RU2791965C1 - Wrist biometric device for bridge watch monitoring system - Google Patents

Abstract

FIELD: biometric sensors.

SUBSTANCE: biometric sensors of the operator's state in the bridge watch monitoring system (BWMS). A wrist biometric device comprises sensors of watch officer (WO) psychophysiological indicators, a touch button for acknowledgment to confirm WO capability, a vibration motor for supplying a tactile signal, connected together with the sensor controller and with an antenna for communication with the control unit of the BWMS, while the body of the device and the placement of these parts in it are adapted for use in the conditions of navigational watch on the bridge.

EFFECT: providing a device adapted for operation under the conditions of a navigational watch on the bridge, and increasing the reliability of monitoring the WO capability.

3 cl, 6 dwg

Description

The invention relates to biometric sensors of the state of operators in the alarm system for navigational watch on the bridge (SKDVP, eng. BNWAS).

The SKDVP alarm system is installed on sea and river vessels for various purposes, including ships and yachts, to improve the safety of navigation (hereinafter referred to as the vessel). The purpose of the PBMS is to monitor activities on the bridge and to detect the inability of operators to perform their functions, which may lead to maritime accidents (see Resolution MSC.128(75), (aborted on 20 May 2002), Performance standards for a bridge navigational watch alarm system (BNWAS), Annex 11). Russian text of the document: Resolution MSC.128(75), adopted on May 20, 2002. Recommendations for performance requirements for an emergency alarm system for a navigational watch on the BNWAS bridge.

The BNWAS monitors the alertness of the officer in charge of the watch (OO) and automatically warns the master or other qualified officer in the event that, for any reason, the OO becomes unable to perform his duties. In addition, SKDVP provides the VP with a means of calling for immediate assistance, if required. Unless disabled by the master, the MPCS should function whenever the ship's heading or trajectory control system is enabled.

These SKDVP include, in particular, the TSS / WATCH ALARM system (Valkom LLC, St. Petersburg). TSS/Watch Alarm provides light and sound signals to attract the attention of the watch officer. If there is no reaction, the system alerts the captain of the vessel and the reserve assistant, however, such a system does not contain a biometric sensor.

There are a large number of systems for monitoring the performance of operators using biometric data, in particular for rail and road transport. They prevent the loss of performance, in particular, associated with falling asleep in transport, as a factor with predominant catastrophic consequences. The most informative biometric parameter that makes it possible to assess the falling asleep factor is electrodermal activity, which, together with other physiological data, makes it possible to solve the problem of preventing falling asleep (RU 2376159 C1, NEUROCOM, 12/20/2009; NEUROCOM, 09/21/2017 and others).

SKDVP (BNWAS) using biometric means of crew control are described. Patent RU 121141 U1, "Baltic State Academy of the Fishing Fleet", 20.10.2012 describes a telemetric system for monitoring the wakefulness of a driver of a vehicle, contains a receiver connected via a radio channel and three telemetric sensors, two for determining the galvanic skin response, having electrodes for providing electrical contact with the driver's skin, and a pulse sensor with a light and photodiode. The system also includes a signal processing and control unit associated with the display device. Each sensor has an analog-to-digital converter, the output of which is connected to a transmitter with an antenna. The transmitters of all telemetric sensors and the receiver are configured to transmit and receive individual signals from each of the sensors, and the signal processing and control unit is configured to sum the signals from the sensors in real time. However, the description does not contain any specifics of maritime transport operators, as well as the design of telemetric sensors.

In the application KR 20150122358 (A) - BRIDGE NAVIGATIONAL WATCH ALARM SYSTEM USING BIOMETRICS, DMC CO LTD, 02.11.2015, a personnel control system is described using the biometric data of each crew member, so that an unqualified sailor could not be on the watch on the bridge. To do this, a biometric database is formed that stores data on some parts of the human bodies of workers in general and work information; a biometric recognition unit recognizing a body part of the watch officer to generate biometric data about the watch officer; a signaling device that gives visual or audible signals to the watch officer; and a control unit outputting a signal through the alarm device, allowing the officer of the watch to generate the biometric data of the officer of the watch and compare the employee information corresponding to the biometric data of the officer of the officer in the biometric database with the information of the officer of the officer. However, this system does not establish the fact of the capacity of this watch officer at the current time.

In the patent KR 102237855 (B1) - BNWAS USING BIOMETRICS, JUNG JONG PIL; SHIN DONG YEOL; KIM HYO KWAN; FAMILIDATA IM IL KYUN; 04/15/2021, (prototype) a control system is described, including a wearable sensor for detecting a biosignal, including at least one of the means for recording blood pressure, heart rate, body temperature and electrocardiogram, a mobile device for determining the state of health and a monitoring system for receiving information on the health status of a worker from a mobile device and generate an alarm when the biosignal is outside the normal range. A wearable device can be a device that can be worn on the wrist, such as the commercially available Galaxy Watch. The mobile device may be a personal terminal such as a smartphone. The wearable and mobile devices can communicate with each other via Bluetooth communication. In addition, the wearable device may further include an acceleration sensor and a gyro sensor for determining the exercise amount of the worker.

