JP4723622B2 - COMMUNICATION TERMINAL, COMMUNICATION PROCESSING SYSTEM, AND ITS COMMUNICATION PROCESSING METHOD - Google Patents

Description

  The present invention relates to a communication terminal, a communication processing system, and a communication processing method thereof, and more particularly, to a communication terminal, a communication processing system, and a communication processing method thereof capable of tracking and managing the position of cargo in a logistics transaction. .

  Today, various logistics transactions are taking place between remote locations in Japan. In such a logistics transaction, it is important to manage whether or not the cargo has correctly reached the destination. Therefore, in order to manage whether the cargo has arrived at the destination, the current position of the cargo in the logistics process is sequentially measured using, for example, a GPS receiver, and the current position of the cargo is determined using position information based on this GPS positioning. A technique for tracking and managing has been proposed (see, for example, Patent Document 1).

In recent years, with the spread of IP technology such as the Internet, worldwide expansion (globalization) has been attempted in various fields. In particular, the trend of globalization is significant in international logistics transactions. However, in the case of international logistics transactions, not only domestic logistics transactions, but also transactions at a remote place, as well as through people from various countries, the loss and arrival of cargo to be transported The difficulty of grasping time has been pointed out. Therefore, in international logistics transactions, it is required to more appropriately manage whether or not the cargo has correctly reached the destination by the set arrival time without losing the cargo to the destination. As described above, in international logistics transactions, there is a possibility that a service for acquiring the current position of a cargo and tracking the cargo using the acquired current position will be rapidly spread in the future.
JP 2001-213503 A

  When managing the current position of a cargo in a logistics transaction using, for example, location information based on GPS positioning, a terminal equipped with at least a GPS receiver is provided in a transport vehicle (or transport ship) that transports the cargo or the cargo itself. Like that. Thereby, it is possible to track the current position of a transport vehicle (or transport ship) or a cargo provided with a terminal with a GPS receiver.

  However, for example, when a plurality of cargoes are stored in a container and transported, even if a terminal is provided for each cargo as well as the container, the electromagnetic waves transmitted from the cargo stored in the container are not It will be shielded by the metal container and it will be difficult to wirelessly communicate with the outside of the container via the terminal. Therefore, although it is possible to track the current position of the container itself or the cargo once stored in the container and then carried out of the container, it is difficult to track the current position of the cargo once stored in the container. There was a problem. As a result, the position of the cargo stored in the container can be determined from the time the multiple cargoes whose current location is managed are temporarily stored in the container until the multiple cargos are unloaded at the destination. It was difficult to track and manage properly.

  The present invention has been made in view of such a situation, and a communication terminal and a communication processing system that can suitably track and manage the position of cargo in logistics transactions even in an environment where electromagnetic waves are shielded An object of the present invention is to provide a communication processing method thereof.

In order to solve the above-described problem, a communication terminal according to the present invention includes a position information acquisition unit that acquires position information of a second cargo in which one or more first cargos are stored , and a base that is a fixed radio station A parent that communicates by forming a Zigbee network using Zigbee between mobile wireless communication means that wirelessly communicates with a station and one or more child Zigbee communication means provided in each of the one or more first cargoes a Zigbee communication means, identification information for identifying said first cargo, and identification information acquiring means for acquiring from a child Zigbee communication means via said parent Zigbee communication means, has been the location acquired by the positional information acquiring means the information management apparatus for managing information, at least the position information, and the moving body the identification information acquired by the identification information acquiring means And transmission means for transmitting via the line communication unit, wherein the parent Zigbee communication means and child Zigbee communication means, on the Zigbee network, are classified into three types, the first Zigbee communication means, the Zigbee One exists in the network, controls the network, the second Zigbee communication means has a data relay function of the identification information transmitted from the other Zigbee communication means, and the third Zigbee communication means It has only a function of transmitting the identification information to other Zigbee communication means, and the parent Zigbee communication means forms the Zigbee network according to a predetermined connection procedure as the first Zigbee communication means, and the child Zigbee communication means Is used as the second or third Zigbee communication means. Join Zigbee network, and transmits indirectly the identification information is relayed directly or other child Zigbee communication means with respect to the parent Zigbee communication means.

In order to solve the above-described problem, the communication terminal of the present invention is a communication terminal provided in a first cargo, and a parent Zigbee communication means provided in a second cargo in which the first cargo is stored. Child Zigbee communication means for forming a Zigbee network using Zigbee and communicating, storage means for storing identification information for identifying the first cargo, and the parent Zigbee communication means existing on the Zigbee network Or a supply means for supplying the identification information stored in the storage means to the other child Zigbee communication means provided in the other first cargo via the child Zigbee communication means, and the parent Zigbee The communication means and the child Zigbee communication means are classified into three types on the Zigbee network. One Zigbee communication means exists in the Zigbee network and controls the network, and the second Zigbee communication means has a data relay function of the identification information transmitted from the other Zigbee communication means, The third Zigbee communication means has only a function of transmitting the identification information to other Zigbee communication means, and the parent Zigbee communication means uses the Zigbee network as the first Zigbee communication means according to a predetermined connection procedure. The child Zigbee communication means participates in the Zigbee network as the second or third Zigbee communication means and relays the identification information directly or indirectly through the other child Zigbee communication means. It characterized that you send to Zigbee communication means.

The communication processing system of the present invention, in order to solve the problems described above, provided in the second goods a first communication terminal provided in one or a plurality of first cargo, the first cargo is stored Each of the first communication terminals forms a Zigbee network using Zigbee between the other first communication terminal and the second communication terminal. Child Zigbee communication means for communicating with each other, storage means for storing identification information for identifying the first cargo provided with the first terminal, the second communication terminal existing on the Zigbee network , or the like Supply means for supplying the identification information stored in the storage means to the first communication terminal via the child Zigbee communication means , wherein the second communication terminal The Zigbee network is formed between position information acquisition means for acquiring position information of the second cargo , mobile radio communication means for wireless communication with a base station which is a fixed radio station, and the child Zigbee communication means and the parent Zigbee communication means for communicating said supplied by the supply means, the identification information of the first communication terminal stores existing on the Zigbee network, the parent Zigbee communication from the first communication terminal an identification information acquisition means for acquiring via means, to the information management apparatus for managing the position information acquired by the position information obtaining unit, the identification information acquired by at least said position information, and the identification information acquiring means the and transmission means for transmitting via the mobile radio communications unit, the parent Zigbee communication means and child Zi The bee communication means is classified into three types on the Zigbee network, the first Zigbee communication means exists in the Zigbee network, controls the network, and the second Zigbee communication means It has a data relay function for the identification information transmitted from other Zigbee communication means, and the third Zigbee communication means has only a function for transmitting the identification information to other Zigbee communication means, and the parent Zigbee communication The means forms the Zigbee network according to a predetermined connection procedure as the first Zigbee communication means, and the child Zigbee communication means joins the Zigbee network as the second or third Zigbee communication means, directly or Relay other child Zigbee communication means Characterized by indirectly transmitting said identification information to said parent Zigbee communication means.

