JP2593370Y2 - Panel mountable audio system for vehicle - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle acoustic device for detachable panel, and more particularly to an on-vehicle acoustic device for detachable panel suitable for preventing data reading error for recognizing whether or not the panel fits when the panel is mounted. Related to the device.

[0002]

2. Description of the Related Art As a conventional panel mountable vehicle-mounted acoustic device, a microcomputer mounted on the panel operates when the panel is mounted on the device main body, and sends recognition data to the microcomputer on the device main body side to transmit the recognition data to the microcomputer. Although pass / fail was recognized, the transmission of data recognizing this panel was 1
This is performed only once, and the data recognition determination is performed only once.

[0003]

However, in the above-mentioned conventional panel mounted / removable audio apparatus for mounting on a vehicle, when the panel is mounted on the apparatus main body, recognition data for pass / fail of the panel is transmitted from the panel side to the apparatus main body only once. When the recognition data is sent from the panel to the main unit, if the recognition data is erroneously read on the main unit side due to some trouble, the device will not operate. there were.

The present invention has been made in view of the above points, and aims at solving the drawbacks of the prior art and increasing the chances of transmitting recognition data to be transmitted from the panel side to the apparatus main body side. It is an object of the present invention to provide an in-vehicle acoustic device for detachable panel which prevents an inoperative state of the device due to a reading error of the device.

[0005]

SUMMARY OF THE INVENTION A panel-removable on-vehicle audio device of the present invention is detachable from a device main body, and when mounted on the device main body, recognition data from a panel-side microcomputer is determined by a predetermined number of times . sent to the microcomputer, in the configuration panels removable vehicle audio device to allow operation of the device to recognize whether the adapted panel, panels in the mounted state in the apparatus main body, by manipulating equipped in the panel To turn on the power
By operating the power ON operation key, the microcomputer on the panel side sends the recognition data to the microcomputer on the main body of the apparatus , followed by the operation function data of the intended operation of the key.
It is provided with a recognition data sending means for sending the data.

[0006]

According to the present invention, the recognition data is sent from the microcomputer on the panel side to the microcomputer of the apparatus body a predetermined number of times when it is attached to and detached from the apparatus body and mounted on the apparatus body, and whether or not the panel is a compatible panel is recognized. In a panel detachable on -vehicle acoustic device configured to allow the operation of the device, the panel is mounted on the device main body ,
The power is on by operating the panel
By operating the power ON operation key, the microcomputer on the panel side transmits the recognition data to the microcomputer on the main body of the apparatus , followed by the operation of the intended operation of the key.
Since recognition data transmission means for transmitting function data is provided, an opportunity to transmit recognition data from the panel to the main unit
As a result, the reading error of the recognition data can be prevented.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a panel-removable on-vehicle acoustic device according to the present invention will be described with reference to FIGS. In FIG. 2, reference numeral 1 denotes a microcomputer which is provided on the panel side and operates by receiving power supply from the apparatus main body when the panel is mounted on the apparatus main body, 2 denotes a power ON operation key mounted on the panel, 3 denotes an apparatus A microcomputer (B) provided on the main body side for reading recognition data transmitted from the panel side and function data by key operation of the panel, 4 is a panel power supply switch, 5 is a panel when the panel is mounted on the apparatus main body,
This is a panel detection switch that sends a signal indicating completion of mounting to the microcomputer (B) 3.

The microcomputers (A) 1 and (B) 3 comprise a central processing unit for performing data arithmetic processing, a ROM for storing a program to be executed, a RAM for storing data, and an input / output port. Power ON
The operation key 2 and operation keys on a panel (not shown) transmit recognition data and operation function data to the input port of the microcomputer (A) 1 and to the microcomputer (B) 3 on the apparatus main body side from the microcomputer (A) 1. The data lines to be transmitted are connected to output ports of the microcomputer (A) 1 respectively.

A data line from the panel detection switch 5 and the microcomputer (A) 1 is connected to an input port of the microcomputer (B) 3, and is connected to the panel power supply switch 4 and each circuit in the apparatus main body (not shown). The control signal outputs are connected to output ports of the microcomputer (B) 3 respectively.

When the panel is mounted on the main body, the panel detection switch 5 of the invented panel-mounted acoustic device is turned on to send a signal of the ground level to the microcomputer (B) 3, and this grounding is performed. Upon receiving the level signal, the microcomputer (B) 3 turns on the panel power supply switch 4 to supply power to the panel. The microcomputer (A) 1 which receives the power supply sends the recognition data stored in the ROM to the microcomputer (B) 3, and further operates the power ON operation key 2 on the panel to read the recognition data again. The data is transmitted to the computer (B) 3 and thereafter, the operation function data on the panel is transmitted to make the apparatus main body operative.

