JP4053549B2 - Parking vehicle monitoring device - Google Patents

Description

  The present invention relates to a parked vehicle monitoring device for detecting a detection object close to a parked vehicle parked in a parking area.

  Conventionally, various sensors have been invented that detect a detection object close to an automobile by measuring a change in capacitance value. For example, by disposing a capacitive sensor in a vehicle door handle having a hollow shape, an operation in which the user of the vehicle comes close to get into the vehicle interior and the user's hand contacts the door handle is detected. Thereby, user recognition is performed by performing communication between the portable device carried by the user and the vehicle-mounted device with the contact with the door handle as a trigger (see, for example, Patent Document 1). Also, an obstacle close to the automobile is detected by disposing a capacitive sensor at a vehicle insulating part such as a bumper. As a result, when there is a danger of a collision, an alarm is issued to the driver to prevent a collision with an obstacle.

JP-A-10-308149

  Any of the conventional methods detects local proximity to a sensor electrode disposed in a specific part of the vehicle, and cannot detect proximity to the vehicle itself. For this reason, it is unsuitable for the request | requirement which detects the detection target which approaches the vehicle from an unspecified direction and contacts the unspecified part of a vehicle. For example, in order to prevent criminal acts such as car theft and storming on the vehicle, there is a problem that it is impossible to detect an act in which a suspicious person approaches.

  The present invention has been made to solve the above-described problems, and provides a parked vehicle monitoring apparatus capable of detecting a detection object that approaches a vehicle from an unspecified direction and contacts an unspecified part of the vehicle. The purpose is to do.

  In the parking area where the vehicle is parked, the first detection conductor installed in the parking area faces the first detection conductor upper side and the lower side of the parked vehicle, and the first detection A second detection conductor installed at a predetermined distance from the conductive conductor, a measurement means for measuring the capacitance between the first detection conductor and the second detection conductor, and the measurement means And a detection unit that detects a detection object close to the parked vehicle in accordance with a capacitance value.

  The parked vehicle monitoring device according to the present invention opposes the first detection conductor installed in the parking area, the upper side of the first detection conductor, and the lower side of the parked vehicle in the parking area where the vehicle is parked. And a second detection conductor installed at a predetermined distance from the first detection conductor, and a measuring means for measuring the capacitance between the first detection conductor and the second detection conductor; Since the detection means for detecting the detection target close to the parked vehicle according to the capacitance value measured by the measurement means is provided, the detection target close to the parked vehicle can be easily detected.

Embodiment 1 FIG.
Embodiments of the present invention will be described below. 1 is a diagram showing a configuration of a parked vehicle monitoring apparatus according to Embodiment 1 of the present invention, FIG. 2 is a block diagram showing a configuration of a parked vehicle monitoring apparatus according to Embodiment 1 of the present invention, and FIG. FIG. 4 is a circuit diagram showing the detection principle of the parked vehicle monitoring device shown in FIG. 3, and FIGS. 5 and 6 are the parking views shown in FIG. The figure which showed the state before parking of the vehicle in a vehicle monitoring apparatus and the state after parking, FIG. 7 is the figure which showed the detail of the raising / lowering means of the parked vehicle monitoring apparatus shown in FIG. In the figure, in a parking area 2 where a vehicle is parked, a first sensor electrode 4 as a first detection conductor installed in the parking area 2, an upper side of the first sensor electrode 4, and a lower side of the parked vehicle 1 2, a second sensor electrode 3 as a second detection conductor that is opposed to each other and is separated from the first sensor electrode 4 by a predetermined distance, and the first sensor electrode 4 and the second sensor electrode 3, A measuring means 5 for measuring the capacitance between the control means 8 and a control means 8 having a function of a detecting means for detecting the detection object 6 close to the parked vehicle according to the capacitance value measured by the measuring means 5; , A notification means 9 for notifying the outside that the control means 8 has detected the detection object 6 in the proximity of the parked vehicle 1 and an elevating means 7 for changing the ground height of the second sensor electrode 3 are provided.

