Patent Publication Number: US-2010127867-A1

Title: Container transportation monitoring system

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a container transportation monitoring system and, more particularly, to a container transportation monitoring system which can monitor the loading process, the transportation process and the suspending process of a container. 
     2. Description of Related Art 
     During the transportation process of a container, the container crane plays an important role, since it suspends the container between the container ship and the trailer carrying the container. Due to human error or some other factors, error in the suspending process and the resulting mis-delivery of the container happens from time to time. This error can only be found when the container is opened at the recipient&#39;s location. As a result, lots of time, resources and human power is wasted due to the error in the suspending process. 
     Moreover, it is reported that some containers are seriously damaged by thieves when stealing the cargo therein during the transportation process or the storing period at the dock. The conventional alarm system of a container can only output an alarm signal for deterrence, it cannot record the incident and report to related agents. Therefore, intentional damage and theft from and of the container still happen occasionally. 
     As a result, a container transportation monitoring system, which can prevent errors occurring during the suspending process of a container, prevent the container from being broken into and actually stolen completely, and monitor the condition and position of the container is required in the industry. 
     SUMMARY OF THE INVENTION 
     The object of the present invention is to provide a container transportation monitoring system which can prevent errors occurring during the suspending process of a container, prevent the container from being broken into and stolen completely, and monitor the condition and position of the container. 
     The container transportation monitoring system comprises a wireless transmitting module, a wireless receiving module, and a monitoring center. The wireless transmitting module is located on a container and includes a memory unit, a first processing unit, and a wireless transmitting unit. The first processing unit is electrically connected with the memory unit, and the wireless transmitting unit, wherein the first processing unit can read out container information from the memory unit, write in the container information to the memory unit, or transmit the container information by the wireless transmitting unit. The memory unit of the present invention can be one of the read-write non-volatile memory, flash memory, electronic programmable memory, and micro-hard disc. 
     Besides, the wireless receiving module is located on a container crane or a tractor, and includes a wireless receiving unit, a second processing unit, and a monitoring transmitting unit. The second processing unit is electrically connected with the wireless receiving unit, and the monitoring transmitting unit. The second processing unit controls the receiving of the container information of the wireless receiving unit, which is transmitted through the wireless transmitting unit of the wireless transmitting module. The second processing unit transmits the container information through the monitoring transmitting unit. 
     Moreover, the monitoring center includes a monitoring receiving unit, a central processing unit, a database, and a monitoring device, wherein the central processing unit is electrically connected with the monitoring receiving unit, the database, and the monitoring device. At least one item of database container information is stored in the database. When the monitoring receiving unit receives the container information from the monitoring transmitting unit of the wireless receiving module, the central processing unit compares the container information with the at least one item of database container information stored in the database, and outputs the result to the monitoring device. Therefore, by means of the comparison process described above, the suspending process and the transportation process of the container is real-time monitored, and the mis-delivery and or loss of the container can be effectively avoided. 
     The container information may include a serial number of the container, the type of the container, the size of the container, the type of the cargo contained in the container, the quantity of the cargo contained in the container, the shipper&#39;s name and address, the receiver&#39;s name and destination, the terminal harbor or the transit harbor, etc. The container information is used for checking whether the container is mis-delivered, and for recording and monitoring. 
     The database of the monitoring center may further comprise container scheduling information. The central processing unit compares the serial number of the container of the container information with the container scheduling information and outputs the comparing result to the monitoring device. The container scheduling information includes the suspending sequence for the container crane, for checking whether there is any error occurring during the suspending process. 
     More preferably, the wireless transmitting module of the present invention can further comprise a power switch located on the suspension point of the container or in the vicinity thereof. The power switch is used for turning on or turning off the power of the wireless transmitting module. When the container is suspended, the power of the wireless transmitting module is turned on and the container information is transmitted, otherwise the power of the transmitting module is turned off to make the wireless transmitting module be unable to transmit any signal. Therefore, the power for the operation of the wireless transmitting module can be saved, and the possible interference occurring during the receiving process of another container&#39;s information being handled, while another container is being suspended by the container crane. Similarly, when the container is positioned on a trailer, the power switch turns on the power of the wireless transmitting module for transmitting container information to the wireless receiving module located on a tractor. The container information is then transmitted to the monitoring center through the monitoring transmitting unit of the wireless receiving module. Therefore, the transportation process and the current position of the container can both be handled in real-time. 
