JP3902043B2 - Theft detection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a theft detection cable for connecting a theft detection object such as a motorcycle or a bag to a structure. Using , Theft detection device that detects abnormalities when this theft detection cable is forcibly disconnected or dropped and reports to the specified reporting center In place Related.
[0002]
2. Description of the Related Art Conventionally, a wire lock type locking device in which a lock is disposed at an end of a wire cable is known. However, such a locking device cannot detect the cutting of the wire when the wire is cut using a tool such as a wire cutter.
[0003]
Therefore, various devices have been filed as theft detection devices for solving the above-described problems. As an example, a theft detection device disclosed in Japanese Patent Application Laid-Open No. 60-226979 is known. In this theft detection device, a conductor is incorporated in a wire cable and energized, and when the wire cable is cut, a disconnection state of the conductor is detected and a notification operation is performed.
[0004]
As another example, a theft detection device disclosed in Japanese Patent Laid-Open No. 58-120965 is also known. This theft detection device has a wire cable incorporating a pair of conductors in an energized state, and performs a notification operation by detecting a short circuit of the conductor when the wire cable is cut.
[0005]
[Problems to be solved by the invention]
However, in the theft detection device disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 60-226979, it is possible to avoid the theft detection operation by separately forming a current bypass circuit in place of the conducting conductor of the wire cable. There was a problem.
[0006]
Further, in the theft detection device disclosed in Japanese Patent Application Laid-Open No. 58-120965, when a wire cable is cut by a metal tool such as a wire cutter, the conductor in the wire cable is short-circuited by the metal tool. It has become. For this reason, when it cut | disconnects using the tools which consist of nonelectroconductive materials, such as a ceramic knife, there existed a possibility that the disconnection of a wire cable could not be detected.
[0007]
In any case, the conventional theft detection device cannot detect both the disconnection and the short circuit of the wire cable, and has a problem that sufficient security cannot be ensured.
[0008]
Therefore, the present invention has been made in view of the above problems, and can reliably detect a disconnection or a short circuit due to a plan action on a wire cable to ensure sufficient security, and has an excellent anti-theft effect and portability. Combined theft detection device Place It is intended to provide.
[0009]
[Means for Solving the Problems]
In order to solve such a problem, the first invention detects a theft by detecting that a theft detection cable for connecting a theft detection target object to a structure is connected and the theft detection cable is disconnected. A pair of flexible signal lines The Tip In Connect with the specified resistor Shi The anti-theft detection cable and a housing in which the base end of the anti-theft detection cable is installed. Formed Of the theft detection cable In the state where the tip end portion of the theft detection cable having an insertion hole portion through which the tip end portion is inserted and a connecting portion by the resistor provided inside the insertion hole portion enters the insertion hole portion. The engagement / disengagement means for releasably engaging the distal end portion and the base end portion of the theft detection cable are connected, and the voltage applied to the signal line or the current flowing through the signal line when the signal line is energized. There is provided a theft detection device comprising: a theft monitoring unit that determines whether or not the theft detection cable is disconnected and short-circuited based on the disconnection or short-circuit and outputs an abnormality when it is determined that there is a disconnection or short-circuit.
[0010]
Such a theft detection device is connected to the tip by connecting a theft detection object such as an automobile, a motorcycle, a bicycle, a bag, valuables, and a pet to a structure such as a column, a fence or a bench with a theft detection cable. By monitoring the circuit formed by the resistor and the signal line with voltage or current, both the disconnection and the short circuit of the theft detection cable can be detected. Thus, the first invention can reliably detect the act of cutting the theft detection cable with a tool made of a non-conductive material and intentionally shorting the theft detection cable.
[0011]
In order to solve such a problem, the second invention is to notify the monitoring center when a theft detection cable for connecting the vehicle to the structure is connected and it is detected that the theft detection cable is cut. A pair of flexible signal lines for a vehicle theft detection device The Tip In Connect with the specified resistor Shi The anti-theft detection cable and a housing in which the base end of the anti-theft detection cable is installed. Formed Of the theft detection cable In the state where the tip end portion of the theft detection cable having an insertion hole portion through which the tip end portion is inserted and a connecting portion by the resistor provided inside the insertion hole portion enters the insertion hole portion. The engagement / disengagement means for releasably engaging the distal end portion and the base end portion of the theft detection cable are connected, and the voltage applied to the signal line or the current flowing through the signal line when the signal line is energized. Determine the presence or absence of a disconnection or short circuit of the theft detection cable based on the theft monitoring unit that outputs abnormally when it is determined that there is a disconnection or short circuit, and when the abnormal output is received from the theft monitoring unit, the positioning was performed There is provided a theft detection device comprising a reporting unit that reports an abnormal signal to the monitoring center together with a current position of a vehicle.
[0012]
Such a theft detection device is used to connect a theft detection object of a vehicle such as an automobile, a motorcycle, or a bicycle to a structure such as a column, a fence, or a bench with a theft detection cable, and a resistor and a signal connected to the tip. By monitoring the circuit formed by the line with voltage or current, both the disconnection and the short circuit of the theft detection cable can be detected, and an abnormal signal can be notified to the monitoring center together with the current position. As a result, the second invention makes it possible to reliably detect the act of cutting the theft detection cable with a tool made of a non-conductive material and deliberately shorting the theft detection cable. The location of the stolen vehicle can be ascertained.
[0013]
In a preferred mode, during the monitoring mode, an abnormal output is output when the tip of the theft detection cable falls off the engagement / disengagement means, and during the non-monitoring mode, the tip of the theft detection cable falls off the engagement / disengagement means. Make sure that no abnormal output occurs. According to this aspect, since not only the disconnection or short circuit of the theft detection cable but also the dropout of the tip can be detected, the security is improved.
[0014]
Further, according to a preferred aspect, when the non-monitoring mode is detected within a predetermined time after the drop-off state is detected, the abnormal output is canceled. According to this aspect, even if the user mistakenly disengages the theft detection cable before shifting from the monitoring mode to the non-monitoring mode, it is possible to prevent an abnormality from being immediately determined.
[0015]
Furthermore, in a preferred embodiment, the antitheft cable is housed in a winding mechanism that can be unwound / rewinded freely.
