JP5331351B2 - Cargo loading terminal and site entry / exit judgment method - Google Patents

Description

  The present invention relates to a cargo loading terminal and a site entry / exit determination method that determine the entry / exit of a site by measuring the current position of a transported cargo.

In recent years, a management system has been developed to prevent misdelivery and loss of parcel delivery cargo and to grasp the route to the destination and the time to arrival. As a method for knowing the time until the cargo arrives at the destination, it is necessary to first grasp the current position of the cargo being transported, and various methods for grasping the current position have been proposed.
Such freight delivery management systems include collection registration / shipment registration data and shipping from the collection / delivery office, dispatch area relay station, second relay station, delivery area relay station, and delivery station, respectively. Land passage registration data, transport relay registration data / delivery place passage registration data, and arrival registration data are transmitted to the collection and delivery central processing station in real time via the communication network and read into the host computer. A technique for centrally managing so as to be able to respond to inquiries is known (see, for example, Patent Document 1). In this technology, the delivery station inputs the recipient name as delivery completion information to the mobile communication terminal when delivery is completed, transmits it to the collection and delivery central processing station through the communication network, and reads it into the host computer. It enables you to respond to inquiries.

  In addition, in a freight delivery tracking system that provides freight status from freight delivery slip drafting to delivery completion, an IC tag that electronically stores the ID of each freight, carried by a delivery person, and using GPS A position detection device, a portable terminal having an IC tag detection device, connectable to a network, a delivery tracking server connected to the network and storing status data for each cargo, and a Web server connected to the network And the Web server is known to output the status of the specific cargo notified from the delivery tracking server 1a as a response to the inquiry about the specific cargo (see, for example, Patent Document 2).

JP 2002-46816 A Japanese Patent No. 3870417

  However, in the above prior art, at each physical distribution base, an operator connects to the management server from a portable terminal or the like, inputs it, or reads an ID from an IC tag attached to the cargo and transmits it to the management server. If the work is not performed, it cannot be determined whether or not the cargo has passed through each distribution base.

  Further, when reading the ID from the IC tag attached to the cargo, there is a possibility that a reading error or reading omission may occur, and it may not be possible to accurately determine whether the cargo has passed through the base.

  The present invention has been made in view of the above, and it is an object of the present invention to provide a cargo loading terminal and a location entry / exit determination method that can accurately and easily determine whether a cargo has passed through a location.

In order to solve the above-described problems and achieve the object, the present invention is a cargo loading terminal mounted on a cargo to be delivered, which is a reference point of a logistics company scattered from the departure point to the destination. A base information storage unit for storing a base table registered in association with base identification information for identifying a base, position information indicating the position of the base, and a predetermined base range from the base; A receiver that receives radio waves from a base station that transmits radio waves including its own location information to a mobile phone or the cargo loading terminal, and extracts location information of the base stations from the radio waves received by the receiver , Simple positioning for obtaining position information corresponding to the base identification information from the base table, and calculating a distance between the base station and the base from the position information of the base station and the position information corresponding to the base identification information Run Positioning unit, and whether the distance calculated by the positioning unit is within the base range corresponding to the base identification information registered in the base table, and the calculated distance is the base point A site confirmation that determines whether the cargo loading terminal has entered or exited from the site indicated by the site identification information corresponding to the site range based on the determination result when it is within the range A transmission unit connected to a network and monitoring the cargo loading terminal, and the site confirmation unit includes: When the calculated distance is within the base range, it is determined that the cargo loading terminal has entered the base indicated by the base identification information corresponding to the base range, and the transmission unit The fact that it has entered the base indicated by the different information is transmitted to the monitoring center, and the base table is further registered in the base identification information in association with a predetermined error range from the base, The cargo loading terminal determines whether the distance calculated by the positioning unit is within the error range, and when determining that the distance is within the error range, the cargo loading terminal sets a positioning interval, which is an interval of the simple positioning. A positioning interval switching unit that switches from a long cycle of a predetermined interval to a short cycle that is shorter than the long cycle, and the positioning unit is a positioning interval of the short cycle switched by the positioning interval switching unit. And performing the simple positioning .

