JP2018123587A - Pavement material measuring instrument, pavement material management device, and pavement material management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pavement material measuring instrument, pavement material management device, and pavement material management system with which it is possible to easily understand the temperature, viscosity, and moisture content of a pavement material during transportation.SOLUTION: A measuring instrument (as an example of a pavement material measuring instrument) 20 according to an embodiment comprises: a temperature sensor 21 for repeatedly measuring the temperature (as an example of a pavement material physical quantity) of an asphalt mixture loaded on a transport vehicle D; and a communication part 24b for sequentially transmitting to a communication network by wireless means temperature information relating to the temperature of the asphalt mixture measured by the temperature sensor 21.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a pavement measuring instrument, a pavement management device, and a pavement management system.

  Asphalt is a material that has good temperature sensitivity and a viscosity that varies greatly with changes in temperature. As the temperature decreases, the viscosity of asphalt tends to increase. This asphalt is used as a binder for materials that make up the asphalt mixture (a kind of paving material), and is mixed with crushed stones and sand at high temperatures in a facility called a plant (asphalt mixture factory). Asphalt mixture is produced.

  The manufactured asphalt mixture is usually loaded on a transport vehicle and transported to a site (construction site) in a state where a heat insulating sheet (for example, linen) is covered so that the temperature of the asphalt mixture does not decrease. However, when the outside air temperature is low, such as in winter, the temperature of the asphalt mixture decreases before arrival at the site, and the workability is extremely deteriorated due to the temperature decrease of this asphalt mixture (deterioration of workability), the degree of compaction, That is, the pavement density may be insufficient (insufficient density).

  The above-mentioned deterioration of workability may become a physical burden on workers who handle asphalt mixtures with scoops, rakes, etc., and may obstruct material bias and stable construction even in machine construction. In addition, pavement density is one of the important quality control items of pavement. If the above-mentioned density deficiency occurs, rutting occurs early, pavement peeling / scattering occurs, pavement It may become a serious problem after service, such as the infiltration of water under the roadbed due to the poor water tightness of the road, and eventually damage or destruction.

  In addition, in asphalt pavement, if the asphalt finisher, which is a machine that spreads the asphalt mixture at the site, is stopped halfway, unevenness may occur on the pavement surface of that part, and the flatness may be impaired. Since it may be necessary to spread the floor manually, it is important to ensure continuous work as much as possible to ensure quality.

  For this reason, the temperature management of the asphalt mixture is performed in the important points (for example, a plant, the field, etc.) from manufacture to construction of the asphalt mixture. In the plant, the production temperature of the asphalt mixture is automatically measured, and the temperature of the asphalt mixture at the time of shipment is grasped. On the other hand, on the site, a contact-type thermometer is inserted into an asphalt mixture loaded on a transport vehicle (for example, a dump truck) by an operator, and the temperature of the asphalt mixture upon arrival at the site is measured.

  However, in the above-mentioned temperature measurement, even if the temperature of the asphalt mixture at the time of plant shipment is appropriate, the temperature of the asphalt mixture decreases during transportation, and the temperature of the asphalt mixture at the time of arrival at the site becomes just below the standard range, May fall below. For this reason, it is required to control the temperature of the asphalt mixture during transportation. In this case, it is necessary to measure the temperature of the asphalt mixture many times during transportation.

  On the other hand, as the paving material other than the above-mentioned asphalt mixture, for example, a roadbed material such as crushed stone (a kind of paving material) is used. This roadbed material is a material whose water content changes greatly, and if the water content is not suitable for compaction, poor rolling may occur. For this reason, at the shipping place or the site of the roadbed material, for example, a moisture meter is inserted into the roadbed material loaded on the transport vehicle by the operator, and the moisture content of the roadbed material at the time of shipment or arrival at the site is measured.

  However, in the moisture content measurement described above, even if the moisture content of the roadbed material at the time of shipment is appropriate, the moisture content of the roadbed material changes during transportation, and the moisture content of the roadbed material at the time of arrival at the site is just below the standard range. Or may fall outside the standard range. For this reason, although it is calculated | required to manage the moisture content of the roadbed material in conveyance, in this case, it will be necessary to measure the moisture content of a roadbed material many times during conveyance.

  When measuring during transportation as described above, the driver parks the transportation vehicle during transportation and inserts a contact-type thermometer into the asphalt mixture loaded on the transportation vehicle to measure the temperature of the asphalt mixture, Alternatively, it is necessary to insert a contact-type moisture meter into the roadbed material loaded on the transport vehicle to measure the water content of the roadbed material. This is a very troublesome operation for the driver, and also increases the time until the transport vehicle arrives at the site. For this reason, it is required that the temperature of the asphalt mixture being transported and the moisture content of the roadbed material can be easily grasped. As the asphalt mixture, a material having high fluidity such as a goose asphalt mixture may be used. In this case, it is desired to control the viscosity in addition to the temperature.

JP 2003-336210 A JP 2008-088698 A

  The problem to be solved by the present invention is to provide a pavement measuring device, a pavement management device, and a pavement management system that can easily grasp the temperature, viscosity, or moisture content of the pavement during transportation. That is.

  The measuring device for pavement according to claim 1 is a measuring unit that repeatedly measures the temperature, viscosity, or water content of the pavement loaded on a transport vehicle, and the temperature and viscosity of the pavement measured by the measuring unit. Alternatively, the information processing apparatus includes a transmission unit that sequentially transmits information on the amount of moisture to the communication network wirelessly.

  The pavement measuring instrument according to claim 2 further includes an outside air temperature sensor that repeatedly measures an outside air temperature around the transport vehicle in the pavement measuring instrument according to claim 1, wherein the transmitter Is characterized in that information on the outside air temperature measured by the outside air temperature sensor is sequentially transmitted wirelessly to the communication network.

  Moreover, the measuring device for pavement materials according to claim 3 is provided with an acquisition unit that repeatedly acquires information on the position of the transport vehicle on the earth in the measuring device for pavement materials according to claim 1 or 2. The transmitting unit sequentially transmits the information acquired by the acquiring unit wirelessly to the communication network.

  Moreover, the pavement material management apparatus according to claim 4 is a receiving unit that receives information transmitted from the measurement device for pavement material according to any one of claims 1 to 3 via a communication network. A storage unit that stores the information received by the receiving unit in association with information related to the identification of the transport vehicle, and transmits the information received by the reception unit to an information terminal at a site to which the transport vehicle is headed. And a transmission unit.

  Further, the pavement material management apparatus according to claim 5 is the pavement material management apparatus according to claim 4, wherein the information terminal is a transmission destination information terminal based on information related to identification of the transport vehicle. And a transmitter that transmits the information received by the receiver to the information terminal of the transmission destination selected by the selector.

  Moreover, the pavement material management apparatus according to claim 6 is a receiving unit that receives information transmitted from the measurement device for pavement material according to any one of claims 1 to 3 via a communication network. And a determination unit that determines whether the temperature, viscosity, or water content of the pavement is equal to or higher than a predetermined management value based on the information received by the reception unit; and the pavement material by the determination unit When it is determined that the temperature, viscosity, or moisture content of the vehicle is less than the predetermined control value, a transmission unit that transmits a notification of returning to the plant to the information terminal of the transport vehicle is provided.

