JP2003137072A - Transport detecting system of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transport detecting system of a vehicle capable of detecting conveyance and transport related to a theft of a vehicle without operation by a user or an operator. SOLUTION: A construction equipment vehicle 10 such as a hydraulic shovel operated by an engine comprises a first detector 11 for detecting existence of operation of the engine and a second detector 12 for detecting existence of the movement of the construction equipment vehicle 10. The vehicle has a discriminating means 17 for discriminating that the construction equipment vehicle 10 is loaded on a trailer and transported by detecting engine stop with the first detector 11 and detecting movement of the construction equipment vehicle 10 with the second detector 12. When the second detector 12 detects the movement of the vehicle though the first detector 11 detects the engine stop, the discriminating means 17 automatically discriminates that the vehicle is loaded on the trailer and transported, and prevents the theft.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle transfer detection system for detecting vehicle transportation transfer.

[0002]

2. Description of the Related Art Conventionally, in order to know that a construction machine vehicle such as a hydraulic excavator has been stolen, (1) a work site monitor directly visually confirms that the construction machine vehicle has been taken away. Or, (2) the operator switches the operation / parking mode on the vehicle side, and the global positioning
A system (so-called GPS) can detect it, or (3) always (periodically) search for location information of the construction machine vehicle, and use a GPS to detect a deviation from the operating area initially set by the user or the like.
There is a method to detect with.

[0003]

In the prior art (1), it is necessary to always arrange a surveillance person on the site, and if it is not arranged, the discovery of theft may be delayed.

The prior art (2) may not be implemented because mode switching by the operator is required each time the vehicle is operated / parked. If the mode is not switched, an erroneous signal is transmitted, and if the mode is easily switched, it may be canceled when the vehicle is stolen, and the transfer of the construction machine vehicle may not be detected. Further, frequent position information detection is required.

In the prior art (3), the user or the like needs to input the initial setting of the operating area, and it is necessary to detect the position information frequently.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a transfer detection system for a vehicle, which can detect a transfer that would lead to theft of the vehicle without any operation by a user, an operator, or the like. It is what

[0007]

According to a first aspect of the present invention, there is provided a first detector for detecting the presence / absence of engine operation of a vehicle operated by an engine, and a second detector for detecting the presence / absence of movement of the vehicle. A vehicle equipped with a detector and a determination means for determining that the vehicle is transported by transportation by detecting engine stoppage by the first detector and detecting movement of the vehicle by the second detector. Transfer detection system, first
When the movement of the vehicle is detected by the second detector despite the engine stop being detected by the second detector, the determining means automatically determines that the vehicle is transported and transferred. Therefore, it is possible to detect the transportation and transportation that would lead to the theft of the vehicle without requiring any special operation by the user or the operator, and moreover, since the operation is exactly the same as that of the vehicle not equipped with this system, high security can be obtained. .

According to a second aspect of the present invention, when the discriminating means in the vehicle transfer detection system according to the first aspect detects the movement of the engine-stopped vehicle a plurality of times within a fixed time, the vehicle is detected. A first detector, which is a transport detection system for a vehicle that determines that the vehicle is transported by transportation, and determines the transportation of the vehicle by detecting the movement of the vehicle with the engine stopped a plurality of times within a certain period of time. And the second
The probability of misjudgment based on the erroneous detection of the detector can be reduced, and the transportation and transportation that may lead to the theft of the vehicle can be reliably detected.

According to a third aspect of the present invention, the first detector in the vehicle movement detection system according to the first or second aspect is an engine lubrication oil pressure sensor for detecting engine lubrication oil pressure. The detection system is a detection system that detects an engine lubrication oil pressure drop using an existing engine lubrication oil pressure sensor, so that an engine stop can be reliably detected at low cost.

According to a fourth aspect of the present invention, the second detector in the vehicle transfer detection system according to the first or second aspect is a vibration / accelerometer for detecting at least one of vibration and acceleration of the vehicle. The vehicle movement detection system described above can detect movement of the vehicle inexpensively and reliably by detecting the vibration and acceleration of the vehicle using the existing vibration / accelerometer.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail with reference to the embodiment shown in FIGS.

FIG. 1 shows an outline of a vehicle transfer detection system. A construction machine vehicle 10 includes a first detector 11 for detecting whether or not the engine of the construction machine vehicle 10 such as a hydraulic excavator operated by an engine is operating. And a second detector 12 for detecting whether or not the construction machine vehicle 10 has moved.

The first detector 11 is, for example, an engine lubrication oil pressure sensor for detecting engine lubrication oil pressure. By using this existing engine lubrication oil pressure sensor to detect a decrease in engine lubrication oil pressure, engine stop can be performed. It can be detected inexpensively and reliably.