Communication processing method of the present invention, in order to solve the problems described above, provided in the second goods a first communication terminal provided in one or a plurality of first cargo, the first cargo is stored In the communication processing method of the communication processing system comprising the second communication terminal, each of the first communication terminals uses Zigbee between the other first communication terminal and the second communication terminal . Communicating by forming a Zigbee network, storing identification information for identifying the first cargo provided with the first communication terminal, stored in the second communication terminal existing on the Zigbee network the identification information are, supplied via the Zigbee network, the second communication terminal, the second acquiring position information of the cargo, in wireless communication with the base station is a fixed wireless stations, said first 1 pass Communicate to form the Zigbee network between the signal terminals, the supplied by the supply means, the identification information of the first communication terminal stores existing on the Zigbee network, the first communication At least the position information and the identification information are transmitted via a base station to an information management apparatus that acquires from the terminal and manages the acquired position information, and the first communication terminal and the second communication The terminal is classified into three types on the Zigbee network, one first Zigbee communication means exists in the Zigbee network, controls the network, and the second Zigbee communication means It has a data relay function of the identification information transmitted from the Zigbee communication means, and the third Zigbee communication means has other Zigbee the second communication terminal forms the Zigbee network in accordance with a predetermined connection procedure as the first Zigbee communication means, and has the function of transmitting the identification information to the ee communication means, and the first communication terminal Participates in the Zigbee network as the second or third Zigbee communication means, and transmits the identification information to the second communication terminal directly or indirectly through another first communication terminal It is characterized by doing.

  According to the present invention, it is possible to suitably track and manage the position of cargo in a physical distribution transaction even in an environment where electromagnetic waves are shielded.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, before describing an embodiment of the present invention, a schematic concept according to the present invention will be described. FIG. 1 shows a state of a plurality of cargoes 3-1 to 3-n stored inside the container 1 when the plurality of cargoes 3-1 to 3-n are transported after being stored in the container 1. Is shown. As shown in FIG. 1, a plurality of cargoes 3-1 to 3-n are stored in a container 1, a communication terminal 2a is provided in the container 1 itself, and each of the cargoes 3-1 to 3-n is respectively provided. Communication terminals 2b-1 to 2b-n are provided. The communication terminals 2a and 2b-1 to 2b-n provided in the container 1 and the plurality of cargoes 3-1 to 3-n can wirelessly communicate via a base station (not shown).

  However, it is difficult to track the current positions of the cargoes 3-1 to 3-n once stored in the container 1. Hereinafter, this will be specifically described with reference to FIG. FIG. 2 shows a state where electromagnetic waves sent from the cargoes 3-1 to 3-n stored inside the container 1 are shielded by the metal container 1. The electromagnetic waves transmitted from the communication terminals 2b-1 to 2b-n provided in the cargoes 3-1 to 3-n inside the container 1 are shielded by the metal container 1, and thus the communication terminals 2b-1 to 2b. -N is difficult to wirelessly communicate with the outside of the container 1. Therefore, although it is possible to track the current position of the container 1 itself or the cargos 3-1 to 3-n that are once stored in the container 1 and then carried out of the container 1, the cargo once stored in the container 1 It was difficult to track the current positions of 3-1 to 3-n. As a result, the plurality of cargoes 3-1 to 3-n, which are targets of management of the current position, are once stored in the container 1, and then the plurality of cargoes 3-1 to 3-n outside the container 1 at the destination. It has been difficult to properly track and manage the positions of the cargoes 3-1 to 3-n stored in the container 1 until the goods are unloaded.

  Therefore, in order to solve such a problem, in the embodiment of the present invention, the communication terminals 2a and 2b-1 to 2b-n provided in the container 1 and the cargos 3-1 to 3-n are close to each other. A Zigbee communication unit using Zigbee (registered trademark), which is one of the distance wireless communication standards, is provided. As shown in FIG. 3, between the Zigbee communication unit provided in each communication terminal 2b-1 to 2b-n in the container 1 and the Zigbee communication unit provided in the communication terminal 2a, for example, a mesh type or a tree Network, and each identification information (for example, identification number) uniquely assigned to each communication terminal 2b-1 to 2b-n (or each Zigbee communication unit) is transferred to the outside of the container 1 via the Zigbee communication unit. The communication terminals 2a are aggregated as appropriate. The communication terminal 2a provided outside the container 1 is connected to each communication terminal 2b-1 to 2b-n (or each transmitted from the communication terminals 2b-1 to 2b-n in the container 1 via the Zigbee communication unit). Each identification information (for example, identification number) about each Zigbee communication part) is received, and each received identification information is sent to a server (not shown) via a base station (not shown) together with the current location information of the communication terminal 2a. Send as needed. At this time, the communication terminal 2a provided outside the container 1 serves as a gateway when each of the communication terminals 2b-1 to 2b-n in the container 1 communicates with a server existing outside the container 1. It will be.

  Thereby, even in an environment where electromagnetic waves are shielded as in the container 1 or the like, the positions of the cargoes 3-1 to 3-n in the logistics transaction can be suitably tracked and managed. Hereinafter, embodiments of the present invention will be specifically described.

  FIG. 4 shows the overall configuration of the network system 11 to which the present invention is applied.

  In the network system 11, a base station 13 which is a fixed radio station is installed in each cell in which a communication service providing area is divided into a desired size, and a provider (operator) of a public mobile phone (mobile phone) is installed. Each base station 13 is installed in each cell. For example, in the case of the operator A, a plurality of base stations 13-1-1 to 13-1-n are installed as the base station 13-1 managed by the operator A. For example, in the case of the operator B, a plurality of base stations 13-2-1 to 13-2-n are installed as the base station 13-2 managed by the operator B. For example, in the case of the operator C, a plurality of base stations 13-3-1 to 13-3-n are installed as the base station 13-3 managed by the operator C. Hereinafter, the same applies to the base station 13-n managed by the operator N. In the embodiment of the present invention, the case where there are n operators of public mobile telephones (mobile telephones) has been described, but the number n of operators may be one or more. In the embodiment of the present invention, the communication terminals 2a and 2b-1 to 2b-n are connected to a base station 13 managed by any one of a plurality of operators.