  The pavement material management apparatus according to claim 7 is the pavement material management apparatus according to claim 6, wherein the transmission unit is configured so that the temperature, viscosity, or moisture content of the pavement material is determined by the determination unit. When it is determined that the value is less than the control value, a notification for changing a set value related to the temperature, viscosity, or moisture content of the pavement is transmitted to the information terminal of the plant.

  Moreover, the management apparatus for pavement materials of Claim 8 receives the said information transmitted via the said communication network from the measuring device for pavement materials as described in any one of Claims 1-3. Based on the traffic information on the road to which the transport vehicle heads for the site, the reception unit obtains the estimated arrival time when the transport vehicle arrives at the site, and based on the information received by the reception unit, the predicted arrival A prediction unit for determining an expected value of the temperature, viscosity, or moisture content of the pavement material at a time, a determination unit for determining whether the predicted value determined by the prediction unit is a predetermined management value or more, and A transmission unit configured to transmit a notification of returning to the plant to the information terminal of the transport vehicle when the determination unit determines that the predicted value is less than the predetermined management value.

  Further, the pavement material management apparatus according to claim 9 is the pavement material management apparatus according to claim 8, wherein the transmission unit is configured such that the predicted value is less than the predetermined management value by the determination unit. When it is determined, a notification for changing a set value relating to the temperature, viscosity, or moisture content of the pavement is transmitted to the information terminal of the plant.

  Moreover, the management system for pavement materials according to claim 10 is the measurement device for pavement materials according to any one of claims 1 to 3, and any one of claims 4 to 9. It is provided with the management apparatus for paving materials as described.

  According to the measuring device for pavement material, the management device for pavement material or the management system for pavement material according to the present invention, the temperature, viscosity or water content of the pavement material being transported can be easily grasped.

It is a figure which shows schematic structure of the asphalt mixture temperature management system (an example of the management system for pavement materials) which concerns on 1st Embodiment. It is a figure which shows schematic structure of the measuring apparatus (an example of the measuring apparatus for pavement materials) which concerns on 1st Embodiment. It is a figure which shows an example of the management information which concerns on 1st Embodiment. It is a figure which shows an example of the management information display which concerns on 1st Embodiment. It is a figure which shows schematic structure of the management server (an example of the management apparatus for pavement materials) which concerns on 2nd Embodiment. It is a figure which shows an example of the management information which concerns on 2nd Embodiment. It is a figure which shows schematic structure of the management server (an example of the management apparatus for pavement materials) which concerns on 3rd Embodiment. It is a graph which shows an example of the accumulation data concerning a 3rd embodiment. It is a graph for demonstrating the setting of the plant shipment temperature based on the winter accumulation data shown in FIG. It is a graph for demonstrating the setting of the plant shipment temperature based on the accumulation | storage data of the summer shown in FIG. It is a flowchart which shows the flow of the temperature management process which concerns on 3rd Embodiment.

<First Embodiment>
A first embodiment will be described with reference to FIGS. In addition, the asphalt mixture temperature management system which is an example of the management system for pavement materials is demonstrated.

(Basic configuration)
As shown in FIG. 1, the asphalt mixture temperature management system 10 according to the first embodiment includes a measuring device (an example of a paving material measuring device) 20, a management server (an example of a paving material management device) 30, A plant information terminal 40 and an on-site information terminal 50 are provided. The measuring device 20, the management server 30, the plant information terminal 40, and the field information terminal 50 are connected to each other via a communication network 60 so that they can communicate with each other. As the communication network 60, for example, a WAN (wide area network) or a LAN (local area network) can be used.

  The measuring device 20 is detachably provided on a transport vehicle (for example, a dump truck or a cooker car) D. The measuring device 20 repeatedly obtains the temperature of the asphalt mixture loaded on the transport vehicle D, the outside air temperature around the transport vehicle D, and the position of the transport vehicle D on the earth (for example, latitude, longitude, altitude, etc.). The information is sequentially transmitted to the management server 30 via the communication network 60 together with the identification information (for example, vehicle number) of the transport vehicle D (details will be described later).

  Such a measuring device 20 functions as a temperature measuring device that measures the temperature of the asphalt mixture and further measures the outside air temperature. In addition, the measuring device 20 functions as a position measuring device that measures the position of the transport vehicle D.

  The management server 30 includes a communication unit (transmission unit and reception unit) 31, a storage unit 32, and a control unit 33. The communication unit 31 receives various information (for example, temperature information about the temperature of the asphalt mixture, temperature information about the outside air temperature, position information about the position of the transport vehicle D, identification information about the transport vehicle D, etc.) transmitted from the measuring device 20. In addition, the various information is transmitted to the plant information terminal 40 and the field information terminal 50 via the communication network 60. The storage unit 32 stores various types of information received by the communication unit 31 in association with the identification information of the transport vehicle D. The control unit 33 controls each unit such as the communication unit 31 and the storage unit 32.

  Such a management server 30 functions as a cloud server, for example. As the storage unit 32, for example, an HDD (Hard Disk Drive) or an SSD (Solid State Drive) can be used, and as the control unit 33, for example, a CPU (Central Processing Unit) can be used. It is.

  The plant information terminal 40 includes a communication unit (transmission unit and reception unit) 41, a display unit 42, and a control unit 43. The communication unit 41 transmits and receives various information via the management server 30 and the communication network 60. The display unit 42 displays the temperature of the asphalt mixture, the outside air temperature, and the position of the transport vehicle D based on various information such as the temperature of the asphalt mixture, the outside air temperature, and the position of the transport vehicle D received by the communication unit 41. For example, the display unit 42 displays the temperature of the asphalt mixture and the outside air temperature, displays a map, and displays a mark indicating the current position of the transport vehicle D on the map. The control unit 43 controls each unit such as the communication unit 41 and the display unit 42.

  As such a plant information terminal 40, for example, a desktop PC (personal computer), a notebook PC, a tablet PC, or the like can be used. As the control unit 43, for example, a CPU (Central Processing Unit) can be used.

  The field information terminal 50 includes a communication unit (transmission unit and reception unit) 51, a display unit 52, and a control unit 53, similar to the plant information terminal 40. The communication unit 51 transmits and receives various information via the management server 30 and the communication network 60. The display unit 52 displays the temperature of the asphalt mixture, the outside air temperature, and the position of the transport vehicle D based on various information such as the temperature of the asphalt mixture, the outside air temperature, and the position of the transport vehicle D received by the communication unit 51. For example, like the display unit 42 of the plant information terminal 40, the display unit 52 displays the temperature of the asphalt mixture and the outside air temperature, displays a map, and displays a mark indicating the current position of the transport vehicle D on the map. . The control unit 53 controls each unit such as the communication unit 51 and the display unit 52.

  As such a field information terminal 50, for example, a notebook PC, a tablet PC, a smart phone, or the like can be used, and a portable information terminal is preferably used. As the control unit 53, for example, a CPU can be used.

(measuring equipment)
Next, the measuring instrument 20 will be described in detail.

  As shown in FIG. 2, the measuring device 20 includes a plurality of temperature sensors (measuring units) 21, an outside air temperature sensor 22, a sensor box 23, and a data logger 24. The measuring device 20 is attached to the transport vehicle D, but can be removed as necessary.

