JPS6312017B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle operating signal transmitting/receiving device for transmitting and receiving operational signals between an automobile door and a vehicle body, and particularly relates to a transmitting and receiving device that transmits and receives operational signals using optical signals. It is something.

Recently, many electronic devices with advanced functions, such as drive computers and constant speed driving devices, have been installed in automobiles. These electronic devices mainly include an operating device equipped with switches for setting time data, driving data, etc., and a control device that responds to operating signals from this operating device, or compares this operating signal with detection values of various sensors. It consists of a control circuit that controls various indicators and actuators according to the values. It is desirable that the operating device among the components of this electronic device be placed around the driver's seat so that it is easy for the driver to operate it. Or the whole thing was installed on the driver's side door. In this case, an operation signal from the operating device is sent to a control circuit on the vehicle body side through an electric wire connecting the vehicle body and the door.

As mentioned above, in the past, operation signals were exchanged between the operating device installed on the door side and the control circuit installed on the vehicle body side through electric wires connecting the door and the vehicle body. There was a drawback that the electric wire was repeatedly bent and stretched during the opening/closing operation, and as a result, the electric wire could be cut. Further, when there are many operation signals from the operation device, a large number of electric wires are required for transmitting and receiving signals to and from the control circuit, which causes a problem in terms of space.

The present invention was made in order to eliminate the drawbacks of such conventional devices, and it is possible to transmit and receive operation signals between an operating device located on either the door or the vehicle body of a car and a control circuit located on the other side using light. The purpose of the present invention is to provide an automobile operation signal transmission and reception device that uses signals and eliminates the need for electric wires connecting the vehicle body and the door, thereby achieving space saving and high reliability.

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In FIG. 1, 1 indicates a plurality of switches 2a to 2a.
2d is an operating device operated by the driver or the like as necessary; 3 is an operating device 3 for encoding operation signals S1a to S1d from switches _2a to _2d on this operating device 1 into time-series electrical signals _S2 that are serial in time; 4 is a light emitting diode serving as an electro-optical converter that receives and drives this time-series electric signal S ₂ and sends out an optical signal S ₃ . 3. The oscillating circuit 5 consisting of the light emitting diode 4 is connected to the second
Although it is provided in the door 6 as shown in the figure, the time-series signal generating circuit 3 is not shown because it is buried in the door 6. In addition, 7 is a light emitting diode 4
A phototransistor 8 is a photoelectric converter that receives an optical signal S ₃ emitted by the phototransistor ₇ and converts it into an electrical signal S ₄ similar to the time-series electrical signal S ₂ described above. , a control circuit that outputs a control signal S _c that is predetermined and stored in response to the operation signals S _1a to S _1d from the operation device 1. is provided in the vehicle body 10 shown in FIG. 2, but the control circuit 8 is not shown in FIG. 2 because it is buried in the vehicle body 10.
Note that the light emitting diode 4 and the phototransistor 7
are arranged so that their respective optical axes coincide and face each other when the door 6 is closed, as shown in FIG.

Next, the operation of the illustrated embodiment having the above configuration is as follows.
When the door 6 is closed, that is, the light emitting diode 4
A case where signals can be exchanged between the phototransistor 7 and the phototransistor 7 will be explained.

If the driver wishes to set or cancel the vehicle speed of the constant speed traveling device (not shown), set the departure time of the drive computer (not shown), reset the trip meter, etc., the driver shall do so as necessary. Operate the switches 2a to 2d of the controller 1. By this operation, operation signals S _1a to S _1d are sent out from the operation device 1. The time series signal generation circuit 3 grasps the operating states of the switches 2a to 2d from these operation signals S _1a to _{S 1d} , converts them into time series electrical signals S ₂ that are serial in time, and sends them to the light emitting diode 4. The light emitting diode 4 receives the electrical signal _S2 and is driven to emit an optical signal _S3 . The light signal S ₃ emitted by the light emitting diode 4 is received by the phototransistor 7 , converted into an electric signal S ₄ corresponding to the time-series electric signal S ₂ , and input to the control circuit 8 . The control circuit 8 receives this electrical signal.
Based on _S4 , the operating state of the switches 2a to 2d of the controller 1 is determined, and a predetermined control signal _Sc corresponding to this operating state is output to the above-mentioned constant speed traveling device or drive computer. do. However,
This control signal S _c causes the drive computer to set the departure time, reset the trip meter, etc., and also drives the actuator in the constant speed driving system to set and release the vehicle speed.

In addition, in the above-mentioned operation, the time-series signal generation circuit 3 requires a power supply for operation, but since the power consumption of this time-series signal generation circuit 3 is small, a battery (not shown) dedicated to this circuit is required. It is possible to supply power by embedding it in the door 6. In that case, there are no electric wires between the door 6 and the vehicle body 10.

In the illustrated embodiment described above, a transmitting circuit 5 consisting of an operating device 1, a time-series signal generating circuit 3, and a light emitting diode 4 is provided in the door 6, and a phototransistor 7,
Although the receiving circuit 9 consisting of the control circuit 8 is provided in the vehicle body 10, it is also possible to provide these in the opposite manner, that is, the transmitting circuit 5 is provided in the vehicle body 10 and the receiving circuit 9 is provided in the door 6.
A similar effect can be expected even if it is provided in An example of a case where such a reverse installation is applied is a case where the power window device or automatic door lock device of the door 6 is driven by the operating device 1 disposed on the vehicle body 10. Moreover, although the above description has been made with reference to the door on the driver's seat side, the present invention is not limited to this door on the driver's seat side, and it goes without saying that it may be applied to other doors.

As described above, the vehicle operating signal transmission and reception device of the present invention is provided with a transmitting circuit consisting of an operating device, a time-series signal generation circuit, and an electro-optic converter on one side of the door or the vehicle body, and on the other side. , a receiving circuit consisting of a photoelectric converter and a control circuit was provided, and both converters were arranged facing each other so that the optical axes of the electro-optical converter and the photo-electric converter coincided with each other when the door was closed. This configuration eliminates the need for electric wires connecting the door and the vehicle body for transmitting operation signals from the operating device to the control circuit, and has the effect of increasing reliability without the problems caused by disconnections as in conventional devices. Furthermore,
The present invention has a configuration in which many operation signals from a switch on an operation device are converted into one time-series signal, and a pair of electro-optical converters and an opto-electric converter can exchange signals, and the above-mentioned It also has the effect of saving space since no electric wires are required.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the automobile operation signal transmitting/receiving device of the present invention, and FIG. 2 is a perspective view showing the state in which each component of the embodiment shown in FIG. 1 is attached to the automobile. 1... Operating device, 2a to 2d... Switch, 3...
...Time series signal generation circuit, 4...Light emitting diode (electro-optical converter), 5...Transmission circuit, 6...Door,
7...Phototransistor (photoelectric converter), 8...
...Control circuit, 9...Reception circuit, 10...Vehicle body. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. An operating device consisting of a plurality of switches, a time-series signal generation circuit that converts the operation signals from these switches into time-series electrical signals and outputs them, and a time-series signal generating circuit that outputs the time-series electrical signals on either the door or the vehicle body of the vehicle. an electro-optical converter that sends out an optical signal, and an opto-electric converter that converts the optical signal from the electro-optic converter into an electrical signal corresponding to the time-series electrical signal and sends it out; a control circuit that stores a control signal corresponding to the operation signal and outputs the control signal based on the electrical signal from the opto-electric converter; and when the door is closed, the electro-optic converter An operation signal transmission and reception device for an automobile, characterized in that both the photoelectric converters are disposed facing each other so that their optical axes coincide with each other.