  These base stations 13-1 to 13-n include code division multiple access systems in which the communication terminals 2a and 2b-1 to 2b-n, which are mobile radio stations, are called W-CDMA (Wideband-Code Division Multiple Access), for example. Wireless connection is made by various wireless connection methods such as GSM (Global System for Mobile Communications) method. For example, when wirelessly connected by a code division multiple access method called W-CDMA, for example, 2 [Mbps] of a frequency band of 2 [GHz] is used, and 2 [Mbps] when moving and 384 [Kbps] when moving Data can be communicated at high speed at the data transfer rate. The communication terminals 2a and 2b-1 to 2b-n are attached to a transport vehicle (transport ship) that moves between international countries or the cargo itself. Accordingly, there are generally a plurality of communication terminals 2a and 2b-1 to 2b-n depending on the amount of cargo (or transportation vehicles, etc.) to be transported. In the case of the embodiment of the present invention, a plurality of cargoes 3-1 to 3-n are stored in the container 1, the container 1 itself is provided with a communication terminal 2a, and each of the cargoes 3-1 to 3-n. Are assumed to be provided with communication terminals 2b-1 to 2b-n, respectively. Of course, there may be a plurality of containers 1 in which a plurality of cargoes 3 are stored.

  The communication terminals 2a and 2b-1 to 2b-n include a GPS receiver (not shown) (GPS receiver 41 in FIG. 5), and GPS waves (GPS information from the GPS satellites 12-1 to 12-4). ) Is received by the GPS receiver.

  The base stations 13-1 to 13-n are connected to a roaming network group 14 that is a public line network via a wired line, and one roaming network is installed for each mobile phone operator (operator). Are managed. For example, the operator A has a roaming network 14-1 installed and managed. Further, for example, the operator B has a roaming network 14-2 installed and managed. Further, for example, a roaming network 14-3 is installed and managed for the operator C. Similarly, for example, the operator N is installed and managed by the roaming network 14-n.

  The roaming network group 14 includes a wired or wireless network 15 (for example, the Internet (IP), a LAN (Local Area Network), a WAN (Wide Area Network), etc.) via an access server (not shown) of an Internet service provider. Are connected). The network 15 includes a server 16 that manages position information related to the communication terminals 2a and 2b-1 to 2b-n, which are appropriately transmitted from the communication terminals 2a and 2b-1 to 2b-n via the roaming network group 14. Information management apparatus) is connected. In the following, the base stations 13-1 to 13-n are collectively referred to as the base station 13 when it is not necessary to individually distinguish them. The communication terminals 2a and 2b-1 to 2b-n are hereinafter referred to as “communication terminal 2” when it is not necessary to distinguish between them.

  FIG. 5 shows an internal configuration of the communication terminal 2 (2a or 2b-1 to 2b-n) according to the present invention. In the case of FIG. 5, the internal configuration of the communication terminal 2 assuming a case where wireless connection is made by a code division multiple access method called W-CDMA, for example, is shown. Of course, other wireless connection methods are used. It may be. For example, when a GSM connection method is used, GMSK (Gaussian Filtered Minimum Shift Keying) is used as a digital weighting method. In addition, processing by any connection method such as W-CDMA wireless connection method or GSM wireless connection method can be performed, and as appropriate, W-CDMA wireless connection method, GSM wireless connection method, etc. Several wireless connection methods may be selectively used.

  As shown in FIG. 5, the radio signal transmitted from the base station 13 is received by the antenna 31 and then input to the receiving circuit (RX) 33 via the antenna duplexer (DUP) 32. The receiving circuit 33 mixes the received radio signal with the local oscillation signal output from the frequency synthesizer (SYN) 34 and converts the frequency into an intermediate frequency signal (down-conversion). Then, the reception circuit 33 orthogonally demodulates the down-converted intermediate frequency signal and outputs a reception baseband signal. The frequency of the local oscillation signal generated from the frequency synthesizer 34 is instructed by a control signal SYC output from the control unit 38.

  The reception baseband signal from the reception circuit 33 is input to the signal processing unit 36. The signal processing unit 36 includes a RAKE receiver (not shown). In this RAKE receiver, a plurality of paths included in the received baseband signal are despread with each spreading code (that is, the same spreading code as that of the spread received signal). Then, the signals of the respective paths subjected to the despreading process are subjected to coherent Rake synthesis after the phase is adjusted. The data sequence after Rake combining is subjected to deinterleaving and channel decoding (error correction decoding), and then binary data determination is performed. Thereby, received packet data of a predetermined transmission format is obtained. This received packet data is input to the compression / decompression processor 37.

  The compression / decompression processing unit 37 is configured by a DSP (Digital Signal Processor) or the like, and the received packet data output from the signal processing unit 36 is separated for each medium by a demultiplexing unit (not shown), and the separated data for each medium Each is decrypted.

  On the other hand, when transmitting the positional information regarding the communication terminal 2 to the server 16 via the roaming network group 14, the control part 38 is based on GPS positioning based on the GPS wave (GPS information) received by the GPS receiving part 41. Position information is generated, and position information based on the generated GPS positioning is input to the compression / decompression processing unit 37.

  The compression / decompression processing unit 37 multiplexes data including position information based on GPS positioning from the control unit 38 according to a predetermined transmission format by a demultiplexing unit (not shown) and then packetizes the packetized transmission packet data. The data is output to the processing unit 36.

  The signal processing unit 36 performs spread spectrum processing on the transmission packet data output from the compression / decompression processing unit 37 using the spread code assigned to the transmission channel, and outputs the output signal after the spread spectrum processing to the transmission circuit (TX ) 35. The transmission circuit 35 modulates the signal after the spread spectrum processing using a digital modulation method such as a QPSK (Quadrature Phase Shift Keying) method, under the control of the control unit 38. The transmission circuit 35 combines the digitally modulated transmission signal with a local oscillation signal generated from the frequency synthesizer 34 and frequency-converts (up-converts) the signal into a radio signal. Then, the transmission circuit 35 amplifies the radio signal generated by this up-conversion at high frequency so that the transmission power level instructed by the control unit 38 is obtained. The radio signal amplified by the high frequency is supplied to the antenna 31 through the antenna duplexer 32 and transmitted from the antenna 31 to the base station 13.

  The control unit 38 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). The CPU is loaded into the RAM from a program stored in the ROM or the storage unit 39. In addition, various processes are executed in accordance with various application programs including an operating system (OS), and various control signals are generated and supplied to the respective units to centrally control the communication terminal 2. The RAM appropriately stores data necessary for the CPU to execute various processes.

  The storage unit 39 is composed of, for example, a flash memory element that is an electrically rewritable and erasable nonvolatile memory, an HDD (Hard Disc Drive), and the like, and various application programs executed by the CPU of the control unit 38 and various types. The data group is stored. The storage unit 39 stores a command program composed of commands, various firmware, and the like in each memory area. In addition, the storage unit 39 stores each piece of identification information (for example, an identification number) uniquely assigned to each communication terminal 2 (communication terminals 2a and 2b-1 to 2b-n. A clock circuit (timer) 40 for measuring the current accurate current time is provided.

