JP6905345B2 - Management device for paving materials - Google Patents

Description

The present invention also relates to the management equipment for the shop Paneling.

Asphalt is a material that has good temperature sensitivity and whose viscosity changes significantly with changes in temperature, and asphalt tends to increase in viscosity as the temperature decreases. This asphalt is used as a binder between the materials that make up the asphalt mixture (a type of pavement material), and is mixed at high temperature with crushed stone and sand by a facility called a plant (asphalt mixture factory). The asphalt mixture is produced in.

The produced asphalt mixture is usually loaded on a carrier and transported to a site (construction site) covered with a heat insulating sheet (for example, linen cloth) so that the temperature of the asphalt mixture does not drop. However, when the outside air temperature is low, such as in winter, the temperature of the asphalt mixture drops by the time it arrives at the site, and the temperature drop of this asphalt mixture causes extremely poor workability (deterioration of workability), compaction degree, etc. That is, the density of the pavement may be insufficient (insufficient density).

The above-mentioned deterioration in workability may impose a physical burden on the worker who handles the asphalt mixture with a shovel, a rake, or the like, or may hinder material bias or stable construction even in machine construction. In addition, the density of pavement is one of the important items in the quality control items of pavement, and if the above-mentioned insufficient density occurs, rutting may occur at an early stage, the pavement may peel off or scatter, or the pavement may be scattered. Due to poor watertightness, water may infiltrate under the roadbed, resulting in damage or destruction, which may cause major problems after operation.

In addition, in asphalt pavement, if the asphalt finisher, which is a machine for leveling the asphalt mixture on site, is stopped in the middle, unevenness may occur on the pavement surface of that part and the flatness may be impaired, or in some cases, Since it may be necessary to spread the work manually, it is important to perform continuous work as much as possible in order to ensure quality.

For this reason, the temperature of the asphalt mixture is controlled at key points (for example, a plant or a site) from the production of the asphalt mixture to the construction. At 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, at the site, a contact-type thermometer is inserted by an operator into the asphalt mixture loaded on the carrier (for example, a dump truck), 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 shipment from the plant is appropriate, the temperature of the asphalt mixture drops during transportation, and the temperature of the asphalt mixture at the time of arrival at the site reaches the limit of the standard range. It may be lower. Therefore, it is required to control the temperature of the asphalt mixture during transportation, but in this case, it is necessary to measure the temperature of the asphalt mixture many times during transportation.

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

However, in the above-mentioned moisture content measurement, 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 upon arrival at the site is within the standard range. It may become or deviate from the standard range. Therefore, it is required to control the water content of the roadbed material during transportation, but in this case, it is necessary to measure the water content of the roadbed material many times during transportation.

When making measurements during transportation as described above, the driver parks the vehicle during transportation and inserts a contact thermometer into the asphalt mixture loaded on the 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 laborious task for the driver, and it also increases the time it takes for the carrier to arrive at the site. Therefore, it is required that the temperature of the asphalt mixture being transported and the water 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, and in this case, it is desired to control the viscosity in addition to the temperature.

Japanese Unexamined Patent Publication No. 2003-336210 Japanese Unexamined Patent Publication No. 2008-088698

The problem to be solved by the present invention is to provide a pavement material measuring device, a pavement material management device, and a pavement material management system capable of easily grasping the temperature, viscosity, or water content of the pavement material during transportation. That is.

The pavement material management device according to claim 1 includes a measuring unit that repeatedly measures the temperature, viscosity, or water content of the pavement material loaded on the transport vehicle, and the pavement material temperature and viscosity measured by the measuring unit. Alternatively, the receiving unit that receives the information transmitted via the communication network from the measuring device for pavement material provided with the transmitting unit that sequentially transmits the information on the water content to the communication network wirelessly, and the carrier. Based on the congestion information on the road to the site, the estimated arrival time of the carrier to arrive at the site is obtained, and based on the information received by the receiving unit, the temperature of the pavement material at the estimated arrival time, A prediction unit for obtaining a predicted value of viscosity or water content, a judgment unit for determining whether or not the predicted value obtained by the prediction unit is equal to or higher than a predetermined control value, and the judgment unit for determining the predicted value. When it is determined that the value is less than a predetermined control value, the information terminal of the transport vehicle is provided with a transmission unit for transmitting a notification of returning to the plant.

Further, the pavement material management device according to claim 2 is the pavement material management device according to claim 1, and the transmission unit of the pavement material management device has the expected value determined by the determination unit. When it is determined that the value is less than the control value, a notification for changing the set value regarding the temperature, viscosity or water content of the pavement material is transmitted to the information terminal of the plant .

Further, the pavement material management device according to claim 3 is the pavement material management device according to claim 1 or 2, wherein the pavement material measuring device repeats the outside air temperature around the carrier. The receiving unit further includes an outside air temperature sensor for measuring, and is characterized in that the receiving unit receives information on the outside air temperature measured by the outside air temperature sensor from the paving material measuring device.

