JP2017186035A - Thermal insulation container and management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thermal insulation container in which temperature sensors are installed at positions at which the temperature sensors can preferably estimate an internal temperature and a management device for performing temperature managing of the thermal insulation container.SOLUTION: Temperature sensors 7 are disposed at positions which are separated by 10 cm or more from a ridge part being a joint of each wall part of a freely foldable thermal insulation container 5 and at which influence of temperature change due to opening/closing of the thermal insulation container 5 is small. A server device 9 calculates an estimation internal temperature near the center of each thermal insulation container 5 on the basis of measurement information Sa of the temperature sensors 7 received from a terminal device 2. Then, the server device 9 determines the presence/absence of abnormality of the internal temperature of each thermal insulation container 5 on the basis of the estimation internal temperature.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a technique for managing the internal temperature of a thermal insulation container to be transported.

  2. Description of the Related Art Conventionally, a technique for performing temperature management of a package to be delivered is known. For example, Patent Document 1 includes an upper opening / closing member that opens and closes an upper portion of a front opening and a lower opening / closing member that opens and closes a lower portion of the front opening, and a temperature detector is provided on an inner wall below the upper opening / closing member. A cold storage is disclosed.

Japanese Patent No. 4169877

  In a system in which luggage is stored in a thermal insulation container and the temperature in the thermal insulation container is individually managed by a temperature regulation material such as a cold insulation material, each thermal insulation is determined in order to determine the introduction of the temperature regulation material into each thermal insulation container. It is necessary to install a temperature sensor in the cold container and monitor the internal temperature. At this time, since the temperature sensor installed in each heat insulation cold container is installed on the wall surface of the heat insulation cold container, a temperature difference is generated between the internal temperature near the center of the heat insulation cold container. In addition, the above-mentioned temperature difference varies depending on the installation position of the temperature sensor, and when the heat-insulated container is a foldable type, a gap is likely to be generated between the panels constituting the inner wall. It is necessary to determine the installation position of the temperature sensor in consideration. In view of the above, the main object of the present invention is to provide a heat insulating container with a temperature sensor installed at a position where the internal temperature can be suitably estimated, and a management device for managing the temperature of the heat insulating container.

  One aspect of the present invention is a foldable heat insulating cold container, comprising an opening, an opening / closing member capable of opening and closing the opening, and a temperature detector provided on an inner wall surface of the heat insulating cold container, The said temperature detector is provided in the location 10 cm or more away from the ridge part of the said thermal insulation cool container.

  In one aspect of the above-mentioned heat and cold insulation container, the opening is provided on the front surface of the heat and cold container, and the temperature detector is below the center of the heat and cold container, and It is provided on the inner wall surface on the side surface of the heat insulating container that is closer to the rear surface than the inner wall surface on the rear surface or the front surface.

  In another aspect of the above-mentioned heat and cold insulation container, the temperature detector is a panel whose end is closed by a panel constituting the other inner wall surface among the panels constituting the inner wall surface of the heat and cold insulation container. Provided on the inner wall surface.

  In another aspect of the above-described heat and cold insulation container, the heat and cold insulation container has an inner wall surface formed by a panel including a vacuum heat insulating material.

  In another aspect of the present invention, the thermal insulation container according to any one of claims 1 to 4 and a management device that receives measurement information of a temperature detector provided on an inner wall surface of the thermal insulation container. The management apparatus includes: a receiving unit that receives measurement information of the temperature detector; and a measurement unit that receives the measurement information from the temperature detector. Estimation means for estimating the temperature of the object to be processed, and abnormality determination means for determining abnormality of the internal temperature of the heat insulation container or the temperature of the object based on the estimated value of the temperature estimated by the estimation means.

  In one aspect of the management system, the receiving means further receives measurement information of a temperature detector that measures the external temperature of the heat insulating container, and the estimating means measures the temperature detector provided on the inner wall surface. The estimated value is calculated based on information and measurement information of a temperature detector that measures the external temperature.

  In another aspect of the management system, the management system further includes an output device that is present in a vehicle on which the thermal insulation container is placed, and the management device is based on the result of the abnormality determination by the abnormality determination unit, The apparatus further includes transmission means for transmitting an instruction signal for outputting a warning to the output device.

  ADVANTAGE OF THE INVENTION According to this invention, the measurement temperature in which the influence of the heat inflow or heat outflow which arises in the ridge part of the heat insulation cooler container comprised so that folding was possible was reduced suitably is acquirable.

It is a figure showing a schematic structure of a temperature management system concerning an embodiment. The structural example of a heat insulation cold container is shown. The storage state when the heat insulating container is not used is shown. It is a block diagram of a terminal device and a server apparatus. The data structure of delivery schedule DB, temperature management DB, and temperature storage DB is shown. It is the figure which showed the temperature transition in the vicinity of the wall part of a thermal insulation container when the external temperature of the thermal insulation container whose internal temperature of the center vicinity is 10 degrees C or less is 20 degreeC, 30 degreeC, 40 degreeC, and 50 degreeC, respectively. . It is a figure which shows the outline | summary which estimates the internal temperature of the center vicinity of a heat insulation cold container from the external temperature of a heat insulation cold container. It is the figure which clarified the sensor installation area. It is a graph which shows the time change of the measured temperature in the wall surface of a back panel at the time of open | releasing a heat insulation cold storage container intermittently. It is a graph which shows the time change of the measurement temperature in the wall surface of the side panel at the time of open | releasing a heat insulation cold container intermittently. The graph of arrangement | positioning of the temperature sensor in an experiment and measurement temperature is shown. It is a figure which shows schematic structure of the temperature management system which concerns on a modification.