[0017]
A preferred embodiment of the theft detection cable has a coaxial structure in which a pair of signal lines are composed of a center conductor and an outer conductor, and the outer conductor is formed of a nickel-plated wire or a stranded wire of a stainless-plated wire. In addition, the tip of the center conductor and the tip of the outer conductor are connected via a predetermined resistor. . Such a theft detection cable can secure an anti-theft property that is not easily cut while maintaining flexibility enough to be unwound / rewinded by a winding mechanism.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a theft detection device and a theft detection cable according to the present invention will be specifically described below with reference to the drawings. In the present embodiment, a case where the theft detection device and the theft detection cable according to the present invention are adopted as a theft detection object in a motorcycle will be described as an example. Further, the theft detection target is not limited to a motorcycle as long as the user does not want to be stolen such as a car, bag, and valuables.
[0019]
FIG. 1 is a diagram showing an overview of a theft detection system including a theft detection device and a theft detection cable according to the present invention, and FIG. 2 is a diagram showing an embodiment of a theft detection device and a theft detection cable according to the present invention, FIG. 3 is a schematic view showing the overall configuration of the locking part including the theft detection cable according to the present invention, FIG. 4 is a partially enlarged sectional view showing the structure of the tip of the theft detection cable according to the present invention, and FIG. FIG. 6 is a diagram showing an example of the circuit configuration of the abnormality determination means of the theft detection apparatus according to FIG. 6, and FIG. 6 is an operation flowchart of the theft detection apparatus according to the present invention.
[0020]
First, an outline of a theft detection system including a theft detection cable and a theft detection device according to the present invention will be described with reference to FIG.
[0021]
As shown in FIG. 1, the theft detection system 1 includes a theft detection device 3, a GPS satellite 5, a satellite reference station 6, a base station 7, and a monitoring center 8.
[0022]
The GPS satellite 5 is a satellite orbiting in a low orbit of the earth, and transmits radio waves serving as an information source for calculating the position. The satellite reference station 6 calculates position error information based on radio waves transmitted from the respective GPS satellites 5. The base station 7 relays communication by the cellular phone system between the theft detection device 3 and the communication network. In the center device of the monitoring center 8, a location information management server 8a and a monitoring server 8b are arranged. The position information management server 8a calculates the latitude / longitude information with high accuracy by adding the error information of the GPS satellite 5 of the satellite reference station 6 and the position information of each base station 7 to the position information from the theft detection device 3. Yes. The theft detection device 3 is mounted on a motorcycle 9 that is a theft detection object, and has a GPS position measurement function that receives a signal from a GPS satellite 5 and determines a position on the ground.
[0023]
The highly accurate position information from the position information management server 8a of the monitoring center 8 is usually returned to the theft detection device 3, but this position information can also be used from the monitoring server 8b. Further, although the location information management server 8a is installed in the center device of the monitoring center 8 in FIG. 1, it may be installed outside the monitoring center 8 independently and connected to the communication network. .
[0024]
When the theft detection device 3 detects a theft abnormality of the motorcycle 9, the theft detection system 1 acquires the current position of the motorcycle 9 from the position information management server 8a and notifies the monitoring server 8b together with the abnormality signal. In the monitoring center 8, a monitoring person constantly monitors the monitoring server 8b. When the monitoring server 8b receives an abnormal signal or the like, it displays that fact on the display. The monitor looks at this display and takes appropriate measures such as calling the user and directing emergency response personnel to the site.
[0025]
Next, the configurations of the theft detection cable 2 and the theft detection device 3 according to the present invention will be described. As shown in FIG. 2, the theft detection device 3 is generally configured to include a locking unit 11 including a theft detection cable 2, a theft monitoring unit 12, and a notification unit 13.
[0026]
As shown in FIG. 3, the locking portion 11 includes a housing 14 fixed at a predetermined position of a motorcycle as a theft detection object, a base end portion 2 a built in the housing 14, and a distal end portion 2 b having a free end. A wire cable 2 as a theft detection cable extending out of the housing 14, an engagement / disengagement means 15 for engaging and dropping the tip portion 2 b of the wire cable 2 and the housing 14, and the housing 14. A winding mechanism 16 that is arranged and can freely unwind / rewind the wire cable 2 from the base end portion 2a side is schematically configured.
[0027]
As shown in FIG. 3, the housing 14 constitutes a main body of the locking part 11 and is configured in a substantially rectangular shape. The casing 14 is firmly fixed to a predetermined position of the motorcycle 9 with a bolt or the like via a mounting bracket (not shown). As a result, the housing 14 cannot be easily removed from the motorcycle 9.
[0028]
Insertion holes 17 and 18 through which the wire cable 2 can be inserted are formed at two locations on one side of the housing 14. One insertion hole 17 has a diameter larger than the outer diameter of the wire cable 2 and smaller than an engaging portion 29 of the wire cable 2 described later. The other insertion hole 18 has a diameter larger than that of the wire cable 2 and the engaging portion 29 of the wire cable 2. The wire cable 2 extends from the insertion hole 17 to the outside of the housing 14 with the distal end portion 2b as a free end in a state where the base end portion 2a is housed in the housing 14. FIG. 3 shows a state in which the wire cable 2 is fixedly connected to the housing 14 by the engagement / disengagement means 15.
[0029]
A display 19 is provided on the outer surface of the housing 14. In the example of FIG. 3, the display unit is an LED 19 and its wiring structure is illustrated. The LED 19 has an anode terminal and a cathode terminal connected to the theft monitoring unit 12 via the internal wiring 20 in the housing 14. The LED 19 is turned on when the wire cable 2 is energized to notify the outside that the motorcycle 9 is being monitored for theft.
[0030]
Further, on the outer surface of the housing 14, an operation button 21 for operating fixing / releasing of the distal end portion 2 b of the wire cable 2 with respect to the housing 14 and rotation / stop of the winding portion 16 a of the winding mechanism 16 is provided. ing. The operation button 21 is always urged in a direction to be pushed back by urging means 22 such as a spring or a spring. That is, the operation button 21 can be automatically returned to the original position (position indicated by a one-dot chain line in FIG. 3) by the urging force of the urging means 22 when the pressing is released.
