JPH03209593A - Self-diagnosing device for taxi card system - Google Patents

Abstract

PURPOSE:To execute the diagnosis of each equipment and a system even after loading a device to a taxi by executing communication through each terminal and a signal line and diagnosing each terminal equipped with the signal line by a self-diagnosing means. CONSTITUTION:A taxi meter 1, card reader 6, storage device 4 and keyboard 3 are connected through signal lines L1, L5 L3 and L2 so as to be independently freely separated and a controller 2 to control of the storage of fee information to the storage device 4 is equipped with a self-diagnosing means 2-1 composed of a CPU to start an operation corresponding to the specified key operation of an operation part 3a in the keyboard 3. The communication is executed through the respective terminals and the signal lines by diagnosing means S2, S11, S16, S21 and S26 provided at this self-diagnosing means 2-1 and each terminal equipped with the signal line is diagnosed. Thus, in the condition of loading the controller 2 and each terminal to the car and connecting them each other, the diagnosis of the system can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a self-diagnosis device for a taxi card system.

[Prior art] A taxi card system includes a prepaid card (prepaid card) with a balance rewriting function, a member's card issued to a specific customer with a deferred payment contract, a ticket card issued in the required number to a customer with a deferred payment contract, It is intended to allow taxi fares to be paid with postpaid cards such as credit cards affiliated with credit companies, but it will be possible to accept all of these cards, and it will also be possible to issue receipts. If these functions were to be integrated into a single device housed in a single case, the device would be large and would be extremely difficult to install in a taxi vehicle, which has limited space. .

In addition, the equipment has become very expensive, and if you try to install it in a large number of taxi vehicles, you will need a large amount of money at once.
The number of taxi companies that can introduce this system is now limited, making it difficult for it to become widespread.

Therefore, the applicant first developed a component-type taxi system that allows the system to be expanded sequentially according to the budget or need, and also allows for effective use of the space inside the taxi vehicle. - Proposed a card system.

By the way, in this component type system,
The system is divided into a plurality of devices, and when mounted on a taxi vehicle, the devices are interconnected by signal lines. For this reason, it goes without saying that each piece of equipment must operate normally, but also that the system, which is interconnected with signal lines, must operate normally. In order to confirm that the system was working properly, we had to prepare diagnostic equipment for each device and system to check the operation of each device.

[Problem to be solved by the invention]

However, if diagnostic devices are prepared for each device and the system as described above, the number of diagnostic devices will increase and a large amount of equipment investment will be required for diagnosis.
This will lead to an increase in product costs.

In addition, it is difficult to diagnose the system after it has been installed in a taxi, so the system must be diagnosed at the factory before being installed in the taxi. - A malfunction may occur in one of the devices before it is installed in the vehicle, and if this happens, the system will not operate properly after being installed in the taxi vehicle, and the device may have to be removed for re-diagnosis. However, there was a problem in that the diagnosis had to be made again, which was extremely time-consuming.

Therefore, in view of the above-mentioned conventional problems, the present invention provides a taxi capable of diagnosing each device and system even after being installed in a taxi vehicle without preparing a dedicated diagnostic device.
Our objective is to provide a self-diagnosis device for card systems.

[Means for Solving the Problems] A taxi made according to the present invention to solve the above problems.
As shown in the basic configuration diagram of FIG. 1, the card system self-diagnosis device includes at least a taximeter 1 that outputs a payment tariff signal, and a magnetic card reader/writer or magnetic card that reads card information from a prepaid card or postpaid card. a card reading device 6 such as a reader; a storage device 4 such as an IC card reader/writer or a memory card reader/writer that stores at least fare information regarding taxi fare payment using the card;
Operation section 3a and LE such as numeric keypad and function keys
A keyboard 3 having a display section 3b such as D or LCD;
The taximeter 1, card reading device 6, storage device 4 and keyboard 3 are used as terminals, and each is connected to a signal line Ll.

The keyboard 3 includes a control device 2 such as a control box that is independently and detachably connected via Ls, L3, and LX and controls storage of charge information in the storage device 4, and the keyboard 3 has an operation section 3a thereof. In a taxi card system in which a key code is sent to the control device 2 by a key operation, and display data is received from the control device 2 and displayed on the display section 3b,
The control device 2 has a self-diagnosis means 2-1 which can be constituted by a CPU that operates according to a predetermined program that starts operating in response to a specific key operation on the operation section 3a of the keyboard 3, and the self-diagnosis means Diagnostic means S2.2-1 communicates with each terminal via the signal line and diagnoses each terminal including the signal line. S11. S16.
S21. It is characterized by having S26.

