JPH05112207A - Theft preventive device of car - Google Patents

Abstract

PURPOSE:To provide a theft preventive device for car, which senses that the car encounters a theft attempt while no alarm will be emitted merely with approach of a pedestrian or a car passing by. CONSTITUTION:A photo-sensor 4 to sense the height from the road surface contactlessly is furnished on the inner surface of a panel of car body, and sensing signals therefrom are fed to a time duration judging means 10, and if it judges that light is blocked for more than a certain set time, an alarm signal emitting means 7 is actuated. It is so arranged that a portable receiving means 8 gives alarm upon receiving radio signal from this alarm signal emitting means 7. Thereby the driver can receive alarm in a place remote from the car if there is anything which blocks the light flux in the neighborhood of any tire of the stolen car or if the car body sinks with any person having got thereon and if, at the same time, the sensing signal given by the photo-sensor 4 exceeds the set time. Therein the sensing accuracy is enhanced because the photo-sensor 4 senses road surface or the shadow of a person and because blocking the light is taken up only when a certain long period of time has elapsed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle anti-theft device, and more particularly, to a theft of a parked vehicle.
The present invention relates to an anti-theft device for a vehicle, which is capable of instructing the occurrence of theft by sounding an alarm sound or the like to a receiver carried by a driver who is away from the vehicle at that time.

[0002]

2. Description of the Related Art In order to prevent the theft of a parked automobile or the like, there has been a vehicle antitheft device using a non-contact type sensor. In some of these, a photoelectric tube is attached to the side surface of the vehicle body by an attraction force of a magnet or the like. When the driver leaves the vehicle, if the photocell is attached to the door of the driver's seat, for example, an alarm sound can be generated by utilizing the fact that the person approaching to open the door causes a change in brightness and darkness. ing. Therefore, the alarm sound informs the people around the vehicle that some people are behaving distrustfully,
It can also call attention to drivers nearby.

[0003]

However, when a person or vehicle passes through the door side to which the photoelectric tube is attached, or when another vehicle is parked in a parking lot or a general road, Each time, an alarm sound will be generated. In this case, a useless alarm sound is emitted even when it is not stolen, and the noise is scattered around. Therefore, there is a problem in the distance range of how close to the door the alarm sound is generated as the detection target of the photoelectric tube. However, when the phototube is directed to the side of the vehicle body, it is not easy to set the insensitive distance. By the way, the sensitive distance of the photocell is, for example, 30 cm.
Even if it is possible to restrict it, such as if there is a person who passes by in close proximity, regardless of whether it is stolen,
After all, there is a drawback that an alarm sound is generated. in addition,
Since the photocell attached near the door handle is easily noticeable, it is necessary to miniaturize it as much as possible, and it is necessary to pretend that it is not a phototube, and the device itself It has the drawback of being even more expensive. Furthermore, the above-mentioned alarm sound is only generated around the vehicle, and the driver who has entered the building or the driver at a long distance can no longer hear the sound and notice the occurrence of theft. Delayed,
There is a fatal flaw that you may not even notice.

The present invention has been made in view of the above problems, and an object thereof is not to react when a mere passerby or a passing vehicle approaches, and to generate an alarm sound only in the case of theft or the like. To be able to do so, without distracting the alarm sound around the vehicle, it is possible to call attention only to the driver who is far from the vehicle,
Considering that the detector is difficult to see from the outside of the vehicle, it is possible to make it easy for the user not to understand the existence of the detector, and to make it easier to set the sensitive limit distance of the detector, and to use an inexpensive device. It is an object of the present invention to provide an antitheft device for a vehicle that realizes the above. It should be noted that the present invention distinguishes between a state where the vehicle is stolen and a state where a person, a vehicle, etc. are simply passing and the vehicle is simply parked to the side by a new mounting mode of the detector. This is made possible by the adoption of the detection form. That is, the present invention is completed by paying attention to the specific behavior such as the situation around the vehicle body and the behavior of the stolen vehicle when it is stolen, and enabling the detection of the presence or absence of a similar movement. It is a thing.