[0031]
As shown in FIG. 3, a plate-like engagement piece 23 that is interlocked with the pressing of the operation button 21 is provided at the bottom of the operation button 21. As shown in FIG. 3, the engaging piece 23 is bent into an L shape at its tip to form a claw 23a. The engagement piece 23 is formed with an engagement hole 23b into which an engagement portion 29 of the wire cable 2 described later is engaged. The engagement hole 23b is a part of the configuration of the engagement / disengagement means 15, and is formed in the engagement piece 23 so as to face the other insertion hole 18 of the housing 14 when the operation button 21 is pressed. . The engagement piece 23 is engaged with the gear train 16 b of the winding mechanism 16 by the claw 23 a at the tip thereof when the operation button 21 is not pressed. Thereby, the winding part 16a of the winding mechanism 16 is prevented from rotating. On the other hand, when the operation button 21 is pressed, the engagement between the claw 23b of the engagement piece 23 and the gear train 16b of the winding mechanism 16 is released. Thereby, the winding part 16a of the winding mechanism 16 becomes rotatable, and can be easily drawn out by pulling out the wire cable 2 by hand.
[0032]
The operation button 21 can be prevented from being pressed by a dial lock (not shown). Thereby, it is possible to prevent the operation button 21 from being inadvertently pressed and operated.
[0033]
The wire cable 2 has a pair of signal lines 24 and 25 made of a flexible conductor. The wire cable 2 in this example has a coaxial structure in which one signal line 24 forms a central conductor (core wire) and the other signal line 25 forms an outer conductor. Therefore, as shown in FIGS. 3 and 4, the periphery of one signal line 24 serving as a central conductor is covered with an insulating member 26, and the other signal line 25 serving as an outer conductor is formed around the insulating member 26. The periphery of the other signal line 25 is covered with an insulating member 27.
[0034]
Moreover, the wire cable 2 is formed by a thin wire having an outer diameter of about 3 mm, for example. Further, as a material of the pair of signal lines 24 and 25, a wire material that is highly conductive and strong and has flexibility is used. As a result, the wire cable 2 can be wound by the winding mechanism 16 from the base end portion 2a side. More specifically, a preferable strength and flexibility can be obtained by using a nickel-plated wire or a stainless-plated wire as the outer conductor 25 and knitting these wires into a stranded wire.
[0035]
The distal end portion of the central conductor 24 of the wire cable 2 and the distal end portion of the outer conductor 25 are connected via a resistor 28 having a predetermined resistance value. As the resistor 28, a resistor having a sufficiently large value as compared with the line resistance of the wire cable 2 is used. Specifically, it is preferable to use a resistor 28 having a large resistance value 100 times or more of the line resistance.
[0036]
In the wire cable 2, the base end portion 2 a is built in the housing 14 and attached to the winding portion 16 a of the winding mechanism 16, and the distal end portion 2 b is set as a free end from one insertion hole 17 of the housing 14. Is extended outside.
[0037]
An engagement portion 29 that is a part of the configuration of the engagement / disengagement means 15 is fitted to the distal end portion 2 b of the wire cable 2. The engaging portion 29 is formed of a substantially cylindrical member having a tip portion that is tapered and formed to have a diameter larger than the outer diameter of the wire cable 2. A permanent magnet 30 is embedded in the engagement portion 29. Further, a notch 29 a is formed in the outer peripheral portion at the midway position of the engaging portion 29. The notch 29 a is engaged with the engagement hole 23 b of the engagement piece 23 when the distal end 2 b of the wire cable 2 is fixed to the housing 14.
[0038]
In addition, a reed switch 31 that opens and closes contacts in response to a magnetic force is disposed inside the housing 14. This reed switch 31 constitutes engagement / disengagement detection means 32 that detects whether the wire cable 2 is engaged or disconnected with respect to the housing 14 in combination with the permanent magnet 30. The reed switch 31 is disposed at a position facing the permanent magnet 30 in the engaging portion 29 of the wire cable 2 when the distal end portion 2 b of the wire cable 2 is fixed to the housing 14. One end of the reed switch 31 is connected to the central conductor 24 of the wire cable 2, and the other end is connected to the theft monitoring unit 12 via the internal wiring 20 and the lead wire 52.
[0039]
The winding mechanism 16 has a winding portion 16 a formed in a substantially disc shape inside the housing 14. The winding portion 16a is pivotally supported on the inner surface of the housing 14 so that the center axis can rotate, and the wire cable 2 can be wound and fed out.
[0040]
The proximal end portion 2a of the wire cable 2 is connected to the winding portion 16a. The winding portion 16a is always urged in the rotational direction in the winding direction of the wire cable 2 by a biasing means (not shown). Further, a gear train 16b is formed along the circumferential direction at the outer peripheral surface edge of the winding portion 16a. The gear train 16b meshes with a piece claw 23a formed at the tip of the engagement piece 23 in a state where the operation button 21 is not pressed.
[0041]
Next, the configuration of the theft monitoring unit 12 will be described. The theft monitoring unit 12 uses electric power from the vehicle battery of the motorcycle 9 as a driving power source. Further, the theft monitoring unit 12 is provided separately from the casing 14 of the locking unit 11 and is provided, for example, under the seat of the motorcycle 9 except for the remote control transmitter 41.
[0042]
As shown in FIG. 2, the theft monitoring unit 12 includes a remote control transmitter 41, a remote control receiver 42, a signal determination unit 44, an engagement / disconnection determination unit 45, and a mode switching unit 46 possessed by the user who is the owner of the motorcycle 9. , A vibration waveform discriminating unit 47, a cable monitoring unit 48, a buzzer 49 as a reporting unit, and a reporting interface (reporting I / F) 50.
[0043]
The remote control transmitter 41 transmits a mode switching signal to the remote control receiver 42 by a radio signal such as infrared rays by an operation of the owner of the motorcycle 9, for example. As the mode switching signal, two kinds of signals, ie, a mode switching sound signal and a mode switching non-ringing signal can be transmitted, and one of the signals is transmitted from the remote control transmitter 41 to the remote control receiver 42. Further, the radio signal transmitted from the remote control transmitter 41 includes an ID code unique to the remote control transmitter 41.
[0044]
Here, the mode switching sound signal causes the buzzer 49 as a notification means to be sounded simultaneously with the mode switching between the monitoring mode for monitoring the theft of the motorcycle 9 and the non-monitoring mode for not monitoring the theft of the motorcycle 9. It is a signal for. The mode switching non-ringing signal is a signal for performing only the mode switching between the monitoring mode and the non-monitoring mode and not causing the buzzer 49 as a notification means to ring.