  Embodiments according to the present invention will be described below with reference to the drawings.

[Outline of thermal management system]
FIG. 1 is a diagram illustrating a schematic configuration of a temperature management system 100 according to the embodiment. The temperature management system 100 is a system that manages the internal temperature of the thermal insulation container 5 loaded on the loading platform (container) 10 of the delivery vehicle 1, and mainly includes the delivery vehicle 1 and the delivery as shown in FIG. The terminal device 2 present in the vehicle 1, the parent device 3 present in the loading platform 10, a heat and cold container 5 that accommodates a package to be transported, and a server device 9 that communicates with the terminal device 2. The loading platform 10 may be provided with a temperature controller that adjusts the temperature in the loading platform 10.

  The heat insulation cold container 5 includes a vacuum heat insulating material inside each panel serving as a partition, and is configured to be foldable. In the heat insulation cold container 5, one or a plurality of luggage to be stored in the same temperature zone is accommodated, and a temperature sensor 7 described later is attached. In the heat insulation cold container 5, an internal temperature band (also referred to as “allowable temperature range”) that should be kept in order to prevent deterioration of the stored baggage is defined for each heat insulation cold container 5. A temperature adjusting material 8 such as a cold insulating material for adjusting the internal temperature is appropriately accommodated. In the present embodiment, the temperature adjusting material 8 is appropriately added by the driver so that the internal temperature of the heat insulating container 5 is maintained in a predetermined allowable temperature range. Thereby, the internal temperature of the thermal insulation container 5 is adjusted without requiring a power source.

  The terminal device 2 functions as a management device having a communication function, and performs wired or wireless serial communication with the parent device 3 and wireless communication with the server device 9. When the terminal device 2 receives the measurement information generated by the temperature sensor 7 (also referred to as “measurement information Sa”) from the parent device 3, the terminal device 2 associates it with the track ID of the delivery vehicle 1, the current position information, and the like. Forward to.

  The base unit 3 is installed in the loading platform 10 and is connected to the terminal device 2 via a cable or the like. Moreover, the main | base station 3 receives the measurement information Sa which the temperature sensor 7 installed in the thermal insulation container 5 transmits. Then, the base unit 3 transmits the received measurement information Sa to the terminal device 2.

  The temperature sensor (temperature detector) 7 is a module having a function of measuring temperature and a communication function, and transmits measurement information Sa. In addition to the temperature and date / time information measured by the temperature sensor 7, the measurement information Sa includes identification information (also referred to as “sensor ID”) given to the temperature sensor 7. As will be described later, the temperature sensor 7 is provided at a position at least 10 cm away from a boundary portion (also referred to as a “ridge portion”) of the wall surface of the heat insulating and cooling container 5. Further, in order to measure the external temperature of the heat insulation cold container 5 (that is, the temperature in the cargo bed 10), the temperature sensor 7 is provided at an arbitrary position in the cargo bed 10 that is outside the heat insulation cold container 5.

  The server device 9 manages the delivery schedule of the packages delivered by the delivery vehicle 1 and the temperature of the packages. Based on the measurement information Sa received from the terminal device 2, the server device 9 calculates an estimated value (also referred to as “estimated internal temperature”) of the internal temperature in the vicinity of the center of each of the thermal insulation containers 5. And the server apparatus 9 memorize | stores the log | history of the estimated internal temperature for every heat insulation cooler container 5, or monitors the presence or absence of abnormality of the internal temperature of each heat insulation cooler container 5 based on estimated internal temperature. The server device 9 is an example of the “management device” in the present invention.

[Configuration example of a heat and cold container]
FIG. 2 shows an example of the structure of the heat and cold container 5. In addition, the aspect of the thermal insulation container 5 applicable to this invention is not restricted to the aspect shown in FIG. 2, The arbitrary aspects other than FIG. 2 may be sufficient.

  2 mainly includes a top panel 11, front panels 12L and 12R (12) for opening and closing the opening 18, a left panel 13, a back panel 14, and a right panel 15. And the bottom panel 16, and these panels form the wall portion of the heat and cold insulating container 5. A vacuum heat insulating material is incorporated in these panels. A plurality of holding portions 19 that can accommodate objects are provided on the inner wall surface of the back panel 14 or the like. For example, the temperature sensor 7 or the temperature adjusting material 8 is accommodated in the holding unit 19. The top panel 11, the left panel 13, the back panel 14, the right panel 15, and the bottom panel 16 are covered with an exterior bag (not shown).