Then, the diagnostic means S2. Sll, S16°S21.
In S26, a predetermined signal is sent to each terminal, and based on a response signal thereto, the signal line and each terminal connected via the signal line are diagnosed.

Further, the diagnostic means S2 receives a key code sent out from the keyboard 3 by operating any key on the operating section 3a, and outputs display data corresponding to this key code to the keyboard 3 to Diagnose.

[For production]

In the above configuration, the taximeter 1, the card reading device 6, the storage device 4, and the keyboard 3 are connected to each other as terminals via the signal lines L+ and LsqL3vT-2, respectively, so that they can be independently connected to and separated from each other, and the storage device A control device 2 such as a control box that controls storage of charge information in the computer 4 is configured with a CPU that operates according to a predetermined program that starts operating in response to a specific key operation on the operation section 3a of the keyboard 3. The self-diagnosis means 2-1 has a self-diagnosis means S2. Sll, S16. Through S21 and S26, communication is performed with each of the terminals via the signal line, and each terminal including the signal line is diagnosed, so the control device 2 and each terminal are mounted on the vehicle and interconnected. You can diagnose the system based on the status.

Said diagnostic means S2. Sll, S16. Diagnosis in S21°S26 involves sending a predetermined signal to each of the terminals,
This is done based on the response signal to this.

In particular, the operation section 3a such as a numeric keypad or function keys
Diagnosis of each key on the operating section 3a of the keyboard 3, which has a display section 3b such as an LED or an LCD, is performed by receiving a key code sent by the keyboard 3 by operating any key on the operating section 3a, and using this key code. This is done by outputting display data corresponding to the above to the keyboard 3.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 2 shows an embodiment of a self-diagnosis device for a taxi card system according to the invention, in which the taxi card system is shown with all its components assembled.

In the figure, 1 is an existing electronic taximeter, and this taximeter 1 is connected to a control box 2 via a dedicated signal line. The control box 2 also includes a keyboard 3 with a magnetic card reader.
, an IC card reader/writer 4, a printer 5, and a magnetic card reader/writer 6 are connected via signal lines L2 to L5, respectively. In order to perform interconnection using the signal lines L+ to L5, connector insertion holes (not shown) are formed in advance in the control box 2 at the ends of each signal line. The electronic taximeter 1, the keyboard 3 with a magnetic card reader, the IC card reader/writer 4, the printer 5, and the magnetic card reader/writer 6 function as terminals of the control box 2.

The taxi meter 1 can output at least a wind sign signal indicating the operating and payment tariff status via the signal line L1. As this taximeter 1, one that can output various index data at the time of empty vehicle tariff and in response to data requests from the outside can also be applied.

The above control box 2 is for controlling the terminal of the taxi card system, and in addition to card information, the taxi meter 1 and the keyboard 3 with magnetic cart reader are used to control the terminal of the taxi card system.
It has the function of creating and storing sales information based on data from. For this purpose, the control box 2 monitors the taxi meter's tariff, running, stopping, etc.
It has a built-in clock function and remembers the date, time, vehicle number, etc.

The keyboard 3 with a magnetic card reader includes a key operation section 3a having a numeric keypad and various function keys, a display section 3b that displays various displays, and a magnetic card reader 3C that magnetically reads card information from a postpaid card such as a credit card. In addition, a buzzer (not shown) is provided. This keyboard 3 is used to enter expressway tolls other than metered tolls, additional charges such as parking charges, and discount charges, and to process the entered data, as well as to input boarding locations, alighting locations, number of passengers, etc. Used to display card balances, fees, additional charges, payment types for various cards, etc. Used to read cards, check cards, and process charges when making credit card payments. It is also used when paying with coupons and tickets. Furthermore, it is also used as an operating means for sequentially proceeding with the self-diagnosis function described later.

The IC card reader/writer 4 writes business time series data such as boarding/alighting point data and payment data to the IC card. It is also possible to display whether data collection is possible or not. As an IC card, data can be erased,
A rewritable EEPROM type card is used, and this card also stores various data such as crew number, district name, system classification, etc.

The printer 5 prints the fee, date of use, time, etc. on the usage form (receipt), and has a paper feeding function using the feed button 5a.

The magnetic card reader/writer 6 reads the card, checks the card, inputs the charge, rewrites the remaining amount, etc. when paying with a magnetic prepaid card or postpaid card, and depending on the card, displays a rough estimate of the remaining amount using a punch hole.

With the above configuration, an IC card is set in the IC card reader/writer 4 inside the taxi when the taxi leaves the parking lot. Operates the taxi meter 1 during business hours. At the time of payment, the user inputs the fee other than the meter, inserts the card into the magnetic card league 3C of the keyboard 3 with magnetic card reader, or the card reader/writer 6, and receives the payment.

