JP4344293B2 - Data transfer success / failure determination method and data transfer method using the same - Google Patents

Description

  The present invention relates to an in-vehicle system and a road system that perform spot area type road-to-vehicle communication, from the transmission side that is one of the in-vehicle system and the road system when the in-vehicle system passes a predetermined communication area. The present invention relates to a method for determining success or failure of transfer of all operation data to a receiving side, and a data transfer method using the method.

Conventional, Kiko the taxi vehicle, etc., customers of getting on and off time and getting on and off place, a record of the sentence a day of charges, etc., is to be transferred to the office using wireless communication as the operational data, the efficiency of business Various methods have been proposed. For example, according to the method of Patent Document 1 below, in an in-vehicle system and a road system that perform spot area type road-to-vehicle communication, when a communication area is installed on the premises of a taxi company and a taxi vehicle passes through this communication area All operation data is transferred from the in-car system in the taxi to the road system on the premises. As a result, it is possible to collect all operation data for one day from all taxi vehicles with a minimum of road radio devices.

  By the way, in spot area type road-to-vehicle communication, the amount of data that can be transferred when passing through a predetermined communication area can be obtained as follows if the communication connection time is ignored.

Time required for passing through communication area t = area length L / vehicle speed v
Transferable data amount = t × data transfer speed

For example, in consideration of the actual situation, assuming that the data transfer speed of the system is 100 kbps and the area length L is 10 m, the transferable data amount is as shown in FIG. That is, it can be understood that a larger amount of data can be transferred as the vehicle travels at a lower speed.
Japanese Patent Laid-Open No. 4-248692 JP 63-157532 A

  However, when there are a large number of sales per day, the taxi vehicle will pass through the communication area before sending all the operation data, even if the vehicle is traveling as low as practically possible. May not be transferred to the office.

  Therefore, in the above-mentioned Patent Document 2, the amount of data that can be transferred is increased by extending the communication area, that is, by extending the area length L, thereby extending the communication area passing time t.

  However, if the area length L is extended, the time required for passing is inevitably increased, so that, for example, when vehicles with a large amount of data to be transferred continue, the subsequent vehicle becomes congested near the roadside radio. In addition, the expansion of the communication area accompanying the extension of the area length L makes it easier to be affected by noise and interference, resulting in a decrease in communication quality. In addition, there may be cases where a sufficiently wide communication area cannot be secured on the premises. Furthermore, adjustment of the area length L is not easy.

In the case of sightseeing buses, when a bus equipped with an in-vehicle system that is going to return after finishing work passes through the gate at the entrance of the branch office, the bus side changes from the branch office side where the road system is installed. It is necessary to distribute the next day's operation plan as operation data, and the same problem occurs.

  Therefore, in view of the present situation described above, the present invention uses a data transfer success / failure determination method for transferring all operation data from the in-vehicle system side to the road system side or vice versa without expanding the communication area. It is an object to provide a data transfer method.

Data transfer success determination method according to claim 1, wherein has been made to solve the above described problems is the vehicle system and road system for performing spot area type road-vehicle communication, when the vehicle system has passed the predetermined communication area, the vehicle from the system and the transmission side is either one of the road system to the receiving side which is the other, a determining data transfer success determination method whether to transfer all the operational data, in the transmission side, Blocking all the operation data and storing it in the transmission side memory, transmitting the total number of data blocks of the total operation data, and transmitting the number of transmitted data blocks indicating the number of transmitted operation data blocks of the total operation data Count and compare the number of transmitted data blocks with the number of all data blocks indicating the number of blocks of all operation data Determines the transfer success of all operation data when it passes through the communication area, and, in this way and outputs a determination result obtained by the the receiving side receives the total number of data blocks, the receiving The number of received data blocks indicating the number of blocks of completed operation data is counted, the number of received data blocks is compared with the number of all data blocks, and the transfer success / failure of all the operation data when passing through the communication area When the transfer success / failure of all the operation data indicates unsuccessful transfer, the operation data is stored in a portable storage medium, and offline transfer is selected instead of online transfer. And

According to the first aspect of the invention, on the transmission side, all operation data is blocked and stored in the transmission side memory, and the number of transmitted data blocks indicating the number of transmitted operation data blocks of all operation data is counted. Then, the number of transmitted data blocks is compared with the number of all data blocks indicating the number of blocks of all operation data to determine the success or failure of transfer of all operation data when passing through the communication area, and the determination result is output. Also, on the transmitting side, the total number of data blocks is transmitted, and on the receiving side, the total number of data blocks is received, the number of received data blocks indicating the number of received operation data blocks is counted, and the number of received data blocks By comparing the total number of data blocks, it is determined whether or not the transfer of all operation data when passing through the communication area is successful.

The data transfer method according to claim 2, which has been made to solve the above-described problem, is a data transfer method using the data transfer success / failure determination method according to claim 1 , wherein the transmission side transmits the transmitted data. When the number of blocks and the total number of data blocks do not match, the entire operation data is stored in a portable storage medium, and the receiving side temporarily stores received operation data of the entire operation data, The number of received data blocks indicating the number of blocks of the received operation data is counted, and when the number of received data blocks and the number of all data blocks do not match, the stored received operation data is discarded. And all the operation data are acquired from the said portable storage medium, It is characterized by the above-mentioned.

