JP2003030024A - Method for recording data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for recording data by which data update is surely performed. SOLUTION: When the data is newly inputted from a data input part 16, a CPU 11 performs a recording processing to record the inputted data in a recording area of a memory 13. The memory 13 has two recording areas capable of recording two kinds of data. And in the case of the recording processing, the CPU 11 preferentially records the inputted data irrespective of presence/ absence of a free area in which the inputted data can be recorded in the recording area. In addition, when the existing data exists in the recording area, the CPU 11 sorts the existing data and the inputted data into two kinds of types from relation between the current date and time and date and time information of the existing data and the inputted data. And the CPU 11 determines the recording area in which the inputted data should be recorded according to presence/absence of the existing data and the relation between the types of the inputted data and the existing data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording method in a data processing device embodied as, for example, a fare indicator for a bus.

[0002]

2. Description of the Related Art Data including effective start time is recorded,
As a specific example of the data processing device that performs processing based on the data on the condition that the current date and time has reached the valid start time of the data, there is a bus fare indicator or the like.

Conventionally, this type of fare indicator has a recording section having a recording area capable of recording fare data including date and time information indicating an effective start date and fare information, and a control section for performing processing based on the fare data. It has and. The recording unit is provided with two recording areas capable of recording two types of fare data, and the control unit performs processing based on the fare data whose current date and time has reached the effective start date. In addition,
When the current date and time has reached the effective start date of both fare data, the control unit performs processing based on the fare data including the effective start date close to the current date and time. Therefore, for example, it is possible to previously record the fare data in which the future fare revision date is set as the effective start date together with the current fare data. In this way, the fare system based on the current fare data is displayed until the fare revision date, and after the fare revision date, the display automatically switches to the fare system based on the new fare data.

Therefore, the control unit, when new fare data is input, when there is an empty area in the recording unit,
The input data is recorded in the empty area. On the other hand, when there is no free area in the recording unit, a person checks the contents of already recorded existing data, and manually rewrites the existing data determined to be unnecessary to the input data. When attempting to do this automatically, the control unit first calculates the difference between the valid start date of the input data and the current date and time, and at the same time calculates the valid start date of the existing data already recorded and the current date and time. Compare the differences between. Then, if the difference between the valid start date of the input data and the current date and time is smaller than the difference between the valid start date of the existing data and the current date and time, the control unit rewrites the existing data into the input data. Further, the control unit prohibits recording of the input data if the difference between the valid start date of the input data and the current date and time is larger than the difference between the valid start date of the existing data and the current date and time. That is, the control unit validates the existing data when the valid start date of the existing data is closer to the current date and time than the valid start date of the input data.

[0005]

By the way, if there is an error in the existing data, it is necessary to update the fare data by re-inputting the correct data.

However, in the conventional fare display, if fare data including an erroneous effective start date is recorded as existing data, the input data must be closer to the current date and time than the erroneous effective start date. There arises a problem that the data cannot be updated.

Further, it is possible for a human to rewrite the input data by checking the contents of the existing data and judging that they are unnecessary.
It is time-consuming and may cause a new human error.

The present invention has been made in view of such circumstances, and an object thereof is to provide a data recording method capable of surely updating data.

[0009]

In order to solve the above-mentioned problems, in the invention described in claim 1, the recording means having two recording areas each capable of recording the data including the effective start time, and the present invention In a method of recording data in a data processing device, which comprises a control means for performing data processing based on the data on the condition that the date and time has reached the valid start time of the data, the control means receives the data. At this time, regardless of whether or not there is a vacant area in which the input data can be recorded in the recording area, a recording process of preferentially recording the input data in the recording area is performed.

According to a second aspect of the present invention, in the data recording method according to the first aspect, when there is existing data already recorded in the recording area, the control means is
The data is classified into two types based on whether the current date and time has reached the effective start time, the type of the input data is compared with the type of the existing data, and the input data is based on the comparison result. The gist is to determine the recording area in which is recorded.

According to a third aspect of the present invention, in the data recording method according to the second aspect, when existing data of the same type as the input data exists in any one of the recording areas, The gist of the control means is to rewrite the existing data of the same type into the input data.

According to a fourth aspect of the invention, in the data recording method according to the second or third aspect, when the existing data of the same type as the input data exists in each of the recording areas, the control is performed. Means is to delete the existing data together and record the input data in one of the recording areas.

According to the invention described in claim 5, claims 2 to 4 are provided.
In the method of recording data according to any one of 1 to 3, when the existing data of a type different from the input data exists in one of the recording areas and the other recording area is an empty area, the control means The main point is to record the input data in the empty area.

According to the invention of claim 6, the inventions of claims 2 to 5
In the method of recording data according to any one of 1 above, when existing data of a type different from the input data exists in each of the recording areas, the control means controls the effective start time of the existing data and the current date and time. The point is to compare existing data whose effective start time is far from the current date and time with the input data.

The "action" of the present invention will be described below. According to the invention of claim 1, when data is input, the input data is preferentially recorded in the recording area regardless of whether or not there is a free area in which the data can be recorded. It That is, not only when there is a free area in the recording area but also when there is no free area, at least one of the already recorded existing data is deleted and the input data is written in that free area. Is recorded. Therefore, it is possible to reliably update the data.

According to the second aspect of the invention, the control means, based on whether or not the current date and time has reached the valid start time, when the existing data already recorded in the recording area exists. The data are classified into two types. Then, the recording area in which the input data is to be recorded is determined based on the type of the input data and the type of the existing data.
That is, the input data is recorded in the recording area in consideration of the relationship between the valid start time of the existing data and the current date and time. Therefore, it is possible to record the input data in consideration of the valid start time of the existing data and the current date and time.

The effective start time is year, month, week,
It shows the concept of time such as day, hour, minute, second, etc. For example, the effective start date composed of a date such as "○ month ○ day" or the effective start date composed of a date and time such as "○ month ○ day ○ hour" Defined as indicating the date and time.