  Each temperature sensor 21 is connected to the sensor box 23 by a cable 21a having heat resistance. These temperature sensors 21 repeatedly measure the temperature of the asphalt mixture, specifically the voltage value that changes according to the temperature of the asphalt mixture, while being inserted into the asphalt mixture loaded on the transport vehicle D. As each temperature sensor 21, for example, a thermocouple type contact sensor can be used, and a non-contact sensor other than the contact sensor can be used. As the cable 21a, for example, a curled cable can be used. In addition, in FIG. 2, illustration of the heat insulation sheet (for example, linen) covered with an asphalt mixture is abbreviate | omitted.

  The outside air temperature sensor 22 is provided on the wall surface of the loading platform of the transport vehicle D, and is connected to the sensor box 23 by a cable 22a. The outside air temperature sensor 22 repeatedly measures the outside air temperature around the transport vehicle D, specifically, the voltage value that changes according to the outside air temperature. As the outside air temperature sensor 22, for example, a thermocouple type contact sensor can be used similarly to the above-described temperature sensor 21, and a non-contact sensor other than the contact sensor can be used. As the cable 22a, for example, a straight cable can be used.

  The sensor box 23 includes a sensor amplifier 23a, a relay transmission unit 23b, and a battery 23c. The sensor box 23 is detachably provided on the wall surface of the loading platform of the transport vehicle D by a fixing member (not shown) such as a magnet. As the sensor box 23, for example, a waterproof box can be used.

  The sensor amplifier 23a converts each voltage value measured by each temperature sensor 21 and the outside air temperature sensor 22 into a temperature value. A voltage value is input to each sensor amplifier 23a from each temperature sensor 21 via a cable 21a, and a voltage value is input from an outside air temperature sensor 22 via a cable 22a. The conversion process for converting the voltage value into the temperature value may be executed by another device such as the management server 30.

  The relay transmission unit 23b transmits the temperature information regarding each temperature value converted by the sensor amplifier 23a to the data logger 24 wirelessly in real time. The transmission timing does not have to be real time, and may be regular (for example, every 5 minutes) or irregular. In addition to wireless transmission, it is possible to use wired transmission. However, in order to realize the omission of the wiring work and the improvement in the degree of freedom in mounting the sensor box 23, the wireless transmission is used. It is preferable.

  The battery 23c serves as a power source for the sensor amplifier 23a and the relay transmission unit 23b. The battery 23c is detachably provided in the sensor box 23 so that the battery can be replaced. The sensor amplifier 23a and the relay transmission unit 23b can be powered from the transport vehicle D. However, in order to omit the wiring work and improve the degree of freedom in mounting the sensor box 23, the built-in battery 23c is used. It is preferable to take power from.

  The data logger 24 includes a GPS (Global Positioning System) receiver 24a and a communication unit (transmission unit and reception unit) 24b. The data logger 24 is provided in the cabin of the transport vehicle D. The data logger 24 is powered from a cigar socket (not shown) in the cabin.

  The GPS receiver 24a specifies the position of the transport vehicle D (for example, latitude, longitude, altitude, etc.) on the earth from the distance between the plurality of satellites and the transport vehicle D, and acquires the position of the transport vehicle D on the earth. Functions as an acquisition unit. GPS is an example of GNSS (Global Navigation Satellite System), and other systems can be used.

  The communication unit 24b uses the asphalt mixture temperature information and the outside air temperature information transmitted from the relay transmission unit 23b, and the position information of the transport vehicle D acquired by the GPS receiver 24a on the identification information of the transport vehicle D (for example, And the vehicle number) to the management server 30 via the communication network 60. In addition to the vehicle number of the transport vehicle D, other information such as the number of the transport vehicle D can be used as the identification information of the transport vehicle D.

  The temperature information of the asphalt mixture, the temperature information of the outside air, the position information of the transport vehicle D, and the identification information of the transport vehicle D transmitted by the communication unit 24b are received by the communication unit 31 of the management server 30. The received asphalt mixture and the temperature information of the outside air and the position information of the transport vehicle D are associated with the identification information of the transport vehicle D received together and stored as management information in the storage unit 32 of the management server 30.

  For example, management information as shown in FIG. 3 is stored in the storage unit 32 of the management server 30. As shown in FIG. 3, the management information includes each information of the position history of the transport vehicle D, the temperature history of the asphalt mixture, and the temperature history of the outside air for each vehicle number which is an example of identification information of the transport vehicle D. Yes. For example, in the management server 30, the identification information of the transport vehicle D, the current position of the transport vehicle D, the current temperature of the asphalt mixture, and the current temperature of the outside air are received in real time by the communication unit 31. The information is stored in the storage unit 32 in association with the measurement time, and information on the position history of the transport vehicle D, the temperature history of the asphalt mixture, and the temperature history of the outside air is generated.

  Here, in the transport vehicle D whose vehicle number is 1, the current position of the transport vehicle D obtained by the GPS receiver 24a is sequentially stored as a1, a2, a3, a4. Further, the temperature of the asphalt mixture measured by the temperature sensor 1 (first temperature sensor 21) is related to the current position of the transport vehicle D, and is 180 ° C, 180 ° C, 178 ° C, 177 ° C, and so on. Are stored sequentially. Similarly, the temperature of the asphalt mixture measured by the temperature sensor 2 (second temperature sensor 21) is also related to the current position of the transport vehicle D and is 180 ° C, 179 ° C, 179 ° C, 178 ° C, ... The temperature of the asphalt mixture that is sequentially stored and measured by the temperature sensor 3 (third temperature sensor) is also related to the current position of the transport vehicle D while being 180 ° C., 179 ° C., 178 ° C., 177 ° C.・ Sequentially saved. Further, the outside air temperature measured by the outside air temperature sensor 22 is associated with the current position of the transport vehicle D, and 18.5 ° C., 17.9 ° C., 18.0 ° C., 17.6 ° C., and so on. Saved sequentially. Such storage processing is the same for other transport vehicles D having vehicle numbers 2 and 3.

  When the current position of the transport vehicle D is a1 due to the association between the current position of the transport vehicle D and the temperature of the asphalt mixture, the temperature of the temperature sensor 1 is 180 ° C., and the temperature of the temperature sensor 2 Is 180 ° C., the temperature of the temperature sensor 3 is 180 ° C., and the temperature of the outside air is 18.5 ° C. When the current position of the transport vehicle D is a2, the temperature of the temperature sensor 1 is 180 ° C, the temperature of the temperature sensor 2 is 179 ° C, the temperature of the temperature sensor 3 is 179 ° C, and the outside air Is 17.9 ° C. When the current position of the transport vehicle D is a3, the temperature of the temperature sensor 1 is 178 ° C., the temperature of the temperature sensor 2 is 179 ° C., the temperature of the temperature sensor 3 is 178 ° C., and the outside air Is 18.0 ° C. Similarly, for each current position of the transport vehicle D, the individual temperatures of the temperature sensors 1, 2, and 3 and the outside air temperature are stored. The individual temperatures of the temperature sensors 1, 2, and 3 may be averaged and the average value stored.

(Temperature control process)
Next, the flow of the temperature management process by the aforementioned asphalt mixture temperature management system 10 will be described. Here, a case where there is one plant and one site will be described. A case where there are a plurality of plants and sites will be described later as a second embodiment.