  The first sensor electrode 4 is composed of a conductor embedded in the parking area 2. Further, the first sensor electrode 4 and the second sensor electrode 3 are formed at a position where the first sensor electrode 4 and the second sensor electrode 3 are disposed opposite to each other immediately below the second sensor electrode 3 as shown in FIG. In order to reduce the area of 4, the first sensor electrode 4 is formed so as to surround the second sensor electrode 4 in plan view. Further, as shown in FIG. 7, the lifting means 7 is formed so as to be buried under the second sensor electrode 3 at the center of the parking area 2, and the vehicle is parked in the parking area 2. If not, the second sensor electrode 3 is lowered onto the upper surface of the parking area 2, and when the vehicle is parked in the parking area 2, it is detected that the second sensor electrode 3 has been parked. It is installed so as to be separated from the first sensor electrode 1 by a predetermined distance.

  Next, the operation of the parked vehicle monitoring apparatus of the first embodiment configured as described above will be described. First, as shown in FIG. 5A, the vehicle 101 enters the parking area 2 from outside the parking area 2 and enters the parking area 2 as shown in FIG. Then, the parked vehicle 1 is parked on the parking area 2 as shown in FIG. In this state, when the detection target 6 is close to the parked vehicle 1, compared to the case where the detection target 6 is not close to the parked vehicle 1, the parked vehicle 1, the second sensor electrode 3, The electric field distribution between the first sensor electrode 4 and the detection object 6 changes. For this reason, as a result, the capacitance changes, and the measuring means 5 for measuring the capacitance between the second sensor electrode 3 and the first sensor electrode 4 has a capacitance due to the proximity of the detection object 6. Changes can be detected. And the control means 8 can detect that the detection target 6 approaches the parked vehicle 1 by this. Next, the control means 8 responds to the notification means 9 in order to notify the outside that there is a detection target 6 that is close to the parked vehicle 1, for example, depending on the degree of risk. An instruction is given to output a warning, alarm, or report to a predetermined contact.

  As a method for measuring the capacitance, for example, a method in which charges stored in a sensor electrode to which a constant voltage is applied is transferred to a charge detector having a known capacitance, or a low-frequency signal is used. However, the method of measuring the capacitance in the present invention is not limited to this, and any method may be used. Needless to say.

Next, the principle of detection in the vicinity of the detection object 6 in the present invention will be described with reference to a schematic diagram schematically illustrating the configuration of the parked vehicle monitoring apparatus in FIG. 1 shown in FIG. FIG. 3 shows an electrical correlation between the conductors when it is assumed that the detection object 6 and the parked vehicle 1 are conductors, and capacitances can be defined between the conductors. Capacitance C _AV 100 between the second sensor electrode 3 and the parked vehicle 1, capacitance C _AO 200 between the second sensor electrode 3 and the detection target 6, the detection target 6 and the parked vehicle 1 between the capacitance C _OV 300 between the first sensor electrode 4 and the capacitance C _AB 400 between the second sensor electrode 3 and the first sensor electrode 4, and between the detection object 6 and the first sensor electrode 4. Capacitance C _OB 500, and capacitance C _VB 600 between the parked vehicle 1 and the first sensor electrode 4. Thus, since the 2nd sensor electrode 3 is comprised so that a part or whole surface of the bottom face of the parked vehicle 1 may be covered, with the proximity | contact of the detection target object 6, mainly the detection target object 6 and a parked vehicle The value of the capacitance C _OV 300 between 1 and 1 changes greatly. Although not shown in FIG. 3, the measuring means 5 is connected to the first sensor electrode 4 and the second sensor electrode 3, and between the first sensor electrode 4 and the second sensor electrode 3. The capacitance C _AB 400 is measured to detect the proximity of the detection target 6.

