JPH1111597A - Unloading controller of tank lorry - Google Patents

Abstract

PROBLEM TO BE SOLVED: To load oil so as to correspond to a different delivery management system. SOLUTION: This tank lorry 5 is provided with an unloading operating disk 54 controlled on unloading oil and an unloading computer 55 storing the oil quantity stored in respective hatches 42a-42g and the kind thereof at an oil storage station in a memory and controlling the operation at the time when unloading the oil in respective hatches 42a-42g. The CPU of the unloading computer 55 discriminates an input means (oil kind plugs of hatches 30a-30E or card reader light 73) in which oil kind data are input on loading it and compares the oil kind data input from oil kind plugs 56, 57 for the delivery openings with oil kind plugs 30a-30g for hatches or oil kind data input from the card reader lights and allows unloading of oil only when the oil kinds coincide with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unloading control device for a tank lorry, and more particularly to an unloading control device for an oil truck loaded on a plurality of hatches to an unloading underground tank based on hatch loading information. The present invention relates to an unloading control device for a tank truck.

[0002]

2. Description of the Related Art In general, as a means for transporting an oil liquid, a method has been adopted in which the oil liquid is loaded on a hatch of a tank truck and delivered to each service station. Tanker trucks are loaded with oil types and quantities ordered from gas stations, etc., at oil depots. At that time, the driver of the tank lorry loads the oil liquid into each hatch based on a slip describing the reserved delivery destination, oil type, quantity, hatch number to be loaded, and the like. And
Upon arriving at the gas station, the driver checks the delivery destination, oil type, quantity, and hatch number indicated on the slip, and also checks the oil type of the underground tank and unloads it to the underground tank at the gas station.

[0003] However, when an oil tank is loaded with an oil liquid in the above-described manner at an oil depot, there is a risk that the driver may mistakenly read the entry on the slip. Therefore, there is a possibility that light oil is loaded on a hatch where gasoline should be loaded, for example, due to human error. in this way,
If another oil type is loaded into the hatch of a tank truck, and unloaded to an underground tank at a gas station without noticing that fact, a different oil type mixing accident (contamination) occurs in the underground tank.

[0004] Therefore, at the oil depot, when shipping the oil liquid to the tank lorry, the shipping situation of the oil liquid is managed for each hatch of the tank lorry in order to load the hatch accurately. This hatch management system manages each shipment data in a host computer and a shipment control device installed in a shipment stage. The loading information loaded on each hatch is stored in a vehicle number card issued for each tank truck.

In this hatch management system, an oil type corresponding to a hatch number of each tank truck is selected from reservation data by a hatch setting device connected to a host computer.
Information such as quantity and delivery destination is assigned to each hatch.
When the driver receives the slip printed by the printer of the hatch setting device, the driver moves the tank truck to the shipping stage.

[0006] In the shipping stage, by reading the vehicle number card into the card reader, reservation data to be loaded on the tank truck is transferred from the host computer to the shipping control device. In the shipping control device, loading is permitted only when the transferred reservation data and the oil type and quantity set by the driver by operating the loading setting device match and match. Therefore, in the shipping control device,
If the reservation data and the oil type and quantity set in the loading setting device do not match, shipment is prohibited.

[0007] Such a hatch management system requires a relatively large capital investment, and is therefore often introduced when an oil depot is newly established. On the other hand, a simple system for storing oil type data in a recording medium at the time of loading of an oil liquid even at an existing oil depot has been developed. This simplified system is a system called an oil type key system. In this oil type key system, the oil type key provided on each loading arm of the shipping stage is connected to the oil type plug provided on each hatch of the tank truck, and the signal from the oil type key is detected to determine the oil type. The data is input to the on-board computer.

Since a resistor corresponding to the oil type is provided inside the oil type key, a voltage corresponding to the oil type is output as an oil type signal when connected to the oil type plug and energized. can do. The hatch management method and the oil type key method are different in a method of storing loading information performed when loading an oil liquid on each hatch of a tank truck. That is, in the case of the above-described hatch management method, the loading information of the hatch is stored in the vehicle number card. In the case of the oil type key system, the loading information of the hatch is stored in the on-vehicle computer.

[0009] After the loading operation of the oil liquid is completed, the tank lorry moves to a delivery destination fueling station. When the tank lorry arrives at the delivery station, the driver checks the type of oil loaded on each hatch from the hatch loading information stored in the vehicle number card or on-board computer. Then, it is confirmed that the oil type of the underground tank is, for example, gasoline by looking at a nameplate provided near the oil filling port of the underground tank.

For example, when unloading gasoline, one end of an unloading hose is connected to a discharge port of a hatch loaded with gasoline, and the other end of the unloading hose is connected to a lubrication port provided in an underground tank for gasoline. Is done. When the connection of the unloading hose is completed, the bottom valve of the hatch of the tank truck is opened. The hatch gasoline is now unloaded into the gas station underground tank.

Hereinafter, the same operation is performed when unloading light oil and kerosene.

[0012]

However, in a conventional unloading control device for a tank truck, hatch loading information is input by either a hatch management method or an oil type key method in accordance with an oil depot system. As a result, the tank location that can be handled by tank lorry equipment is determined by itself. For this reason, for example, one tank truck compatible with the hatch management system
When loading oil liquid to be delivered for the second time after the first delivery, if you try to use an oil tank near the delivery destination, the oil tank can be loaded if the oil type key system is used. Absent. Therefore, the tank truck must move to a hatch management type oil depot away from the area to be delivered next time. For this reason, after returning to the oil depot and loading the oil liquid, the vehicle is moved to the next scheduled delivery area, so that the traveling time of the tank lorry becomes longer and the delivery efficiency is reduced.

