JPH10269392A - Data carrier system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To unnecessitate a digital switch for time setting to a clock operating means that is provided on a vehicle in a data carrier system. SOLUTION: A vehicle 2 is provided with a vehicle side controller 1 and a clock operating device 12. Keys 4A and 4B of the vehicle 2 are provided with a transponder 3 that records travel information which is sent from the controller 1, and an office 6 is provided with a reader/writer device 5. The device 5 records time setting information on the transponders 3, and when the keys 4A and 4B are inserted into the vehicle 2, the time setting information of the transponders 3 is given to the controller 1 and a time is set to the device 12 based on the time setting information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a vehicle control device which records driving information of a vehicle on a data carrier device.
The present invention relates to a data carrier system in which operation information recorded in the data carrier device is read by a reader device.

[0002]

FIG. 6 shows a conventional configuration of the data carrier system. here,
The vehicle 31 has a vehicle-side control vehicle 32 mounted thereon.
When the C card 33 is inserted into a holder (not shown) of the vehicle 31, operation information (such as the engine start date and time) is transmitted from the vehicle-side control vehicle 32 to the IC card 33, and the IC card 3
3 is stored in the memory.

An office or the like has a personal computer 3
4. A reader device 35 is provided. When the driver operates the personal computer 34 after carrying the IC card 33 and inserting the reader card 35 into the reader device 35, the user reads "Read data from the personal computer 34 to the reader device 35. Is transmitted. Then, the reader device 3
5 transmits an instruction to “send data” to the IC card 33, and operation information is transferred from the IC card 33 to the personal computer 34 through the reader device 35.

However, in the above-described conventional configuration, there is an inconvenience that the driver carries both the key and the IC card 33, and there is room for improvement in terms of usability. Especially in the case of special vehicles such as construction vehicles, the key and I
It is extremely inconvenient to carry the C card 33, and improvement of usability is urgently desired.

[0005] To improve this, the applicant has filed Japanese Patent Application No. 8-331094. A vehicle-side control device mounted on a vehicle and transmitting operation information of the vehicle, a data carrier device provided on a key of the vehicle and recording operation information transmitted from the vehicle-side control device, and the data carrier device And a reader device for reading the operation information from the device. According to the above configuration, the operation information is communicated using the vehicle key as a medium. This eliminates the need to carry an IC card, thus improving usability.

When time information (such as the above-mentioned engine start date and time) is given to the key data carrier device,
Clock means is required on the vehicle side. The clock means includes a microcomputer, a real-time clock (crystal oscillator), a display unit, a digital switch for inputting and setting date and time, and the like. In this case, a microcomputer,
The real-time clock (crystal oscillator) and the display unit correspond to clock operation means constituting a main part of the clock means. However, the above digital switch is necessary when setting the time first, but thereafter, it is not so frequently used and is expensive.

The present invention has been made in view of the above circumstances, and an object of the present invention is to allow vehicle operation information including time information to be recorded on a data carrier device by a vehicle side control device.
In a data carrier system in which operation information recorded in the data carrier device is read by a reader device, a data carrier system which can eliminate the need for a digital switch for setting time for clock operation means provided in a vehicle is provided. It is in.

[0008]

According to the present invention, there is provided a vehicle-side control device mounted on a vehicle for transmitting operation information of the vehicle including time information, and the vehicle receives time information between the vehicle-side control device. Clock operating means provided to transfer the data, a data carrier device provided on a key of the vehicle for recording operation information transmitted from the vehicle-side control device, and a reader device for reading operation information from the data carrier device And a writer device for recording time setting information in the data carrier device, wherein the data carrier device provides the vehicle-side control device with time setting information of the data carrier device when the key is mounted on a vehicle, The clock operating means includes:
It is characterized in that the time is set based on the time setting information given to the vehicle-side control device.

In this configuration, the writer device
The time setting information is recorded in the data carrier device, and when the key is mounted on the vehicle, the time setting information of the data carrier device is provided to the vehicle-side control device, and the clock operating means is provided to the vehicle-side control device. Since the time is set based on the time setting information, a digital switch for setting the time for the clock operating means provided in the vehicle is not required.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. First, FIG. 1 shows a schematic configuration of a data carrier system. The vehicle-side control device 1 is provided in, for example, a construction vehicle 2, and the transponder 3 corresponding to a data carrier device is, for example, an ignition key 4A, 4B (one of which is a master key).
Is provided in the key grip. Further, a reader / writer device 5 which is used as a reader device and a writer device is provided in the office 6.