Further, the pavement material management device according to claim 4 is the pavement material management device according to any one of claims 1 to 3, and the pavement material measuring device is the same as the transport vehicle on the earth. The receiving unit further includes an acquisition unit that repeatedly acquires information on the position, and the receiving unit receives information on the position of the transport vehicle acquired by the acquisition unit from the pavement measuring device .

Further, paving material for a management apparatus according to claim 5, in paving materials for the management apparatus according to any one of claims 1 to claim 4, wherein the determination unit, to the information received by the receiving unit Based on this, it is determined whether or not the temperature, viscosity or water content of the pavement material is equal to or higher than the predetermined control value, and the judgment unit determines that the temperature, viscosity or water content of the pavement material is less than the predetermined control value. When it is determined that there is, the transmitting unit of the pavement management device transmits a notification to return to the plant to the information terminal of the transport vehicle .

Further, the pavement material management device according to claim 6 is the pavement material management device according to claim 5, wherein the transmission unit of the pavement material management device is determined by the determination unit to determine the temperature of the pavement material. When it is determined that the viscosity or water content is less than the predetermined control value, a notification for changing the set value regarding the temperature, viscosity or water content of the pavement material is transmitted to the information terminal of the plant. And.

Further, the pavement material management device according to claim 7 identifies the transport vehicle by identifying the information received by the receiving unit in the pavement material management device according to any one of claims 1 to 6. The transmission unit of the pavement material management device further includes a storage unit that stores information related to the information, and transmits the information received by the reception unit to an information terminal at the site where the carrier is heading. And.

Further, the pavement material management device according to claim 8 is the pavement material management device according to claim 7, further, based on the information regarding the identification of the transport vehicle, the transmission destination from the information terminal for each site. The transmission unit of the pavement material management device includes a selection unit for selecting an information terminal, and transmits the information received by the reception unit to the transmission destination information terminal selected by the selection unit. characterized in that it.

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

It is a figure which shows the schematic structure of the asphalt mixture temperature control system (an example of the control system for pavement material) which concerns on 1st Embodiment. It is a figure which shows the schematic structure of the measuring device (an example of the measuring device for pavement material) 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 the schematic structure of the management server (an example of the pavement material management apparatus) 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 the schematic structure of the management server (an example of the pavement material management apparatus) which concerns on 3rd Embodiment. It is a graph which shows an example of the accumulated data which concerns on 3rd Embodiment. It is a graph for demonstrating the setting of the plant shipment temperature based on the accumulated data of winter shown in FIG. It is a graph for demonstrating the setting of the plant shipment temperature based on the accumulated data of summer shown in FIG. It is a flowchart which shows the flow of the temperature control process which concerns on 3rd Embodiment.

<First Embodiment>
The first embodiment will be described with reference to FIGS. 1 to 4. An asphalt mixture temperature control system, which is an example of a pavement material management system, will be described.

(Basic configuration)
As shown in FIG. 1, the asphalt mixture temperature control system 10 according to the first embodiment includes a measuring device (an example of a measuring device for a pavement material) 20 and a management server (an example of a pavement material management device) 30. It includes a plant information terminal 40 and a site information terminal 50. These measuring devices 20, the management server 30, the plant information terminal 40, and the site information terminal 50 are connected to each other so as to be able to communicate with each other via the communication network 60. As the communication network 60, for example, WAN (wide area network) or LAN (local area network) can be used.

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

The management server 30 has 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 transmitted from the measuring device 20 (for example, temperature information regarding the temperature of the asphalt mixture, temperature information regarding the outside air temperature, position information regarding the position of the carrier D, identification information of the carrier D, etc.). Further, the various information is transmitted to the plant information terminal 40 and the site information terminal 50 via the communication network 60. The storage unit 32 stores various 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, for example, a cloud server. As the storage unit 32, for example, an HDD (hard disk drive) or SSD (solid state drive) can be used, and as the control unit 33, for example, a CPU (central processing unit) can be used. Is.

The plant information terminal 40 has 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 and outside air temperature of the asphalt mixture and the position of the carrier D based on various information such as the temperature of the asphalt mixture, the outside air temperature, and the position of the carrier 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.

Like the plant information terminal 40, the site information terminal 50 has a communication unit (transmission unit and reception unit) 51, a display unit 52, and a control unit 53. 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 and outside air temperature of the asphalt mixture and the position of the carrier D based on various information such as the temperature of the asphalt mixture, the outside air temperature, and the position of the carrier D received by the communication unit 51. For example, the display unit 52, like the display unit 42 of the plant information terminal 40, 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 carrier 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 smartphone, or the like can be used, and it is preferable to use a portable information terminal. As the control unit 53, for example, a CPU can be used.

(measuring equipment)
Next, the above-mentioned measuring device 20 will be described in detail.

As shown in FIG. 2, the measuring device 20 has 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 carrier D, but can be removed as needed.