  Further, the present invention is a site entry / exit determination method executed by the cargo loading terminal.

  According to the present invention, based on the determination result of whether or not the distance between the base calculated by the simple positioning and the base station that transmitted the radio wave is within the base range, the cargo loading terminal corresponds to the base range. By determining whether the base has entered or exited the base, and sending the fact that the base has entered or exited to the monitoring center, it is possible to easily and accurately determine the passage of each terminal for loading the cargo. There is an effect that it is possible to more accurately monitor the cargo loading terminal in the monitoring center.

  Exemplary embodiments of a cargo loading terminal and a base entry / exit determination method according to the present invention will be explained below in detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing the order of movement of the cargo loading terminal according to the present embodiment. When the cargo is collected, the cargo loading terminal 200 is mounted on the cargo C with a label T on which a delivery destination is displayed, and the monitoring center 400 is used by using the portable reading terminal 100 as necessary. To communicate with. There are a plurality of bases that are the reference locations of the logistics company from when the cargo loading terminal 200 departs from the departure reference point 100 that is the departure point to the arrival reference point that is the arrival point. . When the cargo loading terminal 200 departs from the departure reference point 100, the cargo loading terminal 200 passes through a plurality of passing bases registered in the transportation route, arrives at the arrival reference point 100, and then is delivered to the final destination and delivery is completed. Collected.
The number of bases can be up to 100 in the cargo loading terminal 200, but this is only an example, and the present invention is not limited to this.

  The cargo loading terminal 200 of the present embodiment performs simple positioning of the current position during passage between the bases shown in FIG. 1 and when entering and exiting each base. FIG. 2 is a schematic diagram showing the order in which the cargo loading terminal 200 passes through the base A. Each base has a unique base range 301 for determining whether the cargo loading terminal 200 has entered or exited the base. Since the base range 301 also plays a role of preventing misidentification of nearby bases, the base range 301 is assigned for each base with a certain distance from the base. In addition, since the simple positioning depends on the installation of the mobile phone base stations 101a to 101-n, it is necessary to determine the exact location of the base, so the error range 302 for correcting the location of the base is centered on the location of the base. Is provided.

  For example, three types of base ranges can be set such as 600 m, 1500 m, and 4000 m, and an error range can be set as one type of 2000 m. The error range is determined based on a radius centered on the base. Further, both the base range and the error range can be set from 1 to 9999 m, and the numerical value can be changed at the monitoring center 400. However, the values of these base ranges and error ranges are examples, and are not limited to these numerical values.

  Further, the mobile phone base stations 101a to 101-n transmit radio waves to the mobile phone and the cargo loading terminal 200, and the radio waves include latitude and longitude which are location information of the base station itself. Yes. As shown in FIG. 2, the cargo loading terminal 200 first enters the base range 301, then enters the error range 302, and passes through the base A. After passing through the base A, the base station exits the base range 301 after exiting the error range 302. When the cargo loading terminal 200 receives a periodic positioning start instruction from the monitoring center 400, the cargo loading terminal 200 starts simple positioning and receives radio waves from the mobile phone base stations 101 a to 101 n.

  Here, the base range can be arbitrarily changed according to the density of bases in each region. The base range is set short in areas where bases are close to each other, such as the city center. It will be set longer in areas that are not. On the other hand, since the error range is based on the installation of the mobile phone base stations 101a to 101-n, the error range is set to be the same for all regional bases in order to determine the exact position of the bases. . For this reason, the base range may be smaller than the error range. In this case, first enter the error range, then enter the base range, exit the base range, and then exit the error range. It becomes.

  FIG. 3 is a block diagram showing a configuration of the cargo loading terminal 200 according to the present embodiment. The cargo loading terminal 200 includes a radio wave reception unit 501, a base information storage unit 502, a positioning unit 503, a positioning interval switching unit 504, a counter 505, a communication unit 506, a base confirmation unit 507, and an update unit 508. And mainly.