[0005]

According to the present invention, as shown in FIG. 1 to FIG. 3, an optical sensor means 4 for outputting a detection signal when all or a part of a luminous flux emitted is interrupted in an automobile 1. Inner surface 3a of the vehicle body panel 3 near the tire 2
It can be attached to. There is a sensitive distance range setting means 9 for setting a sensitive limit distance at which the optical sensor means 4 outputs a detection signal, and the optical sensor means 4 detects whether the light flux is blocked or not. A time duration determination means 10 for determining whether or not the signal lasts for a set time Ts or more is installed. When the time duration determining means 10 determines that the set time Ts or more has elapsed, the alarm signal transmitting means 7 that outputs an alarm radio wave
And a portable receiving means 8 for receiving an electric wave from the alarm signal transmitting means and giving an alarm to a driver or the like. In the second aspect of the invention, as shown in FIG. 8, when the telephone 13 installed in the automobile and the time duration determination means 10 determine that the set time Ts or more has elapsed, the telephone 13 is subjected to a predetermined push dial. Actuator means 14
A portable receiving means 8A for receiving a calling signal transmitted from the telephone 13 through the telephone line 15 in response to the operation of the actuator means 14 and generating a ringing tone or a calling telephone number is provided.

[0006]

When the antitheft device is activated, the optical sensor means 4 provided on the inner surface 3a of the vehicle body panel 3 or the like emits light toward the road surface. If there is something that blocks the light beam within the sensitive limit distance of the optical sensor means 4, it is determined whether the light blocking time lasts for the set time Ts or more. If it is less than the set time Ts, it is ignored, but if the time Ts is exceeded, an electric wave is emitted from the alarm signal transmitting means 7 and an alarm is emitted from the portable receiving means 8 possessed by the driver, and from the car. Even if you are far away, you can know that something is wrong with the vehicle. In the second invention, the light-shielding time is the set time Ts.
If the number exceeds the limit, the telephone 13 installed in the vehicle is push-dialed by the actuator means 14, and the theft can be known from the portable receiving means 8A via the telephone line 15.

[0007]

According to the present invention, it is possible to detect that a driver has been stolen while away from a vehicle by means of a device and an optical sensor means that have a sensitive limit distance defined and can be confirmed in terms of time duration. can do. That is, when there is a person or a vehicle that is simply approaching the vehicle, the control operation of the anti-theft device does not change. Therefore, even if it is not stolen, unnecessary noise scattering that an alarm sound is emitted is avoided. On the other hand, the presence or absence of theft can be detected by a wireless signal only by the person who possesses the portable receiving means. Since the light sensor means is not due to light and dark, the influence of weather etc. is extremely small,
Moreover, the detection target is a close distance that can be grasped in advance, such as a road surface, so that the detection accuracy is high. Since the optical sensor means is attached to the shade of the vehicle body panel or the like, the antitheft device is not noticed, there is no need to take measures for camouflage, and the device can be easily simplified and inexpensive. be able to. In the second invention, since the telephone line is used, the driver can know the occurrence of theft, no matter how far away from the car. It is possible to confirm and quickly make an investigation request.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle antitheft device according to the present invention will be described below in detail with reference to the drawings. With reference to FIG. 2 showing the appearance of the automobile and FIG. 3 showing the cross section taken along the line AA, the photoelectric sensor 4 is attached to the inner surface of the vehicle body panel 3 in the vicinity of the tire 2 of the automobile 1. This is an optical sensor means that outputs a detection signal when all or part of the emitted luminous flux is blocked by a human figure or the like.
An example of the mounting part of the photoelectric sensor 4 will be specifically described below. An outward bulge 3A is often formed around the lower end of the fender panel 3 where the tire 2 of the automobile 1 is located. This bulge 3A is provided in order to prevent the splash of mud splashing up from the tire 2 and from the viewpoint of design, but in most cases, it becomes an eaves-like shape that protrudes from the outer surface of the tire 2 toward the vehicle body side, It covers the outer periphery of the upper half of the tire 2. A photoelectric sensor 4 forming an anti-theft device is attached to the inner surface 3a of the bulge 3A. The photoelectric sensor 4 has a box shape as shown in FIG.
The front surface 4a is, for example, 1 cm × 2 cm, the length of the body portion 4b is about 3 cm, a light emitting device and a light receiving device are built in, and the light emitting surface 4M and the light receiving surface 4N are arranged side by side on the front surface 4a. Sensor. In this photoelectric sensor 4, when the light flux emitted forward from the light emitting surface 4M is blocked, the reflected light is sensed by the light receiving surface 4N, but the photoelectric sensor 4 outputs a detection signal. Sensitive distance range setting means 9 is provided for setting the sensitive limit distance.

