KR102210053B1 - Digital arrest system and operation method using restraint device - Google Patents

Abstract

The present invention relates to a system and a method for digital arrest using a restraint device. The system comprises: a restraint device having a beacon and a receiver for location tracking and restraining movement of a specific body of a suspect; a user terminal having the beacon and the receiver and remotely controlling releasing of the restraint device; and an arrest server tracking a location of the restraint device through broadcasting of the user terminal, registering an open key of the restraint device in a blockchain to save use history of the restraint device and details of arrest, and generating an encoded releasing command according to releasing request of the user terminal to release the restraint device.

Description

Digital arrest system and operation method using restraint device {DIGITAL ARREST SYSTEM AND OPERATION METHOD USING RESTRAINT DEVICE}

The present invention relates to a digital arrest technology using a restraint device, and more specifically, a restraint capable of tracking the location of a suspect through a restraint device for restraining the suspect, controlling the restraint device remotely, and recording the arrest and arrest process of the suspect. It relates to a digital arrest system and operation method using the device.

Assisted GPS (AGPS) technology can be used for remote outdoor location tracking of mobile phones. General GPS (Global Position System) has the disadvantages that the positioning error is small, but real-time location update is difficult and power consumption is high, but AGPS uses cellular location data to support the GPS data that has been disconnected in real time to alleviate these disadvantages. You can use triangulation as a basis. That is, it is possible to obtain a very close approximation value in real time by periodically switching between the GPS data and the cellular location by supplying the cellular location data to the GPS receiver.

In addition, Bluetooth Low Energy (BLE) beacon technology can be used for indoor location tracking within a distance of about 10 meters. Compared to general Bluetooth, the power consumption is less, the amount of data used for communication is very small, and there is no separate pairing/bonding procedure, so the transmission and reception procedure is simpler and faster, and transmission and reception are performed at the data link layer. By encrypting data, you can easily alleviate security problems that Bluetooth generally has.

In addition, the RSA algorithm is an old algorithm used for encrypting and decrypting messages in public key cryptography, and may correspond to an asymmetric encryption algorithm mathematically implemented based on the fact that it is very difficult to decompose a large number of primes. In addition, Blockchain technology can serve as a ledger with excellent security, can prevent corruption and various illegal activities in public work, and data is tampered with because data is not centrally stored and managed. It can have the advantage of being extremely unlikely to become.

Korean Patent Registration No. 10-0845440 (2008.07.04)

An embodiment of the present invention provides a digital arrest system and operation method using a restraint device capable of tracking the location of a suspect through a restraint device for restraining a suspect, remotely controlling the restraint device, and recording the arrest and arrest process of the suspect. I want to.

An embodiment of the present invention is a digital arrest system and operation using a restraint device that can reduce the risk that may occur in the process of arresting and arrest a suspect, and give transparency to the arrest process by recording the use of the arresting device and the arrest history. I want to provide a way.

An embodiment of the present invention provides a digital arrest system and operation method using a restraint device that can improve the portability of the restraint device by minimizing energy consumption while smoothly tracking the location of the restraint device by combining AGPS technology and BLE beacon technology. I want to provide.

Among the embodiments, a digital arrest system using a restraint device includes a beacon and a receiver for location tracking, a restraint device for restraining the motion of a specific body of the suspect, and the beacon and the receiver, A user terminal that remotely controls the release of the restraint device and the location of the restraint device through relay of the user terminal, and registers the public key of the restraint device in the blockchain to record the use of the restraint device and the arrest history And an arrest server for initiating the release of the restraint device by generating an encrypted release command according to the release request of the user terminal.

The restraint device includes a pair of locking rings and locking pins, and includes a pair of restraints providing the restraint and a single board computer controlling the operation of the restraints, a battery supplying power to the single-board computer, and the single The board may include a protective layer protecting the computer and the battery, and may include a body portion coupled to the pair of restraints.

The restraint device further includes an electric shock unit for providing an electric shock to the suspect, and in the process of receiving the beacon signal encrypted with the private key of the user terminal, the reception of the corresponding beacon signal from the user terminal continues for a specific time or longer. If it fails, it is possible to start the operation of the electric shock unit.

