Summary of the invention
In view of this; The technical matters that the present invention solves provides a kind of car-mounted terminal that is used for the vehicle supervision; Can with simpler safer mode to haulage vehicle truly by way of supervising; Thereby can satisfy customs's requirement that transportation is supervised to bonded goods well, can realize the vehicle of transportation customs bond goods is supervised in overall process.
For this reason, technical scheme provided by the invention is following:
A kind of car-mounted terminal that is used for vehicle supervision comprises: through wireless transmission method and base station or miscellaneous equipment transmit information the Zigbee module, transmit the GPS module, CPU of the interface module of information, vehicle position information that reception GPS transmits and the Tip element of transmission information under the control of CPU through the way of contact and exterior storage medium;
Said CPU is used for:
After receiving download command, from first exterior storage medium, read set path information, and upgrade the state of particular state position;
After inserting first base station, said particular state position is sent to first base station, to report the current state of car-mounted terminal;
After receiving the open command that send first base station, open path comparison function; Upgrade the state of said particular state position; The vehicle position information that beginning receives according to the GPS module is confirmed the travel path of vehicle, and whether the travel path that the travel path and the set path of vehicle are compared with definite vehicle takes place unusually;
Take place at the travel path of vehicle that the control Tip element sends information to the driver when unusual, take place unusual with prompting driver travel path;
And the security module of carrying out authentication is used for:
Utilize corresponding second PKI that the driver is carried out signature verification, with checking driver's identity;
When CPU is received download command, utilize corresponding first public key that the keeper is carried out signature verification, checking is read set path information through the back from exterior storage medium;
When CPU is received upload command, utilize corresponding first public key that the keeper is carried out signature verification, checking through after the travel path of vehicle is write exterior storage medium;
After the driver identification checking is passed through, the 3rd PKI that prestores is passed to second exterior storage medium;
Second exterior storage medium utilizes the 3rd PKI that the information that first base station or second base station send to car-mounted terminal is carried out signature verification.
In certain embodiments, said CPU also is used for:
Take place at the travel path of vehicle that the specific identifier position is set to unusually when unusual;
Whether Turn Off Path comparison function sends to second base station with said particular state position and flag after inserting second base station, take place unusually with the current state that reports car-mounted terminal and the travel path of vehicle.
In certain embodiments, said CPU also is used for:
Travel path with vehicle after receiving upload command writes first exterior storage medium.
In certain embodiments, said car-mounted terminal also comprises the input equipment that supplies operating personnel to import download command and upload command.
Preferably, said input equipment comprises button and touch-screen.
Preferably, said interface module comprises usb interface controller and intelligent card read/write device.
Another object of the present invention provides a kind of car monitoring system, and this system comprises:
The aforesaid car-mounted terminal that is used for the vehicle supervision, said car-mounted terminal is installed on the institutionalized vehicle;
Be arranged on the bayonet socket of garden, form the micro radio network to carry out the base station of radio communication with said car-mounted terminal;
The control desk that links to each other and supply the keeper to carry out control operation with said base station; With
The background monitoring system of relevant information is provided for control desk.
Another object of the present invention provides a kind of vehicle monitoring and managing method, and this method comprises:
Car-mounted terminal reads set path information after receiving download command from first exterior storage medium, and upgrades the state of particular state position;
The bayonet socket place car-mounted terminal that goes out in initial garden sends to first base station with said particular state position;
Control desk through linking to each other with said first base station sends open command;
Said car-mounted terminal is opened path comparison function after receiving said open command; Upgrade the state of said particular state position; Beginning is confirmed the travel path of vehicle according to the vehicle position information that receives, and whether the travel path that the travel path and the set path of vehicle are compared with definite vehicle takes place unusually; Take place at the travel path of vehicle that the control Tip element sends information to the driver when unusual, take place unusual with prompting driver travel path;
Said car-mounted terminal utilizes corresponding first public key that the keeper is carried out signature verification when receiving download command, and checking is read set path information through the back from exterior storage medium;
When receiving upload command, utilize corresponding first public key that the keeper is carried out signature verification, checking through after the travel path of vehicle is write exterior storage medium;
Utilize corresponding second PKI that the driver is carried out signature verification, with checking driver's identity;
Said car-mounted terminal passes to second exterior storage medium with the 3rd PKI that prestores after the driver identification checking is passed through;
When car-mounted terminal transmission information was given the base station, second exterior storage medium utilized second private key to the information of the sending transmission of signing;
Control desk utilizes second PKI that information is carried out signature verification after receiving the information that car-mounted terminal sends through the base station, and when transmission information is given said car-mounted terminal, utilizes the 3rd private key to the information transmission of signing;
After car-mounted terminal was received information from the base station, second exterior storage medium utilized the 3rd PKI that the information that receives is carried out signature verification.