According to the third aspect of the present invention, when the data of the same type as the input data is recorded in any one of the recording areas, the existing data of the same type is rewritten into the input data. To be Normally, when the existing data has an error, the same type of data as the existing data is input. Therefore, by rewriting the existing data of the same type as the input data, it is possible to surely delete the incorrect data. Therefore, it is possible to prevent processing from being performed based on incorrect data.

According to the fourth aspect of the present invention, when data of the same type as the input data is recorded in each recording area, the recorded data is deleted together and any of the input data is deleted. It is recorded in one recording area. Therefore, only the input data is recorded in the recording area. Normally, even if two data of the same type are recorded, the control means performs processing based on one of them, so the other data is unnecessary. Therefore, unnecessary data can be surely deleted, and processing is not performed based on unnecessary data.

According to the fifth aspect of the present invention, when data of a type different from the input data is recorded in one of the recording areas and the other recording area is an empty area,
Input data is recorded in the empty area. Usually, when data of a type different from the input data is recorded in one of the recording areas, the existing data is necessary data.
Therefore, only the necessary data is recorded in the recording area.

According to the sixth aspect of the invention, when data of a type different from the input data is recorded in each recording area, the effective start time of the recorded data and the current date and time are The data that is compared and the valid start time of which is different from the current date and time is rewritten to the input data. Normally, when two pieces of data of the same type are recorded, the control means performs processing based only on data whose effective start time is close to the current date and time. That is, data whose effective start time is far from the current date and time is unnecessary.
Therefore, by rewriting unnecessary data into input data, only necessary data can be recorded in the recording area.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment in which the present invention is embodied in a fare indicator for a bus will be described in detail below with reference to FIGS.

As shown in FIG. 1, the fare indicator 1 comprises a display panel 2 and a control device 3. The display panel 2 is arranged at a front position in a bus car (not shown) at a location where passengers can easily see it. As shown in the figure, in the present embodiment, on the surface of the display panel 2, there is provided a first display portion 2a which is composed of dot LEDs and which displays a destination, a stop name and the like. Further, a plurality of numbers (here, 1 to 20) are attached to the surface of the display board 2, and a plurality of 7-segment LEDs are provided at positions corresponding to the numbers.
A plurality of (here, 20) second display portions 2b configured by are provided. Each number corresponds to the number attached to the numbered ticket issued inside the vehicle when the vehicle is boarded, and the fare is displayed on each second display portion 2b. That is, the display panel 2 displays the fare corresponding to the number attached to the numbered ticket.

The control device 3 is arranged around the driver's seat and has a CPU 11 as a control means, a ROM 12, a memory 13 as a recording means, and a real time clock (RTC) 1.
4, an interface 15 and a data input unit 16. The ROM 12, the memory 13, the RTC 14, the interface 15, and the data input unit 16 are electrically connected to the CPU 11. Further, the interface 15 and the display panel 2 are electrically connected.

The memory 13 is composed of a non-volatile memory such as a flash memory, and has two recording areas A and B as shown in FIG. Data including date and time information and display information can be recorded in these recording areas A and B, respectively. More specifically, as shown in FIG. 2, the memory 13 stores data α including date / time information α and display information α, date / time information β different from the date / time information α and data β including display information β different from the display information α. And can be recorded. That is, the memory 13 can record two types of data. The date and time information is information indicating the effective start date of the data, and the display information is information indicating a display target such as a destination and a stop name.

The RTC 14 is an IC chip that counts the current date and time, and inputs the current date and time to the CPU 11. The data input unit 16 is configured such that a recording medium such as a memory card or a memory cassette (not shown) can be attached and detached. Then, the data input unit 16 reads the data recorded on the recording medium when the recording medium is mounted, and inputs the data to the CPU 11. In the present embodiment, the data input unit 16
Is configured so that a recording medium such as an IC card that can read data in a contactless manner can be attached and detached.

A predetermined control program for controlling the display on the display panel 2 is stored in the ROM 12, and the CPU 11 carries out a display process and a data recording process according to the control program. Then, during the display process, the CPU 11 outputs a display signal based on the data recorded in the memory 13 and the current date and time. The display signal is input to the display panel 2 via the interface unit 15, and the display units 2a and 2b are displayed based on the display signal.

In this way, the CPU 11 performs the display processing (data processing) based on the data having the effective start date reaching the current date and time and having the date and time information indicating the effective start date closest to the current date and time. . For details, see Figure 3.
As shown in (a), when two existing data D1 and D2 exist in the memory 13, the CPU 11 first compares the current date and time with the valid start date of each existing data D1 and D2. Note that, here, it is assumed that the valid start date of the existing data D2 is set in the future rather than the valid start date of the existing data D1. Then, the CPU 11 determines that there is no usable data at present under the period T1 until the current date and time reaches the valid start date of the data D1. Therefore, during this period T1, the CPU 11 "displays no valid data" on the first display portion 2a of the display panel 2.
Display an error message such as. Also, the CPU 11
Is the current date and time from the effective start date of data D1 to data D
The period T2 until reaching the effective start date of 2 is the data D1.
Is used as the use data, and the display control of the display panel 2 is performed based on the data D1. Then, the CPU 11 controls the display of the display panel 2 based on the data D2 by using the data D2 as the usage data for the period T3 after the current date and time reaches the valid start date of the data D2. That is, when the current date and time reaches the valid start date of the data D2, the CPU 11 updates the usage data from the data D1 to the data D2. For this reason, for example, when there is a revision of the fare in the future, if the fare revision date is used as date and time information and the fare data after the revision is used as display information is recorded in the memory 13 in advance, the current date and time is revised. When the date is reached, the fare data will switch automatically.
Therefore, it is not necessary to manually update the fare data on the date of revision, operability is improved, and forgetting to update is surely prevented.