  The GPS receiver 41 receives GPS waves (GPS information) from the GPS satellites 12-1 to 12-4 via the GPS antenna 42 under the control of the controller 38. This GPS information includes, for example, transmission time information from the respective GPS satellites 12-1 to 12-4. Thereafter, the GPS information is input to the control unit 38. And the control part 38 calculates the positional information (latitude / longitude information) which shows the present location of the communication terminal 2 using the acquired GPS information (In addition, for example, it can calculate from 3 thru | or four GPS information. Desirably, position information based on GPS positioning, which is position information indicating the current location of the communication terminal 2, is obtained. In general, latitude and longitude are acquired as position information obtained based on the GPS information, but address information corresponding to latitude and longitude may be acquired. Therefore, “position information based on GPS positioning” includes information such as position information (for example, latitude / longitude information) calculated from GPS information and address information corresponding to the information.

  The Zigbee communication unit 43 is a communication module using Zigbee (registered trademark), which is one of short-range wireless communication standards. Communication using Zigbee (registered trademark) has a lower data transfer rate (up to 250 kbps) and a transmission distance (up to 30 m) than when using Bluetooth (registered trademark), which is a short-range wireless communication standard of the same type. However, there is an advantage that the power is saved and the cost is low. In general, the configuration of the Zigbee protocol stack includes a physical layer, a media control layer (MAC layer), a network layer, an application support sublayer, and an application layer. Among these, the physical layer and the media control layer (MAC layer) are compliant with IEEE 802.15.4, and the network layer and the application support sublayer are defined by the Zigbee Alliance.

  FIG. 6 illustrates a schematic configuration inside the Zigbee communication unit 43. As shown in FIG. 6, the Zigbee communication unit 43 includes an RF circuit unit 51, an O-QPSK (Offset-QPSK) modulation / demodulation circuit unit 52, a MAC circuit unit 53, and a clock synchronization circuit unit 54 together with an antenna 44. The RF circuit unit 51 conforms to IEEE802.15.4, and mainly includes a 2.4 GHz band transmission circuit and reception circuit, and performs transmission and reception via the antenna 44. The O-QPSK modulation / demodulation circuit unit 52 complies with IEEE 802.15.4, and performs O-QPSK digital modulation / demodulation when performing wireless communication using Zigbee. Of course, other digital modulation / demodulation methods may be used. The MAC circuit unit 53 conforms to IEEE802.15.4, and operates as an interface between the network layer and the physical layer such as the RF circuit unit 51 and the O-QPSK modulation / demodulation circuit unit 52. The clock synchronization circuit unit 54 synchronizes the clock with the control unit 38 of the communication terminal 2.

  The acceleration sensor 45 detects acceleration generated in the communication terminal 2 and generates a detection signal. The impact sensation 46 detects an impact generated in the communication terminal 2 and generates a detection signal. The gyro sensor 47 detects an angular velocity generated in the communication terminal 2 and generates a detection signal. The power supply circuit 49 generates a predetermined operating power supply voltage Vcc based on the output of the battery 48 and supplies it to each circuit unit.

  Next, a method for aggregating each identification information using the communication terminals 2a and 2b-1 to 2b-n will be described. First, it is assumed that a plurality of cargoes 3-1 to 3-n are stored in a container 1 and the container 2 is transported from point A to point B by a transport vehicle (or transport ship), for example. Before the plurality of cargoes 3-1 to 3-n are stored in the container 1, the communication terminals 2b-1 to 2b-n are attached to the cargos 3, respectively. Identification information (for example, an identification number) is uniquely assigned in advance to the communication terminals 2b-1 to 2b-n (or each Zigbee communication unit 43). Such identification information is stored in the storage unit 39 of each communication terminal 2. FIG. 8 shows a correspondence table of identification numbers assigned in advance to the respective communication terminals 2b-1 to 2b-n. As shown in FIG. 8, for example, the identification number “101” is assigned to “communication terminal 2b-1”, and the identification number “102” is assigned to “communication terminal 2b-2”. . Further, for example, an identification number “5” is assigned to “communication terminal 2a”.

  After the communication terminals 2b-1 to 2b-n are attached to the cargoes 3-1 to 3-n, the cargos 3 are stored in the container 1. Thereafter, the communication terminal 2 a is also attached to the container 1. When the transport vehicle (or transport ship) departs from the point A, the communication terminal 2 a starts communication with the server 16 via the base station 13. At this time, before the communication terminal 2a starts communicating with the server 16, the communication terminals 2b-1 to 2b-n provided in the communication terminal 2a and the cargoes 3-1 to 3-n stored in the container 1 For example, a mesh-type or tree-type network is formed. Of course, after the cargoes 3-1 to 3-n are stored in the container 1, these networks may be formed immediately.

  FIG. 9 shows a network configuration formed between the communication terminal 2a and the communication terminals 2b-1 to 2b-n provided in the cargoes 3-1 to 3-n stored in the container 1. . As shown in FIG. 9, for example, a mesh-type network is formed between the communication terminal 2a and the communication terminals 2b-1 to 2b-n.

  Here, the communication terminal 2a and the communication terminals 2b-1 to 2b-n each provided with the Zigbee communication unit 43 are classified into three types of terminals in terms of network formation. The first is called a Zigbee Coordinator (ZC), which is a terminal that exists in the network and controls the network. The second is called a Zigbee Router (ZR) and is a terminal having a data relay function. The third is called a Zigbee End Device (ZED) and is a terminal that does not have a data relay function. The communication terminals 2 classified into these three types form a mesh type network according to a predetermined connection procedure. That is, first, a ZC terminal issues an NLME-NETWORK-FORMATION to construct a PAN (Personal Area Network). Second, the ZC terminal issues an NLME-PERMIT-JOINING to set the Association Permit = TRUE state and accepts the participation of other terminals. Third, a ZR terminal or ZED terminal issues NLME-NETWORK-DISCOVERY and searches for a PAN with Association Permit = TRUE. Fourth, a ZR terminal or a ZED terminal issues an NLME-JOIN to the searched PAN and participates in the PAN. Fifth, when the ZR terminal accepts the participation of another terminal, it issues NLME-START-ROUTER and operates the relay function. Thereby, for example, a mesh-type network is formed between the communication terminal 2a and the communication terminals 2b-1 to 2b-n. Even if the communication terminals 2 cannot communicate directly with each other in the container 1, the other communication terminals 2 It becomes possible to communicate via.

  With reference to the flowchart of FIG. 10, an identification information acquisition process regarding the communication terminals 2b-1 to 2b-n in the container 1 in the communication terminal 2a provided outside the container 1 will be described.

  In step S1, the control unit 38 of the communication terminal 2a forms, for example, a mesh-type network between the communication terminal 2a and the communication terminals 2b-1 to 2b-n, and then passes the Zigbee communication unit 43 through the Zigbee. The identification information of the other communication terminals 2b-1 to 2b-n existing on the network is sequentially acquired. In step S2, the control unit 38 of the communication terminal 2a stores the identification information of the other communication terminals 2b-1 to 2b-n acquired sequentially in the storage unit 39 in association with each other.

  FIG. 11 shows a configuration example of the identification information table stored in the storage unit 39. As shown in FIG. 11, an identification number (such as “101” or “102”) that identifies other communication terminals 2b-1 to 2b-n existing on the Zigbee network formed with the communication terminal 2a. ) Is stored in association with the presence location (in the container 1 in which the communication terminal 2a is provided) in the container 1.

