DE102017010835A1 - Control device for checking electronic ignition systems in the blasting technique - Google Patents

Abstract

It is a control device, in particular for the review of electronic ignition systems in the blasting technology, presented a vehicle or on-site permanently installed ignition system with blasting site connectors having, characterized in that test adapter can be installed, the test adapter have a visual display and the visual display the result a review of the ignition system reproduces.

Description

The invention relates to a control device for checking electronic ignition systems in the blasting technique, in particular Selbstversenkungsanlagen on boats or ships

From the international publication WO 02/42 123 A1 a control device for monitoring the control unit for a restraint system in a motor vehicle is known. It is proposed a control device for a restraint system in a motor vehicle, wherein a safety switch, which also contains a watchdog, in the control unit fulfills the function of a safety switch. The safety switch monitors sensor signals transmitted to the processor of the controller for plausibility and releases only when the safety switch detects a trigger case, corresponding retention means over a time unit for a predetermined time. Based on additional information from the sensor signals, the safety switch extracts how the sensor signals are to be processed. The safety switch is adapted to release retaining means correspondingly associated with the sensors. Upon power up of the controller, the processor performs a safety switch test by generating a test signal through the sensors.

Next is from the patent DE 37 06 765 C2 an impact sensor for a vehicle with a test circuit known. Disclosed has been an impact sensor for a vehicle, which is arranged in a sensor housing and causes the impact of the vehicle on an obstacle, the triggering of a passive safety device, for. B. the inflation of a gas cushion or the tightening of a safety belt, and in the sensor housing an acceleration sensor, an evaluation circuit for the electrical output signals, a trigger circuit for triggering the passive safety device in an impact and a test circuit for checking the functionality of the impact sensor, said test circuit during the operation of the motor vehicle on the acceleration sensor acting physical variables, in particular acoustic vibrations, evaluates and compares with comparative values, characterized in that in the sensor housing connected to this an electro-acoustic transducer is provided which sonicates the acceleration sensor in a review and in addition to the sensor housing with the acceleration sensor is acoustically coupled.

The disadvantage of many ignition systems in blasting, in particular central ignition systems for self-subsidence on ships, is that corresponding sensors, switches and algorithms are not implemented. The advantageous developments are therefore not transferable. Next arises in the previously existing function control a certain risk to personnel through the handling of ammunition and bursting Prüfkapselteilen, as well as a burden of bang noise.

The object of the invention is therefore to propose a control device for checking electronic ignition systems in the blasting technique, in particular self-immersion systems on boats or ships, which ensures a minimization of personal injury and a more effective functional check by testing the actual ignition energy of the ignition system.

This object is solved by the characterizing features of the main claim. Advantageous embodiments are disclosed in the subclaims.

The advantage of the invention is, in particular, that test adapters according to the invention are used instead of the known primers for checking the ignition system self-subsidence. The test adapters have a visual display that represents several functional states of the test adapter. For example, a green LED for the functional readiness of the test adapter lights up, a red LED for the presence of sufficient ignition energy during ignition of the ignition system.

An advantageous embodiment is shown in dependent claim 2. The advantage of a test of the ignition system via a voltage measurement is that all test adapters are simultaneously applied in parallel with the ignition energy of the ignition system to be tested. Here, the stored energy of the ignition capacitor is distributed to all test capacitors. Parallel to the compensation process, a voltage divider begins to discharge the test capacitor. During the compensation (charging) process, the voltage in the test capacitor must exceed a minimum value in order to cause the resistor to drop enough voltage to briefly switch the LED display.

On the one hand, it is advantageously tested whether the capacitance of the ignition capacitor is too low due to a defect or due to aging. Then, due to the low energy, the voltage in the test capacitor would cause no response to the LED display.

On the other hand, it is checked whether the ignition voltage of the generator fails too low due to a defect or due to aging. Then the Equalization voltage in the test capacitor also cause no reaction of the LED display.

Finally, the simultaneous discharge additionally ensures that excessive contact resistance in the ignition system is detected. If the resistances of the ignition system are too high, sufficient charging of the test capacitors is no longer possible.

Another advantage is described in dependent claim 3. The fleet service boats of the Navy have a central ignition ship for self-lowering of the boats in case of need. The ignition system consists of a special ignition engine as well as six sprayers installed in different places on the boat.