Each temperature sensor 21 is connected to the sensor box 23 by a heat-resistant cable 21a. 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 carrier D. As each temperature sensor 21, for example, a thermocouple type contact sensor can be used, and a non-contact sensor can be used in addition to the contact sensor. As the cable 21a, for example, a curl cable can be used. In FIG. 2, the heat insulating sheet (for example, linen cloth) covered with the asphalt mixture is not shown.

The outside air temperature sensor 22 is provided on the wall surface of the loading platform of the carrier 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 carrier 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 as in the temperature sensor 21 described above, and a non-contact sensor can be used in addition to the contact sensor. 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 carrier 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 individual voltage values measured by each temperature sensor 21 and the outside air temperature sensor 22 into temperature values. A voltage value is input to the sensor amplifier 23a from each temperature sensor 21 via the cable 21a, and a voltage value is input from the outside air temperature sensor 22 via the 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 wirelessly transmits the temperature information regarding each temperature value converted by the sensor amplifier 23a to the data logger 24 in real time. The transmission timing does not have to be real-time, and may be periodic (for example, every 5 minutes) or irregular. In addition to wireless transmission, wired transmission can be used, but wireless transmission is used in order to omit wiring work and improve the degree of freedom in mounting the sensor box 23. 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, and the battery can be replaced. The sensor amplifier 23a and the relay transmission unit 23b can be powered by the carrier D, but in order to omit the wiring work and improve the degree of freedom in mounting the sensor box 23, the built-in battery 23c It is preferable to take power from.

The data logger 24 has 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 takes power from a cigar socket (not shown) in the cabin.

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

The communication unit 24b uses the temperature information of the asphalt mixture and the temperature information of the outside air transmitted from the relay transmission unit 23b, and the position information of the carrier D acquired by the GPS receiver 24a as identification information of the carrier D (for example,). It is transmitted to the management server 30 together with the vehicle number) via the communication network 60. As the identification information of the carrier D, other information such as the number of the carrier D can be used in addition to the vehicle number of the carrier 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 outside air temperature information and the position information of the transport vehicle D are associated with the identification information of the transport vehicle D received together, and are stored as management information in the storage unit 32 of the management server 30.

For example, the storage unit 32 of the management server 30 stores management information as shown in FIG. As shown in FIG. 3, the management information includes each information of the position history of the carrier 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 the identification information of the carrier D. There is. For example, in the management server 30, the identification information of the carrier D, the current position of the carrier 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, and the information is received in time series, that is, It is stored in the storage unit 32 in association with the measurement time, and each information of the position history of the carrier D, the temperature history of the asphalt mixture, and the temperature history of the outside air is generated.

Here, in the carrier D having the vehicle number 1, the current positions of the carrier D obtained by the GPS receiver 24a are sequentially stored as a1, a2, a3, a4, and so on. Further, the temperature of the asphalt mixture measured by the temperature sensor 1 (first temperature sensor 21) is associated with the current position of the carrier D, such as 180 ° C., 180 ° C., 178 ° C., 177 ° C., and so on. It is saved sequentially in. Similarly, the temperature of the asphalt mixture measured by the temperature sensor 2 (second temperature sensor 21) is 180 ° C., 179 ° C., 179 ° C., 178 ° C., etc., while being associated with the current position of the carrier D. The temperature of the asphalt mixture, which was sequentially stored and measured by the temperature sensor 3 (third temperature sensor), was also associated with the current position of the carrier D, and was 180 ° C., 179 ° C., 178 ° C., 177 ° C.・ It is saved sequentially like this. Further, the outside air temperature measured by the outside air temperature sensor 22 is associated with the current position of the carrier D, such as 18.5 ° C., 17.9 ° C., 18.0 ° C., 17.6 ° C., and so on. It is saved sequentially. Such a storage process is the same for other transport vehicles D having a vehicle number of 2 or 3.

By associating the current position of the carrier D with the temperature of the asphalt mixture, the temperature of the temperature sensor 1 is 180 ° C. and the temperature of the temperature sensor 2 when the current position of the carrier D is a1. 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 carrier 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. The temperature of is 17.9 ° C. When the current position of the carrier 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. The temperature of is 18.0 ° C. Similarly, the individual temperatures of the temperature sensors 1, 2, and 3 and the outside air temperature are stored for each current position of the carrier D. The individual temperatures of the temperature sensors 1, 2, and 3 may be averaged and the average value may be stored.

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

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

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 and the outside air for each transport vehicle D. The temperature information and the position information of the carrier D are sequentially stored in the storage unit 32. Further, the management server 30 connects the predetermined plant information terminal 40 and the predetermined site information terminal 50 via the communication network 60 to various information (asphalt mixture temperature information, outside air temperature information, position of the carrier D) by the communication unit 31. Information, identification information of carrier D) is transmitted.

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

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

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

As a result, the plant worker can see the various information displayed by the display unit 42 of the plant information terminal 40, grasp the temperature of the asphalt mixture, the outside air temperature, and the position of the carrier D, and further arrive. It is possible to grasp the scheduled time and the planned travel route. Similarly, the on-site worker can grasp the temperature of the asphalt mixture, the outside air temperature, and the position of the carrier D by looking at various information displayed by the display unit 52 of the on-site information terminal 50, and further arrive. It is possible to grasp the scheduled time and the planned travel route.