Furthermore, in order to explain the capacitance measurement by the measuring means 5 in detail, a circuit diagram showing a circuit configuration of the parked vehicle monitoring device in FIG. 4 is used. The capacitance as an actual measurement value measured by the measuring means 5 is C700. The electrostatic capacitance C700 includes an electrostatic capacitance C _AV 100 between the second sensor electrode 3 and the parked vehicle 1, an electrostatic capacitance C _AO 200 between the second sensor electrode 3 and the detection target 6, and detection. The capacitance C _OV 300 between the object 6 and the parked vehicle 1, the capacitance C _AB 400 between the second sensor electrode 3 and the first sensor electrode 4, the detection object 6 and the first The combined capacitance of the capacitance C _OB 500 between the sensor electrode 4 and the capacitance C _VB 600 between the parked vehicle 1 and the first sensor electrode 4, which is expressed by the following formula 1. be able to.

Equation 1 shown above mainly detects a change in the capacitance C _OV 300 between the detection object 6 and the parked vehicle 1 due to a change in the capacitance C700 measured by the measuring means 5. . Therefore, this makes it possible to detect that the detection object 6 is close to the parked vehicle 1. From this, in order to further improve the detection performance, a change in the capacitance C _OV 300 between the detection object 6 and the parked vehicle 1 is detected as a change in the capacitance C 700 measured by the measuring means 6. It needs to be easy. According to Equation 1 shown above, it can be seen that the sensitivity of the capacitance C700 with respect to the change in each capacitance strongly depends on the initial value of each capacitance determined by the relative arrangement of the conductors. Specifically, by increasing the capacitance C _AV 100 between the second sensor electrode 3 and the parked vehicle 1, the capacitance C _VB mainly between the parked vehicle 1 and the detection target 6 is mainly used. The sensitivity of the capacitance C700 with respect to 300 changes can be increased. As a result, the sensitivity of the sensor to the detection target 6 approaching the parked vehicle 1 can be increased.

Here, in order to increase the capacitance C _AV 100 between the second sensor electrode 3 and the parked vehicle 1, the ground height of the second sensor electrode 3 is increased and the distance from the parked vehicle 1 is reduced. Or, it is necessary to widen the area facing the bottom surface of the parked vehicle 1. However, when the ground height of the second sensor electrode 3 is increased or the area facing the bottom surface of the parked vehicle 1 is increased, the second sensor electrode 3 becomes an obstacle during the parking operation of the parked vehicle 1. End up. For this reason, in the present invention, when the ground height of the second sensor electrode 3 is during the parking operation of the parked vehicle 1, the second sensor electrode 3 is moved into the parking area 2 by the lifting means 7 as shown in FIG. It is lowered on the upper surface and is placed low enough not to interfere with the parking operation.

  Further, after the parking operation of the parked vehicle 1 is completed, it is detected that the parked vehicle 1 is parked by the elevating means 7 as shown in FIG. The second center electrode 3 is raised to a predetermined height position up to the vicinity of the parked vehicle 1. In this manner, the ground height of the second sensor electrode 3 can be changed to an appropriate height at an appropriate time. As the elevating means 7, for example, as shown in FIG. 7, it is formed by a pantograph type that elevates and lowers using a pantograph, or a gas pressure type that uses other air cylinders, gas springs, etc., or mainly a hydraulic pump is driven by a motor However, it goes without saying that any other lifting mechanism such as a hydraulic type that lifts and lowers using a hydraulic jack may be used.

As described above, since the elevating means 7 exists immediately below the second sensor electrode 3, the shape and size of the first sensor electrode 4 are restricted. However, the sensitivity of the detection of the proximity of the detection object 6 to the parked vehicle 1 can be increased when the area of the first sensor electrode 4 that is installed to face the second sensor electrode 3 is smaller. it can. This is because, by reducing the component of the capacitance C _AB 400 between the second sensor electrode 3 and the first sensor electrode 4 in the measured capacitance C700, the detection object 6 and the parking object are parked. This is because the change in the capacitance C _OV 300 between the vehicle 1 and the vehicle 1 can be easily detected.