Accordingly, an object of the present invention is to provide an unloading control device for a tank lorry which solves the above-mentioned problem.

[0014]

In order to solve the above problems, the present invention has the following features. Claim 1
According to the invention described above, when oil liquid is loaded on a hatch of a tank lorry at an oil depot, information of the oil liquid to be loaded for each hatch is input by an input means at a shipping stage and a tank lorry for managing hatch loading information is provided. The unloading control device has a plurality of the input means, and when loading the oil liquid on each hatch at the oil depot, recognizes whether the loading information is input by any one of the plurality of input means. Input recognition means, storage means for storing loading information for each hatch input from the input means recognized by the input recognition means, hatch information reading means for reading the loading information of the hatch from the storage means, The unloading of the oil liquid loaded on the hatch is permitted based on the loading information of the hatch read by the hatch information reading means. And offloading authorization means and it is characterized in that it comprises an.

Therefore, according to the first aspect of the present invention, when loading the oil liquid on each hatch at the oil depot, it is recognized whether the loading information has been input by one of the plurality of types of input means. In order to allow unloading of the oil liquid loaded on the hatch based on the hatch loading information read by the hatch information reading means, even if the oil liquid is loaded at a different oil depot in the shipping management system, The loading information of the hatch can be stored in the corresponding storage means from the input means corresponding to the shipment management system. Therefore, when unloading the oil liquid loaded on the hatch, it is possible to unload to the tank of the same oil type and to prohibit unloading to the tank of different oil type regardless of the difference of the input means.

According to a second aspect of the present invention, in the unloading control device for a tank truck according to the first aspect, the input means includes a card reader and an oil type key connector. Therefore, according to the second aspect of the present invention, since the input means including the card reader and the oil type key connector is provided, only the oil type key connector is installed in the oil depot where only the card reader is installed. The oil liquid can be easily loaded at the oil tank.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing a schematic configuration of a hatch management system of an oil tank. A hatch management system that manages loading of an oil liquid for each hatch is employed in the oil tank station shown in FIG. This hatch management system
In general, the system comprises a shipping device 1 installed at a shipping site, a hatch setting device 2 installed in an office remote from the shipping site, and a host computer 3 as a shipping management computer.

The hatch setting device 2 and the host computer 3 are installed in an office provided at the entrance of an oil depot. The hatch setting device 2 includes a card reader light 8, a display main body 9, a keyboard 10, a printer 11, a C
PU12 and the like. The shipping device 1 includes a shipping control device 4, a card reader / writer 14, a remote switch box 16 having a hatch card reader, and a grounding device 1.
7, a loading setting device 18 and the like.

The host computer 3 is connected to the shipping control device 4 of the shipping device 1 and the hatch setting device 2. Further, the host computer 3 of the oil depot serves as a terminal device 1 of each gas station, which is a customer, via a public line 13 as described later.
5 is communicably connected. Then, when there are orders (liquid type and quantity) from the gas station via the terminal device 15, the host computer 3 stores these orders in the reservation data file of the storage device 3a as reservation information in the reservation data.

The shipping control device 4 is provided for each shipping stage 7. When the vehicle number card 27 distributed for each tank truck 5 is read by the card reader light 14, the shipping control device 4 requests the host computer 3 for reservation data of the corresponding vehicle number. And
When the reservation data of the corresponding vehicle number is transferred from the host computer 3, the shipment control device 4 controls the shipment so that the liquid type and quantity included in the reservation data are shipped to the tank truck 5.

The tank truck 5 has a tank 6 which is divided into a plurality of hatches, and the capacities of the hatches are different, for example, 1 kiloliter, 2 kiloliters, and 4 kiloliters. When the tank lorry 5 arrives at the shipping stage 7, the liquid type set by the hatch setting device 2 is loaded on each hatch of the tank 6. here,
When the tank truck 5 arrives at the oil depot, the driver passes the vehicle number card 27 issued for each tank truck 5 to the operator of the hatch setting device 2. The operator of the hatch setting device 2 inserts the vehicle number card 27 into the card reader light 8 of the hatch setting device 2 to read the vehicle number code stored in the vehicle number card 27.

The hatch setting device 2 includes a card reader light 8
When the vehicle number code is read from the vehicle number card 27, the reservation data of the corresponding vehicle number is requested to the host computer 3. When reservation data corresponding to the vehicle number is transmitted from the host computer 3 to the hatch setting device 2, the hatch setting device 2 accumulates the data in each hatch of the tank truck 5 based on the reservation information included in the reservation data. Assign the type and quantity of liquid to be filled. Also, hatch setting device 2
The printer 11 issues a slip on which the hatch information is printed with the assigned liquid type and quantity for each hatch.

The loading setting device 18 is used by an operator to set the quantity to be loaded for each shipping point. The loading setting device 18 includes a loading amount setting switch 18a for setting a loading amount, and a start switch 1 for starting shipment.
8b, a stop switch 18c for stopping the shipment is provided. Further, the remote switch box 1 of the present embodiment
6 and the loading setting device 18 are attached to the loading arm 25 in an integrated state.

A storage tank (not shown) in which the oil liquid is stored.
A pump 20, a strainer 21, a flow meter 22, a constant flow valve 23, and a fixed amount valve 24 are provided in a supply pipe 19 connected to the supply pipe 19 for supplying the oil liquid. Further, a loading arm 25 is connected to a leading end of the feed pipe 19. still,
In the shipping stage 7, the loading arm 25
Although only books are shown, a plurality of books are actually provided for each liquid type.