  In step S3, the control unit 38 uses the clock circuit 40 to acquire the identification information of the other communication terminals 2b-1 to 2b-n existing on the Zigbee network, and then sets a predetermined predetermined value. It is determined whether or not a time (for example, 10 minutes) has elapsed, and waits until it is determined that a predetermined time (for example, 10 minutes) has been set. If the control unit 38 determines in step S3 that a predetermined time has elapsed, the control unit 38 again returns to another communication existing on the Zigbee network via the Zigbee communication unit 43 in step S4. The identification information of the terminals 2b-1 to 2b-n is acquired sequentially. In step S5, the control unit 38 of the communication terminal 2a updates (stores) the storage unit 39 in association with the identification information of the other communication terminals 2b-1 to 2b-n acquired sequentially.

  However, after the cargos 3-1 to 3-n are temporarily stored in the container 1, the cargos 3-1 to 3-n are unloaded from the container 1 to the container 1 at the destination B. When some of the stored cargos 3-1 to 3-n are carried out of the container 1 for some reason, the communication terminals 2b (communication terminals 2b-1 to 2b-1 to 2) provided on some of the cargos 3 carried out 2b-n) leaves the Zigbee network. In such a case, since the communication terminal 2b provided in the cargo 3 that has left the Zigbee network does not exist on the Zigbee network, the identification information of the communication terminal 2b is not acquired. Specifically, when the cargo 3-4 to which the communication terminal 2b-4 is attached leaves the container 1 for some reason, the identification number “104” of the communication terminal 2b-4 is not acquired in the identification information acquisition process. The identification information table stored in the storage unit 39 is updated as shown in FIG.

  In step S6, the control unit 38 determines whether or not to end the acquisition of the identification information of the other communication terminals 2b-1 to 2b-n existing on the Zigbee network. Specifically, for example, when the container 1 provided with the communication terminal 2a arrives at the destination B, the communication terminal 2a is operated, and the other communication terminals 2b-1 to 2b- existing on the Zigbee network are operated. When an instruction to end acquisition of n identification information is given, it is determined to end acquisition of identification information of other communication terminals 2b-1 to 2b-n existing on the Zigbee network. Of course, when the communication terminal 2a is removed from the container 1, it may be determined that the acquisition of the identification information of the other communication terminals 2b-1 to 2b-n existing on the Zigbee network is finished.

  When the control unit 38 determines in step S6 that the acquisition of the identification information of the other communication terminals 2b-1 to 2b-n existing on the Zigbee network is not completed, the process returns to step S3, and the steps after step S3 are performed. The process is executed repeatedly. Thereby, the identification information of the communication terminals 2b-1 to 2b-n in the container 1 is acquired at predetermined time intervals set in advance, and the identification information table stored in the storage unit 39 is updated.

  On the other hand, when the control unit 38 determines in step S6 that the acquisition of the identification information of the other communication terminals 2b-1 to 2b-n existing on the Zigbee network ends, the identification information acquisition process ends.

  Next, with reference to the flowchart of FIG. 13, the position information transmission process in the communication terminal 2a provided outside the container 1 will be described. The position information transmission process in the communication terminal 2a is started immediately after the communication terminal 2a is attached to the container 1.

  In step S21, the control unit 38 uses the clock circuit 40 to determine whether or not a predetermined time (for example, 1 hour) set in advance has elapsed since the position information transmission process was completed most recently. The process waits until it is determined that a predetermined time has passed since the position information transmission process was completed recently. The timer determination process uses the clock circuit 40. However, the present invention is not limited to such a case. For example, it may be determined whether a predetermined time has elapsed by a soft timer. The predetermined time may be, for example, 10 minutes or 30 minutes, but if the predetermined time is shortened, the current position of the communication terminal 2a can be traced in detail, but the power consumption in the communication terminal 2 increases accordingly. End up. Therefore, it is desirable to set the predetermined time to such an extent that the current position of the communication terminal 2a can be accurately grasped while suppressing an increase in power consumption to some extent.

  When the control unit 38 determines in step S21 that a predetermined time has passed since the position information transmission process was completed most recently, the control unit 38 activates the GPS reception unit 41 in step S22. , Reception of GPS waves (GPS information) from the GPS satellites 12-1 to 12-4 is started. The GPS receiver 41 receives GPS waves (GPS information) from the GPS satellites 12-1 to 12-4 via the GPS antenna 42 under the control of the controller 38. This GPS information includes, for example, transmission time information from the respective GPS satellites 12-1 to 12-4. Thereafter, the GPS information is input to the control unit 38.

  In the embodiment of the present invention, the position information based on the GPS positioning related to the communication terminal 2a is periodically acquired using a timer. However, the present invention is not limited to such a case. For example, according to a command from the server 16 Position information based on GPS positioning may be acquired.

  In step S23, the control unit 38 calculates position information (latitude and longitude information) indicating the current location of the communication terminal 2a using the acquired GPS information, and GPS positioning which is position information indicating the current location of the communication terminal 2a. Find location information based on. The position information based on the GPS positioning includes information on longitude and latitude such as “E122.23.98-N34.32.23 34”. Note that the position information based on GPS positioning acquired in the communication terminal 2a substantially matches the position information based on GPS positioning acquired in the communication terminals 2b-1 to 2b-n in the container 1.

  In step S24, the control unit 38 determines whether the positioning accuracy of the position information based on the acquired GPS positioning is valid, that is, whether the position information based on the GPS positioning is acquired with a high positioning accuracy. judge. For example, when the positioning accuracy based on GPS positioning is the lowest level 1 among levels 1 to 3, it is not desirable to use it as position information indicating the current position of the communication terminal 2a. It is determined that the positioning accuracy of information is not effective.

  When the control unit 38 determines in step S24 that the positioning accuracy of the position information based on the GPS positioning is valid, the control unit 38 reads the latest history learning data stored in the storage unit 39. In the history learning data, records relating to routes generated when the communication terminal 2 determines the roaming network 14-x using position information based on GPS positioning are sequentially registered.

  Here, in the embodiment of the present invention, a record relating to a route generated by each communication terminal 2 or history learning data updated using the record is appropriately selected during the location information transmission process. In addition to being transmitted to the server 16, the server 16 merges (integrates) the records (history learning data) from the respective communication terminals 2 so as to be managed as a single piece of history learning data. Then, when the data set is transmitted from the server 16 to each communication terminal 2, the latest history learning data that is centrally managed by the server 16 is included in a part of this data set, and each communication terminal 2. To send to. Thereby, it can synchronize with each history learning data managed in each communication terminal 2, and can share a record about a new route generated in each communication terminal 2 via the server 16. . Of course, the history learning data may be managed for each communication terminal 2 without being limited to such a case.