Further, when new data is input from the data input section 16, the CPU 11 performs a recording process for recording the input data in the recording areas A and B of the memory 13. When new data is input, the CPU 11 first determines whether or not there is already recorded data (existing data) in each of the recording areas A and B. Then, when the existing data exists, the CPU 11 determines whether the date and time information of the existing data is before the current date and time or is future than the current date and time. As a result, the CPU 11 classifies existing data having date and time information before the current date and time as permission data, and existing data having date and time information future than the current date and time as standby data, into two types. Then, the CPU 11 performs the recording process of the input data in different modes according to the presence or absence of the existing data and the relationship between the type of the input data and the type of the existing data. Therefore, the recording process of the input data performed by the CPU 11 will be described in detail with reference to FIGS. This recording process is executed based on the program stored in the ROM 12. Further, this program may be recorded in a computer-readable recording medium other than the ROM 12. The following items <1> to <
FIG. 10 shows a list of recording processing modes of the input data D3 in the case of 3>. It should be noted that although all patterns are described here for the sake of easy understanding of the present invention, some of the patterns include recording processing under a situation that cannot occur as long as normal processing is performed.
This is for handling the case where the CPU 11 runs out of control and incorrect data is input, or the RTC 14 is reset to a normal state after data is input in a wrong state. Is.

<1> When existing data does not exist in the recording areas A and B. In this case, as shown in FIG. 4, the CPU 11 selects one of the date / time information P1 past the current date / time, the date / time information P2 same as the current date / time, and the date / time information P3 future from the current date / time as shown in FIG. The input data D3 is recorded in the recording area A regardless of the date and time information.
Therefore, when the recording process of the input data D3 is completed, the input data D3 is recorded in the recording area A of the memory 13.
Nothing is recorded in the recording area B.

<2> When existing data exists in one of the recording areas A and B and no existing data exists in the other. (2-1) When the permission data D1 exists in the recording area A.

In this case, as shown in FIG. 5 (a), the existing data D1 which is the permission data is recorded in the recording area A in the initial state, and nothing is recorded in the recording area B. .

When the input data D3 is input, the CPU 11 determines whether the input data D3 is permission data or standby data. That is, the CPU 11 compares the date and time information of the input data D3 with the current date and time, and if the date and time information of the input data D3 is before the current date and time, classifies the input data D3 as permission data. If the date and time information of the input data D3 is in the future than the current date and time, the CPU 11 classifies the input data D3 as standby data.

When the input data D3 is permission data, that is, when the input data D3 is of the same type as the existing data D1, the CPU 11 rewrites the existing data D1 into the input data D3. Therefore, as shown in the figure, when the input data D3 having the date and time information P1 to P4 indicating the date and time before the current date and time is input, the existing data D1 recorded in the recording area A is deleted, Input data D3 is recorded in the recording area A.
More specifically, when the input data D3 has date / time information P1 that is earlier than the date / time information of the existing data D1, the input data D3 is the same date / time information P2 as the date / time information of the existing data D1.
If the input data D3 has date / time information P3 indicating the date / time between the current date / time and the date / time information of the existing data D1, the input data D3 has date / time information P4 indicating the same date / time as the current date / time. In any of the above cases, the input data D3 is recorded in the recording area A. In these cases, nothing is recorded in the recording area B. Therefore, when the recording process of the input data D3 is completed, the memory 13 stores the input data D in the recording area A.
3 is recorded, and the recording area B becomes a free area.

If the input data D3 is standby data, that is, if the input data D3 is of a type different from the existing data D1, the CPU 11 records the input data D3 in the recording area B which is a free area. I do. Therefore, as shown in the figure, when the input data D3 having the date and time information P5 indicating the date and time that is later than the current date and time is input, the input data D3 is recorded in the recording area B.
Recorded in. The CPU 11 keeps the existing data D1 recorded in the recording area A in the recorded state. Therefore, when the recording process of the input data D3 is completed, the existing data D1 is recorded in the recording area A and the input data D3 is recorded in the recording area B of the memory 13.

(2-2) When the permission data D1 exists in the recording area B. In this case, as shown in FIG. 5B, nothing is recorded in the recording area A in the initial state,
The existing data D1 which is the permission data is recorded in the recording area B.

When the input data D3 is input, the CPU 11 classifies the input data D3. Thus, when the input data D3 is permission data, that is, when the input data D3 is the same type of data as the existing data D1, the CPU 11 deletes the existing data D1 recorded in the recording area B and The process of recording D3 in the recording area A is performed. Therefore, as shown in the figure, the date and time information P1 to 1 indicating the date and time before the current date and time.
When the input data D3 having P4 is input, the existing data D1 recorded in the recording area B is deleted, and the input data D3 is recorded in the recording area A. Therefore, when the recording process of the input data D3 is completed, the input data D3 is recorded in the recording area A of the memory 13, and the recording area B becomes a free area.

If the input data D3 is the standby data, that is, if the input data D3 is of a different type from the existing data D1, the CPU 11 records the existing data D1 recorded in the recording area B. As it is,
A process of recording the input data D3 in the recording area A which is a free area is performed. Therefore, as shown in the figure, when the input data D3 having the date / time information P5 indicating the date / time which is in the future than the current date / time is input, the input data D3 is recorded in the recording area A. Therefore, when the recording process of the input data D3 is completed, the memory 13 is in a state in which the input data D3 is recorded in the recording area A and the existing data D1 is recorded in the recording area B.

(2-3) When the standby data D1 exists in the recording area A. In this case, as shown in FIG. 6A, the existing data D1 which is the standby data is recorded in the recording area A in the initial state, and nothing is recorded in the recording area B.

When the input data D3 is input, the CPU 11 classifies the input data D3. As a result, when the input data D3 is permission data, that is, when the input data D3 is a different type of data from the existing data D1, the CPU 11 leaves the existing data D1 recorded in the recording area A in a recorded state. A process of recording the input data D3 in the recording area B, which is a free area, is performed. Therefore, as shown in the figure, when the input data D3 having the date and time information P1 and P2 indicating the date and time before the current date and time is input, the input data D3 is recorded in the recording area B.
Recorded in. Therefore, when the recording process of the input data D3 is completed, the memory 13 stores the existing data D in the recording area A.
1 is recorded, and the input data D3 is recorded in the recording area B.