     The wireless transmitting module of the present invention can further comprise an input unit, for inputting the container information. That is, the container information can be written-in or input through the input unit, and the container information is then written-in and stored in the memory unit. However, an input unit may be a cable connection unit (such as USB port or RS-232 port), a wireless connection unit (such as IR port, Bluetooth port, RF port or any equivalent device) or the equivalent device of both the cable connection unit and the wireless connection unit. 
     The wireless transmitting module of the present invention can further comprise a detecting unit located on the door of the container or in the vicinity thereof. The detecting unit is used for detecting the open/closed status of the door of the container. The detecting unit may be a non-contact type detector, a contact type detector (such as an IR detector) or the equivalent device of both the non-contact type detector and the contact type detector. The wireless transmitting module of the present invention can further comprise an alarm unit. As a result, once the container door is abnormally opened the, the alarm unit outputs an alarm signal. In the present invention, the alarm unit is a buzzer and the alarm signal is an alarm sound effect. 
     The wireless transmitting module of the present invention can further comprise a GPS unit, for calculating the position information of the container. The first processing unit stores the position information in the memory unit. Therefore, the transportation process and the status of the container can be recorded in detail by the GPS unit. Of course, the position information of the container can be transmitted to the monitoring center in real-time, for real-time tracking of the container. 
     The wireless transmitting module of the present invention can further comprise a wireless tire pressure receiving unit, for detecting the status of tire pressure of the plural tires of the trailer carrying the container and of the plural tires of the tractor. Each of these tires is equipped with a tire pressure detector, for transmitting the tire pressure status of these tires to the wireless tire pressure receiving unit by the wireless communication method. 
     The monitoring transmitting unit of the wireless receiving module of the present invention can be a general packet radio service (i.e. the GPRS) receiving unit. The monitoring receiving unit of the monitoring center of the present invention can be a general packet radio service (i.e. the GPRS) receiving unit. Of course, other kinds of wireless transmission method can be used, such as the 3G, the WI-Fi, or the WiMAX. Moreover, cable transmission can also be used, such as fiber optics cable transmission, coaxial cable transmission, or the ethernet cable transmission. The wireless transmitting unit of the present invention can be an RF open band frequency shift keying (i.e. the FSK) transmitting unit. The wireless receiving unit of the present invention can be an RF open band frequency shift keying (i.e. the FSK) receiving unit. 
     Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a system diagram of the container transportation monitoring system according to one embodiment of the present invention. 
         FIG. 2  is a perspective view of the container transportation monitoring system according to one embodiment of the present invention. 
         FIG. 3  is a flowchart of the container transportation monitoring system according to one embodiment of the present invention. 
         FIG. 4  is an incident reporting flowchart of the container transportation monitoring system according to one embodiment of the present invention. 
         FIG. 5  is a system diagram of the container transportation monitoring system according to another embodiment of the present invention. 
         FIG. 6  is a perspective view of the container transportation monitoring system according to another embodiment of the present invention. 
         FIG. 7  is a flowchart of the container transportation monitoring system according to another embodiment of the present invention. 
         FIG. 8  is an incident reporting flowchart of the container transportation monitoring system according to another embodiment of the present invention. 
         FIG. 9  is an incident reporting flowchart of the container transportation monitoring system according to yet another embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     With reference to  FIG. 1 , and  FIG. 2 , wherein  FIG. 1  is a system diagram of the container transportation monitoring system according to one embodiment of the present invention, while  FIG. 2  is a perspective view of the container transportation monitoring system according to one embodiment of the present invention. As shown in the figures, a wireless transmitting module  1  is located on a container  4 . The wireless transmitting module  1  includes a memory unit  11 , a first processing unit  12 , a wireless transmitting unit  13 , an input unit  14 , a first power supply unit  15 , a detecting unit  16 , a power switch  17 , an alarm unit  18 , and a GPS unit  19 , wherein the memory unit  11 , the wireless transmitting unit  13 , the input unit  14 , the first power supply unit  15 , the detecting unit  16 , the power switch  17 , the alarm unit  18 , and the GPS unit  19  are electrically connected with the first processing unit  12 , respectively. The first power supply unit  15  provides the power for the operation of the whole wireless transmitting module  1 . 