[0045]
When receiving the radio signal from the remote control transmitter 41, the remote control receiver 42 outputs the received signal to the signal determination unit 44. The signal received at that time includes an ID code for authenticating whether or not the signal is from a predetermined remote control transmitter 41.
[0046]
The signal discriminating means 44 discriminates whether or not the ID code is a predetermined signal from the remote control transmitter 41 when the mode switching signal including the ID code is input from the remote control receiver 42. The signal determination unit 44 outputs a mode switching sound signal or a mode switching non-ring signal to the mode switching unit 46 when it is determined that the ID code authentication is OK.
[0047]
Here, in the monitoring mode, the wire cable 2 is energized to constantly detect the voltage, and a vibration pulse from a vibration sensor 51 described later is detected, and the theft of the motorcycle 9 is monitored based on these detection results. Mode. The non-monitoring mode is a mode in which energization to the wire cable 9 is stopped, and detection of the vibration pulse from the vibration sensor 51 is stopped to stop monitoring the theft of the motorcycle 9. In the monitoring mode, the LED 19 is turned on, and in the non-monitoring mode, the LED 19 is turned off.
[0048]
The engagement / disengagement determination unit 45 determines whether or not the distal end portion 2b of the wire cable 2 is fixedly connected to the housing 14. This determination is made based on the energization state of the wire cable 2 that accompanies opening and closing of the contact of the reed switch 31. That is, the engaging portion 29 of the wire cable 2 is inserted into the engaging hole 23b of the engaging piece 23, and the wire cable 2 is locked. In this state, the contact point of the reed switch 31 is closed by the magnetic force of the permanent magnet 30 housed in the engaging portion 29 and the wire cable 2 is energized. When a normal voltage is detected, the distal end portion 2b of the wire cable 2 is It is determined that the body 14 is fixedly connected.
[0049]
In this embodiment, the wire cable 2 is energized to determine engagement / disengagement. However, the present invention is not limited to this. For example, it is determined that the engagement portion 29 is inserted into the engagement hole 23b. You may discriminate | determine by whether it has detected with the button switch.
[0050]
The mode switching unit 46 performs control to switch the current mode from the monitoring mode to the non-monitoring mode or from the non-monitoring mode to the monitoring mode based on the input from the signal determination unit 45.
[0051]
That is, when a mode switching ringing signal is input from the signal discriminating means 45, the wire cable 2 is energized for a moment from the energizing means 48c, and the engagement / disengagement discriminating means 45 determines whether or not the wire cable 2 is engaged. Determine. If it is in the engaged state, the buzzer 49 is sounded together with the mode switching, and the LED 19 is turned on / off. The user recognizes that the mode has been changed by sounding the buzzer 49 and turning on / off the LED 19.
[0052]
On the other hand, if the wire cable 2 is not in the engaged state and is in the detached state, the mode transition from the non-monitoring mode to the monitoring mode is not performed, the buzzer 49 does not sound, and the LED 19 remains off. Thereby, the user recognizes that the mode cannot be shifted to the monitoring mode because the wire cable 2 is not engaged. And it is preventing changing to the monitoring mode in the state where the wire cable 2 is not reliably engaged. In the case of mode transition from the monitoring mode to the non-monitoring mode, the buzzer 49 is sounded together with the mode switching, and the LED 19 is turned off. Further, a mode transition signal is output to the time measuring means 48d described later. The user recognizes that the mode has been changed by sounding the buzzer 49 and turning off the LED 19.
[0053]
In the case of the input of the mode switching non-ringing signal from the signal determining means 45, the same operation as that of the mode switching ringing signal is executed except that the buzzer 49 does not ring. This mode switching non-ringing signal is to prevent the nearby person from being disturbed by the ringing of the buzzer 49 when the motorcycle 9 is parked in an apartment or the like at midnight.
[0054]
The vibration waveform discriminating means 47 outputs the output of the vibration sensor 51 attached to a predetermined part of the vehicle body of the motorcycle 9 and a plurality of pre-registered vibration patterns (for example, vibration caused by engine sound of a motorcycle or intentional movement of the motorcycle). For example, a vibration pattern such as a strong wind) for distinguishing from the vibration pattern associated with. The determination result is output to the cable monitoring means 48.
[0055]
The cable monitoring unit 48 includes an energizing unit 48a, a voltage detecting unit 48b, an abnormality determining unit 48c, a time measuring unit 48d, and a theft presence / absence determining unit 48e.
[0056]
The energization means 48 a is connected to the internal wiring 20 in the housing 14 of the locking portion 11 via the lead wire 52, and the pair of signal lines (the central conductor 24 and the outer conductor 25) of the wire cable 2 via the internal wiring 20. ) Of the base end 2a. As a result, as shown in FIG. 3, as viewed from the energizing means 48a, the lead wire 52 → the internal wiring 20 → the reed switch 31 → the internal wiring 20 → the central conductor 24 of the wire cable 2 → the resistor 28 → the outside of the wire cable 2 A signal path 53 of the conductor 25 → the internal wiring 20 → the lead wire 52 is formed. The energization unit 48 a energizes the wire cable 2 through the signal path 53 when the mode is switched to the monitoring mode by the mode switching unit 46, and allows a weak current to flow through the wire cable 2.
[0057]
The voltage detector 48b detects the voltage output from the wire cable 2 when the wire cable 2 is energized from the energizer 48a via the internal wiring 20, and the detection signal (voltage value) at that time is abnormal. This is output to the discriminating means 48c.
[0058]
The abnormality determination unit 48c determines whether or not the wire cable 2 is disconnected or short-circuited based on the voltage value detected by the voltage detection unit 48b. For example, as shown in FIG. 5, the abnormality determination unit 48 c includes two comparators 54 and 55 and a logical product circuit 56. A reference voltage of threshold A for detecting a short circuit of the wire cable 2 is input to the non-inverting terminal (+) of one comparator 54. The reference voltage of the threshold value B for detecting the disconnection of the wire cable 2 is input to the inverting terminal (−) of the other comparator 55. The detection voltage from the voltage detection means 48 b is input to the inverting terminal (−) of one comparator 54 and the non-inverting terminal (+) of the other comparator 55. In this abnormality determination means 48c, the detection voltage detected by the voltage detection means 48b is divided into cases using two comparators 54 and 55, and the logical product of the outputs of these two comparators 54 and 55 is taken to disconnect the wire cable 2. And whether or not there is a short circuit.