In addition, the distance between the second sensor electrode 3 and the parked vehicle 1 that is lifted and lowered by the lifting means 7 is measured because the capacitance C _AV 100 between the second sensor electrode 3 and the parked vehicle 1 changes. The means 6 can detect the change in the capacitance C _AV 100 as a change in the capacitance C700 and can detect the interval between the second sensor electrode 3 and the parked vehicle 1. For this reason, the lifting / lowering means 7 can finely adjust the distance between the second sensor electrode 3 and the parked vehicle 1 based on the measurement value of the measuring means 6.

  According to the parked vehicle monitoring apparatus of the first embodiment configured as described above, the detection target object approaches the unspecified part of the parked vehicle using only the parked vehicle monitoring apparatus provided in the parking area (this It can be detected that the proximity mentioned in the invention includes contact. In addition, by judging the detection object as an action that may develop into vehicle theft in the vicinity of the parked vehicle, on-board storming, etc., by performing a warning, warning, and notification to the predetermined contact location for the detection object, Crime acts such as car theft and car storming can be prevented. Moreover, since the ground height of the second sensor electrode is changed by the elevating means, the detection sensitivity can be optimized when parking, and the obstacles to travel can be eliminated when entering and leaving the parking lot. Moreover, since the measurement is performed without bringing the second sensor electrode into contact with the vehicle, it is possible to prevent damage and failure of the parked vehicle that is considered to be caused by the second sensor electrode coming into contact with the parked vehicle. In addition, since the first sensor electrode is embedded in the parking area, it is difficult not only to maintain the beauty of the parking area but also to easily grasp the detection area, thereby improving the security level. it can.

  In the first embodiment, an example in which the first detection conductor is embedded in the parking area has been described. However, the present invention is not limited to this, and the first detection conductor is laid on the surface of the parking area. Even if it is formed of any one of the conductive paint bodies painted on the surface of the parking area, the same effects as those of the first embodiment can be obtained in detecting the detection object. Moreover, since it forms on a parking area | region, it becomes possible to form easily. In addition, it can be easily installed in a parking lot after construction, or the area of the first detection conductor can be easily corrected later.

Embodiment 2. FIG.
In the first embodiment, the second detection conductor is installed away from the bottom of the parked vehicle. However, the present invention is not limited to this, and a predetermined ground height of the second detection conductor is parked. The height of the vehicle body bottom of the vehicle 1 may be set such that the second detection conductor and the vehicle body bottom of the parked vehicle 1 are brought into contact with each other to detect the detection target 6. In this case, since the bottom of the vehicle body is a conductor, it functions as a part of the second detection conductor, and the capacitance is measured. FIG. 8 is a schematic diagram schematically showing the configuration of the parked vehicle monitoring apparatus according to Embodiment 2 of the present invention, and FIG. 9 is a circuit diagram showing the detection principle of the parked vehicle monitoring apparatus shown in FIG.

  In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. Further, since the parts such as the control means, the raising / lowering means, the notification means, and the measurement means not shown in the figure are the same as those in the first embodiment, the illustration is omitted. The second sensor electrode 30 serving as a second detection conductor is disposed opposite to the first sensor electrode 4 and on the lower side of the parked vehicle 1 and spaced from the first sensor electrode 4 by a predetermined distance. Further, by a lifting means (not shown) similar to that of the first embodiment, the predetermined ground height is set as the vehicle body bottom height of the parked vehicle 1, and the second sensor electrode 30 and the vehicle body bottom of the parked vehicle 1 are matched. It is something to touch.

  Next, since the operation of the parked vehicle monitoring apparatus of the second embodiment configured as described above is the same as that of the first embodiment, only the principle of detection will be described. However, the second sensor electrode 30 is in contact with the bottom of the vehicle body of the parked vehicle 1, and the parked vehicle 1 is a part having a part of the function of the second sensor electrode 30. Here, the principle of detection in the vicinity of the detection object 6 in the present invention will be described using a schematic diagram schematically illustrating the configuration of the parked vehicle monitoring apparatus in the second embodiment of the present invention shown in FIG. FIG. 8 shows an electrical correlation between the conductors when it is assumed that the detection object 6 and the parked vehicle 1 are conductors, and capacitances can be defined between the conductors.

