We would like an automated system that is extremely user friendly and will allow for efficient transactions. Access to personal help would be available right at the pumps (preferably through an intercom type system).

• Usefulness of an intercom system at an unmanned gas station ??
• Maybe a help button can buzz a central dispatch ?
• Are there clerks at the stations ?

Step by step instructions would be visible on signs on or near the pumps. Text and graphics should be incorporated in this sign in a way that makes it easy to read and understand. This system is intended to run at maximum capacity 24 hours a day seven days a week, therefore efficiency and convenience is a top priority. However, it must meet all relevant CSA standards.

• Completely automated ?
• Relevancy of CSA standards in relation to project assigned and what can actually be done with software ??

A credit card would be inserted (not swiped) to start the transaction. Any major credit cards would be accepted including our own Petro 451 card and Interac debit cards. For the rest of this document we will take the phrase "credit card" to mean any of these things, and "creditor" to mean the bank or credit card company (or our credit office) whom we will be billing for the purchases.

• Operate card handling like a bank machine ?

Upon insertion of the credit card the machine would verify that the credit/debit card is valid by contacting the appropriate creditor and sending the information on the card. If the card is Interac, the user should be prompted to enter the PIN number as soon as the creditor has been contacted.

• If the card is a bank card then prompt for pin number
• Need some form of input for the user ??
• Suggestions ?

The creditor will respond in one of the following ways:

• The card is fraudulent (i.e. fake, lost or stolen).
• The card has expired.
• The PIN number is incorrect (Interac only - allow three tries).
• The card is good.

The following conditions must all be met in order for the sale to proceed:

• The card has not been reported stolen nor lost nor fake.
• The card is still valid (i.e. not expired).
• If it is an Interac card, the PIN entered by the customer must be correct (allow three tries).

If the card is not authorized then follow procedures laid out by each individual card company, including a mechanism for keeping stolen cards. Ensure that the machine can always resume operation after any errors other than an emergency.

Once credit has been authorized:

• As we understand it here are the steps for filling a vehicle :

Prompt the customer for the type of gas they want (i.e., Regular, Mid-grade, Premium or Diesel).

There should be an easy way for the customers to see the prices of all the different types of gas before they select one and start pumping.

Prompt the customer for the amount of gas they would like to purchase. For example, $5/$10/$20/Fill/Manual Control. The creditor will provide a maximum withdrawal amount, and the gas flow will automatically shut off (with a polite message displayed) if that amount is reached.

Once the selections are made, and if funds are available, the gas pump will be enabled and the customer can fill their tank.

While the gas is being pumped, the pump should display (in real time) the quantity pumped and the total accumulated charge so far. It should also display the type and price of the gas being pumped, and the tax rate.

After the nozzle has been returned to the holster the total purchase will be summed. A receipt will be printed for the customer as well as a hard copy stored in the machine, and an electronic record will be kept for the automatic accounting procedures outlined in Section 3.

The printed receipts would include:

• Time stamp (The time and date of purchase).
• Gasoline type, amount and price.
• Location information (Company name, station number and location, pump number etc).
• A polite note of thanks.
• Specific to this project, we can really only keep the electronic form.
• We can however simulate the printing on screen if you like

The card and a receipt would be returned in a pleasant manner using society norms.

• Does this occur after the nozzle has been returned to it's holster or after the debit has actually been made and confirmation sent back from creditor, or both ?

The following list of operations can be completed from head office via a remote link to each of the automated gas stations at any time. The methods used should be reliable enough that the changes and status checks for all the automated gas stations in the area could (but not necessarily will) be carried out by a batch process at the central office.

1) Sales

• Change the fuel price on the street sign.
• We feel that this requirement is not feasible
• Change the fuel price at each individual fuel pump or all at once.
• How do you want the setup of the pumps to be handled??
• Do you want control of a single pump or many pumps at once ?
• Check fuel levels in each individual storage tank.
• Probably easier to check number of liters sold ?
• Change the maximum sales amount per transaction.
• Generate and transmit a sales report on demand (see Section 3).

2) Safety

• Shutdown and activation of specific pumps.
• We feel this is unreasonable
• Emergency shutdown of entire gas station.
• Manual shutdown at station automatically notifies head office.
• Fire alarm notifies fire station immediately, and head office as soon as the communication line becomes available.

3) Maintenance

• This as well is very questionable
• Pump diagnostic check, including:
• Calibration.
• Flow rate.
• Communications test.
• Pump status -- on/off etc.
• Water in tank check.
• Low fuel in tank alarm informs head office ASAP.

Underground storage tanks are filled as follows:

1. The delivery person unlocks the tanks with a special access card and PIN at any pump. Also, the head office can remotely lock and unlock the tanks.
2. After filling the tank, the deliverer enters the quantity unloaded. His/her special card is returned and the tank locks automatically.
3. The station system records the information entered along with its own measurements of the quantities of gas delivered, and includes this information in the next report (see Section 3).

• Is this a separate machine that handles this ?? or Handle at a specific type of gas pump ?
• Could create an administrative card, display simulated statistics

As a safety feature, the pumps should automatically shut off gas flow after either
a) The nozzle has been out of the holster too long, or
b) More gas has been pumped that is required to fill the largest common gas tanks.
Both these limits would be programmable and typically higher for diesel.

• Both these are not sensible in that it is not reasonable to assume anything about your clients gas tanks

Each automated gas station will keep records of all events and report them electronically to the central office, at preset times by default but also upon demand. The preset times must be programmable to allow for busy locations to be set to make more frequent reports.

• Again the remote communications part is questionable

A backup of each report should be saved at the station for a week as a temporary safeguard.

If gas is being delivered or sold while the report is being generated, that transaction will appear on the next report.

The central office computer will handle printing the reports and generating monthly summaries and other sales statistics. For simplicity, assume that this central office computer system is already in operation.

The station reports sent to the office must contain the following information:

• The time period covered by the report (i.e., "from-to" times and dates).
• Itemized list of sales transactions. Each transaction-line must show:
• Type and quantity of gas purchased.
• Price per liter at the time of purchase.
• Tax amount charged.
• Date and time of purchase.
• Customer name (This is read from the credit card).
• Credit card type and account number.
• Itemized list of deliveries (if any), showing the date & time, types of gas, and quantities delivered (both measured and claimed by the delivery person).
• Again, we need clarification about this from above
• The current station statistics (for verification purposes):
• Current prices for each type of gas.
• Currently programmed tax rate.
• Quantities of gas in each storage tank.
• A list of credit cards identified as lost/stolen, and the action taken (i.e., return the card to the customer or keep it).

This report should be in a format both human- and computer-readable. i.e., a text file with a simple and consistent format. The name of each field should either be printed in the file or provided on a reference sheet in the user manual.

• This rest of this reporting section should not be a problem

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Prepared by Supplier Group 11 in Conjunction with .

Carey Bingham Last Updated 01/17/97. E-Mail : bingham@cpsc.ucalgary.ca