In certain embodiments, this method further comprises:
Said car-mounted terminal takes place at the travel path of vehicle that the specific identifier position is set to unusually when unusual; Whether car-mounted terminal Turn Off Path comparison function sends to second base station with said particular state position and flag after the card inlet place of purpose garden inserts second base station, take place unusually with the travel path that reports current state and vehicle.
In certain embodiments, this method further comprises:
Said car-mounted terminal writes first exterior storage medium with the travel path of vehicle after receiving upload command.
When adopting car-mounted terminal provided by the invention that the vehicle of transportation bonded goods is supervised on the way, need not to set up network and connect, directly can realize through the path comparison.Not only implementation procedure is fairly simple, and therefore can reduce information greatly by the probability that other people steal owing to need not transmit information through public network, thereby has improved the security of transportation.
Embodiment
For making those skilled in the art understand the present invention better, the car-mounted terminal that is used for the vehicle supervision provided by the invention is specified below in conjunction with concrete embodiment.
Fig. 1 shows a kind of car-mounted terminal 100 that is used for vehicle supervision, and this car-mounted terminal 100 mainly comprises: one is used for being used for the Tip element S15 that interface module S12, through the way of contact and outside transmission information is used to receive GPS module S13, a CPU S14 and a transmission information under the control of CPU S14 of the vehicle position information that GPS transmits through radio receiving transmitting module S11, one that wireless transmission method and base station or miscellaneous equipment transmit information.
Wherein, the major function that CPU S14 realized comprises: when receiving download command, from first exterior storage medium, read set path information, upgrade the state of particular state position then; After inserting first base station, said particular state position is sent to first base station to report the current state of car-mounted terminal; After receiving the open command that send first base station, open path comparison function; Upgrade the state of said particular state position; The vehicle position information that beginning receives according to GPS module S13 is confirmed the travel path of vehicle, and whether the travel path that the travel path and the set path of vehicle are compared with definite vehicle takes place unusually; Take place at the travel path of vehicle that control Tip element S15 sends information to the driver when unusual, take place unusual with prompting driver travel path.
Here, the storage medium of the managerial personnel of customs being held is referred to as first exterior storage medium.
In concrete enforcement; For car-mounted terminal can both be communicated through the control desk of wireless mode and garden at each bayonet socket place of garden, therefore can utilize any one technology that can set up the micro radio network to form a small-sized wireless network at the bayonet socket place of garden.The concrete implementation of radio receiving transmitting module S11 should be adapted to this radio network technique.For example, if utilize the Zigbee technology to form a small-sized wireless network at the bayonet socket place of garden, then the radio receiving transmitting module S11 on the car-mounted terminal should be the Zigbee module that is adapted to the Zigbee technology.
In concrete enforcement, the concrete implementation of interface module S12 should be corresponding with the interface of exterior storage medium.Exterior storage medium should carry out data transfer through the way of contact and car-mounted terminal 100.The form of storage medium can but be not limited to be: have the storer of USB interface or have the smart card of microcircuit.If exterior storage medium adopts USB interface, then interface module S12 should be a usb interface controller; If exterior storage medium is an IC-card, then interface module S12 should be the IC-card read write line.