Capacitance C _AO 200 between the second sensor electrode 30 (parked vehicle 1) and the detection object 6, and static between the second sensor electrode 30 (parked vehicle 1) and the first sensor electrode 4 It is represented by a capacitance C _AB 400 and a capacitance C _OB 500 between the detection object 6 and the first sensor electrode 4. Since the second sensor electrode 30 is thus installed on the bottom surface of the parked vehicle 1, the second sensor electrode 30 (parked vehicle 1) and the detection target are mainly associated with the proximity of the detection target 6. The value of the capacitance C _AO 200 between 6 greatly changes. Although not shown, the measuring means is connected to the first sensor electrode 4 and the second sensor electrode 30, and the capacitance C between the first sensor electrode 4 and the second sensor electrode 30. By measuring _AB 400, the proximity of the detection object 6 is detected.

Furthermore, in order to explain the capacitance measurement by the measuring means in detail, a circuit diagram showing a circuit configuration of the parked vehicle monitoring device in FIG. 9 is used. The capacitance as an actual measurement value measured by the measuring means is C700. The electrostatic capacitance C700 includes the electrostatic capacitance C _AO 200 between the second sensor electrode 30 (parked vehicle 1) and the detection target 6, the second sensor electrode 30 (parked vehicle 1), and the first sensor electrode. 4 is a combined capacitance of the capacitance C _AB 400 between the detection target 6 and the capacitance C _OB 500 between the detection object 6 and the first sensor electrode 4, and is expressed by the following formula 2. Can do.

Equation 2 shown above is based on the capacitance C _AO 200 mainly between the second sensor electrode 30 (parked vehicle 1) and the detection object 6 due to the change in the capacitance C700 measured by the measuring means. Change will be detected. Therefore, this makes it possible to detect that the detection object 6 is close to the parked vehicle 1. The contact of the second sensor electrode 30 to the bottom of the vehicle body with respect to the parked vehicle 1 (the distance between the second sensor electrode 30 and the bottom of the vehicle body of the parked vehicle 1) is measured in the same manner as in the first embodiment. The lifting means can be adjusted based on the measured value of the means.

  According to the parked vehicle monitoring apparatus of the second embodiment configured as described above, the entire parked vehicle is used as a part of the second sensor electrode as well as the same effect as in the first embodiment. Since the second sensor electrode can be made to function, it is not necessary to make the second sensor electrode large in order to improve the sensitivity of detection of the detection object. When parking a car, it becomes possible to park without hindrance. However, since the second sensor electrode is brought into contact with the parked vehicle, it is necessary to appropriately set the shape and material of the second sensor electrode in order to prevent the parked vehicle from being damaged or broken.

Embodiment 3 FIG.
FIG. 10 is a block diagram showing the configuration of the parked vehicle monitoring apparatus according to Embodiment 3 of the present invention. The parked vehicle 1 and the detection target 6 that are not shown in FIG. 10 have the same relationship as in FIG. 1 and will be described with reference to FIG. In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. It comprises a mobile device 10 carried by the user of the parked vehicle, and a parked vehicle monitoring device 15 having a configuration in which a transmission / reception circuit for performing communication between the mobile device 10 and the control means 80 is added. The portable device 10 includes a transmission circuit 11 and a transmission antenna 11a as transmission means for transmitting information of the portable device 10, and reception for receiving information from other devices (including the parked vehicle monitoring device 15). A receiving circuit 12 and a receiving antenna 12a as means, a control unit 13 for controlling such information, and an operation switch 14 for manual operation are provided.