According to the second aspect of the present invention, when the number of transmitted data blocks does not match the number of all data blocks, all operation data is stored in the portable storage medium on the transmission side. In addition, the receiving side temporarily stores received operation data among all operation data, counts the number of received data blocks indicating the number of blocks of received operation data, and determines the number of received data blocks and the total number of data blocks. If they do not match, the stored received operation data is discarded, and all the operation data is acquired from the portable storage medium.

The data transfer method according to claim 3, which has been made to solve the above-described problem, is a data transfer method using the data transfer success / failure determination method according to claim 1 , wherein the transmitting side transmits the transmitted data. When the number of blocks and the total number of data blocks do not match, the entire operation data is stored in a portable storage medium, and the receiving side temporarily stores received operation data of the entire operation data, The number of received data blocks indicating the number of blocks of the received operation data is counted, and if the number of received data blocks and the number of all data blocks do not match, the next data block after the number of received data blocks Operation data corresponding to the number of all data blocks is acquired from the portable storage medium and added to the stored operation data stored therein. , Characterized in that.

According to the third aspect of the present invention, on the transmission side, when the number of transmitted data blocks and the total number of data blocks do not match, all operation data is stored in the portable storage medium. In addition, the receiving side temporarily stores received operation data among all operation data, counts the number of received data blocks indicating the number of blocks of received operation data, and determines the number of received data blocks and the total number of data blocks. If they do not match, operation data corresponding to the number of data blocks next to the number of received data blocks to the total number of data blocks is acquired from the portable storage medium and added to the stored received operation data. .

The data transfer method according to claim 4, which has been made to solve the above-described problem, is a data transfer method using the data transfer success / failure determination method according to claim 1 , wherein the transmitting side transmits the transmitted data. The operation data corresponding to the number of blocks is erased from the memory on the transmission side, and when the number of transmitted data blocks and the number of all data blocks do not match, the number of data blocks next to the number of transmitted data blocks is Only operation data corresponding to the total number of data blocks is stored in a portable storage medium, and the receiving side temporarily stores received operation data out of all the operation data, and determines the number of blocks of the received operation data. The number of received data blocks is counted, and when the number of received data blocks does not match the number of all data blocks, the received data block The operation data corresponding to the number of data blocks next to the number of data blocks to the number of all data blocks is acquired from the portable storage medium and added to the stored operation data received. .

According to the invention described in claim 4 , on the transmission side, the operation data corresponding to the number of transmitted data blocks is erased from the transmission side memory, and when the number of transmitted data blocks and the total number of data blocks do not match. Only the operation data corresponding to the number of data blocks next to the number of transmitted data blocks to the total number of data blocks is stored in the portable storage medium. In addition, the receiving side temporarily stores received operation data among all operation data, counts the number of received data blocks indicating the number of blocks of received operation data, and determines the number of received data blocks and the total number of data blocks. If they do not match, operation data corresponding to the number of data blocks next to the number of received data blocks to the total number of data blocks is acquired from the portable storage medium and added to the stored received operation data. .

The data transfer method according to claim 5 made to solve the above-mentioned problem is the data transfer method according to any one of claims 2 to 4 , wherein the in-vehicle system as the transmission side. When the determination result indicates unsuccessful transfer and the power supply from the in-vehicle battery is stopped while the portable storage medium is still mounted, the auxiliary power source mounted in the in-vehicle system is using said outputs the transfer forgetting alarm for you alarm transfer forgetting all operational data, characterized in that.

According to the fifth aspect of the present invention, when the determination result indicates that the transfer is unsuccessful and the portable storage medium remains mounted, the in-vehicle system stops the power supply from the in-vehicle battery. , using the auxiliary power, it outputs the transfer forgetting alarm for you alarm forwarding forgotten.

According to the invention described in claim 1, the transmit side, all the operational data stored in blocks on the transmission side memory, the transmitted number of data blocks indicating the number of blocks transmitted operational data of all operational data Count, compare the number of transmitted data blocks with the number of all data blocks indicating the number of blocks of all operation data, determine the success or failure of transfer of all operation data when passing through the communication area, and output this determination result . Therefore, since it is possible to reliably know whether or not all the operation data has been transferred on the transmission side, it is possible to perform appropriate post-processing for transferring all the operation data.

Also, on the transmitting side, the total number of data blocks is transmitted, and on the receiving side, the total number of data blocks is received, the number of received data blocks indicating the number of received operation data blocks is counted, and the number of received data blocks By comparing the total number of data blocks, it is determined whether or not the transfer of all operation data when passing through the communication area is successful. Therefore, since the receiving side can surely know whether or not all the operation data has been transferred, an appropriate post-processing for transferring all the operation data becomes possible.

According to the second aspect of the present invention, when the number of transmitted data blocks does not match the number of all data blocks, all operation data is stored in the portable storage medium on the transmission side. In addition, the receiving side temporarily stores received operation data among all operation data, counts the number of received data blocks indicating the number of blocks of received operation data, and determines the number of received data blocks and the total number of data blocks. If they do not match, the stored received operation data is discarded, and all the operation data is acquired from the portable storage medium. Therefore, all operation data can be reliably transferred to the receiving side with a simple processing procedure without expanding the communication area.

