JPH0578649U - In-vehicle audio system with removable panel - Google Patents

Abstract

(57) [Abstract] [Purpose] In an on-vehicle audio device with a removable panel, the number of times the recognition data is sent from the panel to the device body when the panel is attached to the device body is increased to improve the device (EN) Provided is a panel detachable vehicle-mounted acoustic device that prevents a non-operation. A structure is provided in which a microcomputer (A) 1 on the panel side is provided with a recognition data transmitting means for retransmitting the recognition data by operating a power-on operation key 2 on the panel after mounting the panel on the apparatus body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a panel detachable vehicle-mounted audio device, and more particularly, to a panel detachable vehicle-mounted audio device suitable for preventing an erroneous reading of data for recognizing the suitability of the panel when the panel is mounted.

[0002]

[Prior art]

 In a conventional panel-mountable audio device for a vehicle, a microcomputer installed on the panel side operates when the panel is attached to the device body and sends recognition data to the microcomputer computer on the device body side to check whether the panel is acceptable or not. Although I was aware, the data for recognizing this panel was sent only once, and the judgment for recognizing the data was made only once.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional panel detachable vehicle-mounted audio device, when the panel is mounted on the device body, the recognition data for the panel pass / fail is sent from the panel side to the device body side only once to judge the recognition. Therefore, if the recognition data is mistakenly read on the device body side due to some trouble when the recognition data is sent from the panel to the device body, there is a drawback that the device does not operate.

The present invention has been made in view of the above points, and an object thereof is to solve the drawbacks of the conventional example and increase the recognition mechanism of the recognition data transmitted from the panel side to the apparatus main body side. An object of the present invention is to provide a panel wearable on-vehicle audio device that prevents the device from malfunctioning due to data reading errors.

[0005]

[Means for Solving the Problems]

 The in-vehicle removable audio device of the present invention is a panel of an in-vehicle audio device for the purpose of preventing theft, and is detachable from the main body of the device, and when attached to the main body of the device, the recognition data is transmitted from the microcomputer on the panel side to the main body of the device. Of the detachable panel type car audio system configured to allow the operation of the device by recognizing whether it is a compatible panel or not, the power ON key equipped on the panel when the panel is attached to the device body. A recognition data sending means is provided for sending the recognition data from the microcomputer on the panel side to the microcomputer on the main body of the device by the operation of.

[0006]

[Action]

 According to this invention, a panel of an on-vehicle audio device for the purpose of preventing theft, which is detachable from the main body of the device and sends recognition data to the microcomputer of the main body of the device when attached to the main body of the device. In a removable panel-type on-vehicle audio device that is configured to recognize whether it is a conforming panel or not and to permit operation of the device, it is possible to operate the power ON key equipped on the panel when the panel is attached to the device body. Therefore, since the recognition data sending means for sending the recognition data from the microcomputer on the panel side to the microcomputer on the device body is provided, the recognition data can be read by increasing the number of times of sending the recognition data from the panel to the device body side. You will be able to prevent mistakes.

[0007]

【Example】

 An embodiment of a panel detachable vehicle-mounted audio device according to the present invention will be described with reference to FIGS. In FIG. 2, reference numeral 1 denotes a microcomputer (A) which is provided on the panel side and operates by receiving power from the apparatus main body when the panel is attached to the apparatus main body, 2 a power-on operation key provided on the panel, 3 a device Microcomputer (B), which is provided on the main unit side and reads the recognition data sent from the panel side and the function data by the key operation of the panel (4), 4 is a switch for supplying power to the panel, and 5 is a panel attached to the main body of the device. It is a panel detection switch that sends a completion signal to the microcomputer (B) 3.

Further, the microcomputers (A) 1 and (B) 3 are composed of a central processing unit for performing arithmetic processing of data, a ROM storing a program to be executed, a RAM storing data and an input / output port. The power ON operation key 2 and the operation keys on the panel (not shown) are recognized by the input port of the microcomputer (A) 1 and by the microcomputer (B) 3 on the main body side of the microcomputer (A) 1. The data lines for transmitting the operation function data are connected to the output port 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 to a panel power supply switch 4 and each circuit in the apparatus main body (not shown). The control signal outputs are connected to the output ports of the microcomputer (B) 3, respectively.