  The radio wave receiver 501 receives radio waves from the mobile phone base stations 101a to 101-n.

  The site information storage unit 502 is a storage medium such as a memory or a hard disk drive (HDD) that stores the site table 600 (see FIG. 4).

  The base table 600 is a table in which data necessary for determining entry and exit from the base, such as a base range and an error range, is determined for each registered base. FIG. 4 is an explanatory diagram showing an example of the base table 600 stored in the base storage unit 502 according to the present embodiment.

As shown in FIG. 4, the base table 600 includes a base code that is identification information for identifying the starting base, the target base, and a base passing between the base, the longitude / latitude coordinates indicating the base position, and the base. The base range indicating the range of the area, the error range set to correct the accurate position information of the base range, and the constant to be compared with the number of receptions of the radio wave counted by the counter 505 when determining the approach to the base range The base entry determination counter, which is a threshold value, and the base departure determination counter, which is a constant threshold value compared with the number of times of reception of the radio wave counted by the counter 505 at the time of determination of exit from the base range, The arrival flag shown is associated. Here, the arrival flag is a flag indicating whether or not the vehicle has arrived at the base. When the arrival flag is ON, it indicates that the vehicle has arrived at the base.
In the present embodiment, a 6-digit number is used as the base code, but this is an example, and the present invention is not limited to this.

  The positioning unit 503 extracts the coordinates of the mobile base stations 101a to 101-n from the radio waves received from the mobile phone base stations 101a to 101-n by the radio wave receiving unit 501. Further, the base table 600 is searched based on the base code, and the base coordinates are acquired. The distance between the mobile phone base stations 101a to 101-n and the base is calculated from the obtained base coordinates and the coordinates of the mobile phone base stations 101a to 101-n extracted from the radio waves.

The positioning interval switching unit 504 switches the positioning cycle interval to the long cycle mode or the short cycle mode in accordance with confirmation of entry into or exit from the base range. Specifically, for example, the positioning interval switching unit 504 switches between the long cycle mode and the short cycle mode when a switching instruction is received from the site confirmation unit 507 when the site entry determination counter reaches a certain number of times. Process.
The positioning interval can be set, for example, to 15 minutes for the long cycle mode and 5 minutes for the short cycle mode, and this numerical value can be changed by the monitoring center 400. However, the interval of each mode is an example and is not limited thereto.

  When the cargo loading terminal 200 enters the base range and receives an instruction to count the number of times of reception of radio waves from the base confirmation unit 507, the counter 505 receives the radio waves from the mobile phone base stations 101a to 101-n. The number of times of reception is counted.

  The communication unit 506 receives an instruction to start or end the regular positioning from the monitoring center 400, or transmits a signal for entering or leaving the base to the monitoring center 400 together with the terminal ID and the latitude / longitude coordinates measured. Communication with the monitoring center 400 is performed.

  The site confirmation unit 507 transmits an instruction to start counting the number of times of reception of radio waves to the counter 505 when it is determined that the distance calculated by the positioning unit 503 is within the site range or the error range. Further, when it is confirmed that the number of receptions of the radio waves counted by the counter 505 has reached a certain number, the arrival flag of the base code in the base area that has entered is turned ON. Therefore, the cargo loading terminal 200 confirms at which base the cargo arrival terminal 200 is currently arriving based on whether or not the arrival flag has been updated, and finally confirms that it has arrived at the arrival point.

  After the delivery is completed, the update unit 508 checks whether the coordinates of the latitude / longitude coordinates of the bases are the same in the monitoring center 400 and the base table 600. If they are different, in particular, the coordinate version of the monitoring center is the latest. In this case, the coordinate version of the base table 600 is updated to the latest version coordinate received from the monitoring center 400.