According to the third aspect of the present invention, on the transmission side, when the number of transmitted data blocks and the total number of data blocks do not match, all operation data is stored in the portable storage medium. In addition, the receiving side temporarily stores received operation data among all operation data, counts the number of received data blocks indicating the number of blocks of received operation data, and determines the number of received data blocks and the total number of data blocks. If they do not match, operation data corresponding to the number of data blocks next to the number of received data blocks to the total number of data blocks is acquired from the portable storage medium and added to the stored received operation data. . Therefore, all operation data can be reliably transferred to the receiving side without expanding the communication area. In particular, on the receiving side, operation data corresponding to the number of data blocks subsequent to the number of received data blocks to the total number of data blocks is acquired from the portable storage medium and added to the stored received operation data. Therefore, the processing time on the receiving side can be shortened.

According to the invention described in claim 4 , on the transmission side, the operation data corresponding to the number of transmitted data blocks is erased from the transmission side memory, and when the number of transmitted data blocks and the total number of data blocks do not match. Only the operation data corresponding to the number of data blocks next to the number of transmitted data blocks to the total number of data blocks is stored in the portable storage medium. In addition, the receiving side temporarily stores received operation data among all operation data, counts the number of received data blocks indicating the number of blocks of received operation data, and determines the number of received data blocks and the total number of data blocks. If they do not match, operation data corresponding to the number of data blocks next to the number of received data blocks to the total number of data blocks is acquired from the portable storage medium and added to the stored received operation data. . Therefore, all operation data can be reliably transferred to the receiving side without expanding the communication area. In particular, on the transmission side, operation data corresponding to the number of transmitted data blocks is erased from the memory on the transmission side, and only operation data corresponding to the number of data blocks following the number of transmitted data blocks to the total number of data blocks is portable. The received operation data stored in the storage medium is acquired from the portable storage medium and stored on the receiving side corresponding to the number of data blocks next to the number of received data blocks to the total number of data blocks. Therefore, the processing time at the time of data transfer can be shortened on both the transmission side and the reception side. Further, the data to be recorded on the storage medium may be the minimum necessary.

According to the fifth aspect of the present invention, when the determination result indicates that the transfer is unsuccessful and the portable storage medium remains mounted, the in-vehicle system stops the power supply from the in-vehicle battery. , using the auxiliary power, it outputs the transfer forgetting alarm for you alarm forwarding forgotten. Therefore, the post-processing for transferring all the operation data is surely prompted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration of the entire system that is common to each embodiment and modification of the present invention. FIG. 2 is a block diagram showing a hardware configuration of the in-vehicle system and the road system that is common to the first to third embodiments and modifications of the present invention. FIG. 3 is a diagram illustrating the contents of the in-vehicle memory according to the first and second embodiments of the present invention.

  As shown in FIG. 1, the entire system includes an in-vehicle system 1, a road system 2, and a memory card 3 (corresponding to the portable storage medium in the claims) that mediates these systems. The in-vehicle system 1 is mounted on a vehicle CR such as a taxi. The road system 2 includes a road radio 21 installed at the gate GT of the taxi company entrance, a PC (personal computer) 22 and a card R / W (reader / writer) 23 installed in the office MG of the taxi company. And.

  Specifically, as shown in FIG. 2, the in-vehicle system 1 includes an in-vehicle control unit 11, a taximeter 12, an in-vehicle wireless device 13, an in-vehicle memory 14, a buzzer 15, and a card R / W 16. The in-vehicle controller 11 basically includes a microcomputer including a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (A Read / Write Memory as needed). The taxi meter 12 acquires operation data related to time, place, fee, etc., and gives it to the in-vehicle controller 11.

  The in-vehicle wireless device 13 has a transmission / reception function for performing spot area type road-to-vehicle communication. The spot area type road-to-vehicle communication is, for example, the well-known DSRC (Dedicated Short Range Communication). In this case, for example, a radio wave of 5.8 GHz band is used. The in-vehicle memory 14 stores the collected operation data in blocks as shown in FIG. For example, the first block is the first sales operation, the second block is the second sales operation, and so on. (First and second embodiments). The buzzer 15 is sounded when all the operation data cannot be transferred. The card R / W 16 records the collected operation data on the memory card 3.

  The roadside radio 21 included in the roadside system 2 has a transmission / reception function for performing spot area type road-to-vehicle communication with the vehicle-mounted radio 13. The PC 22 is, for example, a well-known desktop computer. The card R / W 23 reads the operation data recorded on the memory card 3. Note that the memory card 3 is constituted by, for example, an SRAM card.

  In FIG. 1, an in-vehicle system 1 mounted on a vehicle CR includes all operation data related to time, place, fee, etc. collected within a predetermined period, for example, a day, in-vehicle memory 14 (see FIG. 2) and memory card 3. To record. In order to return the vehicle, when the vehicle CR passes through the communication area AR covered by the roadside radio 21, the in-vehicle system 1 and the roadside radio 21 mounted on the vehicle CR are connected between the spot area type road-vehicle. Communication is performed and the operation data is transferred to the PC 22 of the office MG.

  If the transfer of all the operation data cannot be completed by the spot area type road-to-vehicle communication, the entire operation data recorded in the memory card 3 or a part thereof is read by the card R / W 23 and the PC 22 of the office MG is read. Finally, the transfer of all operation data is completed. This method will be described in detail in Embodiments 1 to 3 below.