At this time, the charge entered using the key operation part 3a of the keyboard 3 with a magnetic card reader is automatically added to the meter charge and displayed on the display, and the balance of the card and the amount of cash shortage when paying by card are automatically added to the meter charge and displayed on the display. etc. are also displayed on the display section 3b. After payment, a usage form is automatically issued by the printer 5 and handed to the passenger. When entering the warehouse, the IC card is removed from the IC card reader/writer 4.

The IC card extracted from the IC card reader/writer 4 is inserted into an office reader/writer at the taxi company's office, thereby outputting a payment journal and obtaining business results and the like. Also, charge information is sent to the computer.

Of the fee information collected as described above, information regarding the card is used by the card company to perform payment processing, and each customer is billed for usage fees based on deferred payment fee information.

The two-pair control box 2 is configured as shown in Fig. 3, and includes a microcomputer (CPU) 2a that operates according to a predetermined control program, a ROM 2b that stores the control program, etc., and a ROM 2b that stores various data. It has a RAM 2c, a calendar and clock 2d, a terminal interface 2e, etc. This control box 2 is designed to be able to constantly exchange signals and data with the taximeter 1, and includes a keyboard 3 with a magnetic card reader, an IC card reader/writer 4,
Signals and data can be exchanged between the printer 5 and the magnetic card reader/writer 6 via a terminal interface 2e selected from them.

Then, each signal of sales, pickup, strobe, data, speed, empty, rental, 20% increase, and payment/waiting is input from taximeter 1, and a data request signal is output to taximeter 1. It looks like this. Further, key-on data and card data are inputted from the keyboard 3 with a magnetic card reader, and display data and the like are outputted to the keyboard 3 with a magnetic card reader. Then, card insertion data, card ejection data, cart data, etc. are inputted from the IC card reader/writer 4, and card writing data and ID code data are outputted to the IC card reader/writer 4. Furthermore, each button operation status signal is inputted from the printer 5, usage form data and cumulative sales data are outputted to the printer 5, and magnetic card data and operation status data are inputted from the magnetic card reader/writer 6. It operates to output magnetic card write data, operation instructions, and ejection instruction signals to the magnetic card reader/writer 6. Through the above operations, the control box 2 automatically controls the system to collect card data and business information as described above.

In addition to the original job of controlling this system, the control box 2 also stores a control program in the ROMZ for diagnosing each device that makes up the system and the entire system when the terminal is connected and the system is configured.
b, and by operating a specific key on the keyboard 3 with a magnetic card reader, a self-diagnosis mode is entered, which will be described later.

As mentioned above, a communication path is always formed between the control box 2 and the taxi meter 1, but only one communication path is formed with other terminals, so the control box 2 communicates with the taxi meter 1 via the terminal interface 2e. Controls the selection of terminals to communicate with. Communication between the control box 2 and each terminal is performed using a simplified HASIC procedure. First, if both the master station and the slave station have no data to send, the master station sends DLE (transmission control extension) and EN to the slave station as shown in Figure 4.
A Q (inquiry) control code is sent, and the slave station receives this and sends DLE and EOT (end of transmission) control codes to the master station, and repeats this operation.

In addition, when the master station transmits data, as shown in FIG. 5, after transmitting DLE and ENQ and receiving DLE and EOT from the slave station, the master station transmits DLE and STX to the slave station.
(start text), text, DLE, ETX (
(end of text) and BCC (binary check code) are sent sequentially.

The slave station receives this and sends a DLE and ACK (
acknowledgment). The master station that received this sends DLE and EOT to the slave station, in response, the slave station sends DLE and EOT indicating the end of reception to the master station, and in response, the master station sends DLE and EOT indicating the end of transmission. and ENQ are sent to the slave station to end data transmission.

When the slave station transmits data, as shown in FIG. 6, upon receiving DLE and ENQ from the master station, it sends DLE, STX (via dex), text, and DLE to the master station. ETX (end of dexto) and BCC
(binary check code) is sent sequentially. Upon receiving this, the master station sends a DLE and an ACK (acknowledgement) to the slave station.

The slave station that receives this signal indicates the completion of transmission to the master station.
The master station sends LE and EOT, and in response, the master station sends DLE and EOT indicating completion of reception to the slave station.

If a BCC error occurs in the above-mentioned data transmission, the receiving side sends a DLE and NAK (negative acknowledgment), and the transmitting side receives this and transmits the data again. If there is no response from the slave station to polling from the master station,
Polling is repeated from the main station after a certain period of time. Even if there is no response to the text from the receiving side, the sending side will send the text again after a certain period of time. Others: no response to ACK, no response to EOT, E
Even in the case of TX omission, data transmission is processed by sending and receiving appropriate codes.

