JPH02221575A - On-vehicle remote control device - Google Patents

Abstract

PURPOSE:To form a device in small size and light weight by providing in a transmitter a permanent magnet actuating a reed switch in a receiver with power in its side received to a side of the transmitter by an electromagnetic coupling system or the like. CONSTITUTION:When a transmitter 1 is placed approaching a receiver 13, a permanent magnet 2, provided in the transmitter 1, actuates the receiver 13 in its reed switch 14 feeding its output to a power feed part 26 through a control part 21. Next from the power feed part 26 to a power receiving part 3 of the transmitter 11, power is transmitted by an electromagnetic coupling system or the like. Subsequently, this power is converted in a rectifier smoothing circuit 6 into DC power actuating a transmitting part 7. The transmitting part 7 feeds a predetermined code signal received by the receiver 13, and the signal, after it is discriminated by an agreement discriminating means 16, is utilized for a desired remote control of locking and unlocking a door. In this way, the receiver 13 can be formed in a closed structure while eliminating the necessity for providing a battery in the transmitter 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a remote control device that uses a transmitter to send a signal to a vehicle to lock or unlock doors and trunks, and particularly relates to a remote control device that uses a transmitter to lock or unlock doors and trunks, and particularly to a remote control device that uses a transmitter to lock or unlock doors and trunks. The present invention relates to a remote control device for a computer.

[Conventional technology]

Conventionally, for example, a remote control device disclosed in Japanese Patent Application Laid-Open No. 62-101771 has a transmitter equipped with a battery, which sends out a predetermined code through an output means by operating a push button switch or the like, and is installed in a vehicle. is given to the receiver. If the signal matches a predetermined code, the doors of the vehicle are locked or unlocked.

[Problem to be solved by the invention]

Therefore, in such a conventional door rotor control device, a battery is required for the transmitter, and when a secondary battery is used, there is a drawback that it takes time and effort to replace the battery. Furthermore, even if a secondary battery is used, when the battery becomes depleted, it is necessary to charge it as necessary, and there is a drawback that charging takes time and effort. When the battery is exhausted, the transmission output decreases or transmission becomes impossible, making it impossible to lock or unlock the vehicle's doors and perform necessary operations even when holding the transmitter. However, there was also the problem that it could actually be inconvenient. Furthermore, when a primary battery is provided in the transmitter, the case must be opened and closed in order to replace the primary battery, which also has the drawback of requiring waterproof measures.

The present invention has been made in view of the problems of conventional remote control devices, and a technical problem is to enable a transmitter to transmit a predetermined code when necessary without requiring a battery. shall be.

[Means to solve the problem]

The present invention is a remote control device that includes a receiver installed in a vehicle and a transmitter that sends a signal to the receiver, the transmitter including a permanent magnet and a power receiving section that is provided on the surface and receives power. , a transmitting section that sends out a predetermined code signal using the power obtained from the power receiving section; a control unit that starts power transmission from the power transmission unit by a switch output of a reed switch; a reception unit that receives a code signal obtained from the transmitter; and a code signal obtained from the reception unit and a preset code signal. The invention is characterized in that it has a match determination means for determining a match.

[Effect]

According to the present invention having such characteristics, when the transmitter is brought close to the receiver, the reed switch of the receiver is operated by the permanent magnet of the transmitter, and the switch output is supplied to the power transmission section via the control section. It will be done. Then, power is transmitted from the power transmitting section to the power receiving section of the transmitter. The transmitter obtains DC power by rectifying and smoothing this power, and transmits a predetermined code signal. On the receiver side, this code signal is received by a receiving section, and a match determining means determines whether the code signal matches a preset code signal.

〔Effect of the invention〕

Therefore, according to the present invention, a predetermined code signal can be transmitted within the transmitter using the power obtained from the receiver side only when necessary, so batteries are not required and it is possible to reduce the size and weight. Become.

Furthermore, there is no need to replace or charge batteries, making handling extremely easy.

Furthermore, since there is no need to provide a switch for starting transmission, the transmitter itself can have an airtight structure.

[Explanation of Examples]

FIG. 1 is a block diagram showing the overall configuration of a vehicle-mounted remote control device according to an embodiment of the present invention, and FIG. 2 is a side view showing a door portion of the vehicle. In these figures, a transmitter 1 is provided with a permanent magnet 2 on its surface, and a power receiving section 3 for receiving electric power is provided on its surface. As shown in the figure, the power receiving unit 3 has a coil 5 wound around a core 4 and a rectifying/smoothing circuit 6 that rectifies and smoothes the alternating current voltage obtained at both ends of the coil 5. The power obtained from the rectifying/smoothing circuit 6 is applied to the code signal generating section 8 of the transmitting section 7, the output section 9, and the timer 10. The code signal generator 8 generates a predetermined code signal at each predetermined timing obtained from the timer IO, and its output is given to the output unit 9. The output section 9 transmits a code signal given by driving, for example, an infrared light projecting element to a receiving section provided in the vehicle.