[First Embodiment]
FIG. 4 is a communication sequence diagram between the in-vehicle system and the road system according to the first embodiment of the present invention. FIG. 5 is a diagram showing data exchange between the in-vehicle system and the road system according to the first embodiment of the present invention. FIG. 6 is a flowchart showing a processing procedure of the in-vehicle system according to the first embodiment of the present invention. FIG. 7 is a flowchart showing a processing procedure of the road system according to the first embodiment of the present invention.

  In FIG. 5, A indicates the total number of data blocks on the transmission side (in-vehicle system side), B indicates the number of transmitted data blocks, and C indicates the number of transmitted data blocks on the reception side (on the road system side). And it shall transfer sequentially from the head block.

  As shown on the left side of FIG. 4, in the in-vehicle system 1 (1) of the first embodiment, the operation data collected by the taximeter 12 is converted into data blocks as shown in FIG. 6 and stored in the in-vehicle memory 14 (step T101). When entering the communication area AR (step T102), the total number of data blocks A is transmitted (step T103). Subsequently, when the first block is transmitted (step T104), the number of transmitted data blocks B is counted (step T105). When the second block is transmitted (step T106), the number of transmitted data blocks B is counted (step T106). T107), the number B of transmitted data blocks is counted up. When the communication area AR is exited and communication is terminated (step T108), the total data block number A and the transmitted data block number B are compared (step T109), and the transfer result is determined (step T110).

  Also, as shown on the right side of FIG. 4, the road system 2 (1) of the first embodiment receives the total number of data blocks A (step T201), and receives the first block (step T202). The number of data blocks C is counted (step T203). When the second block is received (step T204), the number of received data blocks C is counted (step T205). I will do it. When communication ends (step T206), the total data block number A and the received data block number C are compared (step T207), and the transfer result is determined (step T208).

  The processing procedure of the in-vehicle system 1 (1) shown in FIG. 4 will be supplementarily described with reference to the flowchart of FIG. 6. First, the total number of data blocks A and the number of transmitted data blocks B are set to 0 (step S101). Until entering the communication area AR (N in Step S105), every time business is completed (Y in Step S102), the operation data is blocked and stored in the in-vehicle memory 14 (Step S103), and the total number of data blocks A is counted. (Step S104).

  When entering the communication area AR (Y in step S105), as long as the user is in the communication area AR (Y in step S109), data blocks are sequentially transmitted from the top (step S107), and the number B of transmitted data blocks is counted up. (Step S108).

  When leaving the communication area AR (N in step S109), the total number of data blocks A and the number of transmitted data blocks B are compared, and if both block numbers match (Y in step S110), it is determined that the transfer is successful. (Step S111), a series of processing ends. On the other hand, the total number of data blocks A and the number of transmitted data blocks B are compared. If the number of blocks does not match (N in step S110), it is determined that the transfer is unsuccessful (step S112), and the buzzer 15 is sounded. (Step S113), all the operation data stored in the in-vehicle memory 14 are transferred to the memory card 3 and stored (Step S114), and the series of processes is terminated.

  As described above, the in-vehicle system side compares the total number of data blocks A with the number of transmitted data blocks B to determine whether or not all the operation data has been transferred when passing through the communication area AR, and outputs the determination result. . For example, if the transfer is unsuccessful, the buzzer 15 is sounded. Therefore, since it is possible to reliably know whether or not all the operation data has been transferred on the in-vehicle system side, an appropriate post-processing for transferring all the operation data becomes possible.

  Further, the processing procedure of the road system 2 (1) shown in FIG. 4 will be supplementarily described with reference to the flowchart of FIG. 7. First, the total number of data blocks A and the number of received data blocks C are set to 0 (step S201). ) Until the communication is completed (N in step S206), the total number of data blocks A is received (step S202). Each time a data block is received (Y in step S203), the received data block is stored in the memory in the PC 22. Accumulation is performed (step S204), and the number C of received data blocks is counted up (step S205).

  When communication is completed (Y in step S206), the total number of data blocks A and the number of received data blocks C are compared (step S207). If the number of both blocks matches (Y in step S208), it is determined that the transfer is successful. (Step S209), and a series of processing ends. On the other hand, the total number A of data blocks and the number C of received data blocks are compared. If the numbers of both blocks do not match (N in step S208), it is determined that the transfer is unsuccessful (step S210). Is cleared (step S211), all operation data is received by offline transfer (step S212), and the series of processes is terminated.

  Offline transfer means that operation data is transferred through the memory card 3. On the other hand, online transfer means transferring operation data via spot area type road-to-vehicle communication (without going through the memory card 3). In the first embodiment, when all the operation data is unsuccessfully transferred, the road system 2 (1) discards all the received operation data once stored, as shown in FIG. The operation data is acquired from the memory card 3.

  Thus, on the road system side, the total number of data blocks A and the number of received data blocks C are compared, and transfer success / failure of all operation data when passing through the communication area AR is determined. If the transfer is unsuccessful, for example, an alarm is output by a buzzer (not shown) connected to the PC 22. Therefore, since it is possible to reliably know whether or not all the operation data has been transferred on the road system side, appropriate post-processing for transferring all the operation data becomes possible.