In concrete enforcement, CPU S14 can look the microprocessor that specific requirement selects to have control and calculation function.The chip of realizing CPU S14 function includes but not limited to: digital signal processor (DSP), special IC (ASIC), field programmable gate array (FPGA) or the single-chip microcomputer with embedded system, for example ARM (Advanced RISC Machines) single-chip microcomputer.
In concrete enforcement, the concrete form of Tip element S15 also can have a lot, for example can adopt the voice suggestion driver, also can adopt warning lamp to point out.
Fig. 2 shows a kind of concrete way of realization of car-mounted terminal 200.Car-mounted terminal 200 adopts ARM main control chip S24 as CPU.Zigbee module S21 can realize the radio communication of distance about 100 meters, can satisfy car-mounted terminal 200 and extraneous wireless information interaction like this.Utilize GPS module S13 can obtain the current location of vehicle in real time, can in real time locating information that collects and preset path be compared through path comparison function.Through speech coding technology, can advance at vehicle and take place when unusual, report the prompting driver immediately.
Zigbee module S21 and GPS module S13 communicate with ARM main control chip S24 through serial ports 1, the serial ports 2 of ARM main control chip S24 respectively, and path comparison function and sound prompt function are the functional modules that loads in the system.
Behind the car-mounted terminal electrifying startup, Zigbee module S21, GPS module S13, ARM main control chip S24 just start working.Zigbee module S21 begins to search for the Zigbee base station, and serial ports begins to detect the data that whether have ARM main control chip S24 to send simultaneously.GPS module S13 begins to receive the locating information of satellite and sends to ARM main control chip S24 through serial ports 2.
After system gets into operate as normal; After in case the path of vehicle comparison function is triggered; The master control process will start path comparison function, and the GPS locating information that begins serial ports 2 is received and the set path information of download are compared, and the GPS locating information that actual reception arrives under the real time record.If comparison result has unusually, then call the sound prompt function module, the prompting driver is taken place unusually.Arrive the purpose garden up to vehicle, the master control process can Turn Off Path comparison function.
And when vehicle arrives the bayonet socket place of each garden; Zigbee module S21 detects the Zigbee base station and adds the base station; Relevant information on the car-mounted terminal 200 all can be passed to Zigbee module S21 through serial ports 1, and Zigbee module S21 is transferred to the base station through wireless mode more then.The backstage also is through sending instructions under the Zigbee base station to Zigbee module S21, and then sends to ARM main control chip S24 through serial ports 1 and do corresponding processing.
For the vehicle of transportation customs bond goods, whole transportation is divided into and produces initial garden, vehicle is in transit and changes these three parts of purpose garden over to.Car-mounted terminal 100 shown in Figure 1 is mainly used in supervises vehicle this part in transit, and when utilizing 100 pairs of haulage vehicles of car-mounted terminal to supervise, process is following:
In car-mounted terminal 100, be provided with two specific mode bits, a mode bit is used to indicate whether downloaded set path information, and another mode bit is used to indicate whether opened path comparison function.For example; Can adopt 2 bits (bit) as two mode bits; " 00 " expression is not downloaded set path, is not opened path comparison function; " 10 " expression has been downloaded set path, has not been opened path comparison function, and " 11 " expression has been downloaded set path, opened path comparison function, and " 01 " is represented not download set path, opened path comparison function.When system initialization, two specific mode bits are " 00 ", and the current state of car-mounted terminal is not for downloading set path and not opening path comparison function.
Entrusted path that the enterprise of acknowledgement of consignment bonded goods can the administrative center through customs selects a shipping goods as set path, and this set path information is put on record to administrative center.In initial garden, can set path information be kept in first exterior storage medium that the managerial personnel of customs are held in advance.Here only should not be interpreted as with limiting to and only set path information is kept in first exterior storage medium; Because in the practical implementation process; Can also other information be kept in first exterior storage medium, these information include but not limited to: information of vehicles, cargo manifest information.