When the panel is attached to the main body of the in-vehicle audio device of the present invention, the panel detection switch 5 is turned on to send a ground level signal to the micro computer (B) 3. In response to the ground level signal, the microcomputer (B) 3 turns on the panel power supply switch 4 to supply power to the panel. The microcomputer (A) 1 that has received the power supply sends the identification data stored in the ROM to the microcomputer (B) 3, and further operates the power ON operation key 2 on the panel to obtain the identification data again. The data is sent to the microcomputer (B) 3 and then the operation function data on the panel is sent to put the apparatus main body into the operating state.

Next, the operation of this apparatus will be described based on the flowcharts of FIGS. 3 and 4.

FIG. 3 is a flow chart of the panel side operation, and FIG. 4 is a flow chart of the apparatus main body side operation. When a panel is attached to the main body of the apparatus, it is checked whether or not the panel detection switch 5 is turned on (step S ₁ ), and when it is turned on, the microcomputer (B) 3 sends a signal to the panel power supply switch 4 and the panel is turned on. The power supply switch 4 is turned on to supply power to the panel (step S ₂ ).

When power is supplied to the panel side, the microcomputer (A) 1 starts operation (step S ₃ ), and the recognition data stored in the ROM is transferred to the microcomputer computer (B) 3 on the apparatus body side. and it sends to the (step S _4).

Next, the power-on operation key 2 mounted on the panel (if the power-on switch is operated by any other key switch, the power is turned on. For example, traffic information switch, FM, AM switch, etc. ) checks whether has been operated (step S _5), and you sent again recognized data if it is operated to the microcomputer (B) 3 (step S _6).

After the recognition data is transmitted, the original operation function data on the panel is similarly transmitted to the microcomputer (B) 3 (step S ₇ ), and the device operates based on the operation function data. starts (step S _8), and the flow ends.

In addition, the operation flow of the microcomputer (B) 3 on one side of the main body of the apparatus will be described. Until the panel is attached to the main body of the apparatus, the recognition data is on standby for input (step S ₁₀ ) When the recognition data is sent from the panel, this recognition data is accepted by the microcomputer (B) 3 (step S ₁₁ ) and stored in the ROM of the microcomputer (B) 3 and sent. and in that the data comparison (step S _12), the flow if the data does not match returns to step S _10, the if they coincide panel checks the de-detection for detecting the mounting mistakes (step-up S _13), the flow if it is outside in but once fitted which point the process returns to step S _10, apparatus receives operation function data from the panel if it is attached is in the normal operating condition (Step S _14, step S ₁₅₎ flow ends.

Incidentally, if the number of times of sending the recognition data is increased and the number of times of confirmation is increased, it is possible to prevent the operation error.

As described above, the panel detachable vehicle-mounted acoustic device of the present invention is a panel of a vehicle-mounted acoustic device for the purpose of preventing theft, and is detachable from the device body and is mounted on the device body by a microcomputer on the panel side. A detachable panel type on-vehicle audio device that is configured to send more recognition data to the computer of the main body of the device to recognize whether it is a compatible panel or not and to allow the device to operate. It is equipped with a recognition data sending means that sends the recognition data from the microcomputer on the panel side to the microcomputer of the main body of the device by operating the power ON key equipped in the.

[0019]

[Effect of the device]

 Since the panel detachable vehicle-mounted acoustic device according to the present invention is configured as described above, it has the following effects. By increasing the number of times the recognition data is sent to recognize the panel, it is possible to eliminate the problem of inoperability due to incorrect recognition of the panel.

Moreover, it has an excellent feature that it can be implemented easily because it can be processed by software without significant improvement in the circuit configuration.

[Brief description of drawings]

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

FIG. 2 is a hardware configuration block diagram 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 operations on the apparatus 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

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H05K 10/00 7128-4E

Claims (1)

[Scope of utility model registration request] 1. A panel of an on-vehicle audio device for the purpose of preventing theft, which is detachable from the main body of the apparatus, and when attached to the main body of the apparatus, recognition data is sent from the microcomputer on the panel side to the microcomputer of the main body to adapt. In a removable panel-type on-vehicle audio device configured to recognize whether it is a panel or not and permit the operation of the device, a power source O mounted on the panel when the panel is attached to the device main body
A panel detachable vehicle-mounted acoustic device, comprising: a recognition data transmitting means for transmitting recognition data from a microcomputer on the panel side to a microcomputer of a main body of the device by operating an N key.