The positions of the plant and the site are set by the plant information terminal 40. For example, the terminal user of the plant operates an input unit (for example, a keyboard, a mouse, etc.) 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 a plant or site is set on the map, the planned travel route and 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 carrier D are at least from the time of shipment to the time of arrival at the site (transportation). Middle), measured in real time by the temperature sensor 21 and the outside air temperature sensor 22. At the same time, the position of the carrier D is measured by the GPS receiver 24a. Then, each temperature information and the position information of the carrier D are stored in the management server 30, for example, a data area on the WEB through the communication network 60 (for example, a mobile communication system such as 3G or LTE) in real time.

After that, the stored data (for example, temperature information of the asphalt mixture, temperature information of the outside air, position information of the carrier D, identification information of the carrier D, etc.) are collected at the plant and construction site (material receiving place) where the asphalt mixture was shipped. ), And other management departments (headquarters, branches, sales offices, etc.) can access it with information terminals such as personal computers and tablet PCs, and constantly monitor the temperature of the asphalt mixture and the position of the carrier D in real time. be able to. By centrally managing the data by the management server 30 in this way, the data can be easily displayed and grasped on various information terminals at 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 mixture temperature until arrival at the site, 2. Grasp of the temperature decrease tendency, 3. Notification of the type or number of heat insulating sheets, 4. Adjustment of shipping temperature. 5. Reduction of fuel consumption / CO ₂ reduction, 6. Preparation / adjustment (efficiency) of mixture production by scheduled return time of dump, 7. Operation control of dump, 8. Quality assurance of asphalt mixture by temperature data control " And so on.

In addition, at the site, "1. Confirmation of the current position and estimated time of arrival of the dump truck, 2. Confirmation of the temperature of the asphalt mixture at the time of arrival, 3. Reduction of labor and improvement of safety by displaying the arrival temperature on the electronic blackboard, 4. Machinery Ensuring pavement quality in continuous work by adjusting the speed, 5. Ensuring compaction density by adjusting the strength of asphalt finishers such as tampers and vibes. "

In addition, as for others, "1. Dump truck operation within the jurisdiction and nationwide and the status of asphalt mixture temperature can be grasped, so management such as review of shipping system and strategic plant operation, 2. Transport vehicle D Precautions on the driving route (schools, hospitals, prohibited areas, etc.) and confirmation of the driving route / safe driving measures ”.

(Display example)
Here, a display example when displaying various information in addition to the above-mentioned temperature information on 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. Therefore, the management server 30 stores various information necessary for the following display example, and transmits the information to the plant information terminal 40 and the site information terminal 50 as needed.

Examples of the display by the plant information terminal 40 include "1. Display of planned travel route, 2. Display of vehicle position information, 3. Other display". 1. 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 for the site or the plant is displayed on the traveling route. At this time, the estimated time of arrival at the site or the plant may be displayed. 3. 3. In other displays, for example, the shipping date and time, the shipping plant name, the person in charge, the contact information, the construction name (sales destination), the asphalt mixture name, the loaded mass, the vehicle number, the driver name, the contact information, and the like are displayed.

By performing the above-mentioned "1. Display of planned travel route", it is possible to notify the driver of the travel route and to confirm the travel route (traffic prohibited place, etc.) before departure. In addition, it is possible to teach drivers dangerous and important points (kindergartens, schools, nursing homes, hospitals, construction sites, etc.). In addition to displaying the planned travel route, it is also possible to display the traveling speed of the vehicle.

As a display example by the site information terminal 50, as in the plant information terminal 40, there are "1. Display of planned travel route, 2. Display of vehicle position information, 3. Other display". 1. 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 vehicle position information, the current position of the vehicle heading for the site is displayed on the traveling route. At this time, the estimated time of arrival at the site may be displayed. 3. 3. In other displays, for example, the construction name, the asphalt mixture name, the construction type, the asphalt mixture temperature, the company name, the remarks, and the like are displayed.

As described above, according to the first embodiment, the temperature of the asphalt mixture loaded on the carrier D is repeatedly measured by the temperature sensor 21, and the temperature information regarding the temperature of the asphalt mixture measured by the temperature sensor 21 is obtained. Are sequentially transmitted wirelessly by the communication unit 24b. As a result, temperature information regarding the temperature of the asphalt mixture being transported can be obtained, so that the temperature of the asphalt mixture being transported can be easily grasped. For example, it is not necessary for the driver to park the carrier D during transportation and insert a thermometer into the asphalt mixture loaded on the carrier D to measure the temperature of the asphalt mixture. Further, it is possible to prevent the time required for the transport vehicle D to arrive at the site from being extended due to the manual temperature measurement during the transport.

