminal 200 notifies the manager of the network participation request message and requests reliability determination. If it is determined that the node is a trusted node, the manager terminal 200 transmits the first block of the block chain information and the network configuration information stored in the block chain store to the node (steps 306 to 312). The network configuration information includes at least the total number of nodes participating in the network, and the like.

In step 314, the new node generates a data synchronization request message including the first block, broadcasts the message to neighboring nodes, and transmits the message. The neighboring nodes provided with the first block check whether the first block is identical to the first block of the block chain information stored therein, and authenticate. If the first block is identical to the first block of the block chain information stored by itself, In step 316, data is synchronized by broadcasting blocks of the stored block chain information and transmitting the blocks to the new node.

The new node receiving the blocks of the block chain information requests approval from a predetermined number, for example, a majority of nodes, of the nodes participating in the network for each block, and when the approval is made, Block chain information is constructed and recorded to perform data synchronization (Step 318).

The network participation process of the new node is thus completed (step 320).

<Block Generation and Propagation Process>

FIG. 7 illustrates a process in which nodes participating in a private distributed database network generate or propagate a block according to a preferred embodiment of the present invention.

Referring to FIG. 7, when each of the nodes participating in the private distributed database network receives a block (step 402), a part of the hash value of the last block of the previously stored block chain information is transferred to the previous block The validity of the block is judged through whether or not it is the same as a part of the hash value of the block. If the block is a valid block, it broadcasts approval information for the block and provides it to other nodes participating in a private distributed database network.

In this case, when the approval information for the corresponding block is received from a majority of the nodes for a predetermined period of time, the block is combined with its own block chain information and recorded to perform data synchronization (steps 418 and 420).

If approval information for the corresponding block is not received from the nodes having more than a half of the predetermined time in step 418, the approval of the corresponding block is rejected and the corresponding block is invalidated in operation 410.

When a predetermined block broadcasting cycle arrives in a state in which no block reception has occurred, the node generates a block by processing the contract transaction and streetlight status information received and processed by the node and a part of the hash value of the previous block , And broadcasts the generated block (step 416).

After the broadcasting, the node combines the block with its own block chain information and records it in step 418 and 420 when the approval information for the corresponding block is received from a majority of the nodes for a predetermined period of time.

Otherwise, if the approval information for the corresponding block is not received from a majority of the nodes during the predetermined time (step 418), the corresponding block is invalidated (step 410).

&Lt; Streetlight device control process >

8 and 9 illustrate a process for controlling a streetlight device in a private distributed database network environment according to a preferred embodiment of the present invention.

Referring to FIG. 8, the administrator terminal 200 performs optional control and overall control processes for the streetlight device at the request of the administrator.

When the manager requests control of the selective streetlight device (step 502), the manager terminal 200 receives the streetlight device selected by the manager and the contract information address information in which the control information is recorded, and transmits the contract information address information to the selected streetlight Generates a first contract transaction by signing with the individual key of the apparatus, broadcasts the first contract transaction to the first to N th lamp units 1001 to 100N, and transmits the first contract transaction.

When the first contract transaction is received and the first contract transaction is valid and transmitted to the first contract transaction, the first through Nth street lamps 1001 through 100N respectively store the contract information address information according to the first contract transaction And reads the recorded streetlight control information to generate a control information processing event. The control information processing event is performed according to the event processing procedure shown in FIG. 9, and the streetlight control is performed.

Unlike the above, when the manager requests control of the entire streetlamp (step 510), the manager terminal 200 receives the contract information address information in which the control information selected by the administrator is recorded, signs it with the public key, Generates a contract transaction, broadcasts the second contract transaction to the first to N th street lamps 1001 to 100N, and transmits the same.

If the second contract transaction is valid and the second contract transaction is valid, the first to Nth street lamps 1001 to 100N respectively update the streetlight control information recorded in the contract information address information according to the second contract transaction And the current control state is changed (step 518). Each of the first to N th street lamps 1001 to 100N generates an event when a condition such as illuminance meets the condition according to a condition according to the current control state, And the streetlight control is performed.

9 shows an event processing procedure by the first to N th street lamps 1001 to 100N. Each of the first to N th street lamps 1001 to 100N determines whether the event is a control request by the administrator in response to receiving the first contract transaction (steps 602 and 604).