  FIG. 14 shows an example of the data structure of the history learning data stored in the storage unit 39. As shown in FIG. 14, in the history learning data, a route through which the communication terminal 2 a has passed in the past is registered as a record (record), for example, in the form of a table. Specifically, the history learning data in FIG. 14 includes the record number, route NO, route ID, operator, position, traveling direction, positioning time zone, adjacent route ID, number of learning, and other data present on the Zigbee network. Identification information of communication terminals 2 (communication terminals 2b-1 to 2b-n) is registered in association with each other. The history learning data is managed in a plurality of table formats in the storage unit 39. Of the history learning data shown in FIG. 14, the current position of the communication terminal 2 is “E122.23.98-N34.32.23”. 34 ”is the data structure of history learning data.

  For example, in the case of the first line, the record number is “0001”, and the record number that records the route that the communication terminal 2 has passed in the past is “0001”. The route NO is “9898”, which indicates that the route NO selected by the departure point and the destination when the communication terminal 2a moves is “9898”. The route ID is “2222”, and the route ID of the movement route selected in a short distance when the communication terminal 2 moves is “2222”. The operator is “A”, and the selected business operator is “business operator A”. The position is “E122.23.98-N34.32.23 34”, which indicates that the current position of the communication terminal 2a measured using the GPS receiver 41 is “E122.23.98-N34.32.23 34”. . The traveling direction is “35”, which indicates that the traveling direction of the communication terminal 2a is the traveling direction indicated by “direction 35”. The positioning time zone is “12”, which indicates that the time zone measured using the GPS receiver 41 is “12:00:00 to 12:59:59”. The adjacent route ID is “1111”, which indicates that the route ID adjacent to this moving route indicated by the route ID “2222” is “1111”. The number of learning is “3”, and the current position of the communication terminal 2a is calculated in the past using the GPS receiving unit 41. As a result, the same calculation result is obtained, and the number of times this record is used is “3”. It is shown that. The identification information of the other communication terminals 2 (communication terminals 2b-1 to 2b-n) existing on the Zigbee network is “identification information group 1”, and the identification information of the other communication terminals 2 is “identification information group 1”. "Is included in the identification information. The same applies to the second and subsequent rows.

  In step S26, the control unit 38 selects an operator to be used for wireless connection in consideration of communication stability, communication cost, and the like based on the read history learning data, region-specific operator information, region information, and the like. , One of the roaming networks 14-x is determined from the roaming network group 14. In step S <b> 27, the control unit 38 controls the mobile phone wireless communication unit and wirelessly connects to the determined roaming network 14-x via the antenna 31 via the base station 13. At this time, the wireless connection is performed by the communication method according to the determined roaming network 14-x. If the electric field strength in the area is weak and a wireless connection to the roaming network 14-x cannot be established, the connection process may be retried for a predetermined number of times (for example, a few times). Good.

  In step S28, the control unit 38 reads the latest identification information table (for example, the identification information table in FIGS. 11 and 12) stored in the storage unit 39. This identification information table includes identification information of the latest communication terminals 2b (communication terminals 2b-1 to 2b-n) existing on the Zigbee network formed with the communication terminal 2a. In step S29, when the wireless connection with the determined roaming network 14-x is established, the control unit 38 controls the mobile phone wireless communication unit, and identifies an identification information group (identification based on the read identification information table). The position information based on the information group 9) and the acquired GPS positioning is transferred to the server 16 via the roaming network 14-x, the network 15, etc. together with other newly generated data such as record numbers (or history learning data). Send it. The “identification information group 9” transmitted to the server 16 is added with the identification number “5” of the communication terminal 2a provided in the container 1 at the head (header), and the communication existing in the container 1 The identification numbers “101” to “X” of the terminals 2b-1 to 2b-n are included (see FIG. 15).

  As a result, the communication terminal 2a provided outside the container 1 stores the identification information of the other communication terminals 2b-1 to 2b-n existing on the Zigbee network formed with the communication terminal 2a. The current position information of the communication terminal 2a can be transmitted to the server 16 via the base station 14. Therefore, for example, when a plurality of cargoes 3-1 to 3-n are stored in the container 1 and transported, communications provided in the cargoes 3-1 to 3-n stored in the container 1 are provided. Even when the electromagnetic waves transmitted from the terminals 2b-1 to 2b-n are shielded by the metal container 1, instead of transmitting the current position information by the communication terminals 2b-1 to 2b-n themselves. At the timing of transmission of the current position information of the communication terminal 2a, the identification information of the communication terminals 2b-1 to 2b-n is obtained through the communication terminal 2a provided outside the container 1 and the current position information of the communication terminal 2a. At the same time, it can be transmitted to the server 16 via the roaming network 14 (base station network). As a result, even in an environment where electromagnetic waves are shielded, such as in the container 1, the positions of the cargoes 3-1 to 3-n in the logistics transaction can be suitably tracked and managed.

  Thereafter, in step S30, the control unit 38 updates the history learning data stored in the storage unit 39 based on the information based on the acquired GPS positioning, the newly assigned record number, and the like. For example, the history learning data in FIG. 14 is updated as shown in FIG. In the ninth line in the case of FIG. 15, the record number “0009”, route NO “9899”, route ID “1115”, operator “A”, position “E122.23.98-N34.32.23 34”, travel direction “16” ”, Positioning time zone“ 15 ”, adjacent route ID“ 1111 ”, learning number“ 1 ”, and identification information“ identification information group 9 ”of other communication terminals 2 existing on the Zigbee network are registered in association with each other. Is done.

  In the “identification information group 9”, the identification number “5” of the communication terminal 2a provided in the container 1 is added to the head (header), and the communication terminals 2b-1 to 2b-n existing in the container 1 Identification numbers “101” to “X” are included.

  Thereafter, the process proceeds to step S21, and the processes after step S21 are repeatedly executed, position information based on GPS positioning is acquired at predetermined time intervals set in advance, position information based on the acquired GPS positioning, and the like. The roaming network 14-x is determined and the wireless connection by the determined roaming network 14-x is performed, and the position information based on the GPS positioning is transmitted to the server 16 together with the identification information group based on the identification information table. Is done.

  On the other hand, when the control unit 38 determines in step S24 that the positioning accuracy of the position information based on the GPS positioning is not effective, the control unit 38 determines in step S31 a predetermined number of times (for example, two or three times). ) It is determined whether or not the position information acquisition process has been retried. When the control unit 18 determines in step S31 that the position information acquisition process has not been retried for a predetermined number of times (for example, two or three times) set in advance, the process returns to step S22, and after step S22. The position information acquisition process is repeatedly executed until the position information acquisition process is retried for a predetermined number of times (for example, two or three times).

  When the control unit 18 determines in step S31 that a predetermined number of preset times (for example, 2 or 3 times) has been retried, the control unit 38 performs GPS in that area in step S32. It recognizes that the situation of radio waves from the satellites 12-1 to 12-4 is bad and cannot acquire position information based on GPS positioning accurately, and performs error processing. In addition, you may make it perform an acquisition process repeatedly until the positional information based on GPS positioning is acquired effectively, without restricting to the predetermined number of times set beforehand. Thereafter, the process returns to step S21.