     The first processing unit  12  controls the read out process of the container information from the memory unit  11 , or the write in process of the container information to the memory unit  11 . Besides, the container information is transmitted through the wireless transmitting unit  13 . The container information may include a serial number of the container, the type of the container (such as refrigerated container or ordinary container), the size of the container, the type of the cargo contained in the container, the quantity of the cargo contained in the container, the shipper&#39;s name and address, the receiver&#39;s name and destination, the terminal harbor or the transit harbor, etc. Moreover, the container information may be input/written in through the input unit  14 , and then be written in the memory unit  1  by the first processing unit  12 . The input unit  14  may be a cable connection unit (such as USB port or RS-232 port) or a wireless connection unit (such as IR port, Bluetooth port, RF port or any equivalent device). 
     A power switch  17  is also shown in the figures, which is located in the vicinity of the suspension point  41  of the container  4 . When the container crane  51  contacts and engages with the suspension point  41  of the container  4 , the power switch  17  is triggered by the container crane  51  and turns on the power of the wireless transmitting module  1 . Once the container  4  has been moved to a certain position by the container crane  51 , the container crane  51  moves away from the suspension point  41  of the container  4 , the power switch  17  turns off the power of the wireless transmitting module  1 , making the wireless transmitting module  1  unable to transmit any signal. Therefore, the power for the operation can be saved, and possible interference from a second container simultaneously being handled by the container crane  51  can be avoided. 
     Besides, a detecting unit  16  is also shown in the figures, which is located on the door  42  of the container  4  or in the vicinity thereof, for detecting the open/closed status of the door  42  of the container  4 . That is, the detecting unit  16  is used to detect the opening process and the closing process of the container door  42 , and each of the opening process and the closing process is recorded in the memory unit  11 . In the present embodiment, the detecting unit  16  is an IR detecting unit. That is, when the container door  42  is abnormally opened or opened unexpectedly, the light source of the IR detecting unit is blocked, resulting in an abnormal signal which is then transmitted to the first processing unit  12 . The first processing unit  12  then writes in the abnormal signal in the memory unit  11 , and controls the alarm unit  1   8  to output an alarm signal to notify related agents and to sound an alarm for deterrence. In the present embodiment, the alarm unit  18  is a buzzer and the alarm signal is an alarm sound effect. 
     Moreover, the wireless transmitting module  1  of the present embodiment further comprises a GPS unit  19 , for calculating the position information of the container  4 . The first processing unit  12  then stores the position information in the memory unit  11 . Therefore, the transportation process, the transportation path and the status of the container  4  can be recorded in detail. Of course, the position information of the container  4  can be transmitted to the monitoring center  3  in real-time, for real-time tracking of the container  4 . In the present embodiment, the wireless transmitting unit  13  is an RF open band frequency shift keying (i.e. the FSK) transmitting unit. 
     With reference to  FIG. 1 , and  FIG. 2  again, a wireless receiving module  2  is also shown in the figures. The wireless receiving module  2  is located on the container crane  51  and comprises a wireless receiving unit  21 , a second processing unit  22 , a monitoring transmitting unit  23 , and a second power supply unit  24 . The second processing unit  22  is electrically connected with the wireless receiving unit  21 , the monitoring transmitting unit  23 , and the second power supply unit  24 , respectively. The operation flow is as described below: the second processing unit  22  controls the receiving of the container information of the wireless receiving unit  21 , which is transmitted through the wireless transmitting unit  13  of the wireless transmitting module  1 , and transmits the container information through the monitoring transmitting unit  23 . The second power supply unit  24  provides the power for the operation of the whole wireless receiving module  2 . In the present embodiment, the wireless receiving unit  21  is an RF open band frequency shift keying (i.e. the FSK) receiving unit. The monitoring transmitting unit  23  is a general packet radio service (i.e. the GPRS) transmitting unit. 
     Besides, the monitoring center  3  includes a monitoring receiving unit  31 , a central processing unit  32 , a database  33 , a monitoring device  34 , and a power supply module  35 . The central processing unit  32  is electrically connected with the monitoring receiving unit  31 , the database  33 , the monitoring device  34 , and the power supply module  35 . Moreover, at least one item of database container information is stored in the database  33 . When the monitoring receiving unit  31  receives the container information from the monitoring transmitting unit  23  of the wireless receiving module  2 , the central processing unit  32  compares the container information with the at least one item of database container information stored in the database  33 , and outputs the result to the monitoring device  34 . 