When the input data D3 is the standby data, that is, when the input data D3 is the same type of data as the existing data D1, the CPU 11 determines that the existing data D3 is the same as the existing data D1.
The process of rewriting 1 into the input data D3 is performed. Therefore, as shown in the figure, when the input data D3 having the date and time information P3 to P5 indicating the date and time that is later than the current date and time is input, the existing data D recorded in the recording area A is input.
1 is deleted, and the input data D3 is recorded in the recording area A. More specifically, if the input data D3 has date and time information P3 closer to the current date and time than the date and time information of the existing data D1, and if the input data D3 has the same date and time information P4 as the date and time information of the existing data D1, the input data D3. , Whichever is later than the date / time information of the existing data D1, the existing data D1
Is rewritten with the input data D3, and the input data D3 is recorded in the recording area A. In these cases, nothing is recorded in the recording area B. Therefore, when the recording process of the input data D3 is completed, the memory 13
The input data D3 is recorded in the recording area A, and the recording area B becomes a free area.

(2-4) When the standby data D1 exists in the recording area B. In this case, as shown in FIG. 6B, nothing is recorded in the recording area A in the initial state,
The existing data D1 that is the standby data is recorded in the recording area B.

When the input data D3 is input, the CPU 11 classifies the input data D3. As a result, when the input data D3 is permission data, that is, when the input data D3 is a data of a type different from the existing data D1, the CPU 11 leaves the existing data D1 recorded in the recording area B in a recorded state. A process of recording the input data D3 in the recording area A which is a free area is performed. Therefore, as shown in the figure, when the input data D3 having the date and time information P1 and P2 indicating the date and time before the current date and time is input, the input data D3 is recorded in the recording area A.
Recorded in. Therefore, when the recording process of the input data D3 is completed, the memory 13 stores the input data D in the recording area A.
3 is recorded, and the existing data D1 is recorded in the recording area B.

When the input data D3 is standby data, that is, when the input data D3 is the same type of data as the existing data D1, the CPU 11 deletes the existing data D1 recorded in the recording area B and A process of recording the input data D3 in the recording area A is performed. Therefore, as shown in the figure, when the input data D3 having the date and time information P3 to P5 indicating the date and time that is later than the current date and time is input, the existing data D recorded in the recording area B is input.
1 is deleted, and the input data D3 is recorded in the recording area A. Therefore, when the recording process of the input data D3 is completed, the input data D3 is recorded in the recording area A of the memory 13, and the recording area B becomes a free area.

Therefore, the above items (2-1) to (2-
As described in 4), the existing data D1 of the same type as the input data D3 is stored in one of the recording areas A and B.
Is recorded, the CPU 11 performs a process of rewriting the existing data D1 into the input data D3. In addition,
As described in the item (2-2) and the item (2-4), the CPU 11 in the present embodiment, the input data D3.
Is preferentially recorded in the recording area A.

When existing data D1 of a type different from the input data D3 is recorded in one of the recording areas A and B, and the other recording area A or B is an empty area, CP
U11 performs a process of recording the input data D3 in the empty area.

<3> When existing data exists in both recording areas A and B. (3-1) When the relationship of date and time information is “recording area A <recording area B ≦ present” (past <future).

In this case, as shown in FIG. 7A, the existing data D1 which is the permission data is recorded in the recording area A in the initial state, and the date and time information closer to the current date and time than the date and time information of the existing data D1 is recorded. The existing data D2, which is the permission data including the above, is recorded in the recording area B. That is, here, the existing data D1 and D2 of the same type are recorded in the recording areas A and B, respectively.

When the input data D3 is input, the CPU 11 classifies the input data D3. As a result, when the input data D3 is permission data, that is, when the input data D3 is the same type of data as the existing data D1 and D2, the CPU 11 causes the recording areas A,
The existing data D1 and D2 recorded in B are both deleted and the input data D3 is recorded in the recording area A.
Therefore, as shown in the figure, when the input data D3 having the date and time information P1 to P6 indicating the date and time before the current date and time is input, the existing data D1 and D2 are deleted,
The input data D3 is recorded in the recording area A. More specifically, when the input data D3 has date and time information P1 that is earlier than the existing data D1, and when the input data D3 has the same date and time information P2 as the existing data D1, the input data D3
If the input data D3 has the same date / time information P4 as the existing data D2, the input data D3 has the same date / time information P3 as the date / time information between the existing data D1 and the existing data D2. In any of the case where the date and time information P5 indicating the date and time between the date and time information of the data D2 and the current date and time is included, and the case where the input data D3 includes the date and time information P6 indicating the same date and time as the current date and time. Also, the existing data D1 and D2 are deleted, and the recording area A
Input data D3 is recorded in. Therefore, the input data D
Upon completion of the recording process of No. 3, in the memory 13, the input data D3 is recorded in the recording area A, and the recording area B becomes a free area.

When the input data D3 is standby data, that is, the input data D3 is the existing data D1, D
If the data is of a type different from 2, the CPU 11
Of the existing data D1 and D2, the existing data having date and time information far from the current date and time is rewritten to the input data D3. In other words, in this case, since the existing data D1 has date and time information farther from the current date and time than the existing data D2, the CPU 11 deletes the existing data D1 recorded in the recording area A and inputs it. Data D3
Is recorded in the recording area A. For this reason, as shown in the figure, when the input data D3 having the date and time information P7 indicating the date and time later than the current date and time is input, the existing data D1 recorded in the recording area A is deleted, Recording area A
Input data D3 is recorded in. Therefore, the input data D
When the recording process of No. 3 is completed, the memory 13 is in a state in which the input data D3 (standby data) is recorded in the recording area A and the existing data D2 (permission data) is recorded in the recording area B.

(3-2) When the relationship of date and time information is "recording area B <recording area A≤present" (past <future). In this case, as shown in FIG. 7B, the existing data D1 that is the permission data is recorded in the recording area B in the initial state, and the existing data that is the permission data closer to the current date and time than the date and time information of the existing data D1. Data D2 is recording area A
It has been recorded in. That is, here, similar to the above item (3-1), the existing data D1 and D2 of the same type are recorded in the recording areas A and B, respectively.