  FIG. 5 is a hardware configuration diagram of the cargo loading terminal 200 according to the present embodiment. As shown in FIG. 5, the cargo loading terminal 200 has an integrated module in which a communication module 801 and a GPS module 802 are integrated, and the integrated module constitutes the position information acquisition unit 210 shown in FIG. Then, communication with the GPS satellite is performed via the external antenna I / F 804. The control main unit 805 stores software such as the security information notification unit 230 and the center information reception unit 295, and controls these operations. Further, the cargo loading terminal 200 controls the operation of the device such as the buzzer 290 and the power supply operation from the battery 275 in the control sub-unit 806, and also indicates the operational status of the sensor 270 and the cargo loading terminal 200. (Light Emitting Diode) 807 and the operation of the backup unit 809 that stores the above-described software backup data are controlled. The built-in antenna 803 constitutes a spare antenna when the external antenna I / F 804 stops operating for some reason, and the power SW 808 is a switch for starting and stopping the cargo loading terminal 200.

  Next, periodic positioning processing by the cargo loading terminal 200 configured as described above will be described. 6 and 7 are flowcharts showing a processing procedure from the start to the end of the regular positioning by the cargo loading terminal 200 according to the present embodiment.

  First, the communication unit 506 receives a periodic positioning start instruction from the monitoring center 400 (S700). Then, the positioning interval switching unit 504 starts simple positioning in the long cycle mode (S701).

  Details of the procedure of the simple positioning process (S702) will be described. FIG. 8 is a flowchart showing the procedure of the simple positioning process.

  First, the radio wave receiving unit 501 receives radio waves (step S800). Next, the positioning unit 503 extracts coordinates indicating the latitude / longitude information of the mobile base station from the radio wave received by the radio wave receiving unit 501 (step S801). Then, the positioning unit 503 searches the base table 600 using the base code as a key, and acquires coordinates indicating the latitude and longitude information of the base (step S802). The positioning unit 503 calculates the distance between the mobile base stations 101a to 101-n and the base from these two coordinates (step S803). The above is a series of procedures of the simple positioning process, which is repeated until the communication unit 506 receives a periodic positioning cancellation instruction from the monitoring center 400.

  Next, the positioning interval switching unit 504 determines whether or not the distance calculated by the simple positioning in the long cycle mode is within the base range (step S703). If it is determined that it is within the base range (step S703: Yes), the positioning interval is switched to the short cycle mode and the simple positioning process is continued (step S704). Then, when switching to the short cycle mode, the counter 505 starts counting the number of times of reception of radio waves (step S709).

  On the other hand, when the positioning interval switching unit 504 determines that the distance calculated by the simple positioning process is not within the base range (step S703: No), it is determined whether the calculated distance is within the error range ( Step S705). If it is determined that it is within the error range (step S705: Yes), the positioning interval is switched to the short cycle mode (step S706), and the simple positioning process is continued (step S707). If it is determined that the calculated distance is within the base range (step S708: Yes), an instruction to start counting the number of times of reception of radio waves is transmitted to the counter 505 (step S709). If it is determined (step S708: No), the simple positioning process is repeated without switching the positioning interval until it is determined that it is in the base range (step S707).

  When the positioning interval switching unit 504 determines that the distance calculated by the simple positioning process is not within the base range (step S703: No), and determines that the calculated distance is not within the error range (step S705). : No), that is, when it is determined that the calculated distance is not in either the base range or the error range, the simple positioning process (step S702) is continued without switching the positioning interval.

  When the positioning interval switching unit 504 switches the positioning interval to the short cycle mode, the counter 505 receives an instruction for counting the number of radio wave receptions from the site confirmation unit 507, and counts the number of radio wave receptions (step S709).

When the counter 505 starts counting, the site confirmation unit 507 performs a site entrance determination counter (for example, 3 times) in which the counted number of receptions of radio waves indicated by the site entrance determination counter registered in the site table 600 is a constant count. ) Is determined (step S710). When the site confirmation unit 507 confirms that the site entry determination counter, which is a certain count, has been reached (step S710: Yes), the communication unit 506 uses the portable reading terminal 100 to monitor the monitoring center. A “base entry” signal is transmitted to 400 together with the terminal ID and longitude / latitude coordinates (step S711). Subsequently, the site confirmation unit 507 turns on the arrival flag of the site table 600 (step S712).
Here, if the arrival flag is “ON”, it is not determined whether the base is “entering the base” again. In addition, when the determination of “entering a base” is made for a plurality of bases, a plurality of “entering bases” signals are simultaneously transmitted to the monitoring center 400.