The restraint device further includes a biosignal measuring unit for measuring the biosignal of the suspect, and when the rate of change between the biosignals measured before and after the operation of the electric shock unit exceeds a preset threshold, the operation of the electric shock unit is terminated. I can.

The user terminal receives the beacon signal encrypted with the private key of the restraint device, decrypts it with the public key of the restraint device, and transmits it to the arrest server, and the arrest server determines the location of the restraint device based on the decrypted beacon signal. It can be tracked in real time.

The restraint device further includes an AGPS module for outdoor location tracking, and the arrest server directly interlocks with the AGPS module when the location of the restraint device is changed from indoor to outdoor to track the position of the restraint device in real time. I can.

The arrest server receiving a release request of the restraint device from the user terminal, generating a release command for the restraint device according to the release request, encrypting the release command with a private key of the user terminal, and It can be operated through the step of transmitting the encrypted unlock command to the restraint device to initiate a release operation of the restraint device.

The arrest server detecting the use of the restraint device, when the use is detected, providing a notification to the user terminal and requesting input of the arrest details regarding the use, and receiving the arrest details from the user terminal Then, it can be operated through the steps of searching for the public key of the restraint device in the blockchain and storing the time and location information of the use in a blockchain node associated with the public key together with the arrest history.

The arrest server includes a biometric authentication unit that performs user authentication using biometric information, and is associated with the public key when additionally receiving biometric information for release approval along with the arrest status from the user terminal according to the user's selection. The biometric information may be stored by allocating a unique security area to the user.

In the process of storing the biometric information in the security area, the arrest server may obfuscate and store the secret key generated based on the time and location information of the use.

When the arrest server receives a request for release of the restraint device from the user terminal, retrieving the public key of the restraint device in the blockchain, the most recent use time and location in the blockchain node associated with the public key Extracting information, generating a secret key based on the use time and location information, restoring biometric information stored in a secure area associated with the public key using the secret key, and storing the restored biometric information The operation may be performed by performing user authentication through the biometric authentication unit as a basis, and generating a release command for the restraint device in response to the release request when the user authentication is successful.

Among the embodiments, a digital arrest operation method using a restraint device is a digital arrest system including a restraint device, a user terminal, and an arrest server, by registering a mutual public key between the restraint device and the user terminal to pair (pairing) The step of, when the use of the restraint device is detected, providing a notification to the user terminal paired with the restraint device and initiating the location tracking of the restraint device, the distance between the restraint device and the user terminal Determining a surveillance level including relief, caution, urgency, and escape according to, and when a change in the surveillance level occurs, a notification is provided to the corresponding user terminal, and a preset external control server when the surveillance level corresponds to escape It includes the step of requesting emergency assistance.

The disclosed technology can have the following effects. However, since it does not mean that a specific embodiment should include all of the following effects or only the following effects, the scope of the rights of the disclosed technology should not be understood as being limited thereby.

The digital arrest system and operation method using a restraint device according to an embodiment of the present invention can track the location of the suspect through a restraint device for restraining the suspect, remotely control the restraint device, and record the arrest and arrest process of the suspect. .

The digital arrest system and operation method using a restraint device according to an embodiment of the present invention can reduce the risk that may occur in the process of arresting and arrest a suspect, and provide transparency to the arrest process by recording the use and arrest history of the arrest device. can do.

The digital arrest system and operation method using a restraint device according to an embodiment of the present invention combines AGPS technology and BLE beacon technology to facilitate indoor and outdoor location tracking of the restraint device, while minimizing energy consumption to increase the portability of the restraint device. have.

1 is a diagram illustrating a digital arrest system according to the present invention.
FIG. 2 is a diagram illustrating a basic configuration of the restraint device of FIG. 1.
3 is a diagram for explaining the functional configuration of the restraint device of FIG. 1.
4 is a flowchart illustrating a digital arrest operation method according to an embodiment of the present invention.

Since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiments can be variously changed and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only those effects, the scope of the present invention should not be understood as being limited thereto.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from other components, and the scope of rights is not limited by these terms. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

When a component is referred to as being "connected" to another component, it should be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, when it is mentioned that a component is "directly connected" to another component, it should be understood that there is no other component in the middle. On the other hand, other expressions describing the relationship between the constituent elements, that is, "between" and "just between" or "neighboring to" and "directly neighboring to" should be interpreted as well.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as “comprise” or “have” refer to implemented features, numbers, steps, actions, components, parts, or It is to be understood that it is intended to designate that a combination exists and does not preclude the presence or addition of one or more other features or numbers, steps, actions, components, parts, or combinations thereof.