When the input data D3 is input, the CPU 11 classifies the input data D3. As a result, when the input data D3 is permission data, that is, when the input data D3 has date and time information of the same type as the existing data D1 and D2, the CPU 11 performs the same as the above item (3-1). Perform processing. That is, the CPU 11
Deletes each existing data D1 and D2,
A process of recording the input data D3 is performed. Therefore, as shown in the figure, when the input data D3 having the date and time information P1 to P6 indicating the date and time before the current date and time is input, the existing data D1 and D2 are deleted and the input data D3 is deleted. Is recorded in the recording area A. Therefore, when the recording process of the input data D3 is completed, the input data D3 is recorded in the recording area A of the memory 13, and the recording area B becomes a free area.

When the input data D3 is standby data, that is, the input data D3 is the existing data D1, D
If the data is of a type different from 2, the CPU 11
The same processing as the above item (3-1) is performed. That is, CP
The U11 performs a process of rewriting the existing data having date / time information far from the current date / time among the existing data D1 and D2 into the input data D3. Even in this case, since the existing data D1 has date and time information farther from the current date and time than the existing data D2, the CPU 11 deletes the existing data D1 recorded in the recording area B and also inputs the data D3. Is recorded in the recording area B. Therefore, as shown in the figure, when the input data D3 having date and time information P7 indicating a date and time that is later than the current date and time is input, the existing data D1 recorded in the recording area B is deleted, The input data D3 is recorded in the recording area B. Therefore, when the recording process of the input data D3 is completed, the existing data D2 (permission data) is recorded in the recording area A of the memory 13.
The input data D3 (standby data) is recorded in the recording area B. That is, compared with the above item (3-1), the recording states of the existing data D2 and the input data D3 in the recording areas A and B have an opposite relationship.

(3-3) When the relationship of date and time information is "recording area A, B = present". In this case,
As shown in (c), existing data D1 that is permission data having the same date and time information as the current date and time in the initial state is recorded in the recording area A, and existing data having the same date and time information as the date and time information of the existing data D1. D2 is recorded in the recording area B.

Even in such a case, the CPU 11
If the input data D3 is the same type of data as the existing data D1 and D2, a process of deleting the existing data D1 and D2 and recording the input data D3 in the recording area A is performed. Therefore, as shown in the figure, the date and time information P before the current date and time
When the input data D3 having 1 and P2 is input, the existing data D1 and D recorded in the recording areas A and B are input.
2 is deleted, and the input data D3 is recorded in the recording area A. Therefore, when the recording process of the input data D3 is completed, the input data D3 is recorded in the recording area A of the memory 13, and the recording area B becomes a free area.

If the input data D3 is of a type different from the existing data D1 and D2, the CPU 11 rewrites the existing data recorded in the recording area B (here, the existing data D2) into the input data D3. I do. Therefore, as shown in the figure, when the input data D3 having date and time information P3 that is later than the current date and time is input, the existing data D2 recorded in the recording area B is deleted and the recording area is deleted. Input data D3 is recorded in B. This is because the recording area A is determined to be recorded with priority over the recording area B, and thus the data in the recording area B is considered to be less important. Therefore, when the recording process of the input data D3 is completed, the existing data D1 (permission data) is recorded in the recording area A of the memory 13.
The input data D3 (standby data) is recorded in the recording area B.

Therefore, the above items (3-1) to (3-)
As described in 3), when the existing data D1 and D2 of the same type as the input data D3 are recorded in the recording areas A and B, respectively, the CPU 11 causes the existing data D to be recorded.
The processing of deleting both 1 and D2 and recording the input data D3 in the recording area A is performed.

When existing data D1 and D2 of different types from the input data D3 are recorded in the respective recording areas A and B, the CPU 11 causes the existing data D3 to be recorded.
Among the data D1 and D2, the existing data D1 and D2 having date and time information far from the current date and time is rewritten to the input data D3.

(3-4) The relationship of the date and time information is "recording area A≤present <recording area B" (past <future). In this case, as shown in FIG. 8A, the existing data D1 which is the permission data is recorded in the recording area A in the initial state, and the existing data D2 which is the standby data is recorded in the recording area B.
Has been recorded. That is, here, different types of data are recorded in the recording areas A and B, respectively.

When the input data D3 is input, the CPU 11 classifies the input data D3. Accordingly, when the input data D3 is permission data, that is, when the input data D3 is the same type of data as the existing data D1, the CPU 11 rewrites the existing data D1 into the input data D3. Therefore, as shown in the figure, when the input data D3 having the date and time information P1 to P4 before the current date and time is input, the existing data D1 recorded in the recording area A is deleted and the recording area is deleted. A
Input data D3 is recorded in. More specifically, when the input data D3 has date and time information P1 that is earlier than the existing data D1, and when the input data D3 has the same date and time information P2 as the existing data D1, the input data D3 is the same as the date and time information of the existing data D1. The existing data D1 is deleted regardless of whether the input data D3 has the date and time information P4 indicating the same date and time as the current date and time. Then, the input data D3 is recorded in the recording area A. Therefore, during the recording process of the input data D3, the memory 13 is in a state in which the input data D3 (permission data) is recorded in the recording area A and the existing data D2 (standby data) is recorded in the recording area B.

If the input data D3 is standby data, that is, if the input data D3 is of the same type as the existing data D2, the CPU 11 determines that the CPU 11
Performs a process of rewriting the existing data D2 to the input data D3. For this reason, as shown in the figure, when the input data D3 having date and time information P5 to P7 that is later than the current date and time is input, the existing data D2 recorded in the recording area B is deleted, and The input data D3 is recorded in the recording area B. More specifically, when the input data D3 has date / time information P5 indicating the date / time between the current date / time and the date / time information of the existing data D2, the input data D3 is the existing data D3.
In the case where the input data D3 has the same date and time information P6 as that of the input data D3 and the input data D3 has date and time information P7 which is in the future than the existing data D2, the existing data D2 is deleted and the recording area B is deleted. Input data D3 is recorded.
Therefore, during the recording process of the input data D3, the memory 13 is in a state in which the existing data D1 is recorded in the recording area A and the input data D3 is recorded in the recording area B.