As shown in FIG. 2, the vehicle-side control device 1
It comprises a control circuit 7 mainly composed of a microcomputer, a power amplifier 8, a resonance circuit section 9, a detection circuit 10, and an amplifier 11. The resonance circuit section 9 has an antenna coil 9a and a resonance capacitor 9b. A control program is stored in the control circuit 7 of the vehicle-side control device 1, and the control circuit 7 turns on and off the power amplifier 8 based on the control program, as shown in FIG. A transmission signal in which a data pulse is superimposed on a signal is transmitted from the antenna coil 9a. Further, the vehicle 2 is provided with a clock operating device 12 as a clock operating means having a microcomputer, a real-time clock (crystal oscillator), and a display unit such as a digital display. The time information is transferred to and from the control circuit 7 of the vehicle-side control device 1.

The transponder 3, as shown in FIG.
Transponder coil 13a and resonance capacitor 1
Transponder resonance circuit 13 having 3b, power supply circuit 14, detection circuit 15, control circuit 16 mainly composed of microcomputer, non-volatile memory 17, such as EEPROM, CR oscillation circuit 18, and modulation circuit 1
9 is provided.

Now, when the key 4A or 4B is
When the antenna coil 9a of the vehicle-side control device 1 of the vehicle 2 and the transponder coil 13a of the key 4A or 4B are electromagnetically connected to each other, the vehicle 2 side is inserted into the door key cylinder or the ignition key cylinder of the vehicle 2. The transmission signal from the antenna coil 9a is the key 4A
Alternatively, it is applied to the 4B side transponder coil 9a in a non-contact manner.

In the transponder 3 on the key 2 side,
The transmission signal is received by the transponder resonance circuit unit 13. This received signal is the same as in FIG. In this case, AC power is supplied by the power signal. That is, this AC power is supplied to the power supply circuit 14.
Rectified and sufficiently smoothed and made constant voltage, and the constant voltage power supply is supplied to each circuit. The detection circuit 15 shapes the resonance waveform, which is the reception signal of the transponder resonance circuit section 13, with a time constant smaller than that of the power supply circuit 14, and outputs a pulse data waveform.

The control circuit 16 of the transponder 3
Among these pulse data, SOM (Start of Message)
When the input is detected, data reading is started, and thereafter, the contents of the command are determined. Then, based on the determination result, data such as an ID code is read from the nonvolatile memory 17 or required data such as operation information is written. The operation information includes time information such as engine start date and time and stop date and time, and diagnosis information.

When the ID code or the like is returned from the transponder 3, the impedance of the transponder resonance circuit 13 is changed by the modulation circuit 19 according to the data to be returned. 1
5B generates a reply signal shown in FIG. This return signal is provided to the control circuit 7 via the detection circuit 10 and the amplifier 11 on the vehicle side. In this case, after detecting the input of the SOM after the frame synchronization, the control circuit 7 starts reading the return data, and determines the response content from the control circuit 16 on the key 4A, 4B side based on the subsequent return signal. It is supposed to.

On the other hand, as shown in FIG. 4, the reader / writer device 5 has basically the same configuration as the vehicle-side control device 1, that is, a control circuit 20 mainly composed of a microcomputer and a power amplifier 21. , Antenna coil 22a
And a resonance circuit section 22 having a resonance capacitor 22b,
A detection circuit 23, an amplifier 24, and a power supply circuit 25 for generating operating power from an external power supply, and a serial I / F 27 connected to a personal computer 26 (see FIG. 1) are provided.

The reader / writer device 5 is provided with an insertion portion 5a into which a key is inserted. The key 4A or 4B is inserted into the insertion portion 5a, and the antenna coil 22a of the reader / writer device 5 and the key 4A or 4B side are inserted. When the transponder coil 13a is electromagnetically connected to the transponder coil 13a, a transmission signal (a signal in which pulse data is superimposed on a power signal) from the antenna coil 22a of the reader / writer device 5 is transmitted to the transponder coil 13 of the keys 4A and 4B.
a in a non-contact manner.

