JP2001018752A - Operator checking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operator checking device which can assure an appropriate actuating distance while saving power. SOLUTION: This device is provided with a transmitter 1 carried by the operator of a mobile element for transmitting weak electric waves intermittently at predetermined time intervals, a receiver 2 mounted in the mobile element for receiving the electric waves, a re-triggerable timer 3 triggered by the reception of the electric wave to measure a time longer than the predetermined time interval, and a movement disabling means 4 for disabling movement of the mobile element when the timer has finished with measurement of the time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for confirming whether or not a driver is on a moving body, and more particularly to a device for confirming a driver who can save power and secure an appropriate working distance. .

[0002]

2. Description of the Related Art In a mobile object operated by a human, for example, a ship or a car, there is a case where the operator does not want to move the mobile object due to an undesired situation. On ships, especially motorboats,
It is inconvenient for the motorboat to go far unattended when the operator falls into the water while sailing. Also, in a car, a pirate by robbery or theft may drive and flee, which is inconvenient for a legitimate pilot. Therefore, it is desirable to have a device for confirming whether a valid operator is on the moving body. However, it is not preferable to determine that the driver is absent just by moving the operator a little away from the moving object. An apparatus that can do this is desired.

[0003]

There is known a motor boat in which an operator carries a remote control type stop switch and stops the motor boat. However, it is not sufficient because the operator who has fallen cannot operate the switch.

In a car, a weak radio wave is constantly transmitted from a transmitter carried by an operator, and the car is equipped with a receiver for receiving the radio wave. When the radio wave is no longer received, the engine is stopped. Or those that do not start are known. However, there is a disadvantage that the battery of the transmitter is consumed in a short time of about one day because radio waves are always transmitted even if it is weak. In this case, operation cannot be performed unless the battery is replaced or charged every day. Also, under special circumstances where robbers and thieves steal cars and escape, if the engine stops immediately in the vicinity of the legitimate pilot, the pilot is at risk of retaliation etc. , It is desirable that the engine stop after a certain distance is opened,
It is difficult to ensure a large range of radio waves due to regulations under radio regulations.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide an operator identification device capable of securing an appropriate working distance while saving power.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a transmitter which is carried by an operator of a moving body and emits weak radio waves intermittently at predetermined time intervals. A receiver that is mounted and receives the radio wave, a retriggerable timer that is triggered by the reception of the radio wave and measures a time longer than the predetermined time, and a mobile device that stops the time when the time measurement by the timer ends. And means for disabling movement.

The disabling means may allow the moving body to continue operating the engine during the time measurement, and may forcibly stop the engine after the time measurement is completed.

The disabling means permits the moving body to start the engine during the time measurement, allows the engine to start only once after the time measurement is completed, and then forcibly stops the engine. Good.

The disabling means forcibly sets the running engine to idle after the time measurement is completed,
And a brake may be operated.

[0010] The predetermined time may be set in accordance with a movement allowable time in which the moving body is allowed to move.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

The type of the operator confirmation device according to the present invention differs depending on the type of the moving object and the purpose of the operator confirmation. Therefore, first, a principle configuration will be described as a first embodiment.

As shown in FIG. 1, the operator confirmation device is carried by the operator of the mobile unit, and transmits a weak radio wave intermittently at predetermined time intervals. The transmitter 1 is mounted on the mobile unit. A receiver 2 for receiving the radio wave, a retriggerable timer 3 for measuring a time longer than the predetermined time triggered by the reception of the radio wave, and the mobile unit when the time measurement by the timer 3 is completed. And immobilization means 4 for immobilizing.

The electrical operation of the operator confirmation device will be described.

As shown in FIG. 2A, the transmitter 1
Transmits a radio wave of a predetermined frequency for a short time,
The operation of pausing for a long time is repeated. The time axis τ1 of this intermittent transmission is shown on the time axis in the figure. Most of the time interval τ1 is occupied by pauses, and the transmitting time width is indicated by a solid line with no width because it is minute compared to the time interval τ1. The receiver 2 always receives radio waves of the same frequency as the transmitter 1.

