MacKay Guardian SOLO, Руководство по эксплуатации и обслуживанию

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MacKay Guardian™ Solo
Operation and Maintenance Guide, v. 1.5
6. MacKay Guardian™ Solo: “How does it work?”
This section describes the basic coin and card operation of the MacKay Guardian™ Solo meter,
use of the Smart Card Interface (SCI) and the meter’s display sequence following reset (Lamp
Test).
6.1 Coin Operation
The SmartChute™ coin discriminator (coin chute) uses patented sensor technology. The term
"SmartChute" is derived from the fact that coin discriminator is managed by the main board
microprocessor. There are actually three inductive sense coils in the
SmartChute coin
discriminator assembly, in addition to an optical sensor pair that is used to detect non-metallic
jams in the upper part of the chute. The upper most sense coil is used to detect and signal that a
coin is passing through the chute, while the remaining two sense coils provide a series of
distinctive signatures that are captured and converted to a digital form. The series of captured
signatures are usually unique for a given metallic object. Since both the US and Canadian Mints
will usually control (within specified limits) the weight/metal content of each coin type, the
insertion of identical coins will give approximately the same series of distinctive signatures. The
SmartChute coin discriminator will provide a series of measured signatures from an inserted coin
and the meter will compare those signatures with a table of known valid coins. When a match is
found in the table, meter time is awarded to the user based on the value of the coin and the
current rate structure. Otherwise, the coin is considered invalid, recorded as such, but no time
awarded.
The Solo operates in the following manner when a coin is inserted:
All inserted coins pass down a common coin path, through the same coin slot. In the brief time it
takes the coin to travel through the coin slot and exit out the bottom of the coin chute, the meter
has activated its electronic circuits and analyzed the coin. For all metal objects inserted, the
meter completes a number of measurements on the object using MacKay’s patented coin
discrimination technology. The measurements of the inserted coin are compared with known
values of valid coins in a look-up table stored in the meter. Based on proper matching within the
table the coin is determined to be valid or invalid.
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