In addition, quality can be ensured by grasping the temperature of the asphalt mixture and the current position of the carrier D. For example, a temperature control 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. Further, by grasping the current position of the transport vehicle D, continuous work (continuous construction) can be performed at the site, so that the flatness of the paved road surface can be ensured.

In addition, the safety aspect can be enhanced by grasping the current position of the carrier D and the temperature of the asphalt mixture. For example, it is possible to notify the route and alert the dangerous place, so that it is possible to suppress an accident when transporting the asphalt mixture. Further, since the temperature of the asphalt mixture can be continuously grasped, the temperature measurement at the time of arrival at the site can be simplified, and the temperature measurement work on the loading platform of the carrier D can be omitted.

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

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

In addition, by knowing the tendency of the temperature of the asphalt mixture to change, it is possible to adjust the production temperature of the mixture so that it becomes the optimum temperature when arriving at the site, and to adjust the curing method using a heat insulating sheet or the like. .. In the field, the strength of the tamper and vibrator of the asphalt finisher compaction mechanism can be adjusted automatically or manually to match the optimum output according to each temperature. Further, in the temperature control at the time of arrival of the transport vehicle, the safety can be improved by eliminating the need to go up on the loading platform of the transport vehicle D.

Here, when the running speed is automatically adjusted so as not to stop the asphalt finisher, or the strength of the tamper or vibrator of the asphalt finisher is automatically adjusted, a receiving unit or a control unit is provided on the asphalt finisher. According to various information received by the receiving unit (for example, temperature information of the asphalt mixture, temperature information of the outside air, position information of the carrier D, etc.), the control unit controls each part (control target part) of the asphalt finisher to control the asphalt. Adjust the running speed of the finisher and the strength of the tamper and vibrator.

In addition, it is possible to perform efficient management 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, it is possible to correct the scheduled arrival time, appropriately notify the change of the planned travel route, and reflect the short-term weather forecast (outside temperature, weather, wind). Therefore, it is possible to give a notification of temperature adjustment in anticipation of a change in the temperature of the mixture, a notification of covering with a tarpaulin or a heat insulating sheet, and a predictive measure.

Further, when the temperature of the asphalt mixture and the photograph are taken as quality control when the asphalt mixture arrives at the site, the carrier D is photographed by a camera mounted on a tablet terminal or the like instead of the conventional control method. As a result, the tablet terminal can display an electronic blackboard on which the temperature of the asphalt mixture captured from the data on the WEB server is described together with the background photograph (photograph of the carrier D) in the image of the photograph.

In addition, by recording the position information and speed of the asphalt finisher measured by a measuring device such as GPS or speedometer on the WEB server and incorporating it into this system, the plant where the information terminal is located and other management departments (headquarters, head office, etc.) It is possible to share the progress of the site in real time at branches, sales offices, etc., the plant can estimate the shipping amount and shipping timing, and the management department can detect troubles etc. at an early stage and deal with them. be able to.

Further, the presence / absence of the asphalt mixture, that is, the load can be estimated using each temperature sensor 21, and the presence / 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 or not the temperature measured by each temperature sensor 21 is equal to or higher than a predetermined temperature (for example, 100 ° C.), and if the temperature is determined to be equal to or higher than the predetermined temperature, the load is loaded. If it is determined that there is an object and 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>
The second embodiment will be described with reference to FIGS. 5 and 6. In the second embodiment, differences from the first embodiment (management server and temperature control), in particular, a transmission destination selection process when there are a plurality of plants and a plurality of sites will be described, and other explanations will be given. 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 transmission 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 composed of either software or hardware, or both.

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

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

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

In the example of FIG. 6, the carrier D having the vehicle number 1 loads the asphalt mixture at the plant A and delivers it to the site A1, and the carrier D having the vehicle number 2 loads the asphalt mixture at the plant A. The carrier D, which has a vehicle number of 3, loads the asphalt mixture at the plant B and delivers it to the site B1. In this way, 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 the transmission destination from the vehicle number of the transport vehicle D received by the communication unit 31 based on the above-mentioned management information. For example, when the vehicle number of the transport vehicle D is 1, various information (for example, temperature information of the asphalt mixture, temperature information of the outside air, position information of the transport vehicle D, transport vehicle D) is transmitted to the site information terminal 50 of the site A1. Identification information, etc.) is sent. 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.

In this way, the management server 30 selects the transmission destination from the plurality of site information terminals 50 based on the management information according to the vehicle number of the transport vehicle D to which the measurement device 20 of the transmission source is attached by the selection unit 33a. Various information is transmitted by the communication unit 31 to the site information terminal 50 of the selected transmission destination. As a result, various information transmitted from the source measuring device 20 is appropriately transmitted to the site information terminal 50 at the site to which the carrier D to which the source transmitting device 20 is attached is headed. The worker can grasp various information about the transport vehicle D heading to his / her own site by looking at various information displayed by the display unit 52 of the site information terminal 50.