[0059]
That is, the abnormality determining means 48c having the configuration shown in FIG. 5 determines that there is no disconnection or short circuit of the wire cable 2 when the condition of threshold value B <detection voltage <threshold value A is satisfied, and measures the normal signal. It outputs to the means 48d. On the other hand, when the detected voltage is larger than the threshold value A or smaller than the threshold value B, it is determined that the wire cable 2 is disconnected or short-circuited, and an abnormal signal is output to the time measuring means 48d.
[0060]
The time measuring means (timer) 48d starts measuring time when the abnormality determining means 48c determines that the wire cable 2 is disconnected or short-circuited and an abnormal signal is input. Further, the time counting unit 48d ends the time counting when a signal for shifting to the non-monitoring mode is input from the mode switching unit 46 during the time counting.
[0061]
The theft presence / absence determining means 48e determines the presence / absence of the theft of the motorcycle 9 based on the count time t counted by the time measuring means 48d. The theft presence / absence determining means 48e determines that the motorcycle 9 has been stolen when a predetermined time (set time T) has elapsed since the time measurement by the time measuring means 48d was started. When it is determined that the motorcycle 9 has been stolen, the buzzer 49 is sounded and an abnormal signal indicating that fact is output to the reporting unit 13 via the reporting I / F 50.
[0062]
The reporting I / F 50 outputs an abnormal signal to the reporting unit 13 when receiving an abnormal signal indicating that the motorcycle 9 has been stolen from the theft presence / absence determining means 48e.
[0063]
Next, the configuration of the reporting unit 13 will be described. As shown in FIG. 2, the reporting unit 13 includes a small wireless communication terminal, and includes an antenna 61, a communication unit 62, a control unit 63, a storage unit 64, and a connection interface (connection I / F) 65. Outlined. The reporting unit 13 is wired to the reporting I / F 50 of the theft monitoring unit 12 via a connection I / F 65. The reporting unit 13 is configured separately from the casing 14 of the locking unit 11 and the main body of the theft monitoring unit 12. For example, the notification unit 13 is disposed together with the main body of the theft monitoring unit 12 under the seat of the motorcycle 9. Has been. The notification unit 13 receives a signal from the GPS satellite 5 shown in FIG. 1, calculates an approximate current position, and communicates with the monitoring center 8 and the like using radio waves from a mobile phone. The reporting unit 13 uses the power from the rechargeable battery 66 built in the main body as a driving power source. The rechargeable battery 66 is configured to be rechargeable from the in-vehicle battery via the theft monitoring unit 12.
[0064]
The antenna 61 receives the radio wave of the GPS satellite 5 in FIG. 1 and the radio wave of the mobile phone. The communication unit 62 performs radio wave reception processing of the GPS satellite 5 from the antenna 61 and mobile phone radio wave transmission / reception processing. The communication unit 62 detects the reception state of the radio waves of the mobile phone at all times or at predetermined intervals.
[0065]
The control unit 63 is constituted by, for example, a microprocessor, receives an abnormal signal from the theft monitoring unit 12 or a communication command from the monitoring center 8 via the connection I / F 65, and displays the measured current position information together with the abnormal signal. Or the process which reports to the monitoring center 8 independently is performed. The processing of the control unit 63 is executed based on a processing program stored in the storage unit 64 in advance. Further, the storage unit 64 stores data calculated based on radio waves from the GPS satellite 5.
[0066]
Next, an operation procedure at the time of theft monitoring by the theft monitoring system 1 configured as described above will be described in order.
[0067]
First, when the motorcycle 9 is fastened to the structure 67, the wire cable 2 having the above-described configuration is wound around the structure 67 such as a utility pole as shown in FIG. Thereafter, the distal end portion 2 b of the wire cable 2 is connected and fixed to the housing 14 by the engagement / disengagement means 15. Thereby, the vehicle body of the motorcycle 9 is secured to the structure 67.
[0068]
Further, the operation when the distal end portion 2b of the wire cable 2 is connected and fixed to the housing 14 by the engagement / disengagement means 15 will be described. With the operation button 21 pressed, the engaging portion 29 of the wire cable 2 is inserted through the other insertion hole 18, and the engaging portion of the wire cable 2 is inserted into the engaging hole 23 b of the engaging piece 23 facing the insertion hole 18. 29 is inserted. The engagement portion 29 of the wire cable 2 is inserted into the engagement hole 23b, and the pressing of the operation button 21 is released in a state where the notch portion 29a of the engagement portion 29 is positioned in the engagement hole 23b. Thus, in conjunction with the return of the operation button 21 to the original position, the engagement hole 23b presses and contacts the outer peripheral surface of the cutout portion 29a of the engagement portion 29 of the wire cable 2, and the distal end portion 2b of the wire cable 2 Is fixed to the housing 14 (locked state).
[0069]
Further, when the operation button 21 is pressed in the locked state, the pressing contact of the engaging hole 23b with the notch 29a of the engaging portion 29 of the wire cable 2 is released, and the distal end portion 2b of the wire cable 2 with respect to the housing 14 is released. Is fixed. At this time, the engagement between the claw 23a of the engagement piece 23 and the gear train 16b of the winding mechanism 16 is also released. As a result, the winding portion 16a of the winding mechanism 16 starts to rotate in the winding direction due to the urging force, so that the engaging portion 29 of the wire cable 2 falls out of the engaging hole 23b of the engaging piece 23, and the wire cable 2 Is wound into the housing 14 by the winding mechanism 16 from the base end portion 2a side (non-locked state).
[0070]
Note that when the wire cable 2 is wound, the diameter of the one insertion hole 17 is smaller than that of the engaging portion 29, so that the engaging portion 29 of the wire cable 2 is wound into the housing 14. The engaging portion 29 protrudes from the one insertion hole 17 to the outer surface of the housing 14.
[0071]
Next, a processing procedure executed by the theft monitoring unit 12 will be described with reference to an operation flowchart of FIG.
