JP3910856B2 - Detection method using wireless device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a detection method using a wireless device, and more particularly, to a method of detecting a driver's boarding / exiting by attaching a master wireless device and a slave wireless device that transmit and receive a packet to and from a car and a user-owned property according to predetermined rules. .
[0002]
[Prior art]
In the navigation device, in order to register a point, it is necessary to designate a desired point with a cursor and then perform a predetermined registration operation. Also, when the current car position is a desired point, the predetermined registration operation is performed. There is a need to do.
In the car security device, in order to perform a security operation, arming is instructed to the in-vehicle security device body using a special remote controller for security. When the door is opened and closed during such arming, these are detected by a sensor to report the occurrence of an abnormality. To cancel the security operation, instruct disarming from the remote control. The reason for performing the security operation by arming in this way is that it is not known whether the door opener is a legitimate driver or a malicious third party.
[0003]
[Problems to be solved by the invention]
In the conventional point registration method, there is a problem that the point registration operation is complicated because it always requires the user's key operation.
In addition, the conventional abnormality occurrence detection method has a problem that an expensive security device is required because an abnormality cannot be detected unless the arming state is set.
An object of the present invention is to detect boarding / alighting of a user driver and to automatically register the spot based on the number of boarding / alighting at the same spot of the user driver.
[0004]
[Means for Solving the Problems]
According to the present invention, there is provided a detection method for detecting boarding / exiting of a vehicle using a wireless device, wherein a master wireless device and a slave wireless device that transmit and receive packets according to a predetermined rule are attached to the vehicle and a user possessed property, respectively, and a door vehicle master wireless device at the time of opening and closing sends packets periodically to obtain the ID information from the slave radio device, based on the ID information received status from slave wireless device detects the alighting or boarding, the master when alighting When the wireless device no longer receives ID information from the slave wireless device , or when the master wireless device receives ID information from the slave wireless device upon boarding, the number of times of getting on and off corresponding to the position information of the stop point is counted When the number of boarding / exiting of a point becomes larger than the set number, the point position is automatically registered. It is achieved by elevating wherein providing.
[0005]
For example, (1) Attach a master wireless device and a slave wireless device that send and receive packets according to predetermined rules to the car and the user's property. (2) When the door is opened and closed, the in-vehicle master wireless device acquires ID information from the slave wireless device. Packet transmission periodically, (3) detection of getting off or boarding based on the reception status of ID information from the slave wireless device, and (4) the master wireless device when receiving the vehicle ID information from the slave wireless device When it stops receiving, or when the master wireless device receives ID information from the slave wireless device when boarding, it counts the number of times of getting on and off corresponding to the location information of the stopping point, and (5) the number of times of getting on and off at the predetermined point is the set number When it becomes larger, the point position is automatically registered. In this way, it is possible to automatically register points where the user driver frequently gets on and off, and to display marks specific to the user on the navigation map.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
(A) First embodiment
(a) Configuration FIG. 1 is a configuration diagram of a first embodiment of the present invention in which the location of a user driver is detected and position registration is automatically performed.
The control unit 1 provided in the car CAR performs control for detecting location registration and occurrence of an abnormality. The navigation control device 2 performs navigation control, incorporates a master wireless device, for example, a Bluetooth device 3, and includes a point registration memory 4. The door lock device 5 locks or unlocks the door electromagnetic lock of the automobile according to a door lock / unlock instruction generated by operating a switch provided on the engine key.
[0010]
The operation and display unit 6 performs various operations and displays, the door opening / closing sensor 7 detects opening / closing of the door, the traveling sensor 8 detects driving / stopping of the automobile, and the ignition on / off detecting unit 9 turns on / off the ignition switch. Off is detected, and the respective detection results are input to the control unit 1. The mobile phone 10 performs normal telephone communication and reports an abnormality to the user driver's mobile phone or home in accordance with an instruction from the control unit 1. The RAM 11 stores a table CSPT that stores the user driver's boarding / alighting positions and the number of boarding / alighting times.
Further, a wireless device, for example, a Bluetooth device 16 as a slave is attached to a portable item 15 such as a cellular phone, a portable reproduction device, a portable information terminal, an engine key, etc. possessed by the user driver.
