JPH0582699U - Transmitter for remote control of vehicle load - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the number of required operation switches, improve operability, improve the flexibility of the external design, reduce the rigidity of the main body case, and prevent the structure from becoming complicated. [Configuration] First switch 14, second switch 15,
The safety switch 16 is provided on the main body case. C
The PU 20 transmits a radio signal S1 for instructing the engine to start when the first switch 14 and the safety switch 16 are simultaneously operated, through the high-frequency unit 21 and the antenna 13a, and when the second switch 15 and the safety switch 16 are simultaneously operated, A radio signal S2 for instructing the stop of the door lock mechanism is transmitted, and a radio signal S3 for instructing the unlocking of the door lock mechanism and an instruction for locking the door lock mechanism are issued when the first switch 14 and the second switch 15 are individually operated. The radio signal S4 is transmitted. Therefore, it suffices to provide three switches 14 to 16 for transmitting the four types of radio signals S1 to S4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a transmitter for remote control of a vehicle load used when controlling a vehicle load by remote control.

[0002]

[Prior Art]

 Conventionally, the start and stop of the engine of a car stopped in a remote place has been controlled by a radio signal from a remote control transmitter carried by a driver. It is also provided with an unlocking and locking function for the vehicle door lock mechanism.

Such a remote control transmitter normally uses a push button type operation switch in consideration of its operability. However, in actual use, the transmitter is often stored in the pocket of the wearer's (driver's) clothes, and it is highly likely that the transmitter will be operated accidentally against the intention of the wearer. In general, some kind of erroneous operation prevention means is provided. Therefore, the conventional remote control transmitter is configured as shown in FIG. 7 or FIG.

That is, in the example of FIG. 7, a start switch 2 for starting an automobile engine, a stop switch 3 for stopping an engine, a door lock mechanism for an automobile are provided on the front surface of a flat rectangular main body case 1 having a fixed antenna 1a. An unlock switch 4 for unlocking the door and a lock switch 5 for locking the door lock mechanism are provided, and a safety switch 6 is provided on the side surface of the main body case 1. These switches 2 to 6 are automatic. It is composed of a reset type push button switch.

Then, a transmission control circuit (not shown) provided in the main body case 1 transmits a radio signal in a mode for instructing the engine start when the safety switch 6 and the start switch 2 are simultaneously operated via the antenna 1a. When the safety switch 6 and the stop switch 3 are simultaneously operated, a radio signal of a mode for instructing the engine to stop is transmitted, and in each case the unlock switch 4 and the lock switch 5 are operated independently. , It is configured to transmit a radio signal in a mode instructing unlocking and locking of the door lock mechanism, respectively. As a result, a safety function is obtained to prevent accidental transmission of each radio signal that commands the start and stop of the engine.

In addition, in the example of FIG. 8, a retractable antenna 1b is provided in place of the fixed antenna 1a, and the safety switch 6 is replaced by a limit switch 7 which is turned on in the main body case 1 in accordance with the withdrawal of the antenna 1b. Is provided. The transmission control circuit provided in the main body case 1 is configured to transmit a radio signal according to the operation of each of the switches 2 to 5 only when the antenna 1b is pulled out and the limit switch 7 is turned on. Has been done.

[0007]

[Problems to be solved by the device]

 However, in the conventional configuration described above, in any of the configurations shown in FIGS. 7 and 8, the main body case 1 must be provided with the switches 2 to 5 in the number corresponding to the type (4 types) of the radio signal to be transmitted. Under the circumstances. However, since the main body case 1 is formed in a relatively small size in consideration of portability, the area of the operation portion of each switch 2 to 5 and the distance between each switch 2 to 5 are sufficiently secured. However, it has the drawback of being inferior in operability, and also has the problem that there are many restrictions on the external design. Moreover, since it is necessary to provide holes for the switches 2 to 5 in the main body case 1, the overall structure is complicated and the rigidity of the main body case 1 is reduced, and when a waterproof structure is provided, the structure is further complicated. There was also a problem that it was unavoidable to do.

The present invention has been made in view of the above circumstances, and an object thereof is to reduce the number of operation switches required, improve operability, and improve flexibility in external design. At the same time, another object of the present invention is to provide a transmitter for remote control of vehicle load, which can prevent the rigidity of the main body case from decreasing and the structure from becoming complicated.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a remote control transmitter for transmitting a plurality of types of radio signals for instructing an operation mode of a vehicle load to a receiver provided on the vehicle side. The main body case is provided with a plurality of push button type operation switches assigned to each of the two types of radio signals and one push button type auxiliary operation switch. Inside the main body case, the operation switch and the auxiliary operation are provided. A transmission control circuit that transmits one of the two types of radio signals assigned to the operation switch when both switches are operated and transmits the other radio signal when only the operation switch is operated. Is provided.