  A control unit 13 and a receiving antenna 12a are connected to the receiving circuit 12, and a signal obtained by demodulating the received radio wave is input to the control unit 13. A control unit 13 and a transmission antenna 11a are connected to the transmission circuit 11, respectively, and an output signal output from the control unit 13 is modulated into a radio wave of a predetermined frequency and radiated to the outside through the transmission antenna 11a. The control unit 13 is a CPU unit that includes a CPU, a ROM, a RAM, and the like (not shown), and includes a storage unit 13a configured by, for example, a nonvolatile memory for recording information. A predetermined ID code set in advance for indicating that the user is the user of the parked vehicle 1 is recorded in the storage unit 13a. When receiving the request signal by the receiving antenna 12a, the control unit 13 automatically outputs a predetermined ID code signal including at least the ID code to the transmission circuit 11. The operation switch 14 is configured by a push button switch or the like of the portable device 10, and the control unit 13 outputs a manual operation signal to the transmission circuit 11 when the operation switch 14 is operated. The transmission circuit 11 to which the manual operation signal is output transmits a predetermined ID code signal including the ID code via the transmission antenna 11a.

  As in the first embodiment, the parked vehicle monitoring device 15 monitors the parked vehicle on the second sensor electrode 3, the first sensor electrode 4, the measurement unit 5, the lifting unit 7, the control unit 80, and the notification unit 9. A transmission circuit 16 and a transmission antenna 16a for transmitting information of the device 15 and a reception circuit 17 and a reception antenna 17a as reception means for receiving signals from other devices (including the portable device 10) are added. The The transmission circuit 16 modulates the request signal generated by the control means 80 into a radio wave having a predetermined frequency, and the radio wave modulated by the transmission circuit 16 is radiated to the surrounding area of the parked vehicle 1 via the transmission antenna 16a.

  The control means 80 has the same function as that of each of the embodiments described above, and additionally has an authentication means function for authenticating that it is a user of the parked vehicle 1 and has been authenticated by the authentication means. The user is excluded from the detection target. Specifically, when it is determined that the detection object 6 that is close to the parked vehicle 1 is present using the measurement unit 5, a request signal is generated and output to the transmission circuit 16. A reception antenna 17 a is connected to the reception circuit 17. The receiving circuit 17 receives the ID code signal transmitted from the portable device 10 via the receiving antenna 17a. The receiving circuit 17 demodulates the ID code signal into a pulse signal and outputs the signal to the control unit 80. Specifically, the control unit 80 includes a CPU unit including a CPU, a ROM, and a RAM (not shown), and includes a storage unit 80a including a nonvolatile memory. A predetermined ID code set in advance is recorded in the storage unit 80a.

  Therefore, when the ID code included in the ID code signal received from the portable device 10 matches the ID code stored in the storage unit 80a in advance, the control means 80 will make the portable device 10 properly correspond to the parked vehicle 1. It authenticates that it is the user of the registered portable device 10, ie, a parked vehicle, and excludes it from the detection target object 6. If the detection object 6 that is close to the parked vehicle 1 is a person who does not have the proper portable device 10, the control means 80 detects that the detection object 6 has been detected and notifies the notification means 9 of a predetermined notification signal. And the notification means 9 performs a predetermined alarm / report operation. On the other hand, when the detection target 6 that is in close proximity to the parked vehicle 1 is a regular portable device 10, the portable device 10 that has received the request signal transmitted by the transmission antenna 16a is a predetermined ID code as described above. Since the signal is automatically transmitted, the control unit 80 can recognize that the detection target 6 that is close to the parked vehicle 1 is the user of the parked vehicle 1.

  When recognizing that the person in the vicinity of the parked vehicle 1 is the user of the parked vehicle 1, the control means 80 indicates the ground height of the second sensor electrode 3 to the lift means 7. Outputs an instruction signal to lower the parking lot to below the extent that it can leave the parking lot. In this way, the user of the parked vehicle 1 who owns the legitimate portable device 10 can lower the ground height of the second sensor electrode 3 without actually bothering his / her hand. You can leave the parking area. Further, the ground code height of the second sensor electrode 3 can be lowered because the ID code signal is also transmitted by manually operating the operation switch 14 of the portable device 10.