Further, the shipping stage 7 is provided with a reserved amount display 26 for displaying the liquid type to be loaded for each hatch assigned by the hatch setting device 2. Therefore, the operator can operate the loading setting device 18 while viewing the display contents of the reservation amount display device 26. When the start switch 18b is turned on as described later, the shipping control device 4 starts the pump 20 and opens the metering valve 24. Then, the flow rate pulse transmitter 22a of the flow meter 22
When the flow rate set by the loading amount setting switch 18a is shipped, the fixed quantity valve 24 is closed.

FIG. 2 is a flowchart of a process executed by the CPU 12 of the hatch setting device 2. Hatch setting device 2 C
The PU 12 reads the vehicle number data stored in the vehicle number card 27 inserted in the card reader light 8 of the hatch setting device 2 in step S11 (hereinafter, “step” is omitted). In the next S12, the host computer 3 is requested to make reservation data corresponding to the vehicle number data read from the vehicle number card 27.

On the other hand, the host computer 3 transmits reservation data corresponding to the vehicle number data to the hatch setting device 2. In S23, the CPU 12 of the hatch setting device 2 checks whether or not the reservation data has been received. When the reservation data is received, the process proceeds to S14. S1
In step 4, based on the reservation data, a hatch assignment process for the oil liquid loaded on the tank truck 5 is executed. After the hatch assigning process, the process proceeds to S15, where the hatch loading data (hatch number, oil type, quantity, etc.) is stored in the car number card 27 inserted in the card reader light 14.

Subsequently, in S16, a slip containing hatch loading information (hatch number, oil type, quantity, etc.) for each hatch obtained by the hatch assignment process is issued. The driver of the tank lorry vehicle 5 can use this slip and vehicle number card 2
7 and moves to the shipping stage 7. FIG. 3 is a flowchart for explaining the processing executed by the shipping control device 4.

When the driver of the tank truck 5 arrives at the shipping stage 7, the driver first inserts the vehicle number card 27 into the card reader light 14 of the shipping stage 7. In step S21, the shipping control device 4 controls the card reader / write 1
Then, the vehicle number data stored in the vehicle number card 27 inserted in No. 4 is read. In the next step S22, the host computer 3 is requested to make reservation data corresponding to the vehicle number data read from the vehicle number card 27.

On the other hand, the host computer 3 transmits reservation data corresponding to the vehicle number data to the shipping control device 4. In S23, the shipping control device 4 checks whether the reservation data has been received. On the other hand, the driver attaches the grounding device 17 of the shipping stage 7 to the tank lorry vehicle 5, checks the slip on which the hatch assignment is described and the oil type and quantity to be loaded by the reservation amount display 26, and finds the appropriate one. The loading arm 25 of the oil type is inserted into the filler port of the corresponding hatch number.

When the reservation data is received, S2
Proceed to 4. In S24, the loading amount and the hatch card No. input by the loading amount setting switch 18a of the loading setting device 18 are registered as set values. In the next step S25, the reservation data transmitted from the host computer 3 is compared with the oil type, quantity, and hatch number set by the loading setting device 18. In S26, it is determined whether the reservation data matches the set value. If the reservation data and the set value do not match, the flow shifts to S27 to prohibit shipment. In this case, the setting operation of the loading setting device 18 needs to be performed again, so the process returns to S24. Then, the processing after S24 is executed again.

If it is determined in step S26 that the reservation data matches the set value, the flow advances to step S28. In this S28, the start switch 18 of the loading setting device 18
Check if b has been turned on. Then, when the start switch 18b of the loading setting device 18 is turned on, the process proceeds to S29, where the pump 20 is started to open the metering valve 24. At the same time as the loading is started, the flow pulses from the flow pulse transmitter 22a of the flow meter 22 are integrated.

In the next step S30, it is checked whether or not shipment to the hatch in which loading has started has been completed. That is, when the flow rate set by the loading amount setting switch 18a is loaded on the hatch, it is determined that the shipment to the hatch is completed. As a result, S
Proceeding to 31, the metering valve 24 is closed and the pump 20
To stop. Further, the driver pulls out the loading arm 25 whose shipment has been completed from the hatch of the tank truck 5 and returns it to a predetermined position on the shipping stage 7 side.

In the next step S32, it is confirmed whether or not the reservation data which has not been loaded yet remains among the reservation data described in the slip. Here, if there is reservation data that has not been loaded yet, the process proceeds to S33. This S3
In step 3, only the reservation data that has not yet been loaded is displayed on the reservation amount display 26. After that, the processes in and after S28 are repeated.

As described above, by repeating the processing of S28 to S33, all of the reservation data is stored in the tank truck 5.
To be loaded. Then, in S32, when there is no more reservation data that has not yet been loaded, the current processing is terminated. FIG. 4 is a schematic configuration diagram of a shipping device employing a shipping system for inputting oil type data using an oil type key. FIG. 5 is a perspective view showing a state where the loading arm is inserted into the tank lorry having arrived at the shipping stage.

In the shipping device 31 shown in FIG. 4, the same portions as those of the shipping device 1 employing the hatch management system described above are denoted by the same reference numerals, and description thereof will be omitted. In addition,
In the shipping device 31, a host computer that manages reservation data when an order is received from a customer such as a gas station is not installed. A hatch oil type key 29 for transmitting oil type data of the shipping line is attached to the loading arm 25.

In FIG. 4, the loading arm 2
Although only one 5 is shown, a plurality of loading arms 25 are actually provided on the shipping stage 7 for each liquid type as shown in FIG. A loading arm 25 is provided above the tank 6 of the tank truck 5.
The hatch loading ports 6a to 6g into which are inserted are provided. Oil type plugs 30 (30a to 30g) to which the hatch oil type keys 29 of the loading arm 25 are connected are attached near the hatch loading ports 8a to 8g.