In this case, it is desirable that the transmission control circuit be configured to transmit a weak radio wave signal when only the operation switch is operated.

[0011]

[Action]

 The transmission control circuit is designed to transmit one of the two types of radio signals assigned to the operation switch when both the operation switch and the auxiliary operation switch are operated. When this is a signal for instructing a high operation mode, it is possible to effectively prevent malfunction of that operation mode. Further, the transmission control circuit transmits the other of the two types of radio signals when only the operation switch is operated. At this time, for example, when two operation switches are provided, a total of three switches including the auxiliary operation switch can output signals instructing a total of four types of operation modes.

[0012] When the weak radio signal is transmitted when only the operation switch is operated, the operation is performed in the state of approaching the receiver side (vehicle side), that is, the operation of the operation switch. Since it is effective only when the operating state of the vehicle load associated with the above can be easily confirmed, there is no risk of problems in actual use.

[0013]

【Example】

 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

FIG. 3 shows an external view of a portable transmitter 11, which is a remote control transmitter targeted by the present invention. In FIG. 3, a main body case 13 having an antenna 13a for transmitting a radio signal to an in-vehicle receiver (shown by reference numeral 12 in FIG. 2) which is a vehicle-side receiver has a flat rectangular shape. It is made of plastic and is equipped with a first switch 14 and a second switch 15 as operation switches on the front surface, and a safety switch as an auxiliary operation switch on the side surface. Chi 16 is provided. Each of the switches 14 to 16 is composed of an automatic reset type push button switch.

In this case, the first switch 14 operates as a radio signal S 1 for instructing the operation of the engine starter circuit (indicated by reference numeral 17 in FIG. 2) that is the vehicle load, that is, the engine start command. , The radio signal S3 for instructing the unlocking operation to the vehicle door lock mechanism (indicated by reference numeral 18 in FIG. 2), which is the load for the vehicle, is provided on the front surface of the main body case 13. , "Start / Unlock" is provided so as to correspond to the first switch 14.

The second switch 15 performs an operation of shutting off an ignition circuit (not shown) which is a vehicle load, that is, a radio signal S 2 for instructing a stop of the engine and a locking operation of the door lock mechanism 18. It is assigned to the radio signal S4 for instructing, and the characters "stop / lock" are provided on the front surface of the main body case 13 so as to correspond to the second switch 15.

FIG. 1 shows a schematic electrical configuration of the transmitter 11, which will be described below. That is, in the main body case 13, a battery 19, a CPU 20 as a transmission control circuit, and a high frequency unit 21 for transmitting the radio wave signals S1 to S4 via the antenna 13a are provided.

A negative terminal of the battery 19 is connected to the ground terminal, and a positive terminal of each of the first switch 14, the second switch 15, and the safety switch 16 has a pull-up resistance. 14a, 15a, 16a are separately connected. The other ends of the switches 14 to 16 are connected to the ground terminal.

Therefore, when the switches 14 to 16 are turned on, the ON signals Sa, Sb and Sc composed of low level signals are output from the points A, B and C in FIG. The ON signals Sa, Sb, and Sc are input to the CPU 20.

The CPU 20 and the high frequency unit 21 are configured to be supplied with power from the battery 19, and the CPU 20 passes through the high frequency unit 21 and the antenna 13a according to the input state of the ON signals Sa, Sb and Sc. The following transmission controls are performed. The high frequency unit 11 has a configuration capable of reducing the transmission output, and a signal line for transmission signals (radio wave signals S1, S2, S3, S4) is provided between the high frequency unit 11 and the CPU 20. In addition, a signal line for switching the transmission output of the high frequency unit 21 is connected (the transmission output may be reduced by directly applying the ON signal Sc to the high frequency unit 21).

When the ON signals Sa and Sc are simultaneously input, in other words, when the first switch 14 and the safety switch 16 are simultaneously ON-operated, the engine starter circuit 17 (see FIG. 2) is turned on. A radio signal S1 of a relatively high output level (when configured as a so-called specific low power type, for example, a level at which radio waves reach a line of sight of about 100 meters) that commands an operation (engine start) is transmitted.

When the ON signals Sb and Sc are simultaneously input, in other words, when the second switch 15 and the safety switch 16 are simultaneously turned ON, the operation of shutting off the ignition circuit (stopping the engine) ) Is transmitted, a radio signal S2 having a relatively high output is transmitted.