Next, the operation of the apparatus will be described with reference to the flowcharts of FIGS.

FIG. 3 is a flowchart of the operation on the panel side, and FIG. 4 is a flowchart of the operation on the apparatus main body side. When the panel is mounted on the apparatus main body, it is checked whether the panel detection switch 5 has been turned on (step S ₁ ).
Then, when turned on, the microcomputer (B) 3 sends a signal to the panel power supply switch 4 to turn on the panel power supply switch 4 and supply power to the panel (step S ₂ ).

When power is supplied to the panel, the microcomputer (A) 1 starts operating (step S ₃ ).
The recognition data stored sent to the microcomputer (B) 3 of the apparatus main body side in the OM (step S _4).

Next, a power ON operation key 2 provided on the panel (power ON state when operated by other key switches as well as a power ON switch, for example, a traffic information switch, FM, AM switch, etc.) is turned on. check whether it has been operated (step S _5), and sends the re-recognition data if it is operated to the microcomputer (B) 3 (step S _6).

[0015] After the recognition data is sent, this time operating function data on the original panel is transmitted similarly to the microcomputer (B) 3 (Step S _7), device starts operation on the basis of the operation function data (step S _8), and the flow ends.

The operation flow of the microcomputer (B) 3 on one device body will be described. The input of recognition data is awaited until the panel is mounted on the device body (step S ₁₀ ). When the recognition data is transmitted from the panel, the microcomputer (B) 3 receives the recognition data (step S ₁₁ ) and transmits the recognition data and the data stored in the ROM of the microcomputer (B) 3. comparing (step S _12), and the flow if the data does not match returns to step S _10, the panel if the matching check de detection for detecting the mounting mistakes (step S _13), once mounted was Although flow if it is outside at this time returns to step S _10, the device receives the operation function data from the panel if it is attached is in the normal operating condition (the scan -Up S _14, step S ₁₅₎ flow is terminated.

By increasing the number of times of sending the recognition data and increasing the number of confirmations, the operation error can be prevented accordingly.

As described above, the in-vehicle acoustic device of the present invention is a panel of an in-vehicle acoustic device for the purpose of preventing theft. More recognition data
Predetermined number of times sent to the microcomputer of the apparatus main body, in the configuration panels removable vehicle audio device to allow operation of the device to recognize whether the adapted panel, panels in the mounted state on a device main body , A power supply O that turns on the power supply by operating the panel
Recognition data from the microcomputer on the panel side to the microcomputer on the main unit by operating the N operation key
Since subsequently provided recognition data sending means for sending the operation function data of the operation for the purpose of the key, the panel
Opportunities to send recognition data to the main unit increase.
Accordingly, it is possible to prevent the recognition data from being read incorrectly.

[0019]

Advantages of the Invention According to the panel-attachable on-vehicle acoustic device according to the present invention, as described above, the chance of transmitting recognition data for recognizing the panel increases, and the operation becomes impossible due to erroneous recognition of the panel. There is an effect that defects can be eliminated.

In addition, the present invention has an excellent feature that the processing can be performed by software without significant improvement in the circuit configuration, so that the implementation is easy.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of the present invention.

FIG. 2 is a block diagram of a hardware configuration showing an embodiment of the present invention.

FIG. 3 is a flowchart showing a flow of operation on the panel side of the present invention.

FIG. 4 is a flowchart showing a flow of an operation of the device main body side of the present invention.

[Explanation of symbols]

 1 Microcomputer (A) 2 Power ON operation key 3 Microcomputer (B) 4 Panel power supply switch 5 Panel detection switch

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI H05K 10/00 H05K 10/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A panel-side microcomputer which can be attached and detached from an apparatus main body and recognizes recognition data when mounted on the apparatus main body.
Predetermined number of times sent to the microcomputer of the apparatus main body, in the configuration panels removable vehicle audio device to allow operation of the device to recognize whether the adapted panel, panels in the mounted state on a device main body , Operation equipped on the panel
By operating the power ON key, which turns on the power by operating the key, the microcomputer on the panel side sends the recognition data to the microcomputer on the main unit of the device following the operation of the key.
A panel-removable on-vehicle acoustic device comprising a recognition data transmitting means for transmitting operation function data of an operation intended for the key .