In the transponder 3 on the keys 4A and 4B side, as in the case of the communication with the vehicle-side control device 1, AC power is supplied by the power signal. In response, a reply signal is returned to the reader / writer device 5.

When setting the date and time in the timepiece operating device 12 of the vehicle 2, the transponder coil 13a of the key 4A or 4B and the antenna coil 22a of the reader / writer device 5 are electromagnetically connected (hereinafter referred to as key). 4A is described as being electromagnetically connected), the personal computer 2
6 and an appropriate date and time (for example, 19XX
X / X / XX / XX)) by the reader / writer device 15
To enter. The reader / writer device 15 converts the input date and time into time setting information, and
a to the transponder coil 13a on the key 4A side.

The operator carrying the key 4A inserts the key 4A into the ignition key cylinder of the vehicle 2 at the time of the above-mentioned XX: XX on XX / XX / 19XX. The vehicle-side control device 1 of the vehicle 2 communicates with the transponder 3 of the key 4A to confirm the ID code), and starts the engine. In this case, the engine can be started when the ID code of the key 4A matches the ID code of the vehicle 2 by the immobilizer function. By the start of the engine, the time setting information is transmitted from the transponder 3 of the key 4A to the vehicle-side control device 1 of the vehicle 2, and the vehicle-side control device 1 provides the time setting information to the clock operating device 12. Then, the clock operating device 12 sets the time based on the time setting information.

In such an embodiment, the time setting information is recorded on the transponder 3 by the reader / writer device 5, and when the keys 4A, 4B are mounted on the vehicle 2, the time of the transponder 3 of the keys 4A, 4B is set. The setting information is provided to the vehicle-side control device 1, and the timepiece operating device 12 sets the time based on the time setting information given to the vehicle-side control device 1. A digital switch for setting the time is not required. In this case, in the present embodiment, the engine start is a command to start reading the time setting information from the transponder 3 of the keys 4A and 4B. However, this is performed by another method, for example, by providing a dedicated switch in the vehicle 2. Is also good. In this case, since only one dedicated switch is required, the cost can be reduced as compared with the case where a plurality of digital switches are provided.

[0023]

As is apparent from the above description, according to the present invention, the time setting information is recorded in the data carrier device of the key by the writer device, and the time setting information of the data carrier device is recorded when the key is mounted on the vehicle. To the vehicle-side control device, and the clock operating means sets the time based on the time setting information given to the vehicle-side control device. Therefore, the digital switch for setting the time to the clock operating means provided in the vehicle Becomes unnecessary.

[Brief description of the drawings]

FIG. 1 relates to one embodiment of the present invention, and is a diagram schematically showing an entire configuration.

FIG. 2 is a block diagram of an electric configuration of a vehicle-side control device.

FIG. 3 is a block diagram of an electrical configuration of a transponder.

FIG. 4 is a block diagram of an electrical configuration of the reader / writer device;

FIG. 5 is a diagram showing a communication waveform.

FIG. 6 relates to a conventional example and schematically shows the entire configuration.

[Explanation of symbols]

1 is a vehicle side control device, 2 is a vehicle, 3 is a transponder (data carrier device), 4A and 4B are keys, 5 is a reader / writer device (reader device, writer device), 7 is a control circuit, 9 is a resonance circuit unit. , 12 denotes a clock operation device (clock operation means), 13 denotes a transponder resonance circuit unit, 20 denotes a control circuit, and 22 denotes a resonance circuit unit.

Continued on the front page (72) Inventor Sadao Kokubu 1 Noda, Toyota, Oguchi-cho, Niwa-gun, Niwa-gun, Aichi Prefecture Tokai Rika Electric Works, Ltd.

Claims (1)

[Claims] 1. A vehicle-side control device mounted on a vehicle and transmitting operation information of the vehicle including time information, and a clock provided to transfer time information between the vehicle and the vehicle-side control device. Operating means, a data carrier device provided on a key of the vehicle and recording operation information transmitted from the vehicle-side control device; a reader device for reading operation information from the data carrier device; A writer device for recording setting information, wherein the data carrier device gives time setting information of the data carrier device to the vehicle-side control device when the key is mounted on the vehicle; A data carrier system wherein the side control device sets the time based on given time setting information.