JPH0684092A - Detection device for parked vehicle - Google Patents

Abstract

PURPOSE:To provide a device for detecting a parked vehicle capable of accurately detecting the parked position of a vehicle with low power consumption. CONSTITUTION:The position of the vehicle is detected by signals from an antenna 1a for GPS at all times and when a driver pulls out a key 2 for the vehicle from the key cylinder of the vehicle, a detected vehicle position is recorded at a data processing part 1b as the parked position. When the driver moves while carrying this detection device in the case of parking the vehicle and going away, the present position is detected through the GPS at all times, the positional relation of the present position and the parked position is calculated at the data processing part 1b and is displayed at a display part 1c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parked vehicle detection device for detecting a specific vehicle from a large number of parked vehicles in a large parking lot or the like.

[0002]

2. Description of the Related Art As a detection device for this type of parked vehicle,
In some cases, the receiving device is installed in the parked vehicle, and the driver carries the wireless communication device and moves away from the vehicle. Then, when the driver searches for the parked vehicle, the wireless communication device is used to transmit a signal to the receiving device of the parked vehicle. The receiving device of the parked vehicle receives this signal, and thereby automatically turns on or blinks the light of the vehicle, sounds the horn, expands or contracts the antenna, and the like to inform the driver of the position of the parked vehicle. Let me know.

[0003]

In the above-described conventional parked vehicle detection device, when the driver is far away from the parked vehicle, the light in the parked vehicle is turned on or blinks.
There is a problem that it is difficult to check the sound of the horn or the expansion / contraction of the antenna, and if there is an obstacle such as a building, the radio wave does not reach and the parked vehicle cannot be detected.

Further, the conventional receiving device for a parked vehicle needs to be always on even when parked, which constantly consumes electric power and is uneconomical. Further, in order to increase the usable range, the output of the wireless communication device must be increased, which requires a wireless communication device and a receiving device with large power, which is uneconomical.

The present invention has been made in view of the above,
It is an object of the present invention to provide a detection device for a parked vehicle that can accurately detect a parking position of the vehicle with low power consumption.

[0006]

In order to achieve the above object, a parking vehicle detecting apparatus of the present invention is a parking vehicle detecting apparatus for detecting a specific vehicle from a large number of parked vehicles. Means for detecting and recording the position of the parked vehicle when the vehicle is parked and leaving the vehicle, and an arbitrary carrying position carried away from the parked vehicle and separated from the parked vehicle Position detection means, positional relationship calculation means for calculating the positional relationship between the position of the parked vehicle recorded in the recording means and the portable position detected by the position detection means, and a display for displaying the calculated positional relationship. The gist is to have means.

[0007]

In the parked vehicle detection device of the present invention, the position of the parked vehicle is detected and recorded when the vehicle is parked and left, and any portable position where the vehicle is carried and moved when the vehicle is separated from the parked vehicle is detected. , The positional relationship between the position of the parked vehicle and the carrying position is calculated and displayed.

[0008]

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

FIG. 1 is a perspective view showing a configuration of a detection position of a parked vehicle according to an embodiment of the present invention. The detection device for a parked vehicle shown in the same figure uses a GPS system to detect the position of the parked vehicle and the mobile position of the detection device, and calculates and displays the positional relationship between the two.
And the transmission cable 3 that connects the main body device 1 and the vehicle key 2 to each other. The present detection device allows the driver to pull out the vehicle key 2 from the vehicle when the vehicle is parked. When the main body device 1 connected to the vehicle key 2 via the transmission cable 3 is carried with the vehicle key 2 and moved away from the vehicle, the parking position of the vehicle is detected from an arbitrary position away from the vehicle. Is something that can be done.

The main unit 1 is arranged so as to be able to receive a signal from the GPS system in order to detect the parking position where the vehicle is parked and the carrying position where the driver carries the detection device. GPS antenna 1a, G
The information of the parking position and the portable movement position received by the PS antenna 1a is input, and the positional relationship between the both calculated by the data processing unit 1b and the data processing unit 1b is displayed. It is composed of a display unit 1c and an azimuth meter 1d for detecting the azimuth used for calculating the positional relationship in the data processing unit 1b. The vehicle key 2 is a switch for detecting whether or not the vehicle key 2 is inserted in a vehicle key cylinder, and more specifically, for detecting when the vehicle key 2 is removed from the vehicle key cylinder. 2a and a transmission cable 2b for transmitting a detection signal from the switch 2a to the main body device 1.

The operation of the detection device for a parked vehicle constructed as described above will be described below with reference to the flow chart shown in FIG.

The GPS antenna 1a of the main unit 1 constantly receives a GPS signal from the GPS system and supplies the signal to the data processing section 1b to constantly detect the current position of the vehicle (step 110). Further, the data processing unit 1b stores the detected current position data of the vehicle in a memory (not shown) in the data processing unit 1b (step 120).