  As shown in FIG. 2, the front panel 12 </ b> L is rotatably connected to the left side panel 13, and the front panel 12 </ b> R is rotatably connected to the right side panel 15. The front panels 12L and 12R are examples of the “opening / closing member” in the present invention, and the opening 18 is configured to be openable and closable. In addition, the front panel 12 is not limited to the aspect divided into the left and right as in the example of FIG. In this case, the divided front panel 12 may be rotatably connected to the left side panel 13 or the right side panel 15 and may be rotatably connected to the top panel 11 or the bottom panel 16. May be.

  Moreover, the heat insulation cold storage container 5 is configured to be foldable, and is managed in a folded state when not in use. 3A shows the arrangement of the front panel 12, the left side panel 13, the back panel 14, the right side panel 15, and the bottom panel 16 during use. In the example of FIG. 3A, the outer bag 30 is disposed so as to cover the top panel 11, the left side panel 13, the back panel 14, the right side panel 15, and the bottom panel 16. Moreover, FIG. 3 (B) shows the heat insulation cold container 5 in a state where the front panel 12, the left side panel 13, the back panel 14, the right side panel 15, and the bottom panel 16 are folded when not in use. In the example of FIG. 3, the back panel 14 and the left side panel 13 and the back panel 14 and the right side panel 15 are connected by a cloth or the like. And when storing the heat insulation cold storage container 5, after piled up the bottom face panel 16 on the back panel 14, the left side panel 13 and the right side panel 15 are piled up in order. Thereby, the heat insulating cold container 5 will be in the folded state.

[Configuration of terminal device]
FIG. 4A is a block diagram of the terminal device 2. The terminal device 2 mainly includes a display unit 21 such as a display and a lamp, an input unit 22, a storage unit 23, a communication unit 24, a control unit 25, a GPS receiver 26, and a sound output unit such as a speaker. 27. Each of these elements is connected to each other via a bus line 20.

  The input unit 22 is, for example, a touch panel, a button, a voice input device, and the like, and receives input from a driver or the like. The storage unit 23 stores a program executed by the control unit 25 and information necessary for processing executed by the control unit 25. The communication unit 24 performs data communication with the parent device 3 and the server device 9 based on the control of the control unit 25. The GPS receiver 26 generates position information indicating the current position of the delivery vehicle 1.

  The control unit 25 includes a CPU, a ROM, a RAM, and the like (not shown), and performs various controls on each component in the terminal device 2 by executing a program stored in the storage unit 23. For example, the control unit 25 controls the communication unit 24 to add the position information measured by the GPS receiver 26 to the measurement information Sa received from the parent device 3 and transfer the measurement information Sa to the server device 9. In addition, when the control unit 25 receives an instruction signal to the effect that a warning regarding the internal temperature of the thermal insulation container 5 should be output from the server device 9 by the communication unit 24, the control unit 25 applies the temperature to the thermal insulation container 5 based on the instruction signal. A warning that the adjustment material 8 should be put in is output by the display unit 21 and / or the sound output unit 27.

[Configuration of server device]
FIG. 4B is a block diagram of the server device 9. As illustrated in FIG. 4B, the server device 9 mainly includes a storage unit 93, a communication unit 94, and a control unit 95.

  The storage unit 93 stores a program executed by the control unit 95 and information necessary for processing executed by the control unit 95. In the present embodiment, the storage unit 93 includes a delivery schedule DB 96 that records information related to the delivery schedule of the package to be delivered, a temperature management DB 97 that records the allowable temperature zone of the insulated and insulated container 5 to be delivered, and the temperature of the insulated and insulated container 5. And a temperature accumulation DB 98 in which the history is recorded. Specific examples of data structures of the delivery schedule DB 96, the temperature management DB 97, and the temperature accumulation DB 98 will be described later. The communication unit 94 performs data communication with the terminal device 2 based on the control of the control unit 95.

  The control unit 95 includes a CPU, a ROM, a RAM, and the like (not shown), and controls the entire server device 9 by executing a program stored in the ROM, the storage unit 93, or the like. For example, when the communication unit 94 receives the measurement information Sa from the terminal device 2, the control unit 95 calculates the estimated internal temperature based on the measurement information Sa. A method for calculating the estimated internal temperature will be described later. Then, the control unit 95 updates the temperature accumulation DB 98 based on the calculated estimated internal temperature, and determines whether there is a temperature abnormality with reference to the temperature management DB 97. In addition, as a result of referring to the calculated estimated internal temperature and temperature management DB 97, the control unit 95 determines that there is an abnormality in the internal temperature of the target thermal insulation container 5, the ID (" A warning instruction signal including “box ID” is also generated and transmitted to the terminal device 2 by the communication unit 94. The control unit 95 is an example of the “reception unit”, “estimation unit”, “transmission unit”, and “abnormality determination unit” in the present invention.

[data structure]
Next, the data structure of each database will be described with reference to FIG.

  FIG. 5A shows an example of the data structure of the delivery schedule DB 96. The delivery schedule DB 96 shown in FIG. 5A includes items of “package ID”, “track ID”, “box ID”, “sensor ID”, “delivery scheduled date”, and “delivery place”.