Therefore, when different types of existing data exist in the memory 13, the CPU 11 performs a process of rewriting the existing data D1 and D2 of the same type as the input data D3 into the input data D3.

(3-5) When the relationship of the date and time information is “recording area B ≦ present <recording area A” (past <future). In this case, as shown in FIG. 8B, existing data D1 that is permission data is recorded in the recording area B in the initial state, and existing data D2 that is standby data is recorded in the recording area A.
Has been recorded.

When the input data D3 is input,
As in the item (3-4) above, the CP also remains in this state.
U11 is the existing data D of the same type as the input data D3
A process of rewriting 1, D2 into the input data D3 is performed. Therefore, as shown in the figure, when the input data D3 having the date and time information P1 to P4 before the current date and time is input, the existing data D1 recorded in the recording area B is deleted, and the recording area is deleted. Input data D3 is recorded in B. Therefore, during the recording process of the input data D3, the memory 1
In No. 3, the existing data D2 is recorded in the recording area A and the input data D3 is recorded in the recording area B.

Further, the date and time information P that is future than the current date and time
When the input data D3 having 5 to P7 is input, the existing data D2 recorded in the recording area A is deleted and the input data D3 is recorded in the recording area A. Therefore, during the recording process of the input data D3, the memory 1
In No. 3, the input data D3 is recorded in the recording area A and the existing data D1 is recorded in the recording area B.

(3-6) The relationship of date and time information is "present <recording area A <recording area B" (past <future). In this case, as shown in FIG. 9A, the existing data D1 that is standby data is recorded in the recording area A in the initial state, and the standby data has date and time information that is in the future than the date and time information of the existing data D1. The existing data D2 is recorded in the recording area B.

When the input data D3 is input, the CPU 11 classifies the input data D3. Accordingly, when the input data D3 is permission data, that is, when the input data D3 is a data of a type different from the existing data D1 and D2, the CPU 11 causes the date and time far from the current date and time among the existing data D1 and D2. Processing for rewriting existing data having information to the input data D3 is performed. That is, in this case, since the existing data D2 has date and time information that is farther from the current date and time than the existing data D1, the CPU 11 deletes the existing data D2 recorded in the recording area B and inputs it. The data D3 is recorded in the recording area B. Therefore, as shown in the figure, the input data D3 having date and time information P1 and P2 before the current date and time
When is input, the existing data D2 recorded in the recording area B is deleted, and the input data D3 is recorded in the recording area B. Therefore, when the recording process of the input data D3 is completed, the memory 13 stores the existing data D1 in the recording area A.
(Standby data) is recorded, and the input data D is recorded in the recording area B.
3 (permission data) is recorded.

When the input data D3 is standby data, that is, the input data D3 is the existing data D1, D
If the data is of the same type as 2, the CPU 11 performs a process of deleting both the existing data D1 and D2 recorded in the recording areas A and B and recording the input data D3 in the recording area A. Therefore, as shown in the figure, the input data D having date and time information P3 to P7 that is future than the current date and time.
When 3 is input, the existing data D1 and D2 are deleted and the input data D3 is recorded in the recording area A. More specifically, the date / time information P3 indicating the date / time between the current date / time of the input data D3 and the date / time information of the existing data D1.
If the input data D3 has the same date / time information P4 as the existing data D1, the input data D3 has the date / time information P5 indicating the date / time between the date / time information of the existing data D1 and the date / time information of the existing data D2. , Input data D3
If the input data D3 has the same date and time information P6 as the existing data D2 and the input data D3 has date and time information P7 indicating a date and time later than the date and time information of the existing data D2, each existing data D1 and D2 are deleted,
The input data D3 is recorded in the recording area A. Therefore, when the recording process of the input data D3 is completed, the memory 13
Is in a state in which the input data D3 is recorded in the recording area A and the recording area B becomes an empty area.

(3-7) When the relationship of date and time information is "present <recording area B <recording area A" (past <future). In this case, as shown in FIG. 9B, the existing data D1 that is the standby data is recorded in the recording area B in the initial state, and the standby data has date and time information that is later than the date and time information of the existing data D1. The existing data D2 is recorded in the recording area A. That is, here, similar to the item (3-6), the existing data D1 and D2 of the same type are recorded in the recording areas A and B, respectively.

When the input data D3 is input, the CPU 11 classifies the input data D3. As a result, when the input data D3 is permission data, that is, when the input data D3 is of a type different from the existing data D1 and D2, the CPU 11 performs the same processing as the above item (3-6). That is, the CPU 11
Performs a process of rewriting the existing data having date / time information far from the current date / time among the existing data D1 and D2 into the input data D3. Therefore, as shown in the figure, the input data D3 having date and time information P1 and P2 before the current date and time
When is input, the existing data D2 recorded in the recording area A is deleted, and the input data D3 is recorded in the recording area A. Therefore, when the recording process of the input data D3 is completed, the memory 13 stores the input data D3 in the recording area A.
(Permission data) is recorded, and the existing data D is recorded in the recording area B.
1 (standby data) is recorded. That is,
Compared with the above item (3-6), the recording states of the existing data D1 and the input data D3 in the recording areas A and B have an opposite relationship.

When the input data D3 is standby data, that is, the input data D3 is the existing data D1, D
When the data is of the same type as 2, the CPU 11 performs the same processing as the above item (3-6). For this reason, as shown in FIG.
When the input data D3 having P7 is input, the existing data D1 and D2 are deleted, and the input data D3 is deleted.
Is recorded in the recording area A. Therefore, when the recording process of the input data D3 is completed, the input data D3 is recorded in the recording area A of the memory 13, and the recording area B becomes a free area.