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

<Third embodiment>
The third embodiment will be described with reference to FIGS. 7 to 11. In the third embodiment, the differences from the first embodiment (management server and temperature control), in particular, the notification process based on the temperature of the asphalt mixture being transported will be described, and other description will be omitted.

(Basic configuration)
As shown 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 composed of either one or both of software and hardware.

The prediction unit 33b obtains the estimated arrival time (estimated arrival time) at which the carrier D arrives at the site based on the traffic congestion information on the road where the carrier D heads for the site. The traffic jam information is acquired from a device provided by a traffic jam information provider such as the Japan Road Traffic Information Center via the communication network 60. Further, the forecasting unit 33b is based on the temperature information of the asphalt mixture and the weather forecast information (for example, weather and air temperature) received by the communication unit 31, the estimated temperature (estimated value) of the asphalt mixture at the above-mentioned estimated arrival time. Ask for. The weather forecast information is acquired from a device provided by a weather forecast information provider such as the Japan Meteorological Agency via the communication network 60.

Here, for example, as shown in FIG. 8, accumulated data in which the temperature (mixture temperature) of the asphalt mixture 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 the data accumulated in spring and autumn, and the mixture temperature in the first accumulated data A1 gradually decreases as the transportation time increases. The second accumulated data A2 (summer) is the data accumulated in the summer, and the mixture temperature in the second accumulated data A2 gradually increases as the transportation time increases. The third accumulated data A3 (winter) is the data accumulated in winter, and the mixture temperature in the third accumulated data A3 gradually becomes larger than that of the first accumulated data A1 as the transportation time increases. It is declining.

Such accumulated data and weather forecast information (for example, season, weather, temperature, etc.) are used by the forecasting unit 33b to grasp the degree of temperature change of the asphalt mixture with the passage of time, and the asphalt mixture at the estimated arrival time. The 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 predicted temperature of the asphalt mixture is obtained, and at the time of this prediction, it is also possible to use the outside air temperature measured by the outside air temperature sensor 22.

The determination unit 33c determines whether or not the current temperature of the asphalt mixture is equal to or higher than a predetermined control value (threshold value) based on the temperature information of the asphalt mixture received by the communication unit 31. 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 control value. The predetermined management value is set in advance in the storage unit 32 of the management server 30 by operating the input unit of the plant information terminal 40 by the terminal user of the plant.

When the determination unit 33c determines that the temperature (actual measurement temperature) or the expected temperature of the asphalt mixture is less than the control value, the transmission unit 31 refers to the information terminal of the carrier D (for example, a car navigation device, a smartphone, etc.). And sends a notification to return to the shipping plant (the plant where the carrier D loaded the asphalt mixture), and further, to the plant information terminal 40 of the shipping plant, the plant shipping setting value (for example, the plant shipping temperature setting value) related to the asphalt mixture Send a notification to change the plant-shipped chemical addition amount setting value, etc.). 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 and operates the input unit of the plant information terminal 40 to change and reset the plant shipment setting value. .. The notification includes a notification that does not include the meaning of an instruction (command) and a notification that includes the meaning of an instruction.

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

Further, for example, when the current season is summer and the transportation time is less than one hour, the terminal user of the plant has a second accumulation displayed on the display unit 42 of the plant information terminal 40 as shown in FIG. By visually recognizing the data A2 and grasping that the expected temperature is equal to or higher than the predetermined control value B1 even if the plant shipment temperature set value is lowered by 10 ° C. (see graph A2a in FIG. 10), the input unit of the plant information terminal 40 Can be operated to lower the plant shipping temperature setting value by 10 ° C. Further, when the current season is summer and the transportation time is 2 hours, it is understood that the expected temperature is equal to or higher than the predetermined control value B1 even if the plant shipment temperature set value is lowered by 5 ° C. (in FIG. 10). The plant shipping temperature set value can be lowered by 5 ° C. by operating the input unit of the plant information terminal 40 (see graph A2b).

Since the plant shipment temperature setting value is appropriately set in this way, it is possible to prevent the asphalt mixture whose temperature is less than the predetermined control value, that is, the asphalt mixture that cannot be used for construction, from being transported to the site by the transport vehicle D. can. Further, the plant-shipped chemical addition amount setting value can be appropriately set as described above, and either or both of the temperature setting and the addition amount setting can be selectively performed as necessary. The temperature of the asphalt mixture changes depending on various conditions such as the weather and air temperature during transportation, the transportation time, and the presence or absence of a heat insulating sheet. For this reason, the temperature of the asphalt mixture during transportation may not change in the same way as the accumulated data, so even if the plant shipping temperature setting value is set appropriately as described above, the temperature of the asphalt mixture during transportation can be adjusted. It is important to know and may be reconfigured if necessary.

(Temperature control process)
Next, the flow of the temperature control process by the asphalt mixture temperature control system 10 will be described. In the plant, the asphalt mixture is loaded on the loading platform of the carrier D, and the measuring device 20 is attached to the carrier D. After that, the heat insulating sheet is put on the asphalt mixture on the loading platform of the carrier D, and the 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 carrier D by each temperature sensor 21, outside air temperature sensor 22, and GPS receiver 24a, and measures them. Various information such as temperature information of the asphalt mixture, temperature information of the outside air, position information of the carrier D, and identification information of the carrier D are transmitted to the management server 30 in real time by the transmission unit 24b via the communication network 60 ( For details, refer to the first embodiment).