  In the plant, the manufactured asphalt mixture is loaded on the transport vehicle D. The measuring device 20 measures the temperature of the asphalt mixture, the outside air temperature, and the position of the transport vehicle D by each temperature sensor 21, the outside air temperature sensor 22 and the GPS receiver 24a, and the temperature information of the asphalt mixture and the temperature of the outside air. Various information such as information, position information of the transport vehicle D, and identification information of the transport vehicle D is transmitted to the management server 30 via the communication network 60 by the transmission unit 24b in real time.

  The management server 30 receives various information transmitted from the measuring device 20 via the communication network 60 by the communication unit 31, and based on the identification information of the transport vehicle D, the temperature information of the asphalt mixture, the outside air for each transport vehicle D The temperature information and the position information of the transport vehicle D are sequentially stored in the storage unit 32. Furthermore, the management server 30 sends various information (temperature information of asphalt mixture, temperature information of outside air, position of the transport vehicle D) to the predetermined plant information terminal 40 and the predetermined site information terminal 50 via the communication network 60. Information, identification information of the transport vehicle D).

  The plant information terminal 40 receives various information (temperature information of asphalt mixture, temperature information of outside air, position information of the transport vehicle D, identification information of the transport vehicle D) transmitted from the management server 30 by the communication unit 41, and receives the information. The displayed various information is displayed on the display unit 42. At this time, the control unit 43 of the plant information terminal 40 performs control to display various information on the display unit 42 based on a predetermined program for displaying information.

  The field information terminal 50 also has various information transmitted from the management server 30 (temperature information of asphalt mixture, temperature information of outside air, position information of the transport vehicle D, identification information of the transport vehicle D) as with the plant information terminal 40. Is received by the communication unit 51, and various received information is displayed on the display unit 52. At this time, the control unit 53 of the site information terminal 50 performs control to display various information on the display unit 52 based on a predetermined program for displaying information.

  Here, as shown in FIG. 4, various information (for example, temperature information of asphalt mixture, temperature information of outside air, position information of the transport vehicle D, identification information of the transport vehicle D, etc.) are displayed on the display unit of the plant information terminal 40. 42 and the display unit 52 of the site information terminal 50. For example, in FIG. 4, the current position of the transport vehicle D and the estimated arrival time are displayed for each vehicle number, and the temperature of the asphalt mixture and the outside air temperature are also displayed for each vehicle number. In addition, a planned travel route is displayed, and a mark indicating the current vehicle position (for example, a mark indicating a vehicle number) is displayed on the planned travel route.

  Thereby, the plant worker can grasp the temperature of the asphalt mixture, the outside air temperature, and the position of the transport vehicle D by looking at various information displayed on the display unit 42 of the plant information terminal 40, and further, the arrival The scheduled time and the planned traveling route can be grasped. Similarly, an on-site worker can grasp the temperature of the asphalt mixture, the outside air temperature, and the position of the transport vehicle D by looking at various types of information displayed on the display unit 52 of the on-site information terminal 50. The scheduled time and the planned traveling route can be grasped.

  Note that the position of the plant or the site is set by the plant information terminal 40. For example, the terminal user of the plant operates the input unit (for example, a keyboard or a mouse) of the plant information terminal 40 based on the arrangement plan of the transport vehicle D, and sets the position of the plant or the site on the map. When the plant and the site are set on the map, the planned travel route and the estimated arrival time are automatically set and displayed.

  According to such a temperature control process, the temperature of the asphalt mixture shipped from the plant (asphalt mixture factory) and the outside air temperature around the transport vehicle D are at least from the time of shipment until the arrival at the site (transportation) Middle), and is measured in real time by the temperature sensor 21 and the outside air temperature sensor 22. At the same time, the position of the transport vehicle D is measured by the GPS receiver 24a. And each temperature information and the positional information on the transport vehicle D are preserve | saved in the data area on the management server 30, for example, WEB, via the communication network 60 (for example, mobile communication systems, such as 3G and LTE), in real time.

  After that, the stored data (for example, temperature information of asphalt mixture, temperature information of outside air, position information of transport vehicle D, identification information of transport vehicle D, etc.) is the plant and construction site (material receiving location) where the asphalt mixture was shipped. ) In addition, in other management departments (headquarters, branch offices, sales offices, etc.), it can be accessed by an information terminal such as a personal computer or a tablet PC, and constantly monitors the temperature of the asphalt mixture and the position of the transport vehicle D in real time. be able to. In this way, by centrally managing the data by the management server 30, the data can be easily displayed and understood by various information terminals in the plant, the construction site, and other management departments.

In addition, as a method of utilizing the monitored data, in the plant, “1. Confirmation of the temperature of the mixture until arrival at the site, 2. Grasping the tendency of temperature decrease, 3. Notification of the type or number of heat insulation sheets, 4. Adjustment of shipping temperature. 5. Reduction of fuel consumption, CO ₂ reduction, 6. Preparation preparation and adjustment (efficiency) of mixture according to expected time of dump return, 7. Operation management of dump, 8. Quality assurance of asphalt mixture by temperature data management " Etc.

  In addition, on site, “1. Confirming the current position and expected arrival time of the dump, 2. Confirming the temperature of the asphalt mixture at the time of arrival, 3. Reducing labor and improving safety by displaying the arrival temperature on an electronic blackboard, and 4. "Ensuring pavement quality in continuous work by adjusting speed, 5. Ensuring compaction density by adjusting strength of asphalt finisher tamper and vibrator", etc.

  In addition, “1. It is possible to grasp dumping operation and asphalt mixture temperature in the jurisdiction area and nationwide, so that the review of the shipping system and the management of strategic plant management, etc. “Caution points on driving routes (schools, hospitals, driving prohibited points, etc.) and driving route check / safe driving measures”.

(Display example)
Here, a display example when various information is displayed in addition to the above-described temperature information in the plant information terminal 40 and the site information terminal 50 will be described in detail. The plant information terminal 40 and the site information terminal 50 receive various information from the management server 30 via the communication network 60. For this reason, the management server 30 has memorize | stored the various information required for the following display examples, and transmits to the plant information terminal 40 or the field information terminal 50 as needed.

  Examples of display by the plant information terminal 40 include “1. Display of planned travel route, 2. Display of vehicle position information, 3. Other display”. 1. In the display of the planned travel route, the planned travel route is displayed as a line on the map. 2. In the display of the vehicle position information, the current position of the vehicle heading to the site or the plant is displayed on the travel route. At this time, the on-site or plant arrival time may be displayed. 3. In other displays, for example, shipping date / time, shipping plant name, person in charge, contact information, construction name (sales destination), asphalt mixture name, loading mass, vehicle number, driver name, contact information, and the like are displayed.

  By performing the above-mentioned “1. Display of the planned travel route”, it is possible to notify the driver of the travel route and to confirm the travel route (such as a prohibited passage) before the departure. In addition, the driver can be informed of dangers and points of concern (kindergartens, schools, nursing homes, hospitals, construction points, etc.). In addition to displaying the planned travel route, the travel speed of the vehicle can also be displayed.

  Examples of display by the site information terminal 50 include “1. Display of planned travel route, 2. Display of vehicle position information, 3. Other display”, as with the plant information terminal 40. 1. In the display of the planned travel route, the planned travel route is displayed as a line on the map. 2. In the display of the vehicle position information, the current position of the vehicle heading to the site is displayed on the travel route. At this time, the estimated arrival time at the site may be displayed. 3. In other displays, for example, a construction name, an asphalt mixture name, a work type, an asphalt mixture temperature, a company name, and a remark are displayed.