In each step, the identification code (for example, a, b, c, etc.) is used for convenience of explanation, and the identification code does not describe the order of each step, and each step has a specific sequence clearly in context. Unless otherwise stated, it may occur differently from the stated order. That is, each of the steps may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

The present invention can be embodied as computer-readable codes on a computer-readable recording medium, and the computer-readable recording medium includes all types of recording devices storing data that can be read by a computer system. . Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices. Further, the computer-readable recording medium is distributed over a computer system connected by a network, so that the computer-readable code can be stored and executed in a distributed manner.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined. Terms defined in commonly used dictionaries should be construed as having meanings in the context of related technologies, and cannot be construed as having an ideal or excessive formal meaning unless explicitly defined in the present application.

1 is a diagram illustrating a digital arrest system according to the present invention.

Referring to FIG. 1, the digital arrest system 100 may include a restraint device 110, a user terminal 130, an arrest server 150, and a block chain 170.

The restraint device 110 may correspond to a device that provides a physical restraint force that restricts movement of the suspect to a specific body. For example, the restraint device 110 may correspond to an electronic handcuff. The restraint device 110 may be implemented including a beacon and a receiver for location tracking, and may include a communication module for network connection with an external device. The restraint device 110 may operate by being connected to the user terminal 130 and the arrest server 150 through a network. The restraint device 110 will be described in more detail in FIG. 2.

The user terminal 130 may correspond to a computing device that is wirelessly connected to the restraint device 110 and can remotely control the release of the restraint device 110. The user terminal 130 may be implemented as a smartphone, a laptop computer, or a computer, but is not limited thereto, and may be implemented as various devices such as a tablet PC. The user terminal 130 may be connected to the arrest server 150 through a network, and a plurality of user terminals 130 may be connected to the arrest server 150 at the same time.

In one embodiment, the user terminal 130 and the restraint device 110 may perform data encryption in the process of transmitting and receiving a beacon signal. To this end, each of the user terminal 130 and the restraint device 110 includes a beacon and a receiver, and may include a separate configuration for performing an encryption operation. More specifically, the restraint device 110 may encrypt a beacon signal with a private key and transmit it to the user terminal, and the user terminal 130 decrypts the beacon signal received from the restraint device 110 with the public key of the restraint device 110 can do. Transmission of the beacon signal from the user terminal 130 to the restraint device 110 may also be processed in the same process.

The arrest server 150 tracks the location of the arrest device 110 through the relay of the user terminal 130, stores the usage record and the arrest history of the arrest device 110 in the block chain 170, and stores the user terminal ( 130) may be implemented as a computer or a server corresponding to a program capable of initiating the unlocking of the restraint device 110 by generating an encrypted unlock command.

In addition, the arrest server 150 may be connected to the user terminal 130 through a wired network or a wireless network such as Bluetooth or WiFi, or may be directly connected to the restraint device 110 through a wired or wireless network. The arrest server 150 may store various pieces of information in the process of operating the digital arrest system 100 in conjunction with a database (not shown in FIG. 1 ). The arrest server 150 is a basic system configuration and may be implemented including a processor, a memory, a user input/output unit, and a network input/output unit, and a detailed description thereof will be omitted.

Blockchain 170 is a distributed data storage environment where small data called'blocks' are stored in a distributed data storage environment based on a chain-type connection created based on the P2P method, so that no one can arbitrarily modify and anyone can view the results of changes. It may correspond to data management technology based on computing technology. Blockchain 170 is a form of distributed data storage technology, and as a change list in which continuously changed data is recorded in all participating nodes, it may have a characteristic that it cannot be arbitrarily manipulated by the operator of the distributed node. In addition, the blockchain 170 may be implemented and operated separately from the database, but may be included in the database and implemented.

FIG. 2 is a diagram illustrating a basic configuration of the restraint device of FIG. 1.