If the event is a control request of the manager in response to the reception of the first contract transaction, each of the first through N th street lamps 1001 through 100N transmits a corresponding contract address to the corresponding address of the contract information based on the contract information reference address included in the first contract transaction Generates control information including the control information, controls the streetlight according to the control information, generates state information such as illumination sensing information or streetlight on-off information, which is a result of the streetlight control, Generates a confirmation message, broadcasts the control confirmation message, and transmits the broadcast message to the administrator terminal 200 (steps 606 and 612).

If the event is not the control request of the manager according to the reception of the first contract transaction, each of the first through N th street lamps 1001 through 100N is generated in accordance with the control condition according to the predetermined control state by the second contract transaction For example, a sensor event (step 608). If the event is a sensor event, each of the first through N th street lamps 1001 through 100N controls the streetlight by referring to a condition according to a predetermined control state of the sensor information by the second contract transaction, Generates a control acknowledgment message including the status information, broadcasts the control acknowledgment message, and transmits the broadcast acknowledgment message to the administrator terminal 200 (steps 610 and 612).

The present invention provides a smart streetlight system that improves security and stability and protects from a single point of failure by using the properties of a distributed database of block chains and the property of ensuring authentication, prevention of self-denial, and integrity of control records.

Since the present invention borrows the advantages of a decentralized database network, a private network, and a centralized management technology, it can be applied not only to streetlight control, but also to various fields.

Also, the distributed database network of the present invention is maintained only by the progress of the network participating nodes. That is, it can autonomously operate without a centralized management server. In particular, by removing the central management server, it is possible to reduce the configuration and maintenance cost of the central organization, and to maintain the central server and eliminate the cost of initial server establishment. In the present invention, the central manager node is included as one of the participant nodes of the distributed database network, and even the direct control can be performed as necessary, thereby maintaining the advantage of the system having the existing central management server.

Further, the present invention can ensure the integrity of the non-repudiation / transaction record for the authentication / authentication of the node without the need for an escrow mechanism (a third party that requires trust).

Also, the present invention can guarantee the integrity of data through the encryption and data distribution storage method using the hash function of the distributed database, and the self denial of the authentication through the sign and transaction (Tx) using the private key of each participating node And prevent previous recording operations.

1001 to 100N: first to Nth street lamp units
200: administrator terminal
200: Medical institution system
300: Insurance Company System

Claims (14)