According to the regulation "Special Instructions for Naval Weapons No. 8/72", the central ignition self-submergence of test boats is to be subject to a functional test at regular intervals.

The control device according to the invention makes it possible to test without implementing further ships fixed mounted sensors while reducing the risk to the staff and easy handling of the control device.

For a better understanding of the control device for checking Selbstversenkungsanlagen the following embodiment is described:

A total of 6 Test adapter (wiring diagram according to 1 ) are placed over the plug at the existing blasting points in the ship MIL1 adapted and then each with the main switch ( S1 ) is activated. After switching on the green LED ( LED2 ), where the resistance ( R3 ) is needed exclusively as a resistor for the LED. The green LED signals the user that the test adapter is ready for operation. If the green LED does not light up, either the battery is discharged or the test adapter has a defect. After successful confirmation of the operational readiness of all connected test adapters, these are connected via the blasting site plug MIL1 at the same time as the ignition energy of the ignition system to be tested. The incoming ignition voltage is in all test adapters via a series resistor ( R1 ) for the defined current reduction and a bridge rectifier ( Br1 ) for protection against reverse polarity in the test capacitor ( C2 ) balanced. Here, the stored energy of the ignition capacitor is distributed to all six test capacitors. Parallel to the equalization process, the discharge of the test capacitor is started via a voltage divider (R4 to R4 + R5 + R6). During the equalize (charge) process, the voltage in the test capacitor must exceed a minimum value to match the resistance R4 a sufficient voltage drop for short-term switching of the optocoupler ( Opto1 ) to effect. Test criterion ( 1 ): Should the capacity of the ignition capacitor be too low due to a defect or due to aging, the voltage in the test capacitor would cause no reaction at the optocoupler due to the low energy. Test criterion ( 2 ): Should the ignition voltage of the generator be too low due to a defect or due to aging, the compensation voltage in the test capacitor would also cause no reaction of the optocoupler. The simultaneous discharge additionally ensures that too high contact resistances are detected in the ignition system. If the resistances of the ignition system are too high, sufficient charging of the test capacitors is no longer possible. With the temporary activation of the optocoupler, the relay ( rel1 ) and the self-holding capacitor ( C1 ) in parallel with the 9V battery of the system. In this case, the self-holding capacitor is almost completely charged due to low series resistances and the inertia of the relay. During the subsequent switching operation, the relay contacts temporarily disconnect the battery from the coil of the relay. The self-holding capacitor buffers the coil voltage for this time and the relay is switched. After switching, the relay remains in self-holding mode until the system is deactivated. In this case, the coil of the relay is powered by its own switched contact with voltage from the battery. During the process, the voltage in the test capacitor is discharged via the voltage divider, thus the optocoupler disconnects the connection, whereby the relay remains activated via the self-holding mode and in parallel via the red LED ( LED1 ) the. Report to the user that sufficient ignition energy was available. The feedback on the red LED as well as the self-holding of the relay is reset when the test system is deactivated. The system is ready for use again by switching on the test adapter again.

It shows the only one 1 a circuit diagram of a control device according to the invention for checking Selbstversenkungsanlagen, as described in the embodiment.

LIST OF REFERENCE NUMBERS

BR1

rectifier

C1

capacitor 1

C2

capacitor 2

Opto1

Optocoupler 1 ,

R1

resistance 1

R2

resistance 2

R3

resistance 3

R4

resistance 4

R5

resistance 5

R6

resistance 6

Rel 1

relay 1

X1

supply battery

X2

counter

X3

Red LED

X4

LED green

X5

connector

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 02/42123 A1 [0002]
• DE 3706765 C2 [0003]

Claims (3)

Control device, in particular for the verification of electronic ignition systems in the blasting, a vehicle or on-site permanently installed ignition system with blasting site plugs exhibiting, characterized in that - test adapter can be installed, - the test adapter have a visual display and - the visual display is the result of a review the ignition system reproduces. Control device after Claim 1 , characterized in that the verification of the ignition system via a voltage measurement. Control device according to one of Claims 1 and 2 characterized in that the control device for Selbstversenkungsanlagen is usable on ships.

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