JP3866845B2 - Operation management system for cold storage vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an operation management system in a cold storage vehicle such as a refrigeration vehicle or a refrigeration vehicle that transports cargo such as food such as fresh seafood and meat and medical supplies.
[0002]
[Prior art]
Recent vehicles such as trucks, buses, taxis, etc. are equipped with operation management meters that record their operation status over time. As this operation management meter, for example, there is one disclosed in JP-A-7-168955 related to the applicant of this application. And the operation management meter has come to be installed also in the cold storage vehicle which carries foods, medical supplies, etc., such as fresh seafood and meat.
[0003]
By the way, also in the operation management system in the cold-reserved vehicle equipped with the operation management meter, the crew member (driver) of the cold-reserved vehicle is registered for work by using a registration terminal connected to the operation management meter provided near the driver's seat of the vehicle. Is performed by operating.
[0004]
[Problems to be solved by the invention]
However, in the operation management system for the conventional cold-insulated vehicle, it is necessary to manually perform an operation , and an operation error such as forgetting the operation of the crew is inevitable. On the other hand, for example, it may be possible to identify whether or not the unloading operation has been performed by attaching a door sensor to a door of a cargo compartment composed of a cold storage such as a freezer compartment and detecting the opening and closing of the door with this door sensor. It is done. However, in this case, it is necessary to attach a door sensor separately.
[0005]
The present invention has been made in consideration of the above-mentioned matters, and an object thereof is to provide an operation management system in a cold-reserved vehicle that can automatically detect an unloading operation without providing a door sensor or the like. It is.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, various data necessary for vehicle operation management including output signals from various sensors provided in the vehicle and work items input by the registration terminal are installed in the vehicle. meter to freely be recorded over time in the mounted as a recording medium removably, in traffic control systems in cold vehicles are configured to so that reading the reading device installed in a fixed position to the recording contents of the recording medium, the cold storage A temperature sensor is provided in the cargo compartment of the vehicle, a temperature change curve indicating a change in temperature of the cargo compartment detected by the temperature sensor and a speed change curve of the vehicle are recorded on the recording medium, and the recorded temperature change appropriate vehicle by butting the open state and speed change curve determination and vehicle time length that open the door of the door of the luggage compartment based on the curve It is characterized in that so as to identify the work in.
[0007]
As indicated at C, G 3, during the running of the vehicle is not closing the door of the luggage compartment, but because it is sealed state Temperature changes within the cargo compartment small door arrived at one of the delivery destination When opened, the temperature in the cargo compartment rises rapidly, as indicated by symbols D and H. When the unloading or the like is performed, the door remains open, so that the temperature further increases as indicated by reference numerals E, I, and K.
[0008]
Therefore, it is possible to determine whether the cargo loading or unloading work has been performed by determining whether the cargo door is closed or open based on the temperature change curve indicating the temperature change state in the cargo compartment. it can. Moreover, the work content at that time can be specified based on the length of time the door is open.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the invention will be described with reference to the drawings. 1 to 3 show an embodiment of the present invention. First, in FIG. 1, reference numeral 1 denotes a freezer vehicle (an example of a cold storage vehicle) having a luggage compartment 2 formed of a freezer at the rear, and food such as fish and meat to be frozen (an example of a cold storage vehicle) 3) is loaded appropriately. 4a, 4b and 4c are temperature sensors for detecting the temperature inside the cargo compartment 2, and in the illustrated example, a portion close to the door 5 provided at the rear of the cargo compartment 2, the back side of the cargo compartment 2 (driver's seat side), It is provided at three locations in the center of the luggage compartment 2.
[0010]
An operation management meter 6 is provided in the vicinity of the driver's seat 7 of the refrigerator 1. As shown in FIG. 2, for example, the operation management meter 6 includes a CPU 8, a ROM 9, a RAM 10, a clock circuit 11, a power circuit 12, an interface 13, and the like, and includes a speed sensor 14, an engine speed sensor 15, the temperature sensor 4a, 4b, 4c and other recording media on which the output signals from various sensors provided in the refrigerator 1 and work item information input by the registration terminal 16 (see FIG. 1) are detachably attached to the operation management meter 6 The memory card 17 (see FIG. 1) is recorded over time.
[0011]
In FIG. 1, reference numeral 18 denotes a computer as an information processing apparatus, which includes a computer main body 19, an input keyboard 20, a display 21 and a printer (not shown). Reference numeral 22 denotes a reading device connected to the computer main body 19, which reads the contents of the memory card 17 loaded and sends it to the computer main body 19. These devices 18 and 22 are installed, for example, in an office of a shipping company.
[0012]
In FIG. 1, reference numeral 23 denotes a cargo loading / unloading platform provided in the building 24 of the cargo collection / delivery center. Reference numeral 25 denotes a bellows-shaped blocking sheet provided above the platform 23.
[0013]
Next, operation | movement of the operation management system in the refrigerator car 1 of the said structure is demonstrated, referring also to FIG. In FIG. 3, the horizontal axis indicates the time, the temperature change state of the temperature sensor 4 a provided in the vicinity of the door 5 at the rear of the cargo compartment 2 (the curve indicated by T in the figure), and the traveling in the refrigerator 1. The state (thick line I shown below the time axis in the figure) and the unloading state (thick line II shown below the time axis in the figure) are shown.