The present invention is aimed at improving the safety of navigation by improving the quality of monitoring the performance of the EAP with an increase in the number of psychophysiological indicators used, incl. electrodermal activity, to determine its functional state.

Wrist biometric device of the alarm system for the navigation watch on the bridge (SKDVP) contains a heart rate sensor (HR), a body temperature sensor (TT), a controller of sensors and communications with the control unit of the SKDVP, placed in a housing fixed on the watch officer's wrist ( VP).

The difference is as follows. The device additionally contains an electrodermal activity (EDA) sensor, a touch button for acknowledging the EP operability, a vibration motor for supplying a tactile signal, connected together with a heart rate sensor and a TT sensor with a sensor controller and with an antenna for communication with the SKDVP control unit.

On the side of the elongated body adjacent to the wrist, two convex oval-shaped EDA sensor electrodes are installed so that the major axes of the electrodes are parallel and installed relative to each other with a gap that ensures placement between the indicated electrodes of the TT sensor and the heart rate sensor, made in the form of a photoplethysmograph, and the vibration motor is placed in housing cavity, and the acknowledgment button is located on the front side of the housing.

The device may be characterized by the fact that the sensor and communication controller module is configured to determine the dynamic parameters of the EDA, heart rate, body temperature and turn on the vibration motor in case of a possible loss of EP performance.

In addition, the device may be characterized in that it is configured to immediately activate the second and third level alarms "ALARM" by pressing and holding the acknowledge button for more than 5 seconds.

The technical result is an increase in the safety of navigation by improving the quality of monitoring the performance of the VP with an increase in the number of psychophysiological indicators used, incl. electrodermal activity, to determine its functional state. This allows the VP, when on duty, to be less distracted by acknowledgment with buttons located in different parts of the bridge, and also reduces the need for VP distractions for acknowledgment by placing the acknowledgment button directly on the body of the NB device. If necessary, it is possible to send an emergency signal "Emergency call" using the NB device.

A feature of the patented wrist biometric device (NB device) used on ships as part of the SKDVP, in contrast to the systems for monitoring the performance of the operator of a railway and automobile vehicle, is that:

- to confirm that the locomotive driver or the driver of the car is in working condition, it is enough to press the acknowledge button in the cab. While on duty, the VP moves along the ship's bridge and can be in any part of it;

- in the existing SKDVP, to confirm that the VP is in working condition, he must approach and press the acknowledge button, which is installed in those places on the bridge, from where the VP can properly monitor visual indicators, as well as control the movement of the ship. Taking into account the overall dimensions of the bridge, the obligatory need for the VP to approach the acknowledgment button leads to his distraction from the performance of direct duties of managing the ship. When using the patent-pending NB device as part of the SKDVP, the VP does not need to leave its current location to press the acknowledge button.

The essence of the invention is illustrated in the drawings:

FIG. 1 - block diagram of the NB device as part of the SKDVP;

FIG. 2, 3 - design of the NB device in section;

FIG. 4 - view of the electrodes and photoplethysmograph of the NB device from the inner surface fixed on the wrist;

FIG. 5 - view from the inside;

FIG. 6 is a view from the front side.

In FIG. 1 positions are marked: 10 - SKDVP system, as well as blocks and modules included in the system: 101 - control unit; 102 - NB device; 103 - signaling module of the second level; 104 - signaling module of the third level. Block 101 is connected by a two-way communication line for information exchange and control with the NB 102 device and lines with modules 103 and 104.

The control unit 101 includes a module 1011, which is designed to select the operating mode:

a) Automatic mode" - SKDVP is activated whenever the ship's heading or trajectory control system is turned on, and is blocked if this system is turned off;

b) "Manual activation" - the product is switched on and functions constantly;

c) "Manual shutdown" - the product is turned off.

System Fault Indicator - Module 1012 FAULT, designed for system self-testing and troubleshooting.

Module 1013 setting the duration of the initial passive state. Designed for the captain to select the passive period of operation of the ACS at the current time with an interval of 1.7 minutes (100 s) to 12 minutes (intervals: 100, 120, 180, 240, 300, 360, 420, 480, 540, 600, 660 , 720 s).

Module 1014 test button and operation indicator, module 1015 backlight brightness control, which is designed to self-test the product and change the intensity of the display illumination. Module 1016 RESET acknowledgment is designed to return the product to its original passive state. Module 1017 is designed to receive and process information from the NB 102 device. 1018 for assessing the performance of the EP is designed to receive and process information from the NB device about fixing the next pulse of the galvanic skin response (GSR) within the time interval provided by the product operation algorithm.