When only the ON signal Sa is input, in other words, when only the first switch 14 is turned ON, the door lock mechanism 18 (see FIG. 2) is instructed to perform the unlocking operation. A radio signal S3 of a weak level (a level at which radio waves reach several meters) is transmitted.

When only the ON signal Sb is input, in other words, when only the second switch 15 is turned ON, a relatively weak electric wave signal S4 for instructing the door lock mechanism 18 to perform the locking operation. To send.

FIG. 2 shows a schematic electrical configuration of the receiver 12, which will be described below. That is, the high frequency unit 22 is adapted to receive the radio wave signals S1 to S4 via the antenna 22a, and gives the received signal to the CPU 23. The high-frequency unit 22, the CPU 23, and the power supply for each circuit element described below are supplied from the on-vehicle battery 24 via the constant voltage circuit 25.

The ACC relay 26 forms the ACC circuit of the vehicle in the operating state, the IG relay 27 forms the ignition circuit of the vehicle in the operating state, and the starter relay 28 operates in the operating state. The relays 26, 27, and 28 are configured to be operated by the CPU 23 via the output interface circuit 29.

The door lock signal output circuit 30 outputs a door lock signal for switching the door lock mechanism 18 to the locked state in the operating state, and the door unlock signal output circuit 31 releases the door lock mechanism 18 in the operating state. It outputs a door unlock signal for switching to the locked state, and these signal output circuits 30 and 31 are also operated by the CPU 23 via the output interface circuit 29.

The engine start detection circuit 32 provided on the automobile side detects whether or not the engine is normally started based on the engine speed, the state of the ignition device, and the like, and starts when the normal start state is detected. The signal Se is generated, and the start signal Se is supplied to the CPU 23 through the input interface circuit 33.

The voltage monitoring circuit 34 provided on the automobile side monitors the output voltage of the vehicle-mounted battery 24, and the monitored voltage is lower than a predetermined lower limit voltage (voltage that can normally operate the starter motor of the automobile engine). The voltage shortage signal Sf is generated when the voltage becomes low, and the voltage shortage signal Sf is given to the CPU 23 through the input interface circuit 33.

In addition to the above, each output signal from the parking brake switch 35, the shift position switch 36, the bonnet switch 37, and the door lock detection switch 38 is input to the CPU 23 through the input interface circuit 33.

In this case, the parking brake switch 35 generates the brake operation signal Sg when the parking brake of the vehicle is in the operating position, and the shift position switch 36 determines that the shift position of the transmission is in the parking position (however, the In the case of a tomatic transmission, the parking signal Sh is generated when in the neutral position (in the case of a manual transmission), and the bonnet switch 37 generates the bonnet closing signal S i when the hood of the vehicle is closed, The lock detection switch 38 generates a door lock signal Sj when the door lock mechanism 18 of the automobile is all locked.

By the way, the CPU 23 is configured to perform the following control depending on the input state of the radio wave signals S1 to S4 through the high frequency unit 22.

When the radio signal S1 is input, in other words, when the first switch 14 and the safety switch 16 are simultaneously turned on on the transmitter 11 side, the start signal Se and the voltage shortage signal Sf are transmitted. No input, and all brake operation signals Sg, parking signal Sh, bonnet closing signal Si, and door lock signal Sj are input (that is, the engine has not been started yet, the output of the on-vehicle battery 24) The voltage is sufficient to start the engine, the parking brake is activated, the transmission is in the parking position, the vehicle hood is closed, and the door lock mechanism 18 is in place. The ACC relay 26, the IG relay 27, the starter The ray 28 is activated, which starts the engine. When a start signal Se indicating that the engine has started is input after executing such control, only the starter relay 28 is stopped and the drive of the starter circuit 17 is stopped.

When the radio signal S2 is input, in other words, when the second switch 15 and the safety switch 16 are simultaneously turned on on the transmitter 11 side, the start signal Se is input. On condition that (the engine has been started), the ACC relay 26 and the IG relay 27 are deactivated, whereby the ignition circuit is cut off and the engine is stopped.

When the radio signal S3 is input, in other words, when only the first switch 14 is turned on at the transmitter 11 side, the door unlock signal output circuit 31 is operated to lock the door. The mechanism 18 is switched to the unlocked state.

When the radio signal S4 is input, in other words, when only the second switch 15 is turned on on the transmitter 11 side, the door lock signal output circuit 30 is operated to lock the door. The mechanism 18 is switched to the locked state.