Claims [1] A smart streetlight system of contract reference type using broadcasting in a private distributed database network environment,
An administrator terminal for generating and broadcasting a contract transaction at the request of the manager;
And a plurality of streetlight devices that receive contract transactions from the administrator terminal and control the illumination device using control information and state information according to the contract transaction,
Wherein the manager terminal and the plurality of streetlight devices are connected to a private distributed database network,
The plurality of streetlight devices may process the contract transaction and some information of the previous block, process the information into blocks, broadcast the request, request approval from the plurality of streetlight devices, When approval information is provided from a predetermined number of streetlamp devices, the block is recorded in block-chain information to perform data synchronization,
If a block is provided from outside, it compares some information of a previous block recorded in advance with some information of a previous block included in the provided block to determine validity. If the block is valid, it provides approval information, Wherein the approval information is provided from at least a predetermined number of streetlamp devices according to the request, and the block is recorded in the block chain information to perform data synchronization. A contract - referenced smart streetlight system using broadcasting in. The method according to claim 1,
The contract transaction includes a contract information reference address,
Wherein each of the plurality of streetlamp apparatuses reads control information stored corresponding to a contract information reference address of the contract transaction from previously stored contract information to control the lighting apparatus,
Wherein the contract information includes different control information corresponding to each contract information reference address, and the control information is stored so as to correspond to each contract information reference address. The method according to claim 1,
Wherein the contract transaction comprises a first contract transaction generated by signing the contract information reference address with an individual key,
Wherein each of the plurality of streetlight devices reads out the control information stored corresponding to the contract information reference address of the contract transaction from the previously stored contract information if the contract transaction is the first contract transaction signed with the individual key assigned thereto, And provides the control result to the manager terminal,
Wherein the contract information includes different control information corresponding to each contract information reference address, and the control information is stored so as to correspond to each contract information reference address. The method of claim 3,
The contract transaction includes a second contract transaction generated by signing the contract information reference address with a public key,
Wherein each of the plurality of streetlight devices reads control information stored in association with the contract information reference address of the contract transaction from the contract information stored in advance if the contract transaction is a second contract transaction signed with a public key, And the lighting device is controlled according to whether the lighting device control condition meets the status information. The smart streetlight system of claim 1, wherein the lighting device is controlled based on broadcasting information. 5. The method of claim 4,
Wherein the state information is illuminance sensing information. 23. The smart streetlight system of claim 22, wherein the status information is illuminance sensing information. The method according to claim 1,
Each of the plurality of streetlight devices, when receiving the data synchronization request information including the first block,
Wherein the verification is performed based on whether the first block corresponds to the first block of the block chain information, and when the verification is successful, the blocks of the block chain information are broadcast and transmitted. Smart streetlight system using contract reference method using. The method according to claim 6,
Wherein the manager terminal transmits the first block to the new node when participation of a new node from the outside is requested,
Wherein the new node broadcasts the data synchronization request information including the first block to the plurality of streetlamp devices when the first block is provided, and transmits the data synchronization request information to the plurality of streetlamp devices, Reference smart streetlight system. A smart streetlight control method of a contract reference method using broadcasting in a private distributed database network environment,
Generating and broadcasting a contract transaction according to a request of an administrator terminal; And
And a plurality of streetlight devices receiving the contract transaction from the manager terminal and controlling the lighting device using the control information and the state information according to the contract transaction,
Wherein the manager terminal and the plurality of streetlight devices are connected to a private distributed database network,
The plurality of streetlight devices may process the contract transaction and some information of the previous block, process the information into blocks, broadcast the request, request approval from the plurality of streetlight devices, When approval information is provided from a predetermined number of streetlamp devices, the block is recorded in block-chain information to perform data synchronization,
If a block is provided from outside, it compares some information of a previous block recorded in advance with some information of a previous block included in the provided block to determine validity. If the block is valid, it provides approval information, Wherein the approval information is provided from at least a predetermined number of streetlamp devices according to the request, and the block is recorded in the block chain information to perform data synchronization. A Smart Streetlight Control Method Based on Contract Referencing Using Broadcasting in. 9. The method of claim 8,
The contract transaction includes a contract information reference address,
Wherein each of the plurality of streetlamp apparatuses reads control information stored corresponding to a contract information reference address of the contract transaction from previously stored contract information to control the lighting apparatus,
Wherein the contract information includes different control information for each contract information reference address so that the different control information is stored in correspondence with the contract information reference address. 9. The method of claim 8,
Wherein the contract transaction comprises a first contract transaction generated by signing the contract information reference address with an individual key,
Wherein each of the plurality of streetlight devices reads out the control information stored corresponding to the contract information reference address of the contract transaction from the previously stored contract information if the contract transaction is the first contract transaction signed with the individual key assigned thereto, And provides the control result to the manager terminal,
Wherein the contract information includes different control information for each contract information reference address so that the different control information is stored in correspondence with the contract information reference address. 11. The method of claim 10,
The contract transaction includes a second contract transaction generated by signing the contract information reference address with a public key,
Wherein each of the plurality of streetlight devices reads control information stored in association with the contract information reference address of the contract transaction from the contract information stored in advance if the contract transaction is a second contract transaction signed with a public key, And controlling the lighting device according to whether the lighting device control condition matches the state information. The method of claim 12, wherein the lighting device control condition is based on state information. 12. The method of claim 11,
And the state information is illumination sensing information. The smart streetlight control method according to the contract reference method using broadcasting in a private distributed database network environment. 9. The method of claim 8,
Each of the plurality of streetlight devices, when receiving the data synchronization request information including the first block,
And verifying whether the first block corresponds to a first block of block chain information, and if the first block is successfully verified, broadcasting the blocks of the block chain information and transmitting the resultant block. A method of smart streetlight control using contract reference method using broadcasting in network environment. 14. The method of claim 13,
Transmitting the first block to the new node when the manager terminal requests participation of a new node from the outside;
And broadcasting the data synchronization request information including the first block to the plurality of streetlight devices when the new node is provided with the first block, and transmitting the data synchronization request information to the plurality of streetlight devices. A Smart Streetlight Control Method Using Contract - Referencing Using Broadcasting of.

Images