As a result, the above items (3-6) and (3-
In 7), the above items (3-1) to (3-3)
Similarly to the above, the input data D3 is recorded in each of the recording areas A and B.
When the existing data D1 and D2 of the same type are recorded, the CPU 11 deletes both the existing data D1 and D2 and records the input data D3 in the recording area A.

When existing data D1 and D2 of different types from the input data D3 are recorded in the respective recording areas A and B, the CPU 11 causes the existing data D3 to be recorded.
Among the data D1 and D2, the existing data D1 and D2 having date and time information far from the current date and time is rewritten to the input data D3.

Therefore, as described in the above items <2> to <3>, when the input data is input in a state where the existing data exists in at least one of the recording areas A and B, the CPU 11 A type classification procedure that classifies the data into two types based on the relationship between the current date and time and date and time information of existing data and input data, and a type comparison procedure that compares the type of existing data with the type of input data, and The recording process is performed based on a program for executing the procedure for determining the recording areas A and B in which the input data should be recorded based on the comparison result.

Therefore, according to this embodiment, the following effects can be obtained. (1) As described in the above items <1> to <3>, C
When the new data D3 is input, the PU 11 preferentially records the input data D3 regardless of whether or not there is a free area in which the input data D3 can be recorded in each of the recording areas A and B. Record in A and B. That is, not only when there is a free area in the recording areas A and B, but also when there is no free area, at least one of the already recorded existing data D1 and D2 is deleted, The input data D3 is recorded in the empty area.
Therefore, the input data D3 can be recorded without fail, and the data can be surely updated.

(2) As described in the above items <2> and <3>, the CPU 11 determines the current date and time when the existing data D1 and D2 are present in at least one of the recording areas A and B. The input data D3 and the existing data D1 and D2 are classified into two types based on whether or not has reached the effective start date. Then, the CPU 11 causes the input data D3
The recording areas A and B in which the input data D3 is to be recorded are determined on the basis of the type and the types of the existing data D1 and D2. That is, the input data D3 is the existing data D1, D2.
Is recorded in the recording areas A and B in consideration of the relationship between the effective start date and the current date and time. Therefore, the existing data D1, D2
The input data D3 can be recorded in consideration of the effective start date and the current date and time.

(3) Normally, when the existing data has an error, the same type of data as the existing data is input. However, in the conventional fare display, if the existing data of the same type as the input data exists in one of the recording areas and the other has an empty area, the input data is recorded in the empty area. It has become. Therefore, erroneous data remains recorded in the recording unit even when the recording process of the input data is completed. Therefore, in the conventional fare display,
There is a possibility that the display control of the display panel 2 will be performed based on incorrect data.

On the other hand, in this embodiment, the item <
As described in 2> and <3>, when existing data of the same type as the input data exists in either of the recording areas A and B, the existing data of the same type is used as the input data. Can be rewritten. Therefore, erroneous data can be surely deleted, and the inconvenience that the display control of the display panel 2 is performed based on the erroneous data can be prevented.

(4) The above items (3-1) to (3-3),
As described in (3-6) and (3-7), when existing data D1 and D2 of the same type as the input data D3 are recorded in the respective recording areas, the existing data D3
Both 1 and D2 are deleted and the input data D3 is recorded area A.
Recorded in. For this reason, the input data D is stored in the memory 13.
Only 3 is recorded. Normally, even if two data of the same type are recorded in the memory 13, the CPU 11 performs the display process based on one of the data, so the other data is unnecessary. Therefore, unnecessary data can be surely deleted, and the inconvenience that the CPU 11 performs the display process based on the unnecessary data can be surely prevented.

(5) As described in the items (2-1) to (2-4), the existing data D1 of a type different from the input data D3 is recorded in one of the recording areas A and B, If the other recording area is a free area, the input data D3 is recorded in the free area. Usually, when the existing data D1 of a type different from the input data D3 is recorded in one of the recording areas A and B, the existing data D1 is data necessary for the display process. Therefore, when the recording process of the input data D3 is completed, only the necessary data is recorded in the memory 13. Therefore, CPU1
It is possible to reliably prevent inconveniences such as 1 performing display processing based on unnecessary data or being unable to perform display processing based on necessary data.

(6) The above items (3-1), (3-2),
As described in (3-4) and (3-5), when existing data D1 and D2 of different types from the input data D3 are recorded in the recording areas A and B, respectively, the existing data D1 is recorded. , D2 are compared with the current date and time, and the data whose effective start date is different from the current date and time are rewritten to the input data D3. Normally, when two data of the same type are recorded in the memory 13, the CPU 1
In No. 1, the display process is performed based on only the data whose effective start date is close to the current date and time. That is, data whose effective start date is different from the current date and time is unnecessary. Therefore, by rewriting the unnecessary data into the input data D3, only the necessary data can be recorded in the recording areas A and B. Therefore, it is possible to reliably prevent the inconvenience that the CPU 11 performs the display process based on unnecessary data.

The embodiment of the present invention may be modified as follows. -In the said embodiment, item (2-2) and (2-4).
As described above, the recording area A is a free area and the recording area B is
When the existing data D1 of the same type as the input data D3 exists in the input data D3, the input data D3 is preferentially recorded in the recording area A. However, in such a case, the input data D3 may be recorded in the recording area B. In other words, the recording area A is not prioritized, and the existing data D
1 may be rewritten to the input data D3.

In the embodiment, the item (3-
As described in 3), when the existing data D1 and D2 having the same date and time information are recorded in the recording areas A and B, if the input data D3 of a different type from the existing data D1 and D2 is input. The existing data D2 recorded in the recording area B is rewritten to the input data D3. However, in such a case, the CPU 1 is configured so that the existing data D1 recorded in the recording area A is rewritten to the input data D3.
The control mode of No. 1 may be changed.