In short, according to the above configuration, the operation of transmitting the radio signals S1 and S2 reaching a long distance, that is, the operation of instructing the start or stop of the engine by remote control is performed by the safety switch 16 and the first switch 14. Since the first operation is performed only when the safety switch 16 and the second switch 15 are simultaneously operated, it is possible to prevent the engine from being started or stopped by mistake. It can be effectively prevented.

The radio signals S3 and S4 corresponding to the operation command of the door lock mechanism 18 are transmitted by the independent operation of the first switch 14 or the second switch 15. The radio signals S3 and S4 are set to be comparatively weak, and the commands based on the radio signals S3 and S4 are valid only near the automobile (within several meters), that is, when the operator can directly confirm the door lock state. Since it is configured as follows, there is no particular problem.

Further, in the above-described embodiment, since the total of three switches 14 to 16 can transmit the total of four types of radio signals S1 to S4, the number of required switches can be reduced as compared with the conventional configuration. it can. That is, according to the present embodiment, it is sufficient to provide only two switches 14 and 15 on the front surface of the main body case 13 (four switches are required in the conventional configuration), and as a result, the operation of each switch 14, 15 is performed. The area of the part and the distance between the switches 14 and 15 can be sufficiently secured to improve the operability thereof, and at the same time, the restrictions on the external design can be reduced. Moreover, since the number of holes required to provide the switches 14 to 16 in the main body case 13 is reduced compared to the conventional configuration, the overall structure can be simplified and the rigidity of the main body case 13 can be increased. Therefore, even when a waterproof structure is provided, it is possible to prevent the waterproof structure from becoming complicated.

When the engine is started or stopped by a command from the transmitter 11, an answerback signal indicating that is sent back from the automobile side to the transmitter 11 side, and The transmitter 11 may display the content indicated by the answerback signal. In the following, the second embodiment of the present invention adopting such a configuration is different from the first embodiment. Only the part will be described with reference to FIGS.

In FIG. 6, a main body case 13 of a portable transmitter / receiver 11 ′ serving as a remote control transmitter, for example, a red light emitting diode 39 for indicating that the engine has started, and the engine has stopped. A green light-emitting diode 40, for example, for displaying this is provided.

In FIG. 4 showing an outline of an electrical configuration of the portable transceiver 11 ′, the light emitting diodes 39 and 40 are provided at both ends of the vehicle-mounted battery 19 respectively with a resistor 39 a, a switching circuit 39 b and a resistor 40 a, and a switching circuit. It is connected through the circuit 40b. In addition to the function of transmitting the radio signals S1 to S4 via the antenna 13a, the high frequency unit 21 'also has an answerback signal Sy1 from an in-vehicle transceiver 12' (corresponding to a receiver in the present invention) described later. , Sy2 is received via the antenna 13a, and is configured to be selectively switched between a transmission state and a reception state by a command from the CPU 20.

The answerback signal Sy1 indicates that the engine has started, the answerback signal Sy2 indicates that the engine has stopped, and the CPU 20 emits light during the reception of the answerback signal Sy1. The diode 39 is turned on via the switching circuit 39b, and the light emitting diode 40 is turned on via the switching circuit 40b during the reception period of the answerback signal Sy2. The high frequency unit 21 'is configured to reduce the transmission output while the ON signal Sc is output.

In FIG. 5 showing an outline of the electrical configuration of the on-vehicle transceiver 12 ', the high frequency unit 22' has a function of receiving the radio signals S1 to S4 via the antenna 22a, and the answerback signal Sy1, It has a function of transmitting Sy2 via the antenna 22a, and is configured to be selectively switched between a transmission state and a reception state by a command from the CPU 23.

The CPU 23 receives the radio signal S 1 from the portable transceiver 11 ′, starts the engine through the starter circuit 17, and then the engine start detection circuit 32 outputs a start signal Se indicating that the engine has started. When it is input, it controls the driving of the starter circuit 17 and at the same time controls the transmission of the answerback signal Sy1, and also stops the engine based on the radio signal S2 from the portable transceiver 11 '. After the control is performed, when the input of the start signal Se is stopped, the control for transmitting the answerback signal Sy2 is performed.

In this case, for example, by adopting at least one of the following means (a) to (c), the reception state of the answerback signals Sy1 and Sy2 on the side of the portable transceiver 11 ′ can be changed to the vehicle-mounted state. It is configured to be in a better condition than the reception condition of the radio signals S1 and S2 on the transceiver 12 'side.

(A) The signal level of the answerback signals Sy1 and Sy2 transmitted from the vehicle-mounted transceiver 12 'side is made higher than the signal level of the radio wave signals S1 and S2 transmitted from the portable transceiver 11' side.