Next, an outline of the operating procedure and contents of the self-diagnosis will be explained.

When entering the self-diagnosis mode, first a predetermined specific key on the operating section 3a of the keyboard 3 with magnetic card reader is operated. When the control box 2 normally receives the signal from this key operation, the LED forming the display section 3b of the keyboard 3 with a magnetic card reader,
Send display data to turn on all LCDs and data to make the buzzer sound intermittently. In response to this, if the display section 3b of the keyboard 3 with magnetic card reader lights up normally and the buzzer sounds intermittently, the signal line between the control box 2 and the keyboard 3 with magnetic card reader is normal.
Moreover, it can be confirmed that the display section 3b and the buzzer of the keyboard 3 with magnetic card reader also operate normally. Thereafter, the test mode for each key on the operating section 3a of the keyboard 3 with a magnetic card reader is entered, and when this mode is entered, the display section 3b is made to display a message to that effect, for example, [KITEST]J.

In this key test mode, when each key on the keyboard 3 with a magnetic card reader is operated in sequence, a predetermined code for that key is transmitted to the keyboard 3 with a magnetic card reader.
from there to control box 2. The control box 2 is configured to send the received code back as display data to the keyboard 3 with a magnetic card reader. The keyboard 3 with a magnetic card reader that receives the display data from the control box 2 causes the display section 3b to perform display based on this display data.

Therefore, by visually checking this display and confirming whether or not the predetermined code of letters or numbers corresponds to the operated key, it can be determined that the operated key is working normally. . This key test can be performed on all keys, and when the test is finished or when it is desired to move on to the next test, a predetermined key can be operated.

The next test is a printer test mode, and the display unit 3b of the keyboard 3 with a magnetic card reader displays a message indicating that the printer test mode has entered, for example, ``Printer Test''.

After that, the control box 2 sends a predetermined command to the printer 5 via the signal line, and the printer 5 responds to this command.
The control box 2 side monitors whether the control line of the printer goes online, and when it is confirmed that the control line goes online, it is determined that the signal line between the control box 2 and the printer 5 is normal. I judge that there is. After that, keyboard 3 with magnetic card reader
When a predetermined key on the operating section 3a is operated, the control box 2 sends print data for all characters to the printer 5, causing the printer 5 to perform the printing operation.

If there is no abnormality in the printing operation and the signal line as described above, the display unit 3b displays [Self-test] OK,
If there is an abnormality in the test, a blinking display saying "Printer failure" will be displayed.

When the above printer test is finished or if you want to skip this test, press the keyboard with magnetic card reader 3.
By operating a predetermined key on the operation section 3a, the next IC card reader/writer test mode is entered, and the rICC
/R test" is displayed on the display section 3b. If you want to omit this test, you can proceed to the next test mode by operating a predetermined key on the operation section 3a of the keyboard 3 with magnetic card reader, but if you want to perform further tests, the operation section 3a
When you operate a predetermined key, first send a predetermined command to the IC card reader/writer 4, check whether a response to this, that is, an ACK, is returned from the IC card reader/writer 4, and if it is returned, the control box It is determined that the signal line between the IC card reader/writer 2 and the IC card reader/writer 4 is normal. After that, when the IC card is inserted into the IC card reader/writer 4 and a predetermined key is operated, the control box 2 sends the card security code to the IC card reader/writer 4 and monitors whether a normal response is returned. . This checks whether the communication path between the IC card reader/writer 4 and the IC card is normal by checking whether the code sent from the control box matches the code stored in the IC card. It is for diagnosing. If it is normal, then the control box 2 sends a write command to the specified address and monitors whether a normal response is returned.

When a normal response is returned, a read command is sent to the specified address to read out the contents written by the write command, and the IC card data is checked based on the result.

If the above checks are performed normally, the display section 3b of the keyboard 3 with magnetic card reader will indicate "Self-test" OK.
J is displayed, and if there is an abnormality, "r I CC/R error" is displayed blinking within a predetermined time.

When the above-mentioned IC card reader/writer test mode ends normally or this test is skipped, the process proceeds to the memory card reader/writer test mode and causes the display section 3b to display "rMCC/R test". If you wish to omit this test, you can proceed to the next test mode by operating a predetermined key on the operating section 3a of the keyboard 3 with a magnetic card reader; however, if you wish to continue the test, by operating a predetermined key, the Send a predetermined command to the memory card reader/writer provided instead, check whether a response to this, that is, an ACK, is returned from the memory card reader/writer, and if it is returned, the control box 2 and the memory card reader/writer are It can be determined that the signal line between the two is normal. After that, when the memory card is inserted into the memory card reader/writer and a predetermined key is operated, the control box 2 sends a write command to the specified address and monitors whether a normal response is returned. When a normal response is returned, a read command is subsequently sent to the specified address to read the contents written by the write command, and the data in the memory card is checked based on the result. If the above checks are performed normally, the display section 3b of the keyboard with magnetic card reader 3 will display "Self-test OKJ", and if there is an abnormality, "Memory C/R OK" will flash within a predetermined time. indicate.

