JPH04294794A - Load display device of tank rolly - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo display device for a tank lorry, and more particularly to a cargo display device for a tank lorry configured to accurately display the type of oil loaded in each hatch.

0002

2. Description of the Related Art Tanker trucks are generally used as means for delivering oil fluid from oil depots to gas stations and the like.

[0003] The tank of a tank truck is partitioned into a plurality of hatches, and each hatch is marked with a number, for example, according to the order of the delivery destination. Gasoline is in hatch No. 1, hatch No. Light oil in hatch No. 2, hatch No. Oil liquid such as kerosene is loaded into hatch 3 for each hatch. Conventional cargo display devices that display the type and amount of oil loaded into each hatch include:
There is a display board installed at the rear of the tanker truck. This display board is designed to be replaced with a plate that displays the oil type and loading amount for each hatch. In other words, when the loading of oil liquid at the oil depot is completed, the driver replaces the plate on the display board based on the oil type and loading amount written on the shipping instructions.

[0004] Next, when the tanker truck arrives at the destination gas station, the worker looks at the name plate installed near the filler port of the underground tank to be refilled and determines that the type of oil in the underground tank is, for example, gasoline. Check. Then, based on the worker's judgment, the type of oil in each hatch displayed on the display board of the lorry is compared with the type of oil in the underground tank.

After confirming the oil type, connect one end of the oil supply hose to the No. 1 tank truck loaded with gasoline. 1, and the other end is connected to the oil inlet installed in the underground tank for gasoline, and then, for example, open the on-off valve installed in the oil inlet of the hatch of the tank truck. Unloading takes place. Similar operations will be performed when unloading light oil and kerosene.

[0006]

[Problems to be Solved by the Invention] In the conventional cargo display device described above, since the plate is replaced manually by the driver,
Sometimes the information displayed on the display board is incorrect, in which case, for example, diesel oil may be unloaded into an underground tank for gasoline.
Gasoline and diesel oil were mixed in the underground tank, and there was a risk of contamination due to the mixing of the two liquids.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a cargo display device for a tank lorry that automatically displays the oil type for each hatch based on information from a card reader or oil type sensor. shall be.

[0008]

[Means for Solving the Problem] The invention as claimed in claim 1 provides a display device provided on a tanker truck equipped with a plurality of hatches, and a card reader for reading a card storing data on the type of oil to be loaded in each hatch. and a control means for displaying the oil type for each of the plurality of hatches on the display based on the oil type data of the card output from the card reader.

The invention according to claim 2 includes: an indicator provided on a tank lorry vehicle having a plurality of hatches; an oil type sensor provided for each hatch to detect the type of oil loaded in the hatch; The control means includes a control means for displaying the oil type for each of the plurality of hatches on the display based on the detection signal output from the oil type sensor.

0010

[Operation] Based on the information output from the card reader that reads the oil type data on the card or the oil type sensor in the hatch, the oil type for each hatch is automatically displayed on the display without manual operation by the driver. Therefore, display errors due to human error are eliminated, and two-liquid mixing accidents due to incorrect oil type display are prevented.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 3 show an embodiment of a load display device for a tank lorry according to the present invention.

A tank truck 1 shown in FIGS. 1 to 3 loads ordered oil into a tank 2 at an oil depot, and then delivers the oil to the orderer.

The inside of the tank 2 is partitioned by a plurality of hatches, and in this embodiment, there are four hatches 2A, 2B, 2C,
It is assumed that 2D is provided. Also, hatch 2A is 4
kiloliter, hatch 2B is 2 kiloliter, hatch 2
C and 2D have different hatch capacities, such as 3 kiloliters.

Each of the hatches 2A, 2B, 2C, and 2D is configured such that, for example, the type of oil that is ordered frequently is placed in hatch 2A, which has a large hatch capacity, and the type of oil that is ordered relatively little is placed in hatch 2B, which has a small hatch capacity.
The type of oil to be loaded is determined in advance.