  According to the parked vehicle monitoring apparatus of the third embodiment configured as described above, the use of the parked vehicle from the detection object is provided by providing a function of an authentication unit for authenticating that the user is a parked vehicle user. The person can be removed and appropriate detection can be performed. Furthermore, by recognizing the user of the parked vehicle, the ground height of the second detection conductor can be lowered without bothering the user, so that convenience can be improved. In addition, the second sensor electrode raised by the elevating means when the vehicle is parked has an effect of hindering the traveling of the vehicle, so that the user of the parked vehicle can leave the parked vehicle from a predetermined parking area without permission. Can be prevented. In particular, it can be applied to a parking lot owned by the user of the parked vehicle or a contracted parking lot.

Embodiment 4 FIG.
FIG. 11 is a block diagram showing a configuration of a parked vehicle monitoring apparatus according to Embodiment 4 of the present invention. The parked vehicle 1 and the detection target 6 that are not shown in FIG. 10 have the same relationship as in FIG. 1 and will be described with reference to FIG. The parked vehicle monitoring apparatus according to the present invention is used at a location where a charge (or an equivalent to the charge) is collected from the user. In the figure, the same parts as those in the third embodiment are denoted by the same reference numerals, and the description thereof is omitted. The parked vehicle monitoring device 15 includes a fee collection means 18 for collecting a parking lot usage fee. The user of the parked vehicle 1 pays a predetermined fee to the fee collection means 18. The control means 81 has the same function as that in each of the above embodiments, and in addition, a function of a judgment means for judging whether or not the user is right to leave the parked vehicle 1 from the parking area 2. The second sensor electrode 3 is instructed to descend when the judgment means judges that it is valid.

  Specifically, when the user of the parked vehicle 1 pays the fee collection means 18, this is transmitted to the control means 81. Next, the control means 81 determines that it is justified to leave the parked vehicle 1 from the parking area 2. Next, the control means 81 instructs the elevating means 7 to lower the second sensor electrode 3 in combination with the determination that the user is a valid user of the authentication means and this determination. The user can leave the parked vehicle from the parking area without being detected as the detection object 6. In addition, if the control means 81 obtains authentication that it is a valid user of the authentication means when trying to leave without paying a fee, it is not valid to leave the parked vehicle 1 from the parking area 2. Then, the second sensor electrode 3 is kept raised so that the delivery cannot be performed. Furthermore, in such a case, even a legitimate user may be detected as the detection object 6, and the control unit 81 may notify the outside as an alarm using the notification unit 9.

  According to the parked vehicle monitoring apparatus of the fourth embodiment configured as described above, in the parking lot that collects charges such as time lending, the second sensor is used unless the user pays a predetermined charge through the charge collecting means. Since the electrode remains raised and the parked vehicle is parked and locked, even a legitimate user cannot leave the parked vehicle from the parking area. In addition, as a method for the user to pay a predetermined fee through the fee collection means, a fee is directly charged into the fee collection means, or through a radio wave transmitter / receiver in the parked vehicle monitoring device and the portable device. It may be possible to make a payment. In addition, although an example in which the fee collection means is installed as part of the parked vehicle monitoring device is shown here, the present invention is not limited to this, and the fee collection means is installed in another location and the fee is collected. Needless to say, this can be done in the same manner as long as it can be transmitted to the control means.

  This is particularly effective in unmanned and manned time-rental parking lots, and in particular in unmanned time-rented parking lots, in addition to the security function of detecting detection objects as described above, It is also considered to be very effective as a parking lock that prevents a user of a parked vehicle from leaving the parking lot without paying a predetermined parking lot usage fee without the parking lot manager.