  In the item “package ID”, a package ID which is identification information of a package to be transported is recorded. In the item “Track ID”, the track ID of the vehicle that transports the package with the corresponding package ID is recorded. In the item “box ID”, a box ID, which is identification information of the heat insulating container 5 in which the luggage with the corresponding luggage ID is accommodated, is recorded. In the item of “sensor ID”, the sensor ID of the temperature sensor 7 installed in the heat insulating cold container 5 indicated by the corresponding box ID is recorded. In the “scheduled delivery date and time” item, the scheduled date and time for completing delivery of the package with the corresponding package ID is recorded. In the item “delivery location”, the address of the delivery destination of the package with the corresponding package ID is recorded. The delivery schedule DB 96 may be subdivided into a plurality of databases. For example, the delivery schedule DB 96 may include a database in which a package ID, a track ID, a box ID, and a sensor ID are associated with each other, and a database in which a package ID, an estimated delivery date and time, and a delivery location are associated with each other. .

  FIG. 5B is an example of the data structure of the temperature management DB 97. The temperature management DB 97 shown in FIG. 5B has an item “box ID” and an item “allowable temperature range”. In the “box ID” item, the box ID of each heat insulating container 5 in which the package to be transported is stored is recorded. In the item “permissible temperature range”, the allowable temperature range of the luggage stored in the heat insulating container 5 indicated by the corresponding box ID is recorded.

  Here, a supplementary description will be given of a specific example of the abnormality determination of the internal temperature of the heat insulation cold container 5 with reference to the temperature management DB 97.

  For example, when the server device 9 receives the measurement information Sa from the terminal device 2, the server device 9 specifies the box ID corresponding to the sensor ID included in the measurement information Sa with reference to the delivery schedule DB 96 shown in FIG. Then, the allowable temperature zone corresponding to the specified box ID is extracted from the temperature management DB 97 shown in FIG. Then, the server device 9 compares the allowable temperature range extracted from the temperature management DB 97 with the estimated internal temperature calculated from the target measurement information Sa, so that the internal temperature of the thermal insulation container 5 indicated by the specified box ID is determined. Determine if there is an abnormality. A method for calculating the estimated internal temperature will be described later. When the estimated internal temperature calculated from the target measurement information Sa deviates from the allowable temperature range extracted from the temperature management DB 97, the server device 9 outputs a warning instruction signal including the box ID of the target heat insulation container 5 and the like. Is transmitted to the terminal device 2. In this case, based on the received instruction signal, the terminal device 2 outputs the box ID or the like of the thermal insulation container 5 in which the internal temperature is abnormal, and inputs the temperature adjustment material 8 to the target thermal insulation container 5 to the passenger. A warning prompting In addition, as will be described later, the temperature sensor 7 installed on the inner wall of the heat and cold insulation container 5 is provided at a position where a sudden change in temperature due to opening and closing of the heat and cold insulation container 5 is unlikely to occur. Thereby, in a present Example, the output of the unnecessary warning resulting from the sudden change of the estimated internal temperature accompanying opening and closing of the heat insulation cold storage container 5 is suppressed suitably.

  FIG. 5C is an example of the data structure of the temperature accumulation DB 98. The temperature accumulation DB 98 shown in FIG. 5C has items of “box ID”, “temperature”, “date / time”, and “position”. The server device 9 generates a record of the temperature accumulation DB 98 for each received measurement information Sa.

  In the “box ID” item, a box ID corresponding to the sensor ID included in the measurement information Sa received from the terminal device 2 is recorded. In the “temperature” item, the estimated internal temperature calculated from the target measurement information Sa is recorded. In the “date and time” item, the date and time indicated by the date and time information included in the target measurement information Sa is recorded. In the item “position”, latitude and longitude based on the position information of the delivery vehicle 1 transmitted from the terminal device 2 together with the target measurement information Sa is recorded.

[Calculation of estimated internal temperature]
Next, a method for calculating the estimated internal temperature will be described. The server device 9 calculates the estimated internal temperature of each of the heat insulation cold containers 5 in the loading platform 10 outside the heat insulation cold container 5 and the measurement information Sa generated by the temperature sensor 7 installed in the heat insulation cold container 5. Calculation is performed based on the measurement information Sa generated by the installed temperature sensor 7.

  FIG. 6 shows the temperature transition in the vicinity of the wall of the thermal insulation container 5 when the external temperature of the thermal insulation container 5 whose internal temperature near the center is 10 ° C. or less is 20 ° C., 30 ° C., 40 ° C., and 50 ° C., respectively. FIG. The plots 62 to 65 show the inner wall temperature of the heat insulating container 5 corresponding to the case where the external temperature is 20 ° C, 30 ° C, 40 ° C, and 50 ° C.

  As shown in FIG. 6, at any external temperature, the temperature gradually decreases so as to approximate the internal temperature of the heat insulation cold container 5 from the outside to the inside of the heat insulation cold container 5. And as shown to the plots 62-65, the inner wall temperature of the heat insulation cold storage container 5 changes according to external temperature. Then, depending on the degree of temperature decrease from the external temperature of the heat insulation cold container 5 to the inner wall temperature of the heat insulation cold container 5, the temperature decrease from the inner wall temperature of the heat insulation cold container 5 to the internal temperature near the center of the heat insulation cold container 5 The degree of is different.