Now, on the front side of the vehicle, a receiver 13 having a reed switch mounting surface 12a and a power transmission/light receiving surface 2b is provided on the side of the doorknob 11. As shown in FIG. 1, a reed switch 14 is provided behind the reed switch mounting surface 12a. One end of the reed switch 14 is connected to a power supply end, and the other end is grounded via a resistor R1. Further, behind the power transmission/light receiving surface 12b, there is provided a receiving section, in this embodiment, a light receiving section 15 that includes a light receiving element that receives infrared light and converts the signal into an electrical signal, and its output is used for coincidence determination. means 16. The coincidence determining means 16 has a coincidence determining section 17 and a code setting section 18, and determines whether the received signal matches the code signal set by the code setting section 18, and the determination output is The signal is applied to the lock/unlock drive section 20 and the control section 21 . The lock/unlock drive section 20 is given a signal from a lock state determination section 23 that determines the locked state of the door. The lock/unlock driving section 20 drives the door lock motor 22 in the locking or unlocking direction based on the lock state using a coincidence determination signal. On the other hand, the control section 21 is supplied with the switch signal from the reed switch 14 and the coincidence signal from the coincidence determination section 17 . The control unit 21 is realized by, for example, a microcomputer, and controls to start power transmission in response to a switch signal from a reed switch, and to stop power transmission in response to a coincidence determination signal. The control unit 21 has an output transistor 24 as an output means and a relay 25 that is energized when the output transistor 24 is conductive. The contact point of the relay 25 is the power supply terminal of the vehicle and the D of the power transmission section 26.
It is connected between the C-AC inverter 27 and the C-AC inverter 27 . D.C.
- The AC inverter 27 converts the supplied power into an alternating current voltage, and its output is applied to a coil 29 wound around the core 28. The core 28 is attached to the power transmission/light receiving surface 12b of the vehicle described above.

FIG. 3 is a flowchart showing the operation of the control section 21. In this figure, when the control unit 21 starts operating, it waits for a signal from the reed switch 14 in step 31. Now, the transmitter 1 is attached to the reed switch mounting surface 1 shown in Figure 2.
2a and the power transmission/light receiving surface 12b, the reed switch 14 is turned on by the permanent magnet 2 and a switch signal is transmitted to the control section 2'1. Then, the process advances from step 31 to steps 32 and 33, where the error counter is cleared and power transfer is started. Power transfer energizes relay 25 by making transistor 24 conductive. In this way, the DC-AC inverter 27 is energized, an alternating current flows through the coil 29, and power is transmitted. When power is transmitted, the alternating current is also induced in the coil 5 of the transmitter l, and a direct current voltage is obtained by the rectifier/smoothing circuit 6. Then, power is applied to the transmitting section 7, and the code signal is converted by infrared light or the like and sent out from the code signal generating section 8 at predetermined time intervals. Now, after starting the power transmission, the control unit 21
In steps 34 and 35, the process waits to see if a determination result is obtained or if a time-up occurs.

On the receiver 13 side, this signal is received by the light receiving section 15,
A match determining unit 17 determines whether the received light signal matches a preset code signal. If the discrimination result is obtained, it is checked whether a matching signal is obtained (step 36).

If a matching signal is obtained, the process proceeds to step 37, where the transistor 24 is turned off and power transmission is stopped (step 37).
, after a predetermined time has elapsed (step 38), the process returns to step 31. If a mismatch signal is obtained from step 36, the process proceeds to step 39, where the error counter is incremented, and after a predetermined period of time, it is checked whether the counter has timed up (step 41). If the time has not been amplified, the process returns to the loop of steps 34 and 35 and repeats the same process, and if the time has elapsed, the process proceeds to step 42 to stop power transmission. Then, the process waits until the reed switch is turned off (step 43) and returns to step 31.

As described above, according to the present invention, the vehicle door can be locked or unlocked by automatically transmitting a predetermined code signal simply by bringing the transmitter close to the front surface of the vehicle door.

Although this embodiment uses an electromagnetic coupling method to transmit power, it is also possible to transmit power by other methods.

Further, although this embodiment describes a remote control device for controlling locking and unlocking of vehicle doors, the present invention can be applied to other parts such as opening and closing a trunk.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall configuration of a remote control device according to an embodiment of the present invention, FIG. 2 is a side view showing a door portion of a vehicle, and FIG. 3 is a flow chart showing its operation. 1.--Transmitter 2.--.Permanent magnet 3.-
・-Power receiving section 7--・--・Transmitting section 13-----
---Receiver 14--Reed switch 15-
--- Light receiving section 16 --- One-defeat determination means 21 --- Control section 26 --- Power transmission section Patent applicant Tateishi Electric Co., Ltd. agent Patent attorney Yoshiki Okamoto ( 1 other person)

Claims (1)

[Claims] (1) In a remote control device that includes a receiver installed in a vehicle and a transmitter that provides a signal to the receiver, the transmitter includes: a permanent magnet; a power receiving section that is provided on the surface and receives power; a transmitting section that sends out a predetermined code signal using the power obtained from the power receiving section; the receiver includes: a reed switch that is provided on the surface and is operated by proximity of a magnet; and a reed switch that is provided on the surface and that transmits the power. a power transmitting section; a control section that starts power transmission from the power transmitting section according to a switch output of the reed switch; a receiving section that receives a code signal obtained from the transmitter; and a code signal obtained from the receiving section that is set in advance. 1. A vehicle-mounted remote control device, comprising: a match determining means for determining whether the code signal matches a code signal.