When the above-mentioned memory card reader/writer test mode is completed normally or this test is skipped, the process proceeds to the magnetic card reader/writer test mode and "Jiki C/R test" is displayed on the display section 3b of the keyboard 3 with magnetic card reader.
A display will be displayed.

If you want to omit this test, press a predetermined key on the operating section 3a of the keyboard 3 with a magnetic card reader to proceed to the test mode.However, if you want to perform a further test, operate a predetermined key on the operating section 3a and the magnetic card reader will first be activated. Send a predetermined command to the reader/writer 6 and check whether a response, that is, an ACK, is returned from the magnetic card reader/writer, thereby confirming that the signal line between the control box 2 and the magnetic card reader/writer is normal. It can be determined that

After that, it sends a motor drive command and monitors whether a normal response is returned and performs a motor initial check.

When the above magnetic card reader/writer test mode is completed normally or this test is skipped, the taxi
Proceeding to the meter test mode, the display section 3b displays "Taxi Meter Test" indicating that the mode has proceeded to the taxi meter test mode. If you wish to omit this test, press a predetermined key on the operating section 3a of the keyboard 3 with a magnetic card reader to advance to the next test mode, and to proceed with the test, press a predetermined key to request data from the taximeter 1. The control box 2 checks whether data is returned from the taximeter 1 and checks the communication path between the control box 2 and the taximeter 2. When the data is returned normally, its contents are analyzed and it is checked whether the predetermined code is stored in the taximeter 1 and whether the data length and communication protocol are being followed. If the above checks are performed normally, the display section 3b of the keyboard with magnetic card reader 3 will display "Self test OKJ", and if there is an abnormality, "Taximeter ready" will be displayed blinking within a predetermined time. .

When the taximeter test mode is successfully completed or this test is skipped, the taximeter tariff (wind sign) signal test mode is entered. If you want to omit this test, operate the keys on the operating section 3 of the keyboard 3 with magnetic card reader to proceed to the next test mode, and when you want to proceed with the test further, operate the specified key.
...'' is displayed on the display section 3b.

Also, when picking up the car, "Tariff check 11..."
The system displays "Tariff check 1.l..." when the fare is paid, "Tariff check 1...1..." when the fare is increased by 20%, and "Tariff check 1...1" when paying. When a display different from this is displayed, it can be known that there is an abnormality in the tariff sign signal.

When the taximeter tariff (wind sign) signal test mode is successfully completed or this test is skipped, the taximeter speed signal test mode is entered. If you wish to omit this test, operate the keys on the operating section 3a of the keyboard 3 with magnetic card reader.
Clears self-diagnosis mode and returns to normal operation. When the above operation is not performed, the current speed of the taxi vehicle is displayed on the display unit 3b as, for example, [Speed Okm/H], and this display is compared with, for example, the display of the speedometer of the taxi vehicle. By this, it can be determined that the speed signal is normal.

Control box 2 shows the details of the operations outlined above.
The explanation will be given with reference to the flowcharts of FIGS. 7 and 8 showing the work that the CPU 2a of the CPU 2a performs according to a predetermined program.
The work performed by the operator according to a predetermined program will be briefly explained with reference to the flowchart shown in FIG. The CPU included in the magnetic card reader-equipped keyboard 3 starts operating when its power is turned on, and in the first step S51 determines whether or not there is a key operation on the operating section 3b. If there is an operation, the process advances to step S52 and the key code is sent to the control box 2. No operation (If the determination in step 351 is No, the process advances to step S53 to determine whether or not data etc. are received from the control box 2. If the determination is NO, the process returns to step S51.Control box 2 When there is a reception from , the process advances to step S54 and executes a command based on the received data.If the command is display data, for example, a display based on the display data is displayed on the display section 3b.After step 354 is executed Proceeds to step 355 and ACKs
is transmitted to the control box 2 and the process returns to step S51.

The work executed by the CPU 2a of the control box 2 shown in the flowchart of FIG. 7 starts when entering the self-diagnosis mode by operating a predetermined key on the operating section 3a of the keyboard 3 with a magnetic card reader, and the first step S1 is , the display data is sent to the keyboard 3 with a magnetic card reader, and the LED and LC constituting the display section 3b are sent to the keyboard 3 with a magnetic card reader.
Display D in all lights. Thereafter, the process proceeds to step S2, where a keyboard check mode is executed based on the subroutine shown in FIG. 8(a).

