Device for the prevention of stealing of car
Complex has been based on the microprocessor Atmel AT89C2051
Unblocking hidden key or reed the contact with the activation magnet. Usage of the hidden reed the contact expanded of possible place for the hide and completely eliminates the possibility that the systematic review inside found the contact for the deactivation. Usage keys instead of the push button also increase the safety. Push button has only two positions, while presses keys can characterize the length, the number impulse, in the beginning activations also the combination (e.g. the Morse code alphabet). For the unblock can will use and existing switch for some device (the switch of heater of back glass, contact stop bright, contact of indicator handbrakes or sl.)
Unblocking lasts to a few minute after the loss of contact - alarm during the passing break of contact remains inactive - very useful, if e.g. the machine went out during motions on the traffic light.
Unblocking lasts only for the one ride. Extinguishing of contact, alarm becomes after a few minute automatically active also necessary is not performed the no action in order to the car again protects himself.
Possibility of deactivations of alarms that does have not the protective function on more the day - the useful function at giving of car on the service. after the expiry couple of days the alarm has been again active (the condition that does not separate the accumulator).
The output relay simulates the problem with coming on - machine on moment extinguishes, and then completely turn off. Duration simulations and quantities interrupts is not invariable, but has the accidental character. As necessary, controls of usability of cars was able transfers on the control of power supply of electric petrol dispenser (when this simple).
Car is not completely are incapacitated, and the error happened when the car already start and will move with the car park. Thus of possible thief expose to attention (often happens extinguishing of car which be like as if the man learns will drive) and put on the additional temptation. That is, difficultly that the stealer will decide on the additional loss times in order to find and disable the alarm.
Complex does not use the permanent power supply with the accumulator, besides when has been deactivated and a few minute after the loss of contact.
Built-in wachdog reset the processor in the event of the fail software loops. Unblocking then skips the automatic check of contents of memory.
Complex can order with the algorithm written according to Your individual request. This carries off in a way the unblok (number squeezings push button, lengths of squeezings push button,...), way of disabling (e.g. extinguishing petrol dispensers, extinguishing ignition, extinguishing of valve for feeder the petrol or the gas,...), additional function input and output, etc.
power supply: 12V
entries: contact, push button (+12V)
output: npn the type against the mass maxes. 1A two channel
dimensions boxes (L * W * H): 100 * 60 * 30mm (the plastic box)
Price of complex in the box with the in order function: 500 HRK (without the building in)
On Your request can make and alarm complex of different characteristics (e.g. the contactless unblocking,...).
The built-in alarm good works more than the 5 year. Because of the safety only needs avoid the setting up of processors on the pedestal also the usage reed relays for the interruption pickup the signal. Loss of contact may be fatal for driving characteristics (the extinguishing of motor) or can destroy electronic of ignition. Vibrations drive can that destroy reed the contact of relays also was able will happen that the unexpected momentary loss of contact makes the additional damage on electronic ignition.