JPH04315684A - Remote control device for vehicle - Google Patents

Abstract

PURPOSE:To display various states of a vehicle in a radio type remote control device for the vehicle. CONSTITUTION:The lock or unlock action information of the door of a vehicle is transmitted from an operation device 1 via radio waves. A receiving device 2 receives the signal, and the actuator of a lock/unlock control device 26 is driven to lock or unlock the door of the vehicle. The action result and various information of the vehicle are concurrently transmitted to the operation device 1. The operation device 1 receives the signal and once holds it in a memory 12, and the content is displayed on a display section 14 via the depression of a display operation button.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device for a vehicle, and more particularly to a remote control device capable of displaying the vehicle status.

0002

2. Description of the Related Art Door lock control devices for locking and unlocking vehicle doors without using a key are known. Known door lock control devices include a device using infrared rays as shown in Japanese Utility Model Application No. 61-181468, and a wireless door lock control device as shown in Japanese Patent Application Laid-Open No. 63-44089. Some of these door lock control devices are capable of locking or unlocking vehicle doors from a distance of more than ten meters.

0003

SUMMARY OF THE INVENTION In order for the inventor to check the condition of the vehicle, he or she can check the condition visually or by checking the display on the instrument panel of the dash panel. However, since it is not possible to check such a vehicle condition once the driver is away from the vehicle, it has not been possible to check this even when the vehicle is left with the door ajar, for example. Similarly, there is a demand for checking the on/off status of headlights, parking brake, vehicle gear position, door lock status, etc. from a distance from the vehicle.

The present invention has been made in view of the actual situation of the conventional remote control device, and a technical problem is to enable the vehicle status to be checked from a distance from the vehicle as necessary. do.

[0005]

[Means for Solving the Problems] The invention of claim 1 of the present application is a remote control device for a vehicle, which includes an operating device and a receiving device provided in a vehicle and receiving a signal from the operating device. includes an input means for inputting a lock/unlock operation, a transmitter for transmitting a certain code signal via radio waves in response to a lock or unlock input from the input means, and a receiver for receiving radio waves from a receiving device of the vehicle. The system is equipped with a receiving section that demodulates the coded signal obtained from the receiving section, a decoding circuit that decodes the coded signal obtained from the receiving section, and a display means that displays the vehicle status obtained from the decoding circuit. The device includes a receiving section that receives a lock or unlock signal from the operating device, a decoding circuit that decodes the coded signal from the receiving section, and locks and unlocks the vehicle door based on the output of the decoding circuit. and a transmitting unit that transmits vehicle signals including the door lock state of the vehicle door switch and the lock/unlock actuator as a fixed code signal by radio waves. . Further, the invention of claim 2 of the present application is a remote control device for a vehicle including an operating device and a receiving device provided in the vehicle and receiving a signal from the operating device, the operating device being configured to perform an operation for requesting transmission of vehicle status. a transmitter that transmits a certain code signal by radio waves in response to the input from the input means; a receiver that receives and demodulates the radio waves from the receiver of the vehicle; The receiving device on the vehicle side includes a decoding circuit that decodes the obtained coded signal and a display means that displays the vehicle status obtained from the decoding circuit.
a receiving unit that receives a vehicle status request signal from the operating device;
The present invention is characterized by comprising a decoding circuit that decodes the coded signal from the receiving section, and a transmitting section that transmits the vehicle state as a constant code signal by radio waves when the signal is obtained from the decoding circuit. It is something. Furthermore, in the invention of claim 3 of the present application, the input means has an input section for inputting a display operation, and the operating device holds the output of the decoding circuit and reads out the data by inputting the display operation of the input means to display the data. It is characterized by having a memory for displaying images.