The second detector 12 is, for example, a construction machine vehicle 10.
Vibration that detects at least one of the vibration and acceleration of
Accelerometer, using this existing vibration / accelerometer,
By detecting the vibration or acceleration of the construction machine vehicle 10,
The movement of the construction machine vehicle 10 can be detected inexpensively and reliably.

An inclinometer for detecting the inclination of the construction machine vehicle 10 can also be used as the second detector 12 for detecting the movement of the vehicle.

The first detector 11 and the second detector 12 are connected to a controller 13 such as a machine body controller of a construction machine, and a transceiver 14 is connected to the controller 13.

The transmission / reception device 14 exchanges information with a management center 16 which manages the position information of the construction machine vehicle 10 via a communication means 15 such as a mobile telephone network.

The management center 16 is provided with a computer for storing, calculating, and analyzing information. The computer of this management center 16 detects the engine stop by the first detector 11 and the second detection. Construction equipment vehicle 10 by container 12
The determination means 17 determines that the construction machine vehicle 10 is loaded and transported on a transportation vehicle such as a trailer by detecting the movement of the vehicle.

The discriminating means 17 is set so as to discriminate that the construction machine vehicle 10 is being transported by transportation when the movement of the construction machine vehicle 10 with the engine stopped is detected a plurality of times within a certain period of time. Has been done.

The management center 16 includes an operator 18 such as a rental company that owns and operates the construction machine vehicle 10, and the operator 18
It is connected to a user 19 such as a construction company (end user) who rents and uses the construction machine vehicle 10 lent from the company through a wired network.

Further, a position information transmitting device 20 is installed in a place invisible to the construction machine vehicle 10. The position information transmitting device 20 transmits GPS reception information obtained from several global positioning system (hereinafter referred to as "GPS") satellites to the management center 16 or a network such as a mobile phone base station. It has a function of transmitting the position information of the construction machine vehicle 10 obtained through the above to the management center 16.

Next, the principle of this vehicle transfer detection system will be described.

(1) When transporting the construction machine vehicle 10, it is loaded on a transport vehicle such as a trailer and transported.

(2) The engine of the construction machine vehicle 10 is stopped during transportation and transfer.

(3) From the construction machine vehicle 10 during transportation and transfer,
Vibration or acceleration is detected.

(4) When vibration or acceleration is detected from the construction machine vehicle 10 with the engine stopped, it can be considered that the construction machine vehicle 10 is being loaded and transported on a transport vehicle such as a trailer.

Focusing on these points, engine stop is
The first detector 11 (decrease in engine lubrication oil pressure) detects the vibration or acceleration of the construction machine vehicle 10,
It is detected by the detector 12 (vibration / accelerometer, inclinometer, etc.).

Next, a specific example of the transfer detection of the construction machine vehicle 10 will be described with reference to the flowchart shown in FIG.

(Step 1) When the operator 18 rents out the construction machine vehicle 10 to the user 19, the vehicle monitoring system starts by unloading the construction machine vehicle 10 on the basis of an order for rental negotiations, and first starts the monitoring thereof. Set and enter the time.

(Step 2) Monitoring of transportation of the construction machine vehicle 10 is started.

(Step 3) The first detector 11 directly detects the decrease in the engine lubricating oil pressure to indirectly detect the engine stop of the construction machine vehicle 10, and the second detector 12 detects it. The movement of the construction machine vehicle 10 is indirectly detected by directly detecting the vibration of the construction machine vehicle 10. The detection of the decrease in the engine lubricating oil pressure and the detection of the vibration mean that the vehicle is transported by transportation, and this is the first transportation and transportation detection.

(Step 4) The discriminating means 17 sets a timer from the first transportation / transportation detection and starts time measurement.

(Step 5) The first detector 11 directly detects a decrease in engine lubricating oil pressure to indirectly detect the engine stop of the construction machine vehicle 10, and the second detector 12 detects By directly detecting the vibration of the construction machine vehicle 10, the movement of the construction machine vehicle 10 is indirectly detected. The detection of the decrease in the engine lubrication oil pressure and the detection of the vibration are referred to as the second transportation and transport detection.

(Step 6) The discriminating means 17 measures the time from the first transportation / transportation detection to the second transportation / transportation detection, and judges whether or not the time is within 5 minutes, for example. If it exceeds the minute (NO), repeat Step 2
Repeat step 6 above.

(Step 7) If the time required from the first transportation / transportation detection to the second transportation / transportation detection is within, for example, 5 minutes (YES in step 6), it is assumed that the transportation / transportation is detected. Stop monitoring.