  In consideration of the above, in the present embodiment, the server device 9 uses the combination of the external temperature and the inner wall temperature of the thermal insulation container 5 respectively identified from the received measurement information Sa, so that the inside of the thermal insulation container 5 in the vicinity of the center. An estimated internal temperature that is an estimated value of the temperature is calculated.

  FIG. 7 is a diagram showing an outline of estimating the internal temperature “T4” in the vicinity of the center of the thermal insulation container 5 from the external temperature “T1” of the thermal insulation container 5. In FIG. 7, “h1” is the heat transfer coefficient outside the heat insulation cooler 5, “h2” is the heat transfer coefficient inside the heat insulation cooler 5, “λ” is the thermal conductivity of the wall of the heat insulation cooler 5, “T2” indicates the temperature at the outer wall surface of the heat insulating cooler 5, “T3” indicates the temperature of the inner wall of the heat insulating cooler 5, and “L” indicates the length of the thickness of the wall of the heat insulating cooler 5.

In this case, since the change between the outside air temperature of the heat insulation cold container 5 and the internal temperature of the heat insulation cold container 5 is gradual, the following equation is established when considered as a quasi-steady state.
{1 / (1 / h1 + L / λ)} × (T1−T3) = h2 × (T3−T4) Equation (1)

When this equation is transformed, the following equation (2) for the temperature T4 is obtained.
T4 = T3−h1 × λ × (T1−T3) / {h2 × (λ + h1 × L)} Expression (2)

Here, λ, L, h1, and h2 in Expression (1) can be obtained in advance based on measurement or the like. For example,
h1 = 10 (W / m2 · K),
h2 = 4 (W / m2 · K),
L = 0.3 (m)
λ = 0.01 (W / m · K)
Then, Formula (2) is represented as the following Formula (3).
T4 = T3-8.306 × 10 ⁻³ × (T1-T3) Formula (3)

  Therefore, the server device 9 uses the equation (3) to measure the temperature T1 from the temperature sensor 7 installed outside the heat insulation container 5 and the temperature T3 from the temperature sensor 7 installed inside the heat insulation container 5. By setting the value, the temperature T4 corresponding to the estimated internal temperature can be suitably calculated. In this way, the server device 9 can create in advance an estimated internal temperature equation using the external temperature of the heat insulating container 5 and the inner wall temperature of the heat insulating container 5 as parameters, or a map corresponding thereto. Note that the calculation method of the estimated internal temperature based on the above-described formula (3) is an example, and the estimated internal temperature may be calculated by other various calculation methods.

  Instead of the description of FIG. 7, the internal temperature in the vicinity of the center of the thermal insulation container 5 with respect to the external temperature of various thermal insulation containers 5 and the inner wall temperature of the thermal insulation container 5 is measured by experiments, and is created based on the experimental results. The server device 9 may store the formula or map or the like previously stored. Even in this case, similarly, the server device 9 can suitably obtain the estimated internal temperature from the external temperature of the heat and cold insulation container 5 indicated by the measurement information Sa and the inner wall temperature of the heat and cold insulation container 5.

[Temperature sensor installation position]
Next, the installation position of the temperature sensor 7 installed on the inner wall surface of the heat insulation cold container 5 will be described. As a first condition, the temperature sensor 7 is positioned at a position where the variation in temperature difference between the measured temperature of the temperature sensor 7 and the internal temperature near the center of the thermal insulation container 5 becomes small in order to increase the calculation accuracy of the estimated internal temperature. Preferably it is provided. Further, as the second condition, it is preferable that the temperature sensor 7 is provided at a position where the above-described temperature difference becomes small. Further, as a third condition, the temperature sensor 7 is provided at a position where the change in temperature measured by the temperature sensor 7 is small and the temperature change is similar to the luggage in the heat insulation container 5 when the heat insulation container 5 is opened. It is preferred that A specific example of the installation position of the temperature sensor 7 that satisfies these first to third conditions will be described with reference to FIG.

  FIG. 8 is a view clearly showing a region (also referred to as “sensor installation region”) Rs1 to Rs3 that is suitable as a mounting position of the temperature sensor 7 on the inner wall surface of the heat insulating and cooling container 5. In FIG. 8, as shown in FIG. 2, sensor installation candidate regions Rs1 to Rs3 in the heat insulating cooler 5 in which the front panel 12 can be opened and closed are shown. In the example of FIG. 8, on the inner wall surfaces of the left side panel 13, the back panel 14, and the right side panel 15 excluding the top panel 11 and the front panel 12 to be opened and closed and the bottom panel 16 on which the load is placed, Sensor installation areas Rs1-Rs3 exist.

