Patrolmen checking system

Checking the patrolmen if they are doing their rounds is extremely difficult. You can employ supervisors, but they are also men, therefore they can be bribed or they can make mistakes. Checking border guards and other patrolmen who work in the open is even more difficult.

Our patrolmen checking system has three components. The checkpoint is small cylinder (about Ø13x30mm) that can be glued into a hole in a wall or in a tree. The checker unit is a slightly larger black box (about 60x80x20mm), and carried by the patrolmen. It records the time and the checkpoint numbers. The reader unit is even bigger, mains powered via standard wall adaptor, and has several functions. It reads data from checker units, recharges them contactlessly, sets the date and time, prints the data, and optionally sends the data to a PC.

When the checker unit is put close (about 20mm) to the checkpoint it reads its number contactlessly and records it and the time. The checker unit can read about 1000 checkpoints without recharging. At the end of the day (or week) the checker unit is placed on top of the reader, the data is transferred to the reader, and the battery of the checker unit is recharged. The reader can operate independently and can send the data directly to a printer, or can be connected to a PC. It would be easier to use a PC all the time, store and print data on the PC but it may compromise security and the PC may not withstand the harsh environment where the reader operates.

As it is obvious that the patrolmen has no interest in using the system, they will try to prove that it is unreliable. If the unit is visibly damaged, it is easy to blame the patrolmen. The checker unit must be extremely rigid to withstand every effort to damage it that leaves no visible sign. Submerging into water, putting it into a freezer, dropping it, or applying high voltage to its terminals (if any) are just a few ideas that might come into the mind of a patrolman on his long shifts, especially after he has forgotten to make his rounds.

The checkpoint and the checker unit of the system are of extremely rigid construction. They have no terminals. They operating from -40 to +70°C. They can not only withstand water, but work under water. The only way to destroy them is to put them into fire, or break apart with a hammer. And in most cases even after the checker unit is destroyed, the contents of the memory can be recovered.

This is an entirely new idea addressing a problem for which no real solution have existed before. I recommend you to offer it to your customers for a much higher price. I think a security manager who has problems with their patrolmen would pay anything to have it.

Design charges:

Full design charge

€ 20000

Design times:

Unit prices:

Checkpoint	€ 10
Checker unit	€ 90
Reader unit (not including power supply and printer)	€ 150
PC link cable	€ 8

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