In initial garden, the managerial personnel of customs insert car-mounted terminal 100 with first exterior storage medium, and send download command and give car-mounted terminal 100.After car-mounted terminal 100 is received download command, will from first exterior storage medium, download said set path.Here the set path information of only only downloading should be interpreted as with limiting to, the out of Memory of preserving in the storage medium can also be comprised.
With the mode bit of renovated bus mounted terminal 100, this moment, two specific mode bits were updated to " 10 " from " 00 " behind the download set path, and the current state of car-mounted terminal 100 is updated to be downloaded set path and do not open path comparison function.
The car-mounted terminal of having downloaded set path 100 is installed on the vehicle; When vehicle hopes to sail initial garden into; Card inlet place in initial garden; Car-mounted terminal 100 is arranged on the base station at card inlet place, initial garden with access, thereby can make car-mounted terminal 100 insert a wireless network, and car-mounted terminal 100 can be communicated with the base station at card inlet place, initial garden.Here, the base station that is arranged on initial garden is referred to as first base station.
Behind car-mounted terminal 100 access of radio network, first base station that said particular state position " 10 " is sent to the card inlet place through wireless mode is to report the current state of car-mounted terminal 100.Here only should not be interpreted as only the particular state position to be sent to first base station with limiting to, can also comprise out of Memory, for example information of vehicles, driver information, cargo manifest information.
First base station at card inlet place sends to the control desk at card inlet place with the particular state position of receiving, after the information that information and back bench control system that control desk sends the base station provide is compared, if the errorless then clearance vehicle of arguing.Here should not be interpreted as that the keeper only only compares the particular state position, can also comprise out of Memory, for example information of vehicles, driver information, cargo manifest information with limiting to.
After the discharging of goods, when vehicle hopes to roll initial garden away from, initial garden go out the bayonet socket place, car-mounted terminal 100 still can send to out current state first base station at bayonet socket place.Here should not be interpreted as first base station that only only the particular state position is sent to out the bayonet socket place with limiting to, can also comprise out of Memory, for example information of vehicles, driver information, cargo manifest information.
First base station that goes out the bayonet socket place sends to out the control desk at bayonet socket place with the particular state position of receiving, after the information that information and back bench control system that control desk sends the base station provide is compared, if the errorless then clearance vehicle of arguing.Here should not be interpreted as that the keeper only only compares the particular state position, can also comprise out of Memory, for example information of vehicles, driver information, cargo manifest information with limiting to.
Argue after the clearance, send open command at control desk through first base station that goes out the bayonet socket place and give car-mounted terminal 100.Car-mounted terminal 100 starts path comparison function after receiving out the open command of sending first base station at bayonet socket place; And said particular state position is updated to " 11 ", the current state that is about to car-mounted terminal 100 is updated to be downloaded set path and has opened path comparison function.
The back vehicle of letting pass of arguing rolls initial garden away from, and it is in transit promptly to belong to vehicle, just should begin the travel path of vehicle is supervised from beginning this moment.After the car-mounted terminal 100 startup paths comparison function, the vehicle position information that beginning receives according to GPS module S13 is confirmed the travel path of vehicle.Can adopt technology at present commonly used to confirm the travel path of vehicle to repeat no more here according to the positional information of vehicle.
Whether in the process that vehicle is advanced, car-mounted terminal 100 is compared the travel path and the set path of vehicle, take place unusually with the travel path of confirming vehicle.Car-mounted terminal 100 finds that through comparison the travel path of vehicle takes place can control Tip element S15 and send information to the driver when unusual, takes place unusual with the travel path of prompting driver vehicle.
Described here comprise multiple situation unusually, for example, travel path departs from set path or vehicle abnormality stops.After the driver receives prompting, should get back to set path as early as possible, advance by set path again.
Compared with prior art, when the vehicle that adopts 100 pairs of car-mounted terminals shown in Figure 1 to transport bonded goods is supervised on the way, need not to set up network and connect, directly can realize through the path comparison.Not only implementation procedure is fairly simple, and therefore can reduce information greatly by the probability that other people steal owing to need not transmit information through public network, thereby has improved the security of transportation.
