CN100395785C - Automobile anti-theft device with global positioning device identification - Google Patents

Abstract

The invention relates to an automobile anti-theft device with a global positioning device identification function, which comprises a global positioning device and an on-board anti-theft host. The global positioning device is arranged on a vehicle, is used for receiving wireless signals of at least one satellite and is electrically connected to the vehicle-mounted anti-theft host, and the vehicle-mounted anti-theft host is provided with a first flag which has two states of satellite-free signals and satellite signals and is used for indicating whether the satellite signals exist or not; when the vehicle-mounted anti-theft host is set to be in the anti-theft mode and the first flag is changed from the satellite signal-free state to the satellite signal-containing state, the vehicle-mounted anti-theft host transmits an abnormal signal.

Description

Car anti-theft device with global positioning device identification

technical field

The invention relates to an automobile anti-theft device, in particular to an automobile anti-theft device with global positioning device identification.

Background technique

In order to prevent the car from being stolen or accidents, the car owner usually installs an anti-theft device. When the car owner is not in the car, the anti-theft device can be set to activate and use various detectors to detect abnormal conditions.

Therefore, if the vehicle is abnormal, for example, when the vehicle is invaded, the detector is used to sense and trigger the car anti-theft device. Most of the traditional car anti-theft devices attract attention by making harsh chirping sounds, which can make thieves escape after hearing the sound and cannot succeed, or let the car owner rush back to the vehicle parking place to care about the abnormality after hearing the chirping sound of the anti-theft device. situation.

However, although the beeping function of the traditional car anti-theft device can effectively deter theft, the range of the beeping sound is limited. The car owner may not be able to hear the beeping sound from the anti-theft device, and often misses the opportunity for rescue. In addition, or when the car is towed, even if the anti-theft device keeps beeping along the road, it is not easy for the car owner in the distance to be aware of the abnormal condition of the car, or even unable to track it. Only when the car owner returns to the parking place will he find out The car has been towed away. Many of the above situations are due to the fact that the known anti-theft device does not have the function of proactively notifying the car owner, not only cannot completely guarantee the safety of the vehicle, notify the car owner in real time, but also cause noise problems to the surroundings, which is not very ideal.

Simultaneously, since the global positioning device has been generally installed on automobiles in recent years, it is used as driving navigation. As shown in Figure 1, when a car activates a global positioning device in an unshielded area 200, the global positioning device has a certain number of channels (channel), and each channel is used to receive a satellite group (101-108) signal . When the global positioning device is initialized, it first receives the time signal transmitted by the satellites (101-108). Then, from the satellite group (101-108), with 3 satellites as a group, select a group with the smallest degree of accuracy (HDOP) of its horizontal coordinates to calculate the position of the global positioning device, wherein the accuracy of the horizontal coordinates The degree of strength (HDOP) is the square root value of the sum of the squares of errors such as latitude and longitude. For example, three satellites 101, 102, and 108 are used as a group, and when the HDOP of the horizontal coordinates of the satellites 101, 102, and 108 is the smallest, the signal of the satellites 101, 102, and 108 is used to calculate the HDOP. GPS location.

When the signal of the satellite 108 is blocked and cannot be received, the position of the global positioning device is calculated by another set of HDOPs with the next smallest horizontal coordinate. However, when the car enters a place with shelters such as tunnels and parking towers, the global positioning device cannot receive any satellite signals, and it takes about 10 to 30 minutes to reactivate the global positioning device. Known technology is to utilize global positioning device as automobile anti-theft device, and it can face when automobile is stolen in the place that shelters such as parking tower etc., reactivate this global positioning device and needs about 10～30 minutes not to wait, although can now The location of the car is known, but the car may have been towed a distance from the scene of the theft to effectively stop the theft. Cars may also be packed in containers, making GPS impossible to locate. Because of this, the inventor, based on the spirit of active invention, thinks of a kind of "car anti-theft device with global positioning device recognition" that can solve the above problems.