Referring to FIG. 2, the restraint device 110 may be implemented including a pair of restraint portions 210 and a body portion 230. In addition, the restraint device 110 may further include a configuration for an additional operation in addition to a basic configuration according to an embodiment, which will be described in more detail in FIG. 3.

The restraint portion 210 may include a locking pin 211 and a pair of locking rings 213 and may be worn on a body such as a wrist or ankle of the suspect to directly restrain movement. The restraining part 210 may be implemented with a material that is hard to be easily destroyed by human force in order to provide an appropriate restraining force, and the strength of the restraining force may be adjusted stepwise through the physical structure of the locking ring 213. The locking pin 211 can perform a locking and unlocking operation according to a digital signal of the body 230, and at this time, the body 230 is only related to the locking and unlocking by remote control of the user terminal 130. It can be implemented to provide a digital signal.

The body part 230 may be implemented by including a single board computer 231, a battery 233, and a protective film 235. The single-board computer 231 can control the operation of the restraint unit 210, the battery 233 can supply power to the single-board computer 231, and the protective film 235 is the single-board computer 231 It may correspond to an outer housing to protect the and battery 233. The body portion 230 may be combined with a pair of restraining portions 210 at both ends, and may be implemented in a physical structure capable of stepwise adjusting the separation distance between the pair of restraining portions 210 as needed. .

The single board computer 231 may perform control on basic operations such as data encryption, location tracking, and BLE communication, and may process interlocking operations with configurations for additional functions as needed. The battery 233 may be implemented as an ultra-miniature battery with an efficiency enough to withstand the power consumption of the single board computer 231, and the protective film 235 will absorb a strong shock when the suspect attempts intentional damage. It can be implemented through materials that have the ability to do so.

3 is a diagram for explaining the functional configuration of the restraint device of FIG. 1.

Referring to FIG. 3, the restraint device 110 may include an electric shock unit 310, a biosignal measurement unit 330, an AGPS module unit 350, a beacon signal processing unit 370, and a control unit 390. .

The electric shock unit 310 may provide an electric shock to the suspect whose body is restrained by the restraint device 110. That is, in the process of receiving the beacon signal encrypted with the private key of the user terminal 130 through the electric shock unit 110, the restraint device 110 receives the corresponding beacon signal from the user terminal 130 for a specific time or longer. If it continues to fail, the operation of the electric shock unit 310 may be started.

More specifically, the restraint device 110 and the user terminal 130 can operate in conjunction with each other within a predetermined distance (for example, 10 meters), and for this purpose, a beacon capable of transmitting and receiving beacon signals, respectively. And can be implemented including a receiver. That is, the restraint device 110 and the user terminal 130 may be connected through mutual pairing, and the behavior of the suspect may be monitored by periodically transmitting and receiving beacon signals between each other. If the distance between the restraint device 110 and the user terminal 130 is separated by more than a certain distance, it may not be possible to receive beacon signals from each other, and the corresponding state lasts for a certain time (eg, 30 seconds) or more If it is, it is considered that the suspect has escaped, and the restraint device 110 may apply an electric shock to the suspect by itself.

Meanwhile, the restraint device 110 may stepwise adjust the intensity of the electric shock applied to the suspect through the electric shock unit 310 when the reception failure of the beacon signal from the user terminal 130 continues. For example, as the duration of the reception failure is longer, the intensity of the electric shock applied by the electric shock unit 310 may increase. Meanwhile, the restraint device 110 may control the operation of the electric shock unit 310 according to a control signal from the arrest server 150.

The biosignal measuring unit 330 may measure a biosignal of a suspect whose body is restrained by the restraint device 110. Here, the biosignal is information extracted from the human body and may include a biochemical signal, an electrical signal, and a physical signal that can be measured in the nervous system, cardiovascular system, and musculoskeletal system. For example, the biosignal may include an electrocardiogram, heart rate, body temperature, and the like. The restraint device 110 may measure a bio-signal of the suspect through the bio-signal measurement unit 330 before and after the electric shock unit 310 is operated, and calculate a rate of change between the bio-signals.