Though adopt car-mounted terminal shown in Figure 1 can realize haulage vehicle is supervised on the way, the managerial personnel of customs can't learn but whether vehicle abnormal conditions took place in advancing.For the managerial personnel that can make customs learn whether vehicle abnormal conditions took place in advancing, a specific identifier position can be set in car-mounted terminal 100, be used to indicate whether to take place abnormal conditions.For example, can adopt 1 bit, when this bit is " 1 ", represent unusually, otherwise expression be normal as the specific identifier position.
Like this, when the travel path of vehicle takes place when unusual, CPU S14 also can be set to unusually the specific identifier position, is about to this bit set.
When vehicle arrives the purpose garden and hopes to sail into the purpose garden; Card inlet place in the purpose garden; Car-mounted terminal 100 is arranged on the base station at card inlet place, purpose garden with access, thereby can make car-mounted terminal 100 insert a wireless network, and car-mounted terminal 100 can be communicated with the base station.Here, the base station that is arranged on the purpose garden is referred to as second base station.
Behind car-mounted terminal 100 access of radio network; Turn Off Path comparison function; Through wireless mode said particular state position " 11 " and said specific identifier position are sent to second base station at card inlet place, whether take place unusually with the current state that reports car-mounted terminal 100 and the travel path of vehicle.Second base station at card inlet place sends to particular state position of receiving and flag in the control desk at card inlet place.Here only should not be interpreted as only particular state position and specific identifier position to be sent to second base station with limiting to, can also comprise out of Memory, for example information of vehicles, driver information, cargo manifest information.
At control desk base station information of sending and the information that the back bench control system provides are compared, it is unusual to learn according to the state of said specific identifier position whether vehicle occurred in traveling process.Here should not be interpreted as that the keeper only only compares specific identifier position and mode bit, can also comprise out of Memory, for example information of vehicles, driver information, cargo manifest information with limiting to.
Just do not indicate vehicle to the loading dock if note abnormalities, otherwise can indicate vehicle to check to the examination district.Managerial personnel insert car-mounted terminal 100 with its first exterior storage medium of holding, and concurrent serving passes order to car-mounted terminal 100.For the keeper that can make customs obtains the real travel path of vehicle, CPU S14 also is used for after receiving upload command the travel path of vehicle is write first exterior storage medium.After the keeper of customs obtains the real travel path of vehicle, travel path that can the playback vehicle, thus reliable basis for estimation is provided for inspection work.Vehicle rolls the purpose garden away from after accomplishing unloading, and so far freight transportation is just accomplished between complete bonded garden.
Can find out, not only can the abnormal conditions of registration of vehicle in the transport driving process in car-mounted terminal, can also preserve vehicle, driver, the cargo manifest information of whole transportation, thereby reliable supervision data are provided for corresponding supervision department of customs.
Also need to prove; In the process of practical implementation; Managerial personnel's that both can be through customs direct control sends download command and gives exterior storage medium with the control car-mounted terminal from the exterior storage medium download message and the information of uploading with upload command, also can be directly through wireless mode transmission download command and upload command.
For simplicity; Can send download command and upload command by the managerial personnel's of customs direct control; An input equipment that supplies operating personnel to import download command and upload command also need be set on car-mounted terminal this moment, said input equipment can but to be not limited to be button or touch-screen.Fig. 3 shows a kind of structure of car-mounted terminal.Car-mounted terminal 300 is provided with button S31, as the input equipment of operating personnel's input command.
For preventing that the someone from pretending to be the driver; Or the managerial personnel that pretend to be customs from car-mounted terminal download message, upload error message; Or other possibly jeopardize the situation of information security; The function of authentication can be increased at car-mounted terminal, the security module of authentication need be carried out for this reason in the car-mounted terminal increase.Fig. 4 shows a kind of car-mounted terminal 400.
Can find out that compare with car-mounted terminal 100 shown in Figure 1, car-mounted terminal 400 has increased security module S41.Here should security module S41 be interpreted as it is an entity with limiting to, can also security module S41 be interpreted as the software function module that supplies CPU S14 to call.