  In addition, the fixed count number as a threshold value registered in the base entrance determination counter shown here is an example, and is not limited to this.

  On the other hand, if the site confirmation unit 507 determines that the number of radio wave receptions has not yet reached the number of base entry determination counters (step S710: No), the simple positioning continues in the short cycle mode until the base arrival determination counter is reached. The process is repeated (step S707).

When the arrival flag is updated by the site confirmation unit 507 (step S712), the positioning interval switching unit 504 switches the positioning interval to the long cycle mode and continues the simple positioning (steps S713 and S714). Thereby, since the execution timing of simple positioning in a base becomes long, there exists an advantage that the power consumption in the time slot | zone when the cargo loading terminal 200 is staying in the base can be reduced.
Then, the site confirmation unit 507 determines whether or not the distance calculated by the simple positioning process exceeds the site range and the error range (step S715). When it is determined that it is within the base range and the error range (step S715: Yes), the base confirmation unit 507 transmits an instruction to start counting the number of times of reception of radio waves to the counter 505, and the counter 505 confirms the base. The count start instruction is received from the unit 507, and the number of radio wave receptions is counted (step S716). On the other hand, when the site confirmation unit 507 determines that the distance calculated by the simple positioning process is not yet within the site range and the error range (step S715: No), until it is determined that the distance is within the site range and the error range, The simple positioning process is continuously performed without counting the number of receptions of radio waves (step S714).

  Here, regarding the switching of the positioning interval, when a plurality of bases are detected at the same time and switched to different cycle modes, the long cycle mode has priority. For example, in the case where the site A is switched to 15-minute intervals after “base-enter” is transmitted, and the site B enters the error range and is switched to 5-minute intervals, the 15-minute interval is prioritized.

  The site confirmation unit 507 determines whether or not the number of radio wave receptions counted by the counter 505 has reached a site departure determination counter that is a certain count number (for example, once) registered in the site table 600. (Step S717). Then, when the site confirmation unit 507 confirms that the site departure determination counter has been reached (step S717: Yes), the communication unit 506 uses the portable reading terminal 100 to notify the monitoring center 400 that “site departure”. Is transmitted together with the terminal ID and the longitude / latitude coordinates (step S718).

  The base departure determination counter can be set from 1 to 99 times, and the threshold of the base departure determination counter can be changed by the monitoring center 400. Moreover, the threshold value of the base departure determination counter shown here is an example, and is not limited to this.

  Here, when the cargo loaded with the cargo loading terminal 200 reaches the final destination and the delivery is completed, a message indicating the completion of the delivery is transmitted to the monitoring center 400 using the portable reading terminal 100, and the monitoring center 400 transmits an instruction to cancel the periodic positioning to the cargo loading terminal 200 mounted on the cargo.

  Therefore, the cargo loading terminal 200 confirms whether or not the communication unit 506 has received a periodic positioning cancellation instruction from the monitoring center 400 (step S719). If the instruction for canceling the regular positioning has not been received yet (step S719: No), since the delivery has not yet been completed, the simple positioning is continued from step S702, and the next base is entered and exited. The above-described processing such as simple positioning from step S702 is repeated. In addition, since cargo is mounted on the aircraft from the departure base MB to the arrival base MB shown in FIG. 1, simple positioning by the cargo loading terminal 200 is not executed in order to prevent adverse effects due to electromagnetic waves.

  On the other hand, if a periodic positioning cancellation instruction is received from the monitoring center 400 in step S719 (step S719: Yes), it is determined that the delivery is completed, and the positioning interval switching unit 504 cancels the simple positioning operation, The simple positioning is finished (step S720).