In this example, a sensitive distance range setting device is built in the body portion 4b of the photoelectric sensor 4, and the body portion 4b is provided.
A rotor 9A that is rotated to specify the sensitive limit distance is attached to the side surface of the rotor. The rotor 9A has an arrow-shaped groove on the surface, and the sensitive distance limit is set to, for example, 20 depending on the amount of rotation based on the scale provided around the rotor.
It is possible to change in the range of 80 cm to 80 cm. Therefore, as shown in FIG. 2, when the photoelectric sensor 4 is attached to the inner surface 3a where the vertical line passing through the center of the tire 2 and the bulge 3A intersect, the distance H from the photoelectric sensor 4 to the road surface 5 is At 70 cm,
Rotate the rotor 9A so that the sensitive limit distance is slightly shorter than 70 cm, for example, 69 cm. For example, when a person gets into a stolen vehicle, the vehicle body sinks by at least 1 cm, so that the distance of the photoelectric sensor 4 from the road surface 5 is shortened, and the light flux is blocked by the road surface 5. Output the detection signal. As a matter of course, if there is something that blocks the light at an arbitrary position within the sensitive limit distance from the front surface 4a of the photoelectric sensor 4, the light receiver detects the reflected light and detects that the light is blocked. Since the sensitive distance limit can be set arbitrarily, the mounting position of the photoelectric sensor 4 is not limited to the above-mentioned position, but generally,
It may be a place other than the bulge 3A described above as long as it is near the tire, and may be attached to a desired portion of the vehicle body as long as it can detect that a situation peculiar to theft has occurred. By the way, the photoelectric sensor 4
Will be installed on the vehicle body in advance, but it may be installed for all wheels, only the front wheels, only the rear wheels,
The attached wheel can be arbitrarily selected, such as only the right wheel, only the left wheel, or any one tire. It should be noted that the sensitive distance range setting means 9 for each photoelectric sensor 4 may be selected so that the sensitive limit distance becomes a distance suitable for detecting theft according to the mounting site. By the way, the luminous flux emitted from the photoelectric sensor 4 is 70c.
It exhibits a spread of about 10 cm to 15 cm at a distance of about m. However, even when the vehicle is parked next to another vehicle, the light flux is generally stopped by about 30 cm, so that the light flux is not blocked by the tires or panels of the adjacent vehicle.

As shown in FIG. 1, the anti-theft device includes a time duration determination means 10, an alarm signal transmission means 7, and a portable reception means 8 in addition to the above-mentioned optical sensor means 4 and sensitive distance range setting means 9. Prepare The time duration determination means 10 detects whether the light beam is blocked or unblocked, and outputs a signal from the optical sensor means 4 for a set time T.
It is determined whether or not it has been maintained for s or more, and this is included in the abnormality detection control device 6 described below. The abnormality detection control device 6 is, for example, a microcomputer, and has a CPU as a central processing unit and an R as a storage device.
OM and RAM are included. This is housed in one control box, a switch mechanism (not shown) for starting and stopping the operation of the anti-theft device, and a mechanism for making the receiver 8 sound with a certain timbre that the switch has activated. (Not shown) is included, and in order to operate the original control function, the interface 6A that takes in the detection signal from the photoelectric sensor 4 and the circuit for the time duration determination means 10 described above, and the time duration determination means 10 When it is determined that the set time Ts or more has elapsed, the circuit of the transmission instruction means 11 for instructing the transmission of the alarm signal is provided.