[0072]
In the initial state, the mode is set to the non-monitoring mode, and for example, a mode switching signal from the remote control transmitter 41 owned by the owner of the motorcycle 9 is on standby. In this state, when the remote control receiver 42 receives the mode switching signal from the remote control transmitter 41 (ST1), the signal determining means 44 is a signal from the remote control transmitter 41 in which the ID code included in the mode switching signal is predetermined. Is determined (ST2). When this ID code authentication is determined to be NG (ST2-No), the operation is terminated. On the other hand, if it is determined that the ID code authentication is OK (ST2-Yes), it is determined whether the current mode is the non-monitoring mode (ST3).
[0073]
Here, when it is determined that the current mode is not the non-monitoring mode, that is, the monitoring mode (ST3-No), the mode switching unit 46 switches from the monitoring mode to the non-monitoring mode (ST4), and the operation ends. At this time, the LED 19 is turned off, and the buzzer 49 beeps briefly to notify that the mode has been switched from the monitoring mode to the non-monitoring mode. When the signal from the remote control transmitter 41 is a mode switching non-ring signal, only the LED 19 is turned off and the buzzer 49 does not ring. On the other hand, when it is determined that the current mode is the non-monitoring mode (ST3-Yes), it is determined whether or not the wire cable 2 is in the locked state (ST5).
[0074]
Whether or not the wire cable 2 is in the locked state is determined normally when the current path 48 including the wire cable 2 is energized by the energizing means 48a and a current flows through the signal path 53 as the contacts of the reed switch 31 are opened and closed. This is done depending on whether or not a correct voltage is detected. At this time, if the wire cable 2 is not in the locked state (ST5-No), no current flows through the signal path 53 while the contact of the reed switch 31 is open, and a normal voltage is not detected. In this case, the energization of the wire cable 2 by the energizing means 48a is stopped and the operation is terminated. On the other hand, if the wire cable 2 is in a locked state (ST5-Yes), the contact of the reed switch 31 is closed by the permanent magnet 30 embedded in the engaging portion 29 of the wire cable 2, and current flows through the signal path 53. Normal voltage is detected. In this case, the mode switching means 46 switches from the non-monitoring mode to the monitoring mode (ST6). At this time, the LED 19 is turned on and the buzzer 49 is briefly sounded to notify that the mode has been switched from the non-monitoring mode to the monitoring mode. When the signal from the remote control transmitter 41 is a mode switching non-ring signal, only the LED 19 is lit and the buzzer 49 does not ring.
[0075]
When the mode is switched to the monitoring mode (ST6), it is determined again whether or not a mode switching signal is received from the remote control transmitter 41 (ST7). Here, when a mode switching signal is received from the remote control transmitter 41 (ST7-Yes), the mode switching means 46 switches from the monitoring mode to the non-monitoring mode (ST4), and the operation ends. At this time, the LED 19 is turned off, and the buzzer 49 beeps briefly to notify that the mode has been switched from the monitoring mode to the non-monitoring mode. When the signal from the remote control transmitter 41 is a mode switching non-ring signal, only the LED 19 is turned off and the buzzer 49 does not ring. On the other hand, if no mode switching signal is received from the remote control transmitter 41 (ST7-No), the output of the vibration sensor 51 is compared with the registered vibration pattern to determine whether the output is due to an abnormality (ST8).
[0076]
If it is determined that the output of the vibration sensor 51 is abnormal (ST8-Yes), the motorcycle 9 is vibrated due to some external factor, and time measurement by the time measuring means 48d is started ( ST10). On the other hand, if it is determined that the output of the vibration sensor 51 is not due to an abnormality (ST8-No), the detected voltage from the voltage detecting means 48b is such that the threshold value B <the detected voltage <the threshold value A. It is determined whether or not the condition is satisfied (ST9). When the condition of threshold value B <detection voltage <threshold value A is satisfied (ST9-Yes), the operation returns to ST7. On the other hand, if the condition of threshold value B <detection voltage <threshold value A is not satisfied (ST9-No), the time measuring means 48d starts measuring a predetermined time (set time T) (ST10).
[0077]
Here, the state in which the condition of threshold value B <detection voltage <threshold value A is not satisfied means that the detection voltage of the voltage detection means 48b first shows a maximum value compared with the threshold value A of the comparator 54. It is in a state. In this case, the detection voltage is not consumed by the resistor 28 of the wire cable 2. That is, a short circuit is established at any point in the signal path 53 including the wire cable 2.
[0078]
In addition, the state in which the detection voltage of the voltage detection unit 48b shows a minimum value compared with the threshold value B of the comparator 55 also does not satisfy the condition of threshold value B <detection voltage <threshold value A. In this case, it will be in the disconnection state interrupted in any part of the signal path | route 53 containing the wire cable 2. FIG.
[0079]
Next, it is determined whether or not the count time t by the time measuring means 48d exceeds a predetermined time T (ST11). If the count time t by the time measuring means 48d does not exceed the predetermined time T (ST11-No), it is determined whether or not a mode switching signal is received from the remote control transmitter 41 (ST12). If no mode switching signal is received from the remote control transmitter 41 (ST12-No), the process returns to ST11 and the time measurement by the time measuring means 48d is continued. On the other hand, when a mode switching signal is received from the remote control transmitter 41 (ST12-Yes), the mode switching means 46 switches from the monitoring mode to the non-monitoring mode (ST4), and the operation ends. At this time, the LED 19 is turned off, and the buzzer 49 beeps briefly to notify that the mode has been switched from the monitoring mode to the non-monitoring mode. When the signal from the remote control transmitter 41 is a mode switching non-ring signal, only the LED 19 is turned off and the buzzer 49 does not ring.
[0080]
When the count time t by the time counting means 48d exceeds the predetermined time T (ST11-Yes), it is determined that the wire cable 2 is disconnected or short-circuited, an abnormal signal is output, and the buzzer 49 is used as an alarm sounding and reporting process. It rings and outputs an abnormal signal to the reporting unit 13 via the reporting I / F 50 (ST13).