A radio wave having substantially the same waveform as that of the transmitter is received by the receiver 2 located within the range of the radio wave from the transmitter 1.
The timer 3 is started with the rising of the received waveform as a trigger, and generates a long-time pulse by a time constant circuit or a digital counting circuit (not shown). The time width of this pulse is τ2, which is slightly larger than the time interval τ1.
It is. When the timer 3 is triggered in the middle of the pulse, it is restarted and the pulse is extended from that point to the time width τ2, that is, a so-called retriggerable one. Therefore, while the radio wave transmitted from the transmitter 1 continues to be received by the receiver 2, the timer 3 continues to extend the pulse, and its output is the level signal (o) as shown in FIG.
n). This level signal allows the mobile to move, so that the mobile can continue to move.

Next, when the transmitter 1 is separated from the receiver 2, as shown in FIG. 3 (a), the transmitter 1 transmits radio waves of a predetermined frequency in the same manner as in FIG. τ1
To make intermittent calls. When the radio wave stops reaching, the receiver 2 has no waveform, but as shown in FIG. 3B, the timer 3 ends the extension of the pulse when the time τ2 has elapsed from the last trigger. Thereafter, the level signal that allows the moving body to move disappears (off), so that the moving body cannot continue moving.

The operation of disabling the moving object by the above-described operator confirmation device will be described.

As shown in FIG. 4 (a), a reception area 4 of a circle having a radius equal to the radio wave arrival distance around the moving body A is shown.
Assume 1. When the operator B is on the moving body A, the movement of the moving body is allowed because the transmitter 1 is naturally in the reception area 41. As shown in FIG. 4B, even if the pilot B descends from the mobile unit A, if the transmitter 1 does not go out of the reception area 41, the mobile unit is allowed to move. As shown in FIG. 4C, when the pilot B moves away from the moving body A and the transmitter 1 goes out of the reception area 41, the moving body becomes immovable.

However, as can be seen from FIG. 3B, the moving body can continue to move until the time τ2 has elapsed since the last trigger. Therefore, even if the transmitter 1 goes out of the reception area, the moving body can continue moving while the timer 3 measures the last time. Therefore, the time interval τ1 and the time width τ2 may be set in accordance with a movement allowable time during which the moving body is allowed to move out of the reception area. Since the permissible movement time can be converted into a moving distance based on the speed of the moving body, it is necessary to make the moving body immovable in an area including the converted moving distance outside the reception area 41 having the radius of the radio wave arrival distance. Can be envisioned.

Since the operator confirmation device according to the present invention transmits weak radio waves for a very short time, the power consumption of the transmitter 1 can be suppressed. Therefore, miniaturization, such as using a button battery as a power source, is possible, and the battery is easy to carry, and the battery can be used for a long time. Further, since the time interval τ1 and the time width τ2 are set in accordance with the allowable movement time, an appropriate working distance according to the application can be secured.

Hereinafter, specific embodiments will be described.

The second embodiment is a ship operator identification device, which has an object of keeping a ship from moving away from an operator who has fallen into water. In this case, it is preferable that the radio wave reach distance between the transmitter and the receiver is 50 m or less. This is because, assuming that a person can swim at a distance of about 50 m, it is necessary to stop the ship within that distance. The output signal of the timer 3 is input to the engine controller, and when this signal is turned off, it is set so that the running engine is forcibly stopped.

For example, it is assumed that the radio wave reach distance is 50 m, the intermittent transmission time interval τ 1 is 5 sec, and the time measurement time width τ 2 of the timer 3 is 6 sec. As shown in FIG.
The transmitter 1 performs intermittent transmission in 5 seconds. Ship speed is 20km
/ H, 5.5 m / se when converted to second speed
c. When the pilot falls off the ship, the pilot
The distance is 27.5 m after c and 55 m after 10 sec. Therefore, as shown in FIG. 5B, the transmitted radio wave up to the second time after the fall is received by the receiver 2, but the third transmitted radio wave is not received. Therefore, after a fall, the engine of the ship stops at a point of a maximum distance of 60 m after a maximum of 11 seconds. This allows the fallen pilot to swim and return to the ship. By shortening the radio wave arrival distance or shortening the time interval τ1 and the time width τ2, the maximum distance that the ship moves can be shortened.

