RU230347U1 - Executive radio device for remote activation of the igniter of charges - Google Patents

Abstract

The utility model relates to the field of remote initiation of an explosion and concerns an executive radio device for remote activation of a charge igniter. The executive radio device comprises a power element and a printed circuit board located in a housing, on which a control unit, a contactless data transmission unit, an output signal generation unit and a programmable radio frequency decoder are mounted, which is configured to receive a control signal via a radio channel on the main and backup frequencies from an external active device and then transmit the control signal to the control unit for subsequent generation of a signal for feeding an output pulse to the output signal generation unit. In this case, the contactless data transmission unit is configured to exchange data with the external active device in order to receive and store in non-volatile memory information about the main and backup frequencies, and the control unit is configured to control the reception of the control signal alternately on the main and backup frequencies. The technical result consists in increasing the resistance of the device to the effects of interference of an intentional nature. 3 clauses, 2 figs.

Description

The field of technology to which the utility model relates

The utility model relates to devices for remote initiation of an explosion, designed to receive a control signal via a radio channel and generate an output electrical signal, and can be used to design radio control lines for remote activation of igniters of fireworks charges, smoke bombs, as well as electric detonators according to GOST 9089-75.

State of the art

The PD710.2 executive device of the PD-710 radio line is known: (PD710 Complex Operating Manual UIYAD.464419.003 RE (Omsk: JSC ONIIP, 2008. - 65 p.), which functions together with the PD710.1 command and transmitting device.

To transmit information about the parameters of the command-transmitting device PD710.2 to the executive device PD710.1, the safety key of the PD710.2 device is used. The disadvantage of the analog is the presence of mechanical contacts in the PD710.1 and PD710.2 devices, which are activated by this key.

The closest in technical essence to the claimed device is the actuator described in patent No. RU 2790057 (IPC F42B 3/10, published on 14.02.2023), which includes a radio-frequency non-volatile information carrier connected in parallel with the decoding device of the actuator, the non-rewritable section of the memory of which contains information about the control code and its operating frequency. And in the body of the command-transmitting device, a matching device is installed, connected in parallel with the command device and the radio transmitting device of the command-transmitting device, with the ability to record the control codes of the command-transmitting device in the memory of the radio-frequency non-volatile information carrier of the actuator.

The disadvantages of the known device are the ability to transmit information from the command-transmitting device to the actuator only in terms of control codes with an unchanged operating frequency of the radio line, which increases the risk of deliberate interference in the control of the detonation, and this is unacceptable.

Disclosure of the essence of the utility model

When creating a utility model, the problem of improving the executive radio device for remote activation of the charge igniter is solved, based on improving its operational characteristics.

The technical result is an improvement in operational characteristics by increasing resistance to the effects of intentional interference.

The technical result is achieved due to the fact that the executive radio device (IRD) for remote activation of the charge igniter contains a power element and a printed circuit board located in a housing, on which a control unit (CU) (5), a contactless data transmission unit (CDTU) (8), an output signal generation unit (OSG) (10) and a programmable radio frequency decoding device (PRDU) (7) are mounted, configured to receive a control signal from an external active device via a radio channel and subsequently transmit the control signal to the CU (5), including a microcontroller and configured to receive a control signal from the PRDU (7) and generate a signal for supplying an output pulse to the CDTU (10). According to the utility model, the CDTU (8) is configured to exchange data with an external active device for receiving and storing in the non-volatile memory of the CDTU (8) information about the main and backup frequencies. The microcontroller contains a program that includes algorithms for controlling the reception of a control signal via a radio channel alternately on the main and backup frequencies.

The contactless data transmission unit is designed with the ability to exchange data with an external active device for the purpose of receiving and storing in the non-volatile memory of the contactless data transmission unit data on the main and backup frequencies, as well as control codes for operation on the main and backup frequencies, and subsequent transmission of the stored data to the control unit.

Thus, the executive radio device allows receiving the control signal alternately on the main and backup frequencies and, if necessary, under the control of an external device, promptly changing the data on the working and backup frequencies in order to eliminate the influence of intentional interference on the control of its operation.

The printed circuit board contains soldered output contacts and a connector for connecting an external antenna, which is brought out to the top wall of the case, while the case is filled with compound.

The executive radio device uses a programmable radio frequency decoder and a contactless data transmission unit to increase resistance to intentional interference.

In addition, to improve the reliability of the IRP operation in harsh operating conditions, the number of detachable connections has been minimized (only one antenna connection connector is used) and the number of mechanical switching elements has been minimized: activation of the executive radio device and connection to the payload are performed using the same output contacts.