[0011]
(B) Bluetooth
Bluetooth is a short-distance wireless link intended to replace cables between mobile units and fixed electronic devices, or between them. Data is transferred in packets using the TDD (Time-Division Duplex) method of 625 μs per slot. Frequency hopping that changes frequency every time is adopted. Using the same frequency hopping sequence, communication is performed by forming a piconet with one master and up to seven slaves. Details of the Bluetooth specification are described in Specification of the Bluetooth System Version 1.OA.
[0012]
In summary, in Bluetooth, when a master wants to communicate, it asks what kind of slaves are in the vicinity by using IQ packets, and each slave uses Bluetooth device addresses and clocks necessary for establishing a connection using FHS packets. Reply information to the master. That is, by performing an inquiry, it is possible to collect device addresses and clock information of all slaves that respond to the inquiry. The Bluetooth device address is a unique address given to all Bluetooth devices.
Thereafter, the master performs a process called Page using the Bluetooth device address and clock information of the selected predetermined slave, and actually establishes a connection with the slave, and transmits and receives data. In other words, when the master sends an ID packet to the selected slave and receives an acknowledgment for the ID packet from the slave, the master sends an FHS packet to the slave, and its Bluetooth device address and clock information After that, the communication phase is entered.
[0013]
(C) Point Registration Processing FIG. 2 is a point registration processing flow according to the present invention. The control unit 1 monitors whether the vehicle has stopped from running (engine stopped) based on signals from the running sensor 8 and the ignition on / off detection unit 9 (step 101). Based on the signal from the sensor 7, it is monitored whether the door is opened or closed (step 102), and if the door is opened or closed, an inquiry procedure is executed directly on the Bluetooth device (referred to as BT device) 3 or via the navigation control unit 2. Instruct them to do so. As a result, the master BT device 3 transmits an IQ packet (step 103).
[0014]
When the slave BT device 16 attached to the device owned by the user driver, for example, the mobile phone 15 is within the IQ packet receivable range from the master BT device 3, the master device stores the Bluetooth device address (ID information) and clock information. In response to this, when moving outside the IQ packet receivable range, such information cannot be transmitted.
[0015]
Therefore, the control unit 1 monitors whether the master BT device 3 has received the ID information of the slave BT device 16 (step 104). If received, the control unit 1 causes the master BT device 3 to transmit an IQ packet every predetermined time ( Step 105, 103). If the user driver possesses the mobile phone 15 and moves to the area where Bluetooth communication is impossible, “NO” is determined in the step 104. Thereby, the control unit 1 acquires the current vehicle position from the navigation device 2 (step 106). Next, referring to the position / alighting count table CSPT, it is checked whether the count value at the same position has already been stored (step 107). Is saved (step 108), and thereafter the process returns to the beginning.
[0016]
On the other hand, if the count value at the same position is already stored in step 107, the count value is incremented by 1 (step 109), and it is checked whether the count value is equal to or greater than the set value (step 110). If it is less than the set value in step 110, the process returns to the beginning, and if it is greater than the set value, it is checked with reference to the point registration memory 4 whether the local point has already been registered (step 111). In step 111, if the point has already been registered, the process returns to the beginning. If not registered, the point is registered in the point registration memory 4 (step 112), and thereafter, the process returns to the beginning. As described above, the point where the user driver gets off the set number of times or more is registered in the point memory 4, and the navigation device displays the point registration mark at the corresponding point on the map. It should be noted that the points that get off frequently are important points for the driver (company, home, family hospital, etc.).
[0017]
In FIG. 2, the point is automatically registered based on the number of times of getting off, but the point can be registered based on the number of times of getting on. FIG. 3 is a processing flow for registering a point based on the number of times of boarding. It is checked whether the vehicle is currently stopped (step 151), and if it is stopped, it is checked whether the door has been opened or closed to get on (step 152). If the button is opened or closed, the BT device 3 is instructed to execute the inquiry procedure directly or via the navigation control unit 2. As a result, the master BT device 3 transmits an IQ packet (step 153). The control unit 1 monitors whether the master BT device 3 has received the ID information of the slave BT device 16 (step 154), and if received, determines that the user driver has boarded and performs the same processing as step 106 and subsequent steps in FIG. Do. Even if a person other than the driver gets on, the master BT device 3 does not receive the ID information of the slave BT device 16 and returns to the beginning.