When the detection signal indicating the interruption is input from the photoelectric sensor 4, the time duration determination means 10 determines whether or not the detection signal lasts for a set time Ts, for example, one second or more. It For example, when a dog, cat, or the like passes through a tire, the passage does not take more than 1 second, and such simple passage is ignored. On the other hand, when theft is encountered, the following happens. When a person gets in a car and tries to escape,
As shown in FIG. 5, the weight of the person sinks from the height H in the state of the solid line, for example, h = 10 mm as indicated by the chain double-dashed line. As a result, the distance from the photoelectric sensor 4 to the road surface 5 becomes short, the road surface 5 exists within 69 cm of the set sensitive limit distance, and the light flux is blocked for one second or more. From this, it is possible to detect even a child riding on the hood or trunk. As described above, the time duration determining means 10 determines whether or not the signal from the photoelectric sensor 4 that has detected the interruption of the light flux is maintained for the set time Ts (= for example, 1 second described above) or more. Although it is sufficient, the photoelectric sensor 4 which detects that the light beam is no longer blocked in consideration of the following
It may be possible to determine whether or not the signal from is maintained for the set time Ts or more. This is suitable for detecting the case where the vehicle body behaves as if it was lifted, as opposed to the case where the vehicle body sinks as described above.
The sensitive limit distance at that time may be set to 71 cm, for example. As a result, the photoelectric sensor 4 is normally made to detect the light blocking state by the road surface 5 which is 70 cm away from the road surface 5,
The vehicle body is lifted and the road surface 5 is moved from the photoelectric sensor 4 to 71.
This is because it can be utilized that the light beam is not blocked when the distance is more than cm. This will be described with reference to FIG. When a car is stolen and moved,
When the road surface 5 has unevenness and changes from a solid line state to a two-dot chain line, the tire 2 floats in the air from the lower ground 5a for h. Further, when the tire 2 is raised from the step of the road and the sidewalk to the state of the two-dot chain line from the state of the one-dot chain line, the distance to the road surface 5 becomes longer than the initial height H. In any case, the light flux from the photoelectric sensor 4 is not blocked by the road surface 5. If this can be determined by the time duration determination means 10 to be equal to or longer than the set time Ts, it is possible to inform that the distrustful act is occurring in the vehicle. In this case, if the set time Ts is set as short as 0.2 seconds, the detection will be more reliable. Not only in such a case, but when it is desired to change and adjust the length of the light-shielding time, the set time Ts judged by the time continuation judging means 10 is set in a control box or the like having the abnormality detection control device 6 built therein. It is convenient to be able to change it by operation.

The above-mentioned sensitive distance range setting means 9 is shown in FIG.
As shown in FIG. 7, the sensitive limit distance is provided in advance on the body portion 4b of the photoelectric sensor 4, and instead, the limit value is stored in the ROM of the abnormality detection control device 6. May be. By the way, the distance from the photoelectric sensor 4 to the road surface 5 may change depending on the state of the vehicle when parked, that is, the position of the luggage left in the vehicle compartment, the size of the weight, and the like. In consideration of such a situation, instead of the sensitive distance range setting means 9 provided in the body portion 4b of the photoelectric sensor 4, the abnormality detection control device 6 is provided with a sensitive limit distance setting function, and when the vehicle gets off the vehicle. Then, it is preferable that the sensitive distance limit can be reset by operating a lever attached to the abnormality detection control device 6 each time. By the way, when the switch is turned on to activate the anti-theft device, 1 second to 2 seconds
Make sure to generate intermittent start-up confirmation sounds (pi, pi, pi) at short intervals within a second. As a result, the driver may leave the vehicle after confirming that the abnormality detection control device 6 operates normally. It should be noted that in the following operational description, a case will be described as an example in which the luminous flux is subsequently blocked within the set sensitive distance limit.

The above-mentioned transmission command unit 11 is a device that receives a signal from the time duration determination means 10 and commands the driving of the oscillator 7 described below, and commands the transmission of an alarm signal. The alarm signal transmission means 7 is a transmitter that receives a command signal from the transmission command means 11 and outputs a warning radio wave. This may be installed outside the box accommodating the abnormality detection control device 6 described above, but may be stored in one control box together with the abnormality detection control device 6. The portable receiving means 8 is a portable receiver that receives a radio wave from the transmitter 7 and gives an alarm to a driver or the like, and has a built-in rechargeable battery or the like, and is small so that the driver can easily carry it around. .. The alarm that informs theft is given in the form of an alarm sound or lighting of a lamp. The alarm sound is easy to distinguish if it is kept for about 5 seconds as a tone color (pee, pee, pee) different from the activation confirmation sound when the activation switch of the anti-theft device is turned on. .. By the way, the distance that the receiver 8 can receive from the transmitter 7 is limited. For example, it is 500 m horizontally when outdoors and at most 300 m for people indoors. Therefore, if the driver is too far from the car, the radio waves will no longer reach. For this reason, it is convenient to allow the driver carrying the receiver 8 to generate a caution sound indicating that reception is not possible when the driver is farther than the above distance. The caution sound is the same as or different from the activation confirmation sound described above, but a sound that can be sufficiently discriminated from the warning sound when the light blocking is detected is selected. In addition,
If it is determined that reception is not necessary, the warning sound can be turned off by turning off the switch provided in the receiver 8.

