RU159778U1 - ELECTRONIC BRACELET OF THE SYSTEM OF ELECTRONIC MONITORING OF CONTROLLED PERSONS - Google Patents

Abstract

1. An electronic bracelet of an electronic monitoring system of controlled persons, comprising a sealed polymer case, a tamper evident sensor, means for attaching the case to the body in the form of an elastic polymer belt with a sensor for monitoring its integrity, while two printed conductors are located in the belt on one substrate, the fastening is carried out in the form of a closed collet detachable connection and metal embedded plates inside the belt, and electrical contacts built into the housing, providing forcing the belt and creating a closed loop "conductor-loop", with each end side of the belt containing two studs, and the base of the housing contains respectively counter holes for them, connected to an autonomous power source microcontroller with a temperature sensor, configured to generate and transmit encoded signal, quartz resonator, microcontroller with RFID path and three-axis electronic bracelet position sensor. 2. The bracelet according to claim 1, characterized in that reusable nuts are used in addition to the studs to fasten the belt, which, after twisting, is closed with disposable plastic cap-seals. 3. The bracelet according to claim 2, characterized in that the disposable plastic cover seals are configured to fit flush with the bracelet and with individual markings applied by laser engraving. 4. The bracelet according to claim 1, characterized in that the elastic belt is made of a hypoallergenic polymer.

Description

The utility model relates to electronic monitoring devices that provide the ability to search, detect, determine the current location and track the movements of moving ground objects, and is intended for monitoring controlled persons, remote individual identification and tracking of their location.

The prior art US patent No. 4918432 (IPC G08B 29/04, priority from Sep 27, 1988, publ. From 04/17/1990) known system of electronic monitoring of a person under house arrest, containing an identification device mounted on a controlled person, and the device identification worn on the arrested person, which includes a power source, a monitoring device (monitoring unit) for compliance with specified conditions, a transmitter for periodically transmitting data, including information that uniquely identifies the device about monitoring, and information about the environment received by the monitoring device, a receiver receiving signals from the transmitter of the monitoring device, and a data processing unit that analyzes the data received from the monitoring device by determining the time of receipt of a periodic signal and information identifying the monitoring device contained in the received receiver data.

The known system does not allow to control the integrity of the control device (passive monitoring unit), which indicates its low reliability.

Also known is an electronic device containing a sealed housing with a sensor for monitoring unauthorized removal and opening of the latter, elastic belts with a system for monitoring their integrity, including a lock with a sensor for locking integrity, a microprocessor connected to the power supply unit, configured to generate a signal and transmit an encoded signal with a temperature sensor and a quartz resonator (see, for example, equipment of IT Corporation LLC, http://www.itcrp.ru/advanced.html).

The closest to the claimed utility model in terms of technical nature and the technical result achieved by using the utility model is the EB described in RF patent No. 145414 (IPC G08B 25/08, priority 04/04/2014, publ. 09/20/2014) containing a sealed polymer case , means for mounting it, an integrity monitoring system (consisting of conductors in the belt, detachable contacts for connecting the electrical circuit of the belt and the housing, the processor and the program code) connected to an autonomous power source microcontroller, made the ability to generate a signal and transmit an encoded signal, a temperature sensor, a quartz resonator, a microcontroller with an RFID path and a three-axis EB position sensor, while to control the integrity of the bracelet, the case fastening means is made in the form of a sealed plastic strap equipped with a cable loop and electrical contacts are built into the case for clamping of the belt and creating a closed circuit "conductor-loop", and in the base of the housing for closing with the belt are metal mortgages with a thread. A disadvantage of the known EB is the lack of reliability of the EB, in particular due to the insecurity of the structure from partial damage to the belt and the presence of more parts, including disposable ones. In addition, the belt contains a cable loop with a single conductor. In case of unauthorized removal, by cutting the belt, it is quite easy to make a parallel chain, which will prevent the belt breaking signal.