Further, below the tank 2 of the tank lorry vehicle 1, there are oil feed ports 3A, 3 for each hatch 2A, 2B, 2C, 2D.
B, 3C, 3D and oil feed valves 4A, 4B, 4C, 4D have been delivered. The oil feed valves 4A, 4B, 4C, and 4D normally remain closed.

The lorry vehicle 1 always carries an oil supply hose 5, and when it arrives at the delivery destination, one end of the oil supply hose 5 is connected to one of the oil supply ports 3A, 3B, 3C, and 3D, and the other end is connected to one of the oil supply ports 3A, 3B, 3C, and 3D. It is connected to the oil filler port 7 of the underground tank 6 corresponding to the oil type.

As shown in FIG. 1, a load display device 8 is provided behind the tank of the tank lorry 1 to display the type and amount of oil loaded into each of the hatches 2A to 2D.

As shown in FIGS. 3 and 4, this cargo display device 8 includes a card reader 10 for reading data stored in a vehicle number card 9, a liquid crystal display 11, and a card reader 1.
Each hatch 2A-2 based on the data read by 0
It consists of a control circuit 12 that causes a display 11 to display the oil type and loading amount for each D. Note that the display 11 may be made of something other than liquid crystal.

The vehicle number card 9 is made of a magnetic card, and its magnetic storage section 9a stores the tank lorry vehicle 1 as shown in FIG.
Loading data such as the vehicle number, processing number, type of oil loaded in each hatch 2A to 2D, and amount loaded are stored. and,
This car number card 9 is issued based on the reservation data input into the host computer of the oil depot, and when the tanker truck 1 arrives at the entrance of the oil depot, the car number card 9 is issued to the car whose loading data is stored this time. Number card 9 is handed to the driver.

Further, the card reader 10 is provided on the side of the liquid crystal display 11, and after the loading of the oil liquid is completed, the magnetic storage part 9a of the car number card 9 is inserted into the slit 10a extending in the vertical direction. Data such as oil type and loading amount are read for each hatch 2A to 2D that is inserted and stored in the magnetic storage section 9a. Based on the data read by the card reader 10, the liquid crystal display 11 displays the type and quantity (loaded amount) of oil loaded in each of the hatches 2A to 2D as shown in FIG.

Note that the processing number of the magnetic storage section 9a is No.
If the number is 1, the vehicle number is memorized and No. In case of 2, indicator 11
The displayed contents are updated.

After the oil loading is completed, the control circuit 12 executes the process shown in FIG. 6.

In this embodiment, at the shipping stage of the oil depot, 4 kiloliters of gasoline is stored in the first hatch 2A of the tank truck 1, 2 kiloliters of kerosene is stored in the second hatch 2B, and 2 kiloliters of kerosene is stored in the third hatch 2C. 3 kiloliters of diesel oil,
3 kiloliters of gasoline is loaded into No. 4 hatch 2D.

When the driver has completed loading the oil type and quantity of oil into the hatches 2A to 2D, he inserts the vehicle number card 9 into the card reader and reads the data stored in the magnetic storage section 9a (
(shown in Figure 5).

As shown in FIG. 6, when the card reader 10 reads the data stored in the car number card 9 in step S1 (hereinafter steps will be omitted), the control circuit 12 moves to S2 and confirms the processing number. . In S2, processing No. If it is 1, the vehicle number has not been recognized yet, so the "vehicle number" is stored in S3.

However, in S2, processing No. If it is not 1, the process moves to S4 and the process No. Confirm that it is 2.

[0027] In S4, processing No. 2, the "vehicle number" stored in the vehicle number card 9 and the "vehicle number" stored in advance
Check whether the vehicle number matches the vehicle number (S5
).

In S6, if the vehicle numbers match, it can be confirmed that the vehicle number card 9 is a regular card, and the process moves to S7, where the loading data stored in the magnetic storage section 9a of the vehicle number card 9 is stored. Check.

Proceeding to S7, if the loading data is normal, each hatch 2A to 2 is displayed on the display 11 as shown in FIG.
Displays oil type and loading amount for each D.