The vehicle antitheft device thus constructed can operate as follows to notify the driver of the occurrence of theft of the automobile 1. This will be described with reference to the flowchart of FIG. When the driver leaves the car after parking, the anti-theft device is turned on and activated (step 1 in the flowchart, hereinafter referred to as S1 and the like). Light emission from the photoelectric sensor 4 is also started at this point, but during the first 1 to 2 seconds, a start-up confirmation sound is emitted to inform that the anti-theft device can operate normally. After the intermittent sound has stopped, the photoelectric sensor 4 is in a standby state until it detects that the light beam is blocked. In addition, it is convenient if the following operation is required when the switch is turned on. If the switch is composed of, for example, five buttons for closing, 1, 2, 3 and releasing, the power can be turned on only when the closing button is pressed and then, for example, 312 as a personal identification number is pressed in that order. So that In this way, even if a foreign object touches the switch while the vehicle is traveling, the antitheft device will not be unnecessarily activated. On the other hand, if the release button, the 2 button, the 3 button, and the 1 button must be pressed in this order for the release operation, the intrusion of the glass or the like will occur by noticing that the anti-theft device is installed. It is possible for a person who has done so to not easily release the operation of the device. That is, since there are three types of number buttons, there are 27 combinations, and it is not possible to easily reach the personal identification number. Also, if it does not correspond to the personal identification number, if the buzzer sounds until the battery built in the control box runs out,
As long as there is a pedestrian traffic, it is possible to inform the people around you that a disbelief has boarded. Also, on the receiver 8 side,
You may make it produce such a sound.

When the anti-theft device is in a functioning state and the light beam is not blocked for more than 1 second even if a person passes by the tire or a dog or cat simply passes by, No signal is output from the time duration determination circuit 10 in the abnormality detection control device 6. On the other hand, when there is a person who tries to steal the tire or takes away the car itself, the light flux from the photoelectric sensor 4 is blocked within the set sensitive limit distance by the shadow of the person (S
2). In such a circumstance, the time when the person's shadow blocks the light flux is generally longer than 1 second, and the time duration determining means 10 determines that the preset time Ts has been maintained for 1 second or more. (S3). At this time, the command signal from the transmission command means 11 causes the alarm signal transmission means 7 to emit a radio wave indicating that there is an abnormality (S4). The radio waves ring the portable reception means 8 carried by the driver who is far from the car (S5), so that the driver is informed that an untrustworthy person is near the tires or the theft has occurred, and the driver goes to the car. You can rush. Not only when an unbelievable person is approaching the tire, but also when the person gets in to escape with the car, the weight of the person sinks the car body a little. This also causes the above-mentioned alarm operation, and can promptly report the theft. It should be noted that when the driver moves the vehicle himself or when it is not necessary to activate the antitheft device, the switch may be turned off.

By the way, an example of mounting the anti-theft device on a vehicle body will be described. Assuming that the photoelectric sensors 4 are arranged on the right front wheel and the right rear wheel, for example, a control box such as the abnormality detection control device 6 is placed on the rear tray, and the wiring from each photoelectric sensor 4 is connected. The switch as an anti-theft device may be arranged on the instrument panel or the like, and the wiring may be extended from the control box to the instrument panel. Of course, the present invention is not limited to this, and the control box may be housed in the console box of the passenger seat.
The photoelectric sensor 4 is mounted at an oblique position 4p as shown in FIG. 2 instead of being arranged right above the center of the tire 2 or on the outer surface of the lower edge of the sill in front of or behind the tire. It may be attached to the position 4q substantially horizontally. If it is installed diagonally, you can set a sensitive distance limit that is slightly shorter than the distance to the road surface 5.
It can be made to function in the same manner as when it is arranged immediately above. In the case of mounting at an angle like this, the following can also be done. In the state in which the tire has been steered to some extent, the gap generated at that time is used so that the luminous flux from the photoelectric sensor 4 is directed toward the road surface 5 without hitting the tire, while the tire is returned to the original state. The photoelectric sensor 4 is attached so that the light flux is in a position or direction that is sometimes blocked by a part of the tire. This way,
When the vehicle tries to escape, the tires of the vehicle parked at the rudder angle are always returned, so that the theft can be notified when such steering is performed. When it is attached to the lower edge of the sill described above, its light emitting direction should be set slightly downward from the horizontal direction and slightly outward.
In this way, the light flux is not blocked by the tire, and the influence of a car parked on the side is extremely small. On the other hand, since there is a light shield at the tire, or when the steering angle is given to the tire, the light beam is blocked by the tire, which can be detected. As described with reference to FIG. 6, in the case where the light is always shielded within the sensitive limit distance and the photoelectric sensor 4 behaves when the light blocking object is located outside the sensitive distance range, , You can do the following: When parking, set the steering angle so that the light flux is blocked by a part of the tire. When the tire is returned to its original position to escape, the light flux is not blocked by the tire, and the photoelectric sensor 4 detects the interruption of the light blocking. This also makes it possible to know theft. It is possible to select any of these various detection modes, but the mode may be changed for each tire. By doing so, it is possible to detect any behavior of the vehicle body caused by theft.