The major function of security module S41 comprises: utilize corresponding second PKI that the driver is carried out signature verification, with checking driver's identity; When CPU S14 receives download command, utilize corresponding first public key that the keeper is carried out signature verification, checking is read set path information through the back from first exterior storage medium; When CPU S14 receives upload command, utilize corresponding first public key that the keeper is carried out signature verification, checking through after the travel path of vehicle is write first exterior storage medium.
The mode that realizes security module S41 has a lot, and in the specific implementation, alternative a kind of mode is to adopt existing P KI public keys system.For verifying to driver's identity, need be equipped with a storage medium of preserving driver identification information for the driver, the interface of this storage medium should be corresponding with the concrete implementation of interface module S12.If interface module S12 is a usb interface controller, then this storage medium should adopt USB interface; If interface module S12 is the IC-card read write line, then this medium should be IC-card.
Here, the storage medium of preserving driver identification information is referred to as second exterior storage medium.
Generate the pair of secret keys that is used for the authentic administrator identity in advance, comprise a private cipher key (hereinafter to be referred as " private key ") and a public keys (hereinafter to be referred as " PKI ").The key that will be used for the authentic administrator identity is right to being referred to as first key, and correspondingly, the private key that is used for the authentic administrator identity is referred to as first private key, and the PKI that is used for the authentic administrator identity is referred to as first PKI.
In like manner; Generate the pair of secret keys that is used to verify driver identification in advance, will be used to verify that the key of driver identification is right to being referred to as second key, correspondingly; Be used to verify that the private key of driver identification is referred to as second private key, be used to verify that the PKI of driver identification is referred to as second PKI.
First private key is kept in first exterior storage medium that the keeper holds in advance, is used to generate keeper's digital signature.Second private key is saved in second exterior storage medium that is equipped with into the driver in advance, is used to generate driver's digital signature.First PKI and PKI all are kept at car-mounted terminal in advance, and first PKI is used for the keeper is carried out signature verification, and second PKI is used for the driver is carried out signature verification.
In initial garden, the managerial personnel of customs insert car-mounted terminal 400 with its first exterior storage medium of holding, and send download command and give car-mounted terminal 400.After car-mounted terminal 400 is received download command, utilize the corresponding first public key of storage in advance that the keeper is carried out signature verification.After checking was passed through, car-mounted terminal 400 will read set path information and out of Memory from first exterior storage medium.In the purpose garden, the managerial personnel of customs insert car-mounted terminal 400 with its first exterior storage medium of holding, and concurrent serving passes order to car-mounted terminal 400.After car-mounted terminal 400 is received upload command, utilize the corresponding first public key of storage in advance that the keeper is carried out signature verification.After checking was passed through, car-mounted terminal 400 will write first exterior storage medium with the travel path and the out of Memory of vehicle.
The car-mounted terminal 400 that the driver will download set path is installed on the car; And be inserted as second exterior storage medium of its outfit, whether car-mounted terminal 400 can utilize corresponding second PKI of storage in advance that the driver is carried out signature verification legal with checking driver's identity.
Can solve personnel's Authentication Questions through increasing security module, further, can also carry out signature verification to improve the security of information transmission the information of car-mounted terminal and base station transmits at car-mounted terminal.For this reason, can in distributing to driver's second exterior storage medium, increase the information security module.
It is right to generate the 3rd key that is used for Information Authentication in advance.When car-mounted terminal transmission information was given the base station, the information security module utilized second private key to generate the digital signature of information, then information and digital signature thereof is sent to the base station in the lump.After the information of car-mounted terminal transmission was received in the base station, whether the backstage can utilize corresponding second PKI that information is carried out signature verification, distorted to judge information.When transmission information in base station was given car-mounted terminal, the backstage utilized the 3rd private key to generate the digital signature of information, then information and digital signature thereof is sent to car-mounted terminal in the lump.After car-mounted terminal was received the information of sending the base station, whether the information security module can utilize corresponding the 3rd PKI that information is carried out signature verification, distorted to judge information.