(B) The antenna gain at the time of transmission on the in-vehicle transceiver 12 'side is made higher than the antenna gain at the time of transmission on the portable transceiver 11' side. However, in this case, it is necessary to add a transmission-dedicated antenna 22b having a good antenna gain, as shown by a chain double-dashed line in FIG.

(C) The receiving sensitivity of the in-vehicle transceiver 12 'is set lower than the receiving sensitivity of the portable transceiver 11'.

According to the present embodiment configured as described above, the same effects as those of the first embodiment can be obtained, and the radio signals S1 and S2 transmitted from the portable transceiver 11 'can be used. The fact that the engine has been started or stopped can be known on the side of the portable transceiver 11 ', which is very convenient in practice.

In this case, in this embodiment, the reception state of the answerback signals Sy1 and Sy2 on the side of the portable transceiver 11 ′ is better than the reception state of the radio signals S1 and S2 on the side of the vehicle-mounted transceiver 12 ′. With this configuration, after the radio signal S1 or S2 is transmitted from the portable transmitter / receiver 11 ', the direction of the portable transmitter / receiver 11' is changed, or another portable transmitter / receiver 11 'is placed next to another vehicle. Even in the case where the reception / transmission of the answerback signals Sy1 and Sy2 at the portable transmitter / receiver 11 'is deteriorated, such as when the vehicle is stopped, the answerback signals Sy1 and Sy2 can be reliably received. As a result, there is no possibility of causing a practical problem that the answerback function becomes unstable as described above.

Although the answerback signals S y1 and Sy2 corresponding to the radio signals S1 and S2 are fed back in this embodiment, the answerback signals are fed back to the other radio signals S3 and S4. It is also good as

[0053]

[Effect of the device]

 As is clear from the above description, according to the transmitter for remote control of a vehicle load according to claim 1, a plurality of pushers, one for each of two types of transmitted radio signals, are assigned to the main body case. A button type operation switch and one push button type auxiliary operation switch are provided, and two types of radio signals assigned to the operation switch with the operation switch and the auxiliary operation switch both operated in this main body case. The transmission control circuit that transmits one of the two and transmits the other radio wave signal when only the operation switch is operated is provided, so the number of required operation switches can be reduced and operability is improved. And the flexibility of the external design can be improved, and practical effects such as reduction of rigidity of the main body case and complexity of the structure can be achieved. It is.

According to the remote control transmitter for vehicle load of the second aspect, the transmission control circuit is configured to transmit a weak radio wave signal when only the operation switch is operated. Therefore, it is possible to directly confirm the control contents by the operation, and there is no possibility of causing any trouble in practical use.

[Brief description of drawings]

FIG. 1 is a schematic circuit configuration diagram on a transmitter side showing a first embodiment of the present invention.

FIG. 2 is a schematic circuit configuration diagram on the receiver side.

FIG. 3 is a front view showing the overall appearance.

FIG. 4 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 5 is a view corresponding to FIG.

FIG. 6 is a view corresponding to FIG.

FIG. 7 is a diagram corresponding to FIG. 3 showing a first conventional example.

FIG. 8 is a view corresponding to FIG. 3 showing a second conventional example.

[Explanation of symbols]

In the drawing, 11 is a portable transmitter (transmitter for remote control), 1
2 is an in-vehicle receiver, 13 is a main body case, 13a is an antenna, 14 is a first switch (operation switch), 15 is a second switch (operation switch), 16 is a safety switch (auxiliary operation switch), and 17 is a starter. Circuit (vehicle load), 18 is a door lock mechanism (vehicle load), 20
Is a CPU (transmission control circuit), 21 and 22 are high frequency units, 11 'is a portable transceiver (remote control transmitter), 1
2'indicates an on-vehicle transceiver (receiver).

Claims (2)

[Scope of utility model registration request] 1. A remote control transmitter for transmitting a plurality of types of radio signals for instructing an operation mode of a load for a vehicle to a receiver provided on the side of the vehicle. A main body case provided with a plurality of push button type operation switches assigned to each one and one push button type auxiliary operation switch, and both the operation switch and the auxiliary operation switch provided in the main body case A transmission control circuit that transmits one of the two types of radio signals assigned to the operation switch in an operated state and transmits the other radio signal in a state in which only the operation switch is operated. A transmitter for remote control of vehicle loads, characterized by: 2. The remote control of the vehicle load according to claim 1, wherein the transmission control circuit is configured to transmit a weak radio wave signal when only the operation switch is operated. Transmitter.