Contents of the invention

The main purpose of the present invention is to provide a car anti-theft device with global positioning device identification, which can actively detect satellite signals in the communication range, and store corresponding flags, so as to change the state from no satellite signal to satellite When the signal status is active, the car owner is actively notified, so that the car owner can control the vehicle status in real time.

Another object of the present invention is to provide a car anti-theft device with global positioning device identification, which can actively notify the car owner when the car has abnormal conditions, so that the car owner can control the vehicle status in real time.

In order to achieve the above object, the present invention mainly provides a car anti-theft device with global positioning device identification, including a global positioning device and a vehicle anti-theft host, and its technical characteristics include:

A global positioning device, assembled on a vehicle, the global positioning device wirelessly receives wireless signals from at least one satellite; and

A vehicle-mounted anti-theft host is assembled on the vehicle, and is electrically connected to at least one detector, at least one alarm device and the global positioning device, and has a first flag. The at least one detector is assembled on the The vehicle is at least one corresponding predetermined position and can send a corresponding abnormal signal. When the vehicle-mounted anti-theft host receives the corresponding abnormal signal from the at least one detector, the vehicle-mounted anti-theft host controls the at least one The alarm device sends out an alarm, and the first flag has two states of no satellite signal and satellite signal, which are used to indicate whether the global positioning device has received a satellite signal;

Wherein, when the vehicle-mounted anti-theft host is set to the anti-theft mode, and the first flag changes from the status of no satellite signal to the status of satellite signal, the vehicle-mounted anti-theft host will send an abnormal signal to the at least one alarm device.

Description of drawings

FIG. 1 is a schematic diagram of an operating environment of a preferred embodiment of the present invention.

FIG. 2 is a system functional block diagram of a preferred embodiment of the present invention.

FIG. 3 is a schematic diagram of a first flag state according to a preferred embodiment of the present invention.

Explanation of symbols in the figure:

Location Area 100, 200 Satellite 101～108

Vehicle 90 Vehicle anti-theft host 10

Global Positioning Device 20 First Flag 11

Wireless communication device 51 Anti-theft horn 50

Backup Battery 60 Detector 41, 42, 43

Detailed ways

In order to further understand the technical content of the present invention, a preferred specific embodiment is given and described as follows.

FIG. 1 is a schematic diagram of the operating environment of this embodiment. Please refer to FIG. 2. It is a functional block diagram of this embodiment. A car anti-theft device with global positioning device identification of this embodiment is assembled on a vehicle 90. And mainly include a vehicle-mounted anti-theft host 10 and a global positioning device 20 (Global Position System, GPS). Wherein, the vehicle-mounted anti-theft host 10 and the vehicle-mounted global positioning device 20 are electrically connected to each other. The vehicle-mounted anti-theft host 10 has a first flag 11, and the first flag 11 has two states of no satellite signal and satellite signal, and is used to indicate whether the global positioning device 20 has received a satellite signal.

The vehicle-mounted anti-theft host 10 is also electrically connected to at least one detector 41 , 42 , 43 , an anti-theft horn 50 and a wireless communication device 51 . The aforementioned detectors 41, 42, 43 can be door detectors, keyhole switch detectors, trunk switch detectors and other related anti-theft devices. When the vehicle 90 is set to prevent theft, if the corresponding predetermined position occurs In case of an abnormal situation, for example, the door of the vehicle 90 is abnormally opened or the keyhole is abnormally inserted into the keyhole without releasing the anti-theft setting, the detector will send an abnormal signal S to the vehicle-mounted anti-theft host 10, and the vehicle-mounted anti-theft host 10 will control at least one anti-theft horn 50 to emit an alarm sound to notify the owner of the vehicle 90 that the vehicle 90 has abnormal conditions.

When the vehicle 90 moves to a sheltered area (Local Area, LA) 100, after the vehicle 90 is parked, the car owner sets the anti-theft, which will cause the vehicle-mounted anti-theft host 10 to enter the anti-theft mode. The satellite signal is received, so the first flag 11 is in the state of no satellite signal.