     The database  33  can further store container scheduling information  331 . The central processing unit  32  compares the serial number of the container of the container information with the container scheduling information  331 , and then outputs the comparing result to the monitoring device  34 . The container scheduling information  331  mainly includes the suspending sequence for the container crane  51 , for checking whether there is any error occurring during the suspending process. In the present embodiment, the monitoring receiving unit  31  is a general packet radio service (i.e. the GPRS) receiving unit, which is employed in the long distance transmission. However, in the present invention, the transmission of the container information is not limited to wireless transmission and the container information can also be transmitted by cable transmission, such as fiber optics cable transmission, coaxial cable transmission, or the ethernet cable transmission. 
     With reference to  FIG. 3 , which is a flowchart of the container transportation monitoring system according to one embodiment of the present invention, the operation flow of the present embodiment is described below: 
     When the container crane  51  contacts the container  4  and is ready for suspending the container  4 , the power switch  17  is triggered by the container crane  51  (Step S 305 ). At this time, the power of the wireless transmitting module  1  is turned on. The first processing unit  12  controls the wireless transmitting unit  13  to start the transmission of the container information (Step S 310 ). The wireless receiving unit  21  of the wireless receiving module  2  located on the container crane  51  starts to receive the container information (Step S 315 ). Besides, the second processing unit  22  also controls the monitoring transmitting unit  23  to transmit the container information (Step S 320 ). At the time, the monitoring center  3  at a remote spot receives the container information through the monitoring receiving unit  31  (Step S 325 ). The container information is then compared and the comparing result is recorded (Step S 330 ). 
     With reference to  FIG. 4 , which is an incident reporting flowchart of the container transportation monitoring system according to one embodiment of the present invention, the operation flow of the incident reporting process is described below: 
     During the transportation process and the storage of the container  4 , once the container door  42  is abnormally opened or opened unexpectedly, the detecting unit  16  located on the container  4  will detect the happening of this incident, whereby the first processing unit  12  then records the time, and the position of this incident and outputs an alarm sound effect (Step S 405 ). Once the container  4  is suspended by the container crane  51  (Step S 410 ), the wireless transmitting module  1 , which is triggered and turned on, outputs an abnormal signal (Step S 415 ). The wireless receiving unit  21  of the wireless receiving module  2  located on the container crane  51  receives the abnormal signal (Step S 420 ). Moreover, the second processing unit  22  also controls the monitoring transmitting unit  23  to transmit the abnormal signal (Step S 425 ). At the time, the monitoring center  3  at a remote spot receives the abnormal signal through the monitoring receiving unit  31  (Step S 430 ). The abnormal signal is recorded and displayed by the monitoring device  34 , for reporting and alarming (Step S 435 ). 
     With reference to  FIG. 5 , and  FIG. 6 , wherein  FIG. 5  is a system diagram of the container transportation monitoring system according to the other embodiment of the present invention, while  FIG. 6  is a perspective view of the container transportation monitoring system according to another embodiment of the present invention. As shown in the figures, a wireless transmitting module  6  is located on a container  4 . The wireless transmitting module  6  includes a memory unit  61 , a first processing unit  62 , a wireless transmitting unit  63 , an input unit  64 , a first power supply unit  65 , a detecting unit  66 , a power switch  67 , an alarm unit  68 , a GPS unit  69 , and a wireless tire pressure receiving unit  70 , wherein the memory unit  61 , the wireless transmitting unit  63 , the input unit  64 , the first power supply unit  65 , the detecting unit  66 , the power switch  67 , the alarm unit  68 , the GPS unit  69 , and the wireless tire pressure receiving unit  70  are electrically connected with the first processing unit  62 , respectively. The first power supply unit  65  provides the power for the operation of the whole wireless transmitting module  6 . 
     The first processing unit  62  controls the read out process of the container information from the memory unit  61 , or the write in process of the container information to the memory unit  61 . Besides, the container information is transmitted through the wireless transmitting unit  63 . The container information may include a serial number of the container, the type of the container (such as a refrigerated container or ordinary container), the size of the container, the type of the cargo contained in the container, the quantity of the cargo contained in the container, the shipper&#39;s name and address, the receiver&#39;s name and destination, the terminal harbor or the transit harbor, etc. Moreover, the container information may be input/written in through the input unit  64 , and then written in the memory unit  61  by the first processing unit  62 . The input unit  64  may be a cable connection unit (such as USB port or RS-232 port) or a wireless connection unit (such as IR port, Bluetooth port, RF port or any equivalent device). 