The claimed utility model allows you to create a design of electronic components with increased reliability with integrity control (uncontrolled tampering and removal). The specified technical result is achieved due to the fact that the electronic bracelet of the electronic monitoring system of controlled persons contains: a sealed polymer case, an elastic belt, while the case contains a sensor for unauthorized removal and opening of the latter and a belt integrity sensor, and the elastic belt is equipped with two printed conductors located on one substrate, connected to an autonomous power source, a microcontroller with a temperature sensor, configured to generate Ignal and transmit the encoded signal, a quartz resonator, a microcontroller with an RFID path and a three-axis electronic bracelet position sensor. Sensors for monitoring unauthorized removal and opening of the case and the belt integrity sensor are an electronic integrity control system. In this case, the belt is made with closed collet detachable contacts and metal embedded plates inside to increase the strength of connection with the EB housing, and electrical contacts built into the housing to close the belt and create a closed conductor-loop circuit, with two studs on each side belt with holes made underneath in the base of the case; the belt is fastened with studs and reusable stainless steel nuts of a special shape, the twisting and unscrewing of which can only be done with a special tool. The attachment points are protected by disposable plastic caps-seals with individual numbers, which can be applied, for example, by laser engraving, and the opening of which leads to their destruction. In this case, the seal cover is flush with the bracelet, preventing the accumulation of dirt. In addition, the belt has increased mechanical properties for tensile strength due to the use of two printed conductors on a flexible polymer base instead of a single conductor of circular cross section.

The design of the utility model can be illustrated using the following figures:

- FIG. 1 - General view of the EB;

- FIG. 2 - Top view of the EB;

- FIG. 3 - Side view of the electronic housing without a belt;

- FIG. 4 - Printed conductor and the appearance of the belt;

- FIG. 5 - The sequence of assembly of electronic devices;

- FIG. 6 - Functional diagram of the electronic part of the electronic circuit;

- FIG. 7 - The final stage of assembly of EB, axonometry;

- FIG. 8 - General view of a special nut;

- FIG. 9 - General view of a special tool (screwdriver).

In graphic materials, the structural elements of the electronic bracelet of the monitoring system of controlled persons are indicated by the following positions:

1 - housing;

2 - cover;

3 - belt;

4 - cover-seal;

5 - contact;

6 - printed conductor;

7 - collet contact;

8 - hairpin;

9 - special nut;

10 - seat;

11 - electronic control board;

12 - collet contact;

13 - mortgage;

14 - autonomous power source;

15 - a microcontroller with a radio transmitter and a temperature sensor;

16 - quartz resonator;

17 - belt integrity sensor;

18 - sensor control tampering;

19 - three-axis position sensor of the electronic bracelet;

20 - microcontroller with RFTD path;

The EB contains: a sealed polymer case (1) (Fig. 1), a cover (2) (Fig. 1), a polymer (elastic) belt (3) (Fig. 1) with a belt integrity sensor (17) (Fig. 6) , 2 caps-seals (4) (Fig. 2), 4 nuts (9) (Fig. 5).

Tearing or removing the belt triggers the sensor (17) (Fig. 6) and generates a message on the server of the electronic monitoring system of controlled persons (SEMPL).

The belt (3) in its design has a special bend, which provides a more snug fit of the EB to the ankle of the controlled person, which makes it comfortable to wear (Fig. 1).

In a sealed polymer case (1) are located:

- a microcontroller with a radio transmitter and a temperature sensor (Fig. 6);

- quartz resonator (Fig. 6);

- microcontroller with RFTD path (Fig. 6);

- three-axis position sensor of the electronic bracelet (Fig. 6);

- an unauthorized tamper evident sensor, which is a micro switch (pos. 18, Fig. 6), which is activated when the contacts break;

- autonomous power source (Fig. 6).