If the rate of change between the biological signals exceeds a preset threshold, the restraint device 110 may terminate the operation of the electric shock unit 310. In this case, the biosignal measurement unit 330 may measure at least one biosignal, and when the biosignal has a plurality of types, a threshold value may be set for each type. In addition, if at least one case occurs in which the rate of change of the bio-signals for each type exceeds the threshold value, the restraint device 110 may immediately terminate the operation of the electric shock unit 310 for the safety of the suspect.

The AGPS module unit 350 may be used to track the outdoor location of the restraint device 110. That is, the arrest server 150 can quickly track the outdoor location of the restraint device 110 by interlocking with the AGPS module unit 350. In one embodiment, when the position of the arrest device 110 is changed from indoor to outdoor, the arrest server 150 may directly interlock with the AGPS module unit 350 to track the position of the arrest device 110 in real time. That is, the arrest server 150 may directly track the location of the restraint device 110 without relaying from the user terminal 130. In this case, the location information of the restraint device 110 may be periodically received and updated from the arrest server 150 of the user terminal 130.

On the other hand, the arrest server 150 may track the indoor location of the restraint device 110 through relaying the user terminal 130 when the location of the restraint device 110 is indoors. In one embodiment, the user terminal 130 may receive a beacon signal encrypted with the private key of the arrest device 110, decrypt it with the public key of the arrest device 110, and transmit it to the arrest server 150. The arrest server 150 may track and record the indoor location of the restraint device 110 in real time based on the decoded beacon signal.

The beacon signal processing unit 370 may be used to track the indoor location of the restraint device 110. To this end, the beacon signal processing unit 370 may operate in conjunction with a beacon and a receiver included in the restraint device 110. The beacon generates a beacon signal and transmits it to the outside, and the receiver may play a role of receiving a beacon signal from the outside.

The control unit 390 may be implemented by the single board computer 231 of the restraint device 110, and the electric shock unit 310, the biosignal measurement unit 330, the AGPS module unit 350, and the beacon signal processing unit ( The operation for 370) may be controlled.

4 is a flowchart illustrating a digital arrest operation method according to an embodiment of the present invention.

Referring to FIG. 4, the method of operating in the digital arrest system may include the following steps. The digital arrest system 100 may register a mutual public key between the restraint device 110 and the user terminal 130 to perform a pairing (S410). When the use of the restraint device 110 is detected, the digital arrest system 100 provides a notification to the user terminal 130 paired with the restraint device 110 and starts tracking the location of the restraint device 110 It is possible to perform the step (S430).

In addition, the digital arrest system 100 may perform a step of determining a surveillance level including relief, caution, urgency and escape according to the distance between the restraint device 110 and the user terminal 130 (S450). . The digital arrest system 100 may provide a notification to the corresponding user terminal 130 when a change in the monitoring level occurs, and may perform a step of requesting emergency assistance to a preset external control server when the monitoring level corresponds to escape. (S470).

In one embodiment, the arrest server 150 receiving a release request of the restraint device 110 from the user terminal 130, generating a release command for the restraint device 110 according to the release request, the user terminal The operation may be performed through the steps of encrypting the release command with the private key of 130 and transmitting the encrypted release command to the restraint device 110 to initiate the release operation of the restraint device 110. To this end, the arrest server 150 may register the private key of the user terminal 130 in advance, and if necessary, may allocate a unique security area to the user and store the corresponding private key. As a result, the arrest server 150 may support remote control of the user terminal 130 by relaying the release operation for the restraint device 110.

In one embodiment, the arrest server 150 detects the use of the restraint device 110, and when the use of the restraint device 110 is detected, while providing a notification to the user terminal 130, Requesting the input of, when receiving the arrest history from the user terminal 130, searching for the public key of the restraint device 110 in the block chain 170, and the time and location of use in the blockchain node associated with the public key It can be operated by storing the information along with the arrest details.

The restraint device 110 may control the locking operation of the locking ring through the locking pin, and when the locking operation of the locking ring is detected, it may generate a use signal according to the occurrence of use. The arrest server 150 may detect the use of the arrest device 110 through a use signal generated by the arrest device 110. In addition, the arrest server 150 may request the user terminal 130 to input the arrest details in response to the use of the arrest device 110.

In this case, the user terminal 130 may provide an interface for inputting the arrest details, and may install and execute a dedicated application for this. The arrest server 150 may provide a notification regarding the use of the restraint device 110 through a push message, and may provide notification in various ways such as vibration and sound.