Module 1019 of the first level alarm - designed to turn on visual indication after the end of the passive period of the product.

The device NB 102 includes modules: 1021 - vibration motor; antenna - 1022, sensor and communication controller module 1023, module 1024/1025 - electrodes of the electrodermal activity (EDA) sensor; 1026 RESET handshake; TT temperature sensor - module 1027; module 1028 - a heart rate sensor (HR) based on a photoplethysmograph.

FIG. 2-5 shows the design of the NB device. The positions are marked: 201 - building; 202 - outer surface; 203 - inner surface (base); 204 - cover; 205 - button acknowledgment; 206 - contacts for charging the battery; 207 - signal LED; 211, 212 - convex electrodes of the EDA sensor; 214 - vibration motor; 215 - antenna; 216 - gap between the electrodes; 217 - printed circuit board; 218 - large axes of the electrodes; 219 - battery 220 - wrist strap; 2151 - fastening the strap to the case; 22 - photoplethysmograph; 221 - TT temperature sensor.

The NB 20 device has a body 201 with external 202 and internal 203 surfaces adjacent to the wrist, as well as a cover 204 for the battery compartment with a touch button 205 for acknowledgment installed on the battery 219 and contacts 206 for charging the battery, as well as a signal LED 207 for displaying the health and level charge.

The EDA sensor contains two convex oval-shaped electrodes 211, 212, placed on the inner surface 203 of the base 201 so that the major axes 208 of the electrodes 211, 212 are parallel and installed relative to each other with a gap 216, which ensures the placement of the optical part of the photoplethysmograph 22 and the TT sensor 221 between electrodes 211, 212. The case 201 of the NB 20 device has a mount 2151 for a wrist strap 220. Module 21, photoplethysmograph 22, vibration motor 214, TT sensor 221, are connected to the input of sensor and communication controller module 1023, which is connected to SKDVP 10 via a radio channel.

The HB 20 device is connected to the control unit (module 101) via a Bluetooth connection for information transfer and control.

The system for monitoring the viability of an officer on duty makes it possible to evaluate the performance of the EP in module 21, namely, to differentiate between relaxation (risk of falling asleep) and active wakefulness.

The operation algorithm of the NB device as part of the SKDVP is carried out as follows.

1. When power is supplied to SKDVP 10, internal diagnostics of blocks and modules is carried out and communication with the NB 102 device is established.

When put on the hand, the NB 102 device collects, registers the psychophysiological parameters of the EP and transmits them via radio to the control unit - module 101.

2. If in the time interval provided for by the SKDVP 10 program, the NB 102 device does not confirm that the VP is in working condition, the waiting mode for the end of the passive period of the product operation set by the captain continues. In this case, the return of SKDVP to the initial passive state is possible in the following cases:

- when pressing the VP button 205 acknowledgment, located on the body of the device NB 102;

- when the VP is pressed (or by another person after turning on the sound signaling of the second and third levels), the button of the acknowledgment module 1016 located on the BU 101.

If before the expiration of the passive period of operation of the SKDVP 10, the NB 102 device does not receive a signal that the EP is in a working state, then the color indication and sound alarm are switched on sequentially by means of modules 1019, 103 and 104, provided for by the current SKDVP 10.

Tests have shown the achievement of a technical result - improving the quality of monitoring the performance of the EP through the use of a set of psychophysiological indicators, supplemented by the registration of electrodermal activity, to determine its functional state, as well as placing the acknowledgement button directly on the body of the NB device. This allows the VP, when on watch, to be less distracted by acknowledgment with buttons located in different parts of the bridge.

Claims (3)

1. Wrist biometric alarm system device for navigation watch on the bridge (SKDVP), containing a heart rate sensor (HR), a body temperature sensor (TT), a sensor controller and communication with the control unit SKDVP, placed in a case mounted on the wrist watch assistant (VP), characterized in that it additionally contains an electrodermal activity (EDA) sensor, a touch button for acknowledging the operability of the VP, a vibration motor for supplying a tactile signal, connected together with a heart rate sensor and a TT sensor with a sensor controller and with an antenna for communication with SKDVP control unit, while on the side of the elongated body adjacent to the wrist, two convex oval-shaped EDA sensor electrodes are installed so that the major axes of the electrodes are parallel and installed relative to each other with a gap that ensures placement between the indicated electrodes of the TT sensor and the heart rate sensor, made in the form photoplethysmograph, and the vibration motor is located in the housing cavity, and the checkout button is located on the front side of the housing. 2. A wrist biometric device according to claim 1, characterized in that the sensor and communication controller module is configured to determine the dynamic parameters of the EDA, heart rate, body temperature and turn on the vibration motor in case of a possible loss of EP operability. 3. Wrist biometric device according to claim 1, characterized in that it is made with the possibility of immediately actuating the alarm of the second and third levels "Emergency call" ("ALARM") by pressing and holding the acknowledgment button for more than 5 s.

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