FIG. 8 is a block diagram showing the structure of a different anti-theft device. This allows a driver away from the car to use a telephone line to inform them of the occurrence of theft. The structure is such that the optical sensor unit 4, the sensitive distance range setting unit 9, the time duration determining unit 10, the mobile phone 13 brought into the vehicle or the automobile telephone installed in the vehicle, and the telephone 13 are mounted. It comprises an actuator means 14 and a portable receiving means 8A such as a pager for receiving a calling signal from the telephone 13 through the telephone line 15 and emitting a calling tone or displaying a calling telephone number. The abnormality detection control device 12 is the same as the device 6 described above, but is provided with drive command means 16 in place of the transmission command means 11 described above. When the drive command means 16 determines by the time duration determination means 10 that the light is shielded for more than the set time Ts such as 1 second, it receives a signal from it and commands the transmission of a drive signal for operating the actuator device 14 described later. To do. The actuator device 14 is a telephone 13
The button has the same push dial operation as a human push operation, and operates in the number and order required to call the pager 8A. For example, as a call command, among the buttons of the telephone 13, the power supply, K,
If it is necessary to press #, #, and two # are pressed after 5 seconds or more have passed after pressing K, the drive command means 16 outputs three actuators shown in FIG. A command to operate each actuator is output according to the operation sequence of 14A, 14B, and 14C and the time interval. Assuming that the telephone 13 is a mobile telephone as shown in FIG. 9, the actuator device 14 thereof will be described with reference to FIGS. 10 and 11. The actuator device 14 has a gate-shaped cross section composed of a top wall 14a and left and right side walls 14b, 14b so as to cover some of the buttons arranged on the telephone set 13, and a predetermined power source, K, and # buttons. The actuators 14A, 14B and 14C are arranged at the positions corresponding to.

Next, the detailed structure of each actuator will be described. A cylindrical space 17 is provided on the lower surface side of the upper surface wall 14a of the apparatus main body 14M, and a spring member 18 having an upper end fixed is attached to the center of the top of the cylindrical space 17. The lower end portion of the spring material 18 is a magnetic iron core material 1
9 is fixed to the bottom surface of the cavity formed inside 9, and the iron core material 1
No. 9 is suitable for being suspended in the raised position shown by the solid line in FIG. On the other hand, in the inner peripheral portion of the cylindrical space 17, a plastic annular member 20 and a solenoid 21 surrounding the iron core material 19 are incorporated, and further, a plastic lid member 22 is provided from below so as not to drop them. Is attached. When each solenoid 21 is connected to a power source and excited by a signal from the drive command means 16, the iron core material 19 is pushed down against the elastic force of the spring material 18, and the corresponding button of the telephone 13 is pressed. 13a, 13b, 13
It is designed to press c. When demagnetized,
The elastic force of the spring material 18 in the contracting direction causes the iron core material 19 to return to its original position, and the pressed button is also restored. By the way, the operation of each actuator is sequence-controlled by receiving the command signal from the drive command means 16 as described above, but the drive command means 16 only outputs a trigger signal for simply driving the actuator. 9, the sequencer for operating the actuators 14A, 14B, 14C in a predetermined order and at a time interval in response to the trigger signal is received in the top wall 14a of the apparatus body 14M as shown in FIG. 23 should be built in. The device body 14M is the telephone 1
After being covered by 3, it is fixed so as not to come off easily by using a fastening metal fitting or the like not shown.