Accordingly, the oil type plug 30 (30a-30)
g), since the oil type data of the oil liquid loaded via the loading arm 25 is transmitted from the hatch oil type key 29 to the oil type plug 30, the oil type actually loaded on the hatch is displayed on the spot. You can register. Further, the oil type plug 30 is configured in an intrinsically safe circuit because it is installed near the hatch.

FIG. 6 is a perspective view showing the configuration of the hatch oil type key 29. As shown in FIG. The hatch oil type key 29 includes three contacts 32 a to 32 in a housing 31 having a trapezoidal end surface.
32c is provided. Further, a first resistor 33a having a resistance value according to the type of oil is provided between the contact 32a and the contact 32b.

The hatch oil type key 29 has plug insertion holes 31 a to 31 c on the end surface of the housing 31. And
At the back of the plug insertion holes 31a to 31c, the contacts 32a to
32c is provided. When loading the oil liquid, the hatch oil type key 29 provided on the loading arm 25 is connected to the oil type plugs 30a to 30g of the tank truck 5. As a result, in the hatch oil type key 29, the current from the oil type plugs 30a to 30g flows through the contact 32a, and the voltage generated by the resistors 33a and 33b indicates the contact 32b as information (oil type data) for identifying the oil type. , 32c to the oil type plugs 30a to 30g.

FIG. 7 shows an example of the resistance values of the resistors 33a and 33b of the hatch oil type key 29 set corresponding to the oil type data. Thus, in the present embodiment, the resistors 33a and 33b
Is set in accordance with a predetermined oil type (any one of high-octane gasoline, regular gasoline, kerosene, and light oil), the voltage value output from the hatch oil type key 29 causes the oil in the loading arm 25 to change. Species can be identified. Therefore, the number of signal lines can be reduced as compared with a configuration in which a combination of 4-bit or 6-bit signals is used, and the configuration of the hatch oil type key 29 can be simplified and downsized.

Since the housing 31 is connected to the loading arm 25 by the chain 35, the hatch oil type key 29 is lost or the hatch oil type key 29 is
Is prevented from being replaced. FIG. 8 shows a schematic configuration of a tank truck. The inside of the tank 6 of the tank truck 5 is partitioned into a plurality of hatches 42a to 42g having hatch loading ports 6a to 6g. Multiple hatches 4
Different oil types are loaded in 2a to 42g according to the order of the delivery destination.

At the bottom of each of the hatches 42a to 42g, there are provided bottom valves 43a to 43g which are solenoid valves which are opened when unloading the oil liquid loaded in each of the hatches 42a to 42g. The first to third bottom valves 43a to 43c disposed on the front side (driver's seat side) of the bottom valves 43a to 43g.
Are connected in parallel to the first discharge port 45. The fourth to seventh bottom valves 43d to 43g disposed on the rear side among the bottom valves 43a to 43g are connected in parallel to the second discharge port 46.

Further, on the upper portions of the hatches 42a to 42g,
Vapor recovery pipes 48 and 49 are provided for recovering the vapor generated when unloading the gas into the underground tank of the gas station in the hatches 42a to 42g. One vapor collection line 4
8 is communicated with the first to third hatches 42a to 42c provided on the front side (driver's seat side), and the other vapor recovery pipe 49 is provided with the fourth to seventh hatches provided on the rear side. Hatch 42d
~ 42g. Also, the vapor collection line 4
Connection ports 50 and 51 for connecting vapor recovery hoses are provided at the ends of 8, 49.

In the driver's seat of the tank lorry 5, an unloading operation panel 54 operated when unloading, and the type and quantity of oil loaded on each of the hatches 42 a to 42 g at the oil depot are stored.
An unloading computer 55 for controlling the unloading of the oil liquid in each of the hatches 42a to 42g is mounted. The unloading operation panel 54 is an operation unit of the unloading computer 55.

In the memory of the unloading computer 55, the above-mentioned "oil type-resistance value table" as shown in FIG. 7 is stored in advance. Therefore, the unloading computer 55 can identify the voltage value transmitted from the hatch oil type key 29 as oil type data based on the “oil type-resistance value table”. Near the outlets 45 and 46, oil type plugs 56 and 57 for communication are provided. The discharge port oil type plugs 56 and 57 are connected to an unloading computer 55 provided at the driver's seat of the tank truck 5.

When the oil type of each of the hatches 42a to 42g stored in the memory matches the oil type of the underground tank installed at the filling station, the unloading computer 55
A control program for permitting unloading to the underground tank from ~ 42g has been input. Also, each of the hatches 42a to 42
g is provided with liquid level gauges 61a to 61g for detecting the liquid level of the loaded oil liquid. This liquid level meter 61a-
Each of the hatches 42a to 4h is determined based on the liquid level output from 61g.
The amount of oil liquid loaded in 2 g can be determined. Therefore, at the time of unloading, the completion of unloading can be determined from the measured values of the liquid level gauges 61a to 61g.

FIG. 9 is a block diagram showing the structure of the unloading operation panel 54. As shown in FIG. 9, the unloading operation panel 5
4 includes a liquid crystal display 71, an operation panel 72, and a card reader light 73. In the upper part of the operation panel 72, hatch selection switch button _{72d 9} for selecting a hatch number of unloading it is provided. In this embodiment, hatch numbers 1 to 9 can be selected.

On the middle left side of the operation panel 72, an unloading start switch button 75, an unloading interruption switch button 76, and an unloading completion switch button 77 provided corresponding to the first discharge port 45 are provided. Have been. Further, on the middle right side of the operation panel 72, an unloading start switch button 78 and an unloading interruption switch button 7 provided corresponding to the second discharge port 46 are provided.
9. An unloading completion switch button 80 is provided.