  As described above, according to the first embodiment, the temperature information on the temperature of the asphalt mixture loaded on the transport vehicle D is repeatedly measured by the temperature sensor 21, and the temperature information on the temperature of the asphalt mixture measured by the temperature sensor 21. Are sequentially transmitted wirelessly by the communication unit 24b. Thereby, since the temperature information regarding the temperature of the asphalt mixture being transported is obtained, the temperature of the asphalt mixture being transported can be easily grasped. For example, it is not necessary for the driver to park the transport vehicle D during transport and to insert a thermometer into the asphalt mixture loaded on the transport vehicle D to measure the temperature of the asphalt mixture. Furthermore, it is possible to suppress an increase in the time until the transport vehicle D arrives at the site due to temperature measurement by manual work during transport.

  Moreover, quality assurance can be realized by grasping the temperature of the asphalt mixture and the current position of the transport vehicle D. For example, a temperature management method can be selected by a follow-up survey based on historical information such as the temperature of the asphalt mixture and the outside air temperature, and the temperature drop of the asphalt mixture during transportation can be suppressed. In addition, by grasping the current position of the transport vehicle D, it is possible to perform continuous work (continuous construction) on the site, so that the flatness of the paved road surface can be ensured.

  Further, by grasping the current position of the transport vehicle D and the temperature of the asphalt mixture, safety can be enhanced. For example, it is possible to perform route notifications and alerts for dangerous places, so that accidents during transportation of asphalt mixtures can be suppressed. Moreover, since it is possible to grasp | ascertain the temperature of an asphalt mixture continuously, the temperature measurement at the time of on-site arrival can be simplified and the temperature measurement operation | work on the loading platform of the transport vehicle D can be abbreviate | omitted.

  Further, by grasping the current position of the transport vehicle D, it is possible to realize work efficiency. For example, since the operation status of the transport vehicle D can be grasped, the arrangement plan of the transport vehicle D becomes easy. In addition, the current position of the transport vehicle D can be grasped, and on-site standby of the transport vehicle D can be suppressed. Furthermore, it is possible to grasp the arrival of the transport vehicle D at the site, and confirmation of the delivery at the site can be realized. Further, since it is possible to adjust the speed of the finisher, it is easy to plan finisher refueling and machine adjustment time.

  Further, by knowing the current position and estimated arrival time of the transport vehicle D, the traveling speed can be adjusted automatically or manually so as not to stop the asphalt finisher, and good flatness of the paved road surface can be ensured. In addition, it is possible to perform efficient work at the site by utilizing the estimated arrival time in the management of the adjustment time of the machine and the break time. Further, in the plant, efficient operation management is enabled so as to reduce the waiting time at the site of the transport vehicle D.

  In addition, by knowing the changing tendency of the temperature of the asphalt mixture, it is possible to adjust the manufacturing temperature of the mixture so that it becomes the optimum temperature when it arrives at the site, and to adjust the curing method using a heat insulating sheet, etc. . In addition, at the site, the strength of the tamper and vibrator of the compaction mechanism of the asphalt finisher can be adjusted automatically or manually to match the optimum output for each temperature. Furthermore, in the temperature management at the time of arrival of the transport vehicle, it is not necessary to go up on the loading platform of the transport vehicle D, so that safety can be improved.

  Here, when adjusting the traveling speed automatically without stopping the asphalt finisher or automatically adjusting the strength of the tamper and vibrator of the asphalt finisher, the asphalt finisher is provided with a receiving unit and a control unit, The control unit controls each part (control target part) of the asphalt finisher according to various information received by the receiving part (for example, asphalt mixture temperature information, outside air temperature information, position information of the transport vehicle D, etc.) Adjust the finisher's running speed and the strength of the tamper and vibrator.

  In addition, efficient management can be performed by acquiring various WEB information (information from the Internet or the like) on the planned travel route of the transport vehicle D. For example, by reflecting the traffic information on the planned travel route, correct the estimated arrival time, notify the change of the planned travel route, or reflect the short-term weather forecast (outside temperature, weather, wind), etc. Thus, notification of temperature adjustment in anticipation of changes in the mixture temperature, notification of covering the waterproof sheet and the heat insulating sheet, and predictive treatment can be performed.

  Further, when performing temperature measurement and photography of the asphalt mixture upon arrival at the site as quality control, the transport vehicle D is photographed by a camera mounted on a tablet terminal or the like instead of the conventional management method. Thereby, the electronic blackboard in which the temperature of the asphalt mixture taken in from the data on the WEB server is displayed on the tablet terminal together with the background photo (photo of the transport vehicle D) in the image of the photo.

  In addition, by recording the position information and speed of asphalt finisher measured by a measuring device such as GPS and speedometer on a WEB server and incorporating it into this system, the plant with the information terminal and other management departments (head office, (Branch offices, sales offices, etc.) can share the progress of the site in real time, the plant can make assumptions about the shipment volume and the timing of shipments, and the management department can quickly detect and deal with troubles. be able to.

  Moreover, it is possible to estimate the presence or absence of an asphalt mixture, that is, a load using each temperature sensor 21, and the presence or absence of the load can be confirmed according to the temperature measured by each temperature sensor 21. For example, in the management server 30, the control unit 33 determines whether the temperature measured by each temperature sensor 21 is equal to or higher than a predetermined temperature (for example, 100 ° C.). If it is determined that there is an object and it is determined that the temperature is lower than the predetermined temperature, it is determined that there is no load. At this time, the control unit 33 functions as a determination unit.

<Second Embodiment>
A second embodiment will be described with reference to FIGS. In the second embodiment, a difference (management server and temperature management) from the first embodiment, particularly a transmission destination selection step when there are a plurality of plants and a plurality of sites, will be described. Is omitted.

(Basic configuration)
As shown in FIG. 5, the management server 30 according to the second embodiment includes a communication unit 31, a storage unit 32, and a control unit 33, as in the first embodiment, and relates to the second embodiment. The control unit 33 includes a selection unit 33a. The selection unit 33a selects the destination site information terminal 50 from the plurality of site information terminals 50 based on the management information stored in the storage unit 32. The selection unit 33a is configured by one or both of software and hardware.

  Since there are a plurality of plants and a plurality of sites, it is necessary for the management server 30 to manage which plant the asphalt mixture is loaded and to which site the transport vehicle D loads. Therefore, in the storage unit 32, as management information, in addition to the position history of the transport vehicle D, the temperature history of the asphalt mixture, and the temperature history of the outside air, for each identification information (for example, vehicle number) of the transport vehicle D, Plant identification information (for example, plant name) and site identification information (for example, site name) are stored.

  For example, management information as illustrated in FIG. 6 is stored in the storage unit 32. As shown in FIG. 6, the management information includes a plant name that is an example of plant identification information and a site name that is an example of site identification information, for each vehicle number that is an example of identification information of the transport vehicle D, Each information includes a position history of the transport vehicle D, a temperature history of the asphalt mixture, and a temperature history of the outside air.

  The plant identification information and the site identification information are set by the plant information terminal 40. For example, a plant terminal user operates an input unit (for example, a keyboard or a mouse) of the plant information terminal 40 based on the arrangement plan of the transport vehicle D, and identifies plant identification information and site identification for each transport vehicle D. Set or change information.