  The above is the procedure of the process from the start to the end of the regular positioning by the cargo loading terminal 200 according to the present embodiment. Thus, by calculating the current position information of the cargo loading terminal 200 based on the position information included in the radio waves of the mobile phone base stations 101a to 101-n, the GPS and the position information providing service are not utilized. Since the current position can be ascertained, the position of the cargo being transported can be measured while reducing power consumption and communication costs.

Here, in the monitoring center 400 that has received the base entry / exit, the terminal ID, and the latitude / longitude coordinates, for each terminal ID received, for each cargo loading terminal 200 corresponding to the terminal ID, Alternatively, the operation information from the base and the latitude and longitude coordinates are stored in the management history database in time series as delivery history information. Here, when the cargo loading terminal 200 is also performing the timed positioning by the GPS, it is configured to transmit the periodic positioning, the terminal ID, and the latitude / longitude coordinates measured to the monitoring center 400 every time the timed measurement is performed. May be. In this case, the monitoring center 400 records, in the management history database, information on periodic positioning, as well as receiving time and latitude and longitude coordinates, in addition to entering or leaving the base.
The delivery history information in the management history database is displayed on the display device of the monitoring center 400 as a delivery history screen. Further, the management history database of the monitoring center 400 is accessed from the portable reading terminal 100 to display a delivery history screen on the portable reading terminal 100, or the management of the monitoring center 400 from the management server (not shown) of the logistics company. It is possible to access the history database and display the delivery history screen on the management server of the logistics company.

  FIG. 9 is an explanatory diagram illustrating an example of a delivery history screen displayed on the monitoring center 400, the portable reading terminal 100, and the distribution company management server. As shown in FIG. 9, on the right side of the screen, operation information of reception time, base entry, base exit is displayed in time series. Further, as shown in FIG. 9, a map is displayed on the screen, and operation information for entering or leaving a base is displayed on the map. As a result, the current delivery status of the cargo loading terminal 200 can be easily and accurately grasped. In addition, when the cargo loading terminal 200 also performs a timed positioning by GPS, the latitude / longitude coordinates acquired from the cargo loading terminal 200 by the monitoring center 400 may be displayed on the map.

  Next, an operation process of the cargo loading terminal 200 after the end of the regular positioning will be described. In the base table 600, coordinates of longitude and latitude that are the positions are registered for each base, but the position of the base may be changed. In this case, the base coordinates of the base table 600 are the latest. Is no longer a thing. On the other hand, the latest information on the coordinates of the base is grasped on the monitoring center side and registered and managed in a database or the like. For this reason, in the cargo loading terminal 200 of the present embodiment, after the completion of cargo delivery, the version of the base coordinates registered in the base table 600 is older than the base coordinate version registered in the monitoring center 400. In addition, the latest version coordinates are acquired from the monitoring center 400 and registered in the base table 600. FIG. 10 is a flowchart showing a procedure of update processing of the version of latitude / longitude information in the base table 600 performed after the end of the regular positioning. The update process of the latitude / longitude information version may be performed at other timing such as before starting the regular positioning.

  First, the site confirmation unit 507 determines whether delivery has been completed by confirming that the arrival point has been reached (step S900). If it is determined that the delivery has not yet been completed (step S900: No), the update process to the latest version of the coordinates is not performed. On the other hand, when determining that the delivery has been completed (step S900: Yes), the communication unit 506 receives the latest version of the latitude and longitude of the base from the monitoring center 400 (step S901). Then, the positioning interval switching unit 504 confirms whether or not the version of the coordinates of the base in the base table 600 is the same as the version of the coordinates of the monitoring center 400 (step S902). If the versions of the base table 600 and the monitoring center 400 are different (step S902: No), the latest latitude / longitude information of the monitoring center 400 is downloaded (step S903), and the version of the base table 600 is updated (step S903). Step S904).