  Thus, according to the first embodiment, the road system side compares the total number of data blocks A with the number of received data blocks C, and if the number of blocks does not match, the stored received operation is stored. The data is discarded and all operation data is acquired from the memory card 3. Therefore, all operation data collected in a day can be reliably transferred to the road system side by a simple processing procedure without expanding the communication area.

[Second Embodiment]
FIG. 8 is a diagram showing data exchange between the in-vehicle system and the road system according to the second embodiment of the present invention. In the second embodiment, the communication sequence diagram between the in-vehicle system and the road system is the same as that of the first embodiment shown in FIG. Further, the processing procedure of the in-vehicle system is the same as that of the first embodiment shown in FIG. Further, since the processing procedure of the road system is substantially the same as that of the first embodiment shown in FIG. 7 described above, the description of the overlapping parts is omitted and only the differences are described. Furthermore, since the hardware configuration of the second embodiment is the same as that of the first embodiment, redundant description is omitted.

  Similar to the first embodiment, in the in-vehicle system 1 (2) of the second embodiment, the total data block number A and the transmitted data block number B are compared, and all the operation data when passing through the communication area AR are compared. Transfer success or failure is determined, and the determination result is output. For example, if the transfer is unsuccessful, the buzzer 15 is sounded.

  On the other hand, in the road system 2 (2) of the second embodiment, the total number of data blocks A and the number of received data blocks C are compared to determine the success or failure of transfer of all operation data when passing through the communication area AR. . If the transfer is unsuccessful, for example, an alarm is output by a buzzer (not shown) connected to the PC 22. Up to this point, the process is the same as in the first embodiment. However, in the second embodiment, instead of step S211 and step S212 of FIG. 7 described above, in the case of unsuccessful transfer, the PC 22 increases the number of data blocks next to the number of received data blocks to the number of all data blocks. Corresponding operation data is acquired from the memory card 3 and added to the received operation data stored in the memory of the PC 22.

  That is, as shown in FIG. 8, in the road system 2 (2) of the second embodiment, in the case of unsuccessful transfer, the received operation data corresponding to the number C of received data blocks is not discarded. For operation data, operation data corresponding to the number of data blocks C + 1 to the number of all data blocks A after the number C of received data blocks acquired from the memory card 3 (corresponding to the number of blocks AC in FIG. 8). Data).

  Thus, according to the second embodiment, on the road system side, the total number of data blocks A and the number of received data blocks C are compared, and if the number of blocks does not match, only the remaining operation data is stored in the memory. Since the data is acquired from the card 3, the processing time on the road system side can be greatly shortened.

  In the first and second embodiments, the unit of the data block is set for each business. However, other than this, the data blocks may be grouped together or divided by time units such as half a day or one hour. Further, when the wireless transfer could not be performed, all the operation data was uploaded to the road system offline, but conversely, downloading to the in-vehicle system can be performed in the same manner.

[Third Embodiment]
FIG. 9 is a communication sequence diagram between the in-vehicle system and the road system according to the third embodiment of the present invention. FIG. 10 is a diagram showing data exchange between the in-vehicle system and the road system according to the third embodiment of the present invention. FIG. 11 is a flowchart showing the processing procedure of the road system according to the third embodiment of the present invention. FIG. 12 is a flowchart showing a processing procedure of the in-vehicle system according to the third embodiment of the present invention.

In the third embodiment, a sightseeing bus is assumed as the vehicle CR shown in FIG. 1, and the vehicle CR to be returned after finishing the work passes through the gate GT at the premises entrance of the bus office. An example is shown in which operation data for the next day from the road system 2 to the in-vehicle system 1, for example, an operation plan composed of data blocks for every hour is distributed. In the third embodiment, since the sightseeing bus is assumed as the vehicle CR, the in-vehicle system 1 does not have the taximeter 12. Further, the data flow is in the opposite direction to the first embodiment and the second embodiment.

  In FIG. 10, A indicates the total number of data blocks on the transmitting side (on the road system side), B indicates the number of transmitted data blocks, and C indicates the number of transmitted data blocks on the receiving side (on-vehicle system side). And it shall transfer sequentially from the head block.

  As shown on the right side of FIG. 9, in the road system 2 (3) of the third embodiment, the operation plan (the operation data for the next day, hereinafter simply referred to as operation data) is converted into data blocks as shown in FIG. When the vehicle CR enters the communication area AR, the total number of data blocks A is transmitted (step T232). Subsequently, when the first block is transmitted (step T233), the number of transmitted data blocks B is counted (step T234). When the second block is transmitted (step T235), the number of transmitted data blocks B is counted (step T234). T236), the number B of transmitted data blocks is counted up. When the vehicle CR leaves the communication area AR and ends communication (step T237), the total data block number A and the transmitted data block number B are compared (step T238), and the transfer result is determined (step T239). .

  As shown on the left side of FIG. 9, in the in-vehicle system 1 (3) of the third embodiment, when the vehicle CR enters the communication area AR (step T131), the total number of data blocks A is received (step T132). When the first block is received (step T133), the number C of received data blocks is counted (step T134). When the second block is received (step T135), the number C of received data blocks is counted (step T136). The number C of received data blocks is counted up. When the vehicle CR leaves the communication area AR and ends the communication (step T137), the total data block number A and the received data block number C are compared (step T138), and the transfer result is determined (step T139).