  In the example of FIG. 6, the transport vehicle D whose vehicle number is 1 loads the asphalt mixture at the plant A and delivers it to the site A1, and the transport vehicle D whose vehicle number is 2 is the asphalt mixture at the plant A. The vehicle D having a vehicle number of 3 is loaded with asphalt mixture at the plant B and delivered to the site B1. Thus, the plant name and the site name are set for each vehicle number of the transport vehicle D.

(Destination selection process)
The management server 30 determines a transmission destination from the vehicle number of the transport vehicle D received by the communication unit 31 based on the management information described above. For example, when the vehicle number of the transport vehicle D is 1, various information (for example, temperature information of asphalt mixture, temperature information of outside air, position information of the transport vehicle D, transport vehicle D, the site information terminal 50 of the site A1) Identification information). Similarly, when the vehicle number of the transport vehicle D is 2, various information is transmitted to the site information terminal 50 of the site A2, and when the vehicle number of the transport vehicle D is 3, the site information of the site B1. Various information is transmitted to the terminal 50.

  As described above, the management server 30 selects the transmission destination from the plurality of field information terminals 50 based on the management information by the selection unit 33a according to the vehicle number of the transport vehicle D to which the measurement device 20 of the transmission source is attached, Various types of information are transmitted to the selected destination site information terminal 50 by the communication unit 31. Thereby, since various information transmitted from the measuring device 20 of the transmission source is appropriately transmitted to the site information terminal 50 of the site to which the transport vehicle D to which the transmission device 20 of the transmission source is attached travels. The worker can grasp various information related to the transport vehicle D heading to his / her site by looking at the various information displayed on the display unit 52 of the site information terminal 50.

  As described above, according to the second embodiment, even when there are a plurality of plants and a plurality of sites, the same effect as that of the first embodiment can be obtained by providing the selection unit 33a. .

<Third Embodiment>
A third embodiment will be described with reference to FIGS. In addition, in 3rd Embodiment, the notification process based on the difference (management server and temperature management) from 1st Embodiment, especially the temperature of the asphalt mixture in conveyance is demonstrated, and other description is abbreviate | omitted.

(Basic configuration)
As illustrated in FIG. 7, the management server 30 according to the third embodiment includes a communication unit 31, a storage unit 32, and a control unit 33, as in the first embodiment, and relates to the third embodiment. The control unit 33 includes a prediction unit 33b and a determination unit 33c. The prediction unit 33b and the determination unit 33c are configured by one or both of software and hardware.

  The prediction unit 33b obtains the estimated arrival time (scheduled arrival time) when the transport vehicle D arrives at the site based on the traffic jam information on the road toward the site. The traffic jam information is acquired via a communication network 60 from a traffic jam information provider such as the Japan Road Traffic Information Center. Further, the prediction unit 33b, based on the temperature information of the asphalt mixture and the weather forecast information (for example, weather and temperature) received by the communication unit 31, the expected temperature (expected value) of the asphalt mixture at the expected arrival time described above. Ask for. The weather forecast information is acquired via a communication network 60 from a provision device of a weather forecast information provider such as the Japan Meteorological Agency.

  Here, for example, as shown in FIG. 8, accumulated data in which the temperature of the asphalt mixture (mixing material temperature) changes according to the transportation time is stored in the storage unit 32 for each season (spring, summer, autumn and winter). ing. The first accumulated data A1 (spring / autumn) is data accumulated in the spring and autumn, and the mixture temperature in the first accumulated data A1 is gradually lowered as the transport time increases. The second accumulated data A2 (summer) is data accumulated in summer, and the mixture temperature in the second accumulated data A2 gradually rises as the transport time increases. The third accumulated data A3 (winter) is data accumulated in winter, and the mixture temperature in the third accumulated data A3 is gradually larger than the first accumulated data A1 as the transportation time increases. It is falling.

  Such accumulated data, as well as weather forecast information (for example, season, weather, temperature, etc.) are used by the prediction unit 33b to grasp the degree of temperature change of the asphalt mixture over time, and the asphalt mixture at the expected arrival time. Temperature is expected. For example, a temperature change prediction pattern is generated from the accumulated data based on weather forecast information and the like, and the temperature of the asphalt mixture at the expected arrival time is predicted based on the temperature change prediction pattern. In this way, the expected temperature of the asphalt mixture is obtained. At this time, the outside air temperature measured by the outside air temperature sensor 22 can be used.

  Based on the temperature information of the asphalt mixture received by the communication unit 31, the determination unit 33c determines whether or not the current temperature of the asphalt mixture is equal to or higher than a predetermined management value (threshold value). Further, the determination unit 33c also determines whether or not the expected temperature of the asphalt mixture obtained by the prediction unit 33b is equal to or higher than a predetermined management value. The predetermined management value is set in advance in the storage unit 32 of the management server 30 when the input unit of the plant information terminal 40 is operated by a terminal user of the plant.

  When the determination unit 33c determines that the temperature of the asphalt mixture (measured temperature) or the predicted temperature is less than the control value, the transmission unit 31 sends information to the information terminal of the transport vehicle D (for example, a car navigation device or a smartphone). Notification of returning to the shipping plant (the plant on which the transport vehicle D is loaded with the asphalt mixture), and further, the plant shipping set value (for example, the plant shipping temperature setting value and the like) for the asphalt mixture to the plant information terminal 40 of the shipping plant. A notification for changing the setting value of the factory shipment chemical addition amount, etc.) is transmitted. This change notification is displayed on the display unit 42 of the plant information terminal 40, and the terminal user of the plant visually recognizes the change notification, operates the input unit of the plant information terminal 40 to change and reset the plant shipment set value. . The notification includes a notification that does not include an instruction (command) and a notification that includes an instruction.

  The plant shipment setting value is set in advance in the storage unit 32 of the management server 30 when the input unit of the plant information terminal 40 is operated by a terminal user of the plant. For example, when the current season is winter and the transportation time is within one hour, the terminal user of the plant, as shown in FIG. 9, displays the third accumulated data A3 displayed on the display unit 42 of the plant information terminal 40. , And even if the plant shipping temperature set value is lowered by 2 ° C., it is understood that the predicted temperature is equal to or higher than the predetermined control value B1 (see graph A3a in FIG. 9), and the input unit of the plant information terminal 40 is operated. Then, the plant shipment temperature set value can be lowered by 2 ° C. and set. Further, when the current season is winter and the transportation time is 2 hours, it is understood that the plant shipping temperature set value needs to be increased by 10 ° C. or more (see graph A3b in FIG. 9), and the plant information terminal 40 Can be set by raising the plant shipping temperature set value by 10 ° C.

  Further, for example, when the current season is summer and the transportation time is within one hour, the terminal user of the plant performs the second accumulation displayed on the display unit 42 of the plant information terminal 40 as shown in FIG. Even if the data A2 is visually recognized and the plant shipping temperature set value is lowered by 10 ° C., it is understood that the predicted temperature is equal to or higher than the predetermined control value B1 (see graph A2a in FIG. 10), and the input unit of the plant information terminal 40 The plant shipping temperature set value can be lowered by 10 ° C. and set. Further, when the current season is summer and the transportation time is 2 hours, it is understood that even if the plant shipping temperature set value is lowered by 5 ° C., the predicted temperature becomes equal to or higher than the predetermined management value B1 (in FIG. 10). The graph A2b) can be set by lowering the plant shipping temperature set value by 5 ° C. by operating the input unit of the plant information terminal 40.