     A power switch  67  is also shown in the figures, which is located in the vicinity of the fixing part  43  of the container  4 . When the container  4  is suspended by the container crane (not shown in the figure) and located on a trailer  52  the power switch  67  of the wireless transmitting module  6  is contacted by the fixing bolt (not shown in the figure) of the trailer  52 . The power switch  67  is thus triggered, and the power switch  67  turns on the power of the wireless transmitting module  6 . The container information is then transmitted by the wireless transmitting module  6 . After that, the power of the wireless transmitting module  6  is turned on periodically for transmitting the container information, under the control of a control program (not shown in the figures). In some cases, upon the request from a remote control center (not shown in the figure), the power of the wireless transmitting module  6  is turned on for transmitting the container information. 
     Besides, a detecting unit  66  is also shown in the figures, which is located on the door  42  of the container  4  or in the vicinity thereof, for detecting the open/closed status of the door  42  of the container  4 . That is, the detecting unit  66  is used to detect the opening process and the closing process of the container door  42 , and each of the opening process and the closing process is recorded in the memory unit  61 . In the present embodiment, the detecting unit  66  is an IR detecting unit. That is, when the container door  42  is abnormally opened or opened unexpectedly, the light source of the IR detecting unit is blocked, resulting in an abnormal signal which is then transmitted to the first processing unit  62 . The first processing unit  62  then writes in the abnormal signal in the memory unit  61 , and controls the alarm unit  68  to output an alarm signal to notify related agents and to sound an alarm for deterrence. In the present embodiment, the alarm unit  68  is a buzzer and the alarm signal is an alarm sound effect. 
     Moreover, the wireless transmitting module  6  of the present embodiment further comprises a GPS unit  69 , for calculating the position information of the container  4 . The first processing unit  62  then stores the position information in the memory unit  61 . Therefore, the transportation process, the transportation path and the status of the container  4  can be recorded in detail. Of course, the position information of the container  4  can be transmitted to the monitoring center  8  in real-time, for real-time tracking of the container  4 . In the present embodiment, the wireless transmitting unit  63  is an RF open band frequency shift keying (i.e. the FSK) transmitting unit. 
     Moreover, the wireless transmitting module  6  of the present embodiment can further comprise a wireless tire pressure receiving unit  70 , for detecting the status of tire pressure of the plural tires  521 ,  522  of the trailer  52  carrying the container  4  and the status of tire pressure of the plural tires  531 ,  532  of the tractor  53 . Besides, each of these tires  521 ,  522 ,  531 ,  532  is equipped with a tire pressure detector (i.e. the tire pressure detector  5211 ,  5221 ,  5311 ,  5321 ), for transmitting the tire pressure status of these tires  521 ,  522 ,  531 ,  532  to the wireless tire pressure receiving unit  70 , by the wireless communication method. 
     With reference to  FIG. 5 , and  FIG. 6  again, a wireless receiving module  7  is also shown in the figures. The wireless receiving module  7  is located on a tractor  53  and comprises a wireless receiving unit  71 , a second processing unit  72 , a monitoring transmitting unit  73 , and a second power supply unit  74 . The second processing unit  72  is electrically connected with the wireless receiving unit  71 , the monitoring transmitting unit  73 , and the second power supply unit  74 , respectively. The operation flow is as described below: the second processing unit  72  controls the receiving of the container information ofthe wireless receiving unit  71 , which is transmitted through the wireless transmitting unit  63  of the wireless transmitting module  6 , and transmits the container information through the monitoring transmitting unit  73 . Besides, the second processing unit  72  also transmits tractor information through the monitoring transmitting unit  73 . The second power supply unit  74  provides the power for the operation of the whole wireless receiving module  7 . In the present embodiment, the wireless receiving unit  71  is an RF open band frequency shift keying (i.e. the FSK) receiving unit. The monitoring transmitting unit  73  is a general packet radio service (i.e. the GPRS) transmitting unit. 
     Besides, the monitoring center  8  includes a monitoring receiving unit  81 , a central processing unit  82 , a database  83 , a monitoring device  84 , and a power supply module  85 . The central processing unit  82  is electrically connected with the monitoring receiving unit  81 , the database  83 , the monitoring device  84 , and the power supply module  85 . Moreover, at least one item of database container information and at least one item of database tractor information are stored in the database  83 . When the monitoring receiving unit  81  receives the container information and the tractor information from the monitoring transmitting unit  73  of the wireless receiving module  7 , the central processing unit  82  compares the container information and the tractor information with the at least one item of database container information and the at least one database tractor information stored in the database  83 , respectively. The comparing results are then output to the monitoring device  84 . 