Further, on the lower left side of the operation panel 72,
An emergency stop switch button 81 is provided. On the lower right side of the operation panel 72, a loading start switch button 8 is provided.
2. A loading completion switch button 83, an unloading start switch button 84, a cancel switch button 85, and a confirmation switch button 86 are provided. When the unloading operation is performed at the gas station, the card reader light 7 is turned on after the power switch 87 is turned on.
The vehicle number card 27 described above is inserted into 3. Thereby, the card reader light 73 reads the hatch loading information stored in the vehicle number card 27. The hatch loading information read from the vehicle number card 27 is displayed on the liquid crystal display 71. Therefore, the driver can check the hatch number to be unloaded from the hatch loading information displayed on the liquid crystal display 71.

FIG. 10 is a block diagram showing the internal configuration of the unloading computer 55. Unloading computer 55
Are the barrier circuit 91, the CPU 92, the liquid crystal display 7
1 and a display driving circuit 93 for driving the operation panel 7
Keyboard 2 corresponding to 2 and card reader light 73
And a card reader / write drive circuit 95 for driving the card reader / writer.
The barrier circuit 91 includes hatch oil type plugs 30a-
30 g, oil outlet plugs 56 and 57, liquid level gauge 61a
To 61 g are connected.

The CPU 92 of the unloading computer 55
As described later, the input means (the hatch oil type plugs 30a to 30g or the card reader light 73) to which the oil type data is input at the time of loading is identified, and the oil type data input from the discharge port oil type plugs 56 and 57 is used. And hatch oil type plug 30a-30g or card reader light 73
The unloading is permitted only when the oil type matches by comparing the oil type data input from.

Here, the control processing executed by the unloading computer 55 when the oil liquid is loaded into each of the hatches 42a to 42g of the tank lorry 5 at the oil depot will be described with reference to the flowchart of FIG. In step S41 shown in FIG. 11, the unloading computer 55 checks whether loading information has been input. If the loading information has been input, the card reader write 1
It is checked whether loading information has been input to the car number card 27 by 4.

The loading information is the hatch oil type plug 30a-3
If the input has not been started from 0 g, the flow shifts to S43. In this step S43, it is checked whether or not loading information has been input by inputting the oil type key. And car number card 27
If the loading information is stored in the storage area, the loading has been performed by the hatch management system, and the process proceeds to S45. This S4
5, the hatch 4 is stored in the storage unit of the unloading computer 55.
The hatch loading information such as the type of oil, the quantity, and the hatch number loaded in 2a to 42g is stored. After that, the flow shifts to S46, where it is confirmed that the loading on the hatches 42a to 42g is completed.

However, if the loading information is input by the oil type key input in S43, the loading is performed by the oil type key method, and the process proceeds to S44. S
At 44, the oil liquid is applied to each of the hatches 42a to 42
g, the oil type loaded in each of the hatches 42a to 42g is stored based on the oil type signal from the hatch oil type key 29 connected to the hatch oil type plugs 30a to 30g.

In the next S46, it is confirmed that the loading on the hatches 42a to 42g has been completed, and the completion of the loading terminates the current processing. FIG. 12 is a flowchart for explaining the details of the oil type key signal processing in S44. FIG. 13 is a view showing a state where the hatch oil type key is connected to the oil type plug.

In this case, since the loading is performed by the oil type key method, the driver first sets the loading arm 25 corresponding to the reserved oil type among the hatch loading ports 6a to 6g of the hatches 42a to 42g. Insert into the hatch corresponding to the quantity. Then, as shown in FIG. 13, the oil type plugs 40a to 40g provided near the hatch loading ports 6a to 6g.
The hatch oil type key 29 of the loading arm 25 is connected to the oil type plug of one hatch into which the loading arm 25 is inserted out of the 40 g.

The unloading computer 55 is connected to S5 in FIG.
In step 1, it is confirmed that the ignition switch 66 of the tank truck 5 has been turned off and the engine has stopped. When it is confirmed that the engine has stopped, the process proceeds to S52, in which a constant current is applied to each of the oil type plugs 40a to 40g provided in each of the hatches 42a to 42g of the tank truck 5 to apply a voltage.

In the next S53, the input port 1 to which the signal received from the connector 40a of the first hatch 42a is inputted.
To determine whether there is a voltage change. The hatch oil type key 29 provided on the loading arm 25 is
When 0a is connected, a voltage change occurs according to the resistance value of the hatch oil type key 29. Therefore, if there is a voltage change at the input port 1 corresponding to the hatch 42a in S53, the process proceeds to S54. In S54, the oil type signal transmitted from the hatch oil type key 29 is read from the voltage change of the input port 1.

Then, in the next S55, the hatch 42a is obtained by A / D converting a voltage value corresponding to the resistance value of the hatch oil type key 29 supplied to the input port 1 as oil type data.
Is stored in the cargo data storage unit of the unloading computer 55 as the loading oil type. Thereafter, the process proceeds to S56, in which the energization of the oil type plug 40a is stopped, and the process returns to S53. Also, S
In 53, when there is no voltage change at the input port 1,
Proceeding to S57, the oil type plug 40b of the second hatch 42b
It is determined whether there is a voltage change at the input port 2 to which the signal received from is input. In S57, when there is a voltage change at the input port 2, the same processing as S54 to S56 is executed.

If there is no voltage change at the input port 2 in S57, it is determined whether there is a voltage change at the input port 3 to which the signal received from the oil type plug 40c of the third hatch 42c is input. I do. In this manner, the respective oil type plugs 40a-4 provided on the respective hatches 42a-42g
0g voltage change is monitored, and the input port 8
If there is no voltage change, the process proceeds to S59, and it is determined whether or not the ignition switch 66 of the tank truck 5 is turned on, that is, whether or not all the loading of the oil liquid has been completed.