When the vehicle-mounted anti-theft host 10 is set to the anti-theft mode and the vehicle 90 is stolen or towed to move to another location area (LA) 200 , the other location area (LA) 200 has no shelter. The global positioning device 20 detects a wireless signal from a satellite, and at this time, the vehicle anti-theft host 10 changes the first flag 11 from a status without a satellite signal to a status with a satellite signal according to the status of the global positioning device 20 . Therefore, it can be concluded that the vehicle 90 is stolen or towed and moved to another location area (LA) 200 . At this time, the vehicle-mounted anti-theft host 10 will generate a relocation signal and control at least one anti-theft horn 50 to send an alarm sound to notify the owner of the vehicle 90 that the vehicle 90 has abnormal conditions. In addition to controlling the anti-theft horn 50 to issue an alarm A, the aforementioned vehicle anti-theft host 10 also transmits an alarm signal to a wireless communication device 51, and transmits the alarm signal to a communication address designated by the owner through a wireless connection. 51 can be a GPRS mobile phone, GSM, PDA, etc., and the transmitted alarm A can be a short message, pre-recorded phrase, fax text and email, etc. The communication address specified by the above-mentioned car owner can be the number of the above-mentioned global positioning device mobile phone in this embodiment, and can also be the car owner's home phone number, company phone number, facsimile machine number, and e-mail box.

The aforementioned vehicle-mounted anti-theft host 10 can also periodically update the state in the first flag 11 according to the state of the global positioning device 20 when it is in the anti-theft mode, and compare it. When the state in the state changes from the original state without satellite signal to the state with satellite signal, the vehicle anti-theft host 10 will control at least one anti-theft horn 50 to send an alarm sound to notify the owner of the vehicle 90 that there is an abnormal situation in the vehicle 90.

In addition, in this embodiment, the car anti-theft device identified by the global positioning device further includes a spare battery 60, which is electrically connected to the vehicle anti-theft host 10 and the global positioning device 20, for providing power when the vehicle power is exhausted. The electricity enables the GPS-identified car anti-theft device to continue to operate.

The above-mentioned embodiments are only examples for convenience of description, and the scope of rights claimed by the present invention should be based on the scope of the claims, rather than limited to the above-mentioned embodiments.

Claims (6)

1. the alarms and security systems for automobiles of a tool global location device identification is characterized in that, comprising:

One global location device is mounted on the vehicle, the wireless signal of at least one satellite of this global location device wireless receiving; And

One vehicle-mounted antitheft main frame, be mounted on this vehicle, and be electrically connected at least one detector respectively, at least one alarm device and this global location device, and has one first flag, this at least one detector is mounted on the precalculated position of at least one correspondence of this vehicle, and can send the abnormal signal of a correspondence, when this vehicle-mounted antitheft main frame receives this correspondence abnormal signal that this at least one detector transmits, this vehicle-mounted antitheft main frame and this at least one alarm device of control send an alarm, this first flag possesses no satellite signals and two kinds of states of satellite signals is arranged, and whether receives satellite signals in order to indicate this global location device;

Wherein, when this vehicle-mounted antitheft host setting is an anti-theft modes, and this first flag has been when having changed into the satellite signals state by no satellite signals state, and this vehicle-mounted antitheft main frame just can transmit a dystopy signal to this at least one alarm device.

2. the alarms and security systems for automobiles of tool global location device identification as claimed in claim 1 is characterized in that, this at least one alarm device is meant an anti-theft loudspeaker.

3. the alarms and security systems for automobiles of tool global location device identification as claimed in claim 1 is characterized in that, this at least one alarm device be meant a wireless communication apparatus can wireless online to the mailing address of car owner's appointment.

4. the alarms and security systems for automobiles of tool global location device identification as claimed in claim 3 is characterized in that the mailing address of this car owner's appointment is meant a Mobile Directory Number.

5. have the alarms and security systems for automobiles of global location device identification according to claim 1, it is characterized in that this alarm is meant a note.

6. as the alarms and security systems for automobiles of tool global location device identification as described in the claim 3, it is characterized in that this wireless communication apparatus is meant a wireless telecommunications mobile phone.

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