  It should be noted that data (or history learning data) such as position information based on GPS positioning acquired as appropriate in the communication terminal 2a and newly generated record numbers of other records are stored in the container 1 via the Zigbee network. The history learning data may be transmitted to the communication terminals 2b-1 to 2b-n, and the history learning data may be updated based on the information in the communication terminals 2b-1 to 2b-n. Thereby, when the electromagnetic wave sent out from the communication terminals 2b-1 to 2b-n provided in the cargoes 3-1 to 3-n stored in the container 1 is shielded by the metal container 1 Even so, the current location information can be obtained indirectly via the communication terminal 2a provided outside the container 1, and history learning is continuously performed at the communication terminals 2b-1 to 2b-n. Data can be updated. Therefore, even in an environment where electromagnetic waves are shielded, such as in the container 1, the positions of the cargoes 3-1 to 3-n in the logistics transaction can be tracked and managed more suitably.

  Further, when the cargos 3-1 to 3-n are stored in the container 1, only the GPS positioning by the GPS receiver 41 is performed at the communication terminals 2b-1 to 2b-n provided in the cargoes 3-1 to 3-n. In addition, wireless communication by the mobile phone wireless communication unit becomes difficult, and even if GPS positioning by the GPS receiving unit 41 is performed, wasteful power is consumed, so the cargoes 3-1 to 3-n are stored in the container 1. After that, the operations of the GPS receiver 41 and the mobile phone wireless communication unit may be temporarily stopped in the communication terminals 2b-1 to 2b-n. Furthermore, after the cargos 3-1 to 3-n are temporarily stored in the container 1, until the cargos 3-1 to 3-n are unloaded at the destination B to the outside of the container 1, When some of the stored cargos 3-1 to 3-n are carried out of the container 1 for some reason, the communication terminals 2b (communication terminals 2b-1 to 2b-1 to 2) provided on some of the cargos 3 carried out 2b-n) leaves the Zigbee network, but after that, the communication terminal 2b provided on the cargo 3 carried out of the container 1 is temporarily stopped by the GPS receiver 41 or the mobile phone wireless communication. The operation by the unit may be resumed, and the current position information or the like may be transmitted to the server 16 by itself. Thereby, the position of the cargo 3 leaving the container 1 can be tracked and managed more suitably.

  Since the container 1 is also provided with the communication terminal 1 and the current position information of the container 1 is transmitted, the container 1 itself can be considered as cargo. Therefore, in the embodiment of the present invention, the cargoes 3-1 to 3-n stored in the container 1 are defined as “first cargo”, and the container 1 is defined as “second cargo”.

  In the embodiment of the present invention, it is assumed that the cargos 3-1 to 3-n are stored in the container 1. However, the present invention is not limited to this, and the cargos 3-1 to 3-n are provided. The present invention can be applied in an environment where electromagnetic waves transmitted from the communication terminals 2b-1 to 2b-n are shielded.

  Incidentally, when wireless communication is performed by the Zigbee communication unit 43 between the communication terminal 2 a provided outside the container 1 and the communication terminals 2 b-1 to 2 b-n in the container 1, the communication terminal 2 a and the communication terminal 2 a are blocked by the container 1. Wireless communication may not work well. Therefore, in order to avoid such a problem, as shown in FIG. 16, the antenna 44 of the Zigbee communication unit 43 of the communication terminal 2 a provided outside the container 1 is connected to the inside of the container 1 from the opening P provided in the container 1. You may make it insert in. On the contrary, as shown in FIG. 17, the communication terminal 2 a itself is stored inside the container 1, and the antenna 31 of the mobile phone wireless communication unit of the communication terminal 2 a is connected to the container 1 from the opening P provided in the container 1. You may make it protrude outside.

  The series of processes described in the embodiments of the present invention can be executed by software, but can also be executed by hardware.

  In the embodiment of the present invention, the steps of the flowchart show an example of processing that is performed in time series in the order described, but parallel or individual execution is not necessarily performed in time series. The processing to be performed is also included.

The figure which shows the mode of the some cargo stored in the container in the case of transporting, after a plurality of cargo is stored in the container. The figure which shows a mode that the electromagnetic wave sent out from the cargo stored in the inside of a container is shielded with a metal container. Explanatory drawing explaining the network which concerns on this invention formed between each communication terminal in a container, and the communication terminal outside a container. 1 is a diagram showing an overall configuration of a network system to which the present invention is applied. The block diagram which shows the internal structure of the communication terminal which concerns on this invention. The block diagram which shows the internal structure of the Zigbee communication part of FIG. The figure which shows the movement path | route of a communication terminal. A correspondence table of identification numbers assigned in advance to each communication terminal. The figure which shows the structure of the network formed between the communication terminal and the communication terminal provided in the cargo stored in the container. The flowchart explaining the identification information acquisition process in the communication terminal provided in the exterior of the container. The figure which shows the structural example of the identification information table memorize | stored in the memory | storage part of the communication terminal of FIG. The figure which shows the structural example of the identification information table memorize | stored in the memory | storage part of the communication terminal of FIG. The flowchart explaining the positional information transmission process in the communication terminal provided in the exterior of the container. The figure which shows an example of the data structure of the history learning data memorize | stored in the memory | storage part of the communication terminal of FIG. The figure which shows an example of the data structure of the history learning data memorize | stored in the memory | storage part of the communication terminal of FIG. The figure which shows a mode that the antenna of the Zigbee communication part of the communication terminal provided in the exterior of the container is inserted into the inside of the container from the opening provided in the container. The figure which shows a mode that the antenna of the mobile telephone radio | wireless communication part of the communication terminal provided in the inside of a container protrudes outside the container from the opening provided in the container.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Container, 2 (2a and 2b-1 thru | or 2b-n) ... Communication terminal, 3 (3-1 thru | or 3-n) ... Cargo, 11 ... Network system, 12 (12-1 thru | or 12-4) ... GPS Satellite, 13 (13-1 to 13-n) ... base station, 14 ... roaming network group, 15 ... network, 16 ... server, 31 ... antenna, 32 ... antenna duplexer (DUP), 33 ... receiving circuit (RX) 34 ... Frequency synthesizer (SYN), 35 ... Transmission circuit (TX), 36 ... Signal processing unit, 37 ... Compression / decompression processing unit, 38 ... Control unit, 39 ... Storage unit, 40 ... Clock circuit, 41 ... GPS reception unit 42 ... GPS antenna, 43 ... Zigbee communication unit, 44 ... antenna, 45 ... acceleration sensor, 46 ... impact sensor, 47 ... gyro sensor, 48 ... battery, 49 ... power supply circuit, 51 ... F circuit portion, 52 ... O-QPSK modem circuit unit, 53 ... MAC circuit, 54 ... clock synchronization circuit.