Then, all the oil type plugs 40a to 40g
If there is no change in the voltage and the ignition switch 66 is off in S59, the process returns to S51, and the processes in and after S51 are repeated. However, when the ignition switch 66 is turned on in S59, the loading control process by the unloading computer 55 is terminated in order to start the tank truck 5 assuming that loading is completed.

Thereafter, the oil liquid (oil type and quantity) of the reservation data
The tank lorry 5 loaded with all the items moves to the delivery destination gas station. FIG. 14 is a view showing an example of the cargo data stored in the memory of the unloading computer 55. As described above, the oil type data transmitted from the hatch oil type key 29 of the loading arm 25 inserted in each of the hatches 42a to 42g is stored in the oil type plug 40a provided near each of the hatch loading ports 6a to 6g. 14 through 40g, the unloading computer 55 stores the oil type data for each of the hatches 42a to 42g in the memory, as shown in FIG.

For this reason, the unloading computer 55 uses the hatch 42a from the load data at the time of unloading as described later.
By reading the oil type data for every .about.42 g, the oil type actually loaded on each of the hatches 42a to 42g can be accurately recognized. For example, if the driver has the first hatch 42
In the case where gas oil is accidentally loaded when gas is intended to be loaded into a, the unloading computer 55 stores "1st hatch = light oil" and the actually loaded oil type. Sometimes the oil type is not mistaken. For this reason, an accident of mixing different oil types is prevented.

Next, a description will be given of a case where an unloading is performed at a delivery destination gas station. FIG. 15 is a schematic configuration diagram of an unloading device for a tank truck of the present invention. Underground tanks 101 and 102 of different oil types are buried under the gas station. For example, the underground tank 101 is provided as a gasoline tank, and the underground tank 102 is provided as a light oil tank.

In this embodiment, the underground tanks 101, 10
The case of unloading the oil liquid in 2 will be described as an example. However, it is needless to say that the present invention can also be applied to the case of unloading a tank installed on the ground instead of the underground tanks 101 and 102. The underground tanks 101 and 102 are filled with oil supply pipes 104 and 105 to which the oil liquid is supplied from the tank lorry 5,
Oil vapor discharge pipes 106 and 107 are provided for discharging oil vapor generated inside 01 and 102 to the outside. The oil vapor discharge pipes 106 and 107 reduce the negative pressure in the underground tanks 101 and 102 by lowering the liquid level and introducing outside air into the tanks when refueling the fuel tanks of the vehicle.

The oil vapor discharge pipes 106 and 107 are provided with exhaust ports 106a and 107a at the corners of the filling station and extending to predetermined heights at the ends of the oil vapor discharge pipes 106 and 107. Connections 108 and 109 are branched in the middle of 107. Also, lubrication ports 110, 102 of each underground tank 101, 102 provided at the upper end of the lubrication pipelines 104, 105
The tank 111 is provided with tank oil type keys 114 and 115 for transmitting an underground tank code number and oil type data set for each underground tank 111 and 112 after the unloading hoses 112 and 113 are connected. I have. The unloading hoses 112 and 113 have tank oil type keys 114 and 1 respectively.
Signal line 1 for transmitting the signal from 15 to the tank truck
12a and 113a are provided.

The tank oil type keys 114, 1 provided at the lubrication ports 110, 111 of the underground tanks 101, 102, respectively.
15 has the same configuration as the hatch oil type key 29 as described above, and the description of the internal configuration is omitted. FIG. 16 is a diagram showing the configuration of the unloading hoses 112 and 113. In the unloading hoses 112 and 113, a tubular connection fitting 122 is press-fitted into one end of an oil-resistant hose 121, and the connection fitting 1
A nut 123 screwed to the discharge ports 45 and 46 of the tank truck 5 is provided at an end of the tank truck 5. The connection fitting 122 has plugs 136 on the tank truck 5 side.
A connector 127 to which the 137 is connected is attached.

At the other end of the hose 121, a tubular connection fitting 128 is press-fitted. At an end of the connection fitting 128, a screw portion 129 to be screwed into the lubrication ports 110, 111 of the underground tanks 101, 102 is provided. Is provided. Further, the connection fitting 128 is provided with an oil type plug 130 to which tank oil type keys 114 and 115 provided near the oil inlets 110 and 111 are connected. A signal line (not shown) for connecting the connectors 127 and 130 at both ends is provided on the outer periphery or the thick portion of the hose 121.

FIG. 17 is a view showing a connection state of the unloading hose 112. When unloading the oil liquid loaded on the tank truck 5, the screw portion 129 of the unloading hose 112 is screwed into the lubrication port 110 of the underground tank 101, and the nut 123 is screwed into the discharge port 45. After the unloading hose 112 is connected to the lubrication port 110 as described above, the unloading hose 11 is connected to the connector 125 on the tank truck vehicle side.
2 and the tank oil type key 114 is connected to the connector 130 of the unloading hose 112, the voltage corresponding to the resistance value in the tank oil type key 114 identifies the oil type signal and the underground tank. The signal is transmitted to the unloading computer 55 as a tank signal.

The connection of the unloading hose 113 is performed in the same manner as the unloading hose 112, and a description thereof will be omitted. As shown in FIG.
2, 113 are discharge ports 45, 46 and lubrication ports 110, 111
Is connected to communicate with the vapor recovery hose 13
1, 132 is a connection portion 1 of the oil vapor discharge lines 116, 117.
08,109 and tank lorry 5 connecting parts 140,14
1 are connected to communicate with each other.