The ship operator identification device according to the present invention is effective even when the operator is not in a situation where the operator can operate switches and the like because the ship stops even if the operator who falls down does not perform any special operation. Higher reliability than conventional remote control type stop switch.

The third embodiment is a vehicle operator identification device, which has the purpose of allowing a driver to escape a burglar to a safe distance in the event of a burglary. The safety distance is preferably 300 m or more. However, due to regulations under the Radio Law, the radio wave reach distance between the transmitter and the receiver cannot be set to 300 m or more. Therefore, the moving distance is determined by the time measurement time width τ2 of the timer 3. The output signal of the timer 3 is input to the engine controller and the brake controller, and when this signal is turned off, the driving engine is forcibly set to idling, and the brake is operated to stop the vehicle. I do. Not stopping the engine
This is to make the brake effective.

For example, it is assumed that the radio wave reach distance is 300 m, the intermittent transmission time interval τ 1 is 5 sec, and the time measurement time width τ 2 of the timer 3 is 6 sec. As shown in FIG. 6A, the transmitter 1 performs intermittent transmission in 5 seconds. Vehicle speed 40
km / h, 11.1 m / sec
/ Sec. When the pilot is removed from the car and the robbers begin to flee, the pilot will 55.5 after 5 seconds.
m, 30 seconds later, it will be 333 m away. Therefore, as shown in FIG. 6B, the transmitted radio waves up to the sixth time after the start of the escape is received by the receiver 2, but the seventh transmitted radio wave is not received. Therefore, after the robber escapes the radio wave reach distance of 300 m, the engine drops to idle at a predetermined time, the brakes are activated, and the car cannot be driven any more. This saves the car from being stolen and, before the robbers notice it,
The pilot has sufficient distance and time to protect himself.

According to the radio law, the radio wave reach distance is 30
It is stated that radio waves may be transmitted even if the radio wave suspension time is included even at 0 m or more. Specifically, "Specific Low Power Radio Station Telemeter and Telecontrol Radio Equipment Standards, RCR STD-16A" (Association of Radio Industries and Businesses) states that a radio suspension time of 3 seconds is required.
When the intermittent transmission is performed as in the present invention, since the radio wave suspension time is included, even if the radio wave reach distance is set to 300 m or more, it does not violate the radio law.

The fourth embodiment is a vehicle operator identification device, which has the purpose of making it impossible to drive a vehicle in case of theft damage. In the case of theft, the pilot is safer than in the case of robbery because the pilot is not in the car. However, when the pilot is near the car, the same security as in the case of robbery is required. Therefore, the output signal of the timer 3 is input to the engine controller and the brake controller, and if this signal is on, the engine can be started.
After the engine is started, the operation is the same as that of the third embodiment. If the output signal of the timer 3 is off, the engine is allowed to be started only once, and the engine is forcibly stopped immediately after the engine is started.

During the time measurement by the timer 3, that is, when the driver is near the car, the engine start is allowed. When a thief drives a car and escapes, the radio reach 30
After escaping from 0 m, the engine drops to idling at a predetermined time, the brakes are activated, and the car cannot be driven any more. Also, when the timer 3 does not measure the time, that is, when the pilot is far from the car, when the thief performs the engine start operation, the engine starts once but stops immediately, The car can no longer be driven.

In this embodiment and the third embodiment, if the car suddenly stops while the robbery or thief escapes, there is a possibility that the vehicle may be erroneously driven due to an unexpected situation. Therefore, when the output signal of the timer 3 is turned off, the warning may be once issued by voice or the like, and then the vehicle may be stopped.