Wherein, can the 3rd PKI be kept at the information security module in advance, also can the 3rd PKI be kept at security module in advance.After car-mounted terminal passes through driver identification checking; Transmit security module through information the 3rd PKI is passed to second exterior storage medium, so that second exterior storage medium utilizes the 3rd PKI that the information that first base station or second base station send to car-mounted terminal is carried out signature verification.
In the practical implementation of reality, the information security module also can portion be arranged in second exterior storage, and is set directly in the vehicle mobile terminals, and the car-mounted terminal of this moment is as shown in Figure 5.
Can find out, after car-mounted terminal increases the information security module, can carry out signature verification to information transmitted, thereby improve the security of information transmission greatly.Above-mentioned is some embodiment that are used for the car-mounted terminal of vehicle supervision, and the embodiment of some car monitoring systems and the embodiment of some vehicle monitoring and managing methods also are provided below.
In the embodiment of a car monitoring system; Comprise the car-mounted terminal that is used for the vehicle supervision; Form the micro radio network to carry out the base station of radio communication with said car-mounted terminal; The background monitoring system that links to each other with the base station and to supply the keeper to carry out the control desk of control operation and relevant information is provided for control desk.
Car-mounted terminal is installed on the institutionalized vehicle when the travel path of vehicle is supervised, and the base station should be arranged on the going out of garden (comprising initial garden and purpose garden), card inlet place.
The flow process of utilizing car monitoring system that vehicle is supervised is as shown in Figure 6.
Entrusted path that the enterprise of acknowledgement of consignment bonded goods can the administrative center through customs selects a shipping goods as set path, and this set path information is put on record to administrative center.In initial garden, can set path information be kept in first exterior storage medium that the managerial personnel of customs are held in advance.In the practical implementation process, can also other information be kept in first exterior storage medium, these information include but not limited to: information of vehicles, cargo manifest information.
In initial garden, the managerial personnel of customs insert car-mounted terminal with first exterior storage medium, and send download command and give car-mounted terminal.Car-mounted terminal is received the state (step 601) of from first exterior storage medium, downloading set path behind the download command and upgrading the particular state position.This moment, two specific mode bits were updated to " 10 " from " 00 ", and the current state of car-mounted terminal is updated to be downloaded set path and do not open path comparison function.
The car-mounted terminal of having downloaded set path is installed on the vehicle.After the discharging of goods, when vehicle hopes to roll initial garden away from, initial garden go out the bayonet socket place, car-mounted terminal can send to first base station to report current state (step 602) with the particular state position.
First base station that goes out the bayonet socket place sends to connected control desk with the particular state position of receiving, after the information that provides on information that control desk sends the base station and backstage is compared, if the errorless then clearance vehicle of arguing.
Argue after the clearance, send open command (step 603), open command is sent to car-mounted terminal through first base station at control desk.Car-mounted terminal starts path comparison function after receiving open command, upgrades the state (step 604) of said particular state position.Then, the vehicle position information that the beginning basis receives is confirmed the travel path of vehicle, and the travel path and the set path of vehicle are compared with the travel path of confirming vehicle whether unusual (step 605) to take place.Take place at the travel path of vehicle that the control Tip element sends information to the driver when unusual, unusual (step 606) takes place with prompting driver travel path.
For the managerial personnel that can make customs learn whether vehicle abnormal conditions took place, and a specific identifier position can be set, and were used to indicate whether to take place abnormal conditions in car-mounted terminal in advancing.
Like this, when the travel path of vehicle takes place when unusual, car-mounted terminal also can be set to unusually the specific identifier position, is about to this bit set.
When vehicle arrives the purpose garden and hopes to sail into the purpose garden; Card inlet place in the purpose garden; Car-mounted terminal is arranged on second base station at card inlet place, purpose garden with access, thereby can make car-mounted terminal insert a wireless network, and car-mounted terminal can be communicated with second base station.