Here, the unloading process executed by the unloading computer 55 will be described with reference to the flowcharts shown in FIGS. FIG. 18 is a flowchart for explaining the identification processing of the hatch information input method first executed by the unloading computer 55 when unloading. FIG. 19 is a flowchart for explaining the unloading process.

When the tank truck 5 arrives at the delivery station, the driver turns on the power switch 87 of the unloading computer 55. As a result, the unloading computer 55 executes the hatch information input method identification process shown in FIG. That is, in S61, it is checked whether or not there is an oil type key input. If the oil type data is input at the oil depot using the oil type key 29, the process proceeds to S62, where the oil type and quantity of each hatch are read from the load data stored in the memory of the unloading computer 55. And S6
In step 3, the hatch loading information is displayed on the liquid crystal display 71. The driver can now see the oil type loaded on each hatch,
You can check the quantity.

If it is determined in step S61 that hatch loading information has not been input using the oil type key, the process proceeds to step S64.
The hatch loading information is transferred to the card reader write 14
Check if it was entered from. Then, when the hatch loading information is input from the card reader light 14, the process proceeds to S65, and the display of the vehicle number card is displayed on the liquid crystal display 71.

Thus, the driver unloads the vehicle number card 27 and inserts it into the card reader light 73 of the computer 55. Then, the car number card 2 is displayed in the card reader light 73.
7 is inserted, and the hatch loading information stored in the vehicle number card 27 is read in S66. Thereafter, the flow proceeds to S63, where the hatch loading information is displayed on the liquid crystal display 71.

As described above, the storage medium storing the hatch loading information is identified by recognizing whether the hatch information input method is by the oil type key 29 or the vehicle number card 27. Then, by selecting a storage medium according to the shipping management method of the oil depot, the hatch loading information can be read in both the hatch management system and the oil type key system.

For this reason, the tank truck 5 can load the oil liquid at any oil depot regardless of the hatch management method or the oil type key method. Therefore, by loading at an oil depot near the delivery destination, delivery efficiency can be improved. Thereafter, the driver switches the ignition switch of the tank truck 5 to stop the engine. Then, the driver checks the delivery destination and the quantity of the oil type indicated on the slip of the oil depot, and checks the underground tank 1 installed at the gas station.
After confirming the oil types of 01 and 102, the operation proceeds to the unloading operation.

When the hatch information input method identification processing is completed, the unloading computer 55 executes the unloading processing shown in FIG. In S71, it is determined whether or not the ignition switch has been switched to the ACC position. Then, when the ignition switch is switched to ACC, the process proceeds to S72, and it is determined whether or not the ground is connected.

In S72, when the ground wire drawn from the ground reel 60 of the tank truck 5 is grounded, the flow advances to S73, and the storage medium identified by the identification processing of the hatch information input method, ie, the unloading computer 55 The hatch loading information (hatch number, oil type, quantity, etc.) stored in each of the hatches 42a to 42g stored in the memory or the vehicle number card 27 is read.

Subsequently, in S74, the unloading hose 11
2 and 113 are determined to be connected. The unloading hoses 112 and 113 are connected to the discharge ports 45 and 46 and the lubrication port 1.
10 and 111 are connected. The connector 125 on the tank truck is connected to the unloading hose 11.
2, 113 connectors 127. At the same time, the tank oil type keys 114 and 115 on the underground tank side are connected to the connectors 130 of the unloading hoses 112 and 113.
Thereby, the voltage corresponding to the resistance value in the tank oil type keys 114 and 115 is transmitted to the unloading computer 55 as the oil type signal and the tank signal.

Therefore, in S74, the data transmitted from the tank oil type keys 114 and 115 (oil type data,
When the tank code number) is received, the unloading hose 11
It is determined that the connection of 2,113 has been completed. Next S7
In step 5, data (oil type data, tank code number) transmitted from the tank oil type keys 114 and 115 is read.

In the next S76, the unloading hoses 112, 1
13 is compared with the oil type data of the underground tanks 101 and 102 connected to the hatches 42a to 42g to determine whether or not the oil types match. In S76, if the two oil types match, it is confirmed that no accident of mixing different types of oil occurs. Therefore, the process proceeds to S77, and the unloading hose 112 of the bottom valves 43a to 43g of the hatches 42a to 42g is used. 113 opens the connected bottom valve. As a result, the oil liquid of the hatch is discharged from the unloading hoses 112 and 1.
The cargo is unloaded to the underground tanks 101 and 102 via.

In the next step S78, a measured value of the liquid level detected by the liquid level meters 61a to 61g provided on the hatches 42a to 42g is read. Then, in S79, the liquid level gauge 6
When the liquid level detected by 1a to 61g is zero, it is determined that the unloading of the hatch is completed. Therefore, even when only a smaller quantity is loaded than the hatch capacity of each hatch 42a-42g, each hatch 42a-42g
The completion of unloading can be confirmed for each.

In the next step S80, it is checked whether there is any loading data that has not yet been unloaded. And S8
If there is any unloading data at 0, there is still an oil liquid to be unloaded, so the process returns to S74 and returns to S74 to S74.
80 is repeated. If the oil types do not match in S76, the flow shifts to S81 to notify by an alarm or the like that there is an abnormality in the connection of the unloading hoses 112 and 113.

Then, returning to S74, the unloading hose 11
The connection work of 2,113 is redone. The above S
If there is no unloading data at 80, it is determined that all the unloading work to this gas station has been completed, and the process proceeds to S82, where it is confirmed that the ground wire has been rewound on the ground reel 60. Subsequently, in S83, it is confirmed that the ignition switch of the tank truck 5 is turned on to start the engine.