In the subroutine of FIG. 8(a), a key code is received from the keyboard 3 in the first step S2a, and in the subsequent step S2b, the received code commands to end this mode and move to the next mode. It is determined whether the data is check END data. If the determination is No, the process proceeds to step S2c, where the BCC in the received data is checked, and whether or not the result of this check is OK is determined in the subsequent step S2d. If this determination is YES, the process advances to step S2e, where the key code received in step S2a is transmitted as is. Then proceed to step 32f,
Here, it is determined whether or not the transmission performed in step S2e is OK based on whether or not there is an ACK from the keyboard 3. When ACK is received from the keyboard 3, the determination in step S2f becomes YES, and the step S
Returning to step 2a, the next key code is received, and the operations of steps S2b to 2f described above are repeated, thereby making it possible to perform a key test on all the keys on the operating section 3a of the keyboard 3.

” When the check END data is received in step S2a and the determination in step S2b is YES, the process proceeds to step 32g, where after setting the normal flag, the seventh
The process advances to the next step S3 in the flowchart shown in the figure. If the determination in step S2d is NO1, that is, there is an abnormality in the BCC check, the process proceeds to step S2h, where an abnormality flag is set, and then the process proceeds to step S3.

Further, when the determination in step S2f is NO, that is, when ACK is not received from the keyboard 3, the process proceeds to step S2i, where an abnormality flag is set, and then the process proceeds to step S3.

In step S3, which proceeds after execution of the above subroutine in FIG. 8(a), it is determined whether the flag set in the subroutine is normal or not, and when the flag is normal and the determination is YES, the process proceeds to step S4, If the flag is abnormal and the determination is NO, an abnormality message is output in step S5, and then the process proceeds to step S4. In step S4, it is determined whether or not a predetermined key has been operated on the operating section 3a of the keyboard 3. If the determination is NO, the process advances to step S6, where the printer check mode is switched to the eighth
It is executed based on the subroutine shown in Fig.

In the subroutine of FIG. 8(G), print data is sent to the printer 5 in the first step S6a. The process then proceeds to step S6b, where it is monitored whether or not a predetermined control line of the printer 5 returns to its normal operating state. As a result of this monitoring, if the normal state has been returned and the determination in step S6b is YES, the process proceeds to step S6c, where a normal flag is set, and then the process proceeds to step S7 in the flowchart of FIG. If the determination is No, the process proceeds to step S6d, where an abnormality flag is set, and then the process proceeds to step S7.

In step S7, which is proceeded after the execution of the above subroutine in FIG. 8(b), it is determined whether the flag set in the subroutine is normal or not, and when the flag is normal and the determination is YES, the process proceeds to step S8, Here, the normal message is displayed on the display section 3b of the keyboard 3, and then the process advances to step S9.

If the flag is abnormal and the determination in step S7 is NO, the process proceeds to step SIO, where an abnormal message is displayed on the display section 3b of the keyboard 3, and then the process proceeds to step S9. In step S9, the operating section 3 of the keyboard 3
In step a, it is determined whether a predetermined key has been operated or not, and if the determination is No, the process proceeds to step Sll, where the IC card reader/writer check mode is executed based on the subroutine shown in FIG. 8(C).

In the subroutine of FIG. 8(C), the card is checked in the first step Sla. In this card confirmation operation, a command is sent to confirm the presence or absence of a card, and a response is received. After that, the process proceeds to step 5llb, where it is determined whether or not the card confirmation operation was performed normally. If the determination is YES, the communication path between the control box 2 and the IC card reader/writer 4 is operating normally. The process proceeds to step 5llc, where ID verification is performed. For this ID verification, a predetermined ID code is sent to the IC card reader/writer 4, and the verification result is received from the IC card reader/writer 4. Next, the process proceeds to step S], 1d, where the system password and user bus code are verified. After executing steps 5llc and lid, the process proceeds to step 5lle, where it is determined whether or not the result of the verification is OK. The verification result is OK and the judgment in step 5lle is YE.
If S, proceed to step 5llf.

In step 5llf, a write command is sent to the IC card reader/writer 4, and a response thereto is received. Thereafter, the process proceeds to step SI Ig, where it is determined whether the response has been normally received. Step S
When the determination in L1g is YES, the process advances to step 5llh, where a read command is sent to the IC card reader/writer 4, and the read data is received as a result. The process then proceeds to step Si, where step 5llf determines whether the write command was successfully read by the read command in step 5llh. When the determination in step 5lli is YES, a normal flag is set in the subsequent step 5llj, and then the process proceeds to step S12 in the flowchart of FIG. In addition, the above steps 5llb, 5
When the judgment of lle, SLlg and lli is NO, ste, tsubu 5ilk, 511j2.511m and 5 respectively
11n, and after setting an abnormality flag in each step, the process proceeds to step SL2 in the flowchart of FIG.