  In the fourth embodiment, means for determining whether or not the user is a legitimate user is provided, and it is a legitimate user and paying a fee is a condition for leaving, but the present invention is not limited to this. Judgment is made only on whether to collect the fee, and if the fee is not collected, it is judged that it is not valid to issue, and if the fee is collected, it is judged that it is valid to issue the fee. Also good. In this way, as compared with the fourth embodiment, the portable device and the function of transmission / reception with the portable device and the determination thereof are unnecessary, and therefore, it is possible to implement with a simple device.

It is a figure which shows the structure of the parked vehicle monitoring apparatus of Embodiment 1 of this invention. It is the block diagram which showed the structure of the parked vehicle monitoring apparatus in Embodiment 1 of this invention. It is the schematic diagram which showed typically the structure of the parked vehicle monitoring apparatus shown in FIG. It is a circuit diagram which shows the detection principle of the parked vehicle monitoring apparatus shown in FIG. It is the figure which showed the state before parking of the vehicle in the parked vehicle monitoring apparatus shown in FIG. It is the figure which showed the state after parking of the vehicle in the parked vehicle monitoring apparatus shown in FIG. It is the figure which showed the detail of the raising / lowering means of the parked vehicle monitoring apparatus shown in FIG. It is the schematic diagram which showed typically the structure of the parked vehicle monitoring apparatus of Embodiment 2 of this invention. It is a circuit diagram which shows the detection principle of the parked vehicle monitoring apparatus shown in FIG. It is a block diagram which shows the structure of the parked vehicle monitoring apparatus of Embodiment 3 of this invention. It is a block diagram which shows the structure of the parked vehicle monitoring apparatus of Embodiment 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Parking vehicle, 2 Parking area | region, 3,30 2nd sensor electrode, 4 1st sensor electrode,
5 Measuring means, 6 Object to be detected, 7 Lifting means, 8, 80, 81 Control means,
9 Notification means.

Claims (8)

In the parking area where the vehicle is parked, the first detection conductor installed in the parking area faces the upper side of the first detection conductor and the lower side of the parked vehicle, and the first detection. A second sensing conductor installed at a predetermined distance from the working conductor, a measuring means for measuring a capacitance between the first sensing conductor and the second sensing conductor, and the measuring means A parking vehicle monitoring apparatus comprising: a detection unit that detects a detection object close to the parked vehicle in accordance with a capacitance value measured by the vehicle. Elevating means for changing the ground height of the second detection conductor is provided, and the elevating means places the second detection conductor on the upper surface of the parking area when the vehicle is not parked in the parking area. When the vehicle is parked in the parking area, it is detected that the vehicle is parked, and the second detection conductor is raised to a predetermined ground height, and the first detection conductor The parked vehicle monitoring apparatus according to claim 1, wherein the parked vehicle monitoring apparatus is installed so as to be separated by a predetermined distance. 3. The parked vehicle monitoring apparatus according to claim 2, wherein the predetermined ground height is set as a vehicle body bottom height of the parked vehicle, and the second detection conductor and the vehicle body bottom of the parked vehicle are in contact with each other. A judgment means is provided for judging whether or not the user is legitimate for taking out the parked vehicle from the parking area, and the judgment means confirms that the user is legitimate when the user confirms that the user is legitimate. The parked vehicle monitoring apparatus according to claim 2 or 3, wherein the instruction for lowering the two detection conductors is given. The first detection conductor is configured by a conductor laid on the surface of the parking area or a conductive paint body painted on the surface of the parking area. The parked vehicle monitoring apparatus according to claim 4 . The parked vehicle monitoring device according to any one of claims 1 to 4 , wherein the first detection conductor is composed of a conductor embedded in the parking area. The parked vehicle monitoring apparatus according to any one of claims 1 to 6 , further comprising a notification unit that notifies the outside that the detection unit has detected a detection target that is close to the parked vehicle. The authentication means for authenticating that it is the user of the said parked vehicle is provided, The said detection means removes the user authenticated by the said authentication means from a detection target object. The parked vehicle monitoring apparatus according to claim 7 .

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