In step S2, 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 asphalt mixture is mixed for each 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 further 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, the management server 30 determines whether or not the temperature (mixture temperature) of the asphalt mixture is equal to or higher than a predetermined control value (for example, 110 ° C.) by the determination unit 33c based on the temperature information of the asphalt mixture. .. This predetermined control value is preset in the storage unit 32 of the management server 30 by operating the input unit of the plant information terminal 40 by the terminal user of the plant.

If it is determined in step S3 above that the temperature of the asphalt mixture (mixture temperature) is not equal to or higher than the predetermined control value, that is, less than the predetermined control value (NO in step S3), the management server 30 is determined in step S4. Sends a notification to the information terminal of the carrier D to return to the plant by the communication unit 31, and further, in step S5, the communication unit 31 notifies the information terminal 40 of the plant to change the plant shipment setting value. Send.

On the other hand, if it is determined in step S3 above that the temperature of the asphalt mixture (mixture temperature) is equal to or higher than a predetermined control value (YES in step S3), the management server 30 is determined by the prediction unit 33b in step S6. The estimated arrival time when the carrier D arrives at the site is calculated, and further, in step S7, the expected temperature (estimated mixture temperature) of the asphalt mixture at the calculated estimated arrival time is calculated.

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

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

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

If it is determined in step S9 that the carrier D has not arrived at the site (NO in step S9), the process is returned to step S1 and the processes of steps S1 to S9 are repeated.

On the other hand, in step S9 described above, if it is determined that the carrier D has arrived at the site (YES in step S9), in step S10, the site information terminal 50 is set to the temperature of the asphalt mixture during construction by the workers at the site. In response to the input, the input temperature of the asphalt mixture at the time of construction is transmitted to the management server 30. The temperature of the asphalt mixture at the time of construction is measured by a worker at the site using a temperature measuring device and is input to the 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 carrier D. It is stored and managed by the storage unit 32.

According to such a temperature control step, when the temperature of the asphalt mixture becomes less than a predetermined control value, a notification of returning to the plant is transmitted to the information terminal of the carrier 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 a sound such as a voice or a beep sound to notify the driver of the transport vehicle D. As a result, the driver of the carrier D recognizes that it is necessary to return to the plant, and drives the carrier D to return to the plant. Therefore, it is possible to suppress the asphalt mixture whose temperature is less than a predetermined control value, that is, the asphalt mixture that cannot be used for construction, to be transported to the site by the transport vehicle D, so that wasteful transportation work can be suppressed. Further, even if the expected temperature of the asphalt mixture becomes less than a predetermined control value, a notification of returning to the plant is transmitted to the information terminal of the transport vehicle D, so that wasteful transport work can be reliably suppressed.

Further, when the temperature or the expected temperature of the asphalt mixture becomes less than a predetermined control value, a notification for changing the plant shipment set value is transmitted to the information terminal 40 of the plant. In response to this, the plant information terminal 40 displays a notification for changing the plant shipment setting value on the display unit 42, or outputs a sound such as a voice or a beep sound to notify the plant worker. As a result, 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, the plant shipment set value is changed to an appropriate value, so that the temperature of the asphalt mixture or the expected temperature is prevented from becoming less than a predetermined control value. As a result, it is possible to prevent the asphalt mixture that cannot be used for construction from being transported to the site by the transport vehicle D, so that wasteful transport 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 and the expected temperature of the asphalt mixture become less than the predetermined control values, 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 notified. A notification is sent to change the plant shipment settings. As a result, it is possible to suppress the asphalt mixture that cannot be used for construction to be transported to the site by the transport vehicle D, so that wasteful transport work can be suppressed and the transport efficiency can be improved. Further, it is possible to reduce the fuel consumption and CO _{2 of the transport vehicle D.}

<Other Embodiments>
In the above-described embodiment, temperature information and location 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, and for example, the plant information terminal 40. The temperature information and the position information may be transmitted directly to the site information terminal 50 or only via the communication network 60. At this time, it is also possible to store and manage the temperature information and the position information 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 the temperature information and the position information function as the management server (an example of the pavement material management device) 30.

Further, in the above-described embodiment, the sensor box 23 and the data logger 24 are separate bodies, but the present invention is not limited to this. For example, the sensor amplifier 23a of the sensor box 23 is incorporated into the data logger 24 to incorporate the sensor box 23. The 23 and the data logger 24 may be integrated.