On the other hand, in the block chain 170, the public key of the arrest device 110 may be registered and stored in advance, and the arrest server 150 records the usage history and the arrest history according to the use of the arrest device 110 in the block chain ( 170). The storage process in the block chain 170 includes the process of searching for the public key of the restraint device 110 stored in the block chain 170, the process of determining a data storage block based on the searched public key, and information related to the data storage block. It can be made in the process of storing and updating the blockchain 170. The update of the blockchain 170 may correspond to a process of propagation of a data storage block.

In one embodiment, the arrest server 150 may include a biometric authentication unit that performs user authentication using biometric information. In addition, when the arrest server 150 additionally receives biometric information for approval of release along with the arrest details from the user terminal 130 at the user's selection, it is associated with the public key and assigns a unique security area to the user to Information can be saved. That is, the user can selectively input biometric information in the process of inputting the arrest status through the user terminal 130, and the selectively input biometric information is used to generate a release command in the future release process of the restraint device 110. It can be used as authentication information for.

Meanwhile, the security area unique to the user may be logically defined in the memory, and access may be restricted according to the uniquely granted access right. As another example, the security area may be implemented by being separately included in the arrest server 150 as a physical storage device, and may be implemented to be accessible only when it has unique access rights or when authentication is successful.

In one embodiment, the arrest server 150 may obfuscate and store the secret key generated based on the time and location information of use in the process of storing the corresponding biometric information in the security area. The arrest server 150 may generate a secret key by inputting the use time and location information of the restraint device 110 through a secret key generation algorithm, and may obfuscate and store biometric information through an obfuscation algorithm. Meanwhile, the arrest server 150 may use the biometric information as it is, but may extract feature information based on the biometric information and use it instead of the biometric information if necessary.

In one embodiment, the arrest server 150 performs the first obfuscation with the first secret key generated based on the point of use in the process of storing the corresponding biometric information in the security area, and the location of the first obfuscation result The second secret key generated based on the information may be second obfuscated and stored. Accordingly, the process of restoring the obfuscated biometric information may be performed through a decryption process for the second obfuscation based on the second secret key and a decryption process for the first obfuscation based on the first secret key.

In one embodiment, when the arrest server 150 receives a request to release the restraint device 110 from the user terminal 130, the step of retrieving the public key of the restraint device 110 in the block chain 170, public Extracting the most recent usage time and location information from the blockchain node associated with the key, generating a secret key based on the usage time and location information, and biometric information stored in the secure area associated with the public key using the secret key Restoring, performing user authentication through a biometric authentication unit based on the restored biometric information, and generating a release command for the restraint device 110 in response to a release request when user authentication is successful. I can.

That is, the arrest server 150 may obtain information on the time when the restraint device 110 was most recently used based on the time when the cancellation request was made through a search for the block chain 170, and based on the information A secret key can be generated and biometric information stored in the secure area can be restored using the secret key and the obfuscation algorithm. The arrest server 150 may enhance security regarding the unlock operation of the restraint device 110 worn by the suspect by adding user authentication to the unlocking operation process of the restraint device 110.

In addition, the arrest server 150 may transmit the generated release command to the restraint device 110 to initiate a release operation of the restraint device 110, thereby processing remote control for the release request of the user terminal 130.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the following claims. You will understand that you can do it.

100: digital arrest system
110: restraint device 130: user terminal
150: arrest server 170: blockchain
210: restraint
211: locking pin 213: locking ring
230: body 231: single board computer
233: battery 235: protective film
310: electric shock unit 330: bio-signal measuring unit
350: AGPS module unit 370: beacon signal processing unit
390: control unit

Claims (12)