[0018]
(B) Second Embodiment FIG. 4 is a process flow of the second embodiment for detecting that a third person other than the user driver has opened and closed the door after the door is locked, and reporting the occurrence of an abnormality. Is the same.
The control unit 1 checks whether the door is locked (step 201). If the door is locked, the control unit 1 checks whether the door is opened or closed based on a signal from the door opening / closing sensor 7 (step 202).
If the door is opened or closed, the BT device 3 is instructed to execute the inquiry procedure directly or via the navigation control unit 2. As a result, the master BT device 3 transmits an IQ packet to the slave BT device (step 203).
[0019]
When the user driver opens and closes the door, the slave BT device 16 attached to the device (cell phone) 15 possessed by the user driver responds to the IQ packet from the master BT device 3 with a Bluetooth device address ( ID information) and clock information can be responded. However, when a third party other than the user driver opens and closes the door, the Bluetooth device address (ID information) and clock information of the slave BT device 16 cannot respond in response to the IQ packet from the master BT device 3.
[0020]
From the above, the control unit 1 monitors whether the master BT device 3 has received the ID information of the Bluetooth device 16 (step 204). If received, the control unit 1 regards that a valid user driver has opened and closed the door and ends the process. On the other hand, if the ID information of the slave BT device 16 is not received, it is assumed that an unauthorized third party has opened and closed the door (abnormality detection, step 205), an alarm is generated, and the mobile An abnormality is reported by calling a mobile phone or a home phone (step 206).
[0021]
(C) Third Embodiment FIG. 5 shows that when an unlocking instruction is given while the door is locked, or when an engine start is instructed, it operates if it is an instruction of a valid user driver. FIG. 11 is a configuration diagram of a third embodiment for notifying an abnormality without performing an operation if it is an instruction.
[0022]
The control unit 21 is provided in the automobile and executes door lock / unlock control, engine start control, and the like. The door lock device 22 locks and unlocks the door electronic lock based on an instruction from the control unit 21. The engine start control unit 23 performs engine start control in accordance with an instruction from the control unit 21. The infrared light receiving unit 24 receives an optical signal for instructing the door lock / unlock and engine start sent from the light emitting unit with a built-in engine key, and inputs it to the control unit 21. A Bluetooth device (BT device) 25 operating as a master communicates with a slave BT device with a built-in engine key. The mobile phone 26 performs normal telephone communication, and notifies the user driver's mobile phone or home of the abnormality that has been added to the vehicle according to an instruction from the control unit 21. The engine key 31 has a switch 31a for instructing door lock / unlock and an engine start switch 31b, and a Bluetooth device (BT device) 31c that operates as a slave.
[0023]
FIG. 6 is a processing flow of the control unit 21 in the third embodiment.
The control unit 21 monitors whether there is a door unlock request or an engine start request from the engine key 31 (step 301), and if there is any request, instructs the BT device 25 to execute an inquiry procedure. As a result, the master BT device 25 transmits the IQ packet to the slave BT device 31c (step 302).
[0024]
When the user driver makes a door unlock request or engine start request using his / her engine key 31, the slave BT device 31c attached to the engine key 31 responds to the IQ packet from the master BT device 25 with a Bluetooth device Can respond with address (ID information) and clock information. However, when a third party other than the user driver makes a door unlock request or engine start request, the Bluetooth device address (ID information) and clock information of the slave BT device 31c are returned in response to the IQ packet from the master BT device 25. I cannot respond.
[0025]
From the above, the control unit 21 monitors whether the master BT device 25 has received the ID information of the slave BT device 31c (step 303), and if received, the control unit 21 considers that the request is from a valid user driver or the door lock device 22 or The engine start control unit 23 is instructed to unlock the door or start the engine (step 304). However, if the ID information of the slave BT device 31c is not received, it is assumed that the request is an unauthorized third party, and the door unlock or engine start is not instructed. As a result, the requested operation is not executed (step 305). Thereafter, an alarm is generated and the mobile phone 26 calls the mobile phone of the car owner or the home phone to report the abnormality (step 306).
[0026]
(D) Fourth Embodiment FIG. 7 is a block diagram of a fourth embodiment for preventing the theft of in-vehicle protected properties (audio equipment, navigation devices, tires, etc.).