  On the other hand, when the versions of the base table 600 and the monitoring center 400 are the same (step S902: Yes), the operation process is completed without updating the base table 600. By such processing, the coordinates of the base registered in the base table 600 can be kept up-to-date.

  Thus, in the cargo loading terminal 200 according to the present embodiment, based on the determination result of whether or not the distance between the base calculated by simple positioning and the base station that transmitted the radio wave is within the base range, It is determined whether the cargo loading terminal has entered or exited the site corresponding to the site range, and the fact that the cargo loading terminal has entered or exited is transmitted to the monitoring center 400, thereby simplifying the passage of the cargo loading terminal through each site. Thus, the cargo loading terminal can be monitored more accurately in the monitoring center.

  Further, in the cargo loading terminal 200 according to the present embodiment, the current position of the cargo loading terminal 200 is determined based on the coordinates of the base station and the base coordinates included in the radio waves of the mobile phone base stations 101a to 101-n. By performing the positioning, the current position can be grasped without using the GPS or the position information providing service, so that the position of the cargo being transported can be measured while reducing the power consumption and the communication cost.

It is a figure which shows the order of a movement of the cargo loading terminal 200 concerning this Embodiment. It is a figure which shows the order in which the cargo loading terminal 200 enters and exits from the base range indicating a certain area of the base. It is a block diagram which shows the structure of the cargo loading terminal 200 which concerns on this Embodiment. It is a figure which shows the display of the base table 600 concerning this Embodiment. It is a block diagram which shows the hardware constitutions of the cargo loading terminal 200 which concerns on this Embodiment. It is a flowchart which shows the procedure of the process from the start of regular positioning by the cargo loading terminal 200 concerning this Embodiment to completion | finish. It is a flowchart which shows the procedure of the process from the start of regular positioning by the cargo loading terminal concerning this Embodiment to completion | finish. It is a flowchart which shows the procedure of the simple positioning process of the terminal 200 for cargo loading concerning this Embodiment. It is explanatory drawing which shows an example of a delivery log | history screen. It is a flowchart which shows the procedure of the update process of the version of the latitude longitude information of the base table 600 of the cargo loading terminal 200 concerning this Embodiment.

Explanation of symbols

100 portable reading terminal 200 cargo loading terminal 300, 302 error range 301 site range 400 monitoring center 501 radio wave receiving unit 502 site information storage unit 503 positioning unit 504 positioning interval switching unit 505 counter 506 communication unit 507 site checking unit 508 updating unit 600 base table

Claims (9)