  The processing procedure of the road system 2 (3) shown in FIG. 9 will be supplementarily described with reference to the flowchart of FIG. 11. First, the total number of data blocks A and the number of transmitted data blocks B are set to 0 (step S231). The next day's operation data is blocked and stored in the memory of the PC 22 (step S232), and the total number of data blocks A is counted (step S233).

  When the in-vehicle system 1 (3) enters the communication area AR (Y in step S234), unless the in-vehicle system 1 (3) is in the communication area AR and the communication ends (N in step S239), the data blocks are sequentially transmitted from the head. In step S236, the number B of transmitted data blocks is counted up (step S237), and the transmitted data block is erased (step S238).

  When the in-vehicle system 1 (3) exits the communication area AR and terminates communication (Y in step S239), the total number of data blocks A is compared with the number of transmitted data blocks B, and the number of both blocks matches (step S239). Y in S240), it is determined that the transfer is successful (step S241), and the series of processing is terminated. On the other hand, the total number of data blocks A and the number of transmitted data blocks B are compared. If the number of blocks does not match (N in step S240), it is determined that the transfer is unsuccessful (step S242). A buzzer (not shown) is sounded (step S243), and the remaining operation data stored in the memory of the PC 22 is transferred to and stored in the memory card 3 (step S244), and the series of processes is terminated.

  Further, the processing procedure of the in-vehicle system 1 (3) shown in FIG. 9 will be supplementarily described with reference to the flowchart of FIG. 12. First, the total data block number A and the received data block number C are set to 0 (step S131). ) Until the communication is completed (N in step S136), the total number of data blocks A is received (step S133). Every time a data block is received (Y in step S133), the received data block is stored in the in-vehicle memory 14 Then, the number C of received data blocks is counted up (step S135).

  When communication is completed (Y in step S136), the total number of data blocks A and the number of received data blocks C are compared (step S137). If the number of both blocks matches (Y in step S138), it is determined that the transfer is successful. (Step S139), and a series of processing ends. On the other hand, the total number of data blocks A and the number of received data blocks C are compared. If the number of blocks does not match (N in step S138), it is determined that the transfer is unsuccessful (step S140), and the remaining data is transferred by offline transfer. (Step S141), the operation data in the in-vehicle memory 14 and the remaining operation data by offline transfer are combined (step S142), and the series of processing ends.

  In the third embodiment, when all the operation data is unsuccessfully transferred, the in-vehicle system 1 (3) discards the received operation data corresponding to the received data block number C as shown in FIG. Without regard to this operation data, the operation data corresponding to the number of data blocks C + 1 to the number A of all data blocks after the received data block number C acquired from the memory card 3 is the remaining operation data (see FIG. In FIG. 10, data indicated by diagonal lines) are added and combined.

  Thus, according to the third embodiment, on the road system side, the operation data corresponding to the transmitted data block number B is deleted from the memory of the PC 22, and on the in-vehicle system side, the total data block number A and the received data are deleted. If the number of blocks does not match when compared with the number of blocks C, only the remaining operation data is obtained from the memory card 3, so the processing time for data transfer on both the road system side and the in-vehicle system side is reduced. The effect that it can be shortened is also added.

  In the third embodiment, the unit of the data block is every hour, but it may be divided by a time unit such as 30 minutes or 2 hours, or an event such as between one tourist spot and another tourist spot. It may be divided every time. In the third embodiment, data that could not be wirelessly transferred was downloaded to the in-vehicle system offline, but conversely, uploading to the road system can be performed in the same manner.

[Modification]
FIG. 13 is a communication sequence diagram between the in-vehicle system and the road system according to a modification of each of the above embodiments of the present invention. FIG. 14 is a diagram showing a data structure of a modification of FIG. The hardware configuration of this modification is the same as that of the first embodiment.

  In this modification, as shown in FIG. 14, an address is assigned to the collected operation data and stored in the in-vehicle memory 14. For example, the first address of the data indicating the boarding time of the first business is 000001, the first address of the data indicating the departure time of the first business is 000002, and the top address of the data indicating the boarding location of the first business Is 000003, the first address of the data indicating the first business drop-off location is 000004, the first address of the data indicating the travel distance of the first business is 000005,.

As shown on the left side of FIG. 13, in the in-vehicle system 1 (4) of the modified example, when entering the communication area AR (step T141), the address A of the final data is transmitted (step T142). Subsequently, the address 000001 of the first data is transmitted (step T143), the address 000002 of the second data is transmitted (step T144), and so on, and the address K of the nth data is transmitted (step T145). ). When the communication area AR is exited and communication is terminated (step T146), the address A of the final data is compared with the address K of the transmitted data (step T147), and the transfer result is determined (step T148).

  Further, as shown on the right side of FIG. 13, the road system 2 (4) of the modified example receives the address A of the final data (step T241), receives the address 000001 of the first data (step T242), The second data address 000002 is received (step T243), and the nth data address K is received (step T244). When communication ends (step T245), the address A of the received final data and the address K of the received data are compared (step T246), and the transfer result is determined (step T247). The determination of the transfer result may use the amount of data transmitted (received) with respect to the total amount of data scheduled to be transmitted. Further, the processing after the determination is the same as that in each of the above embodiments.

  As described above, according to the modification, it is possible to separate the transfer success data and the transfer unsuccessful data in more detail by using the address. The effect that can be shortened more is also added.