A power control unit is mounted on the printed circuit board, designed with the ability to receive from the output signal generation unit a command to switch the output contacts to an active state and to turn on the supply of power voltage to the control unit, the programmable radio frequency decoding device, the contactless data transmission unit, the output signal generation unit, and also to turn off the supply of power voltage from the power element in the event of the output contacts switching to a passive state.

The utility model is illustrated by graphic materials of a specific example of its implementation, where

Fig. 1 shows a general view of the executive radio device (without antenna);

Fig. 2 - structural diagram of the executive radio device.

Abbreviations used in the text:

IRP - executive radio device;

BU - control unit IRP;

BUP - power control unit;

BBPD - contactless data transmission unit;

PRDU - programmable radio frequency decoding device;

BI - indication block;

BFVS - output signal generation unit.

Implementation of a utility model

The executive radio device (IRD) contains a printed circuit board 2 (Fig. 1, 2), a power supply element 3, which provides supply voltage to the IRD, and an external antenna 4, located in a compact housing 1.

The printed circuit board 2 contains the control unit (CU) 5 of the IRP, the power control unit (PUP) 6, the programmable radio frequency decoding device (PRDU) 7, the contactless data transmission unit (CDT) 8, the indication unit (IU) 9, the output signal generation unit (OSG) 10. The printed circuit board also contains the connector 11 for connecting the external antenna 4 and the output contacts 12 intended for connecting the payload and for turning on the IRP. The output contacts 12 are wires for external connections, the free ends of which are stripped and tinned. Any methods of providing contact connections can be used to connect the payload: terminal connectors, clamps, soldering, twisting, crimping, etc.

BU 5 includes a control microcontroller and auxiliary passive elements: capacitors, resistors (not shown). BU 5 ensures the execution of all functions of the IRP and is designed with the possibility of receiving a control signal from the PRDU 7 and subsequent generation of a signal about readiness for operation for BI 9, generation of a signal for supplying an output pulse for BFVS 10.

BUP 6 includes electronic keys built on transistors. BUP 6 is designed with the possibility of receiving from BFVS 10 a signal about the transition to the active state of output contacts 12 and turning on the supply of supply voltage to blocks 5, 7, 8, 10; and turning off the supply of supply voltage from power element 3 in the event of the transition of output contacts 12 to the passive state.

The control unit 7 includes a VHF radio modem with a programmably set carrier frequency, made in the form of a microassembly, and auxiliary passive elements: capacitors, resistors, inductors (not shown). The control unit 7 is made with the possibility of receiving a control signal from an external active wireless data exchange device (for example, from a command-transmitting device) via a radio channel (not shown) through an external antenna 4 and transmitting it to the control unit 5.

The BBPD 8 includes a passive radio frequency identifier microcircuit supporting the NFC contactless data transfer technology, an NFC antenna integrated onto the printed circuit board 2, and auxiliary passive elements: capacitors, resistors, inductors (not shown). The BBPD 8 is designed with the ability to exchange data with an external active device for short-range wireless data exchange, which is part of the command-transmitting device, using NFC technology and, upon a signal from the CU 5, to transmit the parameters of the main and backup frequencies, as well as control codes to the CU 5.

BI 9 includes a two-color LED 13, which has two glow colors - green and red. BI 9 is designed with the ability to indicate the readiness of the IRP according to control signals from BU 5.

BFVS 10 includes a charge accumulator built on capacitors and an electronic output signal generation key built on transistors. BFVS 10 is designed with the ability to accumulate electric charge and generate an output pulse upon command from BU 5.

The housing 1 of the IRP is hermetically sealed with a compound to ensure a high degree of protection against moisture and foreign particles of dust and dirt. Connector 11 for connecting antenna 4 and LED 13 of indicator unit 9 are located on the upper wall of housing 1.

In the initial state, no load is connected to the IRP. BUP 6 blocks the power supply from power element 3 to printed circuit board 2, LED 13 of indicator unit 9 is off.

To turn on the IRP, the useful load is connected to the output contacts 12 in any way that ensures an electrical contact connection - through terminal connectors, clamps, by soldering, twisting, crimping, etc. In the off state, an electrical potential equal to the voltage of power element 3 is present on the output contacts 12.

When the useful load is connected, current flows through the resulting circuit. In accordance with Ohm's law, the potential between output contacts 12 decreases to the value

U = I⋅R,

where R is the input load resistance.