That is, since the transportation of the construction machine vehicle 10 is determined by detecting the movement of the construction machine vehicle 10 with the engine stopped a plurality of times within a fixed time, the first detector 11 and the second detector are detected. It is possible to prevent misjudgment based on accidental misdetection of 12 times, and to reliably detect transportation and transportation that would lead to theft of the vehicle. Further, it is possible to make a quick discrimination within a limited time.

(Step 8) The discrimination means 17 outputs a warning signal indicating that the construction machine vehicle 10 is being transported.

(Step 9) When the warning signal is output, the management center 16 inquires of the operator 18 or the user 19 to check whether the construction machine vehicle 10 is stolen. If the vehicle is stolen, the vehicle position information transmitting device 20 transmits the vehicle position information to the management center 16, and the vehicle position is specified from the position information to search for the stolen vehicle.

(Step 10) Even if the construction machine vehicle 10 is transported and transferred, it may not always be stolen.
Since there is a possibility that the construction machine vehicle 10 is transported and transferred from the user 19 to the operator 18, it is checked whether or not it is a transfer for returning this vehicle, and if the vehicle is returned, this vehicle transfer is performed. Terminate the detection system.

(Step 11) If it is neither theft nor return of the vehicle, normal on-site movement is conceivable, so after a certain period of time has passed, the situation is returned to and then Step 2 is returned to.
Repeat the monitoring of the transportation of vehicles.

In this way, even though the first detector 11 detects the engine stop, the second detector 11
When the movement of the construction machine vehicle 10 is detected by 12, the discrimination means 17 automatically discriminates that the construction machine vehicle 10 is transported and transferred, so that the user 19 and this user 19
It is possible to easily detect a transportation transfer that leads to the theft of the construction machine vehicle 10 without requiring any special operation by an operator working underneath.

Further, the construction machine vehicle 10 with the engine stopped
When the movement of is detected multiple times within a limited time,
Since it is determined that the construction machine vehicle 10 is being transported,
It is possible to prevent misjudgment of the judgment means 17 based on the accidental misdetection of the first detector 11 and the second detector 12 only once, and it is possible to surely detect the transportation transfer that would lead to the theft of the construction machine vehicle 10.

Further, the user 19 of this construction machine vehicle 10
Alternatively, the operator does not need to perform any operation, and the operator may perform exactly the same operation as the construction machine vehicle 10 not equipped with this system. Therefore, it is not necessary to inform the user 19 or the operator whether or not the system is installed, and the security is high.

In the illustrated embodiment, the computer of the management center 16 is the discriminating means 17, but the controller 13 on the vehicle side may be the discriminating means.

The present system is not limited to the construction machine vehicle 10, but can be widely applied to vehicles operated by an engine.

[0046]

According to the invention described in claim 1, when the movement of the vehicle is detected by the second detector even though the engine stop is detected by the first detector, the determination is made. Since the means automatically determines that the vehicle is transported and transported, it is possible to detect a transportation transport that would lead to the theft of the vehicle without requiring any special operation by the user or operator, and this system is not installed. Since the operation is exactly the same as that of the vehicle, high security can be obtained.

According to the second aspect of the present invention, since the transportation of the vehicle is determined by detecting the movement of the vehicle with the engine stopped a plurality of times within a fixed time, the first detector and the second detection are performed. The probability of misjudgment based on erroneous detection of a container can be reduced, and the transportation and transportation that may lead to the theft of the vehicle can be reliably detected.

According to the third aspect of the present invention, by using the existing engine lubricating oil pressure sensor to detect the decrease in the engine lubricating oil pressure, the engine stop can be detected inexpensively and reliably.

According to the fourth aspect of the present invention, the movement of the vehicle can be detected inexpensively and reliably by detecting the vibration and acceleration of the vehicle using the existing vibration / accelerometer.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a vehicle transfer detection system according to the present invention.

FIG. 2 is a flowchart showing a control procedure of the transfer detection system of the above.

[Explanation of symbols]

11 First detector 12 Second detector 17 Discrimination means

Claims (4)

[Claims] 1. A first detector for detecting the presence or absence of engine operation of a vehicle operating on an engine, a second detector for detecting the presence or absence of movement of the vehicle, and an engine stop detected by the first detector. And a determination means for determining that the vehicle is transported by transportation by detecting the movement of the vehicle by the second detector. 2. The discriminating means discriminates that the vehicle is transported by transportation when the movement of the vehicle with the engine stopped is detected a plurality of times within a fixed time. Vehicle transfer detection system. 3. The transfer detection system for a vehicle according to claim 1, wherein the first detector is an engine lubrication oil pressure sensor for detecting engine lubrication oil pressure. 4. The second detector is a vibration / accelerometer that detects at least one of vibration and acceleration of a vehicle.
The vehicle transfer detection system described.