[0014]
Oite the refrigerator car 1 having the above configuration, if started operations, detection signals from various sensors are provided to it is inputted as data to the operation control meter 6 are recorded in the memory card 17 with the lapse of time The
[0015]
First, when the freezer 1 delivers the cargo 3 to each of the delivery destinations 26 to 29 , the cargo room 2 is opened in the cargo loading / unloading platform 23 provided in the building 24 of the cargo collection and delivery center. The cargo 3 to be delivered in the state is loaded, and when this loading is completed, the door 5 is closed. The output of the temperature sensor 4a in the luggage compartment 2 immediately after the door 5 is closed is not necessarily constant as shown by the curve T in FIG.
[0016]
That is, immediately after the cargo 3 is loaded into the cargo compartment 2, the temperature inside the cargo compartment 2 (hereinafter simply referred to as the interior) is high as indicated by symbol A in FIG. As shown in FIG. 2, the room temperature increases and rapidly decreases, as indicated by symbol B. During traveling, a predetermined temperature is maintained with a small change, as indicated by C. When the door 5 is opened for unloading, the temperature in the cargo compartment 2 increases rapidly as shown by the symbol D. When the door 5 is opened to take out the cargo 3, the symbol E The temperature rises as shown.
[0017]
Then, when the vehicle travels with the door 5 closed again, the temperature in the cargo compartment 2 rapidly decreases as indicated by reference numeral F, and maintains a predetermined temperature while changing slightly as indicated by reference numeral G during traveling. Hereinafter, when the door 5 is opened, the temperature in the cargo compartment 2 increases as indicated by symbols H and K, and when unloading is performed, the temperature further increases as indicated by symbols I and K. During traveling, the temperature does not change significantly as indicated by the symbol J.
[0018]
In general, when freight is delivered by the freezer 1, the freezer 1 that has left the freight collection and delivery center only delivers it to a store or a home. Therefore, as described above, a curve indicating the temperature change state. If there is a portion where the temperature is rapidly increased at T, it can be determined that the door 5 of the luggage compartment 2 is open at that time and unloading has been performed. In this case, even if the crew member has forgotten to register the work content by the registration terminal 16 , the content can be specified.
[0019]
This is because when the door 5 for unloading has been opened for a relatively long time and when the door 5 has not been opened for a very long time, there is a difference in the temperature rise in the luggage compartment 2 , and therefore the same unloading is performed. However, whether or not unloading takes a long time can be distinguished by observing this temperature state, and whether or not the originally scheduled work was performed according to the determined schedule. It can also be judged together.
[0020]
Furthermore, the above determination can be made more comprehensively by matching the temperature change curve T with the vehicle speed change curve. In addition, it is possible to discover dangerous acts during business (such as traveling without closing the door 5).
[0021]
Needless to say, various examinations on the temperature change curve T and the vehicle speed change curve are performed after the completion of a predetermined delivery operation at an office of a shipping company or the like.
[0022]
In the above-described embodiment , the three temperature sensors 4a, 4b, and 4c are provided in the luggage compartment 2, but the present invention is not limited to this, and any location where the open / close state of the door 5 can be best understood. The installation location is also arbitrary.
[0023]
【The invention's effect】
According to the operation management system for a cold insulated vehicle of the present invention, it is possible to determine whether the door of the cargo compartment is closed or open based on the temperature change curve indicating the change state of the temperature in the cargo compartment. Since it is possible to determine the length of the open time, it is possible to identify what work was being performed when the door was open. Therefore, even if the crew member has forgotten to register the work contents, the contents can be specified. Further, it is not necessary to provide a special sensor for detecting the open / closed state of the door.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing an example of a configuration of an operation management system in a cold insulated vehicle according to the present invention.
FIG. 2 is a diagram schematically showing an example of a configuration of an operation management meter used in the system.
FIG. 3 is a diagram for explaining the operation of the system;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Cold storage vehicle ( refrigeration vehicle) , 2 ... Cargo compartment, 4a, 4b, 4c ... Temperature sensor, 5 ... Door, 6 ... Operation management meter, 17 ... Recording medium ( memory card) .

Claims (1)

Various data necessary for vehicle operation management, including output signals from various sensors provided in the vehicle and work items input from the registration terminal, are recorded on a recording medium that is detachably mounted on an operation management meter mounted on the vehicle. It was recorded over time, in the operation control system in a cold vehicle that is configured to so that reading the reading device installed in a fixed position to the recording contents of the recording medium, provided with a temperature sensor to luggage compartment of the cold vehicle, A temperature change curve indicating a change state of the temperature in the cargo compartment detected by the temperature sensor and a speed change curve of the vehicle are recorded on the recording medium, and the opening / closing state of the door of the cargo compartment based on the recorded temperature change curve and and to identify the work in the relevant vehicle by butting of the speed change curve determination and vehicle time length that open the door Traffic control system in a cold vehicle characterized and.

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