A cargo loading terminal mounted on the cargo to be delivered,
Base identification information for identifying bases that are reference sites of logistics companies scattered from the starting point to the destination, position information indicating the position of the bases, and a predetermined base range from the bases A base information storage unit that stores a base table registered in association with each other;
A receiver that receives radio waves from a base station that transmits radio waves including its own location information to a mobile phone or the cargo loading terminal;
Extracting position information of the base station from the radio wave received by the receiving unit, obtaining position information corresponding to the base identification information from the base table, and corresponding to the base station position information and the base identification information A positioning unit that performs simple positioning to calculate a distance between the base station and the base from position information;
When the distance calculated by the positioning unit is within the base range corresponding to the base identification information registered in the base table, and the calculated distance is within the base range In addition, based on the determination result, a base confirmation unit that determines whether the cargo loading terminal has entered the base indicated by the base identification information corresponding to the base range or escaped from the base,
A transmission unit connected to the network and transmitting to the monitoring center that monitors the cargo loading terminal, the fact that the base identification information indicated by the base identification information is in and out ,
The site confirmation unit determines that the cargo loading terminal has entered the site indicated by the site identification information corresponding to the site range when the calculated distance is within the site range,
The transmitting unit transmits to the monitoring center that it has entered the base indicated by the base identification information,
The base table further registers the base identification information in association with a predetermined error range from the base,
The cargo loading terminal is:
It is determined whether or not the distance calculated by the positioning unit is within the error range, and when it is determined that the distance is within the error range, the positioning interval that is the simple positioning interval is set to a length of a predetermined interval. A positioning interval switching unit that switches from a cycle to a short cycle that is shorter than the long cycle, and
The positioning unit performs the simple positioning at the short-period positioning interval switched by the positioning interval switching unit;
Cargo loading terminal characterized by. When the base confirmation unit determines that the calculated distance is within the base range for a predetermined first number of times, the cargo loading terminal determines that the base identification information corresponding to the base range is The cargo loading terminal according to claim 1 , wherein the cargo loading terminal is determined to have entered the base shown. The cargo loading terminal according to claim 2 , wherein the base table further registers the base identification information in association with the first number of times. The positioning interval switching unit further switches the positioning interval to the long cycle after the site confirmation unit determines that the cargo loading terminal has entered the site.
After the positioning unit determines that the cargo loading terminal has entered the site, the positioning unit executes the simple positioning at the long-period positioning interval switched by the positioning interval switching unit. The cargo loading terminal according to claim 2 , wherein the cargo loading terminal is provided. After the site confirmation unit determines that the cargo loading terminal has entered the site, the distance newly calculated by the positioning unit corresponds to the site identification information registered in the site table. From the base indicated by the base identification information corresponding to the base range when the calculated distance is out of the base range. It is determined that it has escaped,
The freight loading terminal according to any one of claims 1 to 4 , wherein the transmission unit further transmits to the monitoring center that the vehicle has escaped from the site indicated by the site identification information. When the base confirmation unit determines that the calculated distance is outside the base range for a predetermined second number of times, the cargo loading terminal determines that the base identification information corresponding to the base range is The cargo loading terminal according to claim 5 , wherein the cargo loading terminal is determined to have escaped from the indicated base. 7. The cargo loading terminal according to claim 6 , wherein the base table further registers the base identification information in association with the second number of times. A receiving unit that receives the latest version of the location information of the base from the monitoring center;
The received version of the location information of the location is compared with the version of the location information of the location registered in the location table, and the version of the location information of the location registered in the location table is received. If lower, the said base table, the location information of the latest version, any one of the claims 1-7, characterized in that further comprising an update unit for registering in association with the base identification information Cargo loading terminal described in 1. A site entry / exit determination method executed by a cargo loading terminal mounted on a cargo to be delivered,
The cargo loading terminal includes base identification information for identifying a base that is a reference location of a logistics company scattered from a departure place to a destination, position information indicating the position of the base, A base information storage unit for storing a base table registered in association with a predetermined base range is provided.
A reception step of receiving radio waves from a base station that transmits radio waves including its own location information to a mobile phone or the cargo loading terminal;
The base station location information is extracted from the radio wave received in the reception step, the location information corresponding to the location identification information is obtained from the location table, and the base station location information and the location identification information are supported. A positioning step for performing simple positioning for calculating a distance between the base station and the base from position information;
When the distance calculated by the positioning step is within the base range corresponding to the base identification information registered in the base table, and the calculated distance is within the base range And a site confirmation step for determining whether the cargo loading terminal has entered the site indicated by the site identification information corresponding to the site range or escaped from the site based on the determination result;
Sending to the monitoring center that is connected to the network and monitors the cargo loading terminal, to the effect that the location identification information indicates the access to the location;
Only including,
The site confirmation step determines that the cargo loading terminal has entered the site indicated by the site identification information corresponding to the site range when the calculated distance is within the site range;
The transmitting step transmits to the monitoring center that it has entered the base indicated by the base identification information,
The base table further registers the base identification information in association with a predetermined error range from the base,
The base entrance / exit determination method is:
It is determined whether or not the distance calculated in the positioning step is within the error range, and when it is determined that the distance is within the error range, the positioning interval that is the simple positioning interval is set to a length of a predetermined interval. A positioning interval switching step for switching from a cycle to a short cycle which is an interval shorter than the long cycle,
The positioning step includes performing the simple positioning at the short-period positioning interval switched in the positioning interval switching step;
A base entrance / exit determination method characterized by

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