  Since the plant shipping temperature set value is appropriately set in this way, it is possible to suppress the transport of the asphalt mixture whose temperature is lower than the predetermined control value, that is, the asphalt mixture that cannot be used for construction, to the site by the transport vehicle D. it can. Also, the plant shipment chemical addition amount set value can be set as appropriate as described above, and either one or both of the temperature setting and the addition amount setting can be selectively performed as necessary. In addition, the temperature of an asphalt mixture changes with various conditions, such as weather conditions during conveyance, weather conditions, such as temperature, and also the presence or absence of a heat retention sheet. For this reason, the temperature of the asphalt mixture being transported may not change in the same way as the accumulated data, so the temperature of the asphalt mixture being transported may not be changed even if the plant shipment temperature setting value is set appropriately as described above. It is important to know and may be reset as needed.

(Temperature control process)
Next, the flow of the temperature management process by the asphalt mixture temperature management system 10 will be described. In the plant, the asphalt mixture is loaded on the loading platform of the transport vehicle D, and the measuring device 20 is attached to the transport vehicle D. Thereafter, the heat insulation sheet is placed on the asphalt mixture on the loading platform of the transport vehicle D, and measurement by the measuring device 20 is started.

  As shown in FIG. 11, in step S1, the measuring device 20 measures the temperature of the asphalt mixture, the outside air temperature, and the position of the transport vehicle D by each temperature sensor 21, the outside air temperature sensor 22 and the GPS receiver 24a, Various information such as the temperature information of the asphalt mixture, the temperature information of the outside air, the position information of the transport vehicle D, and the identification information of the transport vehicle D is transmitted to the management server 30 via the communication network 60 in real time ( For details, refer to the first embodiment).

  In step S <b> 2, the management server 30 receives various information transmitted from the measuring device 20 via the communication network 60 by the communication unit 31, and determines the asphalt mixture for each transport vehicle D based on the identification information of the transport vehicle D. The temperature information, the temperature information of the outside air, and the position information of the transport vehicle D are sequentially stored in the storage unit 32, and the information is transmitted to the site information terminal 50. The site information terminal 50 receives information from the management server 30 and displays it on the display unit 52 (for details, refer to the first embodiment).

  In step S3, based on the temperature information of the asphalt mixture, the management server 30 determines whether the temperature of the asphalt mixture (mixing material temperature) is equal to or higher than a predetermined management value (for example, 110 ° C.) by the determination unit 33c. . The predetermined management value is set in advance in the storage unit 32 of the management server 30 when the input unit of the plant information terminal 40 is operated by a terminal user of the plant.

  If it is determined in step S3 described above that the temperature of the asphalt mixture (mixing material temperature) is not equal to or higher than the predetermined management value, that is, lower than the predetermined management value (NO in step S3), in step S4, the management server 30 Transmits a notification of returning to the plant to the information terminal of the transport vehicle D by the communication unit 31, and further, in step S5, notifies the information terminal 40 of the plant of changing the plant shipment set value by the communication unit 31. Send.

  On the other hand, when it is determined in step S3 described above that the temperature of the asphalt mixture (mixing material temperature) is equal to or higher than a predetermined management value (YES in step S3), in step S6, the management server 30 uses the prediction unit 33b. An expected arrival time at which the transport vehicle D arrives at the site is calculated. Further, in step S7, an expected temperature of the asphalt mixture at the calculated expected arrival time (expected mixture temperature) is calculated.

  In step S8, the management server 30 determines whether or not the predicted temperature (expected mixture temperature) of the asphalt mixture is equal to or higher than a predetermined management value (for example, 110 ° C.) by the determination unit 33c. The predetermined management value is set in advance in the storage unit 32 of the management server 30 when the input unit of the plant information terminal 40 is operated by a terminal user of the plant.

  If it is determined in step S8 described above that the expected temperature of the asphalt mixture (expected mixture temperature) is not equal to or higher than the predetermined control value (ie, lower than the predetermined control value) (NO in step S8), In S4, the management server 30 transmits a notification of returning to the plant to the information terminal of the transport vehicle D by the communication unit 31, and further, in step S5, the communication unit 31 sets the plant shipment setting to the plant information terminal 40. Send notification to change value.

  On the other hand, if it is determined in step S8 described above that the expected temperature of the asphalt mixture is equal to or higher than the predetermined management value (YES in step S8), in step S9, the management server 30 causes the determination unit 33c to determine that the transport vehicle D is Determine if you have arrived at the site.

  If it is determined in step S9 described above that the transport vehicle D has not arrived at the site (NO in step S9), the process returns to step S1, and the processes in steps S1 to S9 are repeated.

  On the other hand, when it is determined in step S9 that the transport vehicle D has arrived at the site (YES in step S9), in step S10, the site information terminal 50 determines the temperature of the asphalt mixture during construction by the site worker. In response to the input, the input temperature of the asphalt mixture at the time of construction is transmitted to the management server 30. In addition, the temperature of the asphalt mixture at the time of construction is measured by an on-site worker using a temperature measuring device, and is input to the on-site information terminal 50.

  In step S11, the management server 30 receives the temperature of the asphalt mixture at the time of construction transmitted from the site information terminal 50 by the communication unit 31, and associates the temperature at the time of construction (construction temperature) with the identification information of the transport vehicle D. And stored and managed by the storage unit 32.

  According to such a temperature management process, when the temperature of the asphalt mixture becomes lower than a predetermined management value, a notification of returning to the plant is transmitted to the information terminal of the transport vehicle D. In response to this, the information terminal of the transport vehicle D displays, for example, a notification of returning to the plant or outputs it by sound such as voice or beep to notify the driver of the transport vehicle D. Thereby, the driver of the transport vehicle D grasps that it is necessary to return to the plant, drives the transport vehicle D, and returns to the plant. For this reason, since it is suppressed that the asphalt mixture whose temperature is less than a predetermined control value, that is, the asphalt mixture that cannot be used for construction, is transported to the site by the transport vehicle D, wasteful transportation work can be suppressed. Furthermore, even if the expected temperature of the asphalt mixture becomes less than the predetermined control value, since a notification of returning to the plant is transmitted to the information terminal of the transport vehicle D, it is possible to reliably suppress wasteful transport work.

  In addition, when the temperature of the asphalt mixture or the predicted temperature becomes less than a predetermined control value, a notification for changing the plant shipment set value is transmitted to the plant information terminal 40. In response to this, the information terminal 40 of the plant displays a notification for changing the plant shipment setting value on the display unit 42 or outputs the notification by a sound such as a voice or a beep to notify the plant operator. Thereby, the plant worker grasps that it is necessary to change the plant shipment setting value, and changes the plant shipment setting value by referring to the accumulated data displayed by the display unit 42 (resetting). In this way, since the plant shipment set value is changed to an appropriate value, it is possible to suppress the temperature of the asphalt mixture or the predicted temperature from being lower than the predetermined control value. Thereby, since it becomes possible to suppress carrying the asphalt mixture which cannot be used for construction to the spot by the conveyance vehicle D, a useless conveyance work can be suppressed.