  Here, each sensor installation region Rs1-Rs3 is provided at a position away from the front panel 12 where the opening and closing is performed (that is, a position close to the rear panel 14) in consideration of a temperature change at the time of opening and closing of the heat and cold insulation container 5. . In the example of FIG. 8, the sensor installation regions Rs1 and Rs3 of the left side panel 13 and the right side panel 15 are near the center in the depth direction of the heat insulating cooler 5 (see the dashed lines 41 and 42) or from the back panel closer to the center. It exists at a position close to 14. Further, in consideration of the experimental results of FIGS. 9-10 to be described later, each sensor installation region Rs1-Rs3 is provided closer to the bottom panel 16 than the center (see the one-dot chain line 40) in the height direction of the thermal insulation container 5. Yes. By doing in this way, it can suppress suitably that the temperature which the temperature sensor 7 measures at the time of opening / closing of the thermal insulation container 5 can be suppressed suitably, and the above-mentioned 3rd condition is satisfy | filled.

  Furthermore, each sensor installation area | region Rs1-Rs3 is provided in the position 10 cm or more away from the ridge part which is a connection part of each wall part. Specifically, the sensor installation region Rs1 is 10 cm away from the ridges 50 and 53, the sensor installation region Rs2 is 10 cm away from each of the ridges 50 to 52, and the sensor installation region R3 is 10 cm away from the ridges 52 and 54. ing. Moreover, each sensor installation area | region Rs1-Rs3 is separated 10 cm or more from ridge parts other than the ridge parts 50-54. Thereby, the excessive change of the measurement temperature of the temperature sensor 7 by the heat inflow in the joint part of a wall part or a heat outflow can be suppressed suitably, and the above-mentioned 1st and 2nd conditions are satisfy | filled.

  Next, a supplementary explanation will be given with reference to FIG. 9-10 that the above-mentioned third condition is satisfied when the temperature sensor 7 is installed at an arbitrary position in the sensor installation region Rs1-Rs3 described in FIG. .

  FIG. 9A is a graph “G1” to “G3” showing the time variation of the measured temperature on the inner wall surface of the back panel 14 of the heat insulating container 5 that can open and close the front panel 12 as in the configuration example of FIG. ”, A graph“ Ga ”indicating the measured temperature at the center of the space of the heat insulating container 5, and a graph“ Gb ”indicating each time change in the measured temperature of the luggage in the heat insulating container 5. FIG. 9B shows the installation positions of the temperature sensors 7 in the inner wall surface of the back panel 14 corresponding to the graphs G1 to G3 in FIG. 9A.

  As shown by a graph G1 in FIG. 9A, when the temperature sensor 7 is installed on the relatively upper side of the back panel 14 (that is, on the top panel 11 side), the temperature rise due to opening and closing of the heat and cold insulation container 5 is large. On the other hand, as shown in the graph G2, when the temperature sensor 7 is installed at a relatively central portion of the back panel 14, the temperature information associated with opening and closing of the heat insulation container 5 is small and similar to the temperature of the luggage (see graph Gb). Shows behavior. Here, the sensor installation region Rs <b> 2 in FIG. 8 exists at a position relatively close to the center portion of the back panel 14. Therefore, when the temperature sensor 7 is installed at an arbitrary position in the sensor installation region Rs2, the change in the measured temperature of the temperature sensor 7 when the heat insulation cold container 5 is opened is small, which is similar to the luggage in the heat insulation cold container 5. The temperature changes and the third condition described above is satisfied.

  FIG. 10 (A) is a graph “G4” showing the change over time in the measured temperature on the inner wall surface of the side panel (left side panel 13 or right side panel 15) when the heat insulating cooler 5 is intermittently opened. To “G6”, a graph “Gc” indicating the measured temperature at the center of the space of the heat insulating container 5, and a graph “Gd” indicating each time change in the measured temperature of the luggage in the heat insulating container 5 are shown. FIG. 10B shows the installation positions within the inner wall surface of the side panel of each temperature sensor 7 corresponding to the graphs G4 to G6 in FIG.

  As shown in the graph G4 in FIG. 10A, when the temperature sensor 7 is installed on the relatively upper side of the side panels 13 and 15 (that is, on the top panel 11 side), the temperature rise associated with the opening and closing of the heat insulation container 5 is increased. large. On the other hand, as shown in the graph G5, when the temperature sensor 7 is installed at the relatively central portion of the side panels 13 and 15, the temperature information associated with the opening and closing of the thermal insulation container 5 is small, and the temperature of the luggage (see graph Gd) Shows similar behavior. Here, the sensor installation regions Rs1 and Rs3 in FIG. 8 exist at positions relatively close to the central portions of the side panels 13 and 15. Therefore, when the temperature sensor 7 is installed at an arbitrary position in the sensor installation regions Rs1 and Rs3, the change in the measured temperature of the temperature sensor 7 when the heat insulation cold container 5 is opened is small, and the luggage in the heat insulation cold container 5 The temperature change is similar, and the third condition described above is satisfied.

  In addition, when outside temperature is lower than the storage temperature by the heat insulation cold container 5, since the inflow of the cold air from the lower side of the heat insulation cold container 5 is considered, when the storage temperature by the heat insulation cold container 5 is lower than external temperature Similarly, it is preferable to install near the center of the back panel 14 or the side panels 13 and 15. Therefore, even when the outside air temperature is lower than the storage temperature in the heat insulation container 5, when the temperature sensor 7 is installed at an arbitrary position in the sensor installation region Rs1-Rs3 described in FIG. In addition to the conditions, the third condition described above is satisfied.