In the above embodiment, the CPU 11 is
All the recording processing modes shown in the above items <1> to <3> are performed. However, the CPU 11 is not limited to all of these recording processing modes, and may be configured to selectively perform at least two of them. For example, in the item (3-1), when the input data D3 of the same type as the existing data D1 and D2 is input, the CPU 11 deletes the existing data D1 and D2 and deletes the recording area A.
The input data D3 is recorded in. However, when only one of the existing data D1 and D2 may be given priority over the input data D3, the CPU 11 does not perform the process of the item (3-1), and the existing data is not processed. May be rewritten to the input data D3. In this case, “being given priority” means that the difference between the valid start date of the existing data and the current date and time is smaller than the difference between the valid start date of the input data D3 and the current date and time. To do. That is, at the completion of the recording process of the input data D3 in such a case,
The memory 13 may be in a state of recording the input data D3 and the existing data D1 (or the existing data D2).

When two pieces of permission data exist in the memory 13, the permission data having date and time information indicating a date and time far from the current date and time may be automatically deleted from the permission data. For example, even if the permission data and the standby data are recorded in the memory 13 in the initial state, when the current date and time reaches the date and time information of the standby data, the memory 13 enters a state in which two permission data exist.
Then, in this state, the permission data in the initial state becomes unnecessary. Further, the date / time information of the permission data is farther from the current date / time than the date / time information of the standby data in the initial state. Therefore, in this way, unnecessary data can be surely deleted, and the inconvenience that the display process is performed based on the unnecessary data can be surely prevented.

In the above embodiment, the fare indicator of the bus is embodied as the data processing device. However, the data processing device is not limited to this, for example, a fare display for railway vehicles, ticket vending machines such as tickets, vending machines such as drinking water, production control boards, etc. Any device that changes and performs processing can be applied.

Next, in addition to the technical ideas described in the claims, the technical ideas grasped by the above-described embodiment will be listed below. (1) In the data recording method according to any one of claims 2 to 6, when there is no existing data of a type different from the input data in each of the recording areas, the control unit stores the input data. Recording preferentially in one of the recording areas.

(2) Two recording areas each capable of recording data including the effective start date, and control means for performing processing based on the data provided that the current date and time has reached the effective start date of the data. In a method of recording data in a data processing device comprising:
When the data is input to be recorded in the recording area and at least one free area in which the input data can be recorded does not exist in the recording area, at least one of already recorded existing data is deleted. A method of recording data, characterized in that the input data is recorded.

(3) Two recording areas each capable of recording data including the effective start date and data processing based on the data, provided that the current date and time has reached the effective start date of the data When the data is input, regardless of whether or not there is a free area in which the input data can be recorded in the recording area, the computer which performs a recording process of preferentially recording the input data in the recording area, When the input data is input in a state where existing data already recorded is present in at least one of the recording areas, two types of data are available from the relationship between the current date and time and the date and time information of the existing data and the input data. Based on the comparison result of the type classification procedure that classifies the types of existing data and the type comparison procedure that compares the type of existing data with the type of input data. And a recording processing program for executing a procedure for determining recording areas A and B in which input data is to be recorded.

[0090]

As described in detail above, according to the invention described in claims 1 to 6, it is possible to surely update the data.

According to the second aspect of the invention, the input data recording process can be performed in consideration of the effective start date and the current date and time of the existing data. According to the invention described in claim 3, it is possible to prevent the inconvenience that the control means performs data processing based on erroneous data.

According to the invention described in claims 4 and 6, it is possible to prevent the inconvenience that the control means performs data processing based on unnecessary data. According to the fifth aspect of the invention, the control means can surely record the necessary data, so that the data processing can be surely performed based on the necessary data.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment in which the present invention is embodied in a fare display for a bus.

FIG. 2 is an explanatory diagram showing a schematic configuration of a recording unit used in the embodiment.

3A and 3B are explanatory views showing a data processing mode of a control unit of the same embodiment.

FIG. 4 is an explanatory diagram showing an input data recording processing mode performed by the control unit of the embodiment.

5A and 5B are explanatory views showing a recording processing mode of input data performed by the control means of the embodiment.

6A and 6B are explanatory views showing a recording processing mode of input data which is performed by the control means of the embodiment.

7A to 7C are explanatory views showing a recording processing mode of input data performed by the control means of the embodiment.

8A and 8B are explanatory views showing a recording processing mode of the input data performed by the control means of the embodiment.

9A and 9B are explanatory views showing an input data recording processing mode performed by the control unit of the embodiment.

FIG. 10 is a table summarizing modes of recording processing of input data performed by the control means of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Fare indicator, 2 ... Display panel, 3 ... Control device, 11 ... CPU as control means, 13 ... Memory as recording part,
16 ... Data input section.

Claims (6)

[Claims] 1. A recording means having two recording areas each capable of recording data including a valid start time, and data processing based on the data provided that the current date and time has reached the valid start time of the data. In the method of recording data in a data processing device comprising a control means for performing, the control means, when the data is input, regardless of whether or not there is a free area in which the input data can be recorded in the recording area, A data recording method, characterized by performing a recording process of preferentially recording the input data in the recording area. 2. If there is existing data already recorded in the recording area, the control means determines the data to be 2 based on whether or not the current date and time has reached the valid start time.
The method according to claim 1, wherein the type of the input data is classified into types and the type of the existing data is compared, and the recording area in which the input data is to be recorded is determined based on the comparison result. Data recording method. 3. When the existing data of the same type as the input data exists in one of the recording areas, the control means rewrites the existing data of the same type into the input data. The method for recording data according to claim 2. 4. When the existing data of the same type as the input data exists in each of the recording areas, the control means deletes the existing data together and stores the input data in the one of the recording areas. The data recording method according to claim 2, wherein the data is recorded. 5. When the existing data of a type different from the input data exists in one of the recording areas and the other recording area is a free area, the control means sets the input data in the empty area. The method for recording data according to claim 2, wherein the data is recorded. 6. When the existing data of a type different from the input data exists in each of the recording areas, the control means compares the valid start time of the existing data with the current date and time, and the valid start time is 6. The data recording method according to claim 2, wherein existing data distant from the current date and time is rewritten with the input data.