The control unit 41 controls the Bluetooth device 42 serving as a master and executes anti-theft control. The removal detection sensor 43 detects that the protected object 44 has been removed from its original position, and notifies the control unit 41 of it. A Bluetooth device 45 as a slave is attached to the protected property 44. The mobile phone 46 performs normal telephone communication, and notifies the user driver's mobile phone or home of the abnormality added to the car according to an instruction from the control unit 41.
[0027]
FIG. 8 is a processing flow of the control unit 41 in the fourth embodiment.
Based on the signal from the removal detection sensor 43, the control unit 41 monitors whether the object to be protected 44 has been removed from its original position (step 401). If it is removed for some reason, the control unit 41 instructs the BT device 42 to execute an inquiry procedure. Thereby, the master BT device 42 transmits the IQ packet to the slave BT device 45 (step 402).
[0028]
If the property 45 is removed from its original position but is not carried away, the slave BT device 45 responds to the IQ packet from the master BT device 42 and sends the Bluetooth device address (ID information) and clock information to the master BT device. Can respond to 42. However, the slave BT device 45 cannot respond to the IQ packet from the master BT device 42 if it is carried to a position where Bluetooth communication is not possible.
From the above, the control unit 41 monitors whether the master BT device 42 has received the ID information of the slave BT device 45 (step 403), and if it is received, the protected property 44 is regarded as not being carried, and thereafter Waiting for the elapse of time (step 404), the processing after step 401 is continued, and the IQ packet is transmitted again.
[0029]
On the other hand, if the ID information of the slave BT device 45 is not received in step 403, it is considered that an abnormality has occurred (step 405) .Alarming is performed, and the mobile phone 46 calls the mobile owner's mobile phone or home phone to detect the abnormality. Report (step 406).
[0030]
【The invention's effect】
As described above, according to the present invention, a master wireless device and a slave wireless device that send and receive packets according to a predetermined rule are attached to each of an automobile and a portable property, and the in-vehicle master wireless device becomes a slave wireless device when a predetermined event occurs. Since the packet is transmitted in order to acquire the ID information of the mobile property owner, it is possible to detect the boarding / alighting of the portable property holder with respect to the car depending on whether the master wireless device receives the ID information from the slave wireless device.
In addition, according to the present invention, it is possible to automatically register points where the user driver frequently gets on and off, and to display marks specific to the user on the navigation map.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a first embodiment of the present invention.
FIG. 2 is a point registration processing flow according to the present invention.
FIG. 3 is a processing flow for registering a point based on the number of times of boarding.
FIG. 4 is a processing flow of a second embodiment in which a third party other than the user driver detects that an abnormality has occurred by detecting that a door has been opened or closed while the door is locked.
FIG. 5 is a configuration diagram of a third embodiment in which an abnormality is reported without performing an operation if an unauthorized third party unlocks and starts an engine.
FIG. 6 is a processing flow of a control unit in the third embodiment.
FIG. 7 is a configuration diagram of a fourth embodiment for preventing the theft of an in-vehicle protection target property (audio device, navigation device, tire, etc.).
FIG. 8 is a processing flow of a control unit in the fourth embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Control part 2 Navigation control apparatus 3 Bluetooth (Bluetooth) apparatus 4 Point registration memory 5 Door lock apparatus 6 Operation and display part 7 Door opening / closing sensor 8 Driving sensor 9 Ignition on / off detection part 10 Cellular phone 15 Portable property 16 Bluetooth apparatus
CSPT Position / Boarding frequency table

Claims (1)

In a detection method for detecting getting on and off of an automobile using a wireless device,
Attach a master wireless device and a slave wireless device that send and receive packets to the car and the property owned by the user according to the prescribed rules,
When opening and closing the door, the in-vehicle master wireless device periodically sends packets to obtain ID information from the slave wireless device,
Based on the ID information reception status from the slave wireless device, detect getting off or getting on,
When the master radio device no longer receives the ID information from the slave radio device when alighting, or when the master radio device receives the ID information from the slave radio device during ride, counts the passenger count corresponding to the position information of the stop point And
When the number of times of getting on and off at a given point becomes larger than the set number, the point position is automatically registered.
The boarding / alighting detection method characterized by the above-mentioned.

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