  Next, a supplementary explanation will be given with reference to FIG. 11 that the above first and second conditions are satisfied when the temperature sensor 7 is installed at an arbitrary position within the sensor installation region Rs1-Rs3 described in FIG. To do.

  FIG. 11A shows the arrangement of the temperature sensor 7 in the experiment. In FIG. 11 (A), the temperature of the back panel 14 and the left side panel 13 on the inner wall in the vicinity of the ridge 50, which is the joint between the back panel 14 and the left side panel 13, is 8 cm at intervals of 2 cm. A sensor 7 is provided. In the configuration example of FIG. 11A, all the end portions of the left side panel 13 including the end portion 130 are closed by other panels such as the back panel 14 (that is, in surface contact). On the other hand, the end 140 of the back panel 14 is exposed without contacting the left side panel 13. FIG. 11B is a graph based on the measurement result of the temperature sensor 7 shown in FIG. 11A, and the vertical axis indicates the average or variance of the temperature difference between the internal space temperature and the measured temperature on the inner wall. The axis indicates the distance from the ridge line 50 to the installation position of each temperature sensor 7.

  In FIG. 11 (B), the graph “G11” indicates the time average of the temperature difference between the measured temperature of the temperature sensor 7 installed on the inner wall of the left side panel 13 and the internal space near the center of the thermal insulation container 5. “G12” indicates time-series dispersion of the temperature difference. Further, the graph “G13” shows the time average of the temperature difference between the measured temperature of the temperature sensor 7 installed on the inner wall of the back panel 14 and the internal space near the center of the thermal insulation container 5, and the graph “G14” The time-series variance of the temperature difference is shown.

  As shown in the graphs G11 and G13, in either case of the left side panel 13 or the back panel 14, it is within 10 cm from the ridge 50 regardless of the position of the vacuum heat insulating material (see FIG. 11A). The temperature difference with the internal space of the heat insulating container 5 increases with distance. From this, it is considered that the installation position of the temperature sensor 7 is preferably at least 10 cm away from the ridge. Here, the sensor installation regions Rs <b> 1 to Rs <b> 3 in FIG. 8 are separated from the ridge portion of the heat insulating cold container 5 by 10 cm or more. Therefore, when the temperature sensor 7 is installed at an arbitrary position in the sensor installation regions Rs1 to Rs3, it is possible to suitably suppress an excessive change in the measured temperature of the temperature sensor 7 caused by heat inflow at the ridge, The above first and second conditions are satisfied.

  Further, as shown by graphs G11 to G14 in FIG. 10A, the measured temperature of the temperature sensor 7 installed on the left side panel 13 in which all the ends including the end portion 130 are closed by other panels. In this case, the average and dispersion of the temperature difference from the internal temperature of the heat insulation container 5 are smaller and more stable than the measured temperature of the temperature sensor 7 installed on the back panel 14 where the end 140 is exposed. Thus, it is more preferable that the temperature sensor 7 is installed on a panel (the left side panel 13 in FIG. 10) whose end is closed by another inner wall surface.

[Operation and effect of this embodiment]
According to the present embodiment, the temperature sensor 7 is provided at a position that is 10 cm or more away from a ridge that is a joint between the wall portions of the foldable heat insulating cooler 5. As a result, since the heat-insulated container 5 is foldable, the measured temperature of the temperature sensor 7 is the heat inflow from the ridge even if the heat inflow tends to occur due to the gaps between the panels constituting the wall surface. The temperature change caused by the above is reduced. Therefore, in this aspect, the server device 9 can calculate the estimated internal temperature, which is an estimated value of the internal temperature near the center of the thermal insulation container 5, with high accuracy based on the temperature measured by the temperature sensor 7.

  Further, the temperature sensor 7 is provided at a position where the influence of the temperature change due to the opening and closing of the heat insulating cooler 5 is small. Thereby, it is possible to suitably prevent the estimated internal temperature from deviating from the allowable temperature range due to a sudden change in the measured temperature of the temperature sensor 7 due to the opening and closing of the heat insulating cooler 5. Therefore, it is possible to suitably prevent the instruction signal relating to the warning of the internal temperature of the heat insulation cold container 5 resulting from the opening and closing of the heat insulation cold container 5 from the server device 9 to the terminal device 2, and the terminal device 2 is unnecessary. It is possible to suitably prevent output of a warning.

[Modification]
Next, a modification suitable for the above embodiment will be described. The following modifications can be applied to the above-described embodiments in any combination.

(Modification 1)
The temperature management system 100 shown in FIG. 1 is an example, and the configuration to which the present invention can be applied is not limited to this.

  FIG. 12 shows a configuration of a temperature management system 100A according to a modification. In the temperature management system 100A shown in FIG. 12, the master unit 3A includes the function of the terminal device 2 of the temperature management system 100 shown in FIG. 1 and communicates with the server device 9 without going through the terminal device 2.