Inside the belt (3) there is a substrate with two specialized printed conductors (6) located on it (Fig. 4), equipped with collet contacts (7) (Fig. 4). The belt (3) is connected to the case (1) of the bracelet. For the convenience of fastening the belt (3) to the housing (1) of the electronic module, two studs (8) (Fig. 4) are provided on each side of the belt (3), which are mounted on metal embedded (13) (Fig. 5) to increase the strength of the connection with EB housing. Counter studs are provided for the studs (8) in the housing. For fastening the belt to the EB case, special reusable nuts (9) are used (the special nature of the nuts is determined by their shape - they have three recesses located on the sides of the nut (Fig. 8), for example, stainless steel (Fig. 5) allowing them to be unscrewed using a special screwdriver (Fig. 9). The EC is equipped with an integrity monitoring system including a belt integrity sensor (17) (Fig. 6), which is a chain consisting of collet contacts for locking the belt (5) (Fig. 3) and two flexible polymer-based printed conductors (6) ( Ig. 4), and an unauthorized tamper-evident sensor (microswitch) (18) (Fig. 5, 6). To create a closed conductor-loop circuit, four contacts are integrated in the housing (5) (Fig. 3). The contacts (5) are made of nickel-plated wire.The contacts (5) are connected to the control board (11) (Fig. 5).

The attachment points of the belt (3) in the housing (1) of the electronic module are protected by a common seal cover (4) (Fig. 2), the opening of which leads to its destruction.

Each seal cover (4) is flush with the bracelet and marked with an individual non-repeating number made by laser engraving.

An electronic circuit uses an RFTD path with an operating frequency of 125 kHz using the HITAG2 cryptography algorithm. The presence of the RFID path increases the reliability of the electronic components, namely, it allows you to change the configuration without removing the electronic modules, change the software (software) of the electronic modules without opening the case, provides high cryptographic stability (software) of the electronic modules, does not require access to contacts to remove the “Alarm” signal, does not require ensuring the corrosion resistance of contacts.

In FIG. 5 shows the sequence of assembly of the EB, which includes the following steps:

1) combine the base of the housing (1) with the soldered control board (11) with the cover (2) until it stops, check the tightness of the fit by hand;

2) perform ultrasonic welding of the cover (2) with the base of the body (1) of the electronic bracelet;

3) check the tightness of the weld by the method of hydraulic testing.

The final assembly is carried out by the employee at the place on the controlled person (Fig. 7). In this case, an EB is installed on the ankle of a controlled person:

1) measure the circumference of the ankle of a controlled person using a tape measure or a tailor centimeter;

2) choose a belt of the required size from the delivery;

3) install one end of the belt (3) in the seat (10) (Fig. 5) on the housing (1) EB on one side;

4) nuts of a special form (9) from the delivery set are screwed onto the protruding part of each stud (8) with a special tool - a screwdriver (Fig. (9)). A magnet is installed in the screwdriver to hold the nut when it is screwed on;

5) close the seat (10) with the seal cover (4), and snap the seal cover (4);

6) put EB on the ankle of a controlled person and fasten the belt 3 on the other hand according to the above points 3), 4), 5);

8) check how the EB is worn. Make sure that the EB is firmly fixed, but it does not cause discomfort to the person under control. EB works as follows.

In the initial state, the bracelet does not emit signals over the air. To transfer the radio telegrams to the radiation mode, it is necessary to send the appropriate command through the RFID path. After turning on the radiation, you can adjust the range of the bracelet, through the RFID path the bracelet is transferred to a special mode, in which it is convenient to adjust the sensitivity of the receiving path of the control device (KU). It is also possible to adjust the radiation power level of the EB, which leads to a saving in the charge of an autonomous power source with a decrease in power.

After activation, the EB continuously emits signals on the control unit via a radio channel. The radio signal contains a permanent tag protected from counterfeiting, including:

- individual unique identification number of electronic books;

- information about the condition of the housing, the integrity of the belt and its fastening;

- information about the absence / presence of hacking of the housing and / or belt;

- information on the state (voltage value) of an autonomous power source;

- information on the duration of the EB in the on state;

- information on the movement / lack of movement of the electronic device;

- information about restarting the EB program.