Further, in the above-described embodiment, the notification for changing the plant shipment setting value is transmitted to the information terminal 40 of the shipping plant, but the present invention is not limited to this. For example, change information such as + 5 ° C.) and changeable range (for example, + 5 ° C. to + 10 ° C.) may be transmitted. When sending a change notification, the expected temperature of the asphalt mixture is less than the predetermined control value. Therefore, the management server 30 obtains the difference between the predicted temperature and the predetermined control value by the prediction unit 33b, and determines the amount of change to raise the plant shipment temperature set value by at least the difference or more. Then, the management server 30 transmits the change information regarding the change amount to the plant information terminal 40 by 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 notifies the terminal user of the plant of the change, if necessary. When the plant information terminal 40 receives the change information regarding the changeable range, the change information is displayed and the changeable range is notified to the terminal user of the plant.

Further, in the above-described embodiment, an asphalt mixture is adopted as the pavement material, and the temperature thereof is measured and controlled by a contact type or non-contact type sensor, but the present invention is not limited to this, and for example, the pavement material. A roadbed material (for example, crushed stone) may be used as the pavement material, and the water content thereof may be measured and controlled by a contact type or non-contact type sensor, or a goose asphalt mixture may be used as the pavement material and its viscosity may be used. May be measured and managed. The goose asphalt mixture is a highly fluid material and is transported by heating and stirring in a cooker wheel. In order to determine the viscosity of this goose asphalt mixture, for example, by measuring the torque of the stirrer of the cooker car, the resistance value that the stirrer receives from the goose asphalt mixture at the time of stirring is grasped, 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 gist thereof. For example, some components may be deleted from all the components shown in the above-described embodiment. Further, the components of different embodiments may be combined as appropriate.

10 Asphalt mixture temperature control system 20 Measuring equipment 21 Temperature sensor 21a Cable 22 Outside air temperature sensor 22a Cable 23 Sensor box 23a Sensor amplifier 23b Relay transmitter 23c Battery 24 Data logger 24a GPS receiver 24b Communication unit 30 Management server 31 Communication unit 32 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 (8)

A measuring unit that repeatedly measures the temperature, viscosity, or water content of the pavement material loaded on the carrier, and information on the temperature, viscosity, or water content of the pavement material measured by the measuring unit wirelessly to the communication network. A transmitting unit that sequentially transmits, and a receiving unit that receives the information transmitted via the communication network from a measuring device for pavement material provided with the same.
Based on the traffic congestion information on the road where the carrier heads to the site, the estimated arrival time when the carrier arrives at the site is obtained, and based on the information received by the receiving unit, the pavement at the estimated arrival time. A prediction part for obtaining the prediction value of the temperature, viscosity or water content of the material,
A determination unit for determining whether or not the expected value obtained by the prediction unit is equal to or higher than a predetermined control value, and a determination unit.
When the determination unit determines that the expected value is less than the predetermined control value, the transmission unit that transmits a notification to return to the plant to the information terminal of the transport vehicle, and the transmission unit.
A management device for pavement materials, which is characterized by being provided with. When the determination unit determines that the predicted value is less than the predetermined control value, the transmission unit of the pavement material management device refers to the temperature, viscosity, or the pavement material of the pavement material with respect to the information terminal of the plant. The pavement material management device according to claim 1 , wherein a notification for changing a set value relating to a water content is transmitted. The paving material measuring device further includes an outside air temperature sensor that repeatedly measures the outside air temperature around the carrier.
The receiving unit is paved according to claim 1 or claim 2, characterized in that receiving via the communication network information about the outside air temperature measured by the outside air temperature sensor from the measuring device for the paving materials Material management device . The paving material measuring device further includes an acquisition unit for repeatedly acquiring information on the position of the carrier on the earth.
Any one of claims 1 to 3, wherein the receiving unit receives information about the position of the transport vehicle acquired by the acquiring unit from the paving material measuring device via the communication network. Management device for paving materials described in. The determining unit, on the basis of the received information by the receiving unit, the temperature of the paving material, viscosity or water content is determined whether at least a predetermined control value,
When the determination unit determines that the temperature, viscosity, or water content of the pavement material is less than the predetermined control value, the transmission unit of the pavement material management device sends the information terminal of the transport vehicle to the information terminal. The pavement management device according to any one of claims 1 to 4, wherein a notification of returning to the plant is transmitted. When the determination unit determines that the temperature, viscosity, or water content of the pavement material is less than the predetermined control value, the transmission unit of the pavement material management device refers to the information terminal of the plant. The pavement material management device according to claim 5 , wherein a notification for changing a set value regarding the temperature, viscosity or water content of the pavement material is transmitted. The storage unit further includes a storage unit that stores the information received by the reception unit in association with the information related to the identification of the carrier.
The transmitting portion of the paving materials for the management apparatus, either the information received by the reception unit of claims 1 to 6, characterized in the Turkey be transmitted to the information terminal of the site where the truck is directed Management device for pavement materials described in Crab. Further, it is provided with a selection unit for selecting a destination information terminal from the information terminals for each site based on the information related to the identification of the transport vehicle.
7. The transmission unit of the pavement management device transmits the information received by the reception unit to the information terminal of the transmission destination selected by the selection unit. The described pavement management device.

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