In this way, simply by inserting the car number card 9 into the card reader 10, each hatch 2A to 2A is displayed on the display 11.
The type of oil loaded into the 2D and the amount loaded are automatically displayed. Therefore, it is possible to prevent display contents from being incorrectly displayed due to human error as in the past. Therefore, when a worker unloads the product at the delivery destination, there is no risk of a two-liquid mixing accident occurring due to the wrong type of oil.

[0031] Also, in S4, processing No. If it is not 2, the process moves to S9 and an error message is displayed on the display 11. In that case, the driver checks whether the car number card 9 is a regular one and inserts the car number card 9 into the card reader 10.

Furthermore, if the vehicle numbers do not match in S6, or if the data stored in the vehicle number card 9 is incorrect in S7, the process moves to S9 and an error message is displayed on the display 11.

FIG. 7 shows a modification of the present invention.

In the figure, a flow pulse outputted by a flow meter 13 of a tank truck 1 is supplied to a control circuit 12. A flow meter 13 is provided for each hatch 2A to 2D, and during loading and unloading, measures the flow rate unloaded from each hatch 2A to 2D into the underground tank 6, and outputs a pulse of the flow rate.

When the flow rate pulse is supplied from the flow meter 13, the control circuit 12 integrates the number of pulses to total the flow rate, and blinks the oil type name on the display 11, so that the oil in the hatch is unloaded. Indicates that it is inside.

At the same time, the integrated value is subtracted from the quantity displayed on the display 11, and the remaining amount of the hatch is displayed on the display 11.
to be displayed.

A second embodiment of the present invention is shown in FIGS. 8 to 10.

In each figure, each hatch 2A of the tank truck 1
~ Inside 2D, there is an oil type sensor 14 that detects the type of oil loaded.
(14A to 14D) and a liquid level sensor 15 (15A to 15D) for detecting the liquid level position of the loaded oil liquid.

As the oil type sensor 14, in this embodiment, a semiconductor type gas sensor is used which detects the oil vapor pressure of the oil when loading the oil and outputs a signal corresponding to the oil vapor pressure. The saturated vapor pressure inside the hatches 2A to 2D varies depending on the type of oil loaded, and for example, gasoline has a higher saturated vapor pressure than light oil. Therefore, when gasoline is loaded, the output of the oil type sensor 14 becomes high, and when light oil is loaded, the output of the oil type sensor 14 becomes low. In addition, when using a semiconductor type gas sensor, due to the characteristics of the gas sensor, if oil liquid is directly attached, it will not be possible to accurately detect the oil type and may cause a malfunction. Attach to.

Further, as the liquid level sensor 15, a capacitance type sensor is used which applies the principle of a capacitor. The capacitance type level sensor 15 is directly immersed in the oil liquid and outputs a signal of a size according to the liquid level position, so the hatch 2
It is suspended from the ceiling 2a of A to 2D so as to extend in the hanging direction.

The cargo display device 16 of the second embodiment includes the oil type sensors 14A to 14D and the liquid level sensors 15A to 1.
5D, liquid crystal display 11, and oil type sensors 14A to 14D
and a control circuit 12 that causes the display 11 to display the oil type and loading amount for each of the hatches 2A to 2D based on signals output from the liquid levels 15A to 15D. Therefore, the card reader 10 is not necessary in the second embodiment.

The control circuit 12 is connected to each hatch 2 in the oil depot.
When oil is loaded into A to 2D, the process shown in FIG. 10 is executed.

When the tank truck 1 arrives at the shipping stage of the oil depot, the loading arm 18 is inserted into the fuel filler port 17 of each hatch 2A to 2D as described above, and the set oil is loaded into the hatches 2A to 2D. be included.

[0044] When the loading of oil to each hatch 2A to 2D is completed, the control circuit 12 first performs the control circuit 12 for the first hatch 2A as shown in FIG.
Execute the process shown in

When a detection signal is output from the oil type sensor 141 in step S11 (hereinafter steps will be omitted), it is checked whether the loaded oil type is "gasoline" based on the detection signal (S12). . In S12, “
If it is determined that the liquid is "gasoline", the process moves to S13, where the output of the liquid level detection sensor 151 is read and the hatch number of the display 11 is displayed. In column 1, oil type “gasoline” and loading amount “4”
The kiloliter is displayed as shown in Figure 4.