The value of the output current I is limited by the internal elements of the BUP 6, therefore a connection is allowed where R=0.

When the voltage at output contacts 12 is lower than 1V, BUP 6 turns on the power supply to blocks 5, 7, 8, 10.

After turning on the power supply, the microcontroller of the control unit 5 starts up, and the charging of the capacitors in the BFVS 10 also begins.

Microcontroller BU 5 initializes built-in peripheral units 6, 8, 9, 10 and input/output ports, initializes the data exchange interface with the BBPD 8 and reads data on the value of the main and backup frequencies, as well as on control codes from the memory of the BBPD 8, initializes and sets the operating mode of the PRDU 7, measures the voltage of the power supply element 3, turns on the software counter of the wireless data exchange control time and the software counter of the warning time.

BU 5 switches on the PRDU 7 in the command reception mode via the radio channel, which is performed alternately on the main and backup frequencies. This process is controlled programmatically by commands from BU 5.

If all initialization procedures are performed without errors and the voltage on power element 3 is higher than the threshold acceptable for operation, then BU 5 sets the green color of LED 13 BI 9. Otherwise, BU 5 sets the red color of LED 13 BI 9.

After which the IRP switches to the wireless data exchange control mode. BU 5 starts the algorithm for blinking LED 13 BI 9 according to the rule: during the warning time period (e.g. 30 s or 6 min), the blinking frequency of LED 13 increases (e.g. from 0.5 Hz to 5 Hz) proportionally to the warning time period. At the end of the warning time period, LED 13 goes out.

If during the wireless data exchange control time (e.g. 30 s) a request from the command-transmitting device is recorded, then LED 13 BI 9 lights up continuously. Data exchange between the external device and the BBPD 8 is performed under the control of the external device. During the data exchange, the parameters of the operating and backup frequencies, as well as control codes, are transmitted to the IRP and recorded in the non-volatile memory of the BBPD 8. Upon expiration of the wireless data exchange control time, BU 5 switches off the BBPD 8.

When an explosion is initiated, the corresponding signal received from the command-transmitting device is amplified and demodulated in the control unit 7, where a control command is extracted from it. When receiving a command from the control unit 7 to operate, the control unit 5 switches off the control unit 7 and sends a control signal to the control unit 10, which generates an electrical pulse of a specified duration (for example, 50 ms) on the output contacts 12. After the pulse is generated, the control unit 5 goes into sleep mode.

If a shutdown command is received from the control unit 7, the control unit 5 switches off the control unit 7 and goes into sleep mode.

To turn off the IRP, open the output contacts 12. BUP 6 turns off the power supply to the printed circuit board 2, and the LED 13 BI 9 stops glowing.

Thus, thanks to the use of the proposed utility model, the operational characteristics are improved by increasing the stability of the executive radio device to the effects of intentional interference.

Claims (4)

1. An actuator radio device (ARD) for remote activation of a charge igniter, comprising a power element and a printed circuit board located in a housing, on which a control unit (CU) (5), a contactless data transmission unit (CDTU) (8), an output signal generation unit (OSG) (10) and a programmable radio frequency decoding device (PRDU) (7) are mounted, configured to receive a control signal from an external active device via a radio channel and subsequently transmit the control signal to the CU (5), including a microcontroller and configured to receive a control signal from the PRDU (7) and generate a signal to supply an output pulse to the PRF (10), characterized in that the PRF (8) is configured to exchange data with an external active device in order to receive and store in the non-volatile memory of the PRF (8) information about the main and backup frequencies, wherein the microcontroller contains a program including algorithms for controlling the reception of a control signal via a radio channel alternately on main and backup frequencies. 2. An executive radio device according to paragraph 1, characterized in that the BUPD (8) is designed with the ability to exchange data with an external active device for receiving and storing in the non-volatile memory of the BUPD (8) information about control codes, wherein the microcontroller BU (5) contains a program that includes an algorithm for recognizing control codes. 3. An executive radio device according to item 1, characterized in that the printed circuit board contains soldered output contacts and a connector for connecting an external antenna, which is brought out to the upper wall of the housing, while the housing is filled with compound. 4. An executive radio device according to item 3, characterized in that a power control unit (PCU) (6) is mounted on the printed circuit board, configured to receive from the BFVS (10) a signal about the transition to the active state of the output contacts and to turn on the supply of power voltage to the BU (5), PRDU (7), BBPD (8), BFVS (10); as well as to turn off the supply of power voltage from the power element in the event of the transition of the output contacts to the passive state.