When the ignition switch is turned on, the flow proceeds to S84, where the oil type data of the hatch unloaded this time at this refueling station is cleared from the loading data storage section of the unloading computer 55, and a series of loading is performed. The process ends. As described above, since the oil type at the time of unloading is confirmed based on the oil type of the loading arm 25 stored when the oil liquid is loaded, it is prevented that another oil type is unloaded to the underground tanks 101 and 102. it can. Therefore, even if the oil type is mistaken at the time of loading, the oil type data of the oil liquid actually loaded in the hatches 42a to 42g is stored in the underground tanks 101 and 102.
Since the oil types are compared with each other, it is possible to prevent mixing of different oil types at the time of unloading.

Since the unloading computer 55 stores data (oil type data for each hatch and oil type data for each lubrication port) related to the current delivery, it is possible to output these data. Delivery management can be performed easily.
Note that, in the above embodiment, the case of unloading the oil liquid to the underground tank of the gas station has been described as an example.However, the invention is not limited to this, and when unloading the oil liquid to the underground tank provided in another place, Of course, it is also possible to apply.

In the above-described embodiment, the first and second types are used for inputting the type of oil to be loaded on the tank truck to the vehicle number card and storing the type of oil in the unloading computer memory via the type key. Although the input means and the storage means are described above, the present invention uses other input means (for example, a bar code, a magnetic embedded card, etc.) or storage means (for example, a magnetic disk, an IC card, a handy terminal, etc.). It can also be applied to a shipping management system with a different configuration.

[0089]

As described above, according to the first aspect of the present invention, when loading the oil liquid on each hatch at the oil depot, whether loading information has been input by any of the plurality of types of input means. In order to allow the unloading of the oil liquid loaded on the hatch based on the hatch loading information read by the hatch information reading means, even if the oil liquid is loaded at a different oil depot in the shipping management system However, the loading information of the hatch can be stored in the corresponding storage means from the input means corresponding to the shipment management system.

Therefore, when unloading the oil liquid loaded on the hatch, it is possible to unload to the tank of the same oil type and to prohibit unloading to the tanks of different oil types regardless of the input means. Therefore, it is possible to load the oil liquid at any oil depot regardless of the hatch management method or the oil type key method. As a result, since the cargo can be loaded at the oil depot near the delivery destination, the delivery efficiency can be further improved.

According to the second aspect of the present invention,
Since it has an input means consisting of a card reader and an oil type key connector, oil can be easily loaded in an oil depot where only the card reader is installed or in an oil depot where only the oil type key connector is installed. it can.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating a schematic configuration of a hatch management system for an oil tank yard.

FIG. 2 is a flowchart of a process executed by a CPU of a hatch setting device.

FIG. 3 is a flowchart illustrating a process executed by the shipping control device.

FIG. 4 is a schematic configuration diagram of a shipping apparatus that employs a shipping system for inputting oil type data using an oil type key.

FIG. 5 is a perspective view showing a state in which a loading arm is inserted into a tank lorry having arrived at a shipping stage.

FIG. 6 is a perspective view showing a configuration of a hatch oil type key.

FIG. 7 is a diagram illustrating an example of a resistance value of a resistance of a hatch oil type key set corresponding to oil type data.

FIG. 8 is a diagram showing a schematic configuration of a tank truck.

FIG. 9 is a block diagram showing a configuration of an unloading operation panel.

FIG. 10 is a block diagram showing an internal configuration of an unloading computer.

FIG. 11 is a flowchart of a control process executed by an unloading computer.

FIG. 12 is a flowchart illustrating details of the oil type key signal processing in S44.

FIG. 13 is a diagram showing a state in which a hatch oil type key is connected to an oil type plug.

FIG. 14 is a diagram showing an example of cargo data stored in a memory of an unloading computer.

FIG. 15 is a schematic configuration diagram of an unloading device for a tank truck of the present invention.

FIG. 16 is a diagram showing a configuration of an unloading hose.

FIG. 17 is a view showing a connection state of an unloading hose.

FIG. 18 is a flowchart illustrating a hatch information input method identification process first performed by the unloading computer when unloading.

FIG. 19 is a flowchart illustrating an unloading process.

[Explanation of symbols]

 1,31 shipping device 2 hatch setting device 3 host computer 4 shipping control device 5 tank lorry 7 shipping stage 8,14 card reader light 18 loading setting device 20 pump 22 flow meter 24 metering valve 25 loading arm 29 hatch oil type key 30 ( 30a-30g) Oil type plugs 42a-42g Hatch 43a-43g Bottom valve 45 First discharge port 46 Second discharge port 48,49 Vapor recovery conduit 54 Unloading operation panel 55 Unloading computer 61a-61g Liquid level gauge 66 Ignition switch 71 LCD display 72 Operation panel 73 Card reader light

Claims (2)

[Claims] When an oil liquid is loaded on a hatch of a tank lorry at an oil depot, information of the oil liquid to be loaded for each hatch is input by an input means at a shipping stage and a tank lorry which manages hatch loading information. In the unloading control device, a plurality of the input means are provided, and when the oil liquid is loaded on each hatch at the oil depot, it is recognized whether the loading information is input by any of the plurality of input means. Input recognition means, storage means for storing loading information for each hatch input from the input means recognized by the input recognition means, hatch information reading means for reading the loading information of the hatch from the storage means, Unloading of the oil liquid loaded on the hatch based on the loading information of the hatch read by the hatch information reading means. Unloading control apparatus for tank lorry vehicle and characterized in that it comprises a unloading permission unit for variable, a. 2. The unloading control device for a tank lorry according to claim 1, wherein the input means includes a card reader and an oil type key connector.