[0081]
In the above-described operation, when the wire cable 2 is in the unlocked state during the monitoring mode, that is, when the wire cable 2 is detached from the engagement hole 23b of the engagement piece 23, the contact of the reed switch 31 is opened. The signal line 53 including the wire cable 2 is disconnected. Accordingly, in this case, since the detection voltage of the voltage detection unit 48b does not satisfy the condition of threshold value B <detection voltage <threshold value A, the time counting unit 48d starts counting for the predetermined time T. If the count time by the time counting means 48d has passed the predetermined time T, it is determined that the wire cable 2 has been intentionally dropped, and the buzzer 49 is sounded and an abnormal signal is sent via the notification I / F 50. 13 is output. Further, when a mode switching signal is received from the remote control transmitter 41 before the count time has passed the predetermined time T, it is determined that the wire cable 2 has been dropped due to an erroneous operation, the abnormal output is canceled, and the mode switching means 46 monitors. Switch from mode to unsupervised mode.
[0082]
Next, the operation of the reporting unit 13 when a disconnection or short circuit of the wire cable 2 is detected and an abnormal signal is output from the theft monitoring unit 12 will be described.
[0083]
When the reporting unit 13 receives an abnormal signal from the theft monitoring unit 12 via the connection I / F 50, the reporting unit 13 operates the GPS position measurement function and receives the GPS signal at the antenna 61 and the communication unit 62. Next, the mobile phone function is used to connect to the position information management server 8a via the communication network, and the position is corrected and an accurate current position is calculated. Thereafter, the reporting unit 13 receives an accurate calculation result of the current position from the position information management server 8a, and sends an abnormality signal (an abnormality signal indicating that the motorcycle has been stolen) from the theft monitoring unit 12 together with the position information. The data is transmitted to the monitoring server 8b of the monitoring center 8 via the network.
[0084]
When the monitoring server 8b receives the theft information from the reporting unit 13 or the user, the monitoring center 8 confirms the current position of the reporting unit 13 from the location information management server 8a and notifies the user of the status. In some cases, an emergency response person having a countermeasure terminal is rushed to the site at the request of the user, and the motorcycle 9 transmitting an abnormal signal is searched.
[0085]
As described above, according to the theft detection device 3 having the above-described configuration, the signal path 53 including the wire cable 2 serving as the energization path having the pair of signal lines 24 and 25 having the distal ends connected via the resistor 28 is energized. Then, depending on whether or not the detection voltage at that time satisfies the condition of threshold value B <detection voltage <threshold value A, disconnection and short-circuiting of the wire cable 2 are reliably detected to detect theft of the motorcycle. Can do.
[0086]
For example, when a third party cuts the wire cable 2 using a wire cutter having conductivity, the pair of signal lines 24 and 25 constituting the wire cable 2 are short-circuited by the wire cutter while the wire cable 2 is being cut. Indicates a value larger than the threshold value A and is determined to be abnormal, so that a short circuit of the wire cable 2 can be detected instantaneously. Even when the wire cable 2 is cut using a tool made of a non-conductive material, if either one of the pair of signal lines 24 and 25 constituting the wire cable 2 is cut, the detected voltage at that time Shows a value smaller than the threshold value B and is determined to be abnormal, so that disconnection can be detected instantaneously. Thus, effective theft prevention can be realized.
[0087]
In addition, since the resistor 28 is provided at the distal ends of the pair of signal lines 24 and 25 on the side of the engaging portion 29 of the wire cable 2 fixedly connected to the housing 14, the wire cable is provided in the middle as in the prior art. Even if the current detour is formed separately, it can be detected as a change in the detection voltage when the wire cable 2 is energized, and therefore, it is possible to reliably prevent the act of planning to avoid theft detection.
[0088]
Further, a reed switch 31 whose contact is opened and closed by the magnetic force of the permanent magnet 30 embedded in the engaging portion 29 of the wire cable 2 is used to determine whether the voltage value of the signal path 53 including the reed switch 31 is normal or not. Since the detection of the locked state and the unlocked state of the cable 2 is performed, the mode can be switched to the monitoring mode with certainty, and theft can be prevented very effectively in the monitoring mode.
[0089]
Moreover, since the wire cable 2 is formed of a thin wire with high strength, it is easy to handle and it is possible to make bending and cutting difficult. Moreover, since the wire cable 2 is wound into the housing 14 by the winding mechanism 16 when not in use, the appearance can be improved and the apparatus can be downsized.
[0090]
Furthermore, when the reporting unit 13 receives a vehicle abnormality signal from the theft monitoring unit 12, the reporting unit 13 transmits the current location information of the theft detection device 3 to the monitoring center 8 together with the abnormality signal. To explore.
[0091]
By the way, in this Embodiment, the structure which discriminate | determines the presence or absence of abnormality (a disconnection or a short circuit) of the wire cable 2 based on the voltage value when it supplies with electricity to the signal path | route 53 containing a pair of signal wire | line 24,25 of the wire cable 2. However, it may be configured to detect a change in the value of the current flowing through the signal path 53.
[0092]
In the present embodiment, the tip ends of the pair of signal lines 24 and 25 of the wire cable 2 are connected via the resistor 28, but a capacitor may be connected in series to the resistor 28. . In this case, a constant pulse is always generated from the energization means 48a of the theft monitoring unit 12, and is converted into an intermittent current by a transistor that is activated only when this pulse is present. Change).
[0093]
Furthermore, although the theft monitoring unit 12 and the reporting unit 13 have been described as receiving power from a vehicle-mounted battery, a rechargeable battery or a dry battery may be used as a power source.
[0094]
Further, in the present embodiment, the theft detection device 3 is configured with three cases of the lock unit 11, the theft monitoring unit 12, and the reporting unit 13, but the configuration in which the theft monitoring unit 12 has the function of the reporting unit 13 is provided. It is also possible.
[0095]
Further, in the present embodiment, as the engagement / disengagement means 15 for fixing the wire cable 2 to the housing 14, the wire cable is inserted into the engagement hole 23b of the engagement piece 23 that is interlocked with the operation button 21 that is always urged in the pushing back direction. Although the configuration has been described in which the notch portion 29a of the two engaging portions 29 is engaged, the configuration is not limited to this configuration.
[0096]
For example, a solenoid that operates based on a mode switching signal from the remote control transmitter 41 can be used. In this case, the solenoid is energized only while the monitoring mode is selected by the mode switching signal from the remote control transmitter 41, and the tip of the solenoid is engaged with the notch 29a of the engaging portion 29 of the wire cable 2. Thereby, it is possible to prevent the wire cable 2 from being inadvertently dropped during the monitoring mode.