  The relationship between the transmission side and the reception side shown in the above embodiments and modifications, the in-vehicle system, and the road system may be reversed. That is, the transmission side may be an in-vehicle system and the reception side may be a road system, and conversely, the transmission side may be a road system and the reception side may be an in-vehicle system.

  The offline transfer means is not limited to the memory card 3, but may be a flash memory such as SmartMedia (registered trademark), an IC card, a floppy (registered trademark) disk, or the like. Further, the in-vehicle system and the PC may be directly connected by a wired cable. Further, instead of the in-vehicle memory, a memory card for offline transfer inserted in the card R / W in advance may be used. In addition to the taxi and the sightseeing bus exemplified in the embodiment, the vehicle equipped with the in-vehicle system may be a route bus, a truck, a tank truck, a road maintenance vehicle, or the like. Moreover, in each embodiment, although the 5.8 GHz band frequency was utilized, if it is possible to perform spot area type road-to-vehicle communication, other frequencies and carriers may be used.

[Fourth Embodiment]
By the way, as shown in the first and second embodiments, when data is transferred from the in-vehicle system to the road system, an alarm is issued when the transfer is unsuccessful, but there is still room for improvement. That is, an alarm at the time of unsuccessful transfer is issued immediately after the vehicle CR such as a taxi passes through the gate GT at the entrance of the premises, but in practice, the vehicle CR is moved to a predetermined parking place and the crew member When getting off, the memory card 3 is extracted from the card R / W 16 in order to completely transfer all data. However, at the time of getting off, it is assumed that the warning at the time of unsuccessful transfer is forgotten, and the crew member returns to the office with the memory card 3 still attached to the card R / W 16. The fourth embodiment solves this point and enhances the practicality.

  FIG. 15 is a block diagram showing a hardware configuration of the in-vehicle system and the road system according to the fourth embodiment of the present invention. FIG. 16 is a flowchart showing a forget-to-transfer alarm process according to the fourth embodiment of the present invention.

In the fourth embodiment, the presupposed system is basically the same as the system shown in FIG. 1 and FIG. 2, but the in-vehicle system 1 shown in FIG. As shown by 1 '. That is, in the in-vehicle system 1 ′ according to the fourth embodiment, an auxiliary power supply 17 and an in-vehicle system 1 ′ that performs a later-described transfer forgetting alarm process in addition to the processes performed by the in-vehicle system 1 shown in FIG. 2 are newly installed. Has been.

  The auxiliary power source 17 is, for example, a small dry battery or a secondary battery. When using a secondary battery, it is preferable to charge from the vehicle-mounted battery 18. The auxiliary power supply 17 is instructed to the vehicle-mounted control unit 11 ′ and supplies necessary drive power to each unit of the vehicle-mounted system 1 ′ instead of the vehicle-mounted battery 18 when the ignition switch (SW) is OFF. In addition, the same code | symbol is attached | subjected to the other part which is common in the vehicle-mounted system 1 of FIG. 2, and the overlapping description is abbreviate | omitted. Further, the configurations of the road system 2 and the memory card 3 in FIG. 15 are as shown in FIG.

  Further, the in-vehicle control unit 11 ′ performs a forget-to-transfer alarm process as shown in FIG. 16 in addition to the process performed by the in-vehicle system 1 shown in FIG. That is, in this transfer forgotten alarm process, as long as the ignition switch SW is ON (N in step S154), for example, the transfer success / failure determination result performed in the processing procedure of FIG. 6 is monitored. When the determination result indicates that the transfer is successful, the transfer success flag stored in the in-vehicle memory 14 is set to ON (step S152), and when the transfer result is unsuccessful, the transfer success flag is set to OFF (step S153).

  Next, when the ignition switch SW is turned off (Y in step S154), the auxiliary power supply 17 is activated (step S155), whether or not a memory card is installed is determined (step S156), and whether or not the transfer success flag is ON / OFF is determined. (Step S157). If the memory card is installed (Y in step S156) and the transfer success flag is OFF (Y in step S157), the buzzer 15 or the like outputs a transfer forget alarm, otherwise (step S156). N or N in step S157), the series of processes is terminated.

  Note that it is preferable that the buzzer sound indicating the transfer forgetting alarm has a different tone from the buzzer sound indicating the transfer failure. Further, it is more preferable to use a visual alarm using an LED or LCD (not shown). Further, the ON / OFF detection of the ignition switch SW in step S154 is an example for detecting that the power supply from the in-vehicle battery 18 to the in-vehicle system 1 'is stopped, and other detection methods may be used.

As described above, according to the fourth embodiment, when the data transfer is unsuccessful and the power supply from the in-vehicle battery 16 is stopped in a state where the memory card 3 is mounted, the auxiliary power supply 17 is stopped. using the transfer forgetting alarm for you alarm transfer forgetting is output. Therefore, the post-processing for transferring all the operation data is surely prompted.

  As described above, according to the embodiment of the present invention, it is possible to reliably know whether or not all the operation data has been transferred on the transmission side and the reception side. Post processing becomes possible. Further, all operation data can be reliably transferred to the receiving side without expanding the communication area. That is, the vehicle does not need to adjust the passing speed of the communication area depending on the amount of transmission data, and convenience and system throughput are improved. Furthermore, since the communication area and communication method may be the same as before, reliable data transfer can be realized using a simple system.