In step S12, which is proceeded after execution of the above subroutine in FIG. 8(C), it is determined whether the flag set in the subroutine is normal or not, and when the flag is normal and the determination is YES, the process proceeds to step S13, Here, the normal message is displayed on the display section 3b of the keyboard 3, and then the process proceeds to step 314. If the flag is abnormal and the determination in step S12 is No, the process advances to step S15;
After displaying the abnormal message on the display section 3b of the keyboard 3, the process proceeds to step S14.

If the flags set in steps 5Llk to SI In are made to be distinguishable from each other, the content of the abnormality can be displayed by the abnormality message in step S15. First, step 5Ll
The communication path between the control box 2 and the IC card reader/writer 4 and the IC
An abnormality in the sensor within the card reader/writer 4 can be notified. Further, depending on the abnormality flag in step 5llf, it is possible to notify abnormalities in the communication path between the IC card reader/writer 4 and the IC card, card errors, card defects, etc. Further, depending on the abnormality flag in step 811m, an abnormality such as the write command cannot be recognized by the IC card reader/writer 4 side is notified, and depending on the abnormality flag in step Sl in, it is notified that the read command cannot be recognized, card abnormality, data conversion function, etc. Notify you of any abnormalities.

In step S14, it is determined whether a predetermined key has been operated on the operation section 3a of the keyboard 3,
If the determination is NO, the process advances to step S16, where the memory card reader/writer check mode is executed based on the subroutine shown in FIG. 8(C).

In the subroutine of FIG. 8(C), first, step 516
Check the card in step a. In this card confirmation operation, a command is sent to confirm the presence or absence of a card, and a response is received. Then step 51
Proceed to step 6b, where it is determined whether the card confirmation operation was performed normally, and if the determination is YES, proceed to step 5l above.
The process advances to lf, and subsequent steps such as step SL1g are executed. Further, when the determination in step 516b is No, the process advances to step 516c, where an abnormality flag is set, and then step S17 in the flowchart of FIG.
Proceed to.

In the above step S17, it is determined whether the flag set in the subroutine is normal or not, and when the flag is normal and the determination is YES, the process proceeds to step 318,
After displaying the normal message, step 319
Proceed to. If the flag is abnormal and the determination in step 317 is NO, the process advances to step S20, where an abnormality message is displayed.

In step S19, it is determined whether a predetermined key has been operated on the operation section 3a of the keyboard 3,
If the determination is NO, the process advances to step S21, where the magnetic card reader/writer check mode is executed based on the subroutine shown in FIG. 8(d).

In the subroutine of FIG. 8(d), first, step 521
In step a, the initial command is sent, and then the process proceeds to step 321b, where the response to the command sent in step 521a is determined, and if the response is normal and the determination is YES, the process proceeds to step 521c, and if the determination is No, step 521d Proceed to. Step 521
At step 521d, the normal flag is set, and at step 521d, the abnormal flag is set, and then the process proceeds to step S22 in the flowchart of FIG.

In step S22, it is determined whether the flag set in the subroutine is normal or not, and when the flag is normal and the determination is YES, the process proceeds to step S23,
After displaying the normal message, step S24
Proceed to. If the flag is abnormal and the determination in step S22 is NO, the process proceeds to step S25, where an abnormality message is displayed, and then the process proceeds to step S24.

In step S24, it is determined whether a predetermined key has been operated on the operating section 3a of the keyboard 3,
If the determination is NO, the process proceeds to step S26, where the taxi meter check mode is executed based on the subroutine shown in FIG. 8(e).

In the subroutine of FIG. 8(e), first step 52
After sending the data request signal to the taximeter 1 in step 6a, the process proceeds to step 526a, where the data length, BCG, etc. of the index data sent from the taximeter 1 in response to the data request are checked. The process then proceeds to step 526c, where it is determined whether or not the result of the check in step 526b is OK.

This judgment result is OK, and when the judgment is YES, a normal flag is set in step 526d, and when the judgment is NO, an abnormality flag is set in step 526e, and then the seventh
The process advances to step S27 in the flowchart shown in the figure.

In the above step S2'l, it is determined whether the flag set in the subroutine is normal or not. If the flag is normal and the determination is YES, the process proceeds to step 328, where a normal message is displayed, and then Step S2
Proceed to step 9. If the flag is abnormal and the determination in step S27 is No, the process proceeds to step S30, where an abnormality message is displayed, and then the process proceeds to step S29.