[0006]

[Function] According to the invention of claim 1 of the present application having such characteristics, when a door of the vehicle is operated to lock/unlock using the operating device, the signal is transmitted by radio waves from the transmitting section. In the receiving device of the vehicle, the signal is received and decoded by the receiving section, and the door of the vehicle is locked or unlocked, and the status and various status signals of the vehicle are sent from the transmitting section. The operating device receives and decodes the signal, and displays various states including the locked state of the vehicle door on the display section. This allows the operator to check various vehicle conditions. Further, in the invention according to claim 2 of the present application, in response to the sending of the transmission request signal from the operating device, the state of each part of the vehicle is sent by radio waves as a fixed code signal from the receiving device of the vehicle. The operating device receives and decodes this signal, and the display means displays the vehicle status signal. Further, in the invention of claim 3 of the present application, the signal obtained from the receiving device of the vehicle is decoded and temporarily stored in the memory, and the data is read out in accordance with the operation of the input section for inputting the display operation and displayed on the display section. I am trying to display it in

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the overall structure of a remote control device for a vehicle according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an operating device thereof. In the figure, an operating device 1 is used to send a signal via radio waves to a receiving device 2 provided in a vehicle, and has an operating button 3. In this embodiment, the operation buttons 3 include a lock button 3a and an unlock button 3b for locking the doors, and a display button 3c (C) for displaying the vehicle status, as shown in FIG.
The outputs of the lock/unlocks 3a and 3b are given to the encoding circuit 4. The encoding circuit 4 is also supplied with the output of the key code setter 5. The key code setting device 5 is a setting device that includes a key code generator that generates a unique key code for each operating device, a nonvolatile memory that stores the key code, and the like. Now, in response to pressing the lock button 3a or unlock button 3b of the operation button 3, that signal and a certain code signal are provided to the encoding circuit 4. Encoding circuit 4 encodes this signal and transmits it to modulation amplification circuit 6. The modulation amplification circuit 6 performs, for example, FM modulation on the applied signal sequence and outputs it from the antenna 7 as a radio wave. Here, the encoding circuit 4, key code setting device 5, and modulation amplification circuit 6 constitute a transmitter 8 that transmits a code signal by radio waves in response to a lock/unlock operation input.

On the other hand, the antenna 7 is provided with a receiving circuit 10 for receiving FM radio waves transmitted from the receiving device 2 of the vehicle in response to an operation. The receiving circuit 10 is composed of a tuning circuit that tunes to the frequency of the radio waves of the receiving device 2, and an amplifier circuit and a demodulation circuit that amplify the output thereof, and the output thereof is given to the decoding circuit 11. The decoding circuit 11 decodes the signal matching the key code from the key code setting device 5, and its output is given to the memory 12. The memory 12 is for holding vehicle status data sent from the receiving device 2. The memory 12 is given the output of the display button 3c of the operation buttons 3. memory 1
2 reads out the data held when this signal is applied and supplies it to the display output circuit 13. Display output circuit 13
is for driving the display section 14. Here, the display section 14
As shown in FIG. 2 or 3, the display device is composed of, for example, a display such as a liquid crystal. A display section 13a displays the exterior shape of the vehicle and the door ajar state, display sections 13b and 13c display the locked/unlocked state, a display section 13d displays the gear position, and a display section 13e displays the lighting of the headlights.
, a display section 13f that displays that the remaining amount of fuel is low, and a display section 13g that displays when the parking brake is applied. Further, the operating device 1 is provided with a battery as a power supply circuit 15 for supplying power to each part.