Claims (10)

Position information acquisition means for acquiring position information of a second cargo in which one or more first cargos are stored;
Mobile wireless communication means for wireless communication with a base station which is a fixed wireless station ;
A parent Zigbee communication means for forming a Zigbee network using Zigbee and communicating with one or a plurality of child Zigbee communication means provided respectively in one or a plurality of the first cargos;
Identification information for identifying said first cargo, and identification information acquisition means for acquiring via the parent Zigbee communication means from the child Zigbee communication means,
At least the position information and the identification information acquired by the identification information acquisition means are transmitted via the mobile radio communication means to an information management apparatus that manages the position information acquired by the position information acquisition means. A transmission means,
The parent Zigbee communication means and the child Zigbee communication means are classified into three types on the Zigbee network,
One first Zigbee communication means exists in the Zigbee network, controls the network,
The second Zigbee communication means has a data relay function of the identification information transmitted from the other Zigbee communication means,
The third Zigbee communication means has only a function of transmitting the identification information to other Zigbee communication means,
The parent Zigbee communication means forms the Zigbee network according to a predetermined connection procedure as the first Zigbee communication means,
The child Zigbee communication means joins the Zigbee network as the second or third Zigbee communication means, and directly or indirectly relays the other child Zigbee communication means to transmit the identification information to the parent Zigbee communication means. A communication terminal characterized by transmitting to. 2. The communication terminal according to claim 1, wherein the identification information acquisition unit acquires the identification information via the parent Zigbee communication unit every predetermined time set in advance. The identification information, communication terminal according to claim 1, characterized in that the identification number or identification code identifying at least the child Zigbee communication means. The position information acquired by the positional information acquiring unit, the communication terminal according to claim 1, characterized in that to be supplied to one or more of the child Zigbee communication means via said Zigbee network.   The communication terminal according to claim 1, wherein the position information is position information based on GPS positioning or base station information. Wherein the communication terminal is provided outside of the second cargo, the parent Zigbee some or all of the antenna used to communicate with one or more of the child Zigbee communication means the communication means, the second cargo The communication terminal according to claim 1, wherein the communication terminal is inserted into the second cargo from an opening provided in the second cargo. The communication terminal is provided inside the second cargo, and a part or all of an antenna used when wirelessly communicating with the base station by the mobile wireless communication means is an opening provided in the second cargo. The communication terminal according to claim 1, wherein the communication terminal protrudes outside the second cargo. A communication terminal provided in the first cargo,
A child Zigbee communication means that forms a Zigbee network using Zigbee and communicates with a parent Zigbee communication means provided in the second cargo in which the first cargo is stored;
Storage means for storing identification information for identifying the first cargo;
The identification information stored in the storage means is passed through the child Zigbee communication means to the parent Zigbee communication means existing on the Zigbee network or another child Zigbee communication means provided in another first cargo. and a supply means for supplying Te,
The parent Zigbee communication means and the child Zigbee communication means are classified into three types on the Zigbee network,
One first Zigbee communication means exists in the Zigbee network, controls the network,
The second Zigbee communication means has a data relay function of the identification information transmitted from the other Zigbee communication means,
The third Zigbee communication means has only a function of transmitting the identification information to other Zigbee communication means,
The parent Zigbee communication means forms the Zigbee network according to a predetermined connection procedure as the first Zigbee communication means,
The child Zigbee communication means joins the Zigbee network as the second or third Zigbee communication means, and directly or indirectly relays the other child Zigbee communication means to transmit the identification information to the parent Zigbee communication means. communication terminal characterized that you send to. In a communication processing system comprising a first communication terminal provided in one or a plurality of first cargoes and a second communication terminal provided in a second cargo in which the first cargo is stored,
Each of the first communication terminals is
A child Zigbee communication means for communicating by forming a Zigbee network using Zigbee between the other first communication terminal and the second communication terminal;
Storage means for storing identification information for identifying the first cargo provided with the first terminal;
Supply means for supplying the identification information stored in the storage means to the second communication terminal or another first communication terminal existing on the Zigbee network via the child Zigbee communication means; With
The second communication terminal is
Position information acquisition means for acquiring position information of the second cargo ;
Mobile radio communication means for radio communication with a base station which is a fixed radio station ;
A parent Zigbee communication means for forming the Zigbee network and communicating with the child Zigbee communication means ;
Supplied by said supply means, said the identification information stored in the first communication terminal is stored, the first identification information acquisition means from the communication terminal to get through the parent Zigbee communication means present on the Zigbee network When,
At least the position information and the identification information acquired by the identification information acquisition means are transmitted via the mobile radio communication means to an information management apparatus that manages the position information acquired by the position information acquisition means. A transmission means,
The parent Zigbee communication means and the child Zigbee communication means are classified into three types on the Zigbee network,
One first Zigbee communication means exists in the Zigbee network, controls the network,
The second Zigbee communication means has a data relay function of the identification information transmitted from the other Zigbee communication means,
The third Zigbee communication means has only a function of transmitting the identification information to other Zigbee communication means,
The parent Zigbee communication means forms the Zigbee network according to a predetermined connection procedure as the first Zigbee communication means,
The child Zigbee communication means joins the Zigbee network as the second or third Zigbee communication means, and directly or indirectly relays the other child Zigbee communication means to transmit the identification information to the parent Zigbee communication means. The communication processing system characterized by transmitting to. In a communication processing method of a communication processing system comprising a first communication terminal provided in one or a plurality of first cargoes and a second communication terminal provided in a second cargo in which the first cargo is stored. ,
Each of the first communication terminals is
The other first communication terminal and the second communication terminal communicate with each other by forming a Zigbee network using Zigbee ,
Storing identification information for identifying the first cargo provided with the first communication terminal;
Said second communication terminals existing on the Zigbee network, the identification information stored, and supplied via the Zigbee network,
The second communication terminal is
Obtaining location information of the second cargo ,
Wireless communication with a base station that is a fixed wireless station ,
Communicate to form the Zigbee network between the first communication terminal,
The supplied by the supply means, the identification information of the first communication terminal stores existing on the Zigbee network, obtained from the first communication terminal,
Sending at least the location information and the identification information to the information management device that manages the obtained location information via a base station ,
The first communication terminal and the second communication terminal are classified into three types on the Zigbee network,
One first Zigbee communication means exists in the Zigbee network, controls the network,
The second Zigbee communication means has a data relay function of the identification information transmitted from the other Zigbee communication means,
The third Zigbee communication means has only a function of transmitting the identification information to other Zigbee communication means,
The second communication terminal forms the Zigbee network according to a predetermined connection procedure as the first Zigbee communication means,
The first communication terminal participates in the Zigbee network as the second or third Zigbee communication means, and relays the identification information directly or indirectly through the other first communication terminal. A communication processing method characterized by transmitting to the communication terminal .

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