Behind the car-mounted terminal access of radio network; Through wireless mode said particular state position " 11 " and said specific identifier position are sent to second base station, the control desk that is connected with second base station at card inlet place will learn whether the current state of car-mounted terminal and the travel path of vehicle take place unusually.
The information that information of the base station being sent at control and monitor console and background monitoring system provide is compared, and it is unusual to learn according to the state of said specific identifier position whether vehicle occurred in traveling process.Just do not indicate vehicle to the loading dock if note abnormalities, otherwise can indicate vehicle to check to the examination district.
Managerial personnel insert car-mounted terminal with its first exterior storage medium of holding, and concurrent serving passes order to car-mounted terminal.Car-mounted terminal receives after the upload command that the travel path with vehicle writes first exterior storage medium.After the keeper of customs obtains the real travel path of vehicle, travel path that can the playback vehicle, thus reliable basis for estimation is provided for inspection work.Vehicle rolls the purpose garden away from after accomplishing unloading, and so far freight transportation is just accomplished between complete bonded garden.
Can find out, not only can the abnormal conditions of registration of vehicle in the transport driving process in car-mounted terminal, can also preserve vehicle, driver, the cargo manifest information of whole transportation, thereby reliable supervision data are provided for corresponding supervision department of customs.
For preventing that the someone from pretending to be the driver; Or the managerial personnel that pretend to be customs from car-mounted terminal download message, upload error message; Or other possibly jeopardize the situation of information security; The function of authentication can be increased at car-mounted terminal, the security module of authentication need be carried out for this reason in the car-mounted terminal increase.
In initial garden, the managerial personnel of customs insert car-mounted terminal with its first exterior storage medium of holding, and send download command and give car-mounted terminal.After car-mounted terminal is received download command, utilize the corresponding first public key of storage in advance that the keeper is carried out signature verification.After checking was passed through, car-mounted terminal will read set path information and out of Memory from first exterior storage medium.In the purpose garden, the managerial personnel of customs insert car-mounted terminal with its first exterior storage medium of holding, and concurrent serving passes order to car-mounted terminal.After car-mounted terminal is received upload command, utilize the corresponding first public key of storage in advance that the keeper is carried out signature verification.After checking was passed through, car-mounted terminal will write first exterior storage medium with the travel path and the out of Memory of vehicle.
The car-mounted terminal that the driver will download set path is installed on the car, and is inserted as second exterior storage medium of its outfit, and whether car-mounted terminal can utilize corresponding second PKI of storage in advance that the driver is carried out signature verification legal with checking driver's identity.
After having solved the problem of personal identity authentication, further, can also carry out signature verification to improve the security of information transmission to the information of car-mounted terminal and base station transmits.For this reason, can in distributing to driver's second exterior storage medium, increase the information security module.
It is right to generate the 3rd key that is used for Information Authentication in advance.When car-mounted terminal transmission information was given the base station, the information security module utilized second private key to generate the digital signature of information, then information and digital signature thereof is sent to the base station in the lump.After the information of car-mounted terminal transmission was received in the base station, whether second PKI that can utilize background monitoring system to provide at control desk carried out signature verification to information, distorted to judge information.When control desk transmission information was given car-mounted terminal, the 3rd private key that can utilize background monitoring system to provide generated the digital signature of information, then information and digital signature thereof is sent to car-mounted terminal in the lump.After car-mounted terminal was received the information of sending the base station, whether the information security module can utilize corresponding the 3rd PKI that information is carried out signature verification, distorted to judge information.
Wherein, can the 3rd PKI be kept at the information security module in advance, also can the 3rd PKI be kept at security module in advance.After car-mounted terminal passes through driver identification checking, the 3rd PKI is passed to second exterior storage medium, so that second exterior storage medium utilizes the 3rd PKI that the information that first base station or second base station send to car-mounted terminal is carried out signature verification.
According to said disclosed embodiment, can be so that those skilled in the art can realize or use the present invention.To those skilled in the art, the various modifications of these embodiment are conspicuous, and the general principles of definition here also can be applied to other embodiment on the basis that does not depart from the scope of the present invention with purport.Above-described embodiment is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.