Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
110 words
A security system for use in a vehicle or a portable unit having a radio transmitting device (14), said system comprising signalling means (20,22,24,26) for generating a signal in response to an alarm condition, a control unit (12) connected to said signalling means for initiating a transmission on the radio transmitting device (14) in response to said alarm condition, and means (36,38,42,30) for recording a location message, said control unit (12) being operative to produce an alert signal periodically in order to prompt recording of a fresh location message using said recording means (36,38,42,30), said location message forming at least part of the transmission, in response to an alarm condition.
Claim 2
Dependent Claim
110 words
A security system for use in a vehicle or a portable unit having a radio transmitting device (14), said system comprising signalling means (20,22,24,26) for generating a signal in response to an alarm condition, a control unit (12) connected to said signalling means for initiating a transmission on the radio transmitting device (14) in response to said alarm condition, and means (36,38,42,30) for recording a location message, said control unit (12) being operative to produce an alert signal periodically in order to prompt recording of a fresh location message using said recording means (36,38,42,30), said location message forming at least part of the transmission, in response to an alarm condition.
Claim 3
Dependent Claim
89 words
A security system according to claim 1, wherein the signalling means comprises an output from one or more of the following: a manually operable panic button (20), a temperature sensor carried in the body of a refrigerated vehicle, an impact switch, the location message recording means (30) when a message has not been recorded in response to an alert signal within a predetermined time, a vehicle alarm system (22) responsive to intrusion or attempted intrusion, and a radio receiver (24) co-operable with a hand held, short range transmitter (26).
Claim 4
Dependent Claim
51 words
A security system as claimed in any one of the preceding claims, further comprising storage means (28) in which vehicle identification information is stored and which is accessed by said control unit (12) such that the stored information forms a further part of the transmission in response to an alarm condition.
Claim 5
Dependent Claim
57 words
A security system as claimed in any one of the preceding claims, further comprising a message generator (32) operatively connected to an odometer (34) of the vehicle in order to generate a further part of the transmission in response to an alarm condition representing the distance travelled by the vehicle since the last alert signal was produced.
Claim 6
Dependent Claim
40 words
A security system as claimed in any one of the preceding claims, further comprising means for inhibiting the production of alert signals in response to an input signal indicating that the ignition has been turned off and/or the vehicle locked.
Claim 7
Dependent Claim
67 words
A security system as claimed in claim 1 in the form of a portable unit comprising a radio transmitter (14), wherein the signalling means is either a panic button (20) fitted to the unit, and/or an output from the location message recording means (30) indicating that an alert signal has not been recorded in response to an alert signal within a predetermined time, and/or an orientation sensor.
Claim 8
Dependent Claim
41 words
A security system as claimed in any one of the preceding claims, wherein the radio transmitting device (14) is capable of receiving coded control signals which are fed to the control unit (12) to control the function of the unit (12).
Claim 9
Dependent Claim
65 words
A security system as claimed in any one of the preceding claims, further comprising storage mean (28)s for storing a plurality of different messages, said control unit (12) being operatively connected to said storage means (28) to select a particular message for transmission in reponse to an alarm condition in dependence on which of a pluarilty of said signalling means (20,22,24) detected the alarm condition.