The fifth embodiment is a device for confirming a driver of an automobile, and has an object of energy saving driving by idling stop. In this case, the radio wave reach distance between the transmitter and the receiver is 1
It is good to be about 0 m. When the output signal of the timer 3 is turned off during idling, it is known that the driver has left the vehicle while idling. Therefore,
When the output signal of the timer 3 is turned off during idling, the engine is forcibly stopped. The speed at which the pilot walks is 2k
m / h, 0.5 m / s when converted to second speed
ec. Accordingly, idling stops when the driver is more than 10 meters away from the vehicle. Such a configuration is effective for energy saving in a case where the driver frequently leaves the vehicle due to collection and delivery of luggage and the like.

The sixth embodiment is not aimed at confirming the operator of a moving body, but is applicable to the present invention, and is aimed at monitoring a person. Carry the transmitter with the person to be monitored and place the receiver in the center of the area where the person is allowed to move. An alarm device or the like is connected to the timer 3. Thus, an alarm can be issued when a person goes out of the area. For example, a receiver is installed in a nursing home or private home, and a transmitter is carried by an elderly person to be monitored. When the old man goes out of the area due to wandering or the like, a warning is issued, so that the search can be started immediately. In this case, it is not possible to specify the position of the elderly person, but a simple and inexpensive system can be provided as compared with a system that can specify the position is expensive and complicated.

The seventh embodiment is a ship operator identification device, and has the purpose of keeping the ship from moving away from the operator who fell into the water, as in the second embodiment. However,
Here, the output signal of the timer 3 is input to the steering device, and when this signal becomes off, the steering is forcibly turned. As a result, when the ship goes out of the reception area, the steering starts, and when the ship returns to the reception area, the steering ends, so regardless of the direction of the ship at the time of the fall, close to the pilot who fell down You can return the ship.

[0035]

The present invention exhibits the following excellent effects.

(1) Since a weak radio wave is transmitted only for a very short time, the power consumption of the transmitter can be suppressed.

(2) Since the transmission time interval is set in accordance with the movement allowable time, an appropriate working distance according to the application can be secured.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a pilot confirmation device according to a first embodiment of the present invention.

FIG. 2 is an operation waveform diagram of the operator confirmation device of FIG. 1;

FIG. 3 is an operation waveform diagram of the operator confirmation device of FIG. 1;

FIG. 4 is a diagram showing a positional relationship between a moving object equipped with the operator confirmation device of the present invention and an operator.

FIG. 5 is an operation waveform diagram of the operator confirmation device in the second embodiment.

FIG. 6 is an operation waveform diagram of the operator confirmation device in the third embodiment.

[Explanation of symbols]

 1 transmitter 2 receiver 3 timer 4 disabling means

Continued on the front page F term (reference) 2E250 AA21 BB08 BB36 FF23 FF36 HH01 JJ00 KK03 LL00 SS11 TT03

Claims (5)

[Claims] A transmitter which carries a weak radio wave intermittently at predetermined time intervals and which is carried by an operator of a moving body; a receiver which is mounted on the moving body and receives the radio wave; A retriggerable timer triggered by reception and measuring a time longer than the predetermined time, and a disabling means for disabling the moving body when time measurement by the timer is completed are provided. The operator confirmation device. 2. The system according to claim 1, wherein said disabling means permits the moving body to continue operating the engine during the time measurement, and forcibly stops the engine after the time measurement is completed. Pilot confirmation device. 3. The disabling means allows the moving body to start the engine during the time measurement, allows the engine to start only once after the time measurement is completed, and then forcibly stops the engine. The operator identification device according to claim 1, wherein: 4. The driver confirmation device according to claim 1, wherein the disabling means forcibly sets the running engine to idle and activates a brake after the time measurement is completed. 5. The operator confirmation device according to claim 1, wherein the predetermined time is set in accordance with a movement allowable time in which the moving body is allowed to move.