JPH064898U - Operation recording device - Google Patents

Abstract

(57) [Summary] [Purpose] Rewriting software and vehicle specifications is possible. [Configuration] A terminal for transmitting soft data via a communication interface is provided, an EEP ROM for storing the soft data is provided, and a measurement routine related to, for example, a speed sensor stored in the EEP ROM is provided to a speed sensor and an engine rotation sensor. Rewrite the measurement routine.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a vehicle equipped with a ram that stores a signal from a sensor via an interface, a ROM that has a program for operation recording, and a communication interface that outputs the content stored in the ram. Recording device

[0002]

[Prior art]

 Various operation recording devices are known, for example, JP-A-54-679, JP-A-58-146815, JP-A-60-159310, JP-A-3-44418, and JP-A-Kaihei. Japanese Patent Publication No. 3-15332 is disclosed.

[0003]

[Problems to be solved by the device]

 The conventional operation recording device is executed by the original software stored in the built-in ROM, and changing the software requires the creation of the ROM and the installation of the created ROM, which requires a large amount of cost. It costs.

Therefore, when the contents of data collection and the contents of processing differ depending on the customer or vehicle, different ROMs must be prepared. In addition, it is not possible to cope with the increase of new data input channels or exchange of data with other units.

An object of the present invention is to provide an operation recording device capable of rewriting software and vehicle specifications.

[0006]

[Means for Solving the Problems]

 According to the present invention, the operation provided with the ram for storing the measurement data and the like from the signal from the sensor through the interface, the ROM having the operation recording program, and the communication interface for outputting the content stored in the ram. In the recording device, a terminal for transmitting soft data via the communication interface is provided, and an EEPROM for storing the soft data is provided.

[0007]

[Action]

 In the operation recording device configured as described above, the terminal receives, for example, the soft data stored in the electronic notebook or the IC card, and the received data is stored in the EEP ROM via the communication interface. .

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, a device main body 1 includes a central processing unit (CPU) 2, an electrically erasable / writable read-only memory, that is, an EEPROM (EEPROM) 3, a ROM (ROM) 4, and a RAM (RAM). ) 5 are provided in series. An ignition switch 8 and sensors 11 such as a speed sensor 9 and an engine rotation sensor 10 are connected to the central processing unit 2 via an interface 6. A terminal 12 is connected to the ram 6 via a communication interface 7, and a power source 13 is connected to each of these members 2 to 7.

Next, a control mode will be described with reference to FIG.

The apparatus body 1 is activated by turning on the power supply 13, and determines whether or not the ignition switch 8 is OFF (step S1). In the case of NO, that is, when the switch 8 is ON, measurement from the sensors 11 is enabled (step S2), and the measurement data of the sensors 11 is transferred to the ram 5 via the interface 6 by the measurement routine (step S3). Record.

If step S1 is YES, that is, if the switch 8 is OFF, it is determined whether there is communication data, that is, vehicle measurement data and software data (step S4). If NO, the process returns, and if YES, the measurement is stopped (step S5), and it is determined whether or not the communication data is the measurement data (step S6). If YES, all measurement data is transmitted to the terminal 12 (step S7), and it is determined whether the data is over (step S8). If NO, the process returns to step S7, and if YES, the process returns.

If step S6 is NO, that is, if the communication data is, for example, an electronic notebook or an IC card program, that is, software data, the new software data is transmitted from the terminal 12 to the EEPROM 3, The previous software is rewritten (step S9) and it is determined whether the data is over (step S10). If NO, the process returns to step S9, and if YES, the process returns.

As a result, as shown in FIG. 3, the previous measurement routine R1 relates to the speed sensor 9 and records the speed at that time in the ram 5 via the interface 6 from the speed sensor 9. As shown in FIG. 4, a new measurement routine R2 for the speed sensor 9 and the engine rotation sensor 10 was rewritten, and the speed and engine rotation at that time were changed to the ram 5 via the interface 6 from the speed sensor 9 and the engine rotation sensor 10. It can be recorded.

[0015]

[Effect of device]

 Since the present invention is configured as described above, it is possible to easily and inexpensively rewrite the software in the device and record the operation with the contents intended by the user. Therefore, the processing contents can be added or changed with the same device.

[Brief description of drawings]

FIG. 1 is a control block diagram of an embodiment of the present invention.

FIG. 2 is a control flowchart.

FIG. 3 is an explanatory diagram of a measurement routine before change.

FIG. 4 is an explanatory diagram of a changed measurement routine.

[Explanation of reference symbols] R1, R2 ... Measurement routine 1 ... Device body 2 ... Central processing unit 3 ... EEP ROM 4 ... ROM 5 ... Ram 6 ... Interface 7 ...・ Communication interface 8 ・ ・ ・ Ignition switch 9 ・ ・ ・ Speed sensor 10 ・ ・ ・ Engine rotation sensor 11 ・ ・ ・ Sensors 12 ・ ・ ・ Terminal 13 ・ ・ ・ Power supply

Claims (1)

[Scope of utility model registration request] 1. An operation recording device comprising a ram for storing a signal from a sensor via an interface, a ROM having a program for recording an operation, and a communication interface for outputting the content stored in the ram, An operation recording device comprising a terminal for sending soft data via a communication interface and an EEP ROM for storing the soft data.