When the driver parks the vehicle and pulls out the vehicle key 2 from the key cylinder of the vehicle, the pulling out is detected by the switch 2a (step 13).
0), the detection signal of the switch 2a is transmitted to the data processing unit 1b of the main body device 1 via the transmission cable 3. In response to this detection signal, the data processing unit 1b stores the current position data in the memory as parking position data, and the vehicle key 2 is pulled out from the vehicle in this way, and the driver is connected by the transmission cable 3. Main unit 1
When the present detection apparatus including the vehicle key 2 and the vehicle 2 is carried away from the vehicle, the data processing unit 1b of the main body apparatus 1 causes G
A signal from the PS antenna 1a is received, and based on this signal, the current position of the driver moving, that is, the current position of the detection device while it is being carried, is constantly detected, and the azimuth at the moving position is detected from the azimuth meter 1d. The detection data is received (step 140).

The data processing unit 1b also reads the parking position data from the memory (step 150), compares the parking position data with the current position, calculates the distance between the two positions, and calculates the distance between the two positions. The direction when the parking position is seen from the current position is calculated based on the absolute azimuth obtained from 1d (step 160).

The distance between the two positions thus calculated and the azimuth when the parking position is seen from the portable position are displayed on the display unit 1c.
(Step 170).

By seeing this display, the driver
It is possible to know at what distance in which direction the parked vehicle is located, and if the vehicle is approached according to this display (step 180), the parked vehicle can be easily found. When the vehicle is found, the user gets on the vehicle and inserts the vehicle key 2 into the key cylinder of the vehicle, so that the detection apparatus first returns to step 110 (steps 190 and 200).

FIG. 3 is a diagram showing a detection device for a parked vehicle according to another embodiment of the present invention. The detection device for a parked vehicle shown in FIG. 1 does not require the GPS function used to detect the parking position of the vehicle in the detection device for a parked vehicle shown in FIG. 1, and is mounted on the vehicle instead. The navigation system is used to detect the parking position of the vehicle, and since the GPS function for detecting the parking position is unnecessary, the vehicle key and the main body device are integrally configured. Only the points are different from the embodiment shown in FIG. 1, and other constructional effects are the same as the embodiment shown in FIG.

That is, as shown in FIG. 3 (a), the vehicle key 21 is integrally provided with a main body device 23 corresponding to the main body device 1 of FIG. 1 and a display portion 25. When the vehicle key 21 is pulled out from the ignition key cylinder of the vehicle, the vehicle navigation system 30
The vehicle parking position data is supplied to the main body device 23 of the vehicle key 21 and recorded.

In this way, the parking position of the vehicle is recorded in the main body device 23 integrally incorporated in the vehicle key 21, and after the driver carries the vehicle key 21 and moves away from the vehicle, , GPS as shown in FIG.
The main body device 23 receives a signal from the system, thereby detecting the current position as in the embodiment of FIG. 1, comparing the detected current position with the parking position, and measuring the distance between the two positions and the current position. The direction when the parking position is viewed from the position is calculated and displayed on the display unit 25.

FIG. 4 is a diagram showing a detection device for a parked vehicle according to another embodiment of the present invention. The detection device for a parked vehicle shown in FIG. 1 includes a vehicle key 41 or an IC memory card 4
3, the parking position data is received and recorded from the vehicle-mounted navigation system 40, and the driver holds the electronic keypad 50 with GPS function in addition to the vehicle key 41 or the IC memory card 43, and Move away. Then, when searching for a parked vehicle, the vehicle key 41 or I in which the parking position data is recorded is recorded.
The C memory card 43 is inserted into the electronic notebook 50 with GPS function, and the parking position data is stored in the electronic notebook 5 with GPS function.
Read to 0.

The electronic notebook 50 with the GPS function calculates the current position by the GPS function, and at the same time, the vehicle key 41.
Alternatively, the parking position data read from the IC memory card 43 and the current position data are compared to determine the positional relationship between the two.
That is, the direction in which the parking position is viewed is calculated from the distance between the two positions and the current position, and displayed on the display unit 51 of the electronic notebook 50 with GPS function.

[0022]

As described above, according to the present invention,
When the vehicle is parked and left, the position of the parked vehicle is detected and recorded, and when moving away from the parked vehicle, an arbitrary mobile position where the vehicle is moved is detected, and the positional relationship between the position of the parked vehicle and the mobile position is determined. Since it is calculated and displayed, the position of the parked vehicle can be easily detected even when the parked vehicle is not in the field of view, and power consumption is not required during parking, so that the battery does not rise. It is economical.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a detection device for a parked vehicle according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the detection device for a parked vehicle shown in FIG.

FIG. 3 is a diagram showing a detection device for a parked vehicle according to another embodiment of the present invention.

FIG. 4 is a diagram showing a detection device for a parked vehicle according to another embodiment of the present invention.

[Explanation of Codes] 1 Main unit 1a GPS antenna 1b Data processing unit 1c Display unit 1d Compass

Claims (1)

[Claims] 1. A parked vehicle detection device for detecting a specific vehicle from a large number of parked vehicles, wherein the position of the parked vehicle is detected when the specific vehicle is parked and is separated from the vehicle. Recording means for recording, position detecting means that is carried when leaving the parked vehicle and detects an arbitrary carrying position away from the parked vehicle, position of the parked vehicle recorded in the recording means, and the position detecting means 2. A detection device for a parked vehicle, comprising: a positional relationship calculating means for calculating a positional relationship with the carrying position detected in step 1; and a display means for displaying the calculated positional relationship.