     The database  83  can further store container scheduling information  831 . The central processing unit  82  compares the serial number of the container of the container information with the container scheduling information  831 , and then outputs the comparing result to the monitoring device  84 . The container scheduling information  831  mainly includes the suspending sequence for the container crane (not shown in the figure), for checking whether there is any error occurring during the suspending process. In the present embodiment, the monitoring receiving unit  81  is a general packet radio service (i.e. the GPRS) receiving unit, which is employed in the long distance transmission. However, in the present invention, the transmission of the container information is not limited to wireless transmission, and the container information can also be transmitted by cable transmission, such as fiber optics cable transmission, coaxial cable transmission, or the ethernet cable transmission. 
     With reference to  FIG. 7 , which is a flowchart of the container transportation monitoring system according to another embodiment of the present invention, the operation flow of the present embodiment is described below: 
     When the container  4  is suspended by the container crane (not shown in the figure) and positioned on the trailer  52 , the power switch  67  is triggered with the contact of the fixing bolt (not shown in the figure) of the trailer  52  (Step S 705 ). At this time, the power of the wireless transmitting module  6  is turned on. The first processing unit  62  controls the wireless transmitting unit  63  to start the transmission of the container information (Step S 710 ). The wireless receiving unit  71  ofthe wireless receiving module  7  located on the tractor  53  starts to receive the container information (Step S 715 ). Besides, the second processing unit  72  also controls the monitoring transmitting unit  73  to transmit the container information and the tractor information (Step S 720 ). At the time, the monitoring center  8  at a remote spot receives the container information and the tractor information through the monitoring receiving unit  81  (Step S 725 ). The container information and the tractor information are then compared and the comparing result is recorded (Step S 730 ). 
     With reference to  FIG. 8 , which is an incident reporting flowchart of the container transportation monitoring system according to the another embodiment of the present invention, the operation flow of the incident reporting process is described below: 
     During the transportation process and the storage of the container  4 , once the container door  42  is abnormally opened or opened unexpectedly, the detecting unit  66  located on the container  4  will detect the happening of this incident, the first processing unit  62  then records the time, and the position of this incident and outputs an alarm sound effect (Step S 805 ). Once the container  4  is suspended by the container crane (not shown in the figure) and positioned on a trailer  52  (Step S 810 ), the wireless transmitting module  6 , which is triggered and turned on, outputs an abnormal signal (Step S 815 ). The wireless receiving unit  71  of the wireless receiving module  7  located on the tractor  53  receives the abnormal signal (Step S 820 ). Moreover, the second processing unit  72  also controls the monitoring transmitting unit  73  to transmit the abnormal signal and the tractor information (Step S 825 ). At the time, the monitoring center  8  at a remote spot receives the abnormal signal and the tractor information through the monitoring receiving unit  81  (Step S 830 ). The abnormal signal and the tractor information are recorded and displayed by the monitoring device  84 , for reporting and alarming (Step S 835 ). 
     With reference to  FIG. 9 , which is an incident reporting flowchart of the container transportation monitoring system according to yet another embodiment of the present invention, the operation flow of the incident reporting process is described below: 
     During the transportation process and the storage of the container  4 , once the status of tire pressure of the plural tires  521 ,  522  of the trailer  52  carrying the container  4  or the status of tire pressure of the plural tires  531 ,  532  ofthe tractor  53  is abnormal, the tire pressure detector  5211 ,  5221 ,  5311 ,  5321  of these tires  521 ,  522 ,  531 ,  532  will output an alarm signal to the wireless tire pressure receiving unit  70  of the wireless transmitting module  6  located on the container  4 , while the first processing unit  62 .recording the time, and the position of this incident (Step S 905 ). Then, the wireless transmitting module  6  outputs an abnormal signal (Step S 910 ). The wireless receiving unit  71  ofthe wireless receiving module  7  located on the tractor  53  receives the abnormal signal and displays an alarm signal on the panel of the tractor  53 (Step S 915 ). Moreover, the second processing unit  72  also controls the monitoring transmitting unit  73  to transmit the abnormal signal and the tractor information (Step S 920 ). At the time, the monitoring center  8  at a remote spot receives the abnormal signal and the tractor information through the monitoring receiving unit  81  (Step S 925 ). The abnormal signal and the tractor information are recorded and displayed by the monitoring device  84 , for reporting and alarming (Step S 930 ). 
     Although the present invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the invention as hereinafter claimed.