As described above, according to the third embodiment, the same effect as that of the first embodiment can be obtained. Further, as described above, when the temperature of the asphalt mixture and the predicted temperature are less than the predetermined control value, a notification of returning to the plant is transmitted to the information terminal of the transport vehicle D, and the information terminal 40 of the plant is also transmitted. A notification is sent to change the plant shipment settings. Thereby, since it is suppressed that the asphalt mixture which cannot be used for construction is carried to the spot by the conveyance vehicle D, useless conveyance work can be suppressed and conveyance efficiency can be improved. Furthermore, fuel consumption and CO ₂ reduction for the transport vehicle D can be realized.

<Other embodiments>
In the above-described embodiment, the temperature information and the position information are transmitted to the plant information terminal 40 and the site information terminal 50 via the communication network 60 and the management server 30, but the present invention is not limited to this. For example, the plant information terminal 40 Alternatively, the temperature information and the position information may be transmitted directly to the field information terminal 50 or via only the communication network 60. At this time, temperature information and position information can be stored and managed in the plant information terminal 40 and the site information terminal 50. In this case, the plant information terminal 40 and the site information terminal 50 that store temperature information and position information function as a management server (an example of a pavement management device) 30.

  In the above-described embodiment, the sensor box 23 and the data logger 24 are separated. However, the present invention is not limited to this. For example, the sensor amplifier 23a of the sensor box 23 or the like is incorporated in the data logger 24, and the sensor box. 23 and the data logger 24 may be integrated.

  In the above-described embodiment, a notification for changing the plant shipment setting value is transmitted to the information terminal 40 of the shipping plant. However, the notification is not limited to this. For example, the change amount ( For example, change information such as + 5 ° C. or a changeable range (for example, + 5 ° C. to + 10 ° C.) may be transmitted. In addition, when transmitting a change notification, the expected temperature of the asphalt mixture is less than a predetermined control value. Therefore, the management server 30 obtains a difference between the predicted temperature and the predetermined management value by the prediction unit 33b, and determines a change amount to increase the plant shipment temperature set value at least by the difference. And the management server 30 transmits the change information regarding the change amount to the plant information terminal 40 through the communication unit 31 together with the change notification. The plant information terminal 40 automatically changes the plant shipment temperature set value based on the change information, and informs the terminal user of the plant that the change has been made, if necessary. Moreover, when the plant information terminal 40 receives the change information regarding the changeable range, the change information is displayed to notify the terminal user of the plant of the changeable range.

  In the above-described embodiment, an asphalt mixture is employed as the pavement material, and the temperature is measured and managed by a contact type or non-contact type sensor. However, the present invention is not limited to this. As a roadbed material (for example, crushed stone), the moisture content may be measured and measured with a contact or non-contact sensor, or a goose asphalt mixture is used as a paving material, and its viscosity You may make it measure and manage. The goose asphalt mixture is a material with high fluidity and is conveyed while being heated and stirred by a cooker car. In order to determine the viscosity of this goose asphalt mixture, for example, by measuring the torque of a stirrer of a cooker car, the resistance value that the stirrer receives from the goose asphalt mixture during stirring is determined, and based on the resistance value It is possible to determine the viscosity of the goose asphalt mixture.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, some components may be deleted from all the components shown in the above-described embodiment. Furthermore, you may combine the component covering different embodiment suitably.

DESCRIPTION OF SYMBOLS 10 Asphalt mixture temperature management system 20 Measuring apparatus 21 Temperature sensor 21a Cable 22 Outside air temperature sensor 22a Cable 23 Sensor box 23a Sensor amplifier 23b Relay transmission part 23c Battery 24 Data logger 24a GPS receiver 24b Communication part 30 Management server 31 Communication part 32 Memory | storage Unit 33 Control unit 33a Selection unit 33b Prediction unit 33c Judgment unit 40 Plant information terminal 41 Communication unit 42 Display unit 43 Control unit 50 Site information terminal 51 Communication unit 52 Display unit 53 Control unit 60 Communication network D Carrier

Claims (10)

A measuring unit for repeatedly measuring the temperature, viscosity or moisture content of the pavement material loaded on the transport vehicle;
A transmitter that sequentially transmits information on the temperature, viscosity, or moisture content of the pavement measured by the measuring unit wirelessly to a communication network;
A pavement measuring instrument characterized by comprising: An outside temperature sensor that repeatedly measures the outside temperature around the transport vehicle;
The said transmission part transmits the information regarding the said outside temperature measured by the said outside temperature sensor sequentially to the said communication network by radio | wireless, The measuring apparatus for pavement materials of Claim 1 characterized by the above-mentioned. An acquisition unit that repeatedly acquires information on the position of the transport vehicle on the earth;
The said transmission part transmits the said information acquired by the said acquisition part sequentially to the said communication network by radio | wireless, The measuring apparatus for pavement materials of Claim 1 or Claim 2 characterized by the above-mentioned. A receiving unit that receives information transmitted from the measuring device for pavement according to any one of claims 1 to 3 via a communication network;
A storage unit for storing the information received by the reception unit in association with information relating to identification of the transport vehicle;
A transmission unit that transmits the information received by the reception unit to an information terminal on the site of the transport vehicle;
A pavement material management device comprising: A selection unit that selects a destination information terminal from the information terminal for each site based on information related to identification of the transport vehicle;
5. The pavement material management apparatus according to claim 4, wherein the transmission unit transmits the information received by the reception unit to the transmission destination information terminal selected by the selection unit. . A receiving unit that receives information transmitted from the measuring device for pavement according to any one of claims 1 to 3 via a communication network;
Based on the information received by the reception unit, a determination unit that determines whether the temperature, viscosity, or water content of the pavement is equal to or higher than a predetermined management value;
When the judgment unit determines that the temperature, viscosity, or moisture content of the pavement is less than the predetermined control value, a transmission unit that transmits a notification of returning to the plant to the information terminal of the transport vehicle;
A pavement material management device comprising:   When the determination unit determines that the temperature, viscosity, or moisture content of the pavement material is less than the predetermined control value, the transmission unit determines the temperature, viscosity, or the pavement material for the information terminal of the plant. The pavement material management apparatus according to claim 6, wherein a notification for changing a set value related to a moisture amount is transmitted. A receiving unit that receives the information transmitted from the measuring device for pavement according to any one of claims 1 to 3 via the communication network;
Based on the traffic congestion information on the road where the transport vehicle heads to the site, the estimated arrival time when the transport vehicle arrives at the site is obtained, and based on the information received by the receiving unit, the pavement at the estimated arrival time An expected part for obtaining an expected value of the temperature, viscosity or moisture content of the material;
A determination unit that determines whether the predicted value obtained by the prediction unit is equal to or greater than a predetermined management value;
When the determination unit determines that the predicted value is less than the predetermined management value, a transmission unit that transmits a notification of returning to the plant to the information terminal of the transport vehicle;
A pavement material management device comprising:   When the determination unit determines that the predicted value is less than the predetermined management value, the transmission unit changes a setting value related to the temperature, viscosity, or moisture content of the pavement material with respect to the information terminal of the plant. The pavement material management apparatus according to claim 8, wherein a notification to be transmitted is transmitted. The measuring device for pavement according to any one of claims 1 to 3,
The management device for paving materials according to any one of claims 4 to 9,
A pavement material management system characterized by comprising:

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