It is a figure which shows the structure of the whole system common to each embodiment and modification of this invention. It is a block diagram which shows the hardware constitutions of a vehicle-mounted system and a road system common to the 1st-3rd embodiment and modification of this invention. It is a figure which illustrates the content of the vehicle-mounted memory based on 1st and 2nd embodiment of this invention. It is a communication sequence diagram between a vehicle-mounted system and a road system based on 1st Embodiment of this invention. It is a figure showing exchange of data between an in-vehicle system and a road system concerning a 1st embodiment of the present invention. It is a flowchart which shows the process sequence of the vehicle-mounted system based on 1st Embodiment of this invention. It is a flowchart which shows the process sequence of the road system based on 1st Embodiment of this invention. It is a figure which shows the exchange of the data between a vehicle-mounted system and a road system based on 2nd Embodiment of this invention. It is a communication sequence diagram between a vehicle-mounted system and a road system based on 3rd Embodiment of this invention. It is a figure which shows the exchange of the data between a vehicle-mounted system and a road system based on 3rd Embodiment of this invention. It is a flowchart which shows the process sequence of the road system based on 3rd Embodiment of this invention. It is a flowchart which shows the process sequence of the vehicle-mounted system based on 3rd Embodiment of this invention. It is a communication sequence diagram between a vehicle-mounted system and a road system based on the modification of each said embodiment of this invention. It is a figure which shows the data structure of the modification of FIG. It is a block diagram which shows the hardware constitutions of the vehicle-mounted system and road system based on 4th Embodiment of this invention. It is a flowchart which shows the transfer forget alarm process based on 4th Embodiment of this invention. It is a graph which shows the relationship between the passing speed of a communication area, and the data amount which can be transferred.

DESCRIPTION OF SYMBOLS 1 In-vehicle system 2 Road system 3 Memory card 11 In-vehicle control part 12 Taximeter 13 In-vehicle radio 14 In-vehicle memory 15 Buzzer 16 Card R / W
21 Roadside radio 22 PC
23 Card R / W

Claims (5)

In-vehicle system and road system for performing spot area type road-vehicle communication, when the vehicle system has passed the predetermined communication area, is the one from the transmission side is either one of the in-vehicle system and the road system to the recipient, a determining data transfer success determination method whether to transfer all the operational data,
(B) On the transmitting side ,
Block all the operation data and store it in the sending memory,
Send the total number of data blocks of all the operation data,
Count the number of transmitted data blocks indicating the number of transmitted operation data blocks of all the operation data,
Comparing the number of transmitted data blocks with the number of all data blocks indicating the number of blocks of all operation data, determining the success or failure of transfer of all operation data when passing through the communication area; and
Output the determination result obtained in this way ,
(B) The receiving side receives the total number of data blocks, counts the number of received data blocks indicating the number of blocks of the received operation data, and determines the number of received data blocks and the total number of data blocks. In comparison, determine the success or failure of transfer of all the operation data when passing through the communication area, and
(C) When transfer success / failure of all the operation data indicates unsuccessful transfer, the operation data is stored in a portable storage medium, and offline transfer is selected instead of online transfer. Data transfer success / failure determination method . A data transfer method using the data transfer success / failure determination method according to claim 1 ,
(A) On the transmission side , when the number of transmitted data blocks and the total number of data blocks do not match, the total operation data is stored in a portable storage medium, and
(B) On the receiving side ,
Temporarily store received operation data out of all the operation data,
Counting the number of received data blocks indicating the number of blocks of the received operation data; and
When the number of received data blocks does not match the number of all data blocks, the received operation data stored is discarded, and the all operation data is acquired from the portable storage medium. Data transfer method. A data transfer method using the data transfer success / failure determination method according to claim 1 ,
(B) On the transmitting side ,
If the number of transmitted data blocks and the number of all data blocks do not match, store all the operation data in a portable storage medium, and
(B) On the receiving side ,
Temporarily store received operation data out of all the operation data,
Counting the number of received data blocks indicating the number of blocks of the received operation data; and
When the number of received data blocks does not match the number of all data blocks, operation data corresponding to the number of all data blocks from the number of data blocks next to the number of received data blocks is stored in the portable storage medium. And transferring it to the received operation data that has been stored. A data transfer method using the data transfer success / failure determination method according to claim 1 ,
(B) On the transmitting side ,
Erasing operation data corresponding to the number of transmitted data blocks from the transmission side memory,
When the number of transmitted data blocks does not match the number of all data blocks, only the operation data corresponding to the number of all data blocks from the number of data blocks next to the number of transmitted data blocks is portable storage medium stored in, and,
(B) On the receiving side ,
Temporarily store received operation data out of all the operation data,
Counting the number of received data blocks indicating the number of blocks of the received operation data; and
When the number of received data blocks does not match the number of all data blocks, operation data corresponding to the number of all data blocks from the number of data blocks next to the number of received data blocks is stored in the portable storage medium. acquired from the data transfer method according to claim <br/> be added to the received operation data are stored. The determination result indicates the unsuccessful transfer, and, in a state where the portable storage medium is mounted, when the power supply from the vehicle battery is stopped, because the you alarm transfer forgetting all operational data 5. The forgetting to transfer alarm is output by the in-vehicle system as the transmitting side using an auxiliary power source mounted in the in-vehicle system. 6. Data transfer method.

Images