  In this aspect, base unit 3 </ b> A transmits measurement information Sa received from temperature sensor 7 to server device 9. Further, when the estimated internal temperature calculated by the server device 9 based on the measurement information Sa is out of the allowable temperature range, the parent device 3A receives an instruction signal related to a warning from the server device 9, and the inside of the heat insulating container 5 A warning about temperature is output to prompt the introduction of the temperature adjusting material 8. As described above, the temperature management system 100A shown in FIG. 12 can suitably manage the internal temperature of the heat insulating container 5 loaded on the cargo bed 10, similarly to the embodiment.

  Moreover, the server apparatus 9 may be comprised from the some terminal connected via a network. In this case, each terminal exchanges information necessary for executing a process assigned in advance with other terminals. For example, the server device 9 may include a terminal that stores the delivery schedule DB 96, the temperature management DB 97, and the temperature accumulation DB 98, and a terminal that executes the processing of the control unit 95 according to the embodiment. Even if it is this aspect, the server apparatus 9 can manage suitably the internal temperature of the thermal insulation container 5 loaded on the loading platform 10 similarly to the Example.

(Modification 2)
Instead of calculating the estimated internal temperature, which is an estimated value of the internal temperature of the thermal insulation container 5, the server device 9 calculates the estimated value (“estimated sample temperature”) of the temperature of the luggage (sample) accommodated in the thermal insulation container 5. May be calculated.

  In this case, in the first example, the server device 9 regards that the internal temperature of the heat insulating container 5 is equal to the temperature of the luggage accommodated in the heat insulating container 5, and uses the same method as the estimated internal temperature of the embodiment. Calculate the estimated sample temperature. In the second example, the server device 9 stores, in advance, a map or expression indicating the relationship between the estimated internal temperature and the estimated sample temperature for each type of luggage and refers to the map or expression. The estimated sample temperature is calculated from the estimated internal temperature calculated based on the example. In these examples, the server device 9 compares the calculated estimated sample temperature with the allowable temperature zone registered in the temperature management DB 97 shown in FIG. Do. Also according to this aspect, the server device 9 can accurately determine abnormality of the temperature of the luggage.

(Modification 3)
The abnormality determination of the internal temperature of the heat insulating container 5 is not limited to the comparison between the allowable temperature zone and the estimated internal temperature, and various determination methods may be adopted.

  For example, instead of or in addition to comparing the allowable temperature range with the calculated estimated internal temperature, the server device 9 provides a threshold value that is estimated to be out of the allowable temperature range for each allowable temperature range. A warning instruction signal may be transmitted to the terminal device 2 when the estimated internal temperature is closer to the allowable temperature range than the threshold value. According to this aspect, the server device 9 can prompt the occupant to input the temperature adjusting material 8 before the internal temperature of the heat insulating container 5 deviates from the allowable temperature range, and the occupant inputs the temperature adjusting material 8. A time margin can be secured.

DESCRIPTION OF SYMBOLS 1 Delivery vehicle 2 Terminal device 3 Main | base station 5 Thermal insulation cold container 7 Temperature sensor 8 Temperature control material 9 Server apparatus 100, 100A Temperature management system

Claims (7)

A foldable heat insulation container,
An opening,
An opening / closing member capable of freely opening and closing the opening;
A temperature detector provided on the inner wall surface of the heat insulation cold container,
The said temperature detector is provided in the location 10 cm or more away from the ridge part of the said thermal insulation cold container, The thermal insulation cold container characterized by the above-mentioned. The opening is provided on the front surface of the heat insulating container,
The temperature detector is
Below the center of the heat and cold container,
2. The heat and cold insulation container according to claim 1, wherein the heat and cold insulation container is provided on the inner wall surface on the back surface of the heat and cold insulation container or on the inner wall surface on the side surface of the heat and cold insulation container closer to the back surface than the front surface.   The temperature detector is provided on an inner wall surface of a panel whose end portion is closed by a panel constituting another inner wall surface among the panels constituting the inner wall surface of the heat insulating container. Item 3. A heat insulating container according to item 1 or 2.   The heat insulation container according to any one of claims 1 to 3, wherein the inner wall surface is formed by a panel including a vacuum heat insulating material. A management system comprising: the heat and cold insulation container according to any one of claims 1 to 4; and a management device that receives measurement information of a temperature detector provided on an inner wall surface of the heat and cold preservation container,
The management device
Receiving means for receiving the measurement information;
From the measurement information, an estimation means for estimating an internal temperature of the heat insulating cold container or a temperature of an object accommodated in the heat insulating cold container;
Based on the estimated value of the temperature estimated by the estimation means, an abnormality determination means for performing an abnormality determination of the internal temperature of the heat insulation container or the temperature of the object,
A management system comprising: The receiving means further receives measurement information of a temperature detector that measures an external temperature of the heat insulating container,
The said estimation means calculates the said estimated value based on the measurement information of the temperature detector provided in the said inner wall surface, and the measurement information of the temperature detector which measures the said external temperature, It is characterized by the above-mentioned. The management system described. Further comprising an output device present in the vehicle on which the thermal insulation container is placed,
The said management apparatus is further equipped with the transmission means which transmits the instruction | indication signal for outputting a warning to the said output device based on the result of the said abnormality determination of the said abnormality determination means. Management system.