As shown in FIG. 1, the receiving device 2 installed in the vehicle has an antenna 21, and a receiving circuit 22 is connected to the antenna 21. The receiving circuit 22 is a circuit that receives a signal from the operating device 1, and is composed of a tuning circuit, an amplifying circuit, and a demodulating circuit corresponding to the transmitted frequency. Now, the output of the receiving circuit 22 is given to the decoding circuit 23. A key code setting device 24 is connected to the decoding circuit 23 . The key code setting device 24 is set with the same key code as the key code setting device of the operating device 1, and based on this key code, it identifies whether or not the signal is sent from the corresponding operating device 1 and locks or locks the signal. It provides an unlock signal to the actuator drive circuit 25. The actuator drive circuit 25 drives the actuator of the lock/unlock control device 26 to lock or unlock each door of the vehicle. This remote control device also includes a switch 27 for detecting various states of the vehicle, such as a door switch 2 for detecting opening/closing of a door.
7a, gear position switch 27b, headlight switch 27c, remaining fuel switch 27d that provides output when fuel is low, parking brake switch 27 that provides output when parking brake is applied.
Each output of e is given to the operation information encoding circuit 28, respectively. A vehicle door lock or unlock signal is also provided to the operating state encoding circuit 28. Operation information encoding circuit 28
encodes signals of the locked/unlocked state and various states of the vehicle and supplies them to the encoding circuit 29. Encoding circuit 29
outputs this signal following the key code and sends it to the modulation amplification circuit 30.
give to The modulation amplification circuit 30 transmits the serial signal encoded by the encoding circuit 29, and its output is given to the antenna 21. Here, the operation information encoding circuit 28, the encoding circuit 29, the key code setting device 24, and the modulation amplification circuit 30 constitute a transmitting section 31 that transmits signals of various states of the vehicle by radio waves.

Next, the operation of this embodiment will be explained in FIGS. 3 and 4.
This will be explained with reference to. First, as shown in FIGS. 4(a) and 4(b), when the lock button 3a of the operating button 3 is pressed while the vehicle door is unlocked, the encoding circuit 4 generates a key code unique to the operating device 1. The function corresponding to the pressed button, in this case a lock signal, is transmitted to the receiving device 2 of the vehicle via the modulation amplification circuit 6. In the receiving device 2, this signal is received by the receiving circuit 22 via the antenna 21, and is applied to the decoding circuit 23. Decode circuit 23
Then, signals from other vehicles are identified based on the key code set by the key code setting device 24. If the key codes match, the lock/unlock control device 2
Actuator 6 is driven in the locking direction. The state of the door after being locked or unlocked is then given to the operation information encoding circuit 28. The operation information encoding circuit 28 is supplied with signals from various switches 27a to 27e, such as the door switch 27a. Then, a signal indicating the switch state of each part of the vehicle, including the key code and the locked/unlocked state, is outputted from the antenna 21 via the modulation amplification circuit 30, as shown in FIG. 4(d).

On the other hand, in the operating device 1, this signal is sent to the receiving circuit 1.
0 and decoded by the decoding circuit 11. The signal is then decoded and stored in the memory 12 as shown in FIG. 4(e). Then, when the lock/unlock signal is sent from the receiving device 2, various signals of the vehicle including the lock/unlock control state corresponding to the lock/unlock signal will be sent and held in the memory 12. Thereafter, when the display button 3c of the operation button 3 is pressed as shown in FIGS. 4(f) and 4(g), the contents of the memory 12 are read out and displayed on the display section 14 via the display output circuit 13. In this way, even when the operating device 1 is moved to a position away from the receiving device of the vehicle, the state of the vehicle can be checked at any time.

Similarly, when the unlock button 3b is pressed and the vehicle is in the unlocked state, data of each switch including the unlocked state is sent from the receiving device 2 to the operating device 1 side by a signal from the receiving device 2 of the vehicle. be done. Therefore, by retaining this data in the memory 12, the state of the vehicle can be recognized at any time even if the vehicle is far away from communication.

In this embodiment, the lock/unlock control device and the vehicle status display device are integrated;
Without using the unlock control device, only the vehicle state signal may be sent from the receiving device in response to a transmission request from the operating device. In this case, the receiving device receives and decodes this signal, and then sends out the output of each switch, that is, the vehicle status signal, via the encoding circuit and the modulation amplification circuit. The operating device receives this signal and temporarily stores the vehicle status in memory. Then, when the display button is pressed, the contents of the memory can be read out and displayed on the display section. Furthermore, even if a transmission request signal is sent, if the distance is such that it cannot be received, only an error state will be displayed.