An electronic signal transmits a radio frequency signal containing messages that include information about the electronic state (current voltage of an autonomous power source, crystal temperature of a radio transmitter), its individual identification number, and the following alarm statuses:

- violation of the integrity of the EB belt;

- violation of the integrity of the electronic housing;

- discharge of an autonomous power supply of electronic devices;

- information about the movement / lack of movement of a controlled person with a worn EB;

- restarting the electronic program.

The EB transmits information about a decrease in the voltage of the power source below the permissible level at least 72 hours before it is turned off.

To save battery power, the autonomous power supply provides for the possibility of transferring the EB to a mode in which it does not emit a radio signal during the period when the EB is not used on a controlled person.

If the controlled person is absent in the specified zone for a certain time, the control unit detects the absence of an electronic signal and transmits information about the event to the server. The data is analyzed on the SEMPL server, the alarm level is determined, and further actions are formed according to the service regulations.

EB does not cause false positives of devices that control unauthorized removal of goods in stores.

EB has the following operating modes:

1) “Off” (sleep mode) - a mode in which the electronic power supply is not used, the electronic transmission system does not transmit any data, the autonomous power supply is almost not used;

2) “On” (active mode) - in this mode, the electronic control unit controls the movement of the controlled person and regularly transmits signals with information to the control unit;

3) “Test” - the EB mode used during initial installation in the zone of control of movement of a controlled person. In this mode, the power of the EB signal is calibrated. This allows you to correctly configure the boundaries of the controlled movement zone and configure the reception of radio signals in the control unit. If the EB is in the “Test” mode, then the control unit does not save any events about the movement of the controlled person. In the "Test" mode, the EB transmits a signal every (3-5) s. The “Test” mode lasts for 10 minutes, then the EB automatically switches to the “Off” mode. In the "Test" mode, if the control unit is also in the "Test" mode, it will emit sound signals that confirm the reception of signals from the electronic control unit.

Rupture or removal of the belt leads to the operation of the sensor (Fig. 6) and the generation of a message on the server of the electronic monitoring system of controlled persons (SEMPL).

This warning is shown in the SAMPL software as a warning of the highest or critical level.

The utility model allows to achieve a higher level of EB reliability, providing a strong and reliable fastening due to two printed conductors of increased strength, and the use of steel embedded elements with studs in the places of fastening of the belt, the reliability of electrical contact due to the material of the printed conductors and collet contacts for closing the belt, at the same time it allows you to expand the functionality and provides reliable protection against unauthorized remote interference in the data transmission channel from B to the control device, contains fewer parts (in particular, in the claimed utility model, only 2 seal caps are disposable, and in the compared model, there are 4 screws and 4 plastic caps that are put on the screw heads, including interchangeable ones, to be destruction upon authorized removal).

The present utility model is new, industrially applicable. Its implementation is carried out on a modern elemental base and is designed to use remote access networks and RFTD technology, which today are well-established tools.

Claims (4)

1. An electronic bracelet of an electronic monitoring system of controlled persons, comprising a sealed polymer case, a tamper evident sensor, means for attaching the case to the body in the form of an elastic polymer belt with a sensor for monitoring its integrity, while two printed conductors are located in the belt on one substrate, the fastening is carried out in the form of a closed collet detachable connection and metal embedded plates inside the belt, and electrical contacts built into the housing, providing forcing the belt and creating a closed conductor-loop circuit, with each end side of the belt containing two studs, and the base of the housing correspondingly facing holes for them, connected to an autonomous power source, a microcontroller with a temperature sensor, configured to generate and transmit encoded signal, quartz resonator, microcontroller with RFID path and three-axis electronic bracelet position sensor. 2. The bracelet according to claim 1, characterized in that reusable nuts are used in the fastening of the belt in addition to the studs, which, after twisting, are closed with disposable plastic caps-seals. 3. The bracelet according to claim 2, characterized in that the disposable plastic cover seals are configured to fit flush with the bracelet and with individual markings applied by laser engraving. 4. The bracelet according to claim 1, characterized in that the elastic belt is made of a hypoallergenic polymer.

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