[0046] In S12, the oil type is "gasoline".
If not, the process moves to S15 and it is determined whether it is "light oil" or not.

When it is determined in S15 that the oil type is "light oil", the processes in S15 and S16 are performed in the same manner as in S13 and S14 above, and the hatch number on the display 11 is changed. Display the oil type “light oil” and its loading amount in column 1.

If the oil type is not "light oil" in S15, the process moves to S18, where it is determined that it is "kerosene", and the processes of S19 and S20 are executed in the same manner as S13 and S14, and the display 11 is Hatch No. Display the type of oil “kerosene” and its loading amount in column 1.

When the display of the oil type and loading amount for the No. 1 hatch 2A is completed as described above, the control circuit 12 displays the oil type and loading amount for the No. 2 hatch 2B in the same manner as above. Execute. Subsequently, the control circuit 12 continues to display the oil type and loading amount for the third hatch 2C and the fourth hatch 2D.

Therefore, when the loading of oil at the oil depot is completed, the display 11 shows the hatches 2A to 2A as shown in FIG.
The oil type and loading amount for each 2D are automatically displayed. Therefore, the wrong type of oil will not be displayed on the display 11, and an accident of mixing two liquids during unloading work can be prevented.

The liquid level sensor 15 is in operation even during the unloading operation, and when the liquid level drops due to the unloading operation, the loaded amount on the display 11 is subtracted based on the detection signal. be done. Therefore, the operator can check the type of oil currently being unloaded and the amount of unloaded oil on the display board 19.

Therefore, for example, if the gasoline in hatch 2A is
If only kiloliters are unloaded, the column in hatch 2A of display 11 will read "Gasoline, 2 kiloliters".
You can see your balance at a glance. Therefore, it is convenient when delivering oil liquid to small-lot destinations.

It goes without saying that types of oil type sensor and liquid level sensor other than those mentioned above may be used.

[0054]

Effects of the Invention As described above, the cargo display device for a tank lorry according to the present invention is based on information output from a card reader that reads oil type data stored on a card or an oil type sensor provided in a hatch. This allows the oil type for each hatch to be accurately displayed, and because it does not rely on the driver's manual operation as in the past, display errors due to human error can be prevented.

Therefore, when an operator performs unloading work while looking at the display, there is no risk of a two-liquid mixing accident, and the unloading work is more reliable.

[Brief explanation of drawings]

FIG. 1: A first load display device for a tank truck according to the present invention.
It is a figure showing an example.

FIG. 2 is a side view of the tank truck.

FIG. 3 is a block diagram showing the configuration of a cargo display device.

FIG. 4 is an enlarged front view of the cargo display device.

FIG. 5 is a diagram for explaining a magnetic storage section of a car number card.

FIG. 6 is a flowchart for explaining processing executed by the control circuit of the first embodiment.

FIG. 7 is a block diagram for explaining a modification of the present invention.

FIG. 8 is a longitudinal sectional view of a hatch for explaining a second embodiment of the present invention.

FIG. 9 is a block diagram showing the configuration of a second embodiment.

FIG. 10 is a flowchart executed by the control circuit of the second embodiment.

[Explanation of symbols]

1 Tank truck 2 Tank 2A~2D Hatch 5 Oil supply hose 6 Underground tank 8,16 Load display device 9 Car number card 10 Card reader 11 Liquid crystal display 12 Control circuit

Claims (2)

[Claims] Claim 1: A display device provided on a tank truck equipped with a plurality of hatches, a card reader that reads a card storing data on the type of oil to be loaded in each hatch, and a card output from the card reader. A cargo display device for a tank lorry, comprising: a control means for displaying the oil type for each of the plurality of hatches on the display based on oil type data. 2. An indicator provided on a tank lorry vehicle equipped with a plurality of hatches, an oil type sensor provided for each hatch to detect the type of oil loaded in the hatch, and an oil type sensor provided from the oil type sensor. control means for displaying the oil type for each of the plurality of hatches on the display based on the output detection signal;
A cargo display device for a tank truck, characterized by the following: