WO2001032481A1 - Procede d'emission et de radiomessagerie pour alarme automobile, et systeme correspondant - Google Patents

Procede d'emission et de radiomessagerie pour alarme automobile, et systeme correspondant Download PDF

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Publication number
WO2001032481A1
WO2001032481A1 PCT/US1999/025678 US9925678W WO0132481A1 WO 2001032481 A1 WO2001032481 A1 WO 2001032481A1 US 9925678 W US9925678 W US 9925678W WO 0132481 A1 WO0132481 A1 WO 0132481A1
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WO
WIPO (PCT)
Prior art keywords
code
pager
phone
vehicle
warning
Prior art date
Application number
PCT/US1999/025678
Other languages
English (en)
Inventor
Weihao Xiao
Original Assignee
New Xu International
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by New Xu International filed Critical New Xu International
Priority to PCT/US1999/025678 priority Critical patent/WO2001032481A1/fr
Publication of WO2001032481A1 publication Critical patent/WO2001032481A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/102—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device a signal being sent to a remote location, e.g. a radio signal being transmitted to a police station, a security company or the owner
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/20—Countermeasures against jamming
    • H04K3/22—Countermeasures against jamming including jamming detection and monitoring
    • H04K3/224—Countermeasures against jamming including jamming detection and monitoring with countermeasures at transmission and/or reception of the jammed signal, e.g. stopping operation of transmitter or receiver, nulling or enhancing transmitted power in direction of or at frequency of jammer
    • H04K3/226—Selection of non-jammed channel for communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/60—Jamming involving special techniques
    • H04K3/65—Jamming involving special techniques using deceptive jamming or spoofing, e.g. transmission of false signals for premature triggering of RCIED, for forced connection or disconnection to/from a network or for generation of dummy target signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/60—Jamming involving special techniques
    • H04K3/68—Jamming involving special techniques using passive jamming, e.g. by shielding or reflection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/88—Jamming or countermeasure characterized by its function related to allowing or preventing alarm transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/22—Jamming or countermeasure used for a particular application for communication related to vehicles

Definitions

  • the present invention relates generally to a car alarm transmitting and paging process and system thereof, and more particularly to improvements to an existing conventional car alarm transmitter and conventional phone pager which allow pager to be used dually as a pager and also as an alarm activation notification device.
  • the prior art has provided car alarm systems with various functions, methods, layouts, and constructions to combat the auto-thefts and corresponding climbs in insurance rates.
  • the prior art can be broadly classified as localized car alarm systems and car alarm systems with tracking and locating capabilities.
  • Localized car alarms such as disclosed by U.S. Patent No. 5,132,660 to Chen and Shee and U.S. Patent No. 5,049,867 to Stouffer activate the alarm system when the vehicle is intruded upon.
  • U.S. Patent No. 5,132,660 to Chen and Shee and U.S. Patent No. 5,049,867 to Stouffer activate the alarm system when the vehicle is intruded upon.
  • U.S. Patent No. 5,132,660 to Chen and Shee and U.S. Patent No. 5,049,867 to Stouffer activate the alarm system when the vehicle is intruded upon.
  • U.S. Patent No. 5,132,660 to Chen and Shee and U.S. Patent No. 5,049,867
  • U.S. Patent No. 5,432,495 to Tompkins discloses a beeper controlled auto security system in which a vehicle disabling device such as an ignition kill switch is selectively activated either by a hand held RF transmitter unit or a beeper paying system satellite transmission initiated by a telephone call which may be at a very remote location from the vehicle.
  • U.S. Patent No. 5,432,495 does not disclose an improvement to an existing commercial phone pager to allow the pager to be used as an alarm activation device, as the present invention does.
  • the beeper taught in this invention cannot operate dually as a conventional phone beeper and an alarm activation device.
  • U.S. Patent No. 5,140,308 to Tanaka discloses a mobile radio system which has an upward and downward control channel for controlling a call-out transmitted from a mobile terminal station, independently from a communication channel.
  • This invention includes a portable receiver which notifies the user of alarm activation, but the receiver does not work dually as a conventional phone pager.
  • U.S. Patent No. 5,334,974 to Simms et al. Discloses a fully automatic personal security system which combines the advantages of worldwide LORAN-C or GPS navigation with the substantially worldwide communication capabilities of a cellular telephone or communication satellite.
  • This invention does not incorporate the use of a conventional phone pager and thus does not disclose a dually functional pager which operates both as a conventional phone pager and also as a notification device of alarm activation.
  • U.S. Patent No. 5,365,217 to Toner discloses a method and apparatus for monitoring safety of persons within a predetermined area which includes personal transmitters for wirelessly transmitting distress signals. These transmitters, however, are not conventional phone pagers and thus do not function dually as a pager and an alarm notification device. Disclosure of Invention
  • the present invention significantly improves upon the prior art by providing a car alarm system whereby an existing in-vehicle car alarm and a commonly available phone pager are utilized in conjunction with the present invention to provide a real time car alarm activation notice to the user even though the user may not be in the vicinity of the car and to void the necessity of the user having to carry separate pagers for the car alarm system and for personal use.
  • the primary object of the present invention is to provide an improvement to a conventional phone pager and a transmitter used in conjunction with a conventional car alarm in order to provide the user with real time notification of alarm activation.
  • a further object of the present invention is to provide an alarm system which reduces the amount of pagers or notification devices a carrier must hold in order to have access to adequate notification.
  • Another object of the present invention is to provide a car alarm transmitting and paging process and system thereof, which can insure the successive transmission and reception of the alarm signal in any environments.
  • Another object of the present invention is to provide a car alarm transmitting and paging process and system thereof, which can detect all possible frauds.
  • the present invention relates generally to a vehicle security system and particularly to the improvement of an existing conventional phone pager which allows the pager to be used dually as a phone pager and also as an alarm activation notification device, wherein a transmitter is used in conjunction with a conventional vehicle alarm to transmit the notification of alarm activation to the carrier of the modified pager. Because the modified pager still accepts incoming phone pages and operates as a conventional pager, this invention obviates the necessity of owning and carrying two separate pagers, one for normal pager use, and the other for notification of alarm activation.
  • the present invention provides a car alarm system which can still notify the owner of attempted theft when the transmitting antenna is interfered with or broken.
  • Fig. 1 is a schematic diagram of a basic alarm and paging system.
  • Fig. 2 is a schematic diagram of a basic alarm transmitter.
  • Fig. 3 is a schematic diagram of a basic alarm pager.
  • Fig. 4 is a schematic diagram of a basic alarm system with group antenna.
  • Fig. 5 is a schematic diagram of a private paging ⁇ cellular alarm system.
  • Fig. 6 is a schematic diagram of a public vehicle alarm system.
  • Fig. 7 is a schematic diagram illustrating a switching between private and public alarm system.
  • Fig. 8 is a schematic diagram of the transmitting device used in conjunction with a conventional alarm system according to an alternative mode of the present invention.
  • Fig. 9 is a schematic diagram of the modified conventional phone pager according to the above alternative mode of the present invention. Best Mode for Carrying Out the Invention
  • the basic configuration of the present invention comprises a common vehicle alarm a transmitting means 02, such as a transmitter or a transceiver, and a modified conventional pager 05, as shown in Fig 1 Because sensors are normally used to trigger the activation of a car alarm, when a sensor of a conventional car alarm is activated, the transmitter 02 transmits a signal directly to the modified conventional pager 05 which notifies the user of the activation of the alar
  • the transmitter 02 comprises a microprocessor 24, wherein an alarm output interface 21 connects the sensors of the alarm system 22 to the microprocessor 24
  • the alarm can be activated by the user either in vehicle or remotely through the alarm control 20
  • the user ' s digital ID along with "safe " and "warning " digital alarm status codes are programmed into the microprocessor 24.
  • the microprocessor sends the appropriate digital alarm status code to the tone encoder 25.
  • the tone encoder 25 converts the digital code into specific modulation format and RF frequencies
  • the radio frequencies are then sent to the amplifier 26 which are then broadcasted via an antenna 27
  • a programmer 23 is provided to input digital code data into the microprocessor 24
  • the transmitter frequencies and coding format of the transmitter are the same as those used by conventional phone paging systems so that the phone pager can recen e signals from the vehicle transmitter
  • the encoder translate the digital code Irom ihe microprocessor into a sequence of corresponding tone signal under the formal of the local communication regulation In the U S , it is called Metropage
  • the area code "818 " is represented by three tone signals of "1728 Hz" "741 H/ ⁇ and "1728 H/ "
  • the radio frequencies will be different according to the pager compam the user is with
  • the power of the transmitter will be preset as strong as possible to reach the pager carrier even when the carrier is in a poor area for radio signal transaction But the powei should be limited to a certain level so that it will not violate FCC or other local regulations For the best results, this alarm is to be applied as a license free electronic device
  • FIG 3 is a schematic diagram of a conventional phone pager However, it is also the diagram for the modified conventional pager 05 of the present invention, since the maior modification only involves the improvement of the microprocessor inside the pager.
  • the modified conventional pager 05 comprises an antenna 40, an amplifier 41, a decoder 43, a microprocessor 45, a power monitor 42, control battens 44, and a display and audio output 46.
  • the modified conventional pager 05 differs from a conventional pager only in that the microprocessor 45 is reprogrammed in the unique way disclosed in this invention in order to receive and recognize multiple paging signals, namely, the "safe" and "warning" codes stored within the microprocessor 24 of the transmitter 02 and the signal sent from the phone paging station.
  • the interface 21 of the alarm 01 induces the microprocessor 24 to send a "safe" digital alarm status code to the encoder 25, which then is broadcasted via the antenna 27.
  • the receiving antenna 04 of the modified phone pager 05 receives the "safe" digital alarm frequency via the amplifier 41, and this frequency is converted to digital code through the tone decoder 43.
  • the microprocessor 45 then analyzes the "safe” code, and informs the user of the status of the alarm via the display and/or the audio output 46, or simply doesn't display anything to conserve batteries.
  • the transmitter 02 sends these messages periodically to constantly inform the user of the status of the alarm. Therefore, the microprocessor 45 in the pager may be programmed in a manner which allows the display and/or audio output does not respond to a "safe" status code received from the transmitter 02.
  • the interface 21 of the alarm 01 induces the microprocessor 24 to send a "warning" digital alarm status code to the tone encoder 25, which then is broadcasted via the antenna 27.
  • the receiving antenna 40 of the modified phone pager 05 receives the "warning" digital alarm signal via the amplifier 41, and this signal is converted to digital code through the tone decoder 43.
  • the microprocessor 45 then analyzes the "warning" code, and informs the user of the breach of the vehicle alarm via the display and/or the audio output 46.
  • the pager 05 In the event that thieves break the antenna 03 of the transmitter 02 in order to stop transmission of the "warning" code to the pager 05, the pager 05 does not receive the typical "safe” code, and thus a resulting "warning" code is generated in the microprocessor 45 of the pager 05, and is consequently shown on the display and through the audio output 46. This prohibits thieves from preventing the transmission of the "warning" code to the user. Thus, whether the sensors of the car alarm 01 are triggered or the transmitting antenna 03 is broken by potential thieves, the user is notified via the pager 05.
  • the microprocessor in the modified phone pager of this invention is reprogrammed so that the user may toggle between alarm mode and normal pager mode.
  • the pager responds both to the signal from the vehicle transmitter as well as the signal from the phone paging station.
  • normal mode the pager only responds to the signal from the phone paging station. The reason to do this is to prevent the pager from keep alerting the user when no "save" code is received because the user don't want to activate the vehicle alarm.
  • the pager in the alarm system continuously monitors the "safe" code sent by the transmitter and informs the user the safe status of the vehicle.
  • the CPU on the pager is programmed in such a way that it will give the priority to respond to the incoming phone call.
  • the pager gives the priority to respond to the alarm status.
  • the present invention improves the RF signal transaction by preventing the vehicle alarm from sharing the same antenna for general radio reception, wherein a special antenna for paging frequencies is used so that RF signal will be effetely transmitted.
  • a so-called Cellular/SMR antenna in the side pockets of a car's non- metallic front or rear bumper can also be used.
  • This hidden broadband antenna operates in the paging frequencies with certain amount of gain in a nearly omnidirectional pattern around the car.
  • the hidden antenna is protected from weather or car washer damage and with no visible masts. Theft and vandalism are minimized.
  • planer antenna PCS dB diamond antenna, patch antenna and other types of in-door antenna, which provide ultra-compact size, minimum visual impact and high performance for in-door open spaces.
  • omnidirectional antenna which radiates RF signal in all directions because, in general, it is not determined where the user is located.
  • antenna groups 63 As shown in Fig. 4, the application of antenna groups 63 is illustrated, wherein it is an optimum selection of different types of antennas such that each antenna will have relatively higher gain and cover different direction.
  • the RF signal from the transmitter 61 is divided through the power divider 62 to the antenna group 63. These will help RF signal to penetrate the close parking structure and have wider coverage.
  • those big parking structures 87 may install in-door antennas and RF radiating cables 86, as shown in Fig. 5, so as to improve the RF transmission.
  • This system will pick up the alarm signal from the vehicle alarm inside the parking structure by in-door antennas 86 and transmit it to the user through an external antenna 88.
  • cellular phone or PCS
  • the vehicle owner might carry a portable communication device which combines cellular phone and pager into one unit.
  • a cellular phone can also be included into this alarm system so that the car owner can use this alarm system by either carrying a common pager or a cellular phone, or a portable communication device having both cellular phone and pager functions, as shown in Fig.5.
  • the cellular phone similar to the pager described above, still communicates with the vehicle alarm directly without any public system involved to prevent service charge.
  • all features related to the pager method can alternatively be applied to the cellular phone method. That is, after the user presets the alarm system , the vehicle transmitter 82 continuously transmits a "safe" code directly to the cellular phone 92 without any assistance of the public networks.
  • the transmission format is the same as the cellular phone.
  • the CPU inside the cellular is reprogrammed such that the cellular phone keeps silent and displays the "safe" status.
  • the vehicle transmitter 82 will send a "warning" code to the cellular phone 82 so that it will alert the user by display and sound. If the alarm antenna 85 or any other components is destroyed such that no signal could be sent out, the cellular phone 92 will also alert the user because of such drop out of the incoming "safe" signal.
  • the user can select between the private format (as shown in
  • transmitter 103 continuously transmits the "safe" code in a compatible format to the nearest base station 109 .
  • the base station will then transfer this "safe" code to the user's cellular phone 120 (or PCS).
  • the vehicle transmitter 103 will send the "warning" code through the base station 103 to the user's cellular phone 120.
  • the user's handset will alert the user upon receiving the "warning" code or receives no specific signal at all because of the damage of the alarm antenna or other part of the alarm system.
  • the pager 117 is allowed to transmit a very short message to the base station to save channel spacing and lower cost.
  • the car transmitter 102 will continuously send the alarm status to the paging base station 113 in the same format as the two-way paging system.
  • the base station will send this signal to 2-way pager 117 of the subscriber to report the car security status.
  • a reference table is provided to the user. It is well known that RF communication is reciprocal. That is, if the reception is weak in an environment, the transmission will also be weak. Therefore, after parking the vehicle, the user can compare the local signal level against that on the table. If his pager, cellular phone, PCS, two-way pager, or the vehicle receiver indicates the RF signal from the near public network is below certain level, the user will preset the vehicle alarm into a public mode from the CPU programmer before he leaves the vehicle.
  • a receiver, or transceiver 134 which can be preset to receive either paging, cellular, PCS signal, or all of them from the public network, as shown in Fig. 7.
  • the receiver 148 carried by the user continuously monitors the signal level from the vehicle transceiver 134 and will alert the user upon receiving a weak alarm signal. When the user finds out the signal is too weak, he will send out a request by his cellular phone 148, PCS or two-way pager to the public network 143.
  • Such request can also be sent out automatically by the user's hand-set 148 upon the detection of the weak signal from the vehicle.
  • the public network 143 Upon the receiving of this request, the public network 143 will send a command to the vehicle.
  • the CPU Upon the detection of this command by the vehicle receiver 134, the CPU will switch the alarm transmitter 134 from private into public format so that the alarm signal can effetely be transmitted through the public network 143 to the user's receiver 148.
  • the use, or the user's receiver 148 itself can periodically request the public network 143 to reset the vehicle alarm system 143 back to private mode. If the signal from the private mode is back to normal again, the system will stay with the private mode until a weak signal is detected again.
  • Fraud detection is a major feature of this alarm system.
  • the pager will detect such theft because of the loss of the continuous "safe" signal.
  • the theft destroys the system by slowly isolating the antenna from the pager so that the RF signal drops gradually, the pager might treat it as normal conditions as if the user walks away from the vehicle.
  • the theft duplicates a fraud 'safe" signal similar to the alarm system before isolating the antenna from the user, the pager may not detect such theft.
  • a batten on the pager can be pushed to record the signal level when the user arrives in his destination.
  • the power monitor 42 in the pager will compare the incoming signal continuously with the recorded level.
  • the signal level appears on the pager will certainly change significantly in a short period of time, which will cause the pager to alert the user.
  • the pager is programmed not to respond to those slow changes of signal level when the user walks away from the vehicle or moves around at the designation.
  • the present invention can detect fraud signal by using any available anti-fraud coding technique.
  • the alarm from the vehicle can be programmed with some "pin code” as used in cellular phone system such that the pager will only recognize this specific code as its "home” signal. Otherwise, the pager will alert the user if it receives any other different coding.
  • Figs. 8 and 9 illustrate an alternative mode according to the above embodiment of the present invention, wherein the car alarm transmitting and paging system also comprises a transmitter 100 and a modified conventional pager 200. Because sensors are normally used to trigger the activation of a car alarm, when a sensor of a conventional car alarm is activated, the transmitter 100 transmits a signal to the modified conventional pager 200 which notifies the user of the activation of the alarm.
  • the transmitter 100 comprises a microprocessor 110, wherein a relay 130 connects the sensors of the alarm system 120 to the microprocessor 110.
  • the user's digital ID along with "safe" and "warning" digital alarm status codes are programmed into the microprocessor 110, and the microprocessor sends the appropriate digital alarm status code to the tone encoder 150, wherein the tone encoder 150 converts the digital code into tone frequencies which in turn are converted into radio frequencies by the frequency modulator 160. The radio frequencies are then sent to the FM amplifier 170 which are then broadcasted via an antenna 180.
  • a keypad 140 is provided to input digital code data into the microprocessor 110.
  • the transmitter frequencies and coding format of the transmitter are the same as those used by conventional phone paging systems so that the phone pager can receive signals from the vehicle transmitter.
  • the tone encoder translates the digital code from the microprocessor into a sequence of corresponding tone signal under the format of the local communication regulation.
  • Metropage In the U.S., it is called Metropage.
  • the area code "818" is represented by three tone signals of "1728 Hz", “741 Hz", and "1728 Hz”.
  • the radio frequencies will be different according to the pager company the user is with.
  • the power of the transmitter is strong enough to reach the pager carrier even when the carrier is in a difficult area for radio communications. But the power should be limited to a certain level so that it will not violate FCC regulations. For the best results, this alarm is to be applied as a license free electronic device.
  • FIG. 9 is a schematic diagram of a conventional phone pager. However, it is also the diagram for the modified conventional pager 200 of the present invention, since the modification only involves the improvement of the microprocessor inside the pager.
  • the modified conventional pager 200 comprises an antenna 210, a FM receiver 220, a tone decoder 230, a microprocessor 240, a display 250, and an audio output 260.
  • the modified conventional pager 200 differs from a conventional pager only in that the microprocessor 240 is reprogrammed in the unique way disclosed in this invention in order to receive and recognize multiple paging signals, namely, the "safe" and "warning" codes stored within the microprocessor 1 10 of the transmitter 100 and the signal sent from the phone paging station.
  • the relay 130 of the alarm 120 induces the microprocessor 110 to send a "safe" digital alarm status code to the tone encoder 150, which then is broadcasted via the antenna 180.
  • the receiving antenna 210 of the modified phone pager 200 receives the "safe" digital alarm frequency via the FM receiver, and this frequency is converted to digital code through the tone decoder 230.
  • the microprocessor 240 then analyzes the "safe” code, and informs the user of the status of the alarm via the display 250 and/or the audio output 260, or simply doesn't display anything to conserve batteries.
  • the transmitter 100 sends these messages periodically to constantly inform the user of the status of the alarm. Therefore, the microprocessor 240 may be programmed in a manner which allows the display and/or audio output does not respond to a "safe" status code received from the transmitter 100.
  • the relay 130 of the alarm 120 induces the microprocessor 110 to send a "warning" digital alarm status code to the tone encoder 150, which then is broadcasted via the antenna 180.
  • the receiving antenna 210 of the modified phone pager 200 receives the "warning" digital alarm signal via the FM receiver, and this signal is converted to digital code through the tone decoder 230.
  • the microprocessor 240 analyzes the "warning" code, and informs the user of the status of the alarm via the display 250 and/or the audio output 260.
  • the pager 200 does not receive the typical "safe” code, and thus a resulting "warning" code is generated in the microprocessor 240 of the pager 200, and is consequently shown on the display 250 and through the audio output 260. This prohibits thieves from preventing the transmission of the "warning" code to the user. Thus, whether the sensors of the car alarm 120 are triggered or the transmitting antenna 180 is broken by potential thieves, the user is notified via the pager 200.
  • the present invention substantially proceeds a car alarm transmitting and paging process, which comprises the following steps. (a) Continuously or periodically broadcast a "safe" code, which is a transmitting signal with a specific frequency, from the vehicle transmitter when the vehicle alarm system is activated to normally function, wherein the frequencies and coding format of vehicle transmitter are compatible with the phone pager.
  • a "safe" code which is a transmitting signal with a specific frequency
  • the present invention may further comprises a pre-step of selecting between an alarm mode and a normal mode for the phone pager, wherein in the alarm mode, the phone pager responds both to the signal from the vehicle transmitter as well as the signal from the phone paging station, and in the normal mode, the phone pager only responds to the signal from the phone paging station.
  • the step (a) further comprises the sub-steps of:
  • the step (b) further comprises the sub-steps of:
  • the notifying step (c) can be proceeded by notifying the user of the phone pager of the safe status of the vehicle alarm system with a safe message via a display and/or an audio output of the phone pager; or notifying the user of the phone pager of the safe status of the car alarm system by allowing the display and/or audio output do not respond to the "safe" code received from the car transmitter.
  • the step (d) further comprises the sub-steps of:
  • the antenna can be the vehicle's antenna responsive to general radio reception.
  • the antenna can also be an additional independent antenna for paging frequencies, a so-called Cellular/SMR antenna, a planer antenna, a PCS dB diamond antenna, a patch antenna, or other types of in-door antenna.
  • the RF signal transmission can be further enhanced by installing an in-door antenna and radiating cables in a parking structure where the vehicle parked inside, so that the "safe" code and the "warning" code are first received by the in-door antenna of the parking structure and then transmitted to the respective phone pager through an external antenna of the parking structure.
  • the step (e) further comprises the sub-steps of:
  • the notifying step (f) is processed by notifying the user of the phone pager of the warning status of the car alarm system with a "warning" message via a display and/or an audio output of the phone pager.
  • the phone pager will not receive the continuously or periodically broadcasting "safe” code.
  • the transmitter CPU is preprogrammed to generate the "warning" digital code once the receiving of the "safe” code is ceased for any reason. Therefore, the user will also be notified of the warning status of the car alarm system with a "warning" message via a display and/or an audio output of the phone pager. Thus, whether the sensors of the car alarm system are triggered or the transmitting antenna is broken by potential thieves, the user is notified via the phone pager.
  • the phone pager When a phone call is coming to said phone pager while said phone pager is monitoring the "safe” code, the phone pager responds to said phone call first and switches back to monitor the "safe” code after processing of the incoming phone call. However, when the "warning" code is received or no "safe” code is received, the phone pager responds to said
  • the pager described previously can also include a cellular phone or a cellular phone with a built-in pager, which can perform the same function as the common pager.
  • the vehicle alarm signal can also transmitted through a public network, such as cellular, PCS, and two-way paging system.
  • a public network such as cellular, PCS, and two-way paging system.
  • the vehicle alarm signal can be transmitted through the public network by using its control channels and paging channels.
  • the alarm signal from the vehicle is first received by an in-door antenna of a parking structure where the vehicle is parked. Then the alarm signal is transmitted to the user through an external antenna in the parking structure.
  • more than one antenna or an antenna group are installed on the vehicle.
  • the alarm signal can be transmitted via this antenna group to the user for better coverage.
  • the alarm signal can be transmitted selectively between direct (private) mode and public mode, wherein the transmitter of the vehicle alarm can be replaced by a transceiver (transmitter & receiver) for transmitting alarm signal and receiving control signal from public networks.
  • the CPU of the transmitter is reprogrammed and connected to a RF switch adapted to selectively switch the transmitter between direct (private) and mode.
  • the car alarm transmitting and paging process of the present invention can also comprise the steps of:

Abstract

L'invention concerne un procédé d'émission (02) et de radiomessagerie (03) pour alarme automobile (01) ainsi que le système correspondant, lequel système utilise un dispositif (05) de radiomessagerie existant classique et un émetteur tel qu'un dispositif (05) de radiomessagerie ou un téléphone cellulaire destiné à être utilisé à la fois comme dispositif de radiomessagerie téléphonique et comme dispositif (05) de notification d'activation d'alarme. Le procédé selon l'invention consiste à diffuser en continu un code « de sécurité » ; à vérifier et à recevoir en continu ledit code « de sécurité » au moyen du dispositif (05) de radiomessagerie ; à notifier l'utilisateur dudit dispositif de radiomessagerie de l'état normal du système d'alarme du véhicule ; à diffuser un code « d'avertissement » ; à recevoir ledit code « d'avertissement » au lieu du code « de sécurité » au moyen du dispositif (05) de radiomessagerie ; à activer le dispositif (05) de radiomessagerie pour notifier également à son utilisateur un état d'alarme lorsque ni le code « de sécurité » ni le code « d'avertissement » n'est reçu par le dispositif (05) de radiomessagerie.
PCT/US1999/025678 1999-11-01 1999-11-01 Procede d'emission et de radiomessagerie pour alarme automobile, et systeme correspondant WO2001032481A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1999/025678 WO2001032481A1 (fr) 1999-11-01 1999-11-01 Procede d'emission et de radiomessagerie pour alarme automobile, et systeme correspondant

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US8159336B2 (en) 2009-12-21 2012-04-17 Continental Automotive Systems Us, Inc. Apparatus and method for maintaining communication with a stolen vehicle tracking device
US8175573B2 (en) 2009-12-21 2012-05-08 Continental Automotive Systems, Inc. Apparatus and method for maintaining communications with a vehicle in the presence of jamming
CN102656614A (zh) * 2009-12-21 2012-09-05 大陆汽车系统公司 用于广播rf干扰器存在的检测的装置和方法
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CN113525297A (zh) * 2021-08-13 2021-10-22 东风汽车集团股份有限公司 一种在车辆上电过程中提示钥匙不在车内的方法

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US8884821B2 (en) 2009-12-21 2014-11-11 Continental Automotive Systems, Inc. Apparatus and method for determining vehicle location
US8319615B2 (en) 2009-12-21 2012-11-27 Continental Automotive Systems, Inc. Apparatus and method for detecting jamming of communications
WO2011078996A1 (fr) * 2009-12-21 2011-06-30 Continental Automotive Systems, Inc. Appareil et procédé de détection de brouillage de communication
CN102656614A (zh) * 2009-12-21 2012-09-05 大陆汽车系统公司 用于广播rf干扰器存在的检测的装置和方法
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US8175573B2 (en) 2009-12-21 2012-05-08 Continental Automotive Systems, Inc. Apparatus and method for maintaining communications with a vehicle in the presence of jamming
US8159336B2 (en) 2009-12-21 2012-04-17 Continental Automotive Systems Us, Inc. Apparatus and method for maintaining communication with a stolen vehicle tracking device
US8639209B2 (en) 2009-12-21 2014-01-28 Continental Automotive Systems, Inc. Apparatus and method for detecting a cloned base station
US9102293B2 (en) 2009-12-21 2015-08-11 Continental Automotive Systems, Inc. Apparatus and method for reducing false alarms in stolen vehicle tracking
US10027682B2 (en) 2009-12-21 2018-07-17 Continental Automotive Systems, Inc. Apparatus and method for detecting a cloned base station
US9031538B2 (en) 2012-02-16 2015-05-12 Continental Automotive Systems, Inc. Method and apparatus to determine if a cellular jamming signal is malicious or non-malicious based on received signal strength
US10814831B2 (en) 2016-09-15 2020-10-27 Josué GALICIA RODRÍGUEZ Alarm system for a vehicle integrating wireless communication devices and mobile devices associated with said system
CN113525297A (zh) * 2021-08-13 2021-10-22 东风汽车集团股份有限公司 一种在车辆上电过程中提示钥匙不在车内的方法
CN113525297B (zh) * 2021-08-13 2022-04-15 东风汽车集团股份有限公司 一种在车辆上电过程中提示钥匙不在车内的方法

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