In step S29, the operating section 3 of the keyboard 3
In step a, it is determined whether a predetermined key has been operated or not. If the determination is NO, the process proceeds to step S31, where a tariff check mode is executed based on the subroutine shown in FIG. 8(f).

In the subroutine of FIG. 8(f), in step 531a, display data is output to the display section 3b of the keyboard 3 based on the wind sign signal input by the tariff operation, and a display according to the tariff is performed, and the taxi To check whether a signal line between a meter 1 and a control box 2 is properly connected. Thereafter, the process proceeds to step 331b, where it is determined whether check END data generated by operating a predetermined key on the operation section 3a of the keyboard 3 with magnetic card reader has been received. 531
Steps a and 531b are repeated, and when the determination is YES, the process advances to step S32 in the flowchart of FIG.

In step S32, the speed check mode is executed based on the subroutine shown in FIG. 8. In this subroutine, in step 532a,
A speed signal generated by the running of a taxi vehicle is input, and the speed is measured based on this input speed signal. The result of this measurement is outputted as display data to the keyboard 3 with a magnetic card reader, and the speed is displayed on the display section 3b. Thereafter, the process proceeds to step 532b, where it is determined whether or not check END data generated by operating a predetermined key on the operation section 3a of the keyboard 3 with magnetic card reader has been received, and while this determination is NO, step 532a and Step 532b is repeated, and when the determination becomes YES, the process returns to the flowchart of FIG.

〔effect〕

As explained above, according to the present invention, each terminal is connected to each other via a signal line so that they can be independently connected to each other, and the terminals are connected to each other via a signal line so that they can be connected to each other independently. A control device is equipped with a self-diagnosis means that starts operating in response to a specific key operation, and the self-diagnosis means that corresponds to each terminal communicates with each terminal via a communication line and receives signals. Since each terminal including the line is diagnosed, the system can be diagnosed with the control device and each terminal installed in the vehicle and interconnected, so there is no need to prepare multiple diagnostic devices. This eliminates the need for large capital investments and can reduce costs.

Further, since the diagnosis of the system can be performed after the system is installed in the taxi vehicle, it is possible to reliably prevent the taxi vehicle from being operated without the system operating normally.

Moreover, even if the system stops working, the diagnosis can be performed without having to remove the terminal for re-diagnosis, which saves time and effort.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the basic configuration of a self-diagnosis device for a taxi card system according to the present invention, FIG. 2 is a block diagram showing an embodiment of the self-diagnosis device for a taxi card system according to the present invention, and FIG. A block diagram showing the circuit configuration of the control box in Fig. 2, Figs. 4 to 6 are explanatory diagrams showing the form of communication between the control box and each terminal, and Figs. FIG. 9 is a flowchart showing the work performed by the CPU in FIG. 2. FIG. 9 is a flowchart showing the work performed by the keyboard in FIG. DESCRIPTION OF SYMBOLS 1...Taximeter, 2...Control box, 3...Keyboard, 3a...Operation unit, 3b...
・Display unit, 4...Storage device (IC card reader/writer, memory card reader/writer), 6...Card reading device (magnetic card reader/writer), Ll, L2゜L3
, LS...signal line, 2-1...self-diagnosis means (
CPU), S2. S11. S16. S21. S26...
- Diagnostic means (CPU).・Tanene 8 To ward 512 (C) To 522 (d) (f) 27 (e) Return (9) Figure

Claims (3)

[Claims] (1) A taximeter that outputs at least a payment tariff signal, a card reading device that reads card information from a prepaid card or postpaid card, a storage device that stores at least fare information regarding taxi fare payment using the card, and an operation unit. and a keyboard having a display section, and the taximeter, card reading device, storage device, and keyboard as terminals, each of which is independently connected to and detachable via a signal line, and the fare information is stored in the storage device. and a control device that controls the
In the taxi card system, the keyboard sends a key code to the control device by operating a key on its operation section, and also receives display data from the control device and displays it on the display section, wherein the control device has a self-diagnosis means that starts operating in response to a specific key operation on the operating section of the keyboard, and the self-diagnosis means communicates with each of the terminals via the signal line, and each terminal including the signal line A self-diagnosis device characterized by having a diagnostic means for diagnosing a terminal. (2) The diagnostic means sends a predetermined signal to each of the terminals, and diagnoses the signal line and each of the terminals connected via the signal line based on a response signal thereto. The self-diagnosis device according to claim 1, characterized in that: (3) The diagnostic means receives a key code sent by the keyboard by operating any key on the operation unit,
The self-diagnosis device according to claim 1, wherein each key is diagnosed by outputting display data corresponding to the key code to the keyboard.