In the antitheft device having such a structure,
When the time duration determining means 10 determines that the light is shielded for the set time Ts or more, the actuator device 14 operates and the telephone 13 is automatically push-dial. A call signal is issued from the telephone set 13 to the central office, and transmitted to the pager 8A via the wireless and wired telephone lines 15. The pager 8A that receives the radio wave emits a ringing tone or displays the telephone number of the telephone set 13 that originated the call.
Looking at the number, if it is from the telephone 13 of the parked car, it can be known that the car has an abnormality. By using the telephone line 15, it is possible to know when the driver is too far from the car. In the above example, the distance from the transmitter 7 to the receiver 8 is at most about 500 m, but if the telephone line 15 is used, it can be sensed even in a remote place, and from there, the parking lot can be detected. You can even call a friend near you to see the car. It goes without saying that even when the telephone 13 is a car telephone installed in a car, it can be operated in substantially the same manner.

As will be understood from the details described above using various examples, since the presence or absence of the interruption of the light flux of the photoelectric sensor is detected, a mere passerby or a passing vehicle approaches. In such a case, the photoelectric sensor does not respond and the alarm can be issued only in the case of theft. Further, when the vehicle is not stolen, the alarm sound is not unnecessarily scattered around the vehicle, and the driver away from the vehicle can be alerted only when the vehicle is stolen. In addition, even if there is snowfall or the road is flooded after parking, it is taught that you are still parked outdoors. Since the photoelectric sensor is mounted on an inconspicuous portion of the inner and outer surfaces of the vehicle body panel or the like, the detector cannot be easily recognized from the outside of the vehicle, and the existence of the detection device need not be easily understood. Therefore, there is almost no need to take measures for downsizing the device or camouflaging, such as when the detection device is exposed, and as described above, it is easy to set the sensitive range and reduce the cost of the device. Be done.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of a vehicle antitheft device according to the present invention.

FIG. 2 is an external view of an example of an automobile to which the present invention is applied.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view of an example of an optical sensor unit.

FIG. 5 is an explanatory view of the principle of the detection operation of the optical sensor means.

FIG. 6 is an explanatory view of the principle of different detection operations in the optical sensor means.

FIG. 7 is a flowchart illustrating an operation.

FIG. 8 is a configuration block diagram of a vehicle antitheft device according to the second invention.

FIG. 9 is an external view of a mobile phone and an explanatory view of a mounting state in which the actuator device is covered therewith.

10 is a cross-section taken along line BB in FIG. 9,
Explanatory drawing of push dial operation | movement in the actuator means with which the portable telephone was covered.

FIG. 11 is an enlarged sectional view of the actuator.

[Explanation of symbols]

1 ... Automobile, 2 ... Tire, 3 ... Vehicle panel (fender panel), 4 ... Optical sensor means (photoelectric sensor), 7 ...
Alarm signal transmitting means (transmitter), 8 ... Portable receiving means (receiver), 8A ... Portable receiving means (pager), 9 ...
Sensitive distance range setting means, 10 ... Time duration determination means, 13
... telephone, 14 ... actuator means (actuator device), Ts ... set time.

Claims (2)

[Claims] 1. An optical sensor means attached to an inner surface of a vehicle body panel in the vicinity of a tire of an automobile and outputting a detection signal when all or part of a luminous flux emitted is blocked, and the optical sensor means detects the detection signal. Whether or not the signal from the sensitive distance range setting means for setting the sensitive limit distance for outputting, and the light sensor means for detecting whether or not the light flux is blocked is maintained for a set time or longer. And a warning signal transmitting means for outputting a warning radio wave when the time duration judging means determines that the set time or more has elapsed, and a radio wave from the warning signal transmitting means. And a portable receiving means for giving an alarm to a driver or the like. 2. An optical sensor means, which is attached to an inner surface of a vehicle body panel near a tire of an automobile and outputs a detection signal when all or a part of the emitted luminous flux is blocked, and the optical sensor means detects the detection signal. Whether or not the signal from the sensitive distance range setting means for setting the sensitive limit distance for outputting, and the light sensor means for detecting whether or not the light flux is blocked is maintained for a set time or longer. A time duration determining means, a telephone installed in a car, and an actuator means for performing a predetermined push dial to the telephone when the time duration determining means determines that the set time or more has elapsed, Receives a ringing signal transmitted from the above-mentioned telephone via the telephone line in accordance with the operation of the actuator means, and makes a ringing tone or a call. Anti-theft device for a vehicle, characterized by comprising a portable receiving means for generating a telephone number.