In this embodiment, a lock/unlock button and a display button are provided as input means, and a memory is also provided in the operating device 1 so that the contents of the memory can be read by pressing the display button. It is also possible to configure the system so that vehicle status data obtained each time the lock/unlock button is pressed or when a button that sends a transmission request signal is pressed is immediately displayed without providing a button or memory. Furthermore, although this embodiment uses only switch signals such as door switches and gear position switches to indicate the status of each part of the vehicle, analog signals such as mileage, remaining fuel level, window opening/closing position, etc. may also be sent. It is possible.

[0015]

Effects of the Invention As described above in detail, according to the invention of claim 1 of the present application, when a vehicle door is locked or unlocked using a wireless operating device for locking/unlocking, the vehicle It receives switch signals from each part of the system and displays these signals. Therefore, the condition of the vehicle can be checked from outside the vehicle. Further, in the invention of claim 2 of the present application, various states of the vehicle can be recognized by sending out the transmission request signal. Furthermore, in the invention of claim 3 of the present application, the signal obtained from the receiving device is temporarily held in the memory. By displaying the contents of the memory when a display operation is input, the vehicle status can be easily recognized even in remote locations where communication is not possible.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall configuration of a vehicle remote control device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an example of the operating device according to the present embodiment.

FIG. 3 is a diagram showing an example of display on the display unit of the operating device according to the embodiment.

FIG. 4 is a time chart showing the output of a signal from the operating device 1 and a corresponding signal from the receiving device.

[Explanation of symbols]

1 Operating device 2 Receiving device 3 Operating button 3a Lock button 3b Unlock button 3c Display button 4 Encoding circuit 5 Key code setting device 6 Modulation amplification circuit 7, 21 Antenna 8, 31 Transmitting unit 10, 22 Receiving circuit 11, 23 Decoding Circuit 12 Memory 13 Display output circuit 14 Display section 25 Actuator drive circuit 26 Lock/unlock control device 27a Door switch 27b Gear position switch 27c Headlight switch 27d Remaining fuel level switch 27e Parking brake switch 28 Operation information encoding circuit 29 Encoding Circuit 30 Modulation amplification circuit

Claims (3)

[Claims] 1. A vehicle remote control device including an operating device and a receiving device provided in a vehicle and receiving a signal from the operating device, wherein the operating device inputs a lock/unlock operation. an input means, a transmitter that transmits a certain code signal via radio waves in response to a lock or unlock input from the input means, and a receiver that receives and demodulates radio waves from a receiver of the vehicle;
It comprises a decoding circuit that decodes the coded signal obtained from the receiving section, and a display means that displays the vehicle state obtained from the decoding circuit,
The vehicle-side receiving device includes a receiving section that receives a lock or unlock signal from the operating device, and a decoding circuit that decodes the coded signal from the receiving section.
A door lock actuator locks and unlocks the doors of the vehicle based on the output of the decoding circuit, and vehicle signals including the door lock state of the vehicle door switch and lock/unlock actuator are transmitted as a fixed code signal by radio waves. A remote control device for a vehicle, comprising: a transmitting section that transmits a message. 2. A vehicle remote control device including an operating device and a receiving device provided in a vehicle and receiving a signal from the operating device, wherein the operating device inputs an operation requesting transmission of vehicle status. a transmitter that transmits a certain code signal by radio waves in response to the input from the input means, a receiver that receives and demodulates radio waves from the receiver of the vehicle, and the receiver. a decoding circuit that decodes a coded signal obtained from the
display means for displaying the vehicle state obtained from the decoding circuit, and the vehicle-side receiving device includes a receiving section that receives a vehicle state request signal from the operating device; for a vehicle, comprising: a decoding circuit that decodes a coded signal; and a transmitter that transmits a vehicle state as a constant code signal by radio waves when the signal is obtained from the decoding circuit. remote control device. 3. The input means has an input section for inputting a display operation, and the operation device holds the output of the decoding circuit and reads out the data according to the display operation input of the input means to display the display operation on the display means. 3. The vehicle remote control device according to claim 1, further comprising a memory for displaying information on the vehicle.