[0097]
In the present embodiment, the object of theft detection has been described by taking a motorcycle as an example. However, this is not limited, and the object is not limited to a bicycle such as a bicycle, but is used in a travel trunk or a handbag. The same effect can be obtained. In this case, a rechargeable battery or a dry battery is used as the power source.
[0098]
【The invention's effect】
As is apparent from the above description, according to the present invention, the detection voltage or the detection when the pair of signal lines of the theft detection cable is connected to the distal ends of the pair of signal lines and the pair of signal lines are energized. Since the presence or absence of disconnection or short-circuit is determined based on the current, not only the disconnection of the theft detection cable but also the short-circuit of the signal line in the middle of the disconnection is detected, and theft of the theft detection object including the vehicle is reliably detected. be able to. Moreover, even when a signal detour is separately formed in the middle of the signal line as in the past and a plan action is attempted, since a disconnection or a short circuit of the signal path is detected, theft detection cannot be avoided, There is an effect that theft can be extremely effectively prevented.
[0099]
Moreover, since the reporting unit is configured to report the abnormal output to the monitoring center together with the current position information measured when receiving the abnormal output from the theft monitoring unit, it is possible to immediately search for the stolen vehicle.
[0100]
Further, since the engagement state or the disconnection state of the theft detection cable with respect to the main body is detected and an abnormal output is detected when the disconnection state is detected during the monitoring mode, it is possible to reliably detect the intentional disconnection of the theft detection cable. .
[0101]
In addition, if the theft detection cable is disconnected from the main unit, the abnormal output will be canceled if the system shifts to the non-monitoring mode within a specified time. It is possible to prevent abnormal output due to.
[0102]
Furthermore, the theft detection cable has a coaxial structure, and the outer conductor is formed of a thin high-strength wire made of nickel-plated wire or stainless-plated wire, making it easy to handle and difficult to bend or cut. be able to. In addition, since the theft detection cable is wound and housed in the housing when not in use, the appearance can be improved and the device can be miniaturized, enabling an excellent anti-theft effect and portability. The effect of doing.
[Brief description of the drawings]
FIG. 1 is a diagram showing an overall outline of a theft detection system including a theft detection device and a theft detection cable according to the present invention;
FIG. 2 is a diagram showing an embodiment of a theft detection device and a theft detection cable according to the present invention.
FIG. 3 is a schematic diagram showing the overall configuration of a locking part including a theft detection cable according to the present invention.
FIG. 4 is a partially enlarged sectional view showing the structure of the tip of a theft detection cable according to the present invention.
FIG. 5 is a diagram showing a circuit configuration example of an abnormality determination unit of the theft detection device according to the present invention.
FIG. 6 is an operation flowchart of the theft detection device according to the present invention.
[Explanation of symbols]
2 ... Theft detection cable (wire cable), 3 ... Theft detection device, 9 ... Theft detection object (motorcycle), 11 ... Locking unit, 12 ... Theft monitoring unit, 13 ... Notification unit, 14 ... Housing, 15 ... engaging / disengaging means, 16 ... winding mechanism, 24 ... signal line (center conductor), 25 ... signal line (outer conductor), 28 ... resistor, 32 ... engaging / disengaging detecting means, 67 ... structure.

Claims (6)

A theft detection device that detects a theft by detecting that the theft detection cable is disconnected and connected to a theft detection cable that connects the theft detection object to the structure,
A theft detection cable connected at a predetermined resistor at the tip of the pair of signal lines of a flexible,
An insertion hole portion through which the distal end portion of the theft detection cable is inserted and formed in a housing in which a proximal end portion of the theft detection cable is internally provided;
The theft detection disengagement means the tip engages the tip to disengageably in a state that has entered into the insertion hole of the cable having a connecting portion by the resistor provided inside the insertion hole When,
Whether the theft detection cable is disconnected or short-circuited is determined based on the voltage applied to the signal line when the base end of the theft detection cable is connected and the signal line is energized or the current flowing through the signal line. And a theft monitoring unit that abnormally outputs when it is determined that there is a disconnection or a short circuit. A theft detection device for a vehicle for reporting to a monitoring center when a theft detection cable for connecting a vehicle to a structure is connected and detecting that the theft detection cable is disconnected,
A theft detection cable connected at a predetermined resistor at the tip of the pair of signal lines of a flexible,
An insertion hole portion through which the distal end portion of the theft detection cable is inserted and a base end portion of the theft detection cable is built and formed in a housing fixed to the vehicle ;
The theft detection disengagement means the tip engages the tip to disengageably in a state that has entered into the insertion hole of the cable having a connecting portion by the resistor provided inside the insertion hole When,
Whether the theft detection cable is disconnected or short-circuited is determined based on the voltage applied to the signal line when the base end of the theft detection cable is connected and the signal line is energized or the current flowing through the signal line. A theft monitoring unit that abnormally outputs when it is determined that there is a disconnection or a short circuit;
A theft detection apparatus comprising: a reporting unit that reports an abnormal signal to the monitoring center together with the current position of the vehicle that has been positioned when receiving an abnormal output from the theft monitoring unit. Engagement / disengagement detection means for detecting whether the tip of the theft detection cable is engaged or dropped by the engagement / disengagement means
Mode switching means for switching to a monitoring mode or a non-monitoring mode,
The theft monitoring unit outputs an abnormality when the engagement / disengagement detection unit detects a dropout state during the monitoring mode, and does not output an abnormality even when the engagement / disconnection detection unit detects a dropout state during the non-monitoring mode. The theft detection device according to claim 1 or 2.   The theft monitoring device according to claim 3, wherein the theft monitoring unit cancels the abnormal output when it shifts to the non-monitoring mode within a predetermined time after detecting the drop-off state.   The theft detection device according to any one of claims 1 to 4, further comprising a winding mechanism capable of freely unwinding / rewinding the theft detection cable. The theft detection cable is
The pair of signal lines has a coaxial structure composed of a central conductor and an outer conductor, the outer conductor is formed of a stranded wire, and the predetermined distance between the distal end of the central conductor and the distal end of the outer conductor The theft detection device according to claim 1, wherein the theft detection device is connected via a resistor .

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