A restraint device including a beacon and a receiver for location tracking and restricting movement of a suspect's specific body;
A user terminal including the beacon and the receiver and remotely controlling the release of the restraint device; And
The location of the restraint device is tracked through the relay of the user terminal, the public key of the restraint device is registered in the blockchain to store the usage record and the arrest history of the restraint device, and encrypted according to the request of the user terminal Including an arrest server for generating the released command to initiate the release of the restraint device,
The arrest server
Detecting use of the restraint device;
When the use is detected, providing a notification to the user terminal and requesting an input of an arrest history for the use;
Retrieving the public key of the restraint device from the blockchain upon receiving the arrest background from the user terminal; And
A digital arrest system using a restraint device, characterized in that it operates through the step of storing the time and location information of the use in a block chain node associated with the public key together with the arrest history.
The method of claim 1, wherein the restraint device
A pair of restraints including a pair of lock rings and a lock pin and providing the restraint; And
A single board computer for controlling the operation of the restraint unit, a battery for supplying power to the single-board computer, and a protective film for protecting the single-board computer and the battery, and a body portion coupled to the pair of restraints. Digital arrest system using a restraint device characterized by.
The method of claim 1, wherein the restraint device
Further comprising an electric shock unit for providing an electric shock to the suspect,
In the process of receiving the beacon signal encrypted with the private key of the user terminal, if the reception of the beacon signal from the user terminal continues to fail for a specific time or longer, the electric shock unit starts to operate. Digital arrest system used.
The method of claim 3, wherein the restraint device
Further comprising a bio-signal measuring unit for measuring the bio-signal of the suspect,
Digital arrest system using a restraint device, characterized in that when the rate of change between the bio-signals measured before and after the operation of the electric shock unit exceeds a preset threshold, the operation of the electric shock unit is terminated.
The method of claim 1,
The user terminal receives the beacon signal encrypted with the private key of the restraint device, decrypts it with the public key of the restraint device, and transmits it to the arrest server,
The arrest server digital arrest system using a arrest device, characterized in that tracking the position of the arrest device in real time based on the decoded beacon signal.
The method of claim 5,
The restraint device further comprises an AGPS module for outdoor location tracking,
The arrest server digital arrest system using a restraint device, characterized in that when the position of the restraint device is changed from indoor to outdoor, it directly interlocks with the AGPS module to track the position of the restraint device in real time.
The method of claim 1, wherein the arrest server
Receiving a request to release the restraint device from the user terminal;
Generating a release command for the restraint device according to the release request;
Encrypting the unlock command with the private key of the user terminal; And
A digital arrest system using a restraint device, characterized in that it operates through the step of transmitting the encrypted release command to the restraint device to initiate a release operation of the restraint device.
delete The method of claim 1, wherein the arrest server
Including a biometric authentication unit that performs user authentication using biometric information,
According to the user's selection, when additionally receiving biometric information for authorization for release along with the arrest process from the user terminal, the biometric information is associated with the public key and a unique security area is assigned to the user to store the biometric information. Digital arrest system using a restraint device.
The method of claim 9, wherein the arrest server
Digital arrest system using a restraint device, characterized in that in the process of storing the biometric information in the security area, obfuscating and storing a secret key generated based on the point of use and location information.
The method of claim 10, wherein the arrest server
When receiving a request to release the restraint device from the user terminal,
Retrieving the public key of the restraint device in the block chain;
Extracting the most recent usage time and location information from the blockchain node associated with the public key;
Generating a secret key based on the use time and location information;
Restoring biometric information stored in a secure area associated with the public key using the secret key;
Performing user authentication through the biometric authentication unit based on the restored biometric information; And
When the user authentication is successful, the digital arrest system using a restraint device is operated by generating a release command for the restraint device in response to the release request.
In a digital arrest operation method using a digital arrest system comprising a arrest device, a user terminal and an arrest server,
Registering and pairing a mutual public key between the restraint device and the user terminal, and registering the public key of the restraint device in a blockchain;
When the use of the restraint device is detected, providing a notification to a corresponding user terminal paired with the restraint device and initiating location tracking of the restraint device;
Determining a surveillance level including relief, caution, urgency and escape according to the distance between the corresponding restraint device and the corresponding user terminal; And
Providing a notification to the corresponding user terminal when the monitoring level is changed, and requesting emergency assistance to a preset external control server when the monitoring level corresponds to escape,
The arrest server
Detecting use of the restraint device;
When the use is detected, providing a notification to the user terminal and requesting an input of an arrest history for the use;
Retrieving the public key of the restraint device from the blockchain upon receiving the arrest background from the user terminal; And
A digital arrest operation method using a restraint device, characterized in that it operates